/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedVariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 09:30:40,322 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 09:30:40,323 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 09:30:40,350 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-25 09:30:40,364 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 09:30:40,365 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 09:30:40,366 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 09:30:40,367 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 09:30:40,369 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 09:30:40,369 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 09:30:40,371 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 09:30:40,377 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 09:30:40,378 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 09:30:40,378 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 09:30:40,379 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 09:30:40,380 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 09:30:40,385 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 09:30:40,390 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 09:30:40,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 09:30:40,391 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 09:30:40,392 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedVariableLbe.epf [2021-03-25 09:30:40,417 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 09:30:40,417 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 09:30:40,419 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 09:30:40,419 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 09:30:40,419 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 09:30:40,419 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 09:30:40,419 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 09:30:40,420 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 09:30:40,420 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 09:30:40,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 09:30:40,420 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 09:30:40,420 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 09:30:40,421 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 09:30:40,421 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 09:30:40,421 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 09:30:40,421 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 09:30:40,421 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 09:30:40,421 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 09:30:40,421 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 09:30:40,421 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 09:30:40,421 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 09:30:40,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 09:30:40,422 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 09:30:40,422 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 09:30:40,422 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 09:30:40,422 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 09:30:40,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 09:30:40,422 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 09:30:40,422 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 09:30:40,422 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 09:30:40,422 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 09:30:40,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 09:30:40,706 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 09:30:40,708 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 09:30:40,709 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-25 09:30:40,710 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-25 09:30:40,711 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier.wvr.bpl [2021-03-25 09:30:40,712 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier.wvr.bpl' [2021-03-25 09:30:40,751 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 09:30:40,753 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-25 09:30:40,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 09:30:40,754 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 09:30:40,754 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 09:30:40,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 09:30:40" (1/1) ... [2021-03-25 09:30:40,769 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 09:30:40" (1/1) ... [2021-03-25 09:30:40,774 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 09:30:40,775 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 09:30:40,776 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 09:30:40,776 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 09:30:40,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 09:30:40" (1/1) ... [2021-03-25 09:30:40,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 09:30:40" (1/1) ... [2021-03-25 09:30:40,782 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 09:30:40" (1/1) ... [2021-03-25 09:30:40,783 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 09:30:40" (1/1) ... [2021-03-25 09:30:40,785 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 09:30:40" (1/1) ... [2021-03-25 09:30:40,785 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 09:30:40" (1/1) ... [2021-03-25 09:30:40,786 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 09:30:40" (1/1) ... [2021-03-25 09:30:40,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 09:30:40,787 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 09:30:40,787 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 09:30:40,787 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 09:30:40,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 09:30:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 09:30:40,865 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-25 09:30:40,867 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-25 09:30:40,867 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-25 09:30:40,867 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-25 09:30:40,867 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-25 09:30:40,868 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-25 09:30:40,868 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-25 09:30:40,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 09:30:40,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 09:30:40,868 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-03-25 09:30:40,868 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-03-25 09:30:40,868 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-03-25 09:30:40,868 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-03-25 09:30:40,868 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-03-25 09:30:40,868 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-03-25 09:30:40,868 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2021-03-25 09:30:40,868 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2021-03-25 09:30:40,869 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2021-03-25 09:30:40,869 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2021-03-25 09:30:40,870 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2021-03-25 09:30:40,870 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2021-03-25 09:30:40,871 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 09:30:41,074 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 09:30:41,075 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-25 09:30:41,076 INFO L202 PluginConnector]: Adding new model barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 09:30:41 BoogieIcfgContainer [2021-03-25 09:30:41,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 09:30:41,077 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 09:30:41,077 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 09:30:41,079 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 09:30:41,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 09:30:40" (1/2) ... [2021-03-25 09:30:41,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62151e1b and model type barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 09:30:41, skipping insertion in model container [2021-03-25 09:30:41,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 09:30:41" (2/2) ... [2021-03-25 09:30:41,081 INFO L111 eAbstractionObserver]: Analyzing ICFG barrier.wvr.bpl [2021-03-25 09:30:41,084 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 09:30:41,087 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-25 09:30:41,087 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 09:30:41,178 INFO L149 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2021-03-25 09:30:41,190 INFO L253 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-03-25 09:30:41,203 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 09:30:41,203 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 09:30:41,203 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 09:30:41,203 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 09:30:41,204 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 09:30:41,204 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 09:30:41,204 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 09:30:41,204 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 09:30:41,211 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 65 transitions, 202 flow [2021-03-25 09:30:41,239 INFO L129 PetriNetUnfolder]: 4/53 cut-off events. [2021-03-25 09:30:41,239 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-03-25 09:30:41,243 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 53 events. 4/53 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 109 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 63. Up to 3 conditions per place. [2021-03-25 09:30:41,243 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 65 transitions, 202 flow [2021-03-25 09:30:41,246 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 51 transitions, 150 flow [2021-03-25 09:30:41,247 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:30:41,253 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 51 transitions, 150 flow [2021-03-25 09:30:41,255 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 51 transitions, 150 flow [2021-03-25 09:30:41,256 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 51 transitions, 150 flow [2021-03-25 09:30:41,270 INFO L129 PetriNetUnfolder]: 4/51 cut-off events. [2021-03-25 09:30:41,270 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-03-25 09:30:41,271 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 51 events. 4/51 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 108 event pairs, 0 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 63. Up to 3 conditions per place. [2021-03-25 09:30:41,273 INFO L142 LiptonReduction]: Number of co-enabled transitions 1336 [2021-03-25 09:30:41,354 INFO L154 LiptonReduction]: Checked pairs total: 2462 [2021-03-25 09:30:41,355 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-25 09:30:41,356 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 110 [2021-03-25 09:30:41,379 INFO L129 PetriNetUnfolder]: 4/45 cut-off events. [2021-03-25 09:30:41,380 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-03-25 09:30:41,380 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:30:41,380 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:30:41,381 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:30:41,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:30:41,384 INFO L82 PathProgramCache]: Analyzing trace with hash -1252450072, now seen corresponding path program 1 times [2021-03-25 09:30:41,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:30:41,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966688682] [2021-03-25 09:30:41,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:30:41,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:30:41,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:41,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:30:41,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:41,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:30:41,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:41,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:30:41,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:30:41,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966688682] [2021-03-25 09:30:41,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:30:41,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 09:30:41,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115910849] [2021-03-25 09:30:41,485 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 09:30:41,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:30:41,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 09:30:41,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 09:30:41,494 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 74 [2021-03-25 09:30:41,495 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 46 transitions, 140 flow. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:41,495 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:30:41,495 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 74 [2021-03-25 09:30:41,496 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:30:41,513 INFO L129 PetriNetUnfolder]: 6/52 cut-off events. [2021-03-25 09:30:41,513 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-03-25 09:30:41,514 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 52 events. 6/52 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 113 event pairs, 1 based on Foata normal form. 1/47 useless extension candidates. Maximal degree in co-relation 73. Up to 6 conditions per place. [2021-03-25 09:30:41,515 INFO L132 encePairwiseOnDemand]: 71/74 looper letters, 2 selfloop transitions, 2 changer transitions 0/46 dead transitions. [2021-03-25 09:30:41,515 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 46 transitions, 148 flow [2021-03-25 09:30:41,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 09:30:41,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 09:30:41,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 212 transitions. [2021-03-25 09:30:41,523 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.954954954954955 [2021-03-25 09:30:41,523 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 212 transitions. [2021-03-25 09:30:41,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 212 transitions. [2021-03-25 09:30:41,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:30:41,526 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 212 transitions. [2021-03-25 09:30:41,527 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:41,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:41,531 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:41,532 INFO L185 Difference]: Start difference. First operand has 61 places, 46 transitions, 140 flow. Second operand 3 states and 212 transitions. [2021-03-25 09:30:41,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 46 transitions, 148 flow [2021-03-25 09:30:41,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 46 transitions, 116 flow, removed 0 selfloop flow, removed 12 redundant places. [2021-03-25 09:30:41,536 INFO L241 Difference]: Finished difference. Result has 52 places, 46 transitions, 116 flow [2021-03-25 09:30:41,537 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=52, PETRI_TRANSITIONS=46} [2021-03-25 09:30:41,538 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, -9 predicate places. [2021-03-25 09:30:41,538 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:30:41,538 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 46 transitions, 116 flow [2021-03-25 09:30:41,538 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 46 transitions, 116 flow [2021-03-25 09:30:41,539 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 46 transitions, 116 flow [2021-03-25 09:30:41,545 INFO L129 PetriNetUnfolder]: 4/46 cut-off events. [2021-03-25 09:30:41,545 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-25 09:30:41,546 INFO L84 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 46 events. 4/46 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 93 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 48. Up to 3 conditions per place. [2021-03-25 09:30:41,546 INFO L142 LiptonReduction]: Number of co-enabled transitions 1078 [2021-03-25 09:30:41,627 INFO L154 LiptonReduction]: Checked pairs total: 2408 [2021-03-25 09:30:41,628 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 09:30:41,628 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 90 [2021-03-25 09:30:41,629 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 42 transitions, 108 flow [2021-03-25 09:30:41,629 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:41,629 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:30:41,629 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:30:41,629 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 09:30:41,629 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:30:41,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:30:41,630 INFO L82 PathProgramCache]: Analyzing trace with hash -1964532269, now seen corresponding path program 1 times [2021-03-25 09:30:41,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:30:41,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024043298] [2021-03-25 09:30:41,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:30:41,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:30:41,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:41,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:30:41,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:41,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:30:41,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:41,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:30:41,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:30:41,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024043298] [2021-03-25 09:30:41,649 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:30:41,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 09:30:41,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703643296] [2021-03-25 09:30:41,650 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 09:30:41,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:30:41,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 09:30:41,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 09:30:41,651 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 78 [2021-03-25 09:30:41,652 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 42 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:41,652 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:30:41,652 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 78 [2021-03-25 09:30:41,652 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:30:41,662 INFO L129 PetriNetUnfolder]: 6/48 cut-off events. [2021-03-25 09:30:41,662 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-25 09:30:41,662 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 48 events. 6/48 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 100 event pairs, 1 based on Foata normal form. 1/44 useless extension candidates. Maximal degree in co-relation 56. Up to 6 conditions per place. [2021-03-25 09:30:41,662 INFO L132 encePairwiseOnDemand]: 75/78 looper letters, 2 selfloop transitions, 2 changer transitions 0/42 dead transitions. [2021-03-25 09:30:41,662 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 42 transitions, 116 flow [2021-03-25 09:30:41,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 09:30:41,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 09:30:41,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 224 transitions. [2021-03-25 09:30:41,664 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9572649572649573 [2021-03-25 09:30:41,664 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 224 transitions. [2021-03-25 09:30:41,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 224 transitions. [2021-03-25 09:30:41,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:30:41,665 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 224 transitions. [2021-03-25 09:30:41,665 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:41,666 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:41,667 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:41,667 INFO L185 Difference]: Start difference. First operand has 48 places, 42 transitions, 108 flow. Second operand 3 states and 224 transitions. [2021-03-25 09:30:41,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 42 transitions, 116 flow [2021-03-25 09:30:41,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 42 transitions, 112 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 09:30:41,668 INFO L241 Difference]: Finished difference. Result has 49 places, 42 transitions, 112 flow [2021-03-25 09:30:41,668 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=49, PETRI_TRANSITIONS=42} [2021-03-25 09:30:41,669 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, -12 predicate places. [2021-03-25 09:30:41,669 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:30:41,669 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 42 transitions, 112 flow [2021-03-25 09:30:41,669 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 42 transitions, 112 flow [2021-03-25 09:30:41,669 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 42 transitions, 112 flow [2021-03-25 09:30:41,674 INFO L129 PetriNetUnfolder]: 4/42 cut-off events. [2021-03-25 09:30:41,674 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-25 09:30:41,674 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 42 events. 4/42 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 46. Up to 3 conditions per place. [2021-03-25 09:30:41,675 INFO L142 LiptonReduction]: Number of co-enabled transitions 856 [2021-03-25 09:30:41,744 INFO L154 LiptonReduction]: Checked pairs total: 1433 [2021-03-25 09:30:41,745 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 09:30:41,745 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 76 [2021-03-25 09:30:41,745 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 38 transitions, 104 flow [2021-03-25 09:30:41,746 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:41,746 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:30:41,746 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:30:41,746 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 09:30:41,746 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:30:41,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:30:41,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1387637578, now seen corresponding path program 1 times [2021-03-25 09:30:41,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:30:41,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399331539] [2021-03-25 09:30:41,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:30:41,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:30:41,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:41,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:30:41,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:41,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:30:41,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:41,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:30:41,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:30:41,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399331539] [2021-03-25 09:30:41,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:30:41,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 09:30:41,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762903562] [2021-03-25 09:30:41,771 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 09:30:41,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:30:41,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 09:30:41,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 09:30:41,772 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 82 [2021-03-25 09:30:41,772 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 38 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:41,772 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:30:41,773 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 82 [2021-03-25 09:30:41,773 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:30:41,780 INFO L129 PetriNetUnfolder]: 5/40 cut-off events. [2021-03-25 09:30:41,780 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-25 09:30:41,781 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 40 events. 5/40 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 1 based on Foata normal form. 1/37 useless extension candidates. Maximal degree in co-relation 51. Up to 6 conditions per place. [2021-03-25 09:30:41,781 INFO L132 encePairwiseOnDemand]: 79/82 looper letters, 2 selfloop transitions, 2 changer transitions 0/38 dead transitions. [2021-03-25 09:30:41,781 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 38 transitions, 112 flow [2021-03-25 09:30:41,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 09:30:41,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 09:30:41,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 230 transitions. [2021-03-25 09:30:41,783 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9349593495934959 [2021-03-25 09:30:41,783 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 230 transitions. [2021-03-25 09:30:41,783 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 230 transitions. [2021-03-25 09:30:41,783 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:30:41,783 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 230 transitions. [2021-03-25 09:30:41,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:41,785 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:41,785 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:41,785 INFO L185 Difference]: Start difference. First operand has 45 places, 38 transitions, 104 flow. Second operand 3 states and 230 transitions. [2021-03-25 09:30:41,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 38 transitions, 112 flow [2021-03-25 09:30:41,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 38 transitions, 105 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-25 09:30:41,786 INFO L241 Difference]: Finished difference. Result has 45 places, 38 transitions, 105 flow [2021-03-25 09:30:41,786 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=105, PETRI_PLACES=45, PETRI_TRANSITIONS=38} [2021-03-25 09:30:41,786 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, -16 predicate places. [2021-03-25 09:30:41,787 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:30:41,787 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 38 transitions, 105 flow [2021-03-25 09:30:41,787 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 38 transitions, 105 flow [2021-03-25 09:30:41,787 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 38 transitions, 105 flow [2021-03-25 09:30:41,790 INFO L129 PetriNetUnfolder]: 4/38 cut-off events. [2021-03-25 09:30:41,790 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-25 09:30:41,791 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 38 events. 4/38 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 57 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 43. Up to 3 conditions per place. [2021-03-25 09:30:41,791 INFO L142 LiptonReduction]: Number of co-enabled transitions 648 [2021-03-25 09:30:41,854 INFO L154 LiptonReduction]: Checked pairs total: 687 [2021-03-25 09:30:41,854 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 09:30:41,854 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 67 [2021-03-25 09:30:41,854 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 34 transitions, 97 flow [2021-03-25 09:30:41,855 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:41,855 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:30:41,855 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:30:41,855 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 09:30:41,855 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:30:41,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:30:41,855 INFO L82 PathProgramCache]: Analyzing trace with hash -1072415755, now seen corresponding path program 1 times [2021-03-25 09:30:41,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:30:41,856 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328933179] [2021-03-25 09:30:41,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:30:41,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:30:41,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:41,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:30:41,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:41,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:30:41,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:41,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:41,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:41,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:41,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:41,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:41,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:41,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:41,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:41,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:42,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:42,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:42,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:42,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:42,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:42,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:42,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:42,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:42,044 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:30:42,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:30:42,061 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:30:42,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:30:42,082 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:30:42,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:42,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:30:42,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328933179] [2021-03-25 09:30:42,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:30:42,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-25 09:30:42,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493368344] [2021-03-25 09:30:42,086 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-25 09:30:42,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:30:42,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-25 09:30:42,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2021-03-25 09:30:42,088 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 86 [2021-03-25 09:30:42,089 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 34 transitions, 97 flow. Second operand has 13 states, 13 states have (on average 49.23076923076923) internal successors, (640), 13 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:42,089 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:30:42,089 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 86 [2021-03-25 09:30:42,089 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:30:42,530 INFO L129 PetriNetUnfolder]: 336/663 cut-off events. [2021-03-25 09:30:42,530 INFO L130 PetriNetUnfolder]: For 320/320 co-relation queries the response was YES. [2021-03-25 09:30:42,532 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1464 conditions, 663 events. 336/663 cut-off events. For 320/320 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3330 event pairs, 46 based on Foata normal form. 2/603 useless extension candidates. Maximal degree in co-relation 1434. Up to 347 conditions per place. [2021-03-25 09:30:42,535 INFO L132 encePairwiseOnDemand]: 72/86 looper letters, 30 selfloop transitions, 51 changer transitions 0/101 dead transitions. [2021-03-25 09:30:42,535 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 101 transitions, 498 flow [2021-03-25 09:30:42,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 09:30:42,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 09:30:42,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 803 transitions. [2021-03-25 09:30:42,539 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6224806201550388 [2021-03-25 09:30:42,539 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 803 transitions. [2021-03-25 09:30:42,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 803 transitions. [2021-03-25 09:30:42,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:30:42,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 803 transitions. [2021-03-25 09:30:42,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 53.53333333333333) internal successors, (803), 15 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:42,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 86.0) internal successors, (1376), 16 states have internal predecessors, (1376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:42,544 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 86.0) internal successors, (1376), 16 states have internal predecessors, (1376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:42,544 INFO L185 Difference]: Start difference. First operand has 41 places, 34 transitions, 97 flow. Second operand 15 states and 803 transitions. [2021-03-25 09:30:42,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 101 transitions, 498 flow [2021-03-25 09:30:42,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 101 transitions, 454 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 09:30:42,547 INFO L241 Difference]: Finished difference. Result has 58 places, 84 transitions, 409 flow [2021-03-25 09:30:42,547 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=409, PETRI_PLACES=58, PETRI_TRANSITIONS=84} [2021-03-25 09:30:42,547 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, -3 predicate places. [2021-03-25 09:30:42,547 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:30:42,547 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 84 transitions, 409 flow [2021-03-25 09:30:42,548 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 84 transitions, 409 flow [2021-03-25 09:30:42,548 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 84 transitions, 409 flow [2021-03-25 09:30:42,569 INFO L129 PetriNetUnfolder]: 200/461 cut-off events. [2021-03-25 09:30:42,569 INFO L130 PetriNetUnfolder]: For 123/123 co-relation queries the response was YES. [2021-03-25 09:30:42,571 INFO L84 FinitePrefix]: Finished finitePrefix Result has 998 conditions, 461 events. 200/461 cut-off events. For 123/123 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2406 event pairs, 45 based on Foata normal form. 0/396 useless extension candidates. Maximal degree in co-relation 976. Up to 209 conditions per place. [2021-03-25 09:30:42,573 INFO L142 LiptonReduction]: Number of co-enabled transitions 950 [2021-03-25 09:30:42,643 INFO L154 LiptonReduction]: Checked pairs total: 727 [2021-03-25 09:30:42,643 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 09:30:42,643 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 96 [2021-03-25 09:30:42,643 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 84 transitions, 411 flow [2021-03-25 09:30:42,644 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 49.23076923076923) internal successors, (640), 13 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:42,644 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:30:42,644 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:30:42,644 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 09:30:42,644 INFO L428 AbstractCegarLoop]: === Iteration 5 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:30:42,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:30:42,644 INFO L82 PathProgramCache]: Analyzing trace with hash 563805735, now seen corresponding path program 1 times [2021-03-25 09:30:42,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:30:42,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494986803] [2021-03-25 09:30:42,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:30:42,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:30:42,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:42,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:30:42,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:42,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:30:42,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:42,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:30:42,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:30:42,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494986803] [2021-03-25 09:30:42,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:30:42,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 09:30:42,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354564106] [2021-03-25 09:30:42,658 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 09:30:42,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:30:42,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 09:30:42,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 09:30:42,659 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 88 [2021-03-25 09:30:42,659 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 84 transitions, 411 flow. Second operand has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:42,659 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:30:42,659 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 88 [2021-03-25 09:30:42,659 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:30:42,679 INFO L129 PetriNetUnfolder]: 151/324 cut-off events. [2021-03-25 09:30:42,679 INFO L130 PetriNetUnfolder]: For 186/199 co-relation queries the response was YES. [2021-03-25 09:30:42,680 INFO L84 FinitePrefix]: Finished finitePrefix Result has 819 conditions, 324 events. 151/324 cut-off events. For 186/199 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1441 event pairs, 23 based on Foata normal form. 14/289 useless extension candidates. Maximal degree in co-relation 796. Up to 166 conditions per place. [2021-03-25 09:30:42,682 INFO L132 encePairwiseOnDemand]: 85/88 looper letters, 7 selfloop transitions, 3 changer transitions 0/82 dead transitions. [2021-03-25 09:30:42,682 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 82 transitions, 423 flow [2021-03-25 09:30:42,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 09:30:42,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 09:30:42,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 248 transitions. [2021-03-25 09:30:42,683 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9393939393939394 [2021-03-25 09:30:42,683 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 248 transitions. [2021-03-25 09:30:42,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 248 transitions. [2021-03-25 09:30:42,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:30:42,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 248 transitions. [2021-03-25 09:30:42,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:42,684 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:42,684 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:42,685 INFO L185 Difference]: Start difference. First operand has 58 places, 84 transitions, 411 flow. Second operand 3 states and 248 transitions. [2021-03-25 09:30:42,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 82 transitions, 423 flow [2021-03-25 09:30:42,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 82 transitions, 406 flow, removed 7 selfloop flow, removed 1 redundant places. [2021-03-25 09:30:42,688 INFO L241 Difference]: Finished difference. Result has 60 places, 82 transitions, 397 flow [2021-03-25 09:30:42,688 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=397, PETRI_PLACES=60, PETRI_TRANSITIONS=82} [2021-03-25 09:30:42,688 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, -1 predicate places. [2021-03-25 09:30:42,688 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:30:42,688 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 82 transitions, 397 flow [2021-03-25 09:30:42,689 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 82 transitions, 397 flow [2021-03-25 09:30:42,689 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 82 transitions, 397 flow [2021-03-25 09:30:42,703 INFO L129 PetriNetUnfolder]: 144/341 cut-off events. [2021-03-25 09:30:42,703 INFO L130 PetriNetUnfolder]: For 94/94 co-relation queries the response was YES. [2021-03-25 09:30:42,704 INFO L84 FinitePrefix]: Finished finitePrefix Result has 778 conditions, 341 events. 144/341 cut-off events. For 94/94 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1608 event pairs, 12 based on Foata normal form. 0/289 useless extension candidates. Maximal degree in co-relation 754. Up to 155 conditions per place. [2021-03-25 09:30:42,706 INFO L142 LiptonReduction]: Number of co-enabled transitions 734 [2021-03-25 09:30:42,785 INFO L154 LiptonReduction]: Checked pairs total: 127 [2021-03-25 09:30:42,786 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-25 09:30:42,786 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 98 [2021-03-25 09:30:42,786 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 81 transitions, 405 flow [2021-03-25 09:30:42,786 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:42,786 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:30:42,787 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:30:42,787 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 09:30:42,787 INFO L428 AbstractCegarLoop]: === Iteration 6 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:30:42,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:30:42,787 INFO L82 PathProgramCache]: Analyzing trace with hash -2033646558, now seen corresponding path program 1 times [2021-03-25 09:30:42,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:30:42,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072195790] [2021-03-25 09:30:42,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:30:42,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:30:42,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:42,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:30:42,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:42,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:30:42,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:42,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:42,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:42,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:42,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:42,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:42,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:42,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:42,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:42,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:42,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:42,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:42,915 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:30:42,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:30:42,920 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:30:42,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:42,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:30:42,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072195790] [2021-03-25 09:30:42,922 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:30:42,922 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:30:42,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634379022] [2021-03-25 09:30:42,923 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:30:42,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:30:42,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:30:42,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:30:42,924 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 93 [2021-03-25 09:30:42,924 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 81 transitions, 405 flow. Second operand has 9 states, 9 states have (on average 49.333333333333336) internal successors, (444), 9 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:42,924 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:30:42,924 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 93 [2021-03-25 09:30:42,925 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:30:43,084 INFO L129 PetriNetUnfolder]: 248/490 cut-off events. [2021-03-25 09:30:43,085 INFO L130 PetriNetUnfolder]: For 477/513 co-relation queries the response was YES. [2021-03-25 09:30:43,086 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1563 conditions, 490 events. 248/490 cut-off events. For 477/513 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2283 event pairs, 27 based on Foata normal form. 19/459 useless extension candidates. Maximal degree in co-relation 1536. Up to 290 conditions per place. [2021-03-25 09:30:43,088 INFO L132 encePairwiseOnDemand]: 78/93 looper letters, 42 selfloop transitions, 44 changer transitions 0/105 dead transitions. [2021-03-25 09:30:43,089 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 105 transitions, 717 flow [2021-03-25 09:30:43,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 09:30:43,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 09:30:43,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 493 transitions. [2021-03-25 09:30:43,090 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5890083632019116 [2021-03-25 09:30:43,090 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 493 transitions. [2021-03-25 09:30:43,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 493 transitions. [2021-03-25 09:30:43,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:30:43,090 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 493 transitions. [2021-03-25 09:30:43,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 54.77777777777778) internal successors, (493), 9 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:43,092 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 93.0) internal successors, (930), 10 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:43,092 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 93.0) internal successors, (930), 10 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:43,092 INFO L185 Difference]: Start difference. First operand has 59 places, 81 transitions, 405 flow. Second operand 9 states and 493 transitions. [2021-03-25 09:30:43,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 105 transitions, 717 flow [2021-03-25 09:30:43,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 105 transitions, 701 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-03-25 09:30:43,096 INFO L241 Difference]: Finished difference. Result has 69 places, 94 transitions, 628 flow [2021-03-25 09:30:43,096 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=391, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=628, PETRI_PLACES=69, PETRI_TRANSITIONS=94} [2021-03-25 09:30:43,096 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 8 predicate places. [2021-03-25 09:30:43,096 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:30:43,096 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 94 transitions, 628 flow [2021-03-25 09:30:43,097 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 94 transitions, 628 flow [2021-03-25 09:30:43,097 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 94 transitions, 628 flow [2021-03-25 09:30:43,113 INFO L129 PetriNetUnfolder]: 149/336 cut-off events. [2021-03-25 09:30:43,113 INFO L130 PetriNetUnfolder]: For 255/257 co-relation queries the response was YES. [2021-03-25 09:30:43,114 INFO L84 FinitePrefix]: Finished finitePrefix Result has 976 conditions, 336 events. 149/336 cut-off events. For 255/257 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1585 event pairs, 15 based on Foata normal form. 0/296 useless extension candidates. Maximal degree in co-relation 947. Up to 173 conditions per place. [2021-03-25 09:30:43,116 INFO L142 LiptonReduction]: Number of co-enabled transitions 730 [2021-03-25 09:30:43,143 INFO L154 LiptonReduction]: Checked pairs total: 14 [2021-03-25 09:30:43,144 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:30:43,144 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 48 [2021-03-25 09:30:43,144 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 94 transitions, 629 flow [2021-03-25 09:30:43,144 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 49.333333333333336) internal successors, (444), 9 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:43,144 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:30:43,144 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:30:43,145 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 09:30:43,145 INFO L428 AbstractCegarLoop]: === Iteration 7 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:30:43,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:30:43,145 INFO L82 PathProgramCache]: Analyzing trace with hash -1385669975, now seen corresponding path program 1 times [2021-03-25 09:30:43,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:30:43,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253952531] [2021-03-25 09:30:43,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:30:43,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:30:43,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:43,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:30:43,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:43,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:30:43,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:43,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:43,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:43,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:43,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:43,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:43,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:43,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:43,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:43,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:43,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:43,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:43,232 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:30:43,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:30:43,244 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:30:43,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:43,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:30:43,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253952531] [2021-03-25 09:30:43,247 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:30:43,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:30:43,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782831370] [2021-03-25 09:30:43,247 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:30:43,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:30:43,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:30:43,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:30:43,248 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 94 [2021-03-25 09:30:43,249 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 94 transitions, 629 flow. Second operand has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:43,249 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:30:43,249 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 94 [2021-03-25 09:30:43,249 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:30:43,451 INFO L129 PetriNetUnfolder]: 251/495 cut-off events. [2021-03-25 09:30:43,451 INFO L130 PetriNetUnfolder]: For 673/685 co-relation queries the response was YES. [2021-03-25 09:30:43,453 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1785 conditions, 495 events. 251/495 cut-off events. For 673/685 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2295 event pairs, 28 based on Foata normal form. 9/458 useless extension candidates. Maximal degree in co-relation 1753. Up to 270 conditions per place. [2021-03-25 09:30:43,455 INFO L132 encePairwiseOnDemand]: 78/94 looper letters, 29 selfloop transitions, 46 changer transitions 13/107 dead transitions. [2021-03-25 09:30:43,455 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 107 transitions, 881 flow [2021-03-25 09:30:43,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:30:43,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:30:43,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 546 transitions. [2021-03-25 09:30:43,457 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5808510638297872 [2021-03-25 09:30:43,457 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 546 transitions. [2021-03-25 09:30:43,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 546 transitions. [2021-03-25 09:30:43,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:30:43,457 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 546 transitions. [2021-03-25 09:30:43,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 54.6) internal successors, (546), 10 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:43,459 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 94.0) internal successors, (1034), 11 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:43,459 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 94.0) internal successors, (1034), 11 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:43,459 INFO L185 Difference]: Start difference. First operand has 69 places, 94 transitions, 629 flow. Second operand 10 states and 546 transitions. [2021-03-25 09:30:43,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 107 transitions, 881 flow [2021-03-25 09:30:43,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 107 transitions, 861 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-03-25 09:30:43,464 INFO L241 Difference]: Finished difference. Result has 77 places, 83 transitions, 642 flow [2021-03-25 09:30:43,464 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=609, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=642, PETRI_PLACES=77, PETRI_TRANSITIONS=83} [2021-03-25 09:30:43,464 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 16 predicate places. [2021-03-25 09:30:43,465 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:30:43,465 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 83 transitions, 642 flow [2021-03-25 09:30:43,465 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 83 transitions, 642 flow [2021-03-25 09:30:43,465 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 83 transitions, 642 flow [2021-03-25 09:30:43,479 INFO L129 PetriNetUnfolder]: 148/319 cut-off events. [2021-03-25 09:30:43,479 INFO L130 PetriNetUnfolder]: For 354/356 co-relation queries the response was YES. [2021-03-25 09:30:43,480 INFO L84 FinitePrefix]: Finished finitePrefix Result has 993 conditions, 319 events. 148/319 cut-off events. For 354/356 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1401 event pairs, 23 based on Foata normal form. 0/275 useless extension candidates. Maximal degree in co-relation 969. Up to 164 conditions per place. [2021-03-25 09:30:43,482 INFO L142 LiptonReduction]: Number of co-enabled transitions 580 [2021-03-25 09:30:43,485 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:30:43,485 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:30:43,485 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-03-25 09:30:43,485 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 83 transitions, 642 flow [2021-03-25 09:30:43,486 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:43,486 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:30:43,486 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:30:43,486 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 09:30:43,486 INFO L428 AbstractCegarLoop]: === Iteration 8 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:30:43,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:30:43,486 INFO L82 PathProgramCache]: Analyzing trace with hash -158038625, now seen corresponding path program 1 times [2021-03-25 09:30:43,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:30:43,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079608121] [2021-03-25 09:30:43,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:30:43,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:30:43,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:43,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:30:43,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:43,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:30:43,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:43,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:43,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:43,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:43,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:43,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:43,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:43,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:43,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:43,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:43,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:43,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:43,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:43,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:43,607 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:30:43,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:30:43,621 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:30:43,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:43,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:30:43,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079608121] [2021-03-25 09:30:43,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:30:43,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:30:43,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129246068] [2021-03-25 09:30:43,624 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:30:43,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:30:43,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:30:43,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:30:43,626 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 94 [2021-03-25 09:30:43,626 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 83 transitions, 642 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:43,626 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:30:43,626 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 94 [2021-03-25 09:30:43,626 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:30:43,935 INFO L129 PetriNetUnfolder]: 257/509 cut-off events. [2021-03-25 09:30:43,938 INFO L130 PetriNetUnfolder]: For 875/897 co-relation queries the response was YES. [2021-03-25 09:30:43,941 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1932 conditions, 509 events. 257/509 cut-off events. For 875/897 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2428 event pairs, 31 based on Foata normal form. 13/471 useless extension candidates. Maximal degree in co-relation 1906. Up to 264 conditions per place. [2021-03-25 09:30:43,944 INFO L132 encePairwiseOnDemand]: 77/94 looper letters, 29 selfloop transitions, 69 changer transitions 0/117 dead transitions. [2021-03-25 09:30:43,944 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 117 transitions, 1083 flow [2021-03-25 09:30:43,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:30:43,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:30:43,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 703 transitions. [2021-03-25 09:30:43,946 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5752864157119476 [2021-03-25 09:30:43,946 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 703 transitions. [2021-03-25 09:30:43,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 703 transitions. [2021-03-25 09:30:43,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:30:43,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 703 transitions. [2021-03-25 09:30:43,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 54.07692307692308) internal successors, (703), 13 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:43,949 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 94.0) internal successors, (1316), 14 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:43,949 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 94.0) internal successors, (1316), 14 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:43,949 INFO L185 Difference]: Start difference. First operand has 71 places, 83 transitions, 642 flow. Second operand 13 states and 703 transitions. [2021-03-25 09:30:43,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 117 transitions, 1083 flow [2021-03-25 09:30:43,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 117 transitions, 895 flow, removed 17 selfloop flow, removed 12 redundant places. [2021-03-25 09:30:43,955 INFO L241 Difference]: Finished difference. Result has 73 places, 102 transitions, 796 flow [2021-03-25 09:30:43,955 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=491, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=796, PETRI_PLACES=73, PETRI_TRANSITIONS=102} [2021-03-25 09:30:43,956 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 12 predicate places. [2021-03-25 09:30:43,956 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:30:43,956 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 102 transitions, 796 flow [2021-03-25 09:30:43,956 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 102 transitions, 796 flow [2021-03-25 09:30:43,957 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 73 places, 102 transitions, 796 flow [2021-03-25 09:30:43,975 INFO L129 PetriNetUnfolder]: 176/381 cut-off events. [2021-03-25 09:30:43,975 INFO L130 PetriNetUnfolder]: For 328/330 co-relation queries the response was YES. [2021-03-25 09:30:43,976 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1194 conditions, 381 events. 176/381 cut-off events. For 328/330 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1839 event pairs, 21 based on Foata normal form. 0/337 useless extension candidates. Maximal degree in co-relation 1159. Up to 188 conditions per place. [2021-03-25 09:30:43,978 INFO L142 LiptonReduction]: Number of co-enabled transitions 720 [2021-03-25 09:30:44,012 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-25 09:30:44,012 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:30:44,012 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 56 [2021-03-25 09:30:44,013 INFO L480 AbstractCegarLoop]: Abstraction has has 73 places, 102 transitions, 801 flow [2021-03-25 09:30:44,013 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:44,013 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:30:44,013 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:30:44,013 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 09:30:44,013 INFO L428 AbstractCegarLoop]: === Iteration 9 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:30:44,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:30:44,014 INFO L82 PathProgramCache]: Analyzing trace with hash -222228189, now seen corresponding path program 2 times [2021-03-25 09:30:44,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:30:44,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351665514] [2021-03-25 09:30:44,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:30:44,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:30:44,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:44,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:30:44,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:44,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:30:44,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:44,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:44,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:44,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:44,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:44,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:44,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:44,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:44,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:44,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:44,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:44,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:44,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:44,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:44,132 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:30:44,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:30:44,142 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:30:44,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:44,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:30:44,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351665514] [2021-03-25 09:30:44,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:30:44,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:30:44,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135743846] [2021-03-25 09:30:44,147 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:30:44,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:30:44,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:30:44,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:30:44,149 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 95 [2021-03-25 09:30:44,149 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 102 transitions, 801 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:44,149 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:30:44,149 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 95 [2021-03-25 09:30:44,149 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:30:44,387 INFO L129 PetriNetUnfolder]: 286/586 cut-off events. [2021-03-25 09:30:44,387 INFO L130 PetriNetUnfolder]: For 787/799 co-relation queries the response was YES. [2021-03-25 09:30:44,389 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2126 conditions, 586 events. 286/586 cut-off events. For 787/799 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2947 event pairs, 31 based on Foata normal form. 9/527 useless extension candidates. Maximal degree in co-relation 2077. Up to 305 conditions per place. [2021-03-25 09:30:44,392 INFO L132 encePairwiseOnDemand]: 78/95 looper letters, 52 selfloop transitions, 62 changer transitions 0/133 dead transitions. [2021-03-25 09:30:44,392 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 133 transitions, 1263 flow [2021-03-25 09:30:44,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:30:44,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:30:44,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 599 transitions. [2021-03-25 09:30:44,393 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5732057416267943 [2021-03-25 09:30:44,394 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 599 transitions. [2021-03-25 09:30:44,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 599 transitions. [2021-03-25 09:30:44,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:30:44,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 599 transitions. [2021-03-25 09:30:44,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 54.45454545454545) internal successors, (599), 11 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:44,396 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 95.0) internal successors, (1140), 12 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:44,396 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 95.0) internal successors, (1140), 12 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:44,397 INFO L185 Difference]: Start difference. First operand has 73 places, 102 transitions, 801 flow. Second operand 11 states and 599 transitions. [2021-03-25 09:30:44,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 133 transitions, 1263 flow [2021-03-25 09:30:44,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 133 transitions, 1214 flow, removed 10 selfloop flow, removed 2 redundant places. [2021-03-25 09:30:44,405 INFO L241 Difference]: Finished difference. Result has 85 places, 122 transitions, 1135 flow [2021-03-25 09:30:44,405 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=759, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1135, PETRI_PLACES=85, PETRI_TRANSITIONS=122} [2021-03-25 09:30:44,405 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 24 predicate places. [2021-03-25 09:30:44,405 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:30:44,405 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 122 transitions, 1135 flow [2021-03-25 09:30:44,406 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 122 transitions, 1135 flow [2021-03-25 09:30:44,406 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 122 transitions, 1135 flow [2021-03-25 09:30:44,426 INFO L129 PetriNetUnfolder]: 192/427 cut-off events. [2021-03-25 09:30:44,426 INFO L130 PetriNetUnfolder]: For 586/588 co-relation queries the response was YES. [2021-03-25 09:30:44,427 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1556 conditions, 427 events. 192/427 cut-off events. For 586/588 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2129 event pairs, 29 based on Foata normal form. 0/373 useless extension candidates. Maximal degree in co-relation 1512. Up to 201 conditions per place. [2021-03-25 09:30:44,430 INFO L142 LiptonReduction]: Number of co-enabled transitions 846 [2021-03-25 09:30:44,477 INFO L154 LiptonReduction]: Checked pairs total: 8 [2021-03-25 09:30:44,477 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 09:30:44,477 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 72 [2021-03-25 09:30:44,478 INFO L480 AbstractCegarLoop]: Abstraction has has 85 places, 122 transitions, 1139 flow [2021-03-25 09:30:44,478 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:44,478 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:30:44,478 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:30:44,478 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 09:30:44,478 INFO L428 AbstractCegarLoop]: === Iteration 10 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:30:44,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:30:44,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1044659324, now seen corresponding path program 1 times [2021-03-25 09:30:44,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:30:44,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202031082] [2021-03-25 09:30:44,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:30:44,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:30:44,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:44,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:30:44,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:44,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:30:44,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:44,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:44,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:44,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:44,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:44,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:44,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:44,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:44,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:44,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:44,580 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:30:44,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:30:44,592 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:30:44,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:30:44,606 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:30:44,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:44,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:30:44,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202031082] [2021-03-25 09:30:44,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:30:44,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:30:44,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127145847] [2021-03-25 09:30:44,609 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:30:44,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:30:44,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:30:44,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:30:44,610 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 97 [2021-03-25 09:30:44,611 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 122 transitions, 1139 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:44,611 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:30:44,611 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 97 [2021-03-25 09:30:44,611 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:30:44,902 INFO L129 PetriNetUnfolder]: 304/625 cut-off events. [2021-03-25 09:30:44,902 INFO L130 PetriNetUnfolder]: For 1156/1182 co-relation queries the response was YES. [2021-03-25 09:30:44,904 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2590 conditions, 625 events. 304/625 cut-off events. For 1156/1182 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3242 event pairs, 17 based on Foata normal form. 15/571 useless extension candidates. Maximal degree in co-relation 2530. Up to 353 conditions per place. [2021-03-25 09:30:44,907 INFO L132 encePairwiseOnDemand]: 77/97 looper letters, 90 selfloop transitions, 53 changer transitions 1/163 dead transitions. [2021-03-25 09:30:44,907 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 163 transitions, 1760 flow [2021-03-25 09:30:44,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:30:44,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:30:44,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 693 transitions. [2021-03-25 09:30:44,908 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5495638382236321 [2021-03-25 09:30:44,908 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 693 transitions. [2021-03-25 09:30:44,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 693 transitions. [2021-03-25 09:30:44,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:30:44,909 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 693 transitions. [2021-03-25 09:30:44,910 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 53.30769230769231) internal successors, (693), 13 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:44,911 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 97.0) internal successors, (1358), 14 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:44,911 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 97.0) internal successors, (1358), 14 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:44,911 INFO L185 Difference]: Start difference. First operand has 85 places, 122 transitions, 1139 flow. Second operand 13 states and 693 transitions. [2021-03-25 09:30:44,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 163 transitions, 1760 flow [2021-03-25 09:30:44,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 163 transitions, 1732 flow, removed 11 selfloop flow, removed 1 redundant places. [2021-03-25 09:30:44,919 INFO L241 Difference]: Finished difference. Result has 102 places, 148 transitions, 1562 flow [2021-03-25 09:30:44,920 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=1111, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1562, PETRI_PLACES=102, PETRI_TRANSITIONS=148} [2021-03-25 09:30:44,920 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 41 predicate places. [2021-03-25 09:30:44,920 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:30:44,920 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 148 transitions, 1562 flow [2021-03-25 09:30:44,920 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 148 transitions, 1562 flow [2021-03-25 09:30:44,921 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 101 places, 148 transitions, 1562 flow [2021-03-25 09:30:44,946 INFO L129 PetriNetUnfolder]: 228/507 cut-off events. [2021-03-25 09:30:44,946 INFO L130 PetriNetUnfolder]: For 1148/1155 co-relation queries the response was YES. [2021-03-25 09:30:44,947 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2120 conditions, 507 events. 228/507 cut-off events. For 1148/1155 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2664 event pairs, 17 based on Foata normal form. 6/447 useless extension candidates. Maximal degree in co-relation 2084. Up to 225 conditions per place. [2021-03-25 09:30:44,950 INFO L142 LiptonReduction]: Number of co-enabled transitions 924 [2021-03-25 09:30:44,977 INFO L154 LiptonReduction]: Checked pairs total: 32 [2021-03-25 09:30:44,977 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 09:30:44,977 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 57 [2021-03-25 09:30:44,979 INFO L480 AbstractCegarLoop]: Abstraction has has 100 places, 147 transitions, 1561 flow [2021-03-25 09:30:44,980 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:44,980 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:30:44,980 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:30:44,980 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-25 09:30:44,980 INFO L428 AbstractCegarLoop]: === Iteration 11 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:30:44,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:30:44,980 INFO L82 PathProgramCache]: Analyzing trace with hash 286388286, now seen corresponding path program 2 times [2021-03-25 09:30:44,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:30:44,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975268035] [2021-03-25 09:30:44,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:30:44,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:30:45,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:45,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:30:45,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:45,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:30:45,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:45,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:45,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:45,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:45,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:45,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:45,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:45,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:45,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:45,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:45,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:45,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:45,070 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:30:45,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:30:45,083 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:30:45,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:45,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:30:45,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975268035] [2021-03-25 09:30:45,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:30:45,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:30:45,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122204480] [2021-03-25 09:30:45,086 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:30:45,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:30:45,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:30:45,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:30:45,086 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 99 [2021-03-25 09:30:45,087 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 147 transitions, 1561 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:45,087 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:30:45,087 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 99 [2021-03-25 09:30:45,087 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:30:45,382 INFO L129 PetriNetUnfolder]: 302/625 cut-off events. [2021-03-25 09:30:45,382 INFO L130 PetriNetUnfolder]: For 1532/1558 co-relation queries the response was YES. [2021-03-25 09:30:45,384 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2906 conditions, 625 events. 302/625 cut-off events. For 1532/1558 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3258 event pairs, 24 based on Foata normal form. 15/565 useless extension candidates. Maximal degree in co-relation 2867. Up to 335 conditions per place. [2021-03-25 09:30:45,387 INFO L132 encePairwiseOnDemand]: 80/99 looper letters, 84 selfloop transitions, 64 changer transitions 0/166 dead transitions. [2021-03-25 09:30:45,387 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 166 transitions, 2006 flow [2021-03-25 09:30:45,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:30:45,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:30:45,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 699 transitions. [2021-03-25 09:30:45,388 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5431235431235432 [2021-03-25 09:30:45,388 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 699 transitions. [2021-03-25 09:30:45,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 699 transitions. [2021-03-25 09:30:45,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:30:45,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 699 transitions. [2021-03-25 09:30:45,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 53.76923076923077) internal successors, (699), 13 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:45,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 99.0) internal successors, (1386), 14 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:45,392 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 99.0) internal successors, (1386), 14 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:45,392 INFO L185 Difference]: Start difference. First operand has 100 places, 147 transitions, 1561 flow. Second operand 13 states and 699 transitions. [2021-03-25 09:30:45,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 166 transitions, 2006 flow [2021-03-25 09:30:45,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 166 transitions, 1941 flow, removed 28 selfloop flow, removed 3 redundant places. [2021-03-25 09:30:45,403 INFO L241 Difference]: Finished difference. Result has 112 places, 153 transitions, 1739 flow [2021-03-25 09:30:45,403 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=1496, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1739, PETRI_PLACES=112, PETRI_TRANSITIONS=153} [2021-03-25 09:30:45,403 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 51 predicate places. [2021-03-25 09:30:45,403 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:30:45,403 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 112 places, 153 transitions, 1739 flow [2021-03-25 09:30:45,403 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 112 places, 153 transitions, 1739 flow [2021-03-25 09:30:45,404 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 112 places, 153 transitions, 1739 flow [2021-03-25 09:30:45,428 INFO L129 PetriNetUnfolder]: 218/468 cut-off events. [2021-03-25 09:30:45,428 INFO L130 PetriNetUnfolder]: For 1267/1273 co-relation queries the response was YES. [2021-03-25 09:30:45,429 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2156 conditions, 468 events. 218/468 cut-off events. For 1267/1273 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2375 event pairs, 21 based on Foata normal form. 4/417 useless extension candidates. Maximal degree in co-relation 2093. Up to 222 conditions per place. [2021-03-25 09:30:45,432 INFO L142 LiptonReduction]: Number of co-enabled transitions 958 [2021-03-25 09:30:45,438 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:30:45,438 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:30:45,438 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 35 [2021-03-25 09:30:45,438 INFO L480 AbstractCegarLoop]: Abstraction has has 112 places, 153 transitions, 1739 flow [2021-03-25 09:30:45,438 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:45,439 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:30:45,439 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:30:45,439 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-25 09:30:45,439 INFO L428 AbstractCegarLoop]: === Iteration 12 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:30:45,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:30:45,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1313082170, now seen corresponding path program 1 times [2021-03-25 09:30:45,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:30:45,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912484613] [2021-03-25 09:30:45,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:30:45,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:30:45,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:45,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:30:45,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:45,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:30:45,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:45,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:45,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:45,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:45,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:45,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:45,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:45,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:45,513 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 09:30:45,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:30:45,515 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:30:45,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:30:45,528 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:30:45,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:30:45,540 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:30:45,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:45,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:30:45,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912484613] [2021-03-25 09:30:45,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:30:45,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:30:45,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5505802] [2021-03-25 09:30:45,542 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:30:45,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:30:45,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:30:45,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:30:45,543 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 99 [2021-03-25 09:30:45,543 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 153 transitions, 1739 flow. Second operand has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:45,543 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:30:45,544 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 99 [2021-03-25 09:30:45,544 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:30:45,738 INFO L129 PetriNetUnfolder]: 312/645 cut-off events. [2021-03-25 09:30:45,738 INFO L130 PetriNetUnfolder]: For 1818/1847 co-relation queries the response was YES. [2021-03-25 09:30:45,741 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3175 conditions, 645 events. 312/645 cut-off events. For 1818/1847 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3417 event pairs, 15 based on Foata normal form. 15/583 useless extension candidates. Maximal degree in co-relation 3100. Up to 377 conditions per place. [2021-03-25 09:30:45,744 INFO L132 encePairwiseOnDemand]: 82/99 looper letters, 125 selfloop transitions, 37 changer transitions 3/183 dead transitions. [2021-03-25 09:30:45,744 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 183 transitions, 2339 flow [2021-03-25 09:30:45,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:30:45,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:30:45,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 588 transitions. [2021-03-25 09:30:45,746 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5399449035812672 [2021-03-25 09:30:45,746 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 588 transitions. [2021-03-25 09:30:45,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 588 transitions. [2021-03-25 09:30:45,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:30:45,747 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 588 transitions. [2021-03-25 09:30:45,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 53.45454545454545) internal successors, (588), 11 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:45,750 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 99.0) internal successors, (1188), 12 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:45,750 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 99.0) internal successors, (1188), 12 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:45,750 INFO L185 Difference]: Start difference. First operand has 112 places, 153 transitions, 1739 flow. Second operand 11 states and 588 transitions. [2021-03-25 09:30:45,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 183 transitions, 2339 flow [2021-03-25 09:30:45,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 183 transitions, 2253 flow, removed 6 selfloop flow, removed 8 redundant places. [2021-03-25 09:30:45,765 INFO L241 Difference]: Finished difference. Result has 119 places, 169 transitions, 1954 flow [2021-03-25 09:30:45,765 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=1653, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1954, PETRI_PLACES=119, PETRI_TRANSITIONS=169} [2021-03-25 09:30:45,765 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 58 predicate places. [2021-03-25 09:30:45,765 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:30:45,765 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 169 transitions, 1954 flow [2021-03-25 09:30:45,766 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 119 places, 169 transitions, 1954 flow [2021-03-25 09:30:45,767 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 117 places, 169 transitions, 1954 flow [2021-03-25 09:30:45,794 INFO L129 PetriNetUnfolder]: 233/504 cut-off events. [2021-03-25 09:30:45,794 INFO L130 PetriNetUnfolder]: For 1730/1733 co-relation queries the response was YES. [2021-03-25 09:30:45,795 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2458 conditions, 504 events. 233/504 cut-off events. For 1730/1733 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2624 event pairs, 14 based on Foata normal form. 0/439 useless extension candidates. Maximal degree in co-relation 2412. Up to 237 conditions per place. [2021-03-25 09:30:45,799 INFO L142 LiptonReduction]: Number of co-enabled transitions 974 [2021-03-25 09:30:45,804 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:30:45,804 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:30:45,804 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 39 [2021-03-25 09:30:45,806 INFO L480 AbstractCegarLoop]: Abstraction has has 117 places, 169 transitions, 1954 flow [2021-03-25 09:30:45,806 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:45,806 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:30:45,806 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:30:45,806 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-25 09:30:45,806 INFO L428 AbstractCegarLoop]: === Iteration 13 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:30:45,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:30:45,806 INFO L82 PathProgramCache]: Analyzing trace with hash 1593546710, now seen corresponding path program 3 times [2021-03-25 09:30:45,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:30:45,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175957266] [2021-03-25 09:30:45,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:30:45,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:30:45,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:45,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:30:45,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:45,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:30:45,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:45,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:45,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:45,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:45,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:45,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:45,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:45,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:45,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:45,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:45,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:45,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:45,902 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:30:45,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:30:45,916 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:30:45,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:45,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:30:45,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175957266] [2021-03-25 09:30:45,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:30:45,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:30:45,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220817775] [2021-03-25 09:30:45,921 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:30:45,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:30:45,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:30:45,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:30:45,922 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 99 [2021-03-25 09:30:45,922 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 169 transitions, 1954 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:45,922 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:30:45,922 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 99 [2021-03-25 09:30:45,922 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:30:46,267 INFO L129 PetriNetUnfolder]: 320/663 cut-off events. [2021-03-25 09:30:46,267 INFO L130 PetriNetUnfolder]: For 2335/2361 co-relation queries the response was YES. [2021-03-25 09:30:46,270 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3482 conditions, 663 events. 320/663 cut-off events. For 2335/2361 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3515 event pairs, 18 based on Foata normal form. 15/598 useless extension candidates. Maximal degree in co-relation 3433. Up to 355 conditions per place. [2021-03-25 09:30:46,273 INFO L132 encePairwiseOnDemand]: 80/99 looper letters, 102 selfloop transitions, 84 changer transitions 0/204 dead transitions. [2021-03-25 09:30:46,273 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 204 transitions, 2731 flow [2021-03-25 09:30:46,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 09:30:46,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 09:30:46,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 810 transitions. [2021-03-25 09:30:46,276 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5454545454545454 [2021-03-25 09:30:46,276 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 810 transitions. [2021-03-25 09:30:46,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 810 transitions. [2021-03-25 09:30:46,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:30:46,277 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 810 transitions. [2021-03-25 09:30:46,278 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 54.0) internal successors, (810), 15 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:46,280 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 99.0) internal successors, (1584), 16 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:46,280 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 99.0) internal successors, (1584), 16 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:46,280 INFO L185 Difference]: Start difference. First operand has 117 places, 169 transitions, 1954 flow. Second operand 15 states and 810 transitions. [2021-03-25 09:30:46,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 204 transitions, 2731 flow [2021-03-25 09:30:46,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 204 transitions, 2627 flow, removed 45 selfloop flow, removed 3 redundant places. [2021-03-25 09:30:46,297 INFO L241 Difference]: Finished difference. Result has 132 places, 191 transitions, 2422 flow [2021-03-25 09:30:46,297 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=1850, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2422, PETRI_PLACES=132, PETRI_TRANSITIONS=191} [2021-03-25 09:30:46,297 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 71 predicate places. [2021-03-25 09:30:46,297 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:30:46,297 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 132 places, 191 transitions, 2422 flow [2021-03-25 09:30:46,297 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 132 places, 191 transitions, 2422 flow [2021-03-25 09:30:46,298 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 132 places, 191 transitions, 2422 flow [2021-03-25 09:30:46,329 INFO L129 PetriNetUnfolder]: 266/568 cut-off events. [2021-03-25 09:30:46,330 INFO L130 PetriNetUnfolder]: For 2535/2543 co-relation queries the response was YES. [2021-03-25 09:30:46,332 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2893 conditions, 568 events. 266/568 cut-off events. For 2535/2543 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 3011 event pairs, 20 based on Foata normal form. 0/493 useless extension candidates. Maximal degree in co-relation 2810. Up to 241 conditions per place. [2021-03-25 09:30:46,335 INFO L142 LiptonReduction]: Number of co-enabled transitions 1094 [2021-03-25 09:30:46,342 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:30:46,342 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:30:46,342 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 45 [2021-03-25 09:30:46,342 INFO L480 AbstractCegarLoop]: Abstraction has has 132 places, 191 transitions, 2422 flow [2021-03-25 09:30:46,342 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:46,342 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:30:46,342 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:30:46,342 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-25 09:30:46,343 INFO L428 AbstractCegarLoop]: === Iteration 14 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:30:46,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:30:46,343 INFO L82 PathProgramCache]: Analyzing trace with hash -479375882, now seen corresponding path program 4 times [2021-03-25 09:30:46,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:30:46,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243866898] [2021-03-25 09:30:46,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:30:46,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:30:46,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:46,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:30:46,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:46,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:30:46,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:46,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:46,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:46,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:46,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:46,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:46,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:46,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:46,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:46,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:46,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:46,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:46,444 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:30:46,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:30:46,458 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:30:46,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:46,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:30:46,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243866898] [2021-03-25 09:30:46,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:30:46,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:30:46,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031250414] [2021-03-25 09:30:46,461 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:30:46,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:30:46,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:30:46,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:30:46,462 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 99 [2021-03-25 09:30:46,462 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 191 transitions, 2422 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:46,462 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:30:46,462 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 99 [2021-03-25 09:30:46,462 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:30:46,761 INFO L129 PetriNetUnfolder]: 326/684 cut-off events. [2021-03-25 09:30:46,761 INFO L130 PetriNetUnfolder]: For 2796/2804 co-relation queries the response was YES. [2021-03-25 09:30:46,764 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3755 conditions, 684 events. 326/684 cut-off events. For 2796/2804 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 3692 event pairs, 18 based on Foata normal form. 9/610 useless extension candidates. Maximal degree in co-relation 3665. Up to 374 conditions per place. [2021-03-25 09:30:46,767 INFO L132 encePairwiseOnDemand]: 79/99 looper letters, 118 selfloop transitions, 78 changer transitions 0/214 dead transitions. [2021-03-25 09:30:46,767 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 214 transitions, 3000 flow [2021-03-25 09:30:46,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:30:46,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:30:46,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 700 transitions. [2021-03-25 09:30:46,769 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5439005439005439 [2021-03-25 09:30:46,769 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 700 transitions. [2021-03-25 09:30:46,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 700 transitions. [2021-03-25 09:30:46,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:30:46,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 700 transitions. [2021-03-25 09:30:46,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 53.84615384615385) internal successors, (700), 13 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:46,772 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 99.0) internal successors, (1386), 14 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:46,773 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 99.0) internal successors, (1386), 14 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:46,773 INFO L185 Difference]: Start difference. First operand has 132 places, 191 transitions, 2422 flow. Second operand 13 states and 700 transitions. [2021-03-25 09:30:46,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 214 transitions, 3000 flow [2021-03-25 09:30:46,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 214 transitions, 2859 flow, removed 38 selfloop flow, removed 7 redundant places. [2021-03-25 09:30:46,791 INFO L241 Difference]: Finished difference. Result has 140 places, 201 transitions, 2634 flow [2021-03-25 09:30:46,791 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=2281, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2634, PETRI_PLACES=140, PETRI_TRANSITIONS=201} [2021-03-25 09:30:46,791 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 79 predicate places. [2021-03-25 09:30:46,791 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:30:46,791 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 140 places, 201 transitions, 2634 flow [2021-03-25 09:30:46,791 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 140 places, 201 transitions, 2634 flow [2021-03-25 09:30:46,793 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 140 places, 201 transitions, 2634 flow [2021-03-25 09:30:46,826 INFO L129 PetriNetUnfolder]: 258/568 cut-off events. [2021-03-25 09:30:46,826 INFO L130 PetriNetUnfolder]: For 2561/2564 co-relation queries the response was YES. [2021-03-25 09:30:46,829 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2965 conditions, 568 events. 258/568 cut-off events. For 2561/2564 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 3111 event pairs, 11 based on Foata normal form. 0/490 useless extension candidates. Maximal degree in co-relation 2878. Up to 232 conditions per place. [2021-03-25 09:30:46,854 INFO L142 LiptonReduction]: Number of co-enabled transitions 1166 [2021-03-25 09:30:46,861 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:30:46,862 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:30:46,862 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 71 [2021-03-25 09:30:46,862 INFO L480 AbstractCegarLoop]: Abstraction has has 140 places, 201 transitions, 2634 flow [2021-03-25 09:30:46,862 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:46,863 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:30:46,863 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:30:46,863 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-25 09:30:46,863 INFO L428 AbstractCegarLoop]: === Iteration 15 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:30:46,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:30:46,863 INFO L82 PathProgramCache]: Analyzing trace with hash 713735606, now seen corresponding path program 1 times [2021-03-25 09:30:46,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:30:46,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130420082] [2021-03-25 09:30:46,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:30:46,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:30:46,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:46,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:30:46,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:46,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:30:46,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:46,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:46,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:46,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:46,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:46,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:46,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:46,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:46,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:46,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:46,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:46,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:46,952 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:30:46,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:30:46,956 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:30:46,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:46,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:30:46,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130420082] [2021-03-25 09:30:46,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:30:46,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:30:46,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095853630] [2021-03-25 09:30:46,965 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:30:46,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:30:46,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:30:46,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:30:46,966 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 99 [2021-03-25 09:30:46,966 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 201 transitions, 2634 flow. Second operand has 9 states, 9 states have (on average 49.333333333333336) internal successors, (444), 9 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:46,966 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:30:46,966 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 99 [2021-03-25 09:30:46,966 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:30:47,205 INFO L129 PetriNetUnfolder]: 333/714 cut-off events. [2021-03-25 09:30:47,205 INFO L130 PetriNetUnfolder]: For 3224/3301 co-relation queries the response was YES. [2021-03-25 09:30:47,210 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3947 conditions, 714 events. 333/714 cut-off events. For 3224/3301 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 3980 event pairs, 17 based on Foata normal form. 24/647 useless extension candidates. Maximal degree in co-relation 3847. Up to 380 conditions per place. [2021-03-25 09:30:47,214 INFO L132 encePairwiseOnDemand]: 82/99 looper letters, 130 selfloop transitions, 71 changer transitions 0/219 dead transitions. [2021-03-25 09:30:47,214 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 219 transitions, 3223 flow [2021-03-25 09:30:47,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 09:30:47,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 09:30:47,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 498 transitions. [2021-03-25 09:30:47,215 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5589225589225589 [2021-03-25 09:30:47,215 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 498 transitions. [2021-03-25 09:30:47,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 498 transitions. [2021-03-25 09:30:47,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:30:47,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 498 transitions. [2021-03-25 09:30:47,216 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 55.333333333333336) internal successors, (498), 9 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:47,216 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:47,217 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:47,217 INFO L185 Difference]: Start difference. First operand has 140 places, 201 transitions, 2634 flow. Second operand 9 states and 498 transitions. [2021-03-25 09:30:47,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 219 transitions, 3223 flow [2021-03-25 09:30:47,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 219 transitions, 3118 flow, removed 5 selfloop flow, removed 9 redundant places. [2021-03-25 09:30:47,237 INFO L241 Difference]: Finished difference. Result has 144 places, 209 transitions, 2908 flow [2021-03-25 09:30:47,237 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=2533, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2908, PETRI_PLACES=144, PETRI_TRANSITIONS=209} [2021-03-25 09:30:47,238 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 83 predicate places. [2021-03-25 09:30:47,238 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:30:47,238 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 144 places, 209 transitions, 2908 flow [2021-03-25 09:30:47,238 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 144 places, 209 transitions, 2908 flow [2021-03-25 09:30:47,239 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 144 places, 209 transitions, 2908 flow [2021-03-25 09:30:47,279 INFO L129 PetriNetUnfolder]: 265/591 cut-off events. [2021-03-25 09:30:47,280 INFO L130 PetriNetUnfolder]: For 3385/3388 co-relation queries the response was YES. [2021-03-25 09:30:47,283 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3223 conditions, 591 events. 265/591 cut-off events. For 3385/3388 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3334 event pairs, 14 based on Foata normal form. 0/507 useless extension candidates. Maximal degree in co-relation 3125. Up to 241 conditions per place. [2021-03-25 09:30:47,287 INFO L142 LiptonReduction]: Number of co-enabled transitions 1270 [2021-03-25 09:30:47,295 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:30:47,295 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:30:47,295 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 57 [2021-03-25 09:30:47,297 INFO L480 AbstractCegarLoop]: Abstraction has has 144 places, 209 transitions, 2908 flow [2021-03-25 09:30:47,298 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 49.333333333333336) internal successors, (444), 9 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:47,298 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:30:47,298 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:30:47,298 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-25 09:30:47,298 INFO L428 AbstractCegarLoop]: === Iteration 16 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:30:47,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:30:47,298 INFO L82 PathProgramCache]: Analyzing trace with hash -2002257722, now seen corresponding path program 2 times [2021-03-25 09:30:47,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:30:47,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466817862] [2021-03-25 09:30:47,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:30:47,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:30:47,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:47,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:30:47,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:47,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:30:47,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:47,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:47,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:47,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:47,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:47,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:47,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:47,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:47,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:47,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:47,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:47,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:47,371 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:30:47,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:30:47,381 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:30:47,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:47,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:30:47,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466817862] [2021-03-25 09:30:47,384 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:30:47,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:30:47,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376288937] [2021-03-25 09:30:47,385 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:30:47,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:30:47,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:30:47,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:30:47,386 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 99 [2021-03-25 09:30:47,386 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 209 transitions, 2908 flow. Second operand has 9 states, 9 states have (on average 49.333333333333336) internal successors, (444), 9 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:47,386 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:30:47,386 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 99 [2021-03-25 09:30:47,386 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:30:47,596 INFO L129 PetriNetUnfolder]: 336/735 cut-off events. [2021-03-25 09:30:47,596 INFO L130 PetriNetUnfolder]: For 3847/3882 co-relation queries the response was YES. [2021-03-25 09:30:47,600 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4174 conditions, 735 events. 336/735 cut-off events. For 3847/3882 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 4195 event pairs, 17 based on Foata normal form. 18/657 useless extension candidates. Maximal degree in co-relation 4063. Up to 379 conditions per place. [2021-03-25 09:30:47,604 INFO L132 encePairwiseOnDemand]: 81/99 looper letters, 128 selfloop transitions, 79 changer transitions 0/225 dead transitions. [2021-03-25 09:30:47,604 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 225 transitions, 3467 flow [2021-03-25 09:30:47,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 09:30:47,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 09:30:47,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 500 transitions. [2021-03-25 09:30:47,605 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5611672278338945 [2021-03-25 09:30:47,605 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 500 transitions. [2021-03-25 09:30:47,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 500 transitions. [2021-03-25 09:30:47,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:30:47,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 500 transitions. [2021-03-25 09:30:47,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 55.55555555555556) internal successors, (500), 9 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:47,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:47,610 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:47,610 INFO L185 Difference]: Start difference. First operand has 144 places, 209 transitions, 2908 flow. Second operand 9 states and 500 transitions. [2021-03-25 09:30:47,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 225 transitions, 3467 flow [2021-03-25 09:30:47,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 225 transitions, 3424 flow, removed 6 selfloop flow, removed 3 redundant places. [2021-03-25 09:30:47,640 INFO L241 Difference]: Finished difference. Result has 152 places, 212 transitions, 3168 flow [2021-03-25 09:30:47,640 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=2868, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3168, PETRI_PLACES=152, PETRI_TRANSITIONS=212} [2021-03-25 09:30:47,641 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 91 predicate places. [2021-03-25 09:30:47,641 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:30:47,641 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 152 places, 212 transitions, 3168 flow [2021-03-25 09:30:47,641 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 152 places, 212 transitions, 3168 flow [2021-03-25 09:30:47,642 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 152 places, 212 transitions, 3168 flow [2021-03-25 09:30:47,683 INFO L129 PetriNetUnfolder]: 267/614 cut-off events. [2021-03-25 09:30:47,683 INFO L130 PetriNetUnfolder]: For 3892/3897 co-relation queries the response was YES. [2021-03-25 09:30:47,709 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3426 conditions, 614 events. 267/614 cut-off events. For 3892/3897 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 3557 event pairs, 10 based on Foata normal form. 1/526 useless extension candidates. Maximal degree in co-relation 3319. Up to 240 conditions per place. [2021-03-25 09:30:47,714 INFO L142 LiptonReduction]: Number of co-enabled transitions 1314 [2021-03-25 09:30:47,722 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:30:47,722 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:30:47,722 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 81 [2021-03-25 09:30:47,723 INFO L480 AbstractCegarLoop]: Abstraction has has 152 places, 212 transitions, 3168 flow [2021-03-25 09:30:47,723 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 49.333333333333336) internal successors, (444), 9 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:47,723 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:30:47,723 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:30:47,723 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-25 09:30:47,723 INFO L428 AbstractCegarLoop]: === Iteration 17 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:30:47,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:30:47,723 INFO L82 PathProgramCache]: Analyzing trace with hash -388202640, now seen corresponding path program 3 times [2021-03-25 09:30:47,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:30:47,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971225765] [2021-03-25 09:30:47,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:30:47,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:30:47,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:47,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:30:47,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:47,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:30:47,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:47,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:47,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:47,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:47,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:47,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:47,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:47,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:47,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:47,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:47,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:47,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:47,815 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:30:47,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:30:47,827 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:30:47,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:47,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:30:47,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971225765] [2021-03-25 09:30:47,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:30:47,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:30:47,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963566392] [2021-03-25 09:30:47,830 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:30:47,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:30:47,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:30:47,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:30:47,831 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 99 [2021-03-25 09:30:47,831 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 212 transitions, 3168 flow. Second operand has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:47,831 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:30:47,831 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 99 [2021-03-25 09:30:47,831 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:30:48,079 INFO L129 PetriNetUnfolder]: 339/751 cut-off events. [2021-03-25 09:30:48,079 INFO L130 PetriNetUnfolder]: For 4374/4409 co-relation queries the response was YES. [2021-03-25 09:30:48,083 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4396 conditions, 751 events. 339/751 cut-off events. For 4374/4409 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4331 event pairs, 18 based on Foata normal form. 18/668 useless extension candidates. Maximal degree in co-relation 4277. Up to 350 conditions per place. [2021-03-25 09:30:48,087 INFO L132 encePairwiseOnDemand]: 81/99 looper letters, 98 selfloop transitions, 105 changer transitions 6/227 dead transitions. [2021-03-25 09:30:48,087 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 227 transitions, 3716 flow [2021-03-25 09:30:48,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:30:48,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:30:48,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 552 transitions. [2021-03-25 09:30:48,088 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5575757575757576 [2021-03-25 09:30:48,088 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 552 transitions. [2021-03-25 09:30:48,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 552 transitions. [2021-03-25 09:30:48,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:30:48,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 552 transitions. [2021-03-25 09:30:48,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 55.2) internal successors, (552), 10 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:48,090 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 99.0) internal successors, (1089), 11 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:48,090 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 99.0) internal successors, (1089), 11 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:48,090 INFO L185 Difference]: Start difference. First operand has 152 places, 212 transitions, 3168 flow. Second operand 10 states and 552 transitions. [2021-03-25 09:30:48,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 227 transitions, 3716 flow [2021-03-25 09:30:48,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 227 transitions, 3655 flow, removed 4 selfloop flow, removed 4 redundant places. [2021-03-25 09:30:48,123 INFO L241 Difference]: Finished difference. Result has 159 places, 208 transitions, 3330 flow [2021-03-25 09:30:48,123 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=3107, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3330, PETRI_PLACES=159, PETRI_TRANSITIONS=208} [2021-03-25 09:30:48,124 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 98 predicate places. [2021-03-25 09:30:48,124 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:30:48,124 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 159 places, 208 transitions, 3330 flow [2021-03-25 09:30:48,124 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 159 places, 208 transitions, 3330 flow [2021-03-25 09:30:48,125 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 159 places, 208 transitions, 3330 flow [2021-03-25 09:30:48,167 INFO L129 PetriNetUnfolder]: 265/602 cut-off events. [2021-03-25 09:30:48,167 INFO L130 PetriNetUnfolder]: For 4979/4987 co-relation queries the response was YES. [2021-03-25 09:30:48,171 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3543 conditions, 602 events. 265/602 cut-off events. For 4979/4987 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3400 event pairs, 12 based on Foata normal form. 0/522 useless extension candidates. Maximal degree in co-relation 3431. Up to 239 conditions per place. [2021-03-25 09:30:48,175 INFO L142 LiptonReduction]: Number of co-enabled transitions 1272 [2021-03-25 09:30:48,182 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:30:48,182 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:30:48,182 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 58 [2021-03-25 09:30:48,183 INFO L480 AbstractCegarLoop]: Abstraction has has 159 places, 208 transitions, 3330 flow [2021-03-25 09:30:48,183 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:48,183 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:30:48,183 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:30:48,183 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-25 09:30:48,183 INFO L428 AbstractCegarLoop]: === Iteration 18 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:30:48,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:30:48,183 INFO L82 PathProgramCache]: Analyzing trace with hash 124271280, now seen corresponding path program 5 times [2021-03-25 09:30:48,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:30:48,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935533963] [2021-03-25 09:30:48,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:30:48,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:30:48,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:48,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:30:48,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:48,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:30:48,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:48,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:48,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:48,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:48,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:48,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:48,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:48,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:48,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:48,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:48,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:48,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:48,272 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:30:48,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:30:48,287 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:30:48,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:48,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:30:48,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935533963] [2021-03-25 09:30:48,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:30:48,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:30:48,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480649915] [2021-03-25 09:30:48,289 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:30:48,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:30:48,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:30:48,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:30:48,290 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 99 [2021-03-25 09:30:48,290 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 208 transitions, 3330 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:48,291 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:30:48,291 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 99 [2021-03-25 09:30:48,291 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:30:48,694 INFO L129 PetriNetUnfolder]: 359/793 cut-off events. [2021-03-25 09:30:48,694 INFO L130 PetriNetUnfolder]: For 5359/5367 co-relation queries the response was YES. [2021-03-25 09:30:48,699 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4806 conditions, 793 events. 359/793 cut-off events. For 5359/5367 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 4625 event pairs, 18 based on Foata normal form. 9/695 useless extension candidates. Maximal degree in co-relation 4678. Up to 400 conditions per place. [2021-03-25 09:30:48,718 INFO L132 encePairwiseOnDemand]: 79/99 looper letters, 131 selfloop transitions, 96 changer transitions 4/249 dead transitions. [2021-03-25 09:30:48,718 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 249 transitions, 4398 flow [2021-03-25 09:30:48,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:30:48,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:30:48,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 758 transitions. [2021-03-25 09:30:48,719 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5468975468975469 [2021-03-25 09:30:48,719 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 758 transitions. [2021-03-25 09:30:48,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 758 transitions. [2021-03-25 09:30:48,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:30:48,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 758 transitions. [2021-03-25 09:30:48,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 54.142857142857146) internal successors, (758), 14 states have internal predecessors, (758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:48,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 99.0) internal successors, (1485), 15 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:48,722 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 99.0) internal successors, (1485), 15 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:48,722 INFO L185 Difference]: Start difference. First operand has 159 places, 208 transitions, 3330 flow. Second operand 14 states and 758 transitions. [2021-03-25 09:30:48,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 249 transitions, 4398 flow [2021-03-25 09:30:48,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 249 transitions, 4032 flow, removed 11 selfloop flow, removed 14 redundant places. [2021-03-25 09:30:48,755 INFO L241 Difference]: Finished difference. Result has 163 places, 231 transitions, 3738 flow [2021-03-25 09:30:48,756 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=3003, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3738, PETRI_PLACES=163, PETRI_TRANSITIONS=231} [2021-03-25 09:30:48,756 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 102 predicate places. [2021-03-25 09:30:48,756 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:30:48,756 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 163 places, 231 transitions, 3738 flow [2021-03-25 09:30:48,756 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 163 places, 231 transitions, 3738 flow [2021-03-25 09:30:48,757 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 163 places, 231 transitions, 3738 flow [2021-03-25 09:30:48,802 INFO L129 PetriNetUnfolder]: 280/645 cut-off events. [2021-03-25 09:30:48,802 INFO L130 PetriNetUnfolder]: For 4768/4776 co-relation queries the response was YES. [2021-03-25 09:30:48,805 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3784 conditions, 645 events. 280/645 cut-off events. For 4768/4776 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 3775 event pairs, 21 based on Foata normal form. 0/555 useless extension candidates. Maximal degree in co-relation 3671. Up to 259 conditions per place. [2021-03-25 09:30:48,810 INFO L142 LiptonReduction]: Number of co-enabled transitions 1408 [2021-03-25 09:30:48,818 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:30:48,818 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:30:48,818 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 62 [2021-03-25 09:30:48,819 INFO L480 AbstractCegarLoop]: Abstraction has has 163 places, 231 transitions, 3738 flow [2021-03-25 09:30:48,819 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:48,819 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:30:48,819 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:30:48,819 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-25 09:30:48,819 INFO L428 AbstractCegarLoop]: === Iteration 19 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:30:48,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:30:48,819 INFO L82 PathProgramCache]: Analyzing trace with hash -732208334, now seen corresponding path program 6 times [2021-03-25 09:30:48,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:30:48,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255657721] [2021-03-25 09:30:48,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:30:48,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:30:48,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:48,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:30:48,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:48,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:30:48,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:48,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:48,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:48,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:48,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:48,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:48,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:48,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:48,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:48,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:48,885 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:30:48,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:30:48,907 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:30:48,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:30:48,919 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:30:48,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:48,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:30:48,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255657721] [2021-03-25 09:30:48,922 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:30:48,922 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:30:48,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164712147] [2021-03-25 09:30:48,923 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:30:48,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:30:48,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:30:48,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:30:48,924 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 99 [2021-03-25 09:30:48,924 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 231 transitions, 3738 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:48,924 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:30:48,924 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 99 [2021-03-25 09:30:48,924 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:30:49,216 INFO L129 PetriNetUnfolder]: 357/792 cut-off events. [2021-03-25 09:30:49,216 INFO L130 PetriNetUnfolder]: For 5260/5286 co-relation queries the response was YES. [2021-03-25 09:30:49,220 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4842 conditions, 792 events. 357/792 cut-off events. For 5260/5286 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 4615 event pairs, 18 based on Foata normal form. 15/701 useless extension candidates. Maximal degree in co-relation 4718. Up to 445 conditions per place. [2021-03-25 09:30:49,224 INFO L132 encePairwiseOnDemand]: 79/99 looper letters, 184 selfloop transitions, 43 changer transitions 2/247 dead transitions. [2021-03-25 09:30:49,224 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 247 transitions, 4387 flow [2021-03-25 09:30:49,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:30:49,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:30:49,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 633 transitions. [2021-03-25 09:30:49,225 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5328282828282829 [2021-03-25 09:30:49,225 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 633 transitions. [2021-03-25 09:30:49,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 633 transitions. [2021-03-25 09:30:49,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:30:49,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 633 transitions. [2021-03-25 09:30:49,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 52.75) internal successors, (633), 12 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:49,228 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 99.0) internal successors, (1287), 13 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:49,228 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 99.0) internal successors, (1287), 13 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:49,228 INFO L185 Difference]: Start difference. First operand has 163 places, 231 transitions, 3738 flow. Second operand 12 states and 633 transitions. [2021-03-25 09:30:49,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 247 transitions, 4387 flow [2021-03-25 09:30:49,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 247 transitions, 4265 flow, removed 25 selfloop flow, removed 7 redundant places. [2021-03-25 09:30:49,271 INFO L241 Difference]: Finished difference. Result has 172 places, 237 transitions, 3861 flow [2021-03-25 09:30:49,271 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=3620, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3861, PETRI_PLACES=172, PETRI_TRANSITIONS=237} [2021-03-25 09:30:49,271 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 111 predicate places. [2021-03-25 09:30:49,271 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:30:49,271 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 172 places, 237 transitions, 3861 flow [2021-03-25 09:30:49,272 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 172 places, 237 transitions, 3861 flow [2021-03-25 09:30:49,273 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 171 places, 237 transitions, 3861 flow [2021-03-25 09:30:49,323 INFO L129 PetriNetUnfolder]: 285/660 cut-off events. [2021-03-25 09:30:49,323 INFO L130 PetriNetUnfolder]: For 4680/4683 co-relation queries the response was YES. [2021-03-25 09:30:49,327 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3887 conditions, 660 events. 285/660 cut-off events. For 4680/4683 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3873 event pairs, 19 based on Foata normal form. 0/565 useless extension candidates. Maximal degree in co-relation 3768. Up to 262 conditions per place. [2021-03-25 09:30:49,332 INFO L142 LiptonReduction]: Number of co-enabled transitions 1410 [2021-03-25 09:30:49,342 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:30:49,342 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:30:49,342 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 71 [2021-03-25 09:30:49,344 INFO L480 AbstractCegarLoop]: Abstraction has has 171 places, 237 transitions, 3861 flow [2021-03-25 09:30:49,344 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:49,344 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:30:49,344 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:30:49,344 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-25 09:30:49,344 INFO L428 AbstractCegarLoop]: === Iteration 20 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:30:49,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:30:49,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1300866676, now seen corresponding path program 4 times [2021-03-25 09:30:49,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:30:49,345 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597343228] [2021-03-25 09:30:49,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:30:49,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:30:49,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:49,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:30:49,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:49,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:30:49,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:49,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:49,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:49,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:49,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:49,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:49,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:49,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:49,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:49,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:49,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:49,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:49,435 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:30:49,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:30:49,454 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:30:49,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:49,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:30:49,457 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597343228] [2021-03-25 09:30:49,457 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:30:49,457 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:30:49,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641156946] [2021-03-25 09:30:49,458 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:30:49,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:30:49,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:30:49,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:30:49,459 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 99 [2021-03-25 09:30:49,459 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 237 transitions, 3861 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:49,460 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:30:49,460 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 99 [2021-03-25 09:30:49,460 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:30:49,795 INFO L129 PetriNetUnfolder]: 363/804 cut-off events. [2021-03-25 09:30:49,796 INFO L130 PetriNetUnfolder]: For 5610/5618 co-relation queries the response was YES. [2021-03-25 09:30:49,800 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5022 conditions, 804 events. 363/804 cut-off events. For 5610/5618 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 4693 event pairs, 15 based on Foata normal form. 9/708 useless extension candidates. Maximal degree in co-relation 4892. Up to 389 conditions per place. [2021-03-25 09:30:49,803 INFO L132 encePairwiseOnDemand]: 80/99 looper letters, 125 selfloop transitions, 72 changer transitions 50/265 dead transitions. [2021-03-25 09:30:49,803 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 265 transitions, 4668 flow [2021-03-25 09:30:49,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:30:49,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:30:49,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 607 transitions. [2021-03-25 09:30:49,804 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5573921028466483 [2021-03-25 09:30:49,804 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 607 transitions. [2021-03-25 09:30:49,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 607 transitions. [2021-03-25 09:30:49,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:30:49,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 607 transitions. [2021-03-25 09:30:49,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 55.18181818181818) internal successors, (607), 11 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:49,806 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 99.0) internal successors, (1188), 12 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:49,806 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 99.0) internal successors, (1188), 12 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:49,806 INFO L185 Difference]: Start difference. First operand has 171 places, 237 transitions, 3861 flow. Second operand 11 states and 607 transitions. [2021-03-25 09:30:49,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 265 transitions, 4668 flow [2021-03-25 09:30:49,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 265 transitions, 4591 flow, removed 9 selfloop flow, removed 9 redundant places. [2021-03-25 09:30:49,850 INFO L241 Difference]: Finished difference. Result has 175 places, 201 transitions, 3366 flow [2021-03-25 09:30:49,850 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=3793, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3366, PETRI_PLACES=175, PETRI_TRANSITIONS=201} [2021-03-25 09:30:49,851 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 114 predicate places. [2021-03-25 09:30:49,852 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:30:49,852 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 175 places, 201 transitions, 3366 flow [2021-03-25 09:30:49,852 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 175 places, 201 transitions, 3366 flow [2021-03-25 09:30:49,853 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 166 places, 201 transitions, 3366 flow [2021-03-25 09:30:49,893 INFO L129 PetriNetUnfolder]: 264/546 cut-off events. [2021-03-25 09:30:49,894 INFO L130 PetriNetUnfolder]: For 5417/5431 co-relation queries the response was YES. [2021-03-25 09:30:49,897 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3743 conditions, 546 events. 264/546 cut-off events. For 5417/5431 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2810 event pairs, 13 based on Foata normal form. 0/483 useless extension candidates. Maximal degree in co-relation 3655. Up to 241 conditions per place. [2021-03-25 09:30:49,901 INFO L142 LiptonReduction]: Number of co-enabled transitions 954 [2021-03-25 09:30:49,907 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:30:49,908 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:30:49,908 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 56 [2021-03-25 09:30:49,908 INFO L480 AbstractCegarLoop]: Abstraction has has 166 places, 201 transitions, 3366 flow [2021-03-25 09:30:49,908 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:49,908 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:30:49,908 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:30:49,908 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-25 09:30:49,908 INFO L428 AbstractCegarLoop]: === Iteration 21 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:30:49,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:30:49,909 INFO L82 PathProgramCache]: Analyzing trace with hash -105418444, now seen corresponding path program 7 times [2021-03-25 09:30:49,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:30:49,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179176227] [2021-03-25 09:30:49,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:30:49,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:30:49,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:49,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:30:49,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:49,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:30:49,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:49,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:49,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:49,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:49,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:49,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:49,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:49,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:49,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:49,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:49,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:49,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:49,990 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:30:49,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:30:50,003 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:30:50,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:50,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:30:50,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179176227] [2021-03-25 09:30:50,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:30:50,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:30:50,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669260727] [2021-03-25 09:30:50,005 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:30:50,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:30:50,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:30:50,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:30:50,006 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 99 [2021-03-25 09:30:50,007 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 201 transitions, 3366 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:50,007 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:30:50,007 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 99 [2021-03-25 09:30:50,007 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:30:50,325 INFO L129 PetriNetUnfolder]: 337/693 cut-off events. [2021-03-25 09:30:50,326 INFO L130 PetriNetUnfolder]: For 6634/6671 co-relation queries the response was YES. [2021-03-25 09:30:50,329 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4869 conditions, 693 events. 337/693 cut-off events. For 6634/6671 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3655 event pairs, 16 based on Foata normal form. 27/642 useless extension candidates. Maximal degree in co-relation 4777. Up to 401 conditions per place. [2021-03-25 09:30:50,335 INFO L132 encePairwiseOnDemand]: 81/99 looper letters, 152 selfloop transitions, 63 changer transitions 0/233 dead transitions. [2021-03-25 09:30:50,335 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 233 transitions, 4239 flow [2021-03-25 09:30:50,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:30:50,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:30:50,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 646 transitions. [2021-03-25 09:30:50,336 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5437710437710438 [2021-03-25 09:30:50,336 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 646 transitions. [2021-03-25 09:30:50,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 646 transitions. [2021-03-25 09:30:50,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:30:50,336 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 646 transitions. [2021-03-25 09:30:50,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 53.833333333333336) internal successors, (646), 12 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:50,352 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 99.0) internal successors, (1287), 13 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:50,353 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 99.0) internal successors, (1287), 13 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:50,353 INFO L185 Difference]: Start difference. First operand has 166 places, 201 transitions, 3366 flow. Second operand 12 states and 646 transitions. [2021-03-25 09:30:50,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 233 transitions, 4239 flow [2021-03-25 09:30:50,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 233 transitions, 3505 flow, removed 88 selfloop flow, removed 32 redundant places. [2021-03-25 09:30:50,407 INFO L241 Difference]: Finished difference. Result has 148 places, 217 transitions, 3165 flow [2021-03-25 09:30:50,407 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=2709, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3165, PETRI_PLACES=148, PETRI_TRANSITIONS=217} [2021-03-25 09:30:50,407 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 87 predicate places. [2021-03-25 09:30:50,407 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:30:50,408 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 148 places, 217 transitions, 3165 flow [2021-03-25 09:30:50,408 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 148 places, 217 transitions, 3165 flow [2021-03-25 09:30:50,409 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 148 places, 217 transitions, 3165 flow [2021-03-25 09:30:50,461 INFO L129 PetriNetUnfolder]: 284/605 cut-off events. [2021-03-25 09:30:50,461 INFO L130 PetriNetUnfolder]: For 3750/3764 co-relation queries the response was YES. [2021-03-25 09:30:50,464 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3625 conditions, 605 events. 284/605 cut-off events. For 3750/3764 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3212 event pairs, 13 based on Foata normal form. 0/529 useless extension candidates. Maximal degree in co-relation 3546. Up to 245 conditions per place. [2021-03-25 09:30:50,469 INFO L142 LiptonReduction]: Number of co-enabled transitions 986 [2021-03-25 09:30:50,476 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:30:50,476 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:30:50,476 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 69 [2021-03-25 09:30:50,476 INFO L480 AbstractCegarLoop]: Abstraction has has 148 places, 217 transitions, 3165 flow [2021-03-25 09:30:50,476 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:50,476 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:30:50,476 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:30:50,476 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-25 09:30:50,477 INFO L428 AbstractCegarLoop]: === Iteration 22 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:30:50,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:30:50,477 INFO L82 PathProgramCache]: Analyzing trace with hash -588983128, now seen corresponding path program 8 times [2021-03-25 09:30:50,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:30:50,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84192743] [2021-03-25 09:30:50,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:30:50,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:30:50,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:50,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:30:50,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:50,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:30:50,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:50,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:50,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:50,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:50,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:50,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:50,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:50,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:50,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:50,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:50,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:50,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:50,564 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:30:50,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:30:50,578 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:30:50,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:50,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:30:50,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84192743] [2021-03-25 09:30:50,580 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:30:50,580 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:30:50,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209104929] [2021-03-25 09:30:50,580 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:30:50,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:30:50,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:30:50,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:30:50,581 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 99 [2021-03-25 09:30:50,582 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 217 transitions, 3165 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:50,582 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:30:50,582 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 99 [2021-03-25 09:30:50,582 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:30:50,859 INFO L129 PetriNetUnfolder]: 346/723 cut-off events. [2021-03-25 09:30:50,860 INFO L130 PetriNetUnfolder]: For 4705/4713 co-relation queries the response was YES. [2021-03-25 09:30:50,862 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4606 conditions, 723 events. 346/723 cut-off events. For 4705/4713 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3860 event pairs, 13 based on Foata normal form. 9/647 useless extension candidates. Maximal degree in co-relation 4517. Up to 423 conditions per place. [2021-03-25 09:30:50,865 INFO L132 encePairwiseOnDemand]: 81/99 looper letters, 171 selfloop transitions, 50 changer transitions 0/239 dead transitions. [2021-03-25 09:30:50,865 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 239 transitions, 3843 flow [2021-03-25 09:30:50,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:30:50,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:30:50,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 641 transitions. [2021-03-25 09:30:50,866 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5395622895622896 [2021-03-25 09:30:50,867 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 641 transitions. [2021-03-25 09:30:50,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 641 transitions. [2021-03-25 09:30:50,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:30:50,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 641 transitions. [2021-03-25 09:30:50,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 53.416666666666664) internal successors, (641), 12 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:50,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 99.0) internal successors, (1287), 13 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:50,869 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 99.0) internal successors, (1287), 13 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:50,869 INFO L185 Difference]: Start difference. First operand has 148 places, 217 transitions, 3165 flow. Second operand 12 states and 641 transitions. [2021-03-25 09:30:50,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 239 transitions, 3843 flow [2021-03-25 09:30:50,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 239 transitions, 3515 flow, removed 102 selfloop flow, removed 9 redundant places. [2021-03-25 09:30:50,894 INFO L241 Difference]: Finished difference. Result has 153 places, 225 transitions, 3131 flow [2021-03-25 09:30:50,894 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=2879, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3131, PETRI_PLACES=153, PETRI_TRANSITIONS=225} [2021-03-25 09:30:50,895 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 92 predicate places. [2021-03-25 09:30:50,895 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:30:50,895 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 153 places, 225 transitions, 3131 flow [2021-03-25 09:30:50,895 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 153 places, 225 transitions, 3131 flow [2021-03-25 09:30:50,896 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 153 places, 225 transitions, 3131 flow [2021-03-25 09:30:50,935 INFO L129 PetriNetUnfolder]: 289/624 cut-off events. [2021-03-25 09:30:50,936 INFO L130 PetriNetUnfolder]: For 3552/3566 co-relation queries the response was YES. [2021-03-25 09:30:50,938 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3512 conditions, 624 events. 289/624 cut-off events. For 3552/3566 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3395 event pairs, 17 based on Foata normal form. 0/545 useless extension candidates. Maximal degree in co-relation 3427. Up to 252 conditions per place. [2021-03-25 09:30:50,942 INFO L142 LiptonReduction]: Number of co-enabled transitions 1012 [2021-03-25 09:30:50,949 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:30:50,949 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:30:50,949 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 54 [2021-03-25 09:30:50,951 INFO L480 AbstractCegarLoop]: Abstraction has has 153 places, 225 transitions, 3131 flow [2021-03-25 09:30:50,951 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:50,951 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:30:50,951 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:30:50,952 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-25 09:30:50,952 INFO L428 AbstractCegarLoop]: === Iteration 23 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:30:50,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:30:50,952 INFO L82 PathProgramCache]: Analyzing trace with hash 2005551306, now seen corresponding path program 9 times [2021-03-25 09:30:50,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:30:50,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130605300] [2021-03-25 09:30:50,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:30:50,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:30:50,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:50,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:30:50,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:50,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:30:50,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:50,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:50,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:50,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:51,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:51,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:51,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:51,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:51,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:51,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:51,035 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:30:51,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:30:51,053 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:30:51,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:30:51,066 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:30:51,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:51,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:30:51,068 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130605300] [2021-03-25 09:30:51,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:30:51,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:30:51,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982866327] [2021-03-25 09:30:51,069 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:30:51,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:30:51,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:30:51,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:30:51,070 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 99 [2021-03-25 09:30:51,070 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 225 transitions, 3131 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:51,070 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:30:51,070 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 99 [2021-03-25 09:30:51,070 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:30:51,348 INFO L129 PetriNetUnfolder]: 345/727 cut-off events. [2021-03-25 09:30:51,348 INFO L130 PetriNetUnfolder]: For 4440/4498 co-relation queries the response was YES. [2021-03-25 09:30:51,351 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4399 conditions, 727 events. 345/727 cut-off events. For 4440/4498 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3935 event pairs, 19 based on Foata normal form. 36/678 useless extension candidates. Maximal degree in co-relation 4308. Up to 433 conditions per place. [2021-03-25 09:30:51,354 INFO L132 encePairwiseOnDemand]: 81/99 looper letters, 167 selfloop transitions, 48 changer transitions 3/236 dead transitions. [2021-03-25 09:30:51,354 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 236 transitions, 3637 flow [2021-03-25 09:30:51,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:30:51,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:30:51,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 684 transitions. [2021-03-25 09:30:51,355 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5314685314685315 [2021-03-25 09:30:51,355 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 684 transitions. [2021-03-25 09:30:51,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 684 transitions. [2021-03-25 09:30:51,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:30:51,356 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 684 transitions. [2021-03-25 09:30:51,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 52.61538461538461) internal successors, (684), 13 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:51,358 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 99.0) internal successors, (1386), 14 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:51,358 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 99.0) internal successors, (1386), 14 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:51,358 INFO L185 Difference]: Start difference. First operand has 153 places, 225 transitions, 3131 flow. Second operand 13 states and 684 transitions. [2021-03-25 09:30:51,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 236 transitions, 3637 flow [2021-03-25 09:30:51,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 236 transitions, 3569 flow, removed 6 selfloop flow, removed 7 redundant places. [2021-03-25 09:30:51,384 INFO L241 Difference]: Finished difference. Result has 160 places, 223 transitions, 3140 flow [2021-03-25 09:30:51,385 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=3063, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3140, PETRI_PLACES=160, PETRI_TRANSITIONS=223} [2021-03-25 09:30:51,385 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 99 predicate places. [2021-03-25 09:30:51,385 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:30:51,385 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 160 places, 223 transitions, 3140 flow [2021-03-25 09:30:51,385 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 160 places, 223 transitions, 3140 flow [2021-03-25 09:30:51,386 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 159 places, 223 transitions, 3140 flow [2021-03-25 09:30:51,427 INFO L129 PetriNetUnfolder]: 292/631 cut-off events. [2021-03-25 09:30:51,427 INFO L130 PetriNetUnfolder]: For 3611/3625 co-relation queries the response was YES. [2021-03-25 09:30:51,430 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3540 conditions, 631 events. 292/631 cut-off events. For 3611/3625 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3499 event pairs, 14 based on Foata normal form. 0/549 useless extension candidates. Maximal degree in co-relation 3461. Up to 252 conditions per place. [2021-03-25 09:30:51,434 INFO L142 LiptonReduction]: Number of co-enabled transitions 1012 [2021-03-25 09:30:51,441 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:30:51,441 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:30:51,441 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 56 [2021-03-25 09:30:51,442 INFO L480 AbstractCegarLoop]: Abstraction has has 159 places, 223 transitions, 3140 flow [2021-03-25 09:30:51,442 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:51,442 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:30:51,442 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:30:51,442 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-25 09:30:51,442 INFO L428 AbstractCegarLoop]: === Iteration 24 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:30:51,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:30:51,442 INFO L82 PathProgramCache]: Analyzing trace with hash -207116008, now seen corresponding path program 10 times [2021-03-25 09:30:51,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:30:51,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564276085] [2021-03-25 09:30:51,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:30:51,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:30:51,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:51,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:30:51,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:51,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:30:51,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:51,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:51,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:51,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:51,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:51,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:51,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:51,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:51,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:51,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:51,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:51,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:51,523 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:30:51,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:30:51,534 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:30:51,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:51,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:30:51,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564276085] [2021-03-25 09:30:51,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:30:51,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:30:51,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338211353] [2021-03-25 09:30:51,536 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:30:51,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:30:51,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:30:51,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:30:51,537 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 99 [2021-03-25 09:30:51,537 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 223 transitions, 3140 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:51,537 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:30:51,537 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 99 [2021-03-25 09:30:51,537 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:30:51,763 INFO L129 PetriNetUnfolder]: 341/711 cut-off events. [2021-03-25 09:30:51,763 INFO L130 PetriNetUnfolder]: For 4371/4401 co-relation queries the response was YES. [2021-03-25 09:30:51,767 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4388 conditions, 711 events. 341/711 cut-off events. For 4371/4401 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3796 event pairs, 15 based on Foata normal form. 17/647 useless extension candidates. Maximal degree in co-relation 4311. Up to 433 conditions per place. [2021-03-25 09:30:51,770 INFO L132 encePairwiseOnDemand]: 81/99 looper letters, 179 selfloop transitions, 33 changer transitions 7/237 dead transitions. [2021-03-25 09:30:51,770 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 237 transitions, 3692 flow [2021-03-25 09:30:51,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:30:51,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:30:51,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 584 transitions. [2021-03-25 09:30:51,771 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5362718089990818 [2021-03-25 09:30:51,771 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 584 transitions. [2021-03-25 09:30:51,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 584 transitions. [2021-03-25 09:30:51,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:30:51,772 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 584 transitions. [2021-03-25 09:30:51,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 53.09090909090909) internal successors, (584), 11 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:51,773 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 99.0) internal successors, (1188), 12 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:51,773 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 99.0) internal successors, (1188), 12 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:51,773 INFO L185 Difference]: Start difference. First operand has 159 places, 223 transitions, 3140 flow. Second operand 11 states and 584 transitions. [2021-03-25 09:30:51,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 237 transitions, 3692 flow [2021-03-25 09:30:51,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 237 transitions, 3569 flow, removed 5 selfloop flow, removed 13 redundant places. [2021-03-25 09:30:51,799 INFO L241 Difference]: Finished difference. Result has 158 places, 220 transitions, 3054 flow [2021-03-25 09:30:51,799 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=3019, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3054, PETRI_PLACES=158, PETRI_TRANSITIONS=220} [2021-03-25 09:30:51,799 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 97 predicate places. [2021-03-25 09:30:51,799 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:30:51,799 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 158 places, 220 transitions, 3054 flow [2021-03-25 09:30:51,799 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 158 places, 220 transitions, 3054 flow [2021-03-25 09:30:51,801 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 154 places, 220 transitions, 3054 flow [2021-03-25 09:30:51,839 INFO L129 PetriNetUnfolder]: 288/607 cut-off events. [2021-03-25 09:30:51,839 INFO L130 PetriNetUnfolder]: For 3615/3629 co-relation queries the response was YES. [2021-03-25 09:30:51,841 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3443 conditions, 607 events. 288/607 cut-off events. For 3615/3629 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3207 event pairs, 16 based on Foata normal form. 0/531 useless extension candidates. Maximal degree in co-relation 3371. Up to 249 conditions per place. [2021-03-25 09:30:51,845 INFO L142 LiptonReduction]: Number of co-enabled transitions 984 [2021-03-25 09:30:51,852 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:30:51,853 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:30:51,853 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 54 [2021-03-25 09:30:51,853 INFO L480 AbstractCegarLoop]: Abstraction has has 154 places, 220 transitions, 3054 flow [2021-03-25 09:30:51,853 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:51,853 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:30:51,853 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:30:51,853 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-03-25 09:30:51,853 INFO L428 AbstractCegarLoop]: === Iteration 25 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:30:51,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:30:51,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1187190662, now seen corresponding path program 11 times [2021-03-25 09:30:51,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:30:51,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931550785] [2021-03-25 09:30:51,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:30:51,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:30:51,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:51,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:30:51,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:51,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:30:51,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:51,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:51,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:51,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:51,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:51,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:51,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:51,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:51,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:51,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:51,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:51,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:51,925 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:30:51,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:30:51,936 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:30:51,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:51,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:30:51,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931550785] [2021-03-25 09:30:51,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:30:51,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:30:51,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099502700] [2021-03-25 09:30:51,942 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:30:51,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:30:51,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:30:51,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:30:51,943 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 99 [2021-03-25 09:30:51,943 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 220 transitions, 3054 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:51,943 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:30:51,943 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 99 [2021-03-25 09:30:51,943 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:30:52,193 INFO L129 PetriNetUnfolder]: 335/689 cut-off events. [2021-03-25 09:30:52,193 INFO L130 PetriNetUnfolder]: For 4465/4494 co-relation queries the response was YES. [2021-03-25 09:30:52,197 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4292 conditions, 689 events. 335/689 cut-off events. For 4465/4494 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3600 event pairs, 16 based on Foata normal form. 27/640 useless extension candidates. Maximal degree in co-relation 4216. Up to 416 conditions per place. [2021-03-25 09:30:52,199 INFO L132 encePairwiseOnDemand]: 81/99 looper letters, 160 selfloop transitions, 52 changer transitions 4/234 dead transitions. [2021-03-25 09:30:52,199 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 234 transitions, 3588 flow [2021-03-25 09:30:52,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:30:52,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:30:52,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 590 transitions. [2021-03-25 09:30:52,229 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.54178145087236 [2021-03-25 09:30:52,229 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 590 transitions. [2021-03-25 09:30:52,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 590 transitions. [2021-03-25 09:30:52,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:30:52,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 590 transitions. [2021-03-25 09:30:52,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 53.63636363636363) internal successors, (590), 11 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:52,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 99.0) internal successors, (1188), 12 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:52,235 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 99.0) internal successors, (1188), 12 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:52,235 INFO L185 Difference]: Start difference. First operand has 154 places, 220 transitions, 3054 flow. Second operand 11 states and 590 transitions. [2021-03-25 09:30:52,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 234 transitions, 3588 flow [2021-03-25 09:30:52,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 234 transitions, 3483 flow, removed 12 selfloop flow, removed 10 redundant places. [2021-03-25 09:30:52,260 INFO L241 Difference]: Finished difference. Result has 156 places, 218 transitions, 3067 flow [2021-03-25 09:30:52,260 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=2953, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3067, PETRI_PLACES=156, PETRI_TRANSITIONS=218} [2021-03-25 09:30:52,262 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 95 predicate places. [2021-03-25 09:30:52,262 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:30:52,262 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 156 places, 218 transitions, 3067 flow [2021-03-25 09:30:52,262 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 156 places, 218 transitions, 3067 flow [2021-03-25 09:30:52,264 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 154 places, 218 transitions, 3067 flow [2021-03-25 09:30:52,303 INFO L129 PetriNetUnfolder]: 274/567 cut-off events. [2021-03-25 09:30:52,303 INFO L130 PetriNetUnfolder]: For 3454/3468 co-relation queries the response was YES. [2021-03-25 09:30:52,306 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3367 conditions, 567 events. 274/567 cut-off events. For 3454/3468 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2934 event pairs, 15 based on Foata normal form. 0/504 useless extension candidates. Maximal degree in co-relation 3299. Up to 246 conditions per place. [2021-03-25 09:30:52,311 INFO L142 LiptonReduction]: Number of co-enabled transitions 974 [2021-03-25 09:30:52,319 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:30:52,319 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:30:52,319 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 57 [2021-03-25 09:30:52,320 INFO L480 AbstractCegarLoop]: Abstraction has has 154 places, 218 transitions, 3067 flow [2021-03-25 09:30:52,320 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:52,320 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:30:52,320 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:30:52,320 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-03-25 09:30:52,321 INFO L428 AbstractCegarLoop]: === Iteration 26 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:30:52,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:30:52,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1970488338, now seen corresponding path program 12 times [2021-03-25 09:30:52,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:30:52,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922365189] [2021-03-25 09:30:52,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:30:52,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:30:52,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:52,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:30:52,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:52,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:30:52,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:52,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:52,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:52,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:52,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:52,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:52,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:52,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:52,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:52,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:52,415 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:30:52,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:30:52,437 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:30:52,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:30:52,450 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:30:52,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:52,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:30:52,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922365189] [2021-03-25 09:30:52,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:30:52,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:30:52,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658149026] [2021-03-25 09:30:52,454 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:30:52,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:30:52,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:30:52,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:30:52,455 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 99 [2021-03-25 09:30:52,455 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 218 transitions, 3067 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:52,455 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:30:52,455 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 99 [2021-03-25 09:30:52,455 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:30:52,748 INFO L129 PetriNetUnfolder]: 329/669 cut-off events. [2021-03-25 09:30:52,749 INFO L130 PetriNetUnfolder]: For 4213/4242 co-relation queries the response was YES. [2021-03-25 09:30:52,752 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4226 conditions, 669 events. 329/669 cut-off events. For 4213/4242 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 3451 event pairs, 17 based on Foata normal form. 27/625 useless extension candidates. Maximal degree in co-relation 4154. Up to 416 conditions per place. [2021-03-25 09:30:52,756 INFO L132 encePairwiseOnDemand]: 81/99 looper letters, 160 selfloop transitions, 49 changer transitions 3/230 dead transitions. [2021-03-25 09:30:52,763 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 230 transitions, 3566 flow [2021-03-25 09:30:52,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:30:52,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:30:52,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 635 transitions. [2021-03-25 09:30:52,764 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5345117845117845 [2021-03-25 09:30:52,765 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 635 transitions. [2021-03-25 09:30:52,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 635 transitions. [2021-03-25 09:30:52,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:30:52,765 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 635 transitions. [2021-03-25 09:30:52,765 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 52.916666666666664) internal successors, (635), 12 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:52,766 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 99.0) internal successors, (1287), 13 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:52,766 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 99.0) internal successors, (1287), 13 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:52,766 INFO L185 Difference]: Start difference. First operand has 154 places, 218 transitions, 3067 flow. Second operand 12 states and 635 transitions. [2021-03-25 09:30:52,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 230 transitions, 3566 flow [2021-03-25 09:30:52,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 230 transitions, 3420 flow, removed 4 selfloop flow, removed 12 redundant places. [2021-03-25 09:30:52,788 INFO L241 Difference]: Finished difference. Result has 155 places, 217 transitions, 3025 flow [2021-03-25 09:30:52,789 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=2921, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3025, PETRI_PLACES=155, PETRI_TRANSITIONS=217} [2021-03-25 09:30:52,789 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 94 predicate places. [2021-03-25 09:30:52,789 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:30:52,789 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 155 places, 217 transitions, 3025 flow [2021-03-25 09:30:52,789 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 155 places, 217 transitions, 3025 flow [2021-03-25 09:30:52,790 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 154 places, 217 transitions, 3025 flow [2021-03-25 09:30:52,825 INFO L129 PetriNetUnfolder]: 271/582 cut-off events. [2021-03-25 09:30:52,825 INFO L130 PetriNetUnfolder]: For 3201/3206 co-relation queries the response was YES. [2021-03-25 09:30:52,827 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3375 conditions, 582 events. 271/582 cut-off events. For 3201/3206 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3039 event pairs, 13 based on Foata normal form. 1/515 useless extension candidates. Maximal degree in co-relation 3281. Up to 242 conditions per place. [2021-03-25 09:30:52,830 INFO L142 LiptonReduction]: Number of co-enabled transitions 974 [2021-03-25 09:30:52,838 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:30:52,839 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:30:52,839 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 50 [2021-03-25 09:30:52,839 INFO L480 AbstractCegarLoop]: Abstraction has has 154 places, 217 transitions, 3025 flow [2021-03-25 09:30:52,840 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:52,840 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:30:52,841 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:30:52,841 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-03-25 09:30:52,841 INFO L428 AbstractCegarLoop]: === Iteration 27 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:30:52,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:30:52,842 INFO L82 PathProgramCache]: Analyzing trace with hash 2005477604, now seen corresponding path program 13 times [2021-03-25 09:30:52,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:30:52,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776230545] [2021-03-25 09:30:52,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:30:52,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:30:52,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:52,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:30:52,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:52,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:30:52,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:52,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:52,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:52,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:52,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:52,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:52,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:52,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:52,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:52,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:52,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:52,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:52,925 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:30:52,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:30:52,939 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:30:52,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:52,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:30:52,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776230545] [2021-03-25 09:30:52,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:30:52,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:30:52,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563662117] [2021-03-25 09:30:52,942 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:30:52,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:30:52,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:30:52,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:30:52,943 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 99 [2021-03-25 09:30:52,943 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 217 transitions, 3025 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:52,943 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:30:52,943 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 99 [2021-03-25 09:30:52,943 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:30:53,235 INFO L129 PetriNetUnfolder]: 332/676 cut-off events. [2021-03-25 09:30:53,235 INFO L130 PetriNetUnfolder]: For 3950/3980 co-relation queries the response was YES. [2021-03-25 09:30:53,238 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4252 conditions, 676 events. 332/676 cut-off events. For 3950/3980 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3512 event pairs, 16 based on Foata normal form. 18/622 useless extension candidates. Maximal degree in co-relation 4155. Up to 385 conditions per place. [2021-03-25 09:30:53,240 INFO L132 encePairwiseOnDemand]: 81/99 looper letters, 125 selfloop transitions, 99 changer transitions 0/242 dead transitions. [2021-03-25 09:30:53,240 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 242 transitions, 3736 flow [2021-03-25 09:30:53,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:30:53,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:30:53,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 756 transitions. [2021-03-25 09:30:53,241 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5454545454545454 [2021-03-25 09:30:53,241 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 756 transitions. [2021-03-25 09:30:53,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 756 transitions. [2021-03-25 09:30:53,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:30:53,241 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 756 transitions. [2021-03-25 09:30:53,242 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 54.0) internal successors, (756), 14 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:53,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 99.0) internal successors, (1485), 15 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:53,243 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 99.0) internal successors, (1485), 15 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:53,243 INFO L185 Difference]: Start difference. First operand has 154 places, 217 transitions, 3025 flow. Second operand 14 states and 756 transitions. [2021-03-25 09:30:53,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 242 transitions, 3736 flow [2021-03-25 09:30:53,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 242 transitions, 3609 flow, removed 3 selfloop flow, removed 13 redundant places. [2021-03-25 09:30:53,265 INFO L241 Difference]: Finished difference. Result has 157 places, 228 transitions, 3354 flow [2021-03-25 09:30:53,266 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=2898, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3354, PETRI_PLACES=157, PETRI_TRANSITIONS=228} [2021-03-25 09:30:53,266 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 96 predicate places. [2021-03-25 09:30:53,266 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:30:53,266 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 157 places, 228 transitions, 3354 flow [2021-03-25 09:30:53,266 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 157 places, 228 transitions, 3354 flow [2021-03-25 09:30:53,267 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 157 places, 228 transitions, 3354 flow [2021-03-25 09:30:53,303 INFO L129 PetriNetUnfolder]: 271/585 cut-off events. [2021-03-25 09:30:53,303 INFO L130 PetriNetUnfolder]: For 3543/3547 co-relation queries the response was YES. [2021-03-25 09:30:53,305 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3481 conditions, 585 events. 271/585 cut-off events. For 3543/3547 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 3130 event pairs, 11 based on Foata normal form. 0/514 useless extension candidates. Maximal degree in co-relation 3388. Up to 246 conditions per place. [2021-03-25 09:30:53,308 INFO L142 LiptonReduction]: Number of co-enabled transitions 1026 [2021-03-25 09:30:53,316 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:30:53,316 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:30:53,316 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 50 [2021-03-25 09:30:53,316 INFO L480 AbstractCegarLoop]: Abstraction has has 157 places, 228 transitions, 3354 flow [2021-03-25 09:30:53,316 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:53,316 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:30:53,316 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:30:53,316 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-03-25 09:30:53,316 INFO L428 AbstractCegarLoop]: === Iteration 28 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:30:53,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:30:53,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1969979182, now seen corresponding path program 14 times [2021-03-25 09:30:53,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:30:53,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805700944] [2021-03-25 09:30:53,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:30:53,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:30:53,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:53,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:30:53,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:53,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:30:53,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:53,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:53,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:53,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:53,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:53,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:53,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:53,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:53,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:53,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:53,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:53,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:53,378 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:30:53,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:30:53,390 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:30:53,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:53,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:30:53,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805700944] [2021-03-25 09:30:53,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:30:53,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:30:53,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742978357] [2021-03-25 09:30:53,393 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:30:53,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:30:53,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:30:53,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:30:53,393 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 99 [2021-03-25 09:30:53,394 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 228 transitions, 3354 flow. Second operand has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:53,394 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:30:53,394 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 99 [2021-03-25 09:30:53,394 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:30:53,639 INFO L129 PetriNetUnfolder]: 338/693 cut-off events. [2021-03-25 09:30:53,639 INFO L130 PetriNetUnfolder]: For 4479/4508 co-relation queries the response was YES. [2021-03-25 09:30:53,642 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4459 conditions, 693 events. 338/693 cut-off events. For 4479/4508 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 3648 event pairs, 17 based on Foata normal form. 21/636 useless extension candidates. Maximal degree in co-relation 4361. Up to 423 conditions per place. [2021-03-25 09:30:53,644 INFO L132 encePairwiseOnDemand]: 82/99 looper letters, 171 selfloop transitions, 52 changer transitions 0/241 dead transitions. [2021-03-25 09:30:53,644 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 241 transitions, 3903 flow [2021-03-25 09:30:53,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:30:53,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:30:53,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 590 transitions. [2021-03-25 09:30:53,645 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.54178145087236 [2021-03-25 09:30:53,645 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 590 transitions. [2021-03-25 09:30:53,645 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 590 transitions. [2021-03-25 09:30:53,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:30:53,646 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 590 transitions. [2021-03-25 09:30:53,646 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 53.63636363636363) internal successors, (590), 11 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:53,647 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 99.0) internal successors, (1188), 12 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:53,647 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 99.0) internal successors, (1188), 12 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:53,647 INFO L185 Difference]: Start difference. First operand has 157 places, 228 transitions, 3354 flow. Second operand 11 states and 590 transitions. [2021-03-25 09:30:53,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 241 transitions, 3903 flow [2021-03-25 09:30:53,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 241 transitions, 3766 flow, removed 36 selfloop flow, removed 7 redundant places. [2021-03-25 09:30:53,670 INFO L241 Difference]: Finished difference. Result has 163 places, 231 transitions, 3420 flow [2021-03-25 09:30:53,670 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=3221, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3420, PETRI_PLACES=163, PETRI_TRANSITIONS=231} [2021-03-25 09:30:53,671 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 102 predicate places. [2021-03-25 09:30:53,671 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:30:53,671 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 163 places, 231 transitions, 3420 flow [2021-03-25 09:30:53,671 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 163 places, 231 transitions, 3420 flow [2021-03-25 09:30:53,672 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 163 places, 231 transitions, 3420 flow [2021-03-25 09:30:53,712 INFO L129 PetriNetUnfolder]: 289/619 cut-off events. [2021-03-25 09:30:53,712 INFO L130 PetriNetUnfolder]: For 4021/4058 co-relation queries the response was YES. [2021-03-25 09:30:53,715 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3635 conditions, 619 events. 289/619 cut-off events. For 4021/4058 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3331 event pairs, 12 based on Foata normal form. 0/538 useless extension candidates. Maximal degree in co-relation 3534. Up to 248 conditions per place. [2021-03-25 09:30:53,719 INFO L142 LiptonReduction]: Number of co-enabled transitions 1062 [2021-03-25 09:30:53,726 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:30:53,726 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:30:53,726 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 55 [2021-03-25 09:30:53,727 INFO L480 AbstractCegarLoop]: Abstraction has has 163 places, 231 transitions, 3420 flow [2021-03-25 09:30:53,727 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:53,727 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:30:53,727 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:30:53,727 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-03-25 09:30:53,727 INFO L428 AbstractCegarLoop]: === Iteration 29 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:30:53,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:30:53,727 INFO L82 PathProgramCache]: Analyzing trace with hash 280036278, now seen corresponding path program 15 times [2021-03-25 09:30:53,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:30:53,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653579504] [2021-03-25 09:30:53,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:30:53,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:30:53,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:53,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:30:53,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:53,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:30:53,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:53,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:53,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:53,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:53,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:53,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:53,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:53,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:53,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:53,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:53,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:53,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:53,811 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:30:53,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:30:53,825 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:30:53,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:53,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:30:53,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653579504] [2021-03-25 09:30:53,827 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:30:53,827 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:30:53,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574315927] [2021-03-25 09:30:53,827 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:30:53,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:30:53,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:30:53,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:30:53,828 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 99 [2021-03-25 09:30:53,828 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 231 transitions, 3420 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:53,828 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:30:53,828 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 99 [2021-03-25 09:30:53,828 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:30:54,130 INFO L129 PetriNetUnfolder]: 339/696 cut-off events. [2021-03-25 09:30:54,130 INFO L130 PetriNetUnfolder]: For 4448/4456 co-relation queries the response was YES. [2021-03-25 09:30:54,133 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4495 conditions, 696 events. 339/696 cut-off events. For 4448/4456 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3658 event pairs, 16 based on Foata normal form. 9/626 useless extension candidates. Maximal degree in co-relation 4396. Up to 411 conditions per place. [2021-03-25 09:30:54,136 INFO L132 encePairwiseOnDemand]: 81/99 looper letters, 158 selfloop transitions, 55 changer transitions 14/245 dead transitions. [2021-03-25 09:30:54,136 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 245 transitions, 3955 flow [2021-03-25 09:30:54,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:30:54,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:30:54,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 701 transitions. [2021-03-25 09:30:54,137 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5446775446775447 [2021-03-25 09:30:54,137 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 701 transitions. [2021-03-25 09:30:54,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 701 transitions. [2021-03-25 09:30:54,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:30:54,137 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 701 transitions. [2021-03-25 09:30:54,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 53.92307692307692) internal successors, (701), 13 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:54,139 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 99.0) internal successors, (1386), 14 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:54,139 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 99.0) internal successors, (1386), 14 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:54,139 INFO L185 Difference]: Start difference. First operand has 163 places, 231 transitions, 3420 flow. Second operand 13 states and 701 transitions. [2021-03-25 09:30:54,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 245 transitions, 3955 flow [2021-03-25 09:30:54,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 245 transitions, 3874 flow, removed 2 selfloop flow, removed 7 redundant places. [2021-03-25 09:30:54,165 INFO L241 Difference]: Finished difference. Result has 169 places, 218 transitions, 3280 flow [2021-03-25 09:30:54,165 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=3339, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3280, PETRI_PLACES=169, PETRI_TRANSITIONS=218} [2021-03-25 09:30:54,165 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 108 predicate places. [2021-03-25 09:30:54,166 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:30:54,166 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 169 places, 218 transitions, 3280 flow [2021-03-25 09:30:54,166 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 169 places, 218 transitions, 3280 flow [2021-03-25 09:30:54,167 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 165 places, 218 transitions, 3280 flow [2021-03-25 09:30:54,203 INFO L129 PetriNetUnfolder]: 261/549 cut-off events. [2021-03-25 09:30:54,203 INFO L130 PetriNetUnfolder]: For 3624/3628 co-relation queries the response was YES. [2021-03-25 09:30:54,205 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3430 conditions, 549 events. 261/549 cut-off events. For 3624/3628 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2829 event pairs, 13 based on Foata normal form. 0/486 useless extension candidates. Maximal degree in co-relation 3337. Up to 234 conditions per place. [2021-03-25 09:30:54,208 INFO L142 LiptonReduction]: Number of co-enabled transitions 954 [2021-03-25 09:30:54,215 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:30:54,216 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:30:54,216 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 50 [2021-03-25 09:30:54,216 INFO L480 AbstractCegarLoop]: Abstraction has has 165 places, 218 transitions, 3280 flow [2021-03-25 09:30:54,216 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:54,216 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:30:54,216 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:30:54,216 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-03-25 09:30:54,216 INFO L428 AbstractCegarLoop]: === Iteration 30 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:30:54,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:30:54,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1717348096, now seen corresponding path program 2 times [2021-03-25 09:30:54,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:30:54,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910482942] [2021-03-25 09:30:54,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:30:54,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:30:54,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:54,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:30:54,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:54,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:30:54,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:54,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:54,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:54,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:54,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:54,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:54,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:54,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:54,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:54,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:54,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:54,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:54,278 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:30:54,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:30:54,290 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:30:54,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:54,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:30:54,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910482942] [2021-03-25 09:30:54,292 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:30:54,292 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:30:54,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313033560] [2021-03-25 09:30:54,292 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:30:54,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:30:54,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:30:54,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:30:54,293 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 99 [2021-03-25 09:30:54,293 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 218 transitions, 3280 flow. Second operand has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:54,293 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:30:54,293 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 99 [2021-03-25 09:30:54,293 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:30:54,530 INFO L129 PetriNetUnfolder]: 334/675 cut-off events. [2021-03-25 09:30:54,530 INFO L130 PetriNetUnfolder]: For 4524/4532 co-relation queries the response was YES. [2021-03-25 09:30:54,533 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4458 conditions, 675 events. 334/675 cut-off events. For 4524/4532 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3491 event pairs, 15 based on Foata normal form. 9/609 useless extension candidates. Maximal degree in co-relation 4359. Up to 414 conditions per place. [2021-03-25 09:30:54,536 INFO L132 encePairwiseOnDemand]: 82/99 looper letters, 163 selfloop transitions, 54 changer transitions 0/235 dead transitions. [2021-03-25 09:30:54,536 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 235 transitions, 3904 flow [2021-03-25 09:30:54,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:30:54,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:30:54,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 590 transitions. [2021-03-25 09:30:54,537 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.54178145087236 [2021-03-25 09:30:54,537 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 590 transitions. [2021-03-25 09:30:54,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 590 transitions. [2021-03-25 09:30:54,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:30:54,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 590 transitions. [2021-03-25 09:30:54,538 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 53.63636363636363) internal successors, (590), 11 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:54,538 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 99.0) internal successors, (1188), 12 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:54,538 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 99.0) internal successors, (1188), 12 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:54,539 INFO L185 Difference]: Start difference. First operand has 165 places, 218 transitions, 3280 flow. Second operand 11 states and 590 transitions. [2021-03-25 09:30:54,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 235 transitions, 3904 flow [2021-03-25 09:30:54,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 235 transitions, 3667 flow, removed 13 selfloop flow, removed 20 redundant places. [2021-03-25 09:30:54,564 INFO L241 Difference]: Finished difference. Result has 158 places, 226 transitions, 3345 flow [2021-03-25 09:30:54,564 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=3047, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3345, PETRI_PLACES=158, PETRI_TRANSITIONS=226} [2021-03-25 09:30:54,564 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 97 predicate places. [2021-03-25 09:30:54,564 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:30:54,564 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 158 places, 226 transitions, 3345 flow [2021-03-25 09:30:54,565 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 158 places, 226 transitions, 3345 flow [2021-03-25 09:30:54,566 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 158 places, 226 transitions, 3345 flow [2021-03-25 09:30:54,616 INFO L129 PetriNetUnfolder]: 285/593 cut-off events. [2021-03-25 09:30:54,616 INFO L130 PetriNetUnfolder]: For 4190/4204 co-relation queries the response was YES. [2021-03-25 09:30:54,619 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3636 conditions, 593 events. 285/593 cut-off events. For 4190/4204 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 3071 event pairs, 14 based on Foata normal form. 0/519 useless extension candidates. Maximal degree in co-relation 3546. Up to 248 conditions per place. [2021-03-25 09:30:54,622 INFO L142 LiptonReduction]: Number of co-enabled transitions 1002 [2021-03-25 09:30:54,656 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:30:54,656 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:30:54,656 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 92 [2021-03-25 09:30:54,656 INFO L480 AbstractCegarLoop]: Abstraction has has 158 places, 226 transitions, 3360 flow [2021-03-25 09:30:54,656 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:54,656 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:30:54,656 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:30:54,656 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-03-25 09:30:54,656 INFO L428 AbstractCegarLoop]: === Iteration 31 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:30:54,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:30:54,657 INFO L82 PathProgramCache]: Analyzing trace with hash 508432802, now seen corresponding path program 3 times [2021-03-25 09:30:54,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:30:54,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441868981] [2021-03-25 09:30:54,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:30:54,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:30:54,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:54,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:30:54,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:54,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:30:54,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:54,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:54,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:54,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:54,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:54,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:54,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:54,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:54,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:54,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:54,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:54,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:54,730 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:30:54,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:30:54,743 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:30:54,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:54,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:30:54,745 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441868981] [2021-03-25 09:30:54,745 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:30:54,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:30:54,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082434764] [2021-03-25 09:30:54,746 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:30:54,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:30:54,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:30:54,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:30:54,746 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 100 [2021-03-25 09:30:54,747 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 226 transitions, 3360 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:54,747 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:30:54,747 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 100 [2021-03-25 09:30:54,747 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:30:55,097 INFO L129 PetriNetUnfolder]: 358/730 cut-off events. [2021-03-25 09:30:55,097 INFO L130 PetriNetUnfolder]: For 5942/5971 co-relation queries the response was YES. [2021-03-25 09:30:55,101 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4877 conditions, 730 events. 358/730 cut-off events. For 5942/5971 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3906 event pairs, 15 based on Foata normal form. 27/676 useless extension candidates. Maximal degree in co-relation 4778. Up to 369 conditions per place. [2021-03-25 09:30:55,103 INFO L132 encePairwiseOnDemand]: 82/100 looper letters, 105 selfloop transitions, 131 changer transitions 13/267 dead transitions. [2021-03-25 09:30:55,104 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 267 transitions, 4454 flow [2021-03-25 09:30:55,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:30:55,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:30:55,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 708 transitions. [2021-03-25 09:30:55,105 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5446153846153846 [2021-03-25 09:30:55,105 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 708 transitions. [2021-03-25 09:30:55,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 708 transitions. [2021-03-25 09:30:55,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:30:55,105 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 708 transitions. [2021-03-25 09:30:55,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 54.46153846153846) internal successors, (708), 13 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:55,106 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 100.0) internal successors, (1400), 14 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:55,106 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 100.0) internal successors, (1400), 14 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:55,106 INFO L185 Difference]: Start difference. First operand has 158 places, 226 transitions, 3360 flow. Second operand 13 states and 708 transitions. [2021-03-25 09:30:55,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 267 transitions, 4454 flow [2021-03-25 09:30:55,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 267 transitions, 4336 flow, removed 40 selfloop flow, removed 4 redundant places. [2021-03-25 09:30:55,135 INFO L241 Difference]: Finished difference. Result has 169 places, 239 transitions, 3905 flow [2021-03-25 09:30:55,135 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=3242, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=114, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3905, PETRI_PLACES=169, PETRI_TRANSITIONS=239} [2021-03-25 09:30:55,135 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 108 predicate places. [2021-03-25 09:30:55,135 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:30:55,135 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 169 places, 239 transitions, 3905 flow [2021-03-25 09:30:55,136 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 169 places, 239 transitions, 3905 flow [2021-03-25 09:30:55,137 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 168 places, 239 transitions, 3905 flow [2021-03-25 09:30:55,180 INFO L129 PetriNetUnfolder]: 288/616 cut-off events. [2021-03-25 09:30:55,180 INFO L130 PetriNetUnfolder]: For 5567/5571 co-relation queries the response was YES. [2021-03-25 09:30:55,183 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4107 conditions, 616 events. 288/616 cut-off events. For 5567/5571 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3322 event pairs, 8 based on Foata normal form. 0/539 useless extension candidates. Maximal degree in co-relation 4010. Up to 254 conditions per place. [2021-03-25 09:30:55,187 INFO L142 LiptonReduction]: Number of co-enabled transitions 1002 [2021-03-25 09:30:55,231 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-25 09:30:55,232 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:30:55,232 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 97 [2021-03-25 09:30:55,232 INFO L480 AbstractCegarLoop]: Abstraction has has 168 places, 239 transitions, 3915 flow [2021-03-25 09:30:55,232 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:55,232 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:30:55,232 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:30:55,232 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-03-25 09:30:55,232 INFO L428 AbstractCegarLoop]: === Iteration 32 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:30:55,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:30:55,233 INFO L82 PathProgramCache]: Analyzing trace with hash -1381307994, now seen corresponding path program 4 times [2021-03-25 09:30:55,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:30:55,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476236655] [2021-03-25 09:30:55,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:30:55,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:30:55,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:55,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:30:55,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:55,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:30:55,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:55,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:55,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:55,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:55,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:55,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:55,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:55,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:55,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:55,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:55,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:55,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:55,306 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:30:55,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:30:55,319 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:30:55,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:55,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:30:55,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476236655] [2021-03-25 09:30:55,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:30:55,323 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:30:55,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246967968] [2021-03-25 09:30:55,323 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:30:55,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:30:55,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:30:55,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:30:55,324 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 101 [2021-03-25 09:30:55,325 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 239 transitions, 3915 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:55,325 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:30:55,325 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 101 [2021-03-25 09:30:55,325 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:30:55,593 INFO L129 PetriNetUnfolder]: 351/721 cut-off events. [2021-03-25 09:30:55,593 INFO L130 PetriNetUnfolder]: For 6721/6765 co-relation queries the response was YES. [2021-03-25 09:30:55,597 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5195 conditions, 721 events. 351/721 cut-off events. For 6721/6765 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 3808 event pairs, 16 based on Foata normal form. 23/662 useless extension candidates. Maximal degree in co-relation 5092. Up to 450 conditions per place. [2021-03-25 09:30:55,599 INFO L132 encePairwiseOnDemand]: 83/101 looper letters, 202 selfloop transitions, 37 changer transitions 0/257 dead transitions. [2021-03-25 09:30:55,599 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 257 transitions, 4644 flow [2021-03-25 09:30:55,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:30:55,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:30:55,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 681 transitions. [2021-03-25 09:30:55,600 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5186595582635186 [2021-03-25 09:30:55,600 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 681 transitions. [2021-03-25 09:30:55,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 681 transitions. [2021-03-25 09:30:55,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:30:55,601 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 681 transitions. [2021-03-25 09:30:55,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 52.38461538461539) internal successors, (681), 13 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:55,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 101.0) internal successors, (1414), 14 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:55,602 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 101.0) internal successors, (1414), 14 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:55,602 INFO L185 Difference]: Start difference. First operand has 168 places, 239 transitions, 3915 flow. Second operand 13 states and 681 transitions. [2021-03-25 09:30:55,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 257 transitions, 4644 flow [2021-03-25 09:30:55,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 257 transitions, 4404 flow, removed 85 selfloop flow, removed 6 redundant places. [2021-03-25 09:30:55,640 INFO L241 Difference]: Finished difference. Result has 176 places, 248 transitions, 3958 flow [2021-03-25 09:30:55,640 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=3699, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3958, PETRI_PLACES=176, PETRI_TRANSITIONS=248} [2021-03-25 09:30:55,640 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 115 predicate places. [2021-03-25 09:30:55,640 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:30:55,640 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 176 places, 248 transitions, 3958 flow [2021-03-25 09:30:55,640 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 176 places, 248 transitions, 3958 flow [2021-03-25 09:30:55,642 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 176 places, 248 transitions, 3958 flow [2021-03-25 09:30:55,694 INFO L129 PetriNetUnfolder]: 289/621 cut-off events. [2021-03-25 09:30:55,694 INFO L130 PetriNetUnfolder]: For 5787/5791 co-relation queries the response was YES. [2021-03-25 09:30:55,697 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4137 conditions, 621 events. 289/621 cut-off events. For 5787/5791 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3341 event pairs, 10 based on Foata normal form. 0/545 useless extension candidates. Maximal degree in co-relation 4045. Up to 259 conditions per place. [2021-03-25 09:30:55,701 INFO L142 LiptonReduction]: Number of co-enabled transitions 1048 [2021-03-25 09:30:55,736 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 09:30:55,736 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:30:55,737 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 97 [2021-03-25 09:30:55,737 INFO L480 AbstractCegarLoop]: Abstraction has has 176 places, 248 transitions, 3975 flow [2021-03-25 09:30:55,737 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:55,737 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:30:55,737 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:30:55,737 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-03-25 09:30:55,737 INFO L428 AbstractCegarLoop]: === Iteration 33 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:30:55,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:30:55,737 INFO L82 PathProgramCache]: Analyzing trace with hash 959799096, now seen corresponding path program 5 times [2021-03-25 09:30:55,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:30:55,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200028086] [2021-03-25 09:30:55,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:30:55,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:30:55,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:55,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:30:55,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:55,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:30:55,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:55,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:55,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:55,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:55,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:55,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:55,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:55,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:55,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:55,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:55,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:55,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:55,812 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:30:55,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:30:55,825 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:30:55,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:55,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:30:55,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200028086] [2021-03-25 09:30:55,828 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:30:55,828 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:30:55,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505997282] [2021-03-25 09:30:55,828 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:30:55,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:30:55,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:30:55,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:30:55,829 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 102 [2021-03-25 09:30:55,829 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 248 transitions, 3975 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:55,829 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:30:55,829 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 102 [2021-03-25 09:30:55,829 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:30:56,117 INFO L129 PetriNetUnfolder]: 353/727 cut-off events. [2021-03-25 09:30:56,118 INFO L130 PetriNetUnfolder]: For 6572/6602 co-relation queries the response was YES. [2021-03-25 09:30:56,121 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5235 conditions, 727 events. 353/727 cut-off events. For 6572/6602 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3886 event pairs, 14 based on Foata normal form. 17/664 useless extension candidates. Maximal degree in co-relation 5142. Up to 431 conditions per place. [2021-03-25 09:30:56,123 INFO L132 encePairwiseOnDemand]: 83/102 looper letters, 178 selfloop transitions, 69 changer transitions 0/265 dead transitions. [2021-03-25 09:30:56,124 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 265 transitions, 4681 flow [2021-03-25 09:30:56,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:30:56,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:30:56,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 690 transitions. [2021-03-25 09:30:56,125 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5203619909502263 [2021-03-25 09:30:56,125 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 690 transitions. [2021-03-25 09:30:56,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 690 transitions. [2021-03-25 09:30:56,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:30:56,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 690 transitions. [2021-03-25 09:30:56,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 53.07692307692308) internal successors, (690), 13 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:56,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 102.0) internal successors, (1428), 14 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:56,127 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 102.0) internal successors, (1428), 14 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:56,127 INFO L185 Difference]: Start difference. First operand has 176 places, 248 transitions, 3975 flow. Second operand 13 states and 690 transitions. [2021-03-25 09:30:56,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 265 transitions, 4681 flow [2021-03-25 09:30:56,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 265 transitions, 4506 flow, removed 68 selfloop flow, removed 6 redundant places. [2021-03-25 09:30:56,161 INFO L241 Difference]: Finished difference. Result has 184 places, 255 transitions, 4109 flow [2021-03-25 09:30:56,161 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=3800, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4109, PETRI_PLACES=184, PETRI_TRANSITIONS=255} [2021-03-25 09:30:56,162 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 123 predicate places. [2021-03-25 09:30:56,162 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:30:56,162 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 184 places, 255 transitions, 4109 flow [2021-03-25 09:30:56,162 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 184 places, 255 transitions, 4109 flow [2021-03-25 09:30:56,163 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 184 places, 255 transitions, 4109 flow [2021-03-25 09:30:56,210 INFO L129 PetriNetUnfolder]: 313/674 cut-off events. [2021-03-25 09:30:56,210 INFO L130 PetriNetUnfolder]: For 6486/6504 co-relation queries the response was YES. [2021-03-25 09:30:56,213 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4422 conditions, 674 events. 313/674 cut-off events. For 6486/6504 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 3757 event pairs, 13 based on Foata normal form. 0/584 useless extension candidates. Maximal degree in co-relation 4346. Up to 261 conditions per place. [2021-03-25 09:30:56,217 INFO L142 LiptonReduction]: Number of co-enabled transitions 1094 [2021-03-25 09:30:56,251 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 09:30:56,251 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:30:56,252 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 90 [2021-03-25 09:30:56,252 INFO L480 AbstractCegarLoop]: Abstraction has has 184 places, 255 transitions, 4128 flow [2021-03-25 09:30:56,252 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:56,252 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:30:56,252 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:30:56,252 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-03-25 09:30:56,252 INFO L428 AbstractCegarLoop]: === Iteration 34 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:30:56,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:30:56,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1717110942, now seen corresponding path program 6 times [2021-03-25 09:30:56,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:30:56,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005276671] [2021-03-25 09:30:56,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:30:56,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:30:56,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:56,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:30:56,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:56,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:30:56,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:56,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:56,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:56,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:56,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:56,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:56,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:56,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:56,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:56,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:56,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:56,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:56,325 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:30:56,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:30:56,339 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:30:56,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:56,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:30:56,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005276671] [2021-03-25 09:30:56,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:30:56,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:30:56,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972286039] [2021-03-25 09:30:56,341 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:30:56,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:30:56,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:30:56,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:30:56,342 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 103 [2021-03-25 09:30:56,342 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 255 transitions, 4128 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:56,343 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:30:56,343 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 103 [2021-03-25 09:30:56,343 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:30:56,674 INFO L129 PetriNetUnfolder]: 366/764 cut-off events. [2021-03-25 09:30:56,674 INFO L130 PetriNetUnfolder]: For 7171/7179 co-relation queries the response was YES. [2021-03-25 09:30:56,678 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5442 conditions, 764 events. 366/764 cut-off events. For 7171/7179 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 4179 event pairs, 15 based on Foata normal form. 9/682 useless extension candidates. Maximal degree in co-relation 5362. Up to 406 conditions per place. [2021-03-25 09:30:56,680 INFO L132 encePairwiseOnDemand]: 85/103 looper letters, 144 selfloop transitions, 121 changer transitions 0/283 dead transitions. [2021-03-25 09:30:56,680 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 283 transitions, 5017 flow [2021-03-25 09:30:56,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 09:30:56,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 09:30:56,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 804 transitions. [2021-03-25 09:30:56,682 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5203883495145631 [2021-03-25 09:30:56,682 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 804 transitions. [2021-03-25 09:30:56,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 804 transitions. [2021-03-25 09:30:56,682 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:30:56,682 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 804 transitions. [2021-03-25 09:30:56,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 53.6) internal successors, (804), 15 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:56,684 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 103.0) internal successors, (1648), 16 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:56,684 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 103.0) internal successors, (1648), 16 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:56,684 INFO L185 Difference]: Start difference. First operand has 184 places, 255 transitions, 4128 flow. Second operand 15 states and 804 transitions. [2021-03-25 09:30:56,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 283 transitions, 5017 flow [2021-03-25 09:30:56,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 283 transitions, 4796 flow, removed 68 selfloop flow, removed 6 redundant places. [2021-03-25 09:30:56,730 INFO L241 Difference]: Finished difference. Result has 197 places, 269 transitions, 4532 flow [2021-03-25 09:30:56,730 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=3907, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=109, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=4532, PETRI_PLACES=197, PETRI_TRANSITIONS=269} [2021-03-25 09:30:56,730 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 136 predicate places. [2021-03-25 09:30:56,730 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:30:56,730 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 197 places, 269 transitions, 4532 flow [2021-03-25 09:30:56,730 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 197 places, 269 transitions, 4532 flow [2021-03-25 09:30:56,732 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 197 places, 269 transitions, 4532 flow [2021-03-25 09:30:56,782 INFO L129 PetriNetUnfolder]: 326/705 cut-off events. [2021-03-25 09:30:56,782 INFO L130 PetriNetUnfolder]: For 7021/7035 co-relation queries the response was YES. [2021-03-25 09:30:56,786 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4762 conditions, 705 events. 326/705 cut-off events. For 7021/7035 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3971 event pairs, 8 based on Foata normal form. 0/608 useless extension candidates. Maximal degree in co-relation 4679. Up to 264 conditions per place. [2021-03-25 09:30:56,790 INFO L142 LiptonReduction]: Number of co-enabled transitions 1146 [2021-03-25 09:30:56,799 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:30:56,800 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:30:56,800 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 70 [2021-03-25 09:30:56,800 INFO L480 AbstractCegarLoop]: Abstraction has has 197 places, 269 transitions, 4532 flow [2021-03-25 09:30:56,800 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:56,800 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:30:56,800 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:30:56,800 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-03-25 09:30:56,800 INFO L428 AbstractCegarLoop]: === Iteration 35 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:30:56,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:30:56,801 INFO L82 PathProgramCache]: Analyzing trace with hash -1874169860, now seen corresponding path program 7 times [2021-03-25 09:30:56,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:30:56,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358118668] [2021-03-25 09:30:56,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:30:56,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:30:56,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:56,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:30:56,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:56,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:30:56,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:56,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:56,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:56,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:56,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:56,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:56,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:56,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:56,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:56,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:56,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:56,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:56,873 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:30:56,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:30:56,880 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:30:56,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:56,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:30:56,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358118668] [2021-03-25 09:30:56,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:30:56,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:30:56,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16280149] [2021-03-25 09:30:56,882 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:30:56,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:30:56,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:30:56,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:30:56,883 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 103 [2021-03-25 09:30:56,883 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 269 transitions, 4532 flow. Second operand has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:56,883 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:30:56,883 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 103 [2021-03-25 09:30:56,883 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:30:57,202 INFO L129 PetriNetUnfolder]: 371/781 cut-off events. [2021-03-25 09:30:57,202 INFO L130 PetriNetUnfolder]: For 8188/8230 co-relation queries the response was YES. [2021-03-25 09:30:57,206 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5698 conditions, 781 events. 371/781 cut-off events. For 8188/8230 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 4325 event pairs, 16 based on Foata normal form. 30/715 useless extension candidates. Maximal degree in co-relation 5611. Up to 440 conditions per place. [2021-03-25 09:30:57,209 INFO L132 encePairwiseOnDemand]: 85/103 looper letters, 187 selfloop transitions, 79 changer transitions 0/284 dead transitions. [2021-03-25 09:30:57,209 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 284 transitions, 5184 flow [2021-03-25 09:30:57,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:30:57,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:30:57,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 708 transitions. [2021-03-25 09:30:57,210 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5287528005974608 [2021-03-25 09:30:57,210 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 708 transitions. [2021-03-25 09:30:57,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 708 transitions. [2021-03-25 09:30:57,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:30:57,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 708 transitions. [2021-03-25 09:30:57,211 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 54.46153846153846) internal successors, (708), 13 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:57,212 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 103.0) internal successors, (1442), 14 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:57,212 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 103.0) internal successors, (1442), 14 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:57,212 INFO L185 Difference]: Start difference. First operand has 197 places, 269 transitions, 4532 flow. Second operand 13 states and 708 transitions. [2021-03-25 09:30:57,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 284 transitions, 5184 flow [2021-03-25 09:30:57,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 284 transitions, 5041 flow, removed 32 selfloop flow, removed 8 redundant places. [2021-03-25 09:30:57,253 INFO L241 Difference]: Finished difference. Result has 204 places, 272 transitions, 4643 flow [2021-03-25 09:30:57,253 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=4389, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4643, PETRI_PLACES=204, PETRI_TRANSITIONS=272} [2021-03-25 09:30:57,253 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 143 predicate places. [2021-03-25 09:30:57,254 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:30:57,254 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 204 places, 272 transitions, 4643 flow [2021-03-25 09:30:57,254 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 204 places, 272 transitions, 4643 flow [2021-03-25 09:30:57,255 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 204 places, 272 transitions, 4643 flow [2021-03-25 09:30:57,307 INFO L129 PetriNetUnfolder]: 316/702 cut-off events. [2021-03-25 09:30:57,307 INFO L130 PetriNetUnfolder]: For 6751/6755 co-relation queries the response was YES. [2021-03-25 09:30:57,310 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4747 conditions, 702 events. 316/702 cut-off events. For 6751/6755 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 4044 event pairs, 7 based on Foata normal form. 0/603 useless extension candidates. Maximal degree in co-relation 4661. Up to 257 conditions per place. [2021-03-25 09:30:57,315 INFO L142 LiptonReduction]: Number of co-enabled transitions 1170 [2021-03-25 09:30:57,325 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:30:57,325 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:30:57,325 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 71 [2021-03-25 09:30:57,325 INFO L480 AbstractCegarLoop]: Abstraction has has 204 places, 272 transitions, 4643 flow [2021-03-25 09:30:57,325 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:57,325 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:30:57,325 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:30:57,325 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-03-25 09:30:57,325 INFO L428 AbstractCegarLoop]: === Iteration 36 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:30:57,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:30:57,326 INFO L82 PathProgramCache]: Analyzing trace with hash 931431848, now seen corresponding path program 8 times [2021-03-25 09:30:57,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:30:57,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761912713] [2021-03-25 09:30:57,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:30:57,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:30:57,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:57,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:30:57,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:57,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:30:57,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:57,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:57,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:57,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:57,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:57,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:57,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:57,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:57,376 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:30:57,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:30:57,378 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:30:57,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:30:57,388 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:30:57,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:30:57,400 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:30:57,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:57,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:30:57,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761912713] [2021-03-25 09:30:57,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:30:57,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:30:57,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784363640] [2021-03-25 09:30:57,403 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:30:57,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:30:57,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:30:57,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:30:57,403 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 103 [2021-03-25 09:30:57,404 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 272 transitions, 4643 flow. Second operand has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:57,404 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:30:57,404 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 103 [2021-03-25 09:30:57,404 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:30:57,624 INFO L129 PetriNetUnfolder]: 374/794 cut-off events. [2021-03-25 09:30:57,624 INFO L130 PetriNetUnfolder]: For 8387/8395 co-relation queries the response was YES. [2021-03-25 09:30:57,629 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5833 conditions, 794 events. 374/794 cut-off events. For 8387/8395 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 4444 event pairs, 15 based on Foata normal form. 9/704 useless extension candidates. Maximal degree in co-relation 5743. Up to 483 conditions per place. [2021-03-25 09:30:57,645 INFO L132 encePairwiseOnDemand]: 86/103 looper letters, 231 selfloop transitions, 32 changer transitions 2/283 dead transitions. [2021-03-25 09:30:57,645 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 283 transitions, 5304 flow [2021-03-25 09:30:57,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:30:57,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:30:57,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 532 transitions. [2021-03-25 09:30:57,647 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.516504854368932 [2021-03-25 09:30:57,647 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 532 transitions. [2021-03-25 09:30:57,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 532 transitions. [2021-03-25 09:30:57,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:30:57,647 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 532 transitions. [2021-03-25 09:30:57,647 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 53.2) internal successors, (532), 10 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:57,648 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:57,648 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:57,648 INFO L185 Difference]: Start difference. First operand has 204 places, 272 transitions, 4643 flow. Second operand 10 states and 532 transitions. [2021-03-25 09:30:57,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 283 transitions, 5304 flow [2021-03-25 09:30:57,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 283 transitions, 5172 flow, removed 9 selfloop flow, removed 9 redundant places. [2021-03-25 09:30:57,699 INFO L241 Difference]: Finished difference. Result has 206 places, 274 transitions, 4640 flow [2021-03-25 09:30:57,699 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=4511, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4640, PETRI_PLACES=206, PETRI_TRANSITIONS=274} [2021-03-25 09:30:57,699 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 145 predicate places. [2021-03-25 09:30:57,699 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:30:57,699 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 206 places, 274 transitions, 4640 flow [2021-03-25 09:30:57,699 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 206 places, 274 transitions, 4640 flow [2021-03-25 09:30:57,701 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 205 places, 274 transitions, 4640 flow [2021-03-25 09:30:57,762 INFO L129 PetriNetUnfolder]: 311/688 cut-off events. [2021-03-25 09:30:57,763 INFO L130 PetriNetUnfolder]: For 7561/7565 co-relation queries the response was YES. [2021-03-25 09:30:57,767 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4768 conditions, 688 events. 311/688 cut-off events. For 7561/7565 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 3923 event pairs, 12 based on Foata normal form. 0/597 useless extension candidates. Maximal degree in co-relation 4679. Up to 259 conditions per place. [2021-03-25 09:30:57,773 INFO L142 LiptonReduction]: Number of co-enabled transitions 1170 [2021-03-25 09:30:57,783 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:30:57,783 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:30:57,784 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 85 [2021-03-25 09:30:57,784 INFO L480 AbstractCegarLoop]: Abstraction has has 205 places, 274 transitions, 4640 flow [2021-03-25 09:30:57,784 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:57,784 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:30:57,784 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:30:57,784 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-03-25 09:30:57,784 INFO L428 AbstractCegarLoop]: === Iteration 37 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:30:57,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:30:57,785 INFO L82 PathProgramCache]: Analyzing trace with hash 1743682826, now seen corresponding path program 9 times [2021-03-25 09:30:57,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:30:57,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904680530] [2021-03-25 09:30:57,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:30:57,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:30:57,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:57,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:30:57,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:57,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:30:57,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:57,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:57,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:57,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:57,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:57,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:57,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:57,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:57,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:57,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:57,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:57,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:57,861 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:30:57,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:30:57,875 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:30:57,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:57,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:30:57,878 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904680530] [2021-03-25 09:30:57,878 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:30:57,878 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:30:57,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105019689] [2021-03-25 09:30:57,878 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:30:57,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:30:57,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:30:57,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:30:57,879 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 103 [2021-03-25 09:30:57,880 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 274 transitions, 4640 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:57,880 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:30:57,880 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 103 [2021-03-25 09:30:57,880 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:30:58,214 INFO L129 PetriNetUnfolder]: 371/788 cut-off events. [2021-03-25 09:30:58,214 INFO L130 PetriNetUnfolder]: For 8850/8858 co-relation queries the response was YES. [2021-03-25 09:30:58,219 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5868 conditions, 788 events. 371/788 cut-off events. For 8850/8858 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 4410 event pairs, 15 based on Foata normal form. 9/701 useless extension candidates. Maximal degree in co-relation 5775. Up to 461 conditions per place. [2021-03-25 09:30:58,221 INFO L132 encePairwiseOnDemand]: 85/103 looper letters, 206 selfloop transitions, 65 changer transitions 0/289 dead transitions. [2021-03-25 09:30:58,221 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 289 transitions, 5358 flow [2021-03-25 09:30:58,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:30:58,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:30:58,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 743 transitions. [2021-03-25 09:30:58,222 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.515256588072122 [2021-03-25 09:30:58,222 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 743 transitions. [2021-03-25 09:30:58,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 743 transitions. [2021-03-25 09:30:58,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:30:58,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 743 transitions. [2021-03-25 09:30:58,223 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 53.07142857142857) internal successors, (743), 14 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:58,224 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 103.0) internal successors, (1545), 15 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:58,224 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 103.0) internal successors, (1545), 15 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:58,224 INFO L185 Difference]: Start difference. First operand has 205 places, 274 transitions, 4640 flow. Second operand 14 states and 743 transitions. [2021-03-25 09:30:58,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 289 transitions, 5358 flow [2021-03-25 09:30:58,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 289 transitions, 5259 flow, removed 15 selfloop flow, removed 9 redundant places. [2021-03-25 09:30:58,276 INFO L241 Difference]: Finished difference. Result has 214 places, 280 transitions, 4875 flow [2021-03-25 09:30:58,276 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=4541, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=4875, PETRI_PLACES=214, PETRI_TRANSITIONS=280} [2021-03-25 09:30:58,276 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 153 predicate places. [2021-03-25 09:30:58,276 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:30:58,276 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 214 places, 280 transitions, 4875 flow [2021-03-25 09:30:58,276 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 214 places, 280 transitions, 4875 flow [2021-03-25 09:30:58,278 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 214 places, 280 transitions, 4875 flow [2021-03-25 09:30:58,332 INFO L129 PetriNetUnfolder]: 318/715 cut-off events. [2021-03-25 09:30:58,332 INFO L130 PetriNetUnfolder]: For 7975/7979 co-relation queries the response was YES. [2021-03-25 09:30:58,336 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4900 conditions, 715 events. 318/715 cut-off events. For 7975/7979 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 4171 event pairs, 8 based on Foata normal form. 0/614 useless extension candidates. Maximal degree in co-relation 4807. Up to 259 conditions per place. [2021-03-25 09:30:58,341 INFO L142 LiptonReduction]: Number of co-enabled transitions 1230 [2021-03-25 09:30:58,385 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:30:58,386 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:30:58,386 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 110 [2021-03-25 09:30:58,386 INFO L480 AbstractCegarLoop]: Abstraction has has 214 places, 280 transitions, 4884 flow [2021-03-25 09:30:58,386 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:58,386 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:30:58,386 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:30:58,386 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-03-25 09:30:58,386 INFO L428 AbstractCegarLoop]: === Iteration 38 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:30:58,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:30:58,387 INFO L82 PathProgramCache]: Analyzing trace with hash -2037434614, now seen corresponding path program 10 times [2021-03-25 09:30:58,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:30:58,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446207516] [2021-03-25 09:30:58,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:30:58,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:30:58,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:58,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:30:58,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:58,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:30:58,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:58,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:58,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:58,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:58,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:58,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:58,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:58,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:58,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:58,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:58,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:58,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:58,460 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:30:58,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:30:58,474 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:30:58,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:58,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:30:58,476 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446207516] [2021-03-25 09:30:58,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:30:58,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:30:58,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865023598] [2021-03-25 09:30:58,477 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:30:58,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:30:58,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:30:58,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:30:58,477 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 104 [2021-03-25 09:30:58,477 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 280 transitions, 4884 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:58,477 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:30:58,478 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 104 [2021-03-25 09:30:58,478 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:30:58,826 INFO L129 PetriNetUnfolder]: 374/802 cut-off events. [2021-03-25 09:30:58,826 INFO L130 PetriNetUnfolder]: For 9058/9066 co-relation queries the response was YES. [2021-03-25 09:30:58,831 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5975 conditions, 802 events. 374/802 cut-off events. For 9058/9066 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 4537 event pairs, 15 based on Foata normal form. 9/711 useless extension candidates. Maximal degree in co-relation 5878. Up to 462 conditions per place. [2021-03-25 09:30:58,833 INFO L132 encePairwiseOnDemand]: 85/104 looper letters, 208 selfloop transitions, 63 changer transitions 5/294 dead transitions. [2021-03-25 09:30:58,834 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 294 transitions, 5538 flow [2021-03-25 09:30:58,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:30:58,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:30:58,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 754 transitions. [2021-03-25 09:30:58,835 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5178571428571429 [2021-03-25 09:30:58,835 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 754 transitions. [2021-03-25 09:30:58,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 754 transitions. [2021-03-25 09:30:58,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:30:58,835 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 754 transitions. [2021-03-25 09:30:58,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 53.857142857142854) internal successors, (754), 14 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:58,836 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 104.0) internal successors, (1560), 15 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:58,837 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 104.0) internal successors, (1560), 15 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:58,837 INFO L185 Difference]: Start difference. First operand has 214 places, 280 transitions, 4884 flow. Second operand 14 states and 754 transitions. [2021-03-25 09:30:58,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 294 transitions, 5538 flow [2021-03-25 09:30:58,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 294 transitions, 5417 flow, removed 20 selfloop flow, removed 8 redundant places. [2021-03-25 09:30:58,922 INFO L241 Difference]: Finished difference. Result has 221 places, 276 transitions, 4817 flow [2021-03-25 09:30:58,922 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=4763, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=280, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=4817, PETRI_PLACES=221, PETRI_TRANSITIONS=276} [2021-03-25 09:30:58,922 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 160 predicate places. [2021-03-25 09:30:58,922 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:30:58,922 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 221 places, 276 transitions, 4817 flow [2021-03-25 09:30:58,922 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 221 places, 276 transitions, 4817 flow [2021-03-25 09:30:58,924 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 221 places, 276 transitions, 4817 flow [2021-03-25 09:30:58,978 INFO L129 PetriNetUnfolder]: 312/702 cut-off events. [2021-03-25 09:30:58,978 INFO L130 PetriNetUnfolder]: For 7972/7976 co-relation queries the response was YES. [2021-03-25 09:30:58,982 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4880 conditions, 702 events. 312/702 cut-off events. For 7972/7976 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 4081 event pairs, 8 based on Foata normal form. 0/605 useless extension candidates. Maximal degree in co-relation 4784. Up to 255 conditions per place. [2021-03-25 09:30:58,986 INFO L142 LiptonReduction]: Number of co-enabled transitions 1190 [2021-03-25 09:30:58,996 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:30:58,996 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:30:58,997 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 75 [2021-03-25 09:30:58,997 INFO L480 AbstractCegarLoop]: Abstraction has has 221 places, 276 transitions, 4817 flow [2021-03-25 09:30:58,997 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:58,997 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:30:58,997 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:30:58,997 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-03-25 09:30:58,997 INFO L428 AbstractCegarLoop]: === Iteration 39 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:30:58,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:30:58,997 INFO L82 PathProgramCache]: Analyzing trace with hash 1112410662, now seen corresponding path program 1 times [2021-03-25 09:30:58,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:30:58,998 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297800761] [2021-03-25 09:30:58,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:30:59,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:30:59,008 INFO L142 QuantifierPusher]: treesize reduction 28, result has 20.0 percent of original size [2021-03-25 09:30:59,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:30:59,012 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 09:30:59,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:30:59,017 INFO L142 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size [2021-03-25 09:30:59,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:59,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:59,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:30:59,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:59,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:59,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:59,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:59,052 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:30:59,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:30:59,065 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:30:59,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:30:59,078 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:30:59,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:59,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:30:59,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297800761] [2021-03-25 09:30:59,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:30:59,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:30:59,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117911178] [2021-03-25 09:30:59,081 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:30:59,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:30:59,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:30:59,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:30:59,081 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 104 [2021-03-25 09:30:59,082 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 276 transitions, 4817 flow. Second operand has 10 states, 10 states have (on average 49.1) internal successors, (491), 10 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:59,082 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:30:59,082 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 104 [2021-03-25 09:30:59,082 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:30:59,357 INFO L129 PetriNetUnfolder]: 375/802 cut-off events. [2021-03-25 09:30:59,357 INFO L130 PetriNetUnfolder]: For 9291/9299 co-relation queries the response was YES. [2021-03-25 09:30:59,361 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6046 conditions, 802 events. 375/802 cut-off events. For 9291/9299 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 4525 event pairs, 15 based on Foata normal form. 9/712 useless extension candidates. Maximal degree in co-relation 5946. Up to 471 conditions per place. [2021-03-25 09:30:59,364 INFO L132 encePairwiseOnDemand]: 84/104 looper letters, 232 selfloop transitions, 35 changer transitions 9/294 dead transitions. [2021-03-25 09:30:59,364 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 294 transitions, 5598 flow [2021-03-25 09:30:59,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:30:59,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:30:59,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 586 transitions. [2021-03-25 09:30:59,365 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5122377622377622 [2021-03-25 09:30:59,365 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 586 transitions. [2021-03-25 09:30:59,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 586 transitions. [2021-03-25 09:30:59,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:30:59,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 586 transitions. [2021-03-25 09:30:59,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 53.27272727272727) internal successors, (586), 11 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:59,366 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 104.0) internal successors, (1248), 12 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:59,367 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 104.0) internal successors, (1248), 12 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:59,367 INFO L185 Difference]: Start difference. First operand has 221 places, 276 transitions, 4817 flow. Second operand 11 states and 586 transitions. [2021-03-25 09:30:59,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 294 transitions, 5598 flow [2021-03-25 09:30:59,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 294 transitions, 5418 flow, removed 5 selfloop flow, removed 17 redundant places. [2021-03-25 09:30:59,425 INFO L241 Difference]: Finished difference. Result has 218 places, 276 transitions, 4821 flow [2021-03-25 09:30:59,425 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=4639, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4821, PETRI_PLACES=218, PETRI_TRANSITIONS=276} [2021-03-25 09:30:59,425 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 157 predicate places. [2021-03-25 09:30:59,425 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:30:59,425 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 218 places, 276 transitions, 4821 flow [2021-03-25 09:30:59,425 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 218 places, 276 transitions, 4821 flow [2021-03-25 09:30:59,427 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 212 places, 276 transitions, 4821 flow [2021-03-25 09:30:59,482 INFO L129 PetriNetUnfolder]: 318/695 cut-off events. [2021-03-25 09:30:59,482 INFO L130 PetriNetUnfolder]: For 8688/8702 co-relation queries the response was YES. [2021-03-25 09:30:59,486 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5042 conditions, 695 events. 318/695 cut-off events. For 8688/8702 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 3958 event pairs, 10 based on Foata normal form. 0/603 useless extension candidates. Maximal degree in co-relation 4953. Up to 264 conditions per place. [2021-03-25 09:30:59,491 INFO L142 LiptonReduction]: Number of co-enabled transitions 1156 [2021-03-25 09:30:59,501 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:30:59,501 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:30:59,501 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 76 [2021-03-25 09:30:59,501 INFO L480 AbstractCegarLoop]: Abstraction has has 212 places, 276 transitions, 4821 flow [2021-03-25 09:30:59,501 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.1) internal successors, (491), 10 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:59,501 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:30:59,501 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:30:59,501 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-03-25 09:30:59,501 INFO L428 AbstractCegarLoop]: === Iteration 40 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:30:59,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:30:59,502 INFO L82 PathProgramCache]: Analyzing trace with hash -25922976, now seen corresponding path program 11 times [2021-03-25 09:30:59,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:30:59,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314965818] [2021-03-25 09:30:59,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:30:59,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:30:59,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:59,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:30:59,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:59,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:30:59,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:59,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:59,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:59,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:59,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:59,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:59,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:59,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:30:59,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:30:59,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:59,563 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:30:59,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:30:59,576 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:30:59,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:30:59,590 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:30:59,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:30:59,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:30:59,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314965818] [2021-03-25 09:30:59,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:30:59,592 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:30:59,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891137402] [2021-03-25 09:30:59,592 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:30:59,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:30:59,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:30:59,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:30:59,593 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 104 [2021-03-25 09:30:59,593 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 276 transitions, 4821 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:59,593 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:30:59,593 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 104 [2021-03-25 09:30:59,593 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:30:59,971 INFO L129 PetriNetUnfolder]: 391/823 cut-off events. [2021-03-25 09:30:59,971 INFO L130 PetriNetUnfolder]: For 10643/10685 co-relation queries the response was YES. [2021-03-25 09:30:59,976 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6522 conditions, 823 events. 391/823 cut-off events. For 10643/10685 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 4575 event pairs, 16 based on Foata normal form. 30/755 useless extension candidates. Maximal degree in co-relation 6431. Up to 463 conditions per place. [2021-03-25 09:30:59,979 INFO L132 encePairwiseOnDemand]: 86/104 looper letters, 191 selfloop transitions, 105 changer transitions 2/316 dead transitions. [2021-03-25 09:30:59,979 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 316 transitions, 6196 flow [2021-03-25 09:30:59,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:30:59,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:30:59,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 760 transitions. [2021-03-25 09:30:59,980 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.521978021978022 [2021-03-25 09:30:59,980 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 760 transitions. [2021-03-25 09:30:59,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 760 transitions. [2021-03-25 09:30:59,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:30:59,980 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 760 transitions. [2021-03-25 09:30:59,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 54.285714285714285) internal successors, (760), 14 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:59,982 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 104.0) internal successors, (1560), 15 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:59,982 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 104.0) internal successors, (1560), 15 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:30:59,982 INFO L185 Difference]: Start difference. First operand has 212 places, 276 transitions, 4821 flow. Second operand 14 states and 760 transitions. [2021-03-25 09:30:59,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 316 transitions, 6196 flow [2021-03-25 09:31:00,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 316 transitions, 6053 flow, removed 46 selfloop flow, removed 9 redundant places. [2021-03-25 09:31:00,045 INFO L241 Difference]: Finished difference. Result has 219 places, 305 transitions, 5684 flow [2021-03-25 09:31:00,045 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=4678, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=5684, PETRI_PLACES=219, PETRI_TRANSITIONS=305} [2021-03-25 09:31:00,045 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 158 predicate places. [2021-03-25 09:31:00,045 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:00,045 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 219 places, 305 transitions, 5684 flow [2021-03-25 09:31:00,046 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 219 places, 305 transitions, 5684 flow [2021-03-25 09:31:00,048 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 219 places, 305 transitions, 5684 flow [2021-03-25 09:31:00,112 INFO L129 PetriNetUnfolder]: 339/743 cut-off events. [2021-03-25 09:31:00,112 INFO L130 PetriNetUnfolder]: For 9423/9437 co-relation queries the response was YES. [2021-03-25 09:31:00,116 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5660 conditions, 743 events. 339/743 cut-off events. For 9423/9437 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 4272 event pairs, 9 based on Foata normal form. 0/646 useless extension candidates. Maximal degree in co-relation 5563. Up to 279 conditions per place. [2021-03-25 09:31:00,121 INFO L142 LiptonReduction]: Number of co-enabled transitions 1230 [2021-03-25 09:31:00,132 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:00,132 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:00,132 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 87 [2021-03-25 09:31:00,133 INFO L480 AbstractCegarLoop]: Abstraction has has 219 places, 305 transitions, 5684 flow [2021-03-25 09:31:00,133 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:00,133 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:00,133 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:00,133 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-03-25 09:31:00,133 INFO L428 AbstractCegarLoop]: === Iteration 41 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:00,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:00,133 INFO L82 PathProgramCache]: Analyzing trace with hash 399945504, now seen corresponding path program 12 times [2021-03-25 09:31:00,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:00,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263680257] [2021-03-25 09:31:00,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:00,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:00,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:00,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:00,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:00,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:00,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:00,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:00,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:00,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:00,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:00,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:00,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:00,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:00,185 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 09:31:00,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:31:00,188 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:31:00,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:00,200 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:31:00,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:00,212 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:31:00,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:00,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:00,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263680257] [2021-03-25 09:31:00,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:00,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:31:00,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608362701] [2021-03-25 09:31:00,214 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:31:00,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:00,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:31:00,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:31:00,215 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 104 [2021-03-25 09:31:00,215 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 305 transitions, 5684 flow. Second operand has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:00,215 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:00,215 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 104 [2021-03-25 09:31:00,216 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:00,499 INFO L129 PetriNetUnfolder]: 403/863 cut-off events. [2021-03-25 09:31:00,499 INFO L130 PetriNetUnfolder]: For 11555/11631 co-relation queries the response was YES. [2021-03-25 09:31:00,504 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6881 conditions, 863 events. 403/863 cut-off events. For 11555/11631 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 4911 event pairs, 16 based on Foata normal form. 32/788 useless extension candidates. Maximal degree in co-relation 6780. Up to 476 conditions per place. [2021-03-25 09:31:00,507 INFO L132 encePairwiseOnDemand]: 85/104 looper letters, 222 selfloop transitions, 85 changer transitions 1/326 dead transitions. [2021-03-25 09:31:00,507 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 326 transitions, 6640 flow [2021-03-25 09:31:00,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:31:00,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:31:00,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 600 transitions. [2021-03-25 09:31:00,508 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5244755244755245 [2021-03-25 09:31:00,508 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 600 transitions. [2021-03-25 09:31:00,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 600 transitions. [2021-03-25 09:31:00,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:00,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 600 transitions. [2021-03-25 09:31:00,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 54.54545454545455) internal successors, (600), 11 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:00,509 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 104.0) internal successors, (1248), 12 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:00,509 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 104.0) internal successors, (1248), 12 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:00,510 INFO L185 Difference]: Start difference. First operand has 219 places, 305 transitions, 5684 flow. Second operand 11 states and 600 transitions. [2021-03-25 09:31:00,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 326 transitions, 6640 flow [2021-03-25 09:31:00,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 326 transitions, 6507 flow, removed 50 selfloop flow, removed 4 redundant places. [2021-03-25 09:31:00,582 INFO L241 Difference]: Finished difference. Result has 228 places, 314 transitions, 6032 flow [2021-03-25 09:31:00,582 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=5551, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=6032, PETRI_PLACES=228, PETRI_TRANSITIONS=314} [2021-03-25 09:31:00,582 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 167 predicate places. [2021-03-25 09:31:00,582 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:00,582 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 228 places, 314 transitions, 6032 flow [2021-03-25 09:31:00,582 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 228 places, 314 transitions, 6032 flow [2021-03-25 09:31:00,584 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 228 places, 314 transitions, 6032 flow [2021-03-25 09:31:00,649 INFO L129 PetriNetUnfolder]: 355/787 cut-off events. [2021-03-25 09:31:00,649 INFO L130 PetriNetUnfolder]: For 11353/11367 co-relation queries the response was YES. [2021-03-25 09:31:00,654 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6042 conditions, 787 events. 355/787 cut-off events. For 11353/11367 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 4655 event pairs, 8 based on Foata normal form. 0/678 useless extension candidates. Maximal degree in co-relation 5940. Up to 291 conditions per place. [2021-03-25 09:31:00,659 INFO L142 LiptonReduction]: Number of co-enabled transitions 1308 [2021-03-25 09:31:00,702 INFO L154 LiptonReduction]: Checked pairs total: 5 [2021-03-25 09:31:00,702 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:31:00,702 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 120 [2021-03-25 09:31:00,702 INFO L480 AbstractCegarLoop]: Abstraction has has 228 places, 314 transitions, 6059 flow [2021-03-25 09:31:00,702 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:00,702 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:00,702 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:00,702 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-03-25 09:31:00,702 INFO L428 AbstractCegarLoop]: === Iteration 42 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:00,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:00,703 INFO L82 PathProgramCache]: Analyzing trace with hash -973997932, now seen corresponding path program 13 times [2021-03-25 09:31:00,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:00,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884738592] [2021-03-25 09:31:00,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:00,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:00,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:00,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:00,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:00,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:00,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:00,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:00,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:00,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:00,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:00,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:00,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:00,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:00,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:00,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:00,762 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:31:00,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:00,773 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:31:00,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:00,787 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:31:00,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:00,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:00,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884738592] [2021-03-25 09:31:00,789 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:00,789 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:31:00,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501660167] [2021-03-25 09:31:00,790 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:31:00,790 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:00,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:31:00,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:31:00,790 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 105 [2021-03-25 09:31:00,791 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 314 transitions, 6059 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:00,791 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:00,791 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 105 [2021-03-25 09:31:00,791 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:01,134 INFO L129 PetriNetUnfolder]: 409/892 cut-off events. [2021-03-25 09:31:01,134 INFO L130 PetriNetUnfolder]: For 12745/12753 co-relation queries the response was YES. [2021-03-25 09:31:01,139 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7204 conditions, 892 events. 409/892 cut-off events. For 12745/12753 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 5216 event pairs, 15 based on Foata normal form. 9/787 useless extension candidates. Maximal degree in co-relation 7091. Up to 447 conditions per place. [2021-03-25 09:31:01,142 INFO L132 encePairwiseOnDemand]: 84/105 looper letters, 206 selfloop transitions, 99 changer transitions 9/332 dead transitions. [2021-03-25 09:31:01,143 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 332 transitions, 6933 flow [2021-03-25 09:31:01,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:31:01,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:31:01,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 654 transitions. [2021-03-25 09:31:01,143 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5190476190476191 [2021-03-25 09:31:01,144 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 654 transitions. [2021-03-25 09:31:01,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 654 transitions. [2021-03-25 09:31:01,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:01,144 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 654 transitions. [2021-03-25 09:31:01,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 54.5) internal successors, (654), 12 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:01,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 105.0) internal successors, (1365), 13 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:01,145 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 105.0) internal successors, (1365), 13 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:01,145 INFO L185 Difference]: Start difference. First operand has 228 places, 314 transitions, 6059 flow. Second operand 12 states and 654 transitions. [2021-03-25 09:31:01,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 332 transitions, 6933 flow [2021-03-25 09:31:01,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 332 transitions, 6649 flow, removed 109 selfloop flow, removed 5 redundant places. [2021-03-25 09:31:01,257 INFO L241 Difference]: Finished difference. Result has 237 places, 310 transitions, 6014 flow [2021-03-25 09:31:01,257 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=5775, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=314, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=97, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=6014, PETRI_PLACES=237, PETRI_TRANSITIONS=310} [2021-03-25 09:31:01,257 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 176 predicate places. [2021-03-25 09:31:01,257 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:01,257 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 237 places, 310 transitions, 6014 flow [2021-03-25 09:31:01,258 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 237 places, 310 transitions, 6014 flow [2021-03-25 09:31:01,259 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 233 places, 310 transitions, 6014 flow [2021-03-25 09:31:01,325 INFO L129 PetriNetUnfolder]: 348/777 cut-off events. [2021-03-25 09:31:01,325 INFO L130 PetriNetUnfolder]: For 11893/11915 co-relation queries the response was YES. [2021-03-25 09:31:01,330 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6074 conditions, 777 events. 348/777 cut-off events. For 11893/11915 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 4610 event pairs, 8 based on Foata normal form. 0/668 useless extension candidates. Maximal degree in co-relation 5975. Up to 280 conditions per place. [2021-03-25 09:31:01,336 INFO L142 LiptonReduction]: Number of co-enabled transitions 1288 [2021-03-25 09:31:01,348 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:01,348 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:01,348 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 91 [2021-03-25 09:31:01,348 INFO L480 AbstractCegarLoop]: Abstraction has has 233 places, 310 transitions, 6014 flow [2021-03-25 09:31:01,348 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:01,348 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:01,348 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:01,348 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-03-25 09:31:01,348 INFO L428 AbstractCegarLoop]: === Iteration 43 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:01,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:01,349 INFO L82 PathProgramCache]: Analyzing trace with hash -1418743830, now seen corresponding path program 1 times [2021-03-25 09:31:01,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:01,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504371870] [2021-03-25 09:31:01,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:01,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:01,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:01,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:01,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:01,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:01,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:01,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:01,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:01,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:01,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:01,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:01,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:01,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:31:01,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:01,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:01,390 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:31:01,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:31:01,392 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:01,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:01,403 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:31:01,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:01,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:01,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504371870] [2021-03-25 09:31:01,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:01,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 09:31:01,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802388149] [2021-03-25 09:31:01,405 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 09:31:01,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:01,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 09:31:01,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-03-25 09:31:01,406 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 105 [2021-03-25 09:31:01,406 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 310 transitions, 6014 flow. Second operand has 8 states, 8 states have (on average 49.5) internal successors, (396), 8 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:01,406 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:01,406 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 105 [2021-03-25 09:31:01,406 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:01,651 INFO L129 PetriNetUnfolder]: 416/897 cut-off events. [2021-03-25 09:31:01,651 INFO L130 PetriNetUnfolder]: For 14203/14245 co-relation queries the response was YES. [2021-03-25 09:31:01,657 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7383 conditions, 897 events. 416/897 cut-off events. For 14203/14245 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 5218 event pairs, 17 based on Foata normal form. 23/806 useless extension candidates. Maximal degree in co-relation 7282. Up to 490 conditions per place. [2021-03-25 09:31:01,660 INFO L132 encePairwiseOnDemand]: 86/105 looper letters, 238 selfloop transitions, 79 changer transitions 0/335 dead transitions. [2021-03-25 09:31:01,660 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 335 transitions, 7007 flow [2021-03-25 09:31:01,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 09:31:01,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 09:31:01,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 455 transitions. [2021-03-25 09:31:01,661 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5416666666666666 [2021-03-25 09:31:01,661 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 455 transitions. [2021-03-25 09:31:01,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 455 transitions. [2021-03-25 09:31:01,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:01,661 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 455 transitions. [2021-03-25 09:31:01,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 56.875) internal successors, (455), 8 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:01,662 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:01,662 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 105.0) internal successors, (945), 9 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:01,662 INFO L185 Difference]: Start difference. First operand has 233 places, 310 transitions, 6014 flow. Second operand 8 states and 455 transitions. [2021-03-25 09:31:01,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 335 transitions, 7007 flow [2021-03-25 09:31:01,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 335 transitions, 6816 flow, removed 32 selfloop flow, removed 11 redundant places. [2021-03-25 09:31:01,746 INFO L241 Difference]: Finished difference. Result has 232 places, 321 transitions, 6275 flow [2021-03-25 09:31:01,746 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=5830, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=6275, PETRI_PLACES=232, PETRI_TRANSITIONS=321} [2021-03-25 09:31:01,746 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 171 predicate places. [2021-03-25 09:31:01,747 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:01,747 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 232 places, 321 transitions, 6275 flow [2021-03-25 09:31:01,747 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 232 places, 321 transitions, 6275 flow [2021-03-25 09:31:01,749 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 232 places, 321 transitions, 6275 flow [2021-03-25 09:31:01,820 INFO L129 PetriNetUnfolder]: 368/846 cut-off events. [2021-03-25 09:31:01,820 INFO L130 PetriNetUnfolder]: For 12283/12311 co-relation queries the response was YES. [2021-03-25 09:31:01,825 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6460 conditions, 846 events. 368/846 cut-off events. For 12283/12311 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 5122 event pairs, 4 based on Foata normal form. 3/723 useless extension candidates. Maximal degree in co-relation 6307. Up to 285 conditions per place. [2021-03-25 09:31:01,831 INFO L142 LiptonReduction]: Number of co-enabled transitions 1330 [2021-03-25 09:31:01,844 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:01,844 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:01,844 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 97 [2021-03-25 09:31:01,845 INFO L480 AbstractCegarLoop]: Abstraction has has 232 places, 321 transitions, 6275 flow [2021-03-25 09:31:01,845 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 49.5) internal successors, (396), 8 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:01,845 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:01,845 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:01,845 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-03-25 09:31:01,845 INFO L428 AbstractCegarLoop]: === Iteration 44 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:01,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:01,845 INFO L82 PathProgramCache]: Analyzing trace with hash 579056158, now seen corresponding path program 14 times [2021-03-25 09:31:01,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:01,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497617319] [2021-03-25 09:31:01,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:01,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:01,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:01,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:01,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:01,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:01,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:01,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:01,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:01,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:01,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:01,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:01,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:01,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:01,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:01,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:01,906 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:31:01,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:31:01,918 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:01,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:01,932 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:31:01,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:01,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:01,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497617319] [2021-03-25 09:31:01,934 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:01,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:31:01,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7369100] [2021-03-25 09:31:01,935 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:31:01,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:01,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:31:01,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:31:01,935 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 105 [2021-03-25 09:31:01,936 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 321 transitions, 6275 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:01,936 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:01,936 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 105 [2021-03-25 09:31:01,936 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:02,249 INFO L129 PetriNetUnfolder]: 421/914 cut-off events. [2021-03-25 09:31:02,250 INFO L130 PetriNetUnfolder]: For 14776/14818 co-relation queries the response was YES. [2021-03-25 09:31:02,256 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7605 conditions, 914 events. 421/914 cut-off events. For 14776/14818 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 5362 event pairs, 17 based on Foata normal form. 30/825 useless extension candidates. Maximal degree in co-relation 7451. Up to 533 conditions per place. [2021-03-25 09:31:02,259 INFO L132 encePairwiseOnDemand]: 87/105 looper letters, 263 selfloop transitions, 48 changer transitions 2/331 dead transitions. [2021-03-25 09:31:02,259 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 331 transitions, 7010 flow [2021-03-25 09:31:02,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:31:02,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:31:02,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 683 transitions. [2021-03-25 09:31:02,260 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5003663003663004 [2021-03-25 09:31:02,260 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 683 transitions. [2021-03-25 09:31:02,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 683 transitions. [2021-03-25 09:31:02,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:02,261 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 683 transitions. [2021-03-25 09:31:02,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 52.53846153846154) internal successors, (683), 13 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:02,262 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 105.0) internal successors, (1470), 14 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:02,262 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 105.0) internal successors, (1470), 14 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:02,262 INFO L185 Difference]: Start difference. First operand has 232 places, 321 transitions, 6275 flow. Second operand 13 states and 683 transitions. [2021-03-25 09:31:02,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 331 transitions, 7010 flow [2021-03-25 09:31:02,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 331 transitions, 6870 flow, removed 41 selfloop flow, removed 4 redundant places. [2021-03-25 09:31:02,381 INFO L241 Difference]: Finished difference. Result has 242 places, 322 transitions, 6265 flow [2021-03-25 09:31:02,381 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=6135, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=6265, PETRI_PLACES=242, PETRI_TRANSITIONS=322} [2021-03-25 09:31:02,382 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 181 predicate places. [2021-03-25 09:31:02,382 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:02,382 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 242 places, 322 transitions, 6265 flow [2021-03-25 09:31:02,382 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 242 places, 322 transitions, 6265 flow [2021-03-25 09:31:02,384 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 241 places, 322 transitions, 6265 flow [2021-03-25 09:31:02,455 INFO L129 PetriNetUnfolder]: 366/820 cut-off events. [2021-03-25 09:31:02,455 INFO L130 PetriNetUnfolder]: For 12805/12835 co-relation queries the response was YES. [2021-03-25 09:31:02,460 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6412 conditions, 820 events. 366/820 cut-off events. For 12805/12835 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 4967 event pairs, 10 based on Foata normal form. 0/701 useless extension candidates. Maximal degree in co-relation 6261. Up to 281 conditions per place. [2021-03-25 09:31:02,466 INFO L142 LiptonReduction]: Number of co-enabled transitions 1330 [2021-03-25 09:31:02,479 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:02,479 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:02,479 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 97 [2021-03-25 09:31:02,479 INFO L480 AbstractCegarLoop]: Abstraction has has 241 places, 322 transitions, 6265 flow [2021-03-25 09:31:02,480 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:02,480 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:02,480 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:02,480 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-03-25 09:31:02,480 INFO L428 AbstractCegarLoop]: === Iteration 45 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:02,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:02,480 INFO L82 PathProgramCache]: Analyzing trace with hash -1741830010, now seen corresponding path program 15 times [2021-03-25 09:31:02,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:02,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737146242] [2021-03-25 09:31:02,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:02,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:02,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:02,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:02,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:02,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:02,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:02,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:02,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:02,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:02,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:02,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:02,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:02,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:02,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:02,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:02,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:02,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:02,557 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:02,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:02,570 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:31:02,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:02,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:02,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737146242] [2021-03-25 09:31:02,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:02,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:31:02,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945390485] [2021-03-25 09:31:02,572 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:31:02,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:02,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:31:02,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:31:02,573 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 105 [2021-03-25 09:31:02,573 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 322 transitions, 6265 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:02,573 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:02,573 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 105 [2021-03-25 09:31:02,573 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:02,961 INFO L129 PetriNetUnfolder]: 421/913 cut-off events. [2021-03-25 09:31:02,961 INFO L130 PetriNetUnfolder]: For 14392/14400 co-relation queries the response was YES. [2021-03-25 09:31:02,967 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7575 conditions, 913 events. 421/913 cut-off events. For 14392/14400 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 5347 event pairs, 17 based on Foata normal form. 9/803 useless extension candidates. Maximal degree in co-relation 7420. Up to 494 conditions per place. [2021-03-25 09:31:02,970 INFO L132 encePairwiseOnDemand]: 87/105 looper letters, 223 selfloop transitions, 96 changer transitions 0/337 dead transitions. [2021-03-25 09:31:02,970 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 337 transitions, 7048 flow [2021-03-25 09:31:02,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:31:02,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:31:02,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 754 transitions. [2021-03-25 09:31:02,971 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5129251700680272 [2021-03-25 09:31:02,971 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 754 transitions. [2021-03-25 09:31:02,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 754 transitions. [2021-03-25 09:31:02,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:02,972 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 754 transitions. [2021-03-25 09:31:02,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 53.857142857142854) internal successors, (754), 14 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:02,973 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 105.0) internal successors, (1575), 15 states have internal predecessors, (1575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:02,973 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 105.0) internal successors, (1575), 15 states have internal predecessors, (1575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:02,973 INFO L185 Difference]: Start difference. First operand has 241 places, 322 transitions, 6265 flow. Second operand 14 states and 754 transitions. [2021-03-25 09:31:02,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 337 transitions, 7048 flow [2021-03-25 09:31:03,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 337 transitions, 6964 flow, removed 4 selfloop flow, removed 8 redundant places. [2021-03-25 09:31:03,057 INFO L241 Difference]: Finished difference. Result has 249 places, 325 transitions, 6506 flow [2021-03-25 09:31:03,057 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=6181, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=322, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=6506, PETRI_PLACES=249, PETRI_TRANSITIONS=325} [2021-03-25 09:31:03,058 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 188 predicate places. [2021-03-25 09:31:03,058 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:03,058 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 249 places, 325 transitions, 6506 flow [2021-03-25 09:31:03,058 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 249 places, 325 transitions, 6506 flow [2021-03-25 09:31:03,060 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 249 places, 325 transitions, 6506 flow [2021-03-25 09:31:03,133 INFO L129 PetriNetUnfolder]: 375/845 cut-off events. [2021-03-25 09:31:03,133 INFO L130 PetriNetUnfolder]: For 13338/13361 co-relation queries the response was YES. [2021-03-25 09:31:03,139 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6575 conditions, 845 events. 375/845 cut-off events. For 13338/13361 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 5148 event pairs, 9 based on Foata normal form. 0/718 useless extension candidates. Maximal degree in co-relation 6419. Up to 283 conditions per place. [2021-03-25 09:31:03,145 INFO L142 LiptonReduction]: Number of co-enabled transitions 1354 [2021-03-25 09:31:03,158 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:03,158 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:03,158 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 100 [2021-03-25 09:31:03,158 INFO L480 AbstractCegarLoop]: Abstraction has has 249 places, 325 transitions, 6506 flow [2021-03-25 09:31:03,158 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:03,158 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:03,159 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:03,159 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-03-25 09:31:03,159 INFO L428 AbstractCegarLoop]: === Iteration 46 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:03,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:03,159 INFO L82 PathProgramCache]: Analyzing trace with hash 1623990790, now seen corresponding path program 16 times [2021-03-25 09:31:03,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:03,159 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643892236] [2021-03-25 09:31:03,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:03,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:03,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:03,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:03,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:03,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:03,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:03,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:03,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:03,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:03,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:03,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:03,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:03,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:03,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:03,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:03,220 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:31:03,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:31:03,232 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:03,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:03,246 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:31:03,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:03,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:03,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643892236] [2021-03-25 09:31:03,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:03,248 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:31:03,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789280651] [2021-03-25 09:31:03,248 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:31:03,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:03,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:31:03,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:31:03,249 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 105 [2021-03-25 09:31:03,249 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 325 transitions, 6506 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:03,249 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:03,249 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 105 [2021-03-25 09:31:03,249 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:03,610 INFO L129 PetriNetUnfolder]: 424/926 cut-off events. [2021-03-25 09:31:03,610 INFO L130 PetriNetUnfolder]: For 14964/15006 co-relation queries the response was YES. [2021-03-25 09:31:03,617 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7706 conditions, 926 events. 424/926 cut-off events. For 14964/15006 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 5497 event pairs, 18 based on Foata normal form. 37/840 useless extension candidates. Maximal degree in co-relation 7547. Up to 535 conditions per place. [2021-03-25 09:31:03,621 INFO L132 encePairwiseOnDemand]: 87/105 looper letters, 266 selfloop transitions, 48 changer transitions 3/335 dead transitions. [2021-03-25 09:31:03,621 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 335 transitions, 7239 flow [2021-03-25 09:31:03,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:31:03,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:31:03,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 682 transitions. [2021-03-25 09:31:03,622 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49963369963369964 [2021-03-25 09:31:03,622 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 682 transitions. [2021-03-25 09:31:03,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 682 transitions. [2021-03-25 09:31:03,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:03,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 682 transitions. [2021-03-25 09:31:03,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 52.46153846153846) internal successors, (682), 13 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:03,624 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 105.0) internal successors, (1470), 14 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:03,625 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 105.0) internal successors, (1470), 14 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:03,625 INFO L185 Difference]: Start difference. First operand has 249 places, 325 transitions, 6506 flow. Second operand 13 states and 682 transitions. [2021-03-25 09:31:03,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 335 transitions, 7239 flow [2021-03-25 09:31:03,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 335 transitions, 7046 flow, removed 16 selfloop flow, removed 10 redundant places. [2021-03-25 09:31:03,719 INFO L241 Difference]: Finished difference. Result has 253 places, 324 transitions, 6400 flow [2021-03-25 09:31:03,719 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=6313, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=277, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=6400, PETRI_PLACES=253, PETRI_TRANSITIONS=324} [2021-03-25 09:31:03,719 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 192 predicate places. [2021-03-25 09:31:03,719 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:03,719 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 253 places, 324 transitions, 6400 flow [2021-03-25 09:31:03,719 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 253 places, 324 transitions, 6400 flow [2021-03-25 09:31:03,722 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 252 places, 324 transitions, 6400 flow [2021-03-25 09:31:03,805 INFO L129 PetriNetUnfolder]: 368/823 cut-off events. [2021-03-25 09:31:03,806 INFO L130 PetriNetUnfolder]: For 12815/12838 co-relation queries the response was YES. [2021-03-25 09:31:03,812 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6486 conditions, 823 events. 368/823 cut-off events. For 12815/12838 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 4985 event pairs, 15 based on Foata normal form. 0/703 useless extension candidates. Maximal degree in co-relation 6331. Up to 281 conditions per place. [2021-03-25 09:31:03,820 INFO L142 LiptonReduction]: Number of co-enabled transitions 1354 [2021-03-25 09:31:03,834 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:03,834 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:03,834 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 115 [2021-03-25 09:31:03,834 INFO L480 AbstractCegarLoop]: Abstraction has has 252 places, 324 transitions, 6400 flow [2021-03-25 09:31:03,834 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:03,834 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:03,834 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:03,834 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-03-25 09:31:03,834 INFO L428 AbstractCegarLoop]: === Iteration 47 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:03,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:03,835 INFO L82 PathProgramCache]: Analyzing trace with hash -359068564, now seen corresponding path program 17 times [2021-03-25 09:31:03,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:03,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49231866] [2021-03-25 09:31:03,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:03,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:03,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:03,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:03,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:03,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:03,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:03,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:03,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:03,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:03,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:03,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:03,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:03,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:03,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:03,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:03,903 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:31:03,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:31:03,913 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:03,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:03,928 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:31:03,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:03,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:03,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49231866] [2021-03-25 09:31:03,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:03,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:31:03,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891593959] [2021-03-25 09:31:03,931 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:31:03,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:03,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:31:03,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:31:03,932 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 105 [2021-03-25 09:31:03,932 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 324 transitions, 6400 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:03,932 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:03,932 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 105 [2021-03-25 09:31:03,932 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:04,349 INFO L129 PetriNetUnfolder]: 438/960 cut-off events. [2021-03-25 09:31:04,349 INFO L130 PetriNetUnfolder]: For 15426/15456 co-relation queries the response was YES. [2021-03-25 09:31:04,355 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7988 conditions, 960 events. 438/960 cut-off events. For 15426/15456 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 5752 event pairs, 18 based on Foata normal form. 17/849 useless extension candidates. Maximal degree in co-relation 7825. Up to 477 conditions per place. [2021-03-25 09:31:04,359 INFO L132 encePairwiseOnDemand]: 87/105 looper letters, 184 selfloop transitions, 153 changer transitions 2/357 dead transitions. [2021-03-25 09:31:04,359 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 357 transitions, 7749 flow [2021-03-25 09:31:04,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 09:31:04,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 09:31:04,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 811 transitions. [2021-03-25 09:31:04,360 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5149206349206349 [2021-03-25 09:31:04,360 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 811 transitions. [2021-03-25 09:31:04,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 811 transitions. [2021-03-25 09:31:04,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:04,360 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 811 transitions. [2021-03-25 09:31:04,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 54.06666666666667) internal successors, (811), 15 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:04,362 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 105.0) internal successors, (1680), 16 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:04,362 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 105.0) internal successors, (1680), 16 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:04,362 INFO L185 Difference]: Start difference. First operand has 252 places, 324 transitions, 6400 flow. Second operand 15 states and 811 transitions. [2021-03-25 09:31:04,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 357 transitions, 7749 flow [2021-03-25 09:31:04,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 357 transitions, 7653 flow, removed 4 selfloop flow, removed 12 redundant places. [2021-03-25 09:31:04,458 INFO L241 Difference]: Finished difference. Result has 257 places, 346 transitions, 7305 flow [2021-03-25 09:31:04,458 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=6308, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=134, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=7305, PETRI_PLACES=257, PETRI_TRANSITIONS=346} [2021-03-25 09:31:04,458 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 196 predicate places. [2021-03-25 09:31:04,458 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:04,458 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 257 places, 346 transitions, 7305 flow [2021-03-25 09:31:04,458 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 257 places, 346 transitions, 7305 flow [2021-03-25 09:31:04,461 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 257 places, 346 transitions, 7305 flow [2021-03-25 09:31:04,543 INFO L129 PetriNetUnfolder]: 385/876 cut-off events. [2021-03-25 09:31:04,543 INFO L130 PetriNetUnfolder]: For 14221/14255 co-relation queries the response was YES. [2021-03-25 09:31:04,548 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7102 conditions, 876 events. 385/876 cut-off events. For 14221/14255 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 5480 event pairs, 13 based on Foata normal form. 0/746 useless extension candidates. Maximal degree in co-relation 6941. Up to 302 conditions per place. [2021-03-25 09:31:04,555 INFO L142 LiptonReduction]: Number of co-enabled transitions 1500 [2021-03-25 09:31:04,571 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:04,571 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:04,571 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 113 [2021-03-25 09:31:04,571 INFO L480 AbstractCegarLoop]: Abstraction has has 257 places, 346 transitions, 7305 flow [2021-03-25 09:31:04,571 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:04,571 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:04,571 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:04,571 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-03-25 09:31:04,572 INFO L428 AbstractCegarLoop]: === Iteration 48 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:04,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:04,572 INFO L82 PathProgramCache]: Analyzing trace with hash -1521210842, now seen corresponding path program 18 times [2021-03-25 09:31:04,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:04,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286159320] [2021-03-25 09:31:04,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:04,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:04,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:04,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:04,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:04,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:04,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:04,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:04,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:04,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:04,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:04,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:04,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:04,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:04,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:04,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:04,632 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:31:04,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:31:04,645 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:04,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:04,659 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:31:04,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:04,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:04,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286159320] [2021-03-25 09:31:04,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:04,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:31:04,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191090877] [2021-03-25 09:31:04,661 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:31:04,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:04,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:31:04,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:31:04,662 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 105 [2021-03-25 09:31:04,662 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 346 transitions, 7305 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:04,662 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:04,662 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 105 [2021-03-25 09:31:04,662 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:05,095 INFO L129 PetriNetUnfolder]: 449/1001 cut-off events. [2021-03-25 09:31:05,096 INFO L130 PetriNetUnfolder]: For 16700/16742 co-relation queries the response was YES. [2021-03-25 09:31:05,102 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8372 conditions, 1001 events. 449/1001 cut-off events. For 16700/16742 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 6132 event pairs, 19 based on Foata normal form. 30/892 useless extension candidates. Maximal degree in co-relation 8203. Up to 531 conditions per place. [2021-03-25 09:31:05,105 INFO L132 encePairwiseOnDemand]: 87/105 looper letters, 254 selfloop transitions, 90 changer transitions 4/366 dead transitions. [2021-03-25 09:31:05,106 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 366 transitions, 8270 flow [2021-03-25 09:31:05,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:31:05,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:31:05,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 750 transitions. [2021-03-25 09:31:05,107 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5102040816326531 [2021-03-25 09:31:05,107 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 750 transitions. [2021-03-25 09:31:05,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 750 transitions. [2021-03-25 09:31:05,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:05,107 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 750 transitions. [2021-03-25 09:31:05,107 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 53.57142857142857) internal successors, (750), 14 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:05,108 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 105.0) internal successors, (1575), 15 states have internal predecessors, (1575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:05,108 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 105.0) internal successors, (1575), 15 states have internal predecessors, (1575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:05,108 INFO L185 Difference]: Start difference. First operand has 257 places, 346 transitions, 7305 flow. Second operand 14 states and 750 transitions. [2021-03-25 09:31:05,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 366 transitions, 8270 flow [2021-03-25 09:31:05,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 366 transitions, 8064 flow, removed 91 selfloop flow, removed 3 redundant places. [2021-03-25 09:31:05,228 INFO L241 Difference]: Finished difference. Result has 270 places, 351 transitions, 7416 flow [2021-03-25 09:31:05,228 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=7099, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=346, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=7416, PETRI_PLACES=270, PETRI_TRANSITIONS=351} [2021-03-25 09:31:05,228 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 209 predicate places. [2021-03-25 09:31:05,228 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:05,228 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 270 places, 351 transitions, 7416 flow [2021-03-25 09:31:05,229 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 270 places, 351 transitions, 7416 flow [2021-03-25 09:31:05,231 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 270 places, 351 transitions, 7416 flow [2021-03-25 09:31:05,316 INFO L129 PetriNetUnfolder]: 388/893 cut-off events. [2021-03-25 09:31:05,316 INFO L130 PetriNetUnfolder]: For 14810/14840 co-relation queries the response was YES. [2021-03-25 09:31:05,322 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7179 conditions, 893 events. 388/893 cut-off events. For 14810/14840 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 5628 event pairs, 11 based on Foata normal form. 0/758 useless extension candidates. Maximal degree in co-relation 7009. Up to 299 conditions per place. [2021-03-25 09:31:05,330 INFO L142 LiptonReduction]: Number of co-enabled transitions 1564 [2021-03-25 09:31:05,345 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:05,345 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:05,345 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 117 [2021-03-25 09:31:05,347 INFO L480 AbstractCegarLoop]: Abstraction has has 270 places, 351 transitions, 7416 flow [2021-03-25 09:31:05,347 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:05,347 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:05,347 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:05,347 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-03-25 09:31:05,347 INFO L428 AbstractCegarLoop]: === Iteration 49 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:05,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:05,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1577222242, now seen corresponding path program 19 times [2021-03-25 09:31:05,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:05,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490135495] [2021-03-25 09:31:05,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:05,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:05,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:05,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:05,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:05,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:05,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:05,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:05,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:05,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:05,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:05,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:05,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:05,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:05,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:05,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:05,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:05,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:05,418 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:31:05,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:05,432 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:31:05,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:05,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:05,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490135495] [2021-03-25 09:31:05,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:05,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:31:05,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812918262] [2021-03-25 09:31:05,435 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:31:05,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:05,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:31:05,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:31:05,435 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 105 [2021-03-25 09:31:05,435 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 351 transitions, 7416 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:05,435 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:05,436 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 105 [2021-03-25 09:31:05,436 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:05,863 INFO L129 PetriNetUnfolder]: 441/984 cut-off events. [2021-03-25 09:31:05,863 INFO L130 PetriNetUnfolder]: For 16454/16462 co-relation queries the response was YES. [2021-03-25 09:31:05,870 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8342 conditions, 984 events. 441/984 cut-off events. For 16454/16462 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 6016 event pairs, 18 based on Foata normal form. 9/858 useless extension candidates. Maximal degree in co-relation 8168. Up to 517 conditions per place. [2021-03-25 09:31:05,873 INFO L132 encePairwiseOnDemand]: 87/105 looper letters, 250 selfloop transitions, 90 changer transitions 6/364 dead transitions. [2021-03-25 09:31:05,873 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 364 transitions, 8190 flow [2021-03-25 09:31:05,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 09:31:05,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 09:31:05,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 815 transitions. [2021-03-25 09:31:05,874 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5174603174603175 [2021-03-25 09:31:05,874 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 815 transitions. [2021-03-25 09:31:05,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 815 transitions. [2021-03-25 09:31:05,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:05,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 815 transitions. [2021-03-25 09:31:05,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 54.333333333333336) internal successors, (815), 15 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:05,877 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 105.0) internal successors, (1680), 16 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:05,877 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 105.0) internal successors, (1680), 16 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:05,877 INFO L185 Difference]: Start difference. First operand has 270 places, 351 transitions, 7416 flow. Second operand 15 states and 815 transitions. [2021-03-25 09:31:05,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 364 transitions, 8190 flow [2021-03-25 09:31:05,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 364 transitions, 7990 flow, removed 47 selfloop flow, removed 9 redundant places. [2021-03-25 09:31:05,987 INFO L241 Difference]: Finished difference. Result has 277 places, 346 transitions, 7287 flow [2021-03-25 09:31:05,987 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=7216, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=7287, PETRI_PLACES=277, PETRI_TRANSITIONS=346} [2021-03-25 09:31:05,987 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 216 predicate places. [2021-03-25 09:31:05,987 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:05,987 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 277 places, 346 transitions, 7287 flow [2021-03-25 09:31:05,987 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 277 places, 346 transitions, 7287 flow [2021-03-25 09:31:05,990 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 277 places, 346 transitions, 7287 flow [2021-03-25 09:31:06,074 INFO L129 PetriNetUnfolder]: 379/872 cut-off events. [2021-03-25 09:31:06,075 INFO L130 PetriNetUnfolder]: For 14596/14626 co-relation queries the response was YES. [2021-03-25 09:31:06,080 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7099 conditions, 872 events. 379/872 cut-off events. For 14596/14626 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 5479 event pairs, 13 based on Foata normal form. 0/743 useless extension candidates. Maximal degree in co-relation 6930. Up to 294 conditions per place. [2021-03-25 09:31:06,087 INFO L142 LiptonReduction]: Number of co-enabled transitions 1540 [2021-03-25 09:31:06,102 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:06,102 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:06,102 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 115 [2021-03-25 09:31:06,103 INFO L480 AbstractCegarLoop]: Abstraction has has 277 places, 346 transitions, 7287 flow [2021-03-25 09:31:06,103 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:06,103 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:06,103 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:06,103 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-03-25 09:31:06,103 INFO L428 AbstractCegarLoop]: === Iteration 50 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:06,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:06,103 INFO L82 PathProgramCache]: Analyzing trace with hash -2101638456, now seen corresponding path program 20 times [2021-03-25 09:31:06,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:06,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770513611] [2021-03-25 09:31:06,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:06,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:06,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:06,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:06,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:06,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:06,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:06,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:06,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:06,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:06,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:06,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:06,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:06,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:06,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:06,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:06,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:06,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:06,182 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:31:06,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:06,195 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:31:06,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:06,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:06,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770513611] [2021-03-25 09:31:06,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:06,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:31:06,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671076871] [2021-03-25 09:31:06,198 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:31:06,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:06,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:31:06,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:31:06,198 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 105 [2021-03-25 09:31:06,199 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 346 transitions, 7287 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:06,199 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:06,199 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 105 [2021-03-25 09:31:06,199 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:06,564 INFO L129 PetriNetUnfolder]: 439/982 cut-off events. [2021-03-25 09:31:06,564 INFO L130 PetriNetUnfolder]: For 16126/16134 co-relation queries the response was YES. [2021-03-25 09:31:06,571 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8297 conditions, 982 events. 439/982 cut-off events. For 16126/16134 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 6008 event pairs, 18 based on Foata normal form. 9/856 useless extension candidates. Maximal degree in co-relation 8122. Up to 540 conditions per place. [2021-03-25 09:31:06,575 INFO L132 encePairwiseOnDemand]: 87/105 looper letters, 280 selfloop transitions, 57 changer transitions 5/360 dead transitions. [2021-03-25 09:31:06,575 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 360 transitions, 8079 flow [2021-03-25 09:31:06,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:31:06,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:31:06,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 740 transitions. [2021-03-25 09:31:06,576 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5034013605442177 [2021-03-25 09:31:06,576 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 740 transitions. [2021-03-25 09:31:06,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 740 transitions. [2021-03-25 09:31:06,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:06,576 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 740 transitions. [2021-03-25 09:31:06,577 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 52.857142857142854) internal successors, (740), 14 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:06,578 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 105.0) internal successors, (1575), 15 states have internal predecessors, (1575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:06,579 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 105.0) internal successors, (1575), 15 states have internal predecessors, (1575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:06,579 INFO L185 Difference]: Start difference. First operand has 277 places, 346 transitions, 7287 flow. Second operand 14 states and 740 transitions. [2021-03-25 09:31:06,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 360 transitions, 8079 flow [2021-03-25 09:31:06,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 360 transitions, 7844 flow, removed 24 selfloop flow, removed 14 redundant places. [2021-03-25 09:31:06,685 INFO L241 Difference]: Finished difference. Result has 280 places, 345 transitions, 7196 flow [2021-03-25 09:31:06,685 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=7052, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=346, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=7196, PETRI_PLACES=280, PETRI_TRANSITIONS=345} [2021-03-25 09:31:06,685 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 219 predicate places. [2021-03-25 09:31:06,685 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:06,685 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 280 places, 345 transitions, 7196 flow [2021-03-25 09:31:06,686 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 280 places, 345 transitions, 7196 flow [2021-03-25 09:31:06,688 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 278 places, 345 transitions, 7196 flow [2021-03-25 09:31:06,773 INFO L129 PetriNetUnfolder]: 384/899 cut-off events. [2021-03-25 09:31:06,773 INFO L130 PetriNetUnfolder]: For 14757/14788 co-relation queries the response was YES. [2021-03-25 09:31:06,779 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7221 conditions, 899 events. 384/899 cut-off events. For 14757/14788 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 5680 event pairs, 11 based on Foata normal form. 3/770 useless extension candidates. Maximal degree in co-relation 7116. Up to 292 conditions per place. [2021-03-25 09:31:06,786 INFO L142 LiptonReduction]: Number of co-enabled transitions 1540 [2021-03-25 09:31:06,800 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:06,800 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:06,800 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 115 [2021-03-25 09:31:06,801 INFO L480 AbstractCegarLoop]: Abstraction has has 278 places, 345 transitions, 7196 flow [2021-03-25 09:31:06,801 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:06,801 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:06,801 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:06,801 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-03-25 09:31:06,801 INFO L428 AbstractCegarLoop]: === Iteration 51 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:06,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:06,801 INFO L82 PathProgramCache]: Analyzing trace with hash -1123105656, now seen corresponding path program 21 times [2021-03-25 09:31:06,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:06,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501104948] [2021-03-25 09:31:06,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:06,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:06,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:06,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:06,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:06,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:06,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:06,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:06,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:06,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:06,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:06,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:06,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:06,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:06,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:06,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:06,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:06,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:06,872 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:31:06,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:06,885 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:31:06,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:06,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:06,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501104948] [2021-03-25 09:31:06,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:06,887 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:31:06,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811249246] [2021-03-25 09:31:06,888 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:31:06,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:06,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:31:06,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:31:06,888 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 105 [2021-03-25 09:31:06,888 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 345 transitions, 7196 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:06,889 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:06,889 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 105 [2021-03-25 09:31:06,889 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:07,266 INFO L129 PetriNetUnfolder]: 434/968 cut-off events. [2021-03-25 09:31:07,266 INFO L130 PetriNetUnfolder]: For 16017/16025 co-relation queries the response was YES. [2021-03-25 09:31:07,273 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8204 conditions, 968 events. 434/968 cut-off events. For 16017/16025 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 5865 event pairs, 18 based on Foata normal form. 9/846 useless extension candidates. Maximal degree in co-relation 8097. Up to 531 conditions per place. [2021-03-25 09:31:07,277 INFO L132 encePairwiseOnDemand]: 87/105 looper letters, 270 selfloop transitions, 63 changer transitions 7/358 dead transitions. [2021-03-25 09:31:07,277 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 358 transitions, 7958 flow [2021-03-25 09:31:07,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:31:07,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:31:07,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 699 transitions. [2021-03-25 09:31:07,278 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.512087912087912 [2021-03-25 09:31:07,278 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 699 transitions. [2021-03-25 09:31:07,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 699 transitions. [2021-03-25 09:31:07,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:07,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 699 transitions. [2021-03-25 09:31:07,279 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 53.76923076923077) internal successors, (699), 13 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:07,279 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 105.0) internal successors, (1470), 14 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:07,279 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 105.0) internal successors, (1470), 14 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:07,279 INFO L185 Difference]: Start difference. First operand has 278 places, 345 transitions, 7196 flow. Second operand 13 states and 699 transitions. [2021-03-25 09:31:07,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 358 transitions, 7958 flow [2021-03-25 09:31:07,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 358 transitions, 7823 flow, removed 3 selfloop flow, removed 14 redundant places. [2021-03-25 09:31:07,383 INFO L241 Difference]: Finished difference. Result has 278 places, 339 transitions, 7051 flow [2021-03-25 09:31:07,383 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=7061, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=7051, PETRI_PLACES=278, PETRI_TRANSITIONS=339} [2021-03-25 09:31:07,383 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 217 predicate places. [2021-03-25 09:31:07,383 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:07,383 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 278 places, 339 transitions, 7051 flow [2021-03-25 09:31:07,384 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 278 places, 339 transitions, 7051 flow [2021-03-25 09:31:07,386 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 277 places, 339 transitions, 7051 flow [2021-03-25 09:31:07,471 INFO L129 PetriNetUnfolder]: 370/847 cut-off events. [2021-03-25 09:31:07,471 INFO L130 PetriNetUnfolder]: For 14175/14205 co-relation queries the response was YES. [2021-03-25 09:31:07,477 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6934 conditions, 847 events. 370/847 cut-off events. For 14175/14205 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 5235 event pairs, 13 based on Foata normal form. 0/725 useless extension candidates. Maximal degree in co-relation 6825. Up to 286 conditions per place. [2021-03-25 09:31:07,484 INFO L142 LiptonReduction]: Number of co-enabled transitions 1514 [2021-03-25 09:31:07,498 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:07,498 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:07,498 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 115 [2021-03-25 09:31:07,498 INFO L480 AbstractCegarLoop]: Abstraction has has 277 places, 339 transitions, 7051 flow [2021-03-25 09:31:07,498 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:07,498 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:07,499 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:07,499 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-03-25 09:31:07,499 INFO L428 AbstractCegarLoop]: === Iteration 52 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:07,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:07,499 INFO L82 PathProgramCache]: Analyzing trace with hash 979885584, now seen corresponding path program 22 times [2021-03-25 09:31:07,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:07,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554580948] [2021-03-25 09:31:07,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:07,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:07,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:07,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:07,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:07,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:07,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:07,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:07,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:07,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:07,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:07,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:07,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:07,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:07,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:07,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:07,558 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:31:07,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:31:07,569 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:07,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:07,582 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:31:07,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:07,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:07,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554580948] [2021-03-25 09:31:07,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:07,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:31:07,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510788025] [2021-03-25 09:31:07,585 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:31:07,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:07,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:31:07,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:31:07,586 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 105 [2021-03-25 09:31:07,586 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 339 transitions, 7051 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:07,586 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:07,586 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 105 [2021-03-25 09:31:07,586 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:08,009 INFO L129 PetriNetUnfolder]: 438/990 cut-off events. [2021-03-25 09:31:08,009 INFO L130 PetriNetUnfolder]: For 16396/16438 co-relation queries the response was YES. [2021-03-25 09:31:08,016 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8241 conditions, 990 events. 438/990 cut-off events. For 16396/16438 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 6119 event pairs, 19 based on Foata normal form. 31/883 useless extension candidates. Maximal degree in co-relation 8130. Up to 498 conditions per place. [2021-03-25 09:31:08,020 INFO L132 encePairwiseOnDemand]: 87/105 looper letters, 221 selfloop transitions, 107 changer transitions 13/359 dead transitions. [2021-03-25 09:31:08,020 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 359 transitions, 8061 flow [2021-03-25 09:31:08,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 09:31:08,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 09:31:08,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 814 transitions. [2021-03-25 09:31:08,022 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5168253968253969 [2021-03-25 09:31:08,022 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 814 transitions. [2021-03-25 09:31:08,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 814 transitions. [2021-03-25 09:31:08,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:08,023 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 814 transitions. [2021-03-25 09:31:08,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 54.266666666666666) internal successors, (814), 15 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:08,024 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 105.0) internal successors, (1680), 16 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:08,024 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 105.0) internal successors, (1680), 16 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:08,024 INFO L185 Difference]: Start difference. First operand has 277 places, 339 transitions, 7051 flow. Second operand 15 states and 814 transitions. [2021-03-25 09:31:08,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 359 transitions, 8061 flow [2021-03-25 09:31:08,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 359 transitions, 7861 flow, removed 8 selfloop flow, removed 16 redundant places. [2021-03-25 09:31:08,147 INFO L241 Difference]: Finished difference. Result has 279 places, 335 transitions, 6991 flow [2021-03-25 09:31:08,147 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=6857, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=339, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=6991, PETRI_PLACES=279, PETRI_TRANSITIONS=335} [2021-03-25 09:31:08,147 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 218 predicate places. [2021-03-25 09:31:08,147 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:08,147 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 279 places, 335 transitions, 6991 flow [2021-03-25 09:31:08,147 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 279 places, 335 transitions, 6991 flow [2021-03-25 09:31:08,149 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 279 places, 335 transitions, 6991 flow [2021-03-25 09:31:08,232 INFO L129 PetriNetUnfolder]: 369/847 cut-off events. [2021-03-25 09:31:08,232 INFO L130 PetriNetUnfolder]: For 14210/14240 co-relation queries the response was YES. [2021-03-25 09:31:08,239 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6821 conditions, 847 events. 369/847 cut-off events. For 14210/14240 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 5209 event pairs, 8 based on Foata normal form. 0/721 useless extension candidates. Maximal degree in co-relation 6653. Up to 290 conditions per place. [2021-03-25 09:31:08,246 INFO L142 LiptonReduction]: Number of co-enabled transitions 1574 [2021-03-25 09:31:08,318 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:08,319 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 09:31:08,319 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 172 [2021-03-25 09:31:08,319 INFO L480 AbstractCegarLoop]: Abstraction has has 279 places, 335 transitions, 7038 flow [2021-03-25 09:31:08,319 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:08,319 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:08,319 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:08,319 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-03-25 09:31:08,319 INFO L428 AbstractCegarLoop]: === Iteration 53 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:08,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:08,320 INFO L82 PathProgramCache]: Analyzing trace with hash -842867796, now seen corresponding path program 23 times [2021-03-25 09:31:08,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:08,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246567616] [2021-03-25 09:31:08,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:08,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:08,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:08,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:08,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:08,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:08,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:08,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:08,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:08,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:08,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:08,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:08,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:08,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:08,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:08,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:08,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:08,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:08,403 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:31:08,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:08,416 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:31:08,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:08,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:08,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246567616] [2021-03-25 09:31:08,418 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:08,418 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:31:08,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894125512] [2021-03-25 09:31:08,418 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:31:08,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:08,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:31:08,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:31:08,419 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 107 [2021-03-25 09:31:08,419 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 335 transitions, 7038 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:08,419 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:08,419 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 107 [2021-03-25 09:31:08,419 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:08,781 INFO L129 PetriNetUnfolder]: 418/931 cut-off events. [2021-03-25 09:31:08,781 INFO L130 PetriNetUnfolder]: For 16264/16294 co-relation queries the response was YES. [2021-03-25 09:31:08,787 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7958 conditions, 931 events. 418/931 cut-off events. For 16264/16294 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 5617 event pairs, 16 based on Foata normal form. 17/824 useless extension candidates. Maximal degree in co-relation 7785. Up to 518 conditions per place. [2021-03-25 09:31:08,790 INFO L132 encePairwiseOnDemand]: 87/107 looper letters, 262 selfloop transitions, 58 changer transitions 9/347 dead transitions. [2021-03-25 09:31:08,790 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 347 transitions, 7787 flow [2021-03-25 09:31:08,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:31:08,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:31:08,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 692 transitions. [2021-03-25 09:31:08,791 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4974838245866283 [2021-03-25 09:31:08,791 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 692 transitions. [2021-03-25 09:31:08,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 692 transitions. [2021-03-25 09:31:08,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:08,792 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 692 transitions. [2021-03-25 09:31:08,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 53.23076923076923) internal successors, (692), 13 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:08,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 107.0) internal successors, (1498), 14 states have internal predecessors, (1498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:08,793 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 107.0) internal successors, (1498), 14 states have internal predecessors, (1498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:08,793 INFO L185 Difference]: Start difference. First operand has 279 places, 335 transitions, 7038 flow. Second operand 13 states and 692 transitions. [2021-03-25 09:31:08,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 347 transitions, 7787 flow [2021-03-25 09:31:08,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 347 transitions, 7494 flow, removed 97 selfloop flow, removed 10 redundant places. [2021-03-25 09:31:08,890 INFO L241 Difference]: Finished difference. Result has 283 places, 327 transitions, 6701 flow [2021-03-25 09:31:08,890 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=6745, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=335, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=277, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=6701, PETRI_PLACES=283, PETRI_TRANSITIONS=327} [2021-03-25 09:31:08,891 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 222 predicate places. [2021-03-25 09:31:08,891 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:08,891 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 283 places, 327 transitions, 6701 flow [2021-03-25 09:31:08,891 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 283 places, 327 transitions, 6701 flow [2021-03-25 09:31:08,893 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 281 places, 327 transitions, 6701 flow [2021-03-25 09:31:08,973 INFO L129 PetriNetUnfolder]: 352/804 cut-off events. [2021-03-25 09:31:08,973 INFO L130 PetriNetUnfolder]: For 14026/14056 co-relation queries the response was YES. [2021-03-25 09:31:08,979 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6659 conditions, 804 events. 352/804 cut-off events. For 14026/14056 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 4881 event pairs, 12 based on Foata normal form. 0/690 useless extension candidates. Maximal degree in co-relation 6550. Up to 277 conditions per place. [2021-03-25 09:31:08,986 INFO L142 LiptonReduction]: Number of co-enabled transitions 1510 [2021-03-25 09:31:08,999 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:08,999 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:08,999 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 108 [2021-03-25 09:31:08,999 INFO L480 AbstractCegarLoop]: Abstraction has has 281 places, 327 transitions, 6701 flow [2021-03-25 09:31:08,999 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:09,000 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:09,000 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:09,000 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-03-25 09:31:09,000 INFO L428 AbstractCegarLoop]: === Iteration 54 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:09,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:09,000 INFO L82 PathProgramCache]: Analyzing trace with hash -540061225, now seen corresponding path program 1 times [2021-03-25 09:31:09,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:09,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756286290] [2021-03-25 09:31:09,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:09,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:09,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:09,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:09,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:09,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:09,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:09,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:09,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:09,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:31:09,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:09,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:09,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:09,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:09,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:09,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:09,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:09,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:09,087 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:09,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:09,094 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:31:09,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:09,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:09,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756286290] [2021-03-25 09:31:09,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:09,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:31:09,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603459047] [2021-03-25 09:31:09,098 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:31:09,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:09,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:31:09,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:31:09,099 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 107 [2021-03-25 09:31:09,099 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 327 transitions, 6701 flow. Second operand has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:09,099 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:09,099 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 107 [2021-03-25 09:31:09,099 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:09,455 INFO L129 PetriNetUnfolder]: 413/912 cut-off events. [2021-03-25 09:31:09,455 INFO L130 PetriNetUnfolder]: For 15929/15937 co-relation queries the response was YES. [2021-03-25 09:31:09,463 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7857 conditions, 912 events. 413/912 cut-off events. For 15929/15937 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 5419 event pairs, 15 based on Foata normal form. 9/802 useless extension candidates. Maximal degree in co-relation 7746. Up to 497 conditions per place. [2021-03-25 09:31:09,467 INFO L132 encePairwiseOnDemand]: 85/107 looper letters, 245 selfloop transitions, 80 changer transitions 0/343 dead transitions. [2021-03-25 09:31:09,467 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 343 transitions, 7546 flow [2021-03-25 09:31:09,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:31:09,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:31:09,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 601 transitions. [2021-03-25 09:31:09,468 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5106202209005948 [2021-03-25 09:31:09,468 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 601 transitions. [2021-03-25 09:31:09,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 601 transitions. [2021-03-25 09:31:09,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:09,468 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 601 transitions. [2021-03-25 09:31:09,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 54.63636363636363) internal successors, (601), 11 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:09,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 107.0) internal successors, (1284), 12 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:09,469 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 107.0) internal successors, (1284), 12 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:09,469 INFO L185 Difference]: Start difference. First operand has 281 places, 327 transitions, 6701 flow. Second operand 11 states and 601 transitions. [2021-03-25 09:31:09,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 343 transitions, 7546 flow [2021-03-25 09:31:09,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 343 transitions, 7326 flow, removed 10 selfloop flow, removed 19 redundant places. [2021-03-25 09:31:09,567 INFO L241 Difference]: Finished difference. Result has 276 places, 334 transitions, 6878 flow [2021-03-25 09:31:09,567 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=6485, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=6878, PETRI_PLACES=276, PETRI_TRANSITIONS=334} [2021-03-25 09:31:09,567 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 215 predicate places. [2021-03-25 09:31:09,567 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:09,567 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 276 places, 334 transitions, 6878 flow [2021-03-25 09:31:09,567 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 276 places, 334 transitions, 6878 flow [2021-03-25 09:31:09,569 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 276 places, 334 transitions, 6878 flow [2021-03-25 09:31:09,662 INFO L129 PetriNetUnfolder]: 365/854 cut-off events. [2021-03-25 09:31:09,662 INFO L130 PetriNetUnfolder]: For 14474/14505 co-relation queries the response was YES. [2021-03-25 09:31:09,669 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6913 conditions, 854 events. 365/854 cut-off events. For 14474/14505 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 5314 event pairs, 7 based on Foata normal form. 3/733 useless extension candidates. Maximal degree in co-relation 6745. Up to 281 conditions per place. [2021-03-25 09:31:09,679 INFO L142 LiptonReduction]: Number of co-enabled transitions 1556 [2021-03-25 09:31:09,727 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 09:31:09,727 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:31:09,728 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 161 [2021-03-25 09:31:09,728 INFO L480 AbstractCegarLoop]: Abstraction has has 276 places, 334 transitions, 6909 flow [2021-03-25 09:31:09,728 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:09,728 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:09,728 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:09,728 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-03-25 09:31:09,728 INFO L428 AbstractCegarLoop]: === Iteration 55 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:09,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:09,728 INFO L82 PathProgramCache]: Analyzing trace with hash -1093953216, now seen corresponding path program 24 times [2021-03-25 09:31:09,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:09,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461794554] [2021-03-25 09:31:09,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:09,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:09,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:09,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:09,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:09,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:09,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:09,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:09,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:09,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:09,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:09,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:09,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:09,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:09,777 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:31:09,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:31:09,779 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:31:09,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:31:09,790 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:09,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:09,802 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:31:09,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:09,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:09,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461794554] [2021-03-25 09:31:09,804 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:09,804 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:31:09,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312440063] [2021-03-25 09:31:09,805 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:31:09,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:09,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:31:09,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:31:09,805 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 108 [2021-03-25 09:31:09,805 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 334 transitions, 6909 flow. Second operand has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:09,806 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:09,806 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 108 [2021-03-25 09:31:09,806 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:10,077 INFO L129 PetriNetUnfolder]: 414/920 cut-off events. [2021-03-25 09:31:10,077 INFO L130 PetriNetUnfolder]: For 16656/16732 co-relation queries the response was YES. [2021-03-25 09:31:10,084 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7895 conditions, 920 events. 414/920 cut-off events. For 16656/16732 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 5517 event pairs, 16 based on Foata normal form. 31/830 useless extension candidates. Maximal degree in co-relation 7725. Up to 540 conditions per place. [2021-03-25 09:31:10,087 INFO L132 encePairwiseOnDemand]: 91/108 looper letters, 295 selfloop transitions, 24 changer transitions 4/341 dead transitions. [2021-03-25 09:31:10,087 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 341 transitions, 7594 flow [2021-03-25 09:31:10,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:31:10,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:31:10,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 577 transitions. [2021-03-25 09:31:10,088 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.48569023569023567 [2021-03-25 09:31:10,088 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 577 transitions. [2021-03-25 09:31:10,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 577 transitions. [2021-03-25 09:31:10,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:10,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 577 transitions. [2021-03-25 09:31:10,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 52.45454545454545) internal successors, (577), 11 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:10,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 108.0) internal successors, (1296), 12 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:10,089 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 108.0) internal successors, (1296), 12 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:10,089 INFO L185 Difference]: Start difference. First operand has 276 places, 334 transitions, 6909 flow. Second operand 11 states and 577 transitions. [2021-03-25 09:31:10,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 341 transitions, 7594 flow [2021-03-25 09:31:10,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 341 transitions, 7355 flow, removed 53 selfloop flow, removed 7 redundant places. [2021-03-25 09:31:10,201 INFO L241 Difference]: Finished difference. Result has 281 places, 331 transitions, 6681 flow [2021-03-25 09:31:10,201 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=6670, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=6681, PETRI_PLACES=281, PETRI_TRANSITIONS=331} [2021-03-25 09:31:10,201 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 220 predicate places. [2021-03-25 09:31:10,201 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:10,201 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 281 places, 331 transitions, 6681 flow [2021-03-25 09:31:10,201 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 281 places, 331 transitions, 6681 flow [2021-03-25 09:31:10,203 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 277 places, 331 transitions, 6681 flow [2021-03-25 09:31:10,282 INFO L129 PetriNetUnfolder]: 358/824 cut-off events. [2021-03-25 09:31:10,282 INFO L130 PetriNetUnfolder]: For 13507/13533 co-relation queries the response was YES. [2021-03-25 09:31:10,288 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6597 conditions, 824 events. 358/824 cut-off events. For 13507/13533 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 5084 event pairs, 7 based on Foata normal form. 0/702 useless extension candidates. Maximal degree in co-relation 6489. Up to 277 conditions per place. [2021-03-25 09:31:10,294 INFO L142 LiptonReduction]: Number of co-enabled transitions 1556 [2021-03-25 09:31:10,308 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:10,308 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:10,309 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 108 [2021-03-25 09:31:10,309 INFO L480 AbstractCegarLoop]: Abstraction has has 277 places, 331 transitions, 6681 flow [2021-03-25 09:31:10,309 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:10,309 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:10,309 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:10,309 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-03-25 09:31:10,309 INFO L428 AbstractCegarLoop]: === Iteration 56 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:10,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:10,309 INFO L82 PathProgramCache]: Analyzing trace with hash -1183719856, now seen corresponding path program 25 times [2021-03-25 09:31:10,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:10,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966263511] [2021-03-25 09:31:10,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:10,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:10,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:10,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:10,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:10,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:10,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:10,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:10,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:10,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:10,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:10,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:10,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:10,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:10,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:10,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:10,367 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:31:10,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:31:10,379 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:10,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:10,392 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:31:10,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:10,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:10,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966263511] [2021-03-25 09:31:10,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:10,395 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:31:10,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573165309] [2021-03-25 09:31:10,395 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:31:10,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:10,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:31:10,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:31:10,395 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 108 [2021-03-25 09:31:10,396 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 331 transitions, 6681 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:10,396 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:10,396 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 108 [2021-03-25 09:31:10,396 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:10,753 INFO L129 PetriNetUnfolder]: 413/917 cut-off events. [2021-03-25 09:31:10,753 INFO L130 PetriNetUnfolder]: For 16165/16207 co-relation queries the response was YES. [2021-03-25 09:31:10,759 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7766 conditions, 917 events. 413/917 cut-off events. For 16165/16207 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 5509 event pairs, 16 based on Foata normal form. 30/826 useless extension candidates. Maximal degree in co-relation 7656. Up to 522 conditions per place. [2021-03-25 09:31:10,762 INFO L132 encePairwiseOnDemand]: 90/108 looper letters, 271 selfloop transitions, 47 changer transitions 5/341 dead transitions. [2021-03-25 09:31:10,763 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 341 transitions, 7396 flow [2021-03-25 09:31:10,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:31:10,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:31:10,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 734 transitions. [2021-03-25 09:31:10,764 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.48544973544973546 [2021-03-25 09:31:10,764 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 734 transitions. [2021-03-25 09:31:10,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 734 transitions. [2021-03-25 09:31:10,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:10,764 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 734 transitions. [2021-03-25 09:31:10,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 52.42857142857143) internal successors, (734), 14 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:10,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 108.0) internal successors, (1620), 15 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:10,765 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 108.0) internal successors, (1620), 15 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:10,765 INFO L185 Difference]: Start difference. First operand has 277 places, 331 transitions, 6681 flow. Second operand 14 states and 734 transitions. [2021-03-25 09:31:10,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 341 transitions, 7396 flow [2021-03-25 09:31:10,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 341 transitions, 7331 flow, removed 3 selfloop flow, removed 10 redundant places. [2021-03-25 09:31:10,879 INFO L241 Difference]: Finished difference. Result has 282 places, 327 transitions, 6663 flow [2021-03-25 09:31:10,880 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=6618, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=284, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=6663, PETRI_PLACES=282, PETRI_TRANSITIONS=327} [2021-03-25 09:31:10,880 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 221 predicate places. [2021-03-25 09:31:10,880 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:10,880 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 282 places, 327 transitions, 6663 flow [2021-03-25 09:31:10,880 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 282 places, 327 transitions, 6663 flow [2021-03-25 09:31:10,882 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 278 places, 327 transitions, 6663 flow [2021-03-25 09:31:10,978 INFO L129 PetriNetUnfolder]: 358/824 cut-off events. [2021-03-25 09:31:10,978 INFO L130 PetriNetUnfolder]: For 14088/14118 co-relation queries the response was YES. [2021-03-25 09:31:10,983 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6641 conditions, 824 events. 358/824 cut-off events. For 14088/14118 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 5069 event pairs, 12 based on Foata normal form. 0/703 useless extension candidates. Maximal degree in co-relation 6533. Up to 276 conditions per place. [2021-03-25 09:31:10,989 INFO L142 LiptonReduction]: Number of co-enabled transitions 1556 [2021-03-25 09:31:11,002 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:11,003 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:11,003 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 123 [2021-03-25 09:31:11,003 INFO L480 AbstractCegarLoop]: Abstraction has has 278 places, 327 transitions, 6663 flow [2021-03-25 09:31:11,003 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:11,003 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:11,003 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:11,003 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-03-25 09:31:11,003 INFO L428 AbstractCegarLoop]: === Iteration 57 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:11,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:11,003 INFO L82 PathProgramCache]: Analyzing trace with hash -1126008900, now seen corresponding path program 26 times [2021-03-25 09:31:11,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:11,004 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464793670] [2021-03-25 09:31:11,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:11,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:11,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:11,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:11,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:11,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:11,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:11,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:11,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:11,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:11,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:11,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:11,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:11,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:11,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:11,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:11,069 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:31:11,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:31:11,081 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:11,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:11,095 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:31:11,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:11,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:11,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464793670] [2021-03-25 09:31:11,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:11,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:31:11,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210780177] [2021-03-25 09:31:11,098 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:31:11,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:11,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:31:11,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:31:11,098 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 108 [2021-03-25 09:31:11,099 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 327 transitions, 6663 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:11,099 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:11,099 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 108 [2021-03-25 09:31:11,099 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:11,445 INFO L129 PetriNetUnfolder]: 410/907 cut-off events. [2021-03-25 09:31:11,445 INFO L130 PetriNetUnfolder]: For 16161/16203 co-relation queries the response was YES. [2021-03-25 09:31:11,451 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7748 conditions, 907 events. 410/907 cut-off events. For 16161/16203 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 5414 event pairs, 17 based on Foata normal form. 37/825 useless extension candidates. Maximal degree in co-relation 7638. Up to 516 conditions per place. [2021-03-25 09:31:11,454 INFO L132 encePairwiseOnDemand]: 90/108 looper letters, 264 selfloop transitions, 47 changer transitions 8/337 dead transitions. [2021-03-25 09:31:11,454 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 337 transitions, 7367 flow [2021-03-25 09:31:11,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:31:11,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:31:11,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 735 transitions. [2021-03-25 09:31:11,455 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4861111111111111 [2021-03-25 09:31:11,456 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 735 transitions. [2021-03-25 09:31:11,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 735 transitions. [2021-03-25 09:31:11,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:11,456 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 735 transitions. [2021-03-25 09:31:11,456 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 52.5) internal successors, (735), 14 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:11,457 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 108.0) internal successors, (1620), 15 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:11,457 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 108.0) internal successors, (1620), 15 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:11,457 INFO L185 Difference]: Start difference. First operand has 278 places, 327 transitions, 6663 flow. Second operand 14 states and 735 transitions. [2021-03-25 09:31:11,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 337 transitions, 7367 flow [2021-03-25 09:31:11,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 337 transitions, 7227 flow, removed 9 selfloop flow, removed 17 redundant places. [2021-03-25 09:31:11,569 INFO L241 Difference]: Finished difference. Result has 275 places, 320 transitions, 6503 flow [2021-03-25 09:31:11,569 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=6523, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=6503, PETRI_PLACES=275, PETRI_TRANSITIONS=320} [2021-03-25 09:31:11,569 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 214 predicate places. [2021-03-25 09:31:11,569 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:11,570 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 275 places, 320 transitions, 6503 flow [2021-03-25 09:31:11,570 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 275 places, 320 transitions, 6503 flow [2021-03-25 09:31:11,572 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 267 places, 320 transitions, 6503 flow [2021-03-25 09:31:11,646 INFO L129 PetriNetUnfolder]: 353/806 cut-off events. [2021-03-25 09:31:11,646 INFO L130 PetriNetUnfolder]: For 13716/13746 co-relation queries the response was YES. [2021-03-25 09:31:11,651 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6530 conditions, 806 events. 353/806 cut-off events. For 13716/13746 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 4898 event pairs, 12 based on Foata normal form. 0/689 useless extension candidates. Maximal degree in co-relation 6424. Up to 274 conditions per place. [2021-03-25 09:31:11,657 INFO L142 LiptonReduction]: Number of co-enabled transitions 1538 [2021-03-25 09:31:11,670 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:11,670 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:11,670 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 101 [2021-03-25 09:31:11,670 INFO L480 AbstractCegarLoop]: Abstraction has has 267 places, 320 transitions, 6503 flow [2021-03-25 09:31:11,671 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:11,671 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:11,671 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:11,671 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-03-25 09:31:11,671 INFO L428 AbstractCegarLoop]: === Iteration 58 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:11,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:11,671 INFO L82 PathProgramCache]: Analyzing trace with hash 43503255, now seen corresponding path program 2 times [2021-03-25 09:31:11,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:11,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355559074] [2021-03-25 09:31:11,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:11,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:11,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:11,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:11,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:11,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:11,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:11,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:11,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:11,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:31:11,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:11,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:11,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:11,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:11,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:11,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:11,738 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:11,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:11,744 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:11,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:11,754 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:31:11,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:11,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:11,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355559074] [2021-03-25 09:31:11,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:11,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:31:11,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666897019] [2021-03-25 09:31:11,757 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:31:11,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:11,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:31:11,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:31:11,757 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 108 [2021-03-25 09:31:11,757 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 320 transitions, 6503 flow. Second operand has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:11,757 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:11,757 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 108 [2021-03-25 09:31:11,758 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:12,090 INFO L129 PetriNetUnfolder]: 425/935 cut-off events. [2021-03-25 09:31:12,090 INFO L130 PetriNetUnfolder]: For 17641/17649 co-relation queries the response was YES. [2021-03-25 09:31:12,097 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8043 conditions, 935 events. 425/935 cut-off events. For 17641/17649 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 5627 event pairs, 17 based on Foata normal form. 9/824 useless extension candidates. Maximal degree in co-relation 7937. Up to 513 conditions per place. [2021-03-25 09:31:12,100 INFO L132 encePairwiseOnDemand]: 87/108 looper letters, 251 selfloop transitions, 74 changer transitions 0/343 dead transitions. [2021-03-25 09:31:12,100 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 343 transitions, 7584 flow [2021-03-25 09:31:12,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:31:12,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:31:12,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 606 transitions. [2021-03-25 09:31:12,101 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.51010101010101 [2021-03-25 09:31:12,101 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 606 transitions. [2021-03-25 09:31:12,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 606 transitions. [2021-03-25 09:31:12,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:12,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 606 transitions. [2021-03-25 09:31:12,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 55.09090909090909) internal successors, (606), 11 states have internal predecessors, (606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:12,103 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 108.0) internal successors, (1296), 12 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:12,103 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 108.0) internal successors, (1296), 12 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:12,103 INFO L185 Difference]: Start difference. First operand has 267 places, 320 transitions, 6503 flow. Second operand 11 states and 606 transitions. [2021-03-25 09:31:12,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 343 transitions, 7584 flow [2021-03-25 09:31:12,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 343 transitions, 7361 flow, removed 52 selfloop flow, removed 16 redundant places. [2021-03-25 09:31:12,199 INFO L241 Difference]: Finished difference. Result has 264 places, 332 transitions, 6837 flow [2021-03-25 09:31:12,200 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=6302, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=6837, PETRI_PLACES=264, PETRI_TRANSITIONS=332} [2021-03-25 09:31:12,200 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 203 predicate places. [2021-03-25 09:31:12,200 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:12,200 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 264 places, 332 transitions, 6837 flow [2021-03-25 09:31:12,200 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 264 places, 332 transitions, 6837 flow [2021-03-25 09:31:12,202 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 264 places, 332 transitions, 6837 flow [2021-03-25 09:31:12,278 INFO L129 PetriNetUnfolder]: 364/843 cut-off events. [2021-03-25 09:31:12,278 INFO L130 PetriNetUnfolder]: For 14700/14710 co-relation queries the response was YES. [2021-03-25 09:31:12,283 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6745 conditions, 843 events. 364/843 cut-off events. For 14700/14710 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 5246 event pairs, 6 based on Foata normal form. 0/719 useless extension candidates. Maximal degree in co-relation 6580. Up to 278 conditions per place. [2021-03-25 09:31:12,290 INFO L142 LiptonReduction]: Number of co-enabled transitions 1616 [2021-03-25 09:31:12,304 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:12,304 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:12,304 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 104 [2021-03-25 09:31:12,304 INFO L480 AbstractCegarLoop]: Abstraction has has 264 places, 332 transitions, 6837 flow [2021-03-25 09:31:12,304 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:12,304 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:12,304 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:12,304 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-03-25 09:31:12,304 INFO L428 AbstractCegarLoop]: === Iteration 59 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:12,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:12,305 INFO L82 PathProgramCache]: Analyzing trace with hash 780588426, now seen corresponding path program 1 times [2021-03-25 09:31:12,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:12,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084896608] [2021-03-25 09:31:12,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:12,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:12,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:12,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:12,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:12,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:12,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:12,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:12,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:12,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:12,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:12,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:12,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:12,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:12,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:12,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:12,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:12,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:12,354 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:12,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:12,364 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:31:12,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:12,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:12,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084896608] [2021-03-25 09:31:12,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:12,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:31:12,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372702697] [2021-03-25 09:31:12,367 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:31:12,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:12,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:31:12,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:31:12,367 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 108 [2021-03-25 09:31:12,368 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 332 transitions, 6837 flow. Second operand has 9 states, 9 states have (on average 49.333333333333336) internal successors, (444), 9 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:12,368 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:12,368 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 108 [2021-03-25 09:31:12,368 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:12,682 INFO L129 PetriNetUnfolder]: 432/958 cut-off events. [2021-03-25 09:31:12,682 INFO L130 PetriNetUnfolder]: For 17391/17399 co-relation queries the response was YES. [2021-03-25 09:31:12,689 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8183 conditions, 958 events. 432/958 cut-off events. For 17391/17399 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 5815 event pairs, 17 based on Foata normal form. 9/839 useless extension candidates. Maximal degree in co-relation 8012. Up to 495 conditions per place. [2021-03-25 09:31:12,692 INFO L132 encePairwiseOnDemand]: 89/108 looper letters, 217 selfloop transitions, 92 changer transitions 19/346 dead transitions. [2021-03-25 09:31:12,692 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 346 transitions, 7739 flow [2021-03-25 09:31:12,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 09:31:12,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 09:31:12,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 506 transitions. [2021-03-25 09:31:12,693 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5205761316872428 [2021-03-25 09:31:12,693 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 506 transitions. [2021-03-25 09:31:12,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 506 transitions. [2021-03-25 09:31:12,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:12,693 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 506 transitions. [2021-03-25 09:31:12,693 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 56.22222222222222) internal successors, (506), 9 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:12,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 108.0) internal successors, (1080), 10 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:12,694 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 108.0) internal successors, (1080), 10 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:12,694 INFO L185 Difference]: Start difference. First operand has 264 places, 332 transitions, 6837 flow. Second operand 9 states and 506 transitions. [2021-03-25 09:31:12,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 346 transitions, 7739 flow [2021-03-25 09:31:12,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 346 transitions, 7445 flow, removed 114 selfloop flow, removed 6 redundant places. [2021-03-25 09:31:12,786 INFO L241 Difference]: Finished difference. Result has 270 places, 317 transitions, 6474 flow [2021-03-25 09:31:12,786 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=6543, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=6474, PETRI_PLACES=270, PETRI_TRANSITIONS=317} [2021-03-25 09:31:12,786 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 209 predicate places. [2021-03-25 09:31:12,786 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:12,786 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 270 places, 317 transitions, 6474 flow [2021-03-25 09:31:12,786 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 270 places, 317 transitions, 6474 flow [2021-03-25 09:31:12,789 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 269 places, 317 transitions, 6474 flow [2021-03-25 09:31:12,862 INFO L129 PetriNetUnfolder]: 353/802 cut-off events. [2021-03-25 09:31:12,863 INFO L130 PetriNetUnfolder]: For 14492/14512 co-relation queries the response was YES. [2021-03-25 09:31:12,868 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6569 conditions, 802 events. 353/802 cut-off events. For 14492/14512 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 4836 event pairs, 8 based on Foata normal form. 0/683 useless extension candidates. Maximal degree in co-relation 6404. Up to 254 conditions per place. [2021-03-25 09:31:12,874 INFO L142 LiptonReduction]: Number of co-enabled transitions 1484 [2021-03-25 09:31:12,924 INFO L154 LiptonReduction]: Checked pairs total: 6 [2021-03-25 09:31:12,924 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:31:12,924 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 138 [2021-03-25 09:31:12,925 INFO L480 AbstractCegarLoop]: Abstraction has has 269 places, 317 transitions, 6473 flow [2021-03-25 09:31:12,925 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 49.333333333333336) internal successors, (444), 9 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:12,925 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:12,925 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:12,925 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-03-25 09:31:12,925 INFO L428 AbstractCegarLoop]: === Iteration 60 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:12,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:12,925 INFO L82 PathProgramCache]: Analyzing trace with hash -1861713113, now seen corresponding path program 3 times [2021-03-25 09:31:12,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:12,925 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901364368] [2021-03-25 09:31:12,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:12,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:12,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:12,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:12,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:12,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:12,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:12,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:12,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:12,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:31:12,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:12,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:12,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:12,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:12,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:12,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:12,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:12,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:13,002 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:13,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:13,007 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:31:13,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:13,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:13,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901364368] [2021-03-25 09:31:13,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:13,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:31:13,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309346677] [2021-03-25 09:31:13,010 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:31:13,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:13,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:31:13,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:31:13,010 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 109 [2021-03-25 09:31:13,010 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 317 transitions, 6473 flow. Second operand has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:13,010 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:13,010 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 109 [2021-03-25 09:31:13,010 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:13,337 INFO L129 PetriNetUnfolder]: 414/900 cut-off events. [2021-03-25 09:31:13,337 INFO L130 PetriNetUnfolder]: For 16729/16737 co-relation queries the response was YES. [2021-03-25 09:31:13,344 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7921 conditions, 900 events. 414/900 cut-off events. For 16729/16737 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 5283 event pairs, 18 based on Foata normal form. 9/796 useless extension candidates. Maximal degree in co-relation 7750. Up to 518 conditions per place. [2021-03-25 09:31:13,347 INFO L132 encePairwiseOnDemand]: 89/109 looper letters, 246 selfloop transitions, 65 changer transitions 0/329 dead transitions. [2021-03-25 09:31:13,347 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 329 transitions, 7217 flow [2021-03-25 09:31:13,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:31:13,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:31:13,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 695 transitions. [2021-03-25 09:31:13,348 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49047282992237123 [2021-03-25 09:31:13,348 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 695 transitions. [2021-03-25 09:31:13,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 695 transitions. [2021-03-25 09:31:13,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:13,348 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 695 transitions. [2021-03-25 09:31:13,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 53.46153846153846) internal successors, (695), 13 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:13,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 109.0) internal successors, (1526), 14 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:13,350 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 109.0) internal successors, (1526), 14 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:13,350 INFO L185 Difference]: Start difference. First operand has 269 places, 317 transitions, 6473 flow. Second operand 13 states and 695 transitions. [2021-03-25 09:31:13,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 329 transitions, 7217 flow [2021-03-25 09:31:13,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 329 transitions, 6813 flow, removed 10 selfloop flow, removed 22 redundant places. [2021-03-25 09:31:13,446 INFO L241 Difference]: Finished difference. Result has 263 places, 321 transitions, 6304 flow [2021-03-25 09:31:13,447 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=6069, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=6304, PETRI_PLACES=263, PETRI_TRANSITIONS=321} [2021-03-25 09:31:13,447 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 202 predicate places. [2021-03-25 09:31:13,447 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:13,447 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 263 places, 321 transitions, 6304 flow [2021-03-25 09:31:13,447 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 263 places, 321 transitions, 6304 flow [2021-03-25 09:31:13,449 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 263 places, 321 transitions, 6304 flow [2021-03-25 09:31:13,522 INFO L129 PetriNetUnfolder]: 362/821 cut-off events. [2021-03-25 09:31:13,522 INFO L130 PetriNetUnfolder]: For 13218/13250 co-relation queries the response was YES. [2021-03-25 09:31:13,528 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6486 conditions, 821 events. 362/821 cut-off events. For 13218/13250 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 4977 event pairs, 9 based on Foata normal form. 0/700 useless extension candidates. Maximal degree in co-relation 6362. Up to 258 conditions per place. [2021-03-25 09:31:13,534 INFO L142 LiptonReduction]: Number of co-enabled transitions 1518 [2021-03-25 09:31:13,547 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:13,547 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:13,547 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 100 [2021-03-25 09:31:13,547 INFO L480 AbstractCegarLoop]: Abstraction has has 263 places, 321 transitions, 6304 flow [2021-03-25 09:31:13,547 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:13,547 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:13,547 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:13,547 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-03-25 09:31:13,548 INFO L428 AbstractCegarLoop]: === Iteration 61 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:13,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:13,548 INFO L82 PathProgramCache]: Analyzing trace with hash -152503217, now seen corresponding path program 4 times [2021-03-25 09:31:13,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:13,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439227985] [2021-03-25 09:31:13,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:13,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:13,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:13,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:13,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:13,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:13,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:13,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:13,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:13,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:31:13,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:13,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:13,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:13,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:13,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:13,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:13,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:13,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:13,620 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:13,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:13,634 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:31:13,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:13,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:13,636 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439227985] [2021-03-25 09:31:13,636 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:13,636 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:31:13,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554105835] [2021-03-25 09:31:13,637 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:31:13,637 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:13,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:31:13,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:31:13,637 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 109 [2021-03-25 09:31:13,637 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 321 transitions, 6304 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:13,638 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:13,638 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 109 [2021-03-25 09:31:13,638 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:14,039 INFO L129 PetriNetUnfolder]: 430/941 cut-off events. [2021-03-25 09:31:14,039 INFO L130 PetriNetUnfolder]: For 16455/16531 co-relation queries the response was YES. [2021-03-25 09:31:14,046 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7873 conditions, 941 events. 430/941 cut-off events. For 16455/16531 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 5597 event pairs, 12 based on Foata normal form. 39/856 useless extension candidates. Maximal degree in co-relation 7745. Up to 470 conditions per place. [2021-03-25 09:31:14,049 INFO L132 encePairwiseOnDemand]: 89/109 looper letters, 232 selfloop transitions, 102 changer transitions 0/352 dead transitions. [2021-03-25 09:31:14,049 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 352 transitions, 7554 flow [2021-03-25 09:31:14,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:31:14,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:31:14,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 662 transitions. [2021-03-25 09:31:14,050 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5061162079510704 [2021-03-25 09:31:14,050 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 662 transitions. [2021-03-25 09:31:14,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 662 transitions. [2021-03-25 09:31:14,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:14,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 662 transitions. [2021-03-25 09:31:14,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 55.166666666666664) internal successors, (662), 12 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:14,052 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 109.0) internal successors, (1417), 13 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:14,052 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 109.0) internal successors, (1417), 13 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:14,052 INFO L185 Difference]: Start difference. First operand has 263 places, 321 transitions, 6304 flow. Second operand 12 states and 662 transitions. [2021-03-25 09:31:14,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 352 transitions, 7554 flow [2021-03-25 09:31:14,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 352 transitions, 7393 flow, removed 37 selfloop flow, removed 7 redundant places. [2021-03-25 09:31:14,166 INFO L241 Difference]: Finished difference. Result has 269 places, 337 transitions, 6842 flow [2021-03-25 09:31:14,166 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=6143, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=6842, PETRI_PLACES=269, PETRI_TRANSITIONS=337} [2021-03-25 09:31:14,166 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 208 predicate places. [2021-03-25 09:31:14,166 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:14,166 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 269 places, 337 transitions, 6842 flow [2021-03-25 09:31:14,167 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 269 places, 337 transitions, 6842 flow [2021-03-25 09:31:14,169 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 269 places, 337 transitions, 6842 flow [2021-03-25 09:31:14,279 INFO L129 PetriNetUnfolder]: 373/852 cut-off events. [2021-03-25 09:31:14,279 INFO L130 PetriNetUnfolder]: For 15669/15691 co-relation queries the response was YES. [2021-03-25 09:31:14,284 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6877 conditions, 852 events. 373/852 cut-off events. For 15669/15691 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 5269 event pairs, 8 based on Foata normal form. 0/728 useless extension candidates. Maximal degree in co-relation 6738. Up to 263 conditions per place. [2021-03-25 09:31:14,291 INFO L142 LiptonReduction]: Number of co-enabled transitions 1640 [2021-03-25 09:31:14,337 INFO L154 LiptonReduction]: Checked pairs total: 5 [2021-03-25 09:31:14,337 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:31:14,337 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 171 [2021-03-25 09:31:14,338 INFO L480 AbstractCegarLoop]: Abstraction has has 269 places, 337 transitions, 6873 flow [2021-03-25 09:31:14,338 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:14,338 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:14,338 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:14,338 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-03-25 09:31:14,338 INFO L428 AbstractCegarLoop]: === Iteration 62 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:14,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:14,338 INFO L82 PathProgramCache]: Analyzing trace with hash -1055213391, now seen corresponding path program 5 times [2021-03-25 09:31:14,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:14,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861051052] [2021-03-25 09:31:14,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:14,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:14,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:14,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:14,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:14,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:14,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:14,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:14,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:14,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:31:14,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:14,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:14,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:14,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:14,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:14,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:14,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:14,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:14,409 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:14,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:14,423 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:31:14,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:14,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:14,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861051052] [2021-03-25 09:31:14,425 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:14,425 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:31:14,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385131137] [2021-03-25 09:31:14,425 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:31:14,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:14,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:31:14,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:31:14,426 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 110 [2021-03-25 09:31:14,426 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 337 transitions, 6873 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:14,426 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:14,426 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 110 [2021-03-25 09:31:14,426 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:14,858 INFO L129 PetriNetUnfolder]: 435/962 cut-off events. [2021-03-25 09:31:14,858 INFO L130 PetriNetUnfolder]: For 17486/17528 co-relation queries the response was YES. [2021-03-25 09:31:14,865 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8180 conditions, 962 events. 435/962 cut-off events. For 17486/17528 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 5798 event pairs, 13 based on Foata normal form. 23/856 useless extension candidates. Maximal degree in co-relation 8029. Up to 514 conditions per place. [2021-03-25 09:31:14,869 INFO L132 encePairwiseOnDemand]: 90/110 looper letters, 255 selfloop transitions, 82 changer transitions 0/355 dead transitions. [2021-03-25 09:31:14,869 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 355 transitions, 7787 flow [2021-03-25 09:31:14,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:31:14,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:31:14,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 756 transitions. [2021-03-25 09:31:14,870 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4909090909090909 [2021-03-25 09:31:14,870 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 756 transitions. [2021-03-25 09:31:14,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 756 transitions. [2021-03-25 09:31:14,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:14,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 756 transitions. [2021-03-25 09:31:14,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 54.0) internal successors, (756), 14 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:14,871 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 110.0) internal successors, (1650), 15 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:14,871 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 110.0) internal successors, (1650), 15 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:14,871 INFO L185 Difference]: Start difference. First operand has 269 places, 337 transitions, 6873 flow. Second operand 14 states and 756 transitions. [2021-03-25 09:31:14,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 355 transitions, 7787 flow [2021-03-25 09:31:14,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 355 transitions, 7341 flow, removed 183 selfloop flow, removed 6 redundant places. [2021-03-25 09:31:14,996 INFO L241 Difference]: Finished difference. Result has 281 places, 343 transitions, 6766 flow [2021-03-25 09:31:14,997 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=6431, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=337, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=6766, PETRI_PLACES=281, PETRI_TRANSITIONS=343} [2021-03-25 09:31:14,997 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 220 predicate places. [2021-03-25 09:31:14,997 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:14,997 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 281 places, 343 transitions, 6766 flow [2021-03-25 09:31:14,997 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 281 places, 343 transitions, 6766 flow [2021-03-25 09:31:14,999 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 281 places, 343 transitions, 6766 flow [2021-03-25 09:31:15,080 INFO L129 PetriNetUnfolder]: 370/858 cut-off events. [2021-03-25 09:31:15,080 INFO L130 PetriNetUnfolder]: For 15123/15158 co-relation queries the response was YES. [2021-03-25 09:31:15,086 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6703 conditions, 858 events. 370/858 cut-off events. For 15123/15158 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 5365 event pairs, 3 based on Foata normal form. 0/731 useless extension candidates. Maximal degree in co-relation 6578. Up to 243 conditions per place. [2021-03-25 09:31:15,093 INFO L142 LiptonReduction]: Number of co-enabled transitions 1704 [2021-03-25 09:31:15,142 INFO L154 LiptonReduction]: Checked pairs total: 5 [2021-03-25 09:31:15,142 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:31:15,142 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 145 [2021-03-25 09:31:15,142 INFO L480 AbstractCegarLoop]: Abstraction has has 281 places, 343 transitions, 6769 flow [2021-03-25 09:31:15,142 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:15,142 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:15,142 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:15,142 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-03-25 09:31:15,142 INFO L428 AbstractCegarLoop]: === Iteration 63 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:15,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:15,143 INFO L82 PathProgramCache]: Analyzing trace with hash -483185629, now seen corresponding path program 6 times [2021-03-25 09:31:15,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:15,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141498224] [2021-03-25 09:31:15,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:15,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:15,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:15,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:15,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:15,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:15,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:15,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:15,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:15,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:31:15,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:15,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:15,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:15,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:15,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:15,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:15,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:15,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:15,219 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:31:15,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:15,232 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:31:15,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:15,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:15,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141498224] [2021-03-25 09:31:15,237 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:15,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:31:15,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112019084] [2021-03-25 09:31:15,237 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:31:15,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:15,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:31:15,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:31:15,237 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 111 [2021-03-25 09:31:15,238 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 343 transitions, 6769 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:15,238 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:15,238 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 111 [2021-03-25 09:31:15,238 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:15,666 INFO L129 PetriNetUnfolder]: 437/975 cut-off events. [2021-03-25 09:31:15,666 INFO L130 PetriNetUnfolder]: For 16519/16527 co-relation queries the response was YES. [2021-03-25 09:31:15,674 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7995 conditions, 975 events. 437/975 cut-off events. For 16519/16527 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 5961 event pairs, 12 based on Foata normal form. 9/852 useless extension candidates. Maximal degree in co-relation 7843. Up to 513 conditions per place. [2021-03-25 09:31:15,677 INFO L132 encePairwiseOnDemand]: 90/111 looper letters, 251 selfloop transitions, 84 changer transitions 0/353 dead transitions. [2021-03-25 09:31:15,678 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 353 transitions, 7500 flow [2021-03-25 09:31:15,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:31:15,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:31:15,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 703 transitions. [2021-03-25 09:31:15,679 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.48717948717948717 [2021-03-25 09:31:15,679 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 703 transitions. [2021-03-25 09:31:15,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 703 transitions. [2021-03-25 09:31:15,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:15,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 703 transitions. [2021-03-25 09:31:15,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 54.07692307692308) internal successors, (703), 13 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:15,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 111.0) internal successors, (1554), 14 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:15,680 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 111.0) internal successors, (1554), 14 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:15,680 INFO L185 Difference]: Start difference. First operand has 281 places, 343 transitions, 6769 flow. Second operand 13 states and 703 transitions. [2021-03-25 09:31:15,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 353 transitions, 7500 flow [2021-03-25 09:31:15,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 353 transitions, 7279 flow, removed 38 selfloop flow, removed 8 redundant places. [2021-03-25 09:31:15,809 INFO L241 Difference]: Finished difference. Result has 286 places, 344 transitions, 6741 flow [2021-03-25 09:31:15,809 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=6548, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=343, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=6741, PETRI_PLACES=286, PETRI_TRANSITIONS=344} [2021-03-25 09:31:15,809 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 225 predicate places. [2021-03-25 09:31:15,809 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:15,809 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 286 places, 344 transitions, 6741 flow [2021-03-25 09:31:15,809 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 286 places, 344 transitions, 6741 flow [2021-03-25 09:31:15,812 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 286 places, 344 transitions, 6741 flow [2021-03-25 09:31:15,901 INFO L129 PetriNetUnfolder]: 378/878 cut-off events. [2021-03-25 09:31:15,902 INFO L130 PetriNetUnfolder]: For 15706/15724 co-relation queries the response was YES. [2021-03-25 09:31:15,909 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6795 conditions, 878 events. 378/878 cut-off events. For 15706/15724 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 5577 event pairs, 10 based on Foata normal form. 0/748 useless extension candidates. Maximal degree in co-relation 6643. Up to 246 conditions per place. [2021-03-25 09:31:15,917 INFO L142 LiptonReduction]: Number of co-enabled transitions 1714 [2021-03-25 09:31:15,933 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:15,933 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:15,933 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 124 [2021-03-25 09:31:15,933 INFO L480 AbstractCegarLoop]: Abstraction has has 286 places, 344 transitions, 6741 flow [2021-03-25 09:31:15,933 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:15,933 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:15,933 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:15,933 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-03-25 09:31:15,934 INFO L428 AbstractCegarLoop]: === Iteration 64 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:15,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:15,934 INFO L82 PathProgramCache]: Analyzing trace with hash -1090513663, now seen corresponding path program 7 times [2021-03-25 09:31:15,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:15,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804047242] [2021-03-25 09:31:15,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:15,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:15,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:15,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:15,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:15,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:15,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:15,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:15,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:15,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:31:15,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:15,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:15,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:15,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:15,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:15,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:16,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:16,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:16,014 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:16,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:16,035 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:31:16,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:16,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:16,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804047242] [2021-03-25 09:31:16,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:16,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:31:16,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753772813] [2021-03-25 09:31:16,039 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:31:16,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:16,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:31:16,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:31:16,040 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 111 [2021-03-25 09:31:16,041 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 344 transitions, 6741 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:16,041 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:16,041 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 111 [2021-03-25 09:31:16,041 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:16,497 INFO L129 PetriNetUnfolder]: 439/999 cut-off events. [2021-03-25 09:31:16,497 INFO L130 PetriNetUnfolder]: For 16528/16604 co-relation queries the response was YES. [2021-03-25 09:31:16,504 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8005 conditions, 999 events. 439/999 cut-off events. For 16528/16604 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 6279 event pairs, 7 based on Foata normal form. 34/895 useless extension candidates. Maximal degree in co-relation 7855. Up to 514 conditions per place. [2021-03-25 09:31:16,508 INFO L132 encePairwiseOnDemand]: 90/111 looper letters, 245 selfloop transitions, 61 changer transitions 33/357 dead transitions. [2021-03-25 09:31:16,508 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 357 transitions, 7501 flow [2021-03-25 09:31:16,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:31:16,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:31:16,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 755 transitions. [2021-03-25 09:31:16,509 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.48584298584298585 [2021-03-25 09:31:16,509 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 755 transitions. [2021-03-25 09:31:16,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 755 transitions. [2021-03-25 09:31:16,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:16,509 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 755 transitions. [2021-03-25 09:31:16,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 53.92857142857143) internal successors, (755), 14 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:16,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 111.0) internal successors, (1665), 15 states have internal predecessors, (1665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:16,511 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 111.0) internal successors, (1665), 15 states have internal predecessors, (1665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:16,511 INFO L185 Difference]: Start difference. First operand has 286 places, 344 transitions, 6741 flow. Second operand 14 states and 755 transitions. [2021-03-25 09:31:16,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 357 transitions, 7501 flow [2021-03-25 09:31:16,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 357 transitions, 7311 flow, removed 6 selfloop flow, removed 13 redundant places. [2021-03-25 09:31:16,624 INFO L241 Difference]: Finished difference. Result has 289 places, 314 transitions, 6232 flow [2021-03-25 09:31:16,624 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=6551, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=344, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=6232, PETRI_PLACES=289, PETRI_TRANSITIONS=314} [2021-03-25 09:31:16,624 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 228 predicate places. [2021-03-25 09:31:16,624 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:16,624 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 289 places, 314 transitions, 6232 flow [2021-03-25 09:31:16,624 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 289 places, 314 transitions, 6232 flow [2021-03-25 09:31:16,627 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 270 places, 314 transitions, 6232 flow [2021-03-25 09:31:16,701 INFO L129 PetriNetUnfolder]: 349/769 cut-off events. [2021-03-25 09:31:16,701 INFO L130 PetriNetUnfolder]: For 14765/14787 co-relation queries the response was YES. [2021-03-25 09:31:16,706 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6410 conditions, 769 events. 349/769 cut-off events. For 14765/14787 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 4476 event pairs, 7 based on Foata normal form. 0/660 useless extension candidates. Maximal degree in co-relation 6300. Up to 244 conditions per place. [2021-03-25 09:31:16,712 INFO L142 LiptonReduction]: Number of co-enabled transitions 1468 [2021-03-25 09:31:16,725 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:16,725 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:16,725 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 101 [2021-03-25 09:31:16,725 INFO L480 AbstractCegarLoop]: Abstraction has has 270 places, 314 transitions, 6232 flow [2021-03-25 09:31:16,726 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:16,726 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:16,726 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:16,726 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-03-25 09:31:16,726 INFO L428 AbstractCegarLoop]: === Iteration 65 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:16,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:16,726 INFO L82 PathProgramCache]: Analyzing trace with hash -1292033853, now seen corresponding path program 3 times [2021-03-25 09:31:16,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:16,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863147155] [2021-03-25 09:31:16,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:16,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:16,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:16,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:16,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:16,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:16,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:16,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:16,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:16,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:16,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:16,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:16,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:16,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:16,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:16,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:16,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:16,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:16,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:16,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:16,835 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:16,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:16,840 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:31:16,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:16,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:16,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863147155] [2021-03-25 09:31:16,842 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:16,842 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:31:16,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375250156] [2021-03-25 09:31:16,842 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:31:16,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:16,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:31:16,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:31:16,843 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 111 [2021-03-25 09:31:16,843 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 314 transitions, 6232 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:16,843 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:16,843 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 111 [2021-03-25 09:31:16,843 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:17,137 INFO L129 PetriNetUnfolder]: 411/874 cut-off events. [2021-03-25 09:31:17,137 INFO L130 PetriNetUnfolder]: For 16565/16607 co-relation queries the response was YES. [2021-03-25 09:31:17,144 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7680 conditions, 874 events. 411/874 cut-off events. For 16565/16607 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 4950 event pairs, 15 based on Foata normal form. 23/786 useless extension candidates. Maximal degree in co-relation 7568. Up to 514 conditions per place. [2021-03-25 09:31:17,147 INFO L132 encePairwiseOnDemand]: 94/111 looper letters, 250 selfloop transitions, 59 changer transitions 0/327 dead transitions. [2021-03-25 09:31:17,148 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 327 transitions, 7061 flow [2021-03-25 09:31:17,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:31:17,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:31:17,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 643 transitions. [2021-03-25 09:31:17,149 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4827327327327327 [2021-03-25 09:31:17,149 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 643 transitions. [2021-03-25 09:31:17,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 643 transitions. [2021-03-25 09:31:17,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:17,149 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 643 transitions. [2021-03-25 09:31:17,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 53.583333333333336) internal successors, (643), 12 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:17,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 111.0) internal successors, (1443), 13 states have internal predecessors, (1443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:17,150 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 111.0) internal successors, (1443), 13 states have internal predecessors, (1443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:17,150 INFO L185 Difference]: Start difference. First operand has 270 places, 314 transitions, 6232 flow. Second operand 12 states and 643 transitions. [2021-03-25 09:31:17,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 327 transitions, 7061 flow [2021-03-25 09:31:17,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 327 transitions, 6841 flow, removed 27 selfloop flow, removed 21 redundant places. [2021-03-25 09:31:17,249 INFO L241 Difference]: Finished difference. Result has 263 places, 318 transitions, 6331 flow [2021-03-25 09:31:17,249 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=6026, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=314, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=6331, PETRI_PLACES=263, PETRI_TRANSITIONS=318} [2021-03-25 09:31:17,249 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 202 predicate places. [2021-03-25 09:31:17,249 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:17,249 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 263 places, 318 transitions, 6331 flow [2021-03-25 09:31:17,249 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 263 places, 318 transitions, 6331 flow [2021-03-25 09:31:17,251 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 263 places, 318 transitions, 6331 flow [2021-03-25 09:31:17,324 INFO L129 PetriNetUnfolder]: 357/788 cut-off events. [2021-03-25 09:31:17,324 INFO L130 PetriNetUnfolder]: For 14353/14383 co-relation queries the response was YES. [2021-03-25 09:31:17,330 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6435 conditions, 788 events. 357/788 cut-off events. For 14353/14383 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 4599 event pairs, 13 based on Foata normal form. 0/675 useless extension candidates. Maximal degree in co-relation 6282. Up to 251 conditions per place. [2021-03-25 09:31:17,337 INFO L142 LiptonReduction]: Number of co-enabled transitions 1520 [2021-03-25 09:31:17,350 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:17,350 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:17,350 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 101 [2021-03-25 09:31:17,350 INFO L480 AbstractCegarLoop]: Abstraction has has 263 places, 318 transitions, 6331 flow [2021-03-25 09:31:17,350 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:17,350 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:17,350 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:17,351 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-03-25 09:31:17,351 INFO L428 AbstractCegarLoop]: === Iteration 66 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:17,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:17,351 INFO L82 PathProgramCache]: Analyzing trace with hash 1246448329, now seen corresponding path program 1 times [2021-03-25 09:31:17,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:17,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439858111] [2021-03-25 09:31:17,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:17,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:17,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:17,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:17,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:17,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:17,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:17,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:17,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:17,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:17,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:17,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:17,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:17,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:17,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:17,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:17,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:17,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:17,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:17,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:17,455 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:17,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:17,469 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:31:17,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:17,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:17,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439858111] [2021-03-25 09:31:17,471 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:17,471 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:31:17,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110617634] [2021-03-25 09:31:17,471 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:31:17,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:17,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:31:17,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:31:17,472 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 111 [2021-03-25 09:31:17,472 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 318 transitions, 6331 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:17,472 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:17,472 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 111 [2021-03-25 09:31:17,472 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:18,072 INFO L129 PetriNetUnfolder]: 454/966 cut-off events. [2021-03-25 09:31:18,072 INFO L130 PetriNetUnfolder]: For 16944/16946 co-relation queries the response was YES. [2021-03-25 09:31:18,078 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8219 conditions, 966 events. 454/966 cut-off events. For 16944/16946 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 5682 event pairs, 11 based on Foata normal form. 3/845 useless extension candidates. Maximal degree in co-relation 8056. Up to 512 conditions per place. [2021-03-25 09:31:18,082 INFO L132 encePairwiseOnDemand]: 93/111 looper letters, 258 selfloop transitions, 112 changer transitions 0/388 dead transitions. [2021-03-25 09:31:18,082 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 388 transitions, 8398 flow [2021-03-25 09:31:18,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-25 09:31:18,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-25 09:31:18,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1013 transitions. [2021-03-25 09:31:18,083 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.48032242769084876 [2021-03-25 09:31:18,083 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1013 transitions. [2021-03-25 09:31:18,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1013 transitions. [2021-03-25 09:31:18,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:18,083 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1013 transitions. [2021-03-25 09:31:18,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 53.31578947368421) internal successors, (1013), 19 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:18,085 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 111.0) internal successors, (2220), 20 states have internal predecessors, (2220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:18,085 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 111.0) internal successors, (2220), 20 states have internal predecessors, (2220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:18,085 INFO L185 Difference]: Start difference. First operand has 263 places, 318 transitions, 6331 flow. Second operand 19 states and 1013 transitions. [2021-03-25 09:31:18,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 388 transitions, 8398 flow [2021-03-25 09:31:18,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 388 transitions, 8301 flow, removed 22 selfloop flow, removed 7 redundant places. [2021-03-25 09:31:18,193 INFO L241 Difference]: Finished difference. Result has 278 places, 368 transitions, 7744 flow [2021-03-25 09:31:18,193 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=6238, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=318, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=7744, PETRI_PLACES=278, PETRI_TRANSITIONS=368} [2021-03-25 09:31:18,193 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 217 predicate places. [2021-03-25 09:31:18,193 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:18,193 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 278 places, 368 transitions, 7744 flow [2021-03-25 09:31:18,193 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 278 places, 368 transitions, 7744 flow [2021-03-25 09:31:18,196 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 278 places, 368 transitions, 7744 flow [2021-03-25 09:31:18,287 INFO L129 PetriNetUnfolder]: 399/898 cut-off events. [2021-03-25 09:31:18,287 INFO L130 PetriNetUnfolder]: For 16416/16419 co-relation queries the response was YES. [2021-03-25 09:31:18,294 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7574 conditions, 898 events. 399/898 cut-off events. For 16416/16419 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 5386 event pairs, 4 based on Foata normal form. 2/776 useless extension candidates. Maximal degree in co-relation 7410. Up to 294 conditions per place. [2021-03-25 09:31:18,302 INFO L142 LiptonReduction]: Number of co-enabled transitions 1720 [2021-03-25 09:31:18,369 INFO L154 LiptonReduction]: Checked pairs total: 8 [2021-03-25 09:31:18,369 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 09:31:18,369 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 176 [2021-03-25 09:31:18,370 INFO L480 AbstractCegarLoop]: Abstraction has has 278 places, 368 transitions, 7768 flow [2021-03-25 09:31:18,370 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:18,370 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:18,370 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:18,370 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-03-25 09:31:18,370 INFO L428 AbstractCegarLoop]: === Iteration 67 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:18,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:18,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1999080951, now seen corresponding path program 4 times [2021-03-25 09:31:18,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:18,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196251338] [2021-03-25 09:31:18,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:18,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:18,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:18,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:18,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:18,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:18,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:18,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:18,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:18,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:18,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:18,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:18,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:18,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:18,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:18,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:18,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:18,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:18,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:18,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:18,457 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:18,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:18,461 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:31:18,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:18,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:18,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196251338] [2021-03-25 09:31:18,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:18,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:31:18,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770741874] [2021-03-25 09:31:18,463 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:31:18,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:18,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:31:18,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:31:18,464 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 113 [2021-03-25 09:31:18,464 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 368 transitions, 7768 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:18,464 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:18,464 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 113 [2021-03-25 09:31:18,464 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:18,855 INFO L129 PetriNetUnfolder]: 461/998 cut-off events. [2021-03-25 09:31:18,856 INFO L130 PetriNetUnfolder]: For 17940/17950 co-relation queries the response was YES. [2021-03-25 09:31:18,862 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8752 conditions, 998 events. 461/998 cut-off events. For 17940/17950 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 5964 event pairs, 21 based on Foata normal form. 11/878 useless extension candidates. Maximal degree in co-relation 8579. Up to 553 conditions per place. [2021-03-25 09:31:18,865 INFO L132 encePairwiseOnDemand]: 94/113 looper letters, 273 selfloop transitions, 98 changer transitions 0/389 dead transitions. [2021-03-25 09:31:18,866 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 389 transitions, 8938 flow [2021-03-25 09:31:18,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:31:18,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:31:18,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 654 transitions. [2021-03-25 09:31:18,866 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4823008849557522 [2021-03-25 09:31:18,867 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 654 transitions. [2021-03-25 09:31:18,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 654 transitions. [2021-03-25 09:31:18,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:18,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 654 transitions. [2021-03-25 09:31:18,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 54.5) internal successors, (654), 12 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:18,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 113.0) internal successors, (1469), 13 states have internal predecessors, (1469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:18,868 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 113.0) internal successors, (1469), 13 states have internal predecessors, (1469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:18,868 INFO L185 Difference]: Start difference. First operand has 278 places, 368 transitions, 7768 flow. Second operand 12 states and 654 transitions. [2021-03-25 09:31:18,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 389 transitions, 8938 flow [2021-03-25 09:31:18,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 389 transitions, 8454 flow, removed 235 selfloop flow, removed 2 redundant places. [2021-03-25 09:31:18,974 INFO L241 Difference]: Finished difference. Result has 291 places, 380 transitions, 7960 flow [2021-03-25 09:31:18,975 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=7284, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=368, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=7960, PETRI_PLACES=291, PETRI_TRANSITIONS=380} [2021-03-25 09:31:18,975 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 230 predicate places. [2021-03-25 09:31:18,975 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:18,975 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 291 places, 380 transitions, 7960 flow [2021-03-25 09:31:18,975 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 291 places, 380 transitions, 7960 flow [2021-03-25 09:31:18,978 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 291 places, 380 transitions, 7960 flow [2021-03-25 09:31:19,074 INFO L129 PetriNetUnfolder]: 404/904 cut-off events. [2021-03-25 09:31:19,074 INFO L130 PetriNetUnfolder]: For 18107/18126 co-relation queries the response was YES. [2021-03-25 09:31:19,081 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7561 conditions, 904 events. 404/904 cut-off events. For 18107/18126 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 5504 event pairs, 19 based on Foata normal form. 1/781 useless extension candidates. Maximal degree in co-relation 7387. Up to 269 conditions per place. [2021-03-25 09:31:19,090 INFO L142 LiptonReduction]: Number of co-enabled transitions 1836 [2021-03-25 09:31:19,107 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:19,107 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:19,108 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 133 [2021-03-25 09:31:19,108 INFO L480 AbstractCegarLoop]: Abstraction has has 291 places, 380 transitions, 7960 flow [2021-03-25 09:31:19,108 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:19,108 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:19,108 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:19,108 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-03-25 09:31:19,108 INFO L428 AbstractCegarLoop]: === Iteration 68 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:19,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:19,108 INFO L82 PathProgramCache]: Analyzing trace with hash 371233229, now seen corresponding path program 5 times [2021-03-25 09:31:19,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:19,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860158318] [2021-03-25 09:31:19,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:19,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:19,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:19,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:19,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:19,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:19,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:19,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:19,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:19,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:19,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:19,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:19,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:19,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:19,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:19,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:19,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:19,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:19,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:19,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:19,182 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:19,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:19,196 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:31:19,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:19,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:19,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860158318] [2021-03-25 09:31:19,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:19,198 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:31:19,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947562407] [2021-03-25 09:31:19,198 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:31:19,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:19,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:31:19,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:31:19,199 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 113 [2021-03-25 09:31:19,199 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 380 transitions, 7960 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:19,199 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:19,199 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 113 [2021-03-25 09:31:19,199 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:19,646 INFO L129 PetriNetUnfolder]: 506/1094 cut-off events. [2021-03-25 09:31:19,646 INFO L130 PetriNetUnfolder]: For 21667/21673 co-relation queries the response was YES. [2021-03-25 09:31:19,655 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9623 conditions, 1094 events. 506/1094 cut-off events. For 21667/21673 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 6709 event pairs, 8 based on Foata normal form. 7/956 useless extension candidates. Maximal degree in co-relation 9437. Up to 561 conditions per place. [2021-03-25 09:31:19,659 INFO L132 encePairwiseOnDemand]: 96/113 looper letters, 271 selfloop transitions, 132 changer transitions 11/432 dead transitions. [2021-03-25 09:31:19,659 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 432 transitions, 9975 flow [2021-03-25 09:31:19,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:31:19,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:31:19,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 660 transitions. [2021-03-25 09:31:19,660 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.48672566371681414 [2021-03-25 09:31:19,660 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 660 transitions. [2021-03-25 09:31:19,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 660 transitions. [2021-03-25 09:31:19,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:19,660 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 660 transitions. [2021-03-25 09:31:19,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 55.0) internal successors, (660), 12 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:19,661 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 113.0) internal successors, (1469), 13 states have internal predecessors, (1469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:19,661 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 113.0) internal successors, (1469), 13 states have internal predecessors, (1469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:19,661 INFO L185 Difference]: Start difference. First operand has 291 places, 380 transitions, 7960 flow. Second operand 12 states and 660 transitions. [2021-03-25 09:31:19,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 432 transitions, 9975 flow [2021-03-25 09:31:19,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 432 transitions, 9787 flow, removed 44 selfloop flow, removed 6 redundant places. [2021-03-25 09:31:19,828 INFO L241 Difference]: Finished difference. Result has 298 places, 408 transitions, 9018 flow [2021-03-25 09:31:19,828 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=7782, PETRI_DIFFERENCE_MINUEND_PLACES=285, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=380, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=99, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=9018, PETRI_PLACES=298, PETRI_TRANSITIONS=408} [2021-03-25 09:31:19,828 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 237 predicate places. [2021-03-25 09:31:19,829 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:19,829 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 298 places, 408 transitions, 9018 flow [2021-03-25 09:31:19,829 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 298 places, 408 transitions, 9018 flow [2021-03-25 09:31:19,832 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 295 places, 408 transitions, 9018 flow [2021-03-25 09:31:19,953 INFO L129 PetriNetUnfolder]: 434/960 cut-off events. [2021-03-25 09:31:19,953 INFO L130 PetriNetUnfolder]: For 22020/22040 co-relation queries the response was YES. [2021-03-25 09:31:19,962 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8577 conditions, 960 events. 434/960 cut-off events. For 22020/22040 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 5908 event pairs, 14 based on Foata normal form. 2/836 useless extension candidates. Maximal degree in co-relation 8396. Up to 313 conditions per place. [2021-03-25 09:31:19,974 INFO L142 LiptonReduction]: Number of co-enabled transitions 1872 [2021-03-25 09:31:19,995 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:19,995 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:19,995 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 166 [2021-03-25 09:31:19,996 INFO L480 AbstractCegarLoop]: Abstraction has has 295 places, 408 transitions, 9018 flow [2021-03-25 09:31:19,996 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:19,996 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:19,996 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:19,996 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-03-25 09:31:19,996 INFO L428 AbstractCegarLoop]: === Iteration 69 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:19,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:19,996 INFO L82 PathProgramCache]: Analyzing trace with hash 1393630175, now seen corresponding path program 6 times [2021-03-25 09:31:19,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:19,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969828215] [2021-03-25 09:31:19,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:19,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:20,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:20,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:20,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:20,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:20,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:20,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:20,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:20,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:20,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:20,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:20,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:20,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:20,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:20,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:20,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:20,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:20,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:20,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:20,086 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:20,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:20,090 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:31:20,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:20,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:20,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969828215] [2021-03-25 09:31:20,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:20,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:31:20,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463767509] [2021-03-25 09:31:20,093 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:31:20,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:20,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:31:20,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:31:20,094 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 113 [2021-03-25 09:31:20,094 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 408 transitions, 9018 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:20,094 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:20,094 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 113 [2021-03-25 09:31:20,094 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:20,559 INFO L129 PetriNetUnfolder]: 498/1073 cut-off events. [2021-03-25 09:31:20,559 INFO L130 PetriNetUnfolder]: For 22964/22976 co-relation queries the response was YES. [2021-03-25 09:31:20,567 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9857 conditions, 1073 events. 498/1073 cut-off events. For 22964/22976 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 6489 event pairs, 9 based on Foata normal form. 13/945 useless extension candidates. Maximal degree in co-relation 9669. Up to 594 conditions per place. [2021-03-25 09:31:20,572 INFO L132 encePairwiseOnDemand]: 94/113 looper letters, 293 selfloop transitions, 106 changer transitions 4/421 dead transitions. [2021-03-25 09:31:20,572 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 421 transitions, 10012 flow [2021-03-25 09:31:20,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:31:20,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:31:20,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 757 transitions. [2021-03-25 09:31:20,573 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.47850821744627053 [2021-03-25 09:31:20,573 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 757 transitions. [2021-03-25 09:31:20,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 757 transitions. [2021-03-25 09:31:20,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:20,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 757 transitions. [2021-03-25 09:31:20,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 54.07142857142857) internal successors, (757), 14 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:20,574 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 113.0) internal successors, (1695), 15 states have internal predecessors, (1695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:20,574 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 113.0) internal successors, (1695), 15 states have internal predecessors, (1695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:20,574 INFO L185 Difference]: Start difference. First operand has 295 places, 408 transitions, 9018 flow. Second operand 14 states and 757 transitions. [2021-03-25 09:31:20,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 421 transitions, 10012 flow [2021-03-25 09:31:20,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 421 transitions, 9547 flow, removed 167 selfloop flow, removed 8 redundant places. [2021-03-25 09:31:20,717 INFO L241 Difference]: Finished difference. Result has 302 places, 407 transitions, 8836 flow [2021-03-25 09:31:20,717 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=8553, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=8836, PETRI_PLACES=302, PETRI_TRANSITIONS=407} [2021-03-25 09:31:20,717 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 241 predicate places. [2021-03-25 09:31:20,717 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:20,718 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 302 places, 407 transitions, 8836 flow [2021-03-25 09:31:20,718 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 302 places, 407 transitions, 8836 flow [2021-03-25 09:31:20,720 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 302 places, 407 transitions, 8836 flow [2021-03-25 09:31:20,826 INFO L129 PetriNetUnfolder]: 432/963 cut-off events. [2021-03-25 09:31:20,826 INFO L130 PetriNetUnfolder]: For 19947/19966 co-relation queries the response was YES. [2021-03-25 09:31:20,833 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8482 conditions, 963 events. 432/963 cut-off events. For 19947/19966 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 5926 event pairs, 10 based on Foata normal form. 1/836 useless extension candidates. Maximal degree in co-relation 8298. Up to 307 conditions per place. [2021-03-25 09:31:20,842 INFO L142 LiptonReduction]: Number of co-enabled transitions 1860 [2021-03-25 09:31:20,862 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:20,862 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:20,862 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 145 [2021-03-25 09:31:20,862 INFO L480 AbstractCegarLoop]: Abstraction has has 302 places, 407 transitions, 8836 flow [2021-03-25 09:31:20,862 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:20,862 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:20,862 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:20,862 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-03-25 09:31:20,862 INFO L428 AbstractCegarLoop]: === Iteration 70 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:20,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:20,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1404803421, now seen corresponding path program 7 times [2021-03-25 09:31:20,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:20,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51172077] [2021-03-25 09:31:20,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:20,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:20,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:20,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:20,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:20,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:20,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:20,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:20,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:20,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:20,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:20,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:20,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:20,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:20,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:20,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:20,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:20,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:20,934 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:31:20,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:31:20,948 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:20,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:20,961 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:31:20,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:20,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:20,963 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51172077] [2021-03-25 09:31:20,963 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:20,963 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:31:20,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702575759] [2021-03-25 09:31:20,963 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:31:20,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:20,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:31:20,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:31:20,964 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 113 [2021-03-25 09:31:20,964 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 407 transitions, 8836 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:20,964 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:20,964 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 113 [2021-03-25 09:31:20,964 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:21,481 INFO L129 PetriNetUnfolder]: 503/1105 cut-off events. [2021-03-25 09:31:21,481 INFO L130 PetriNetUnfolder]: For 21844/21854 co-relation queries the response was YES. [2021-03-25 09:31:21,491 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9754 conditions, 1105 events. 503/1105 cut-off events. For 21844/21854 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 6842 event pairs, 17 based on Foata normal form. 12/966 useless extension candidates. Maximal degree in co-relation 9545. Up to 557 conditions per place. [2021-03-25 09:31:21,495 INFO L132 encePairwiseOnDemand]: 94/113 looper letters, 254 selfloop transitions, 144 changer transitions 8/424 dead transitions. [2021-03-25 09:31:21,496 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 424 transitions, 9930 flow [2021-03-25 09:31:21,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 09:31:21,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 09:31:21,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 862 transitions. [2021-03-25 09:31:21,497 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.47676991150442477 [2021-03-25 09:31:21,497 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 862 transitions. [2021-03-25 09:31:21,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 862 transitions. [2021-03-25 09:31:21,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:21,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 862 transitions. [2021-03-25 09:31:21,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 53.875) internal successors, (862), 16 states have internal predecessors, (862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:21,498 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 113.0) internal successors, (1921), 17 states have internal predecessors, (1921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:21,498 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 113.0) internal successors, (1921), 17 states have internal predecessors, (1921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:21,498 INFO L185 Difference]: Start difference. First operand has 302 places, 407 transitions, 8836 flow. Second operand 16 states and 862 transitions. [2021-03-25 09:31:21,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 424 transitions, 9930 flow [2021-03-25 09:31:21,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 424 transitions, 9390 flow, removed 145 selfloop flow, removed 16 redundant places. [2021-03-25 09:31:21,638 INFO L241 Difference]: Finished difference. Result has 306 places, 403 transitions, 8588 flow [2021-03-25 09:31:21,639 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=8304, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=143, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=8588, PETRI_PLACES=306, PETRI_TRANSITIONS=403} [2021-03-25 09:31:21,639 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 245 predicate places. [2021-03-25 09:31:21,639 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:21,639 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 306 places, 403 transitions, 8588 flow [2021-03-25 09:31:21,639 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 306 places, 403 transitions, 8588 flow [2021-03-25 09:31:21,642 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 306 places, 403 transitions, 8588 flow [2021-03-25 09:31:21,747 INFO L129 PetriNetUnfolder]: 428/962 cut-off events. [2021-03-25 09:31:21,748 INFO L130 PetriNetUnfolder]: For 19371/19391 co-relation queries the response was YES. [2021-03-25 09:31:21,755 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8370 conditions, 962 events. 428/962 cut-off events. For 19371/19391 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 5980 event pairs, 12 based on Foata normal form. 2/836 useless extension candidates. Maximal degree in co-relation 8169. Up to 302 conditions per place. [2021-03-25 09:31:21,763 INFO L142 LiptonReduction]: Number of co-enabled transitions 1838 [2021-03-25 09:31:21,783 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:21,783 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:21,783 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 144 [2021-03-25 09:31:21,783 INFO L480 AbstractCegarLoop]: Abstraction has has 306 places, 403 transitions, 8588 flow [2021-03-25 09:31:21,783 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:21,784 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:21,784 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:21,784 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-03-25 09:31:21,784 INFO L428 AbstractCegarLoop]: === Iteration 71 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:21,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:21,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1974590127, now seen corresponding path program 8 times [2021-03-25 09:31:21,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:21,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998005276] [2021-03-25 09:31:21,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:21,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:21,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:21,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:21,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:21,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:21,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:21,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:21,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:21,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:21,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:21,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:21,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:21,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:21,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:21,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:21,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:21,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:21,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:21,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:21,881 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:31:21,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:21,895 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:31:21,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:21,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:21,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998005276] [2021-03-25 09:31:21,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:21,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:31:21,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365417991] [2021-03-25 09:31:21,897 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:31:21,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:21,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:31:21,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:31:21,898 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 113 [2021-03-25 09:31:21,898 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 403 transitions, 8588 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:21,898 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:21,898 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 113 [2021-03-25 09:31:21,898 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:22,393 INFO L129 PetriNetUnfolder]: 487/1074 cut-off events. [2021-03-25 09:31:22,393 INFO L130 PetriNetUnfolder]: For 20755/20759 co-relation queries the response was YES. [2021-03-25 09:31:22,402 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9510 conditions, 1074 events. 487/1074 cut-off events. For 20755/20759 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 6627 event pairs, 22 based on Foata normal form. 5/939 useless extension candidates. Maximal degree in co-relation 9283. Up to 570 conditions per place. [2021-03-25 09:31:22,406 INFO L132 encePairwiseOnDemand]: 94/113 looper letters, 275 selfloop transitions, 115 changer transitions 9/417 dead transitions. [2021-03-25 09:31:22,406 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 417 transitions, 9523 flow [2021-03-25 09:31:22,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 09:31:22,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 09:31:22,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 861 transitions. [2021-03-25 09:31:22,407 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.476216814159292 [2021-03-25 09:31:22,407 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 861 transitions. [2021-03-25 09:31:22,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 861 transitions. [2021-03-25 09:31:22,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:22,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 861 transitions. [2021-03-25 09:31:22,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 53.8125) internal successors, (861), 16 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:22,408 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 113.0) internal successors, (1921), 17 states have internal predecessors, (1921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:22,408 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 113.0) internal successors, (1921), 17 states have internal predecessors, (1921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:22,409 INFO L185 Difference]: Start difference. First operand has 306 places, 403 transitions, 8588 flow. Second operand 16 states and 861 transitions. [2021-03-25 09:31:22,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 417 transitions, 9523 flow [2021-03-25 09:31:22,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 417 transitions, 9242 flow, removed 16 selfloop flow, removed 16 redundant places. [2021-03-25 09:31:22,543 INFO L241 Difference]: Finished difference. Result has 307 places, 395 transitions, 8387 flow [2021-03-25 09:31:22,544 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=8311, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=403, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=8387, PETRI_PLACES=307, PETRI_TRANSITIONS=395} [2021-03-25 09:31:22,544 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 246 predicate places. [2021-03-25 09:31:22,544 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:22,544 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 307 places, 395 transitions, 8387 flow [2021-03-25 09:31:22,544 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 307 places, 395 transitions, 8387 flow [2021-03-25 09:31:22,547 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 307 places, 395 transitions, 8387 flow [2021-03-25 09:31:22,646 INFO L129 PetriNetUnfolder]: 419/945 cut-off events. [2021-03-25 09:31:22,646 INFO L130 PetriNetUnfolder]: For 18929/18948 co-relation queries the response was YES. [2021-03-25 09:31:22,653 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8224 conditions, 945 events. 419/945 cut-off events. For 18929/18948 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 5832 event pairs, 8 based on Foata normal form. 1/822 useless extension candidates. Maximal degree in co-relation 8012. Up to 296 conditions per place. [2021-03-25 09:31:22,661 INFO L142 LiptonReduction]: Number of co-enabled transitions 1800 [2021-03-25 09:31:22,680 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:22,680 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:22,680 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 136 [2021-03-25 09:31:22,680 INFO L480 AbstractCegarLoop]: Abstraction has has 307 places, 395 transitions, 8387 flow [2021-03-25 09:31:22,680 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:22,680 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:22,680 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:22,681 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-03-25 09:31:22,681 INFO L428 AbstractCegarLoop]: === Iteration 72 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:22,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:22,681 INFO L82 PathProgramCache]: Analyzing trace with hash -438229625, now seen corresponding path program 9 times [2021-03-25 09:31:22,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:22,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719270849] [2021-03-25 09:31:22,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:22,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:22,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:22,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:22,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:22,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:22,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:22,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:22,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:22,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:22,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:22,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:22,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:22,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:22,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:22,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:22,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:22,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:22,740 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:31:22,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:31:22,752 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:22,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:22,766 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:31:22,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:22,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:22,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719270849] [2021-03-25 09:31:22,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:22,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:31:22,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437097847] [2021-03-25 09:31:22,768 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:31:22,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:22,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:31:22,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:31:22,769 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 113 [2021-03-25 09:31:22,769 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 395 transitions, 8387 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:22,769 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:22,769 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 113 [2021-03-25 09:31:22,769 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:23,265 INFO L129 PetriNetUnfolder]: 501/1101 cut-off events. [2021-03-25 09:31:23,265 INFO L130 PetriNetUnfolder]: For 22268/22281 co-relation queries the response was YES. [2021-03-25 09:31:23,274 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9865 conditions, 1101 events. 501/1101 cut-off events. For 22268/22281 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 6816 event pairs, 21 based on Foata normal form. 12/968 useless extension candidates. Maximal degree in co-relation 9638. Up to 517 conditions per place. [2021-03-25 09:31:23,278 INFO L132 encePairwiseOnDemand]: 95/113 looper letters, 216 selfloop transitions, 199 changer transitions 5/438 dead transitions. [2021-03-25 09:31:23,278 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 438 transitions, 10478 flow [2021-03-25 09:31:23,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 09:31:23,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 09:31:23,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 879 transitions. [2021-03-25 09:31:23,279 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.48617256637168144 [2021-03-25 09:31:23,280 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 879 transitions. [2021-03-25 09:31:23,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 879 transitions. [2021-03-25 09:31:23,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:23,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 879 transitions. [2021-03-25 09:31:23,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 54.9375) internal successors, (879), 16 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:23,281 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 113.0) internal successors, (1921), 17 states have internal predecessors, (1921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:23,281 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 113.0) internal successors, (1921), 17 states have internal predecessors, (1921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:23,281 INFO L185 Difference]: Start difference. First operand has 307 places, 395 transitions, 8387 flow. Second operand 16 states and 879 transitions. [2021-03-25 09:31:23,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 438 transitions, 10478 flow [2021-03-25 09:31:23,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 438 transitions, 10149 flow, removed 14 selfloop flow, removed 20 redundant places. [2021-03-25 09:31:23,421 INFO L241 Difference]: Finished difference. Result has 306 places, 421 transitions, 9616 flow [2021-03-25 09:31:23,421 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=8072, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=395, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=176, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=9616, PETRI_PLACES=306, PETRI_TRANSITIONS=421} [2021-03-25 09:31:23,421 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 245 predicate places. [2021-03-25 09:31:23,422 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:23,422 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 306 places, 421 transitions, 9616 flow [2021-03-25 09:31:23,422 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 306 places, 421 transitions, 9616 flow [2021-03-25 09:31:23,425 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 305 places, 421 transitions, 9616 flow [2021-03-25 09:31:23,539 INFO L129 PetriNetUnfolder]: 446/998 cut-off events. [2021-03-25 09:31:23,539 INFO L130 PetriNetUnfolder]: For 21548/21567 co-relation queries the response was YES. [2021-03-25 09:31:23,547 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8941 conditions, 998 events. 446/998 cut-off events. For 21548/21567 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 6247 event pairs, 11 based on Foata normal form. 1/863 useless extension candidates. Maximal degree in co-relation 8728. Up to 322 conditions per place. [2021-03-25 09:31:23,557 INFO L142 LiptonReduction]: Number of co-enabled transitions 1882 [2021-03-25 09:31:23,578 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:23,578 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:23,578 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 156 [2021-03-25 09:31:23,578 INFO L480 AbstractCegarLoop]: Abstraction has has 305 places, 421 transitions, 9616 flow [2021-03-25 09:31:23,578 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:23,578 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:23,578 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:23,578 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-03-25 09:31:23,578 INFO L428 AbstractCegarLoop]: === Iteration 73 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:23,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:23,579 INFO L82 PathProgramCache]: Analyzing trace with hash -1472155557, now seen corresponding path program 10 times [2021-03-25 09:31:23,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:23,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911939842] [2021-03-25 09:31:23,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:23,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:23,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:23,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:23,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:23,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:23,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:23,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:23,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:23,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:23,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:23,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:23,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:23,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:23,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:23,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:23,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:23,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:23,653 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:31:23,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:31:23,666 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:23,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:23,678 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:31:23,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:23,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:23,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911939842] [2021-03-25 09:31:23,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:23,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:31:23,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826614841] [2021-03-25 09:31:23,681 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:31:23,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:23,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:31:23,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:31:23,681 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 113 [2021-03-25 09:31:23,682 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 421 transitions, 9616 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:23,682 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:23,682 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 113 [2021-03-25 09:31:23,682 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:24,252 INFO L129 PetriNetUnfolder]: 506/1116 cut-off events. [2021-03-25 09:31:24,252 INFO L130 PetriNetUnfolder]: For 24079/24091 co-relation queries the response was YES. [2021-03-25 09:31:24,261 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10336 conditions, 1116 events. 506/1116 cut-off events. For 24079/24091 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 6980 event pairs, 13 based on Foata normal form. 14/984 useless extension candidates. Maximal degree in co-relation 10109. Up to 483 conditions per place. [2021-03-25 09:31:24,266 INFO L132 encePairwiseOnDemand]: 94/113 looper letters, 186 selfloop transitions, 222 changer transitions 21/447 dead transitions. [2021-03-25 09:31:24,266 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 447 transitions, 11095 flow [2021-03-25 09:31:24,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-25 09:31:24,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-25 09:31:24,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 932 transitions. [2021-03-25 09:31:24,267 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4851639770952629 [2021-03-25 09:31:24,267 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 932 transitions. [2021-03-25 09:31:24,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 932 transitions. [2021-03-25 09:31:24,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:24,267 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 932 transitions. [2021-03-25 09:31:24,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 54.8235294117647) internal successors, (932), 17 states have internal predecessors, (932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:24,269 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 113.0) internal successors, (2034), 18 states have internal predecessors, (2034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:24,269 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 113.0) internal successors, (2034), 18 states have internal predecessors, (2034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:24,269 INFO L185 Difference]: Start difference. First operand has 305 places, 421 transitions, 9616 flow. Second operand 17 states and 932 transitions. [2021-03-25 09:31:24,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 447 transitions, 11095 flow [2021-03-25 09:31:24,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 447 transitions, 10379 flow, removed 262 selfloop flow, removed 12 redundant places. [2021-03-25 09:31:24,419 INFO L241 Difference]: Finished difference. Result has 315 places, 412 transitions, 9409 flow [2021-03-25 09:31:24,419 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=8904, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=219, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=9409, PETRI_PLACES=315, PETRI_TRANSITIONS=412} [2021-03-25 09:31:24,419 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 254 predicate places. [2021-03-25 09:31:24,419 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:24,419 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 315 places, 412 transitions, 9409 flow [2021-03-25 09:31:24,420 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 315 places, 412 transitions, 9409 flow [2021-03-25 09:31:24,423 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 315 places, 412 transitions, 9409 flow [2021-03-25 09:31:24,533 INFO L129 PetriNetUnfolder]: 437/966 cut-off events. [2021-03-25 09:31:24,533 INFO L130 PetriNetUnfolder]: For 23614/23667 co-relation queries the response was YES. [2021-03-25 09:31:24,541 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8971 conditions, 966 events. 437/966 cut-off events. For 23614/23667 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 5937 event pairs, 9 based on Foata normal form. 4/840 useless extension candidates. Maximal degree in co-relation 8756. Up to 307 conditions per place. [2021-03-25 09:31:24,550 INFO L142 LiptonReduction]: Number of co-enabled transitions 1850 [2021-03-25 09:31:24,571 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:24,571 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:24,572 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 153 [2021-03-25 09:31:24,572 INFO L480 AbstractCegarLoop]: Abstraction has has 315 places, 412 transitions, 9409 flow [2021-03-25 09:31:24,572 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:24,572 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:24,572 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:24,572 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-03-25 09:31:24,572 INFO L428 AbstractCegarLoop]: === Iteration 74 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:24,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:24,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1986422363, now seen corresponding path program 11 times [2021-03-25 09:31:24,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:24,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624175675] [2021-03-25 09:31:24,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:24,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:24,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:24,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:24,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:24,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:24,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:24,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:24,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:24,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:24,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:24,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:24,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:24,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:24,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:24,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:24,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:24,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:24,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:24,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:24,648 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:24,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:24,661 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:31:24,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:24,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:24,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624175675] [2021-03-25 09:31:24,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:24,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:31:24,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873440371] [2021-03-25 09:31:24,664 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:31:24,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:24,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:31:24,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:31:24,664 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 113 [2021-03-25 09:31:24,665 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 412 transitions, 9409 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:24,665 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:24,665 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 113 [2021-03-25 09:31:24,665 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:25,141 INFO L129 PetriNetUnfolder]: 510/1121 cut-off events. [2021-03-25 09:31:25,141 INFO L130 PetriNetUnfolder]: For 26503/26509 co-relation queries the response was YES. [2021-03-25 09:31:25,151 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10724 conditions, 1121 events. 510/1121 cut-off events. For 26503/26509 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 7038 event pairs, 12 based on Foata normal form. 8/983 useless extension candidates. Maximal degree in co-relation 10494. Up to 556 conditions per place. [2021-03-25 09:31:25,155 INFO L132 encePairwiseOnDemand]: 96/113 looper letters, 267 selfloop transitions, 154 changer transitions 17/456 dead transitions. [2021-03-25 09:31:25,156 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 456 transitions, 11520 flow [2021-03-25 09:31:25,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:31:25,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:31:25,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 760 transitions. [2021-03-25 09:31:25,157 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4804045512010114 [2021-03-25 09:31:25,157 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 760 transitions. [2021-03-25 09:31:25,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 760 transitions. [2021-03-25 09:31:25,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:25,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 760 transitions. [2021-03-25 09:31:25,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 54.285714285714285) internal successors, (760), 14 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:25,158 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 113.0) internal successors, (1695), 15 states have internal predecessors, (1695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:25,158 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 113.0) internal successors, (1695), 15 states have internal predecessors, (1695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:25,158 INFO L185 Difference]: Start difference. First operand has 315 places, 412 transitions, 9409 flow. Second operand 14 states and 760 transitions. [2021-03-25 09:31:25,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 456 transitions, 11520 flow [2021-03-25 09:31:25,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 456 transitions, 10812 flow, removed 97 selfloop flow, removed 24 redundant places. [2021-03-25 09:31:25,314 INFO L241 Difference]: Finished difference. Result has 311 places, 425 transitions, 9753 flow [2021-03-25 09:31:25,314 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=8793, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=138, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=9753, PETRI_PLACES=311, PETRI_TRANSITIONS=425} [2021-03-25 09:31:25,314 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 250 predicate places. [2021-03-25 09:31:25,314 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:25,314 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 311 places, 425 transitions, 9753 flow [2021-03-25 09:31:25,315 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 311 places, 425 transitions, 9753 flow [2021-03-25 09:31:25,318 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 307 places, 425 transitions, 9753 flow [2021-03-25 09:31:25,431 INFO L129 PetriNetUnfolder]: 429/951 cut-off events. [2021-03-25 09:31:25,431 INFO L130 PetriNetUnfolder]: For 25262/25277 co-relation queries the response was YES. [2021-03-25 09:31:25,439 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9230 conditions, 951 events. 429/951 cut-off events. For 25262/25277 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 5872 event pairs, 7 based on Foata normal form. 1/835 useless extension candidates. Maximal degree in co-relation 9083. Up to 307 conditions per place. [2021-03-25 09:31:25,448 INFO L142 LiptonReduction]: Number of co-enabled transitions 1862 [2021-03-25 09:31:25,469 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:25,470 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:25,470 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 156 [2021-03-25 09:31:25,470 INFO L480 AbstractCegarLoop]: Abstraction has has 307 places, 425 transitions, 9753 flow [2021-03-25 09:31:25,470 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:25,470 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:25,470 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:25,470 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-03-25 09:31:25,470 INFO L428 AbstractCegarLoop]: === Iteration 75 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:25,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:25,470 INFO L82 PathProgramCache]: Analyzing trace with hash 290834847, now seen corresponding path program 12 times [2021-03-25 09:31:25,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:25,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118491627] [2021-03-25 09:31:25,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:25,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:25,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:25,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:25,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:25,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:25,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:25,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:25,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:25,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:25,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:25,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:25,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:25,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:25,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:25,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:25,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:25,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:25,542 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:31:25,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:31:25,544 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:25,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:25,557 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:31:25,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:25,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:25,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118491627] [2021-03-25 09:31:25,560 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:25,560 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:31:25,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338276594] [2021-03-25 09:31:25,560 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:31:25,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:25,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:31:25,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:31:25,561 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 113 [2021-03-25 09:31:25,561 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 425 transitions, 9753 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:25,561 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:25,561 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 113 [2021-03-25 09:31:25,561 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:26,050 INFO L129 PetriNetUnfolder]: 525/1133 cut-off events. [2021-03-25 09:31:26,050 INFO L130 PetriNetUnfolder]: For 31043/31049 co-relation queries the response was YES. [2021-03-25 09:31:26,059 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11357 conditions, 1133 events. 525/1133 cut-off events. For 31043/31049 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 6975 event pairs, 11 based on Foata normal form. 7/998 useless extension candidates. Maximal degree in co-relation 11207. Up to 580 conditions per place. [2021-03-25 09:31:26,064 INFO L132 encePairwiseOnDemand]: 95/113 looper letters, 283 selfloop transitions, 164 changer transitions 0/465 dead transitions. [2021-03-25 09:31:26,064 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 465 transitions, 11847 flow [2021-03-25 09:31:26,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:31:26,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:31:26,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 715 transitions. [2021-03-25 09:31:26,065 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.48672566371681414 [2021-03-25 09:31:26,065 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 715 transitions. [2021-03-25 09:31:26,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 715 transitions. [2021-03-25 09:31:26,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:26,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 715 transitions. [2021-03-25 09:31:26,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 55.0) internal successors, (715), 13 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:26,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 113.0) internal successors, (1582), 14 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:26,069 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 113.0) internal successors, (1582), 14 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:26,069 INFO L185 Difference]: Start difference. First operand has 307 places, 425 transitions, 9753 flow. Second operand 13 states and 715 transitions. [2021-03-25 09:31:26,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 465 transitions, 11847 flow [2021-03-25 09:31:26,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 465 transitions, 11211 flow, removed 225 selfloop flow, removed 11 redundant places. [2021-03-25 09:31:26,232 INFO L241 Difference]: Finished difference. Result has 312 places, 452 transitions, 10607 flow [2021-03-25 09:31:26,233 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=9152, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=142, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=10607, PETRI_PLACES=312, PETRI_TRANSITIONS=452} [2021-03-25 09:31:26,233 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 251 predicate places. [2021-03-25 09:31:26,280 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:26,281 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 312 places, 452 transitions, 10607 flow [2021-03-25 09:31:26,281 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 312 places, 452 transitions, 10607 flow [2021-03-25 09:31:26,284 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 312 places, 452 transitions, 10607 flow [2021-03-25 09:31:26,414 INFO L129 PetriNetUnfolder]: 476/1053 cut-off events. [2021-03-25 09:31:26,414 INFO L130 PetriNetUnfolder]: For 29053/29072 co-relation queries the response was YES. [2021-03-25 09:31:26,423 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10252 conditions, 1053 events. 476/1053 cut-off events. For 29053/29072 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 6705 event pairs, 10 based on Foata normal form. 1/916 useless extension candidates. Maximal degree in co-relation 10043. Up to 335 conditions per place. [2021-03-25 09:31:26,434 INFO L142 LiptonReduction]: Number of co-enabled transitions 2000 [2021-03-25 09:31:26,457 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:26,458 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:26,458 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 178 [2021-03-25 09:31:26,458 INFO L480 AbstractCegarLoop]: Abstraction has has 312 places, 452 transitions, 10607 flow [2021-03-25 09:31:26,458 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:26,458 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:26,458 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:26,458 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-03-25 09:31:26,458 INFO L428 AbstractCegarLoop]: === Iteration 76 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:26,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:26,459 INFO L82 PathProgramCache]: Analyzing trace with hash 489022521, now seen corresponding path program 13 times [2021-03-25 09:31:26,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:26,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437967363] [2021-03-25 09:31:26,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:26,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:26,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:26,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:26,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:26,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:26,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:26,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:26,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:26,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:26,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:26,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:26,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:26,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:26,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:26,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:31:26,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:26,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:26,531 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:31:26,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:31:26,533 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:26,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:26,547 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:31:26,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:26,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:26,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437967363] [2021-03-25 09:31:26,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:26,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:31:26,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518925235] [2021-03-25 09:31:26,549 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:31:26,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:26,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:31:26,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:31:26,550 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 113 [2021-03-25 09:31:26,550 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 452 transitions, 10607 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:26,550 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:26,550 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 113 [2021-03-25 09:31:26,550 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:27,114 INFO L129 PetriNetUnfolder]: 563/1234 cut-off events. [2021-03-25 09:31:27,114 INFO L130 PetriNetUnfolder]: For 32836/32840 co-relation queries the response was YES. [2021-03-25 09:31:27,125 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12337 conditions, 1234 events. 563/1234 cut-off events. For 32836/32840 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 7910 event pairs, 9 based on Foata normal form. 5/1079 useless extension candidates. Maximal degree in co-relation 12111. Up to 593 conditions per place. [2021-03-25 09:31:27,131 INFO L132 encePairwiseOnDemand]: 95/113 looper letters, 280 selfloop transitions, 223 changer transitions 0/521 dead transitions. [2021-03-25 09:31:27,131 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 521 transitions, 14006 flow [2021-03-25 09:31:27,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 09:31:27,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 09:31:27,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 818 transitions. [2021-03-25 09:31:27,132 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4825958702064897 [2021-03-25 09:31:27,132 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 818 transitions. [2021-03-25 09:31:27,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 818 transitions. [2021-03-25 09:31:27,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:27,132 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 818 transitions. [2021-03-25 09:31:27,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 54.53333333333333) internal successors, (818), 15 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:27,133 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 113.0) internal successors, (1808), 16 states have internal predecessors, (1808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:27,134 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 113.0) internal successors, (1808), 16 states have internal predecessors, (1808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:27,134 INFO L185 Difference]: Start difference. First operand has 312 places, 452 transitions, 10607 flow. Second operand 15 states and 818 transitions. [2021-03-25 09:31:27,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 521 transitions, 14006 flow [2021-03-25 09:31:27,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 521 transitions, 13386 flow, removed 290 selfloop flow, removed 2 redundant places. [2021-03-25 09:31:27,338 INFO L241 Difference]: Finished difference. Result has 330 places, 509 transitions, 12978 flow [2021-03-25 09:31:27,338 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=10103, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=452, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=173, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=12978, PETRI_PLACES=330, PETRI_TRANSITIONS=509} [2021-03-25 09:31:27,338 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 269 predicate places. [2021-03-25 09:31:27,338 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:27,339 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 330 places, 509 transitions, 12978 flow [2021-03-25 09:31:27,339 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 330 places, 509 transitions, 12978 flow [2021-03-25 09:31:27,343 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 330 places, 509 transitions, 12978 flow [2021-03-25 09:31:27,504 INFO L129 PetriNetUnfolder]: 504/1139 cut-off events. [2021-03-25 09:31:27,504 INFO L130 PetriNetUnfolder]: For 32477/32484 co-relation queries the response was YES. [2021-03-25 09:31:27,514 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11257 conditions, 1139 events. 504/1139 cut-off events. For 32477/32484 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 7473 event pairs, 6 based on Foata normal form. 1/989 useless extension candidates. Maximal degree in co-relation 11030. Up to 359 conditions per place. [2021-03-25 09:31:27,526 INFO L142 LiptonReduction]: Number of co-enabled transitions 2270 [2021-03-25 09:31:27,557 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:27,557 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:27,557 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 219 [2021-03-25 09:31:27,557 INFO L480 AbstractCegarLoop]: Abstraction has has 330 places, 509 transitions, 12978 flow [2021-03-25 09:31:27,557 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:27,557 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:27,558 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:27,558 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-03-25 09:31:27,558 INFO L428 AbstractCegarLoop]: === Iteration 77 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:27,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:27,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1821873601, now seen corresponding path program 14 times [2021-03-25 09:31:27,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:27,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825464078] [2021-03-25 09:31:27,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:27,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:27,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:27,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:27,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:27,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:27,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:27,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:27,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:27,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:27,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:27,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:27,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:27,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:27,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:27,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:27,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:27,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:27,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:27,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:27,632 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:27,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:27,636 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:31:27,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:27,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:27,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825464078] [2021-03-25 09:31:27,639 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:27,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:31:27,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971350516] [2021-03-25 09:31:27,639 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:31:27,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:27,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:31:27,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:31:27,639 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 113 [2021-03-25 09:31:27,640 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 509 transitions, 12978 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:27,640 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:27,640 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 113 [2021-03-25 09:31:27,640 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:28,126 INFO L129 PetriNetUnfolder]: 573/1267 cut-off events. [2021-03-25 09:31:28,126 INFO L130 PetriNetUnfolder]: For 34624/34630 co-relation queries the response was YES. [2021-03-25 09:31:28,138 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12687 conditions, 1267 events. 573/1267 cut-off events. For 34624/34630 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 8247 event pairs, 8 based on Foata normal form. 7/1108 useless extension candidates. Maximal degree in co-relation 12445. Up to 749 conditions per place. [2021-03-25 09:31:28,144 INFO L132 encePairwiseOnDemand]: 96/113 looper letters, 449 selfloop transitions, 59 changer transitions 0/526 dead transitions. [2021-03-25 09:31:28,144 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 526 transitions, 14363 flow [2021-03-25 09:31:28,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:31:28,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:31:28,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 592 transitions. [2021-03-25 09:31:28,145 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4762670957361223 [2021-03-25 09:31:28,145 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 592 transitions. [2021-03-25 09:31:28,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 592 transitions. [2021-03-25 09:31:28,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:28,145 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 592 transitions. [2021-03-25 09:31:28,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 53.81818181818182) internal successors, (592), 11 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:28,146 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 113.0) internal successors, (1356), 12 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:28,147 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 113.0) internal successors, (1356), 12 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:28,147 INFO L185 Difference]: Start difference. First operand has 330 places, 509 transitions, 12978 flow. Second operand 11 states and 592 transitions. [2021-03-25 09:31:28,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 526 transitions, 14363 flow [2021-03-25 09:31:28,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 526 transitions, 13666 flow, removed 315 selfloop flow, removed 5 redundant places. [2021-03-25 09:31:28,352 INFO L241 Difference]: Finished difference. Result has 341 places, 520 transitions, 12799 flow [2021-03-25 09:31:28,352 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=12293, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=509, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=451, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=12799, PETRI_PLACES=341, PETRI_TRANSITIONS=520} [2021-03-25 09:31:28,352 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 280 predicate places. [2021-03-25 09:31:28,352 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:28,352 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 341 places, 520 transitions, 12799 flow [2021-03-25 09:31:28,352 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 341 places, 520 transitions, 12799 flow [2021-03-25 09:31:28,357 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 341 places, 520 transitions, 12799 flow [2021-03-25 09:31:28,533 INFO L129 PetriNetUnfolder]: 513/1160 cut-off events. [2021-03-25 09:31:28,533 INFO L130 PetriNetUnfolder]: For 32873/32908 co-relation queries the response was YES. [2021-03-25 09:31:28,543 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11196 conditions, 1160 events. 513/1160 cut-off events. For 32873/32908 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 7611 event pairs, 7 based on Foata normal form. 1/1005 useless extension candidates. Maximal degree in co-relation 10957. Up to 343 conditions per place. [2021-03-25 09:31:28,555 INFO L142 LiptonReduction]: Number of co-enabled transitions 2338 [2021-03-25 09:31:28,584 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:28,585 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:28,585 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 233 [2021-03-25 09:31:28,585 INFO L480 AbstractCegarLoop]: Abstraction has has 341 places, 520 transitions, 12799 flow [2021-03-25 09:31:28,585 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:28,585 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:28,585 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:28,585 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-03-25 09:31:28,585 INFO L428 AbstractCegarLoop]: === Iteration 78 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:28,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:28,586 INFO L82 PathProgramCache]: Analyzing trace with hash -542377499, now seen corresponding path program 15 times [2021-03-25 09:31:28,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:28,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639022057] [2021-03-25 09:31:28,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:28,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:28,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:28,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:28,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:28,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:28,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:28,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:28,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:28,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:28,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:28,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:28,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:28,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:28,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:28,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:31:28,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:28,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:28,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:28,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:28,659 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:28,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:28,663 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:31:28,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:28,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:28,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639022057] [2021-03-25 09:31:28,665 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:28,665 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:31:28,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062802917] [2021-03-25 09:31:28,665 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:31:28,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:28,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:31:28,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:31:28,666 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 113 [2021-03-25 09:31:28,666 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 520 transitions, 12799 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:28,666 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:28,666 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 113 [2021-03-25 09:31:28,666 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:29,183 INFO L129 PetriNetUnfolder]: 599/1328 cut-off events. [2021-03-25 09:31:29,183 INFO L130 PetriNetUnfolder]: For 36116/36120 co-relation queries the response was YES. [2021-03-25 09:31:29,195 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12922 conditions, 1328 events. 599/1328 cut-off events. For 36116/36120 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 8749 event pairs, 17 based on Foata normal form. 5/1153 useless extension candidates. Maximal degree in co-relation 12665. Up to 739 conditions per place. [2021-03-25 09:31:29,200 INFO L132 encePairwiseOnDemand]: 95/113 looper letters, 416 selfloop transitions, 118 changer transitions 0/552 dead transitions. [2021-03-25 09:31:29,200 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 353 places, 552 transitions, 14751 flow [2021-03-25 09:31:29,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:31:29,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:31:29,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 702 transitions. [2021-03-25 09:31:29,202 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4778761061946903 [2021-03-25 09:31:29,202 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 702 transitions. [2021-03-25 09:31:29,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 702 transitions. [2021-03-25 09:31:29,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:29,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 702 transitions. [2021-03-25 09:31:29,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 54.0) internal successors, (702), 13 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:29,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 113.0) internal successors, (1582), 14 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:29,203 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 113.0) internal successors, (1582), 14 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:29,203 INFO L185 Difference]: Start difference. First operand has 341 places, 520 transitions, 12799 flow. Second operand 13 states and 702 transitions. [2021-03-25 09:31:29,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 353 places, 552 transitions, 14751 flow [2021-03-25 09:31:29,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 350 places, 552 transitions, 14678 flow, removed 18 selfloop flow, removed 3 redundant places. [2021-03-25 09:31:29,444 INFO L241 Difference]: Finished difference. Result has 353 places, 543 transitions, 13874 flow [2021-03-25 09:31:29,444 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=12726, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=520, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=97, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=404, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=13874, PETRI_PLACES=353, PETRI_TRANSITIONS=543} [2021-03-25 09:31:29,444 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 292 predicate places. [2021-03-25 09:31:29,444 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:29,444 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 353 places, 543 transitions, 13874 flow [2021-03-25 09:31:29,444 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 353 places, 543 transitions, 13874 flow [2021-03-25 09:31:29,449 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 353 places, 543 transitions, 13874 flow [2021-03-25 09:31:29,619 INFO L129 PetriNetUnfolder]: 536/1220 cut-off events. [2021-03-25 09:31:29,619 INFO L130 PetriNetUnfolder]: For 35500/35535 co-relation queries the response was YES. [2021-03-25 09:31:29,630 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11905 conditions, 1220 events. 536/1220 cut-off events. For 35500/35535 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 8195 event pairs, 6 based on Foata normal form. 1/1054 useless extension candidates. Maximal degree in co-relation 11652. Up to 360 conditions per place. [2021-03-25 09:31:29,643 INFO L142 LiptonReduction]: Number of co-enabled transitions 2486 [2021-03-25 09:31:29,677 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:29,677 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:29,677 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 233 [2021-03-25 09:31:29,677 INFO L480 AbstractCegarLoop]: Abstraction has has 353 places, 543 transitions, 13874 flow [2021-03-25 09:31:29,677 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:29,677 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:29,677 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:29,677 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-03-25 09:31:29,678 INFO L428 AbstractCegarLoop]: === Iteration 79 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:29,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:29,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1210632063, now seen corresponding path program 16 times [2021-03-25 09:31:29,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:29,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259525360] [2021-03-25 09:31:29,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:29,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:29,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:29,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:29,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:29,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:29,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:29,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:29,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:29,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:29,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:29,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:29,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:29,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:29,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:29,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:31:29,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:29,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:29,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:29,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:29,763 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:29,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:29,776 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:31:29,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:29,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:29,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259525360] [2021-03-25 09:31:29,778 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:29,778 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:31:29,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860036195] [2021-03-25 09:31:29,778 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:31:29,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:29,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:31:29,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:31:29,779 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 113 [2021-03-25 09:31:29,779 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 543 transitions, 13874 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:29,779 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:29,779 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 113 [2021-03-25 09:31:29,779 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:30,396 INFO L129 PetriNetUnfolder]: 613/1359 cut-off events. [2021-03-25 09:31:30,396 INFO L130 PetriNetUnfolder]: For 38442/38454 co-relation queries the response was YES. [2021-03-25 09:31:30,409 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13445 conditions, 1359 events. 613/1359 cut-off events. For 38442/38454 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 9008 event pairs, 6 based on Foata normal form. 13/1185 useless extension candidates. Maximal degree in co-relation 13182. Up to 759 conditions per place. [2021-03-25 09:31:30,415 INFO L132 encePairwiseOnDemand]: 95/113 looper letters, 456 selfloop transitions, 97 changer transitions 0/571 dead transitions. [2021-03-25 09:31:30,415 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 571 transitions, 15611 flow [2021-03-25 09:31:30,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 09:31:30,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 09:31:30,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 804 transitions. [2021-03-25 09:31:30,416 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4743362831858407 [2021-03-25 09:31:30,416 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 804 transitions. [2021-03-25 09:31:30,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 804 transitions. [2021-03-25 09:31:30,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:30,416 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 804 transitions. [2021-03-25 09:31:30,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 53.6) internal successors, (804), 15 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:30,417 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 113.0) internal successors, (1808), 16 states have internal predecessors, (1808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:30,417 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 113.0) internal successors, (1808), 16 states have internal predecessors, (1808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:30,417 INFO L185 Difference]: Start difference. First operand has 353 places, 543 transitions, 13874 flow. Second operand 15 states and 804 transitions. [2021-03-25 09:31:30,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 367 places, 571 transitions, 15611 flow [2021-03-25 09:31:30,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 571 transitions, 15458 flow, removed 51 selfloop flow, removed 6 redundant places. [2021-03-25 09:31:30,730 INFO L241 Difference]: Finished difference. Result has 365 places, 561 transitions, 14538 flow [2021-03-25 09:31:30,731 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=13727, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=543, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=14538, PETRI_PLACES=365, PETRI_TRANSITIONS=561} [2021-03-25 09:31:30,731 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 304 predicate places. [2021-03-25 09:31:30,731 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:30,731 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 365 places, 561 transitions, 14538 flow [2021-03-25 09:31:30,731 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 365 places, 561 transitions, 14538 flow [2021-03-25 09:31:30,736 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 365 places, 561 transitions, 14538 flow [2021-03-25 09:31:30,920 INFO L129 PetriNetUnfolder]: 563/1314 cut-off events. [2021-03-25 09:31:30,920 INFO L130 PetriNetUnfolder]: For 36643/36684 co-relation queries the response was YES. [2021-03-25 09:31:30,932 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12508 conditions, 1314 events. 563/1314 cut-off events. For 36643/36684 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 9054 event pairs, 6 based on Foata normal form. 2/1127 useless extension candidates. Maximal degree in co-relation 12235. Up to 370 conditions per place. [2021-03-25 09:31:30,947 INFO L142 LiptonReduction]: Number of co-enabled transitions 2540 [2021-03-25 09:31:30,982 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:30,982 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:30,982 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 251 [2021-03-25 09:31:30,982 INFO L480 AbstractCegarLoop]: Abstraction has has 365 places, 561 transitions, 14538 flow [2021-03-25 09:31:30,983 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:30,983 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:30,983 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:30,983 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-03-25 09:31:30,983 INFO L428 AbstractCegarLoop]: === Iteration 80 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:30,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:30,983 INFO L82 PathProgramCache]: Analyzing trace with hash -358775331, now seen corresponding path program 17 times [2021-03-25 09:31:30,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:30,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919801145] [2021-03-25 09:31:30,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:30,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:30,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:30,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:30,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:30,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:31,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:31,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:31,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:31,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:31,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:31,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:31,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:31,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:31,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:31,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:31:31,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:31,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:31,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:31,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:31,070 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:31,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:31,085 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:31:31,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:31,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:31,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919801145] [2021-03-25 09:31:31,087 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:31,087 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:31:31,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69223188] [2021-03-25 09:31:31,087 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:31:31,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:31,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:31:31,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:31:31,088 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 113 [2021-03-25 09:31:31,088 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 365 places, 561 transitions, 14538 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:31,088 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:31,088 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 113 [2021-03-25 09:31:31,088 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:31,714 INFO L129 PetriNetUnfolder]: 631/1416 cut-off events. [2021-03-25 09:31:31,715 INFO L130 PetriNetUnfolder]: For 40341/40351 co-relation queries the response was YES. [2021-03-25 09:31:31,729 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13945 conditions, 1416 events. 631/1416 cut-off events. For 40341/40351 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 9575 event pairs, 11 based on Foata normal form. 11/1224 useless extension candidates. Maximal degree in co-relation 13667. Up to 756 conditions per place. [2021-03-25 09:31:31,735 INFO L132 encePairwiseOnDemand]: 94/113 looper letters, 446 selfloop transitions, 121 changer transitions 1/586 dead transitions. [2021-03-25 09:31:31,735 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 586 transitions, 16386 flow [2021-03-25 09:31:31,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 09:31:31,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 09:31:31,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 807 transitions. [2021-03-25 09:31:31,736 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4761061946902655 [2021-03-25 09:31:31,736 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 807 transitions. [2021-03-25 09:31:31,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 807 transitions. [2021-03-25 09:31:31,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:31,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 807 transitions. [2021-03-25 09:31:31,737 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 53.8) internal successors, (807), 15 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:31,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 113.0) internal successors, (1808), 16 states have internal predecessors, (1808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:31,738 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 113.0) internal successors, (1808), 16 states have internal predecessors, (1808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:31,738 INFO L185 Difference]: Start difference. First operand has 365 places, 561 transitions, 14538 flow. Second operand 15 states and 807 transitions. [2021-03-25 09:31:31,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 586 transitions, 16386 flow [2021-03-25 09:31:32,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 586 transitions, 15824 flow, removed 256 selfloop flow, removed 6 redundant places. [2021-03-25 09:31:32,026 INFO L241 Difference]: Finished difference. Result has 378 places, 575 transitions, 14936 flow [2021-03-25 09:31:32,026 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=14188, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=561, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=109, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=446, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=14936, PETRI_PLACES=378, PETRI_TRANSITIONS=575} [2021-03-25 09:31:32,026 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 317 predicate places. [2021-03-25 09:31:32,026 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:32,026 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 378 places, 575 transitions, 14936 flow [2021-03-25 09:31:32,027 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 378 places, 575 transitions, 14936 flow [2021-03-25 09:31:32,031 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 378 places, 575 transitions, 14936 flow [2021-03-25 09:31:32,227 INFO L129 PetriNetUnfolder]: 564/1305 cut-off events. [2021-03-25 09:31:32,227 INFO L130 PetriNetUnfolder]: For 37918/37991 co-relation queries the response was YES. [2021-03-25 09:31:32,240 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12572 conditions, 1305 events. 564/1305 cut-off events. For 37918/37991 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 9081 event pairs, 6 based on Foata normal form. 4/1122 useless extension candidates. Maximal degree in co-relation 12289. Up to 377 conditions per place. [2021-03-25 09:31:32,255 INFO L142 LiptonReduction]: Number of co-enabled transitions 2624 [2021-03-25 09:31:32,293 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:32,293 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:32,293 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 267 [2021-03-25 09:31:32,293 INFO L480 AbstractCegarLoop]: Abstraction has has 378 places, 575 transitions, 14936 flow [2021-03-25 09:31:32,293 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:32,293 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:32,293 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:32,293 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-03-25 09:31:32,293 INFO L428 AbstractCegarLoop]: === Iteration 81 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:32,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:32,294 INFO L82 PathProgramCache]: Analyzing trace with hash -928275803, now seen corresponding path program 18 times [2021-03-25 09:31:32,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:32,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302818176] [2021-03-25 09:31:32,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:32,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:32,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:32,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:32,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:32,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:32,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:32,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:32,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:32,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:32,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:32,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:32,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:32,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:32,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:32,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:31:32,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:32,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:32,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:32,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:32,380 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:31:32,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:32,389 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:31:32,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:32,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:32,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302818176] [2021-03-25 09:31:32,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:32,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:31:32,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749269440] [2021-03-25 09:31:32,391 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:31:32,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:32,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:31:32,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:31:32,392 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 113 [2021-03-25 09:31:32,392 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 575 transitions, 14936 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:32,392 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:32,392 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 113 [2021-03-25 09:31:32,392 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:33,051 INFO L129 PetriNetUnfolder]: 649/1489 cut-off events. [2021-03-25 09:31:33,051 INFO L130 PetriNetUnfolder]: For 42086/42090 co-relation queries the response was YES. [2021-03-25 09:31:33,069 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14408 conditions, 1489 events. 649/1489 cut-off events. For 42086/42090 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 10354 event pairs, 13 based on Foata normal form. 6/1278 useless extension candidates. Maximal degree in co-relation 14093. Up to 799 conditions per place. [2021-03-25 09:31:33,076 INFO L132 encePairwiseOnDemand]: 96/113 looper letters, 498 selfloop transitions, 90 changer transitions 0/606 dead transitions. [2021-03-25 09:31:33,077 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 391 places, 606 transitions, 16974 flow [2021-03-25 09:31:33,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:31:33,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:31:33,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 748 transitions. [2021-03-25 09:31:33,078 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.47281921618204803 [2021-03-25 09:31:33,078 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 748 transitions. [2021-03-25 09:31:33,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 748 transitions. [2021-03-25 09:31:33,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:33,078 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 748 transitions. [2021-03-25 09:31:33,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 53.42857142857143) internal successors, (748), 14 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:33,079 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 113.0) internal successors, (1695), 15 states have internal predecessors, (1695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:33,079 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 113.0) internal successors, (1695), 15 states have internal predecessors, (1695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:33,080 INFO L185 Difference]: Start difference. First operand has 378 places, 575 transitions, 14936 flow. Second operand 14 states and 748 transitions. [2021-03-25 09:31:33,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 391 places, 606 transitions, 16974 flow [2021-03-25 09:31:33,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 606 transitions, 16658 flow, removed 118 selfloop flow, removed 6 redundant places. [2021-03-25 09:31:33,407 INFO L241 Difference]: Finished difference. Result has 390 places, 596 transitions, 15640 flow [2021-03-25 09:31:33,407 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=14620, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=575, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=489, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=15640, PETRI_PLACES=390, PETRI_TRANSITIONS=596} [2021-03-25 09:31:33,408 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 329 predicate places. [2021-03-25 09:31:33,408 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:33,408 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 390 places, 596 transitions, 15640 flow [2021-03-25 09:31:33,408 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 390 places, 596 transitions, 15640 flow [2021-03-25 09:31:33,413 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 390 places, 596 transitions, 15640 flow [2021-03-25 09:31:33,669 INFO L129 PetriNetUnfolder]: 586/1391 cut-off events. [2021-03-25 09:31:33,669 INFO L130 PetriNetUnfolder]: For 40411/40450 co-relation queries the response was YES. [2021-03-25 09:31:33,684 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13198 conditions, 1391 events. 586/1391 cut-off events. For 40411/40450 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 9899 event pairs, 7 based on Foata normal form. 1/1188 useless extension candidates. Maximal degree in co-relation 12938. Up to 381 conditions per place. [2021-03-25 09:31:33,700 INFO L142 LiptonReduction]: Number of co-enabled transitions 2812 [2021-03-25 09:31:33,817 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:33,817 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:31:33,817 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 409 [2021-03-25 09:31:33,817 INFO L480 AbstractCegarLoop]: Abstraction has has 390 places, 596 transitions, 15650 flow [2021-03-25 09:31:33,817 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:33,817 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:33,817 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:33,817 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-03-25 09:31:33,817 INFO L428 AbstractCegarLoop]: === Iteration 82 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:33,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:33,818 INFO L82 PathProgramCache]: Analyzing trace with hash -389768367, now seen corresponding path program 19 times [2021-03-25 09:31:33,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:33,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711272750] [2021-03-25 09:31:33,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:33,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:33,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:33,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:33,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:33,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:33,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:33,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:33,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:33,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:33,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:33,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:33,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:33,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:33,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:33,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:31:33,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:33,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:33,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:33,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:33,903 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:31:33,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:33,917 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:31:33,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:33,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:33,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711272750] [2021-03-25 09:31:33,919 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:33,919 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:31:33,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169902928] [2021-03-25 09:31:33,920 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:31:33,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:33,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:31:33,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:31:33,920 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 114 [2021-03-25 09:31:33,920 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 596 transitions, 15650 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:33,921 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:33,921 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 114 [2021-03-25 09:31:33,921 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:34,698 INFO L129 PetriNetUnfolder]: 658/1541 cut-off events. [2021-03-25 09:31:34,698 INFO L130 PetriNetUnfolder]: For 45768/45774 co-relation queries the response was YES. [2021-03-25 09:31:34,715 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14900 conditions, 1541 events. 658/1541 cut-off events. For 45768/45774 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 10986 event pairs, 4 based on Foata normal form. 7/1320 useless extension candidates. Maximal degree in co-relation 14614. Up to 715 conditions per place. [2021-03-25 09:31:34,721 INFO L132 encePairwiseOnDemand]: 95/114 looper letters, 390 selfloop transitions, 205 changer transitions 12/625 dead transitions. [2021-03-25 09:31:34,721 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 625 transitions, 17767 flow [2021-03-25 09:31:34,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 09:31:34,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 09:31:34,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 864 transitions. [2021-03-25 09:31:34,722 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.47368421052631576 [2021-03-25 09:31:34,722 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 864 transitions. [2021-03-25 09:31:34,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 864 transitions. [2021-03-25 09:31:34,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:34,722 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 864 transitions. [2021-03-25 09:31:34,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 54.0) internal successors, (864), 16 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:34,723 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 114.0) internal successors, (1938), 17 states have internal predecessors, (1938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:34,724 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 114.0) internal successors, (1938), 17 states have internal predecessors, (1938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:34,724 INFO L185 Difference]: Start difference. First operand has 390 places, 596 transitions, 15650 flow. Second operand 16 states and 864 transitions. [2021-03-25 09:31:34,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 625 transitions, 17767 flow [2021-03-25 09:31:35,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 625 transitions, 17330 flow, removed 206 selfloop flow, removed 5 redundant places. [2021-03-25 09:31:35,042 INFO L241 Difference]: Finished difference. Result has 403 places, 599 transitions, 16218 flow [2021-03-25 09:31:35,042 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=15237, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=596, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=195, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=16218, PETRI_PLACES=403, PETRI_TRANSITIONS=599} [2021-03-25 09:31:35,042 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 342 predicate places. [2021-03-25 09:31:35,042 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:35,042 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 403 places, 599 transitions, 16218 flow [2021-03-25 09:31:35,042 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 403 places, 599 transitions, 16218 flow [2021-03-25 09:31:35,047 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 403 places, 599 transitions, 16218 flow [2021-03-25 09:31:35,267 INFO L129 PetriNetUnfolder]: 586/1427 cut-off events. [2021-03-25 09:31:35,267 INFO L130 PetriNetUnfolder]: For 43269/43310 co-relation queries the response was YES. [2021-03-25 09:31:35,283 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13613 conditions, 1427 events. 586/1427 cut-off events. For 43269/43310 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 10396 event pairs, 4 based on Foata normal form. 1/1214 useless extension candidates. Maximal degree in co-relation 13313. Up to 370 conditions per place. [2021-03-25 09:31:35,302 INFO L142 LiptonReduction]: Number of co-enabled transitions 2810 [2021-03-25 09:31:35,343 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:35,343 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:35,343 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 301 [2021-03-25 09:31:35,343 INFO L480 AbstractCegarLoop]: Abstraction has has 403 places, 599 transitions, 16218 flow [2021-03-25 09:31:35,343 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:35,343 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:35,343 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:35,343 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-03-25 09:31:35,343 INFO L428 AbstractCegarLoop]: === Iteration 83 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:35,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:35,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1599058177, now seen corresponding path program 1 times [2021-03-25 09:31:35,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:35,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795592202] [2021-03-25 09:31:35,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:35,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:35,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:35,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:35,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:35,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:35,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:35,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:35,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:35,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:35,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:35,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:35,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:35,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:31:35,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:35,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:35,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:35,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:35,394 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:35,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:35,405 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:31:35,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:35,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:35,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795592202] [2021-03-25 09:31:35,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:35,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:31:35,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963150666] [2021-03-25 09:31:35,408 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:31:35,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:35,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:31:35,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:31:35,408 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 114 [2021-03-25 09:31:35,408 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 599 transitions, 16218 flow. Second operand has 9 states, 9 states have (on average 49.333333333333336) internal successors, (444), 9 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:35,409 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:35,409 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 114 [2021-03-25 09:31:35,409 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:35,990 INFO L129 PetriNetUnfolder]: 675/1584 cut-off events. [2021-03-25 09:31:35,990 INFO L130 PetriNetUnfolder]: For 52358/52368 co-relation queries the response was YES. [2021-03-25 09:31:36,008 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15933 conditions, 1584 events. 675/1584 cut-off events. For 52358/52368 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 11436 event pairs, 2 based on Foata normal form. 11/1365 useless extension candidates. Maximal degree in co-relation 15643. Up to 733 conditions per place. [2021-03-25 09:31:36,014 INFO L132 encePairwiseOnDemand]: 96/114 looper letters, 395 selfloop transitions, 207 changer transitions 13/633 dead transitions. [2021-03-25 09:31:36,014 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 633 transitions, 18603 flow [2021-03-25 09:31:36,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 09:31:36,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 09:31:36,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 514 transitions. [2021-03-25 09:31:36,015 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5009746588693957 [2021-03-25 09:31:36,015 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 514 transitions. [2021-03-25 09:31:36,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 514 transitions. [2021-03-25 09:31:36,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:36,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 514 transitions. [2021-03-25 09:31:36,016 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 57.111111111111114) internal successors, (514), 9 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:36,016 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 114.0) internal successors, (1140), 10 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:36,017 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 114.0) internal successors, (1140), 10 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:36,017 INFO L185 Difference]: Start difference. First operand has 403 places, 599 transitions, 16218 flow. Second operand 9 states and 514 transitions. [2021-03-25 09:31:36,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 633 transitions, 18603 flow [2021-03-25 09:31:36,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 633 transitions, 18092 flow, removed 149 selfloop flow, removed 13 redundant places. [2021-03-25 09:31:36,389 INFO L241 Difference]: Finished difference. Result has 401 places, 607 transitions, 16772 flow [2021-03-25 09:31:36,389 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=15713, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=599, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=194, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=16772, PETRI_PLACES=401, PETRI_TRANSITIONS=607} [2021-03-25 09:31:36,389 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 340 predicate places. [2021-03-25 09:31:36,389 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:36,389 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 401 places, 607 transitions, 16772 flow [2021-03-25 09:31:36,390 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 401 places, 607 transitions, 16772 flow [2021-03-25 09:31:36,395 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 401 places, 607 transitions, 16772 flow [2021-03-25 09:31:36,622 INFO L129 PetriNetUnfolder]: 599/1432 cut-off events. [2021-03-25 09:31:36,622 INFO L130 PetriNetUnfolder]: For 50884/50887 co-relation queries the response was YES. [2021-03-25 09:31:36,638 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14498 conditions, 1432 events. 599/1432 cut-off events. For 50884/50887 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 10294 event pairs, 10 based on Foata normal form. 1/1230 useless extension candidates. Maximal degree in co-relation 14280. Up to 397 conditions per place. [2021-03-25 09:31:36,656 INFO L142 LiptonReduction]: Number of co-enabled transitions 2740 [2021-03-25 09:31:36,699 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:36,699 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:36,699 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 310 [2021-03-25 09:31:36,699 INFO L480 AbstractCegarLoop]: Abstraction has has 401 places, 607 transitions, 16772 flow [2021-03-25 09:31:36,699 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 49.333333333333336) internal successors, (444), 9 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:36,699 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:36,699 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:36,699 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-03-25 09:31:36,699 INFO L428 AbstractCegarLoop]: === Iteration 84 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:36,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:36,700 INFO L82 PathProgramCache]: Analyzing trace with hash -646130109, now seen corresponding path program 20 times [2021-03-25 09:31:36,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:36,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5918571] [2021-03-25 09:31:36,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:36,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:36,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:36,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:36,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:36,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:36,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:36,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:36,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:36,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:36,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:36,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:36,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:36,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:36,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:36,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:31:36,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:36,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:36,775 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:31:36,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:31:36,777 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:36,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:36,790 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:31:36,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:36,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:36,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5918571] [2021-03-25 09:31:36,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:36,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:31:36,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708020527] [2021-03-25 09:31:36,792 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:31:36,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:36,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:31:36,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:31:36,793 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 114 [2021-03-25 09:31:36,793 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 607 transitions, 16772 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:36,793 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:36,793 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 114 [2021-03-25 09:31:36,793 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:37,510 INFO L129 PetriNetUnfolder]: 658/1545 cut-off events. [2021-03-25 09:31:37,511 INFO L130 PetriNetUnfolder]: For 50181/50185 co-relation queries the response was YES. [2021-03-25 09:31:37,528 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15934 conditions, 1545 events. 658/1545 cut-off events. For 50181/50185 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 11023 event pairs, 8 based on Foata normal form. 7/1334 useless extension candidates. Maximal degree in co-relation 15691. Up to 803 conditions per place. [2021-03-25 09:31:37,535 INFO L132 encePairwiseOnDemand]: 95/114 looper letters, 469 selfloop transitions, 131 changer transitions 4/622 dead transitions. [2021-03-25 09:31:37,535 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 414 places, 622 transitions, 18158 flow [2021-03-25 09:31:37,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:31:37,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:31:37,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 765 transitions. [2021-03-25 09:31:37,536 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4793233082706767 [2021-03-25 09:31:37,536 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 765 transitions. [2021-03-25 09:31:37,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 765 transitions. [2021-03-25 09:31:37,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:37,536 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 765 transitions. [2021-03-25 09:31:37,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 54.642857142857146) internal successors, (765), 14 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:37,538 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 114.0) internal successors, (1710), 15 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:37,538 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 114.0) internal successors, (1710), 15 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:37,538 INFO L185 Difference]: Start difference. First operand has 401 places, 607 transitions, 16772 flow. Second operand 14 states and 765 transitions. [2021-03-25 09:31:37,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 414 places, 622 transitions, 18158 flow [2021-03-25 09:31:37,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 622 transitions, 17621 flow, removed 162 selfloop flow, removed 7 redundant places. [2021-03-25 09:31:37,925 INFO L241 Difference]: Finished difference. Result has 411 places, 606 transitions, 16587 flow [2021-03-25 09:31:37,926 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=16235, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=607, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=476, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=16587, PETRI_PLACES=411, PETRI_TRANSITIONS=606} [2021-03-25 09:31:37,926 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 350 predicate places. [2021-03-25 09:31:37,926 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:37,926 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 411 places, 606 transitions, 16587 flow [2021-03-25 09:31:37,926 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 411 places, 606 transitions, 16587 flow [2021-03-25 09:31:37,931 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 411 places, 606 transitions, 16587 flow [2021-03-25 09:31:38,161 INFO L129 PetriNetUnfolder]: 603/1455 cut-off events. [2021-03-25 09:31:38,161 INFO L130 PetriNetUnfolder]: For 48921/48925 co-relation queries the response was YES. [2021-03-25 09:31:38,177 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14282 conditions, 1455 events. 603/1455 cut-off events. For 48921/48925 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 10589 event pairs, 10 based on Foata normal form. 2/1245 useless extension candidates. Maximal degree in co-relation 13975. Up to 390 conditions per place. [2021-03-25 09:31:38,195 INFO L142 LiptonReduction]: Number of co-enabled transitions 2768 [2021-03-25 09:31:38,237 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:38,237 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:38,237 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 311 [2021-03-25 09:31:38,237 INFO L480 AbstractCegarLoop]: Abstraction has has 411 places, 606 transitions, 16587 flow [2021-03-25 09:31:38,238 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:38,238 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:38,238 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:38,238 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-03-25 09:31:38,238 INFO L428 AbstractCegarLoop]: === Iteration 85 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:38,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:38,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1170094277, now seen corresponding path program 21 times [2021-03-25 09:31:38,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:38,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210508243] [2021-03-25 09:31:38,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:38,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:38,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:38,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:38,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:38,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:38,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:38,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:38,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:38,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:38,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:38,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:38,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:38,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:38,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:38,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:38,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:38,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:38,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:38,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:38,357 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:38,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:38,370 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:31:38,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:38,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:38,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210508243] [2021-03-25 09:31:38,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:38,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:31:38,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370391527] [2021-03-25 09:31:38,373 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:31:38,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:38,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:31:38,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:31:38,373 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 114 [2021-03-25 09:31:38,374 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 606 transitions, 16587 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:38,374 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:38,374 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 114 [2021-03-25 09:31:38,374 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:39,066 INFO L129 PetriNetUnfolder]: 675/1593 cut-off events. [2021-03-25 09:31:39,066 INFO L130 PetriNetUnfolder]: For 52215/52227 co-relation queries the response was YES. [2021-03-25 09:31:39,084 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16161 conditions, 1593 events. 675/1593 cut-off events. For 52215/52227 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 11476 event pairs, 3 based on Foata normal form. 13/1377 useless extension candidates. Maximal degree in co-relation 15920. Up to 697 conditions per place. [2021-03-25 09:31:39,091 INFO L132 encePairwiseOnDemand]: 96/114 looper letters, 359 selfloop transitions, 264 changer transitions 0/641 dead transitions. [2021-03-25 09:31:39,091 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 641 transitions, 19009 flow [2021-03-25 09:31:39,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:31:39,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:31:39,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 767 transitions. [2021-03-25 09:31:39,092 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4805764411027569 [2021-03-25 09:31:39,092 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 767 transitions. [2021-03-25 09:31:39,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 767 transitions. [2021-03-25 09:31:39,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:39,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 767 transitions. [2021-03-25 09:31:39,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 54.785714285714285) internal successors, (767), 14 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:39,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 114.0) internal successors, (1710), 15 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:39,093 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 114.0) internal successors, (1710), 15 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:39,093 INFO L185 Difference]: Start difference. First operand has 411 places, 606 transitions, 16587 flow. Second operand 14 states and 767 transitions. [2021-03-25 09:31:39,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 641 transitions, 19009 flow [2021-03-25 09:31:39,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 641 transitions, 18739 flow, removed 22 selfloop flow, removed 12 redundant places. [2021-03-25 09:31:39,492 INFO L241 Difference]: Finished difference. Result has 416 places, 628 transitions, 18035 flow [2021-03-25 09:31:39,492 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=16317, PETRI_DIFFERENCE_MINUEND_PLACES=399, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=606, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=246, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=18035, PETRI_PLACES=416, PETRI_TRANSITIONS=628} [2021-03-25 09:31:39,492 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 355 predicate places. [2021-03-25 09:31:39,492 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:39,492 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 416 places, 628 transitions, 18035 flow [2021-03-25 09:31:39,493 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 416 places, 628 transitions, 18035 flow [2021-03-25 09:31:39,498 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 416 places, 628 transitions, 18035 flow [2021-03-25 09:31:39,744 INFO L129 PetriNetUnfolder]: 625/1520 cut-off events. [2021-03-25 09:31:39,745 INFO L130 PetriNetUnfolder]: For 51600/51603 co-relation queries the response was YES. [2021-03-25 09:31:39,763 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15223 conditions, 1520 events. 625/1520 cut-off events. For 51600/51603 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 11183 event pairs, 12 based on Foata normal form. 1/1295 useless extension candidates. Maximal degree in co-relation 14948. Up to 404 conditions per place. [2021-03-25 09:31:39,782 INFO L142 LiptonReduction]: Number of co-enabled transitions 2914 [2021-03-25 09:31:39,828 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:39,828 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:39,828 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 336 [2021-03-25 09:31:39,828 INFO L480 AbstractCegarLoop]: Abstraction has has 416 places, 628 transitions, 18035 flow [2021-03-25 09:31:39,828 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:39,828 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:39,828 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:39,828 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-03-25 09:31:39,828 INFO L428 AbstractCegarLoop]: === Iteration 86 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:39,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:39,829 INFO L82 PathProgramCache]: Analyzing trace with hash 794840863, now seen corresponding path program 22 times [2021-03-25 09:31:39,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:39,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269764058] [2021-03-25 09:31:39,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:39,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:39,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:39,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:39,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:39,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:39,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:39,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:39,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:39,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:39,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:39,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:39,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:39,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:39,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:39,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:39,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:39,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:39,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:39,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:39,902 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:39,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:39,915 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:31:39,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:39,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:39,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269764058] [2021-03-25 09:31:39,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:39,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:31:39,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905969612] [2021-03-25 09:31:39,918 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:31:39,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:39,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:31:39,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:31:39,918 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 114 [2021-03-25 09:31:39,919 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 416 places, 628 transitions, 18035 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:39,919 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:39,919 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 114 [2021-03-25 09:31:39,919 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:40,635 INFO L129 PetriNetUnfolder]: 690/1653 cut-off events. [2021-03-25 09:31:40,635 INFO L130 PetriNetUnfolder]: For 56834/56838 co-relation queries the response was YES. [2021-03-25 09:31:40,655 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16935 conditions, 1653 events. 690/1653 cut-off events. For 56834/56838 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 12179 event pairs, 9 based on Foata normal form. 6/1414 useless extension candidates. Maximal degree in co-relation 16634. Up to 775 conditions per place. [2021-03-25 09:31:40,661 INFO L132 encePairwiseOnDemand]: 97/114 looper letters, 419 selfloop transitions, 164 changer transitions 46/647 dead transitions. [2021-03-25 09:31:40,661 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 647 transitions, 19886 flow [2021-03-25 09:31:40,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:31:40,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:31:40,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 606 transitions. [2021-03-25 09:31:40,662 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.48325358851674644 [2021-03-25 09:31:40,663 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 606 transitions. [2021-03-25 09:31:40,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 606 transitions. [2021-03-25 09:31:40,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:40,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 606 transitions. [2021-03-25 09:31:40,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 55.09090909090909) internal successors, (606), 11 states have internal predecessors, (606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:40,664 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 114.0) internal successors, (1368), 12 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:40,664 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 114.0) internal successors, (1368), 12 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:40,664 INFO L185 Difference]: Start difference. First operand has 416 places, 628 transitions, 18035 flow. Second operand 11 states and 606 transitions. [2021-03-25 09:31:40,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 647 transitions, 19886 flow [2021-03-25 09:31:41,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 647 transitions, 19357 flow, removed 200 selfloop flow, removed 3 redundant places. [2021-03-25 09:31:41,070 INFO L241 Difference]: Finished difference. Result has 427 places, 593 transitions, 17172 flow [2021-03-25 09:31:41,070 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=17506, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=628, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=158, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=464, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=17172, PETRI_PLACES=427, PETRI_TRANSITIONS=593} [2021-03-25 09:31:41,070 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 366 predicate places. [2021-03-25 09:31:41,070 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:41,070 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 427 places, 593 transitions, 17172 flow [2021-03-25 09:31:41,070 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 427 places, 593 transitions, 17172 flow [2021-03-25 09:31:41,076 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 422 places, 593 transitions, 17172 flow [2021-03-25 09:31:41,323 INFO L129 PetriNetUnfolder]: 574/1401 cut-off events. [2021-03-25 09:31:41,323 INFO L130 PetriNetUnfolder]: For 52111/52154 co-relation queries the response was YES. [2021-03-25 09:31:41,338 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14500 conditions, 1401 events. 574/1401 cut-off events. For 52111/52154 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 10199 event pairs, 13 based on Foata normal form. 6/1198 useless extension candidates. Maximal degree in co-relation 14289. Up to 379 conditions per place. [2021-03-25 09:31:41,355 INFO L142 LiptonReduction]: Number of co-enabled transitions 2656 [2021-03-25 09:31:41,492 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 09:31:41,492 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 09:31:41,492 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 422 [2021-03-25 09:31:41,493 INFO L480 AbstractCegarLoop]: Abstraction has has 422 places, 593 transitions, 17182 flow [2021-03-25 09:31:41,493 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:41,493 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:41,493 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:41,493 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-03-25 09:31:41,493 INFO L428 AbstractCegarLoop]: === Iteration 87 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:41,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:41,493 INFO L82 PathProgramCache]: Analyzing trace with hash -185721105, now seen corresponding path program 23 times [2021-03-25 09:31:41,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:41,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251609670] [2021-03-25 09:31:41,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:41,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:41,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:41,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:41,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:41,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:41,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:41,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:41,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:41,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:41,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:41,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:41,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:41,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:41,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:41,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:31:41,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:41,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:41,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:41,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:41,578 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:41,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:41,591 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:31:41,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:41,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:41,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251609670] [2021-03-25 09:31:41,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:41,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:31:41,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148310518] [2021-03-25 09:31:41,594 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:31:41,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:41,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:31:41,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:31:41,594 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 116 [2021-03-25 09:31:41,595 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 593 transitions, 17182 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:41,595 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:41,595 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 116 [2021-03-25 09:31:41,595 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:42,384 INFO L129 PetriNetUnfolder]: 655/1573 cut-off events. [2021-03-25 09:31:42,384 INFO L130 PetriNetUnfolder]: For 58585/58595 co-relation queries the response was YES. [2021-03-25 09:31:42,402 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16536 conditions, 1573 events. 655/1573 cut-off events. For 58585/58595 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 11477 event pairs, 4 based on Foata normal form. 12/1357 useless extension candidates. Maximal degree in co-relation 16233. Up to 775 conditions per place. [2021-03-25 09:31:42,409 INFO L132 encePairwiseOnDemand]: 97/116 looper letters, 444 selfloop transitions, 114 changer transitions 44/620 dead transitions. [2021-03-25 09:31:42,409 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 620 transitions, 19009 flow [2021-03-25 09:31:42,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 09:31:42,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 09:31:42,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 870 transitions. [2021-03-25 09:31:42,410 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.46875 [2021-03-25 09:31:42,410 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 870 transitions. [2021-03-25 09:31:42,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 870 transitions. [2021-03-25 09:31:42,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:42,410 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 870 transitions. [2021-03-25 09:31:42,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 54.375) internal successors, (870), 16 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:42,411 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 116.0) internal successors, (1972), 17 states have internal predecessors, (1972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:42,411 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 116.0) internal successors, (1972), 17 states have internal predecessors, (1972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:42,411 INFO L185 Difference]: Start difference. First operand has 422 places, 593 transitions, 17182 flow. Second operand 16 states and 870 transitions. [2021-03-25 09:31:42,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 620 transitions, 19009 flow [2021-03-25 09:31:42,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 620 transitions, 18566 flow, removed 60 selfloop flow, removed 16 redundant places. [2021-03-25 09:31:42,811 INFO L241 Difference]: Finished difference. Result has 425 places, 561 transitions, 16083 flow [2021-03-25 09:31:42,812 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=16749, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=593, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=106, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=481, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=16083, PETRI_PLACES=425, PETRI_TRANSITIONS=561} [2021-03-25 09:31:42,812 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 364 predicate places. [2021-03-25 09:31:42,812 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:42,812 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 425 places, 561 transitions, 16083 flow [2021-03-25 09:31:42,812 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 425 places, 561 transitions, 16083 flow [2021-03-25 09:31:42,817 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 420 places, 561 transitions, 16083 flow [2021-03-25 09:31:43,029 INFO L129 PetriNetUnfolder]: 558/1338 cut-off events. [2021-03-25 09:31:43,029 INFO L130 PetriNetUnfolder]: For 54149/54152 co-relation queries the response was YES. [2021-03-25 09:31:43,043 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14175 conditions, 1338 events. 558/1338 cut-off events. For 54149/54152 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 9499 event pairs, 7 based on Foata normal form. 1/1147 useless extension candidates. Maximal degree in co-relation 13910. Up to 373 conditions per place. [2021-03-25 09:31:43,059 INFO L142 LiptonReduction]: Number of co-enabled transitions 2424 [2021-03-25 09:31:43,095 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:43,095 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:43,095 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 283 [2021-03-25 09:31:43,096 INFO L480 AbstractCegarLoop]: Abstraction has has 420 places, 561 transitions, 16083 flow [2021-03-25 09:31:43,096 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:43,096 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:43,096 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:43,096 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-03-25 09:31:43,096 INFO L428 AbstractCegarLoop]: === Iteration 88 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:43,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:43,096 INFO L82 PathProgramCache]: Analyzing trace with hash -670557551, now seen corresponding path program 1 times [2021-03-25 09:31:43,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:43,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696294746] [2021-03-25 09:31:43,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:43,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:43,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:43,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:43,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:43,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:43,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:43,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:43,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:43,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:31:43,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:43,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:31:43,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:43,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:43,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:43,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:43,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:43,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:43,170 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:43,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:43,184 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:31:43,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:43,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:43,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696294746] [2021-03-25 09:31:43,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:43,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:31:43,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424082914] [2021-03-25 09:31:43,186 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:31:43,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:43,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:31:43,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:31:43,187 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 116 [2021-03-25 09:31:43,187 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 561 transitions, 16083 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:43,187 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:43,187 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 116 [2021-03-25 09:31:43,187 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:43,763 INFO L129 PetriNetUnfolder]: 621/1469 cut-off events. [2021-03-25 09:31:43,764 INFO L130 PetriNetUnfolder]: For 57913/57923 co-relation queries the response was YES. [2021-03-25 09:31:43,780 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15682 conditions, 1469 events. 621/1469 cut-off events. For 57913/57923 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 10417 event pairs, 13 based on Foata normal form. 11/1272 useless extension candidates. Maximal degree in co-relation 15382. Up to 819 conditions per place. [2021-03-25 09:31:43,786 INFO L132 encePairwiseOnDemand]: 99/116 looper letters, 517 selfloop transitions, 36 changer transitions 0/571 dead transitions. [2021-03-25 09:31:43,787 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 571 transitions, 17413 flow [2021-03-25 09:31:43,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:31:43,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:31:43,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 631 transitions. [2021-03-25 09:31:43,788 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.45330459770114945 [2021-03-25 09:31:43,788 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 631 transitions. [2021-03-25 09:31:43,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 631 transitions. [2021-03-25 09:31:43,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:43,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 631 transitions. [2021-03-25 09:31:43,788 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 52.583333333333336) internal successors, (631), 12 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:43,789 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 116.0) internal successors, (1508), 13 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:43,789 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 116.0) internal successors, (1508), 13 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:43,789 INFO L185 Difference]: Start difference. First operand has 420 places, 561 transitions, 16083 flow. Second operand 12 states and 631 transitions. [2021-03-25 09:31:43,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 571 transitions, 17413 flow [2021-03-25 09:31:44,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 571 transitions, 16691 flow, removed 168 selfloop flow, removed 35 redundant places. [2021-03-25 09:31:44,235 INFO L241 Difference]: Finished difference. Result has 399 places, 563 transitions, 15557 flow [2021-03-25 09:31:44,235 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=15379, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=561, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=525, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=15557, PETRI_PLACES=399, PETRI_TRANSITIONS=563} [2021-03-25 09:31:44,235 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 338 predicate places. [2021-03-25 09:31:44,235 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:44,235 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 399 places, 563 transitions, 15557 flow [2021-03-25 09:31:44,236 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 399 places, 563 transitions, 15557 flow [2021-03-25 09:31:44,241 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 399 places, 563 transitions, 15557 flow [2021-03-25 09:31:44,445 INFO L129 PetriNetUnfolder]: 564/1362 cut-off events. [2021-03-25 09:31:44,445 INFO L130 PetriNetUnfolder]: For 49225/49229 co-relation queries the response was YES. [2021-03-25 09:31:44,459 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13715 conditions, 1362 events. 564/1362 cut-off events. For 49225/49229 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 9813 event pairs, 9 based on Foata normal form. 2/1166 useless extension candidates. Maximal degree in co-relation 13449. Up to 377 conditions per place. [2021-03-25 09:31:44,476 INFO L142 LiptonReduction]: Number of co-enabled transitions 2448 [2021-03-25 09:31:44,512 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:44,512 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:44,512 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 277 [2021-03-25 09:31:44,512 INFO L480 AbstractCegarLoop]: Abstraction has has 399 places, 563 transitions, 15557 flow [2021-03-25 09:31:44,512 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:44,512 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:44,513 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:44,513 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-03-25 09:31:44,513 INFO L428 AbstractCegarLoop]: === Iteration 89 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:44,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:44,513 INFO L82 PathProgramCache]: Analyzing trace with hash -2144171191, now seen corresponding path program 2 times [2021-03-25 09:31:44,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:44,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368565848] [2021-03-25 09:31:44,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:44,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:44,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:44,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:44,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:44,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:44,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:44,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:44,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:44,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:31:44,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:44,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:31:44,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:44,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:44,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:44,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:44,577 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:31:44,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:31:44,590 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:44,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:44,602 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:31:44,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:44,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:44,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368565848] [2021-03-25 09:31:44,605 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:44,605 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:31:44,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762599584] [2021-03-25 09:31:44,605 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:31:44,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:44,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:31:44,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:31:44,606 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 116 [2021-03-25 09:31:44,606 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 563 transitions, 15557 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:44,606 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:44,606 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 116 [2021-03-25 09:31:44,606 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:45,174 INFO L129 PetriNetUnfolder]: 619/1468 cut-off events. [2021-03-25 09:31:45,174 INFO L130 PetriNetUnfolder]: For 50707/50711 co-relation queries the response was YES. [2021-03-25 09:31:45,189 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15120 conditions, 1468 events. 619/1468 cut-off events. For 50707/50711 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 10414 event pairs, 14 based on Foata normal form. 5/1266 useless extension candidates. Maximal degree in co-relation 14838. Up to 814 conditions per place. [2021-03-25 09:31:45,195 INFO L132 encePairwiseOnDemand]: 98/116 looper letters, 505 selfloop transitions, 48 changer transitions 2/573 dead transitions. [2021-03-25 09:31:45,196 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 573 transitions, 16850 flow [2021-03-25 09:31:45,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:31:45,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:31:45,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 637 transitions. [2021-03-25 09:31:45,197 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.45761494252873564 [2021-03-25 09:31:45,197 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 637 transitions. [2021-03-25 09:31:45,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 637 transitions. [2021-03-25 09:31:45,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:45,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 637 transitions. [2021-03-25 09:31:45,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 53.083333333333336) internal successors, (637), 12 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:45,198 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 116.0) internal successors, (1508), 13 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:45,198 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 116.0) internal successors, (1508), 13 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:45,198 INFO L185 Difference]: Start difference. First operand has 399 places, 563 transitions, 15557 flow. Second operand 12 states and 637 transitions. [2021-03-25 09:31:45,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 573 transitions, 16850 flow [2021-03-25 09:31:45,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 573 transitions, 16684 flow, removed 42 selfloop flow, removed 10 redundant places. [2021-03-25 09:31:45,506 INFO L241 Difference]: Finished difference. Result has 402 places, 562 transitions, 15477 flow [2021-03-25 09:31:45,506 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=15391, PETRI_DIFFERENCE_MINUEND_PLACES=389, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=563, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=515, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=15477, PETRI_PLACES=402, PETRI_TRANSITIONS=562} [2021-03-25 09:31:45,506 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 341 predicate places. [2021-03-25 09:31:45,506 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:45,506 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 402 places, 562 transitions, 15477 flow [2021-03-25 09:31:45,506 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 402 places, 562 transitions, 15477 flow [2021-03-25 09:31:45,511 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 402 places, 562 transitions, 15477 flow [2021-03-25 09:31:45,721 INFO L129 PetriNetUnfolder]: 562/1366 cut-off events. [2021-03-25 09:31:45,722 INFO L130 PetriNetUnfolder]: For 48761/48764 co-relation queries the response was YES. [2021-03-25 09:31:45,735 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13705 conditions, 1366 events. 562/1366 cut-off events. For 48761/48764 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 9831 event pairs, 11 based on Foata normal form. 1/1169 useless extension candidates. Maximal degree in co-relation 13431. Up to 372 conditions per place. [2021-03-25 09:31:45,751 INFO L142 LiptonReduction]: Number of co-enabled transitions 2448 [2021-03-25 09:31:45,788 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:45,788 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:45,788 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 282 [2021-03-25 09:31:45,788 INFO L480 AbstractCegarLoop]: Abstraction has has 402 places, 562 transitions, 15477 flow [2021-03-25 09:31:45,788 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:45,788 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:45,789 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:45,789 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-03-25 09:31:45,789 INFO L428 AbstractCegarLoop]: === Iteration 90 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:45,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:45,789 INFO L82 PathProgramCache]: Analyzing trace with hash 97260823, now seen corresponding path program 3 times [2021-03-25 09:31:45,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:45,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045047648] [2021-03-25 09:31:45,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:45,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:45,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:45,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:45,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:45,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:45,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:45,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:45,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:45,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:31:45,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:45,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:31:45,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:45,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:45,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:45,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:45,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:45,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:45,866 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:45,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:45,879 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:31:45,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:45,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:45,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045047648] [2021-03-25 09:31:45,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:45,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:31:45,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219669964] [2021-03-25 09:31:45,881 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:31:45,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:45,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:31:45,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:31:45,882 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 116 [2021-03-25 09:31:45,882 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 562 transitions, 15477 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:45,882 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:45,882 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 116 [2021-03-25 09:31:45,882 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:46,456 INFO L129 PetriNetUnfolder]: 616/1459 cut-off events. [2021-03-25 09:31:46,456 INFO L130 PetriNetUnfolder]: For 50394/50398 co-relation queries the response was YES. [2021-03-25 09:31:46,472 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15029 conditions, 1459 events. 616/1459 cut-off events. For 50394/50398 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 10366 event pairs, 6 based on Foata normal form. 5/1260 useless extension candidates. Maximal degree in co-relation 14752. Up to 813 conditions per place. [2021-03-25 09:31:46,479 INFO L132 encePairwiseOnDemand]: 98/116 looper letters, 511 selfloop transitions, 38 changer transitions 5/572 dead transitions. [2021-03-25 09:31:46,479 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 572 transitions, 16705 flow [2021-03-25 09:31:46,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:31:46,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:31:46,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 636 transitions. [2021-03-25 09:31:46,480 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.45689655172413796 [2021-03-25 09:31:46,480 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 636 transitions. [2021-03-25 09:31:46,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 636 transitions. [2021-03-25 09:31:46,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:46,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 636 transitions. [2021-03-25 09:31:46,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 53.0) internal successors, (636), 12 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:46,481 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 116.0) internal successors, (1508), 13 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:46,481 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 116.0) internal successors, (1508), 13 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:46,481 INFO L185 Difference]: Start difference. First operand has 402 places, 562 transitions, 15477 flow. Second operand 12 states and 636 transitions. [2021-03-25 09:31:46,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 572 transitions, 16705 flow [2021-03-25 09:31:46,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 572 transitions, 16580 flow, removed 2 selfloop flow, removed 12 redundant places. [2021-03-25 09:31:46,861 INFO L241 Difference]: Finished difference. Result has 403 places, 559 transitions, 15394 flow [2021-03-25 09:31:46,861 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=15352, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=562, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=524, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=15394, PETRI_PLACES=403, PETRI_TRANSITIONS=559} [2021-03-25 09:31:46,862 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 342 predicate places. [2021-03-25 09:31:46,862 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:46,862 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 403 places, 559 transitions, 15394 flow [2021-03-25 09:31:46,862 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 403 places, 559 transitions, 15394 flow [2021-03-25 09:31:46,866 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 401 places, 559 transitions, 15394 flow [2021-03-25 09:31:47,070 INFO L129 PetriNetUnfolder]: 556/1339 cut-off events. [2021-03-25 09:31:47,070 INFO L130 PetriNetUnfolder]: For 49489/49491 co-relation queries the response was YES. [2021-03-25 09:31:47,085 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13604 conditions, 1339 events. 556/1339 cut-off events. For 49489/49491 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 9528 event pairs, 9 based on Foata normal form. 0/1148 useless extension candidates. Maximal degree in co-relation 13345. Up to 369 conditions per place. [2021-03-25 09:31:47,101 INFO L142 LiptonReduction]: Number of co-enabled transitions 2424 [2021-03-25 09:31:47,137 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:47,137 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:47,137 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 275 [2021-03-25 09:31:47,137 INFO L480 AbstractCegarLoop]: Abstraction has has 401 places, 559 transitions, 15394 flow [2021-03-25 09:31:47,138 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:47,138 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:47,138 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:47,138 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-03-25 09:31:47,138 INFO L428 AbstractCegarLoop]: === Iteration 91 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:47,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:47,138 INFO L82 PathProgramCache]: Analyzing trace with hash -879527849, now seen corresponding path program 4 times [2021-03-25 09:31:47,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:47,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635891942] [2021-03-25 09:31:47,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:47,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:47,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:47,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:47,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:47,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:47,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:47,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:47,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:47,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:31:47,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:47,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:31:47,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:47,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:47,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:47,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:47,208 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:31:47,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:31:47,220 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:47,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:47,232 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:31:47,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:47,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:47,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635891942] [2021-03-25 09:31:47,234 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:47,235 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:31:47,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731429172] [2021-03-25 09:31:47,235 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:31:47,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:47,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:31:47,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:31:47,235 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 116 [2021-03-25 09:31:47,236 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 559 transitions, 15394 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:47,236 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:47,236 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 116 [2021-03-25 09:31:47,236 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:47,868 INFO L129 PetriNetUnfolder]: 625/1481 cut-off events. [2021-03-25 09:31:47,868 INFO L130 PetriNetUnfolder]: For 53129/53133 co-relation queries the response was YES. [2021-03-25 09:31:47,883 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15256 conditions, 1481 events. 625/1481 cut-off events. For 53129/53133 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 10557 event pairs, 15 based on Foata normal form. 6/1279 useless extension candidates. Maximal degree in co-relation 14990. Up to 804 conditions per place. [2021-03-25 09:31:47,889 INFO L132 encePairwiseOnDemand]: 98/116 looper letters, 480 selfloop transitions, 79 changer transitions 4/581 dead transitions. [2021-03-25 09:31:47,890 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 581 transitions, 17093 flow [2021-03-25 09:31:47,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:31:47,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:31:47,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 696 transitions. [2021-03-25 09:31:47,891 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.46153846153846156 [2021-03-25 09:31:47,891 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 696 transitions. [2021-03-25 09:31:47,891 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 696 transitions. [2021-03-25 09:31:47,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:47,891 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 696 transitions. [2021-03-25 09:31:47,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 53.53846153846154) internal successors, (696), 13 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:47,892 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 116.0) internal successors, (1624), 14 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:47,892 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 116.0) internal successors, (1624), 14 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:47,892 INFO L185 Difference]: Start difference. First operand has 401 places, 559 transitions, 15394 flow. Second operand 13 states and 696 transitions. [2021-03-25 09:31:47,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 581 transitions, 17093 flow [2021-03-25 09:31:48,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 581 transitions, 17012 flow, removed 8 selfloop flow, removed 12 redundant places. [2021-03-25 09:31:48,213 INFO L241 Difference]: Finished difference. Result has 405 places, 569 transitions, 15921 flow [2021-03-25 09:31:48,214 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=15315, PETRI_DIFFERENCE_MINUEND_PLACES=389, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=559, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=481, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=15921, PETRI_PLACES=405, PETRI_TRANSITIONS=569} [2021-03-25 09:31:48,214 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 344 predicate places. [2021-03-25 09:31:48,214 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:48,214 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 405 places, 569 transitions, 15921 flow [2021-03-25 09:31:48,214 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 405 places, 569 transitions, 15921 flow [2021-03-25 09:31:48,219 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 405 places, 569 transitions, 15921 flow [2021-03-25 09:31:48,426 INFO L129 PetriNetUnfolder]: 559/1349 cut-off events. [2021-03-25 09:31:48,426 INFO L130 PetriNetUnfolder]: For 49301/49304 co-relation queries the response was YES. [2021-03-25 09:31:48,440 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13850 conditions, 1349 events. 559/1349 cut-off events. For 49301/49304 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 9669 event pairs, 10 based on Foata normal form. 1/1160 useless extension candidates. Maximal degree in co-relation 13582. Up to 374 conditions per place. [2021-03-25 09:31:48,455 INFO L142 LiptonReduction]: Number of co-enabled transitions 2472 [2021-03-25 09:31:48,492 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:48,492 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:48,492 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 278 [2021-03-25 09:31:48,493 INFO L480 AbstractCegarLoop]: Abstraction has has 405 places, 569 transitions, 15921 flow [2021-03-25 09:31:48,493 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:48,493 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:48,493 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:48,493 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-03-25 09:31:48,493 INFO L428 AbstractCegarLoop]: === Iteration 92 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:48,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:48,493 INFO L82 PathProgramCache]: Analyzing trace with hash -1033965367, now seen corresponding path program 5 times [2021-03-25 09:31:48,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:48,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831964893] [2021-03-25 09:31:48,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:48,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:48,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:48,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:48,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:48,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:48,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:48,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:48,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:48,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:31:48,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:48,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:31:48,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:48,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:48,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:48,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:48,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:48,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:48,569 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:48,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:48,581 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:31:48,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:48,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:48,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831964893] [2021-03-25 09:31:48,583 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:48,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:31:48,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467180482] [2021-03-25 09:31:48,583 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:31:48,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:48,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:31:48,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:31:48,584 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 116 [2021-03-25 09:31:48,584 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 569 transitions, 15921 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:48,584 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:48,584 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 116 [2021-03-25 09:31:48,584 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:49,187 INFO L129 PetriNetUnfolder]: 626/1474 cut-off events. [2021-03-25 09:31:49,187 INFO L130 PetriNetUnfolder]: For 54596/54600 co-relation queries the response was YES. [2021-03-25 09:31:49,202 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15462 conditions, 1474 events. 626/1474 cut-off events. For 54596/54600 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 10455 event pairs, 12 based on Foata normal form. 5/1275 useless extension candidates. Maximal degree in co-relation 15178. Up to 820 conditions per place. [2021-03-25 09:31:49,208 INFO L132 encePairwiseOnDemand]: 98/116 looper letters, 493 selfloop transitions, 65 changer transitions 6/582 dead transitions. [2021-03-25 09:31:49,208 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 582 transitions, 17381 flow [2021-03-25 09:31:49,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:31:49,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:31:49,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 694 transitions. [2021-03-25 09:31:49,209 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.46021220159151194 [2021-03-25 09:31:49,210 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 694 transitions. [2021-03-25 09:31:49,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 694 transitions. [2021-03-25 09:31:49,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:49,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 694 transitions. [2021-03-25 09:31:49,210 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 53.38461538461539) internal successors, (694), 13 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:49,211 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 116.0) internal successors, (1624), 14 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:49,211 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 116.0) internal successors, (1624), 14 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:49,211 INFO L185 Difference]: Start difference. First operand has 405 places, 569 transitions, 15921 flow. Second operand 13 states and 694 transitions. [2021-03-25 09:31:49,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 582 transitions, 17381 flow [2021-03-25 09:31:49,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 582 transitions, 17113 flow, removed 117 selfloop flow, removed 5 redundant places. [2021-03-25 09:31:49,593 INFO L241 Difference]: Finished difference. Result has 414 places, 568 transitions, 15981 flow [2021-03-25 09:31:49,593 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=15675, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=569, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=504, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=15981, PETRI_PLACES=414, PETRI_TRANSITIONS=568} [2021-03-25 09:31:49,593 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 353 predicate places. [2021-03-25 09:31:49,594 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:49,594 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 414 places, 568 transitions, 15981 flow [2021-03-25 09:31:49,594 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 414 places, 568 transitions, 15981 flow [2021-03-25 09:31:49,599 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 409 places, 568 transitions, 15981 flow [2021-03-25 09:31:49,804 INFO L129 PetriNetUnfolder]: 561/1344 cut-off events. [2021-03-25 09:31:49,804 INFO L130 PetriNetUnfolder]: For 52000/52003 co-relation queries the response was YES. [2021-03-25 09:31:49,817 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14014 conditions, 1344 events. 561/1344 cut-off events. For 52000/52003 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 9581 event pairs, 12 based on Foata normal form. 1/1158 useless extension candidates. Maximal degree in co-relation 13751. Up to 375 conditions per place. [2021-03-25 09:31:49,833 INFO L142 LiptonReduction]: Number of co-enabled transitions 2450 [2021-03-25 09:31:49,870 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:49,870 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:49,870 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 276 [2021-03-25 09:31:49,871 INFO L480 AbstractCegarLoop]: Abstraction has has 409 places, 568 transitions, 15981 flow [2021-03-25 09:31:49,871 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:49,871 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:49,871 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:49,871 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-03-25 09:31:49,871 INFO L428 AbstractCegarLoop]: === Iteration 93 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:49,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:49,871 INFO L82 PathProgramCache]: Analyzing trace with hash -783104750, now seen corresponding path program 1 times [2021-03-25 09:31:49,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:49,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336137036] [2021-03-25 09:31:49,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:49,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:49,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:49,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:49,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:49,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:49,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:49,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:49,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:49,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:49,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:49,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:49,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:49,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:49,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:49,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:49,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:49,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:49,955 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:49,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:49,967 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:31:49,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:49,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:49,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336137036] [2021-03-25 09:31:49,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:49,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:31:49,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144681719] [2021-03-25 09:31:49,969 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:31:49,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:49,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:31:49,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:31:49,970 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 116 [2021-03-25 09:31:49,970 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 568 transitions, 15981 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:49,970 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:49,970 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 116 [2021-03-25 09:31:49,970 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:50,611 INFO L129 PetriNetUnfolder]: 644/1502 cut-off events. [2021-03-25 09:31:50,611 INFO L130 PetriNetUnfolder]: For 56722/56728 co-relation queries the response was YES. [2021-03-25 09:31:50,627 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16149 conditions, 1502 events. 644/1502 cut-off events. For 56722/56728 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 10629 event pairs, 4 based on Foata normal form. 7/1303 useless extension candidates. Maximal degree in co-relation 15876. Up to 802 conditions per place. [2021-03-25 09:31:50,633 INFO L132 encePairwiseOnDemand]: 101/116 looper letters, 475 selfloop transitions, 113 changer transitions 0/606 dead transitions. [2021-03-25 09:31:50,633 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 420 places, 606 transitions, 18443 flow [2021-03-25 09:31:50,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:31:50,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:31:50,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 660 transitions. [2021-03-25 09:31:50,634 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.47413793103448276 [2021-03-25 09:31:50,634 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 660 transitions. [2021-03-25 09:31:50,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 660 transitions. [2021-03-25 09:31:50,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:50,634 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 660 transitions. [2021-03-25 09:31:50,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 55.0) internal successors, (660), 12 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:50,636 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 116.0) internal successors, (1508), 13 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:50,636 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 116.0) internal successors, (1508), 13 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:50,636 INFO L185 Difference]: Start difference. First operand has 409 places, 568 transitions, 15981 flow. Second operand 12 states and 660 transitions. [2021-03-25 09:31:50,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 420 places, 606 transitions, 18443 flow [2021-03-25 09:31:51,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 606 transitions, 18289 flow, removed 13 selfloop flow, removed 11 redundant places. [2021-03-25 09:31:51,046 INFO L241 Difference]: Finished difference. Result has 413 places, 593 transitions, 17308 flow [2021-03-25 09:31:51,047 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=15827, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=568, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=460, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=17308, PETRI_PLACES=413, PETRI_TRANSITIONS=593} [2021-03-25 09:31:51,047 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 352 predicate places. [2021-03-25 09:31:51,047 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:51,047 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 413 places, 593 transitions, 17308 flow [2021-03-25 09:31:51,047 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 413 places, 593 transitions, 17308 flow [2021-03-25 09:31:51,052 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 413 places, 593 transitions, 17308 flow [2021-03-25 09:31:51,274 INFO L129 PetriNetUnfolder]: 591/1411 cut-off events. [2021-03-25 09:31:51,275 INFO L130 PetriNetUnfolder]: For 58501/58506 co-relation queries the response was YES. [2021-03-25 09:31:51,289 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14941 conditions, 1411 events. 591/1411 cut-off events. For 58501/58506 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 10100 event pairs, 11 based on Foata normal form. 1/1211 useless extension candidates. Maximal degree in co-relation 14682. Up to 403 conditions per place. [2021-03-25 09:31:51,306 INFO L142 LiptonReduction]: Number of co-enabled transitions 2522 [2021-03-25 09:31:51,346 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:51,346 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:51,347 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 300 [2021-03-25 09:31:51,347 INFO L480 AbstractCegarLoop]: Abstraction has has 413 places, 593 transitions, 17308 flow [2021-03-25 09:31:51,347 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:51,347 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:51,347 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:51,347 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-03-25 09:31:51,347 INFO L428 AbstractCegarLoop]: === Iteration 94 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:51,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:51,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1048432145, now seen corresponding path program 24 times [2021-03-25 09:31:51,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:51,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320302746] [2021-03-25 09:31:51,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:51,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:51,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:51,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:51,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:51,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:51,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:51,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:51,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:51,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:51,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:51,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:51,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:51,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:51,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:51,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:31:51,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:51,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:51,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:51,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:51,432 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:51,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:51,445 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:31:51,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:51,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:51,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320302746] [2021-03-25 09:31:51,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:51,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:31:51,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181945727] [2021-03-25 09:31:51,447 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:31:51,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:51,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:31:51,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:31:51,448 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 116 [2021-03-25 09:31:51,448 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 413 places, 593 transitions, 17308 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:51,448 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:51,448 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 116 [2021-03-25 09:31:51,448 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:52,314 INFO L129 PetriNetUnfolder]: 682/1609 cut-off events. [2021-03-25 09:31:52,315 INFO L130 PetriNetUnfolder]: For 65950/65960 co-relation queries the response was YES. [2021-03-25 09:31:52,334 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17501 conditions, 1609 events. 682/1609 cut-off events. For 65950/65960 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 11609 event pairs, 2 based on Foata normal form. 12/1393 useless extension candidates. Maximal degree in co-relation 17208. Up to 636 conditions per place. [2021-03-25 09:31:52,341 INFO L132 encePairwiseOnDemand]: 97/116 looper letters, 287 selfloop transitions, 296 changer transitions 54/655 dead transitions. [2021-03-25 09:31:52,341 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 429 places, 655 transitions, 21042 flow [2021-03-25 09:31:52,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-25 09:31:52,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-25 09:31:52,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 939 transitions. [2021-03-25 09:31:52,343 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4761663286004057 [2021-03-25 09:31:52,343 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 939 transitions. [2021-03-25 09:31:52,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 939 transitions. [2021-03-25 09:31:52,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:52,343 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 939 transitions. [2021-03-25 09:31:52,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 55.23529411764706) internal successors, (939), 17 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:52,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 116.0) internal successors, (2088), 18 states have internal predecessors, (2088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:52,344 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 116.0) internal successors, (2088), 18 states have internal predecessors, (2088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:52,344 INFO L185 Difference]: Start difference. First operand has 413 places, 593 transitions, 17308 flow. Second operand 17 states and 939 transitions. [2021-03-25 09:31:52,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 429 places, 655 transitions, 21042 flow [2021-03-25 09:31:52,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 655 transitions, 20482 flow, removed 268 selfloop flow, removed 3 redundant places. [2021-03-25 09:31:52,780 INFO L241 Difference]: Finished difference. Result has 434 places, 586 transitions, 18263 flow [2021-03-25 09:31:52,780 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=16790, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=593, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=265, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=18263, PETRI_PLACES=434, PETRI_TRANSITIONS=586} [2021-03-25 09:31:52,780 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 373 predicate places. [2021-03-25 09:31:52,780 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:52,780 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 434 places, 586 transitions, 18263 flow [2021-03-25 09:31:52,781 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 434 places, 586 transitions, 18263 flow [2021-03-25 09:31:52,786 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 431 places, 586 transitions, 18263 flow [2021-03-25 09:31:53,038 INFO L129 PetriNetUnfolder]: 574/1361 cut-off events. [2021-03-25 09:31:53,039 INFO L130 PetriNetUnfolder]: For 63562/63565 co-relation queries the response was YES. [2021-03-25 09:31:53,056 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15415 conditions, 1361 events. 574/1361 cut-off events. For 63562/63565 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 9663 event pairs, 2 based on Foata normal form. 1/1172 useless extension candidates. Maximal degree in co-relation 15137. Up to 364 conditions per place. [2021-03-25 09:31:53,075 INFO L142 LiptonReduction]: Number of co-enabled transitions 2368 [2021-03-25 09:31:53,114 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:53,114 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:53,114 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 334 [2021-03-25 09:31:53,114 INFO L480 AbstractCegarLoop]: Abstraction has has 431 places, 586 transitions, 18263 flow [2021-03-25 09:31:53,114 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:53,114 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:53,114 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:53,115 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-03-25 09:31:53,115 INFO L428 AbstractCegarLoop]: === Iteration 95 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:53,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:53,115 INFO L82 PathProgramCache]: Analyzing trace with hash 1159798571, now seen corresponding path program 25 times [2021-03-25 09:31:53,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:53,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305233120] [2021-03-25 09:31:53,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:53,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:53,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:53,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:53,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:53,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:53,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:53,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:53,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:53,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:53,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:53,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:53,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:53,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:53,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:53,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:31:53,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:53,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:53,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:53,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:53,200 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:53,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:53,213 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:31:53,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:53,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:53,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305233120] [2021-03-25 09:31:53,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:53,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:31:53,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318756295] [2021-03-25 09:31:53,215 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:31:53,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:53,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:31:53,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:31:53,216 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 116 [2021-03-25 09:31:53,216 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 431 places, 586 transitions, 18263 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:53,216 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:53,216 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 116 [2021-03-25 09:31:53,217 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:53,894 INFO L129 PetriNetUnfolder]: 628/1461 cut-off events. [2021-03-25 09:31:53,894 INFO L130 PetriNetUnfolder]: For 65993/65997 co-relation queries the response was YES. [2021-03-25 09:31:53,911 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16836 conditions, 1461 events. 628/1461 cut-off events. For 65993/65997 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 10214 event pairs, 3 based on Foata normal form. 5/1268 useless extension candidates. Maximal degree in co-relation 16548. Up to 811 conditions per place. [2021-03-25 09:31:53,918 INFO L132 encePairwiseOnDemand]: 97/116 looper letters, 500 selfloop transitions, 80 changer transitions 0/598 dead transitions. [2021-03-25 09:31:53,918 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 598 transitions, 19548 flow [2021-03-25 09:31:53,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 09:31:53,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 09:31:53,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 847 transitions. [2021-03-25 09:31:53,919 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.45635775862068967 [2021-03-25 09:31:53,919 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 847 transitions. [2021-03-25 09:31:53,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 847 transitions. [2021-03-25 09:31:53,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:53,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 847 transitions. [2021-03-25 09:31:53,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 52.9375) internal successors, (847), 16 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:53,920 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 116.0) internal successors, (1972), 17 states have internal predecessors, (1972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:53,920 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 116.0) internal successors, (1972), 17 states have internal predecessors, (1972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:53,920 INFO L185 Difference]: Start difference. First operand has 431 places, 586 transitions, 18263 flow. Second operand 16 states and 847 transitions. [2021-03-25 09:31:53,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 598 transitions, 19548 flow [2021-03-25 09:31:54,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 413 places, 598 transitions, 17945 flow, removed 515 selfloop flow, removed 33 redundant places. [2021-03-25 09:31:54,354 INFO L241 Difference]: Finished difference. Result has 416 places, 588 transitions, 16911 flow [2021-03-25 09:31:54,355 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=16664, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=586, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=506, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=16911, PETRI_PLACES=416, PETRI_TRANSITIONS=588} [2021-03-25 09:31:54,355 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 355 predicate places. [2021-03-25 09:31:54,355 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:54,355 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 416 places, 588 transitions, 16911 flow [2021-03-25 09:31:54,355 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 416 places, 588 transitions, 16911 flow [2021-03-25 09:31:54,360 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 416 places, 588 transitions, 16911 flow [2021-03-25 09:31:54,578 INFO L129 PetriNetUnfolder]: 576/1381 cut-off events. [2021-03-25 09:31:54,578 INFO L130 PetriNetUnfolder]: For 56597/56600 co-relation queries the response was YES. [2021-03-25 09:31:54,593 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14505 conditions, 1381 events. 576/1381 cut-off events. For 56597/56600 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 9831 event pairs, 5 based on Foata normal form. 1/1189 useless extension candidates. Maximal degree in co-relation 14236. Up to 363 conditions per place. [2021-03-25 09:31:54,610 INFO L142 LiptonReduction]: Number of co-enabled transitions 2392 [2021-03-25 09:31:54,649 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:54,649 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:54,649 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 294 [2021-03-25 09:31:54,649 INFO L480 AbstractCegarLoop]: Abstraction has has 416 places, 588 transitions, 16911 flow [2021-03-25 09:31:54,650 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:54,650 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:54,650 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:54,650 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-03-25 09:31:54,650 INFO L428 AbstractCegarLoop]: === Iteration 96 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:54,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:54,650 INFO L82 PathProgramCache]: Analyzing trace with hash -320606473, now seen corresponding path program 26 times [2021-03-25 09:31:54,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:54,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716640196] [2021-03-25 09:31:54,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:54,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:54,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:54,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:54,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:54,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:54,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:54,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:54,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:54,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:54,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:54,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:54,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:54,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:54,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:54,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:31:54,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:54,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:54,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:54,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:54,736 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:54,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:54,749 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:31:54,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:54,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:54,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716640196] [2021-03-25 09:31:54,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:54,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:31:54,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064576051] [2021-03-25 09:31:54,752 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:31:54,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:54,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:31:54,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:31:54,752 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 116 [2021-03-25 09:31:54,753 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 416 places, 588 transitions, 16911 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:54,753 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:54,753 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 116 [2021-03-25 09:31:54,753 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:55,584 INFO L129 PetriNetUnfolder]: 668/1568 cut-off events. [2021-03-25 09:31:55,584 INFO L130 PetriNetUnfolder]: For 60019/60023 co-relation queries the response was YES. [2021-03-25 09:31:55,599 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16898 conditions, 1568 events. 668/1568 cut-off events. For 60019/60023 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 11251 event pairs, 11 based on Foata normal form. 5/1357 useless extension candidates. Maximal degree in co-relation 16696. Up to 729 conditions per place. [2021-03-25 09:31:55,605 INFO L132 encePairwiseOnDemand]: 98/116 looper letters, 347 selfloop transitions, 228 changer transitions 57/650 dead transitions. [2021-03-25 09:31:55,605 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 650 transitions, 20005 flow [2021-03-25 09:31:55,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-25 09:31:55,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-25 09:31:55,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 976 transitions. [2021-03-25 09:31:55,606 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4674329501915709 [2021-03-25 09:31:55,606 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 976 transitions. [2021-03-25 09:31:55,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 976 transitions. [2021-03-25 09:31:55,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:55,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 976 transitions. [2021-03-25 09:31:55,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 54.22222222222222) internal successors, (976), 18 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:55,608 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 116.0) internal successors, (2204), 19 states have internal predecessors, (2204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:55,608 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 116.0) internal successors, (2204), 19 states have internal predecessors, (2204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:55,608 INFO L185 Difference]: Start difference. First operand has 416 places, 588 transitions, 16911 flow. Second operand 18 states and 976 transitions. [2021-03-25 09:31:55,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 433 places, 650 transitions, 20005 flow [2021-03-25 09:31:56,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 650 transitions, 19750 flow, removed 43 selfloop flow, removed 11 redundant places. [2021-03-25 09:31:56,039 INFO L241 Difference]: Finished difference. Result has 430 places, 583 transitions, 17441 flow [2021-03-25 09:31:56,039 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=16673, PETRI_DIFFERENCE_MINUEND_PLACES=405, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=588, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=190, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=17441, PETRI_PLACES=430, PETRI_TRANSITIONS=583} [2021-03-25 09:31:56,039 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 369 predicate places. [2021-03-25 09:31:56,039 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:56,039 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 430 places, 583 transitions, 17441 flow [2021-03-25 09:31:56,039 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 430 places, 583 transitions, 17441 flow [2021-03-25 09:31:56,045 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 430 places, 583 transitions, 17441 flow [2021-03-25 09:31:56,251 INFO L129 PetriNetUnfolder]: 536/1252 cut-off events. [2021-03-25 09:31:56,251 INFO L130 PetriNetUnfolder]: For 55539/55542 co-relation queries the response was YES. [2021-03-25 09:31:56,265 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14673 conditions, 1252 events. 536/1252 cut-off events. For 55539/55542 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 8560 event pairs, 14 based on Foata normal form. 1/1098 useless extension candidates. Maximal degree in co-relation 14464. Up to 342 conditions per place. [2021-03-25 09:31:56,280 INFO L142 LiptonReduction]: Number of co-enabled transitions 2136 [2021-03-25 09:31:56,318 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:56,318 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:56,318 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 279 [2021-03-25 09:31:56,318 INFO L480 AbstractCegarLoop]: Abstraction has has 430 places, 583 transitions, 17441 flow [2021-03-25 09:31:56,318 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:56,318 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:56,319 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:56,319 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-03-25 09:31:56,319 INFO L428 AbstractCegarLoop]: === Iteration 97 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:56,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:56,319 INFO L82 PathProgramCache]: Analyzing trace with hash -844476305, now seen corresponding path program 27 times [2021-03-25 09:31:56,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:56,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525571257] [2021-03-25 09:31:56,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:56,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:56,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:56,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:56,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:56,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:56,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:56,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:56,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:56,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:56,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:56,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:56,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:56,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:56,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:56,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:31:56,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:56,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:56,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:56,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:56,405 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:56,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:56,418 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:31:56,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:56,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:56,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525571257] [2021-03-25 09:31:56,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:56,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:31:56,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298120631] [2021-03-25 09:31:56,420 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:31:56,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:56,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:31:56,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:31:56,421 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 116 [2021-03-25 09:31:56,421 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 583 transitions, 17441 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:56,421 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:56,421 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 116 [2021-03-25 09:31:56,421 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:57,148 INFO L129 PetriNetUnfolder]: 605/1381 cut-off events. [2021-03-25 09:31:57,148 INFO L130 PetriNetUnfolder]: For 59109/59115 co-relation queries the response was YES. [2021-03-25 09:31:57,164 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16554 conditions, 1381 events. 605/1381 cut-off events. For 59109/59115 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 9421 event pairs, 8 based on Foata normal form. 8/1218 useless extension candidates. Maximal degree in co-relation 16341. Up to 633 conditions per place. [2021-03-25 09:31:57,171 INFO L132 encePairwiseOnDemand]: 97/116 looper letters, 276 selfloop transitions, 276 changer transitions 46/616 dead transitions. [2021-03-25 09:31:57,171 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 616 transitions, 19959 flow [2021-03-25 09:31:57,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 09:31:57,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 09:31:57,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 870 transitions. [2021-03-25 09:31:57,172 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.46875 [2021-03-25 09:31:57,172 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 870 transitions. [2021-03-25 09:31:57,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 870 transitions. [2021-03-25 09:31:57,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:57,172 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 870 transitions. [2021-03-25 09:31:57,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 54.375) internal successors, (870), 16 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:57,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 116.0) internal successors, (1972), 17 states have internal predecessors, (1972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:57,173 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 116.0) internal successors, (1972), 17 states have internal predecessors, (1972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:57,174 INFO L185 Difference]: Start difference. First operand has 430 places, 583 transitions, 17441 flow. Second operand 16 states and 870 transitions. [2021-03-25 09:31:57,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 616 transitions, 19959 flow [2021-03-25 09:31:57,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 616 transitions, 19151 flow, removed 195 selfloop flow, removed 21 redundant places. [2021-03-25 09:31:57,636 INFO L241 Difference]: Finished difference. Result has 432 places, 558 transitions, 17033 flow [2021-03-25 09:31:57,637 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=16641, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=583, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=270, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=17033, PETRI_PLACES=432, PETRI_TRANSITIONS=558} [2021-03-25 09:31:57,637 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 371 predicate places. [2021-03-25 09:31:57,637 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:57,637 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 432 places, 558 transitions, 17033 flow [2021-03-25 09:31:57,637 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 432 places, 558 transitions, 17033 flow [2021-03-25 09:31:57,642 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 427 places, 558 transitions, 17033 flow [2021-03-25 09:31:57,838 INFO L129 PetriNetUnfolder]: 504/1161 cut-off events. [2021-03-25 09:31:57,838 INFO L130 PetriNetUnfolder]: For 58718/58721 co-relation queries the response was YES. [2021-03-25 09:31:57,851 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14602 conditions, 1161 events. 504/1161 cut-off events. For 58718/58721 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 7766 event pairs, 4 based on Foata normal form. 1/1027 useless extension candidates. Maximal degree in co-relation 14353. Up to 324 conditions per place. [2021-03-25 09:31:57,865 INFO L142 LiptonReduction]: Number of co-enabled transitions 1904 [2021-03-25 09:31:57,901 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:57,901 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:57,901 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 264 [2021-03-25 09:31:57,901 INFO L480 AbstractCegarLoop]: Abstraction has has 427 places, 558 transitions, 17033 flow [2021-03-25 09:31:57,902 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:57,902 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:57,902 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:57,902 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-03-25 09:31:57,902 INFO L428 AbstractCegarLoop]: === Iteration 98 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:57,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:57,902 INFO L82 PathProgramCache]: Analyzing trace with hash 754396903, now seen corresponding path program 28 times [2021-03-25 09:31:57,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:57,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776139825] [2021-03-25 09:31:57,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:57,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:57,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:57,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:57,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:57,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:57,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:57,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:57,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:57,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:57,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:57,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:57,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:57,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:57,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:57,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:31:57,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:57,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:57,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:57,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:57,988 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:57,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:58,002 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:31:58,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:58,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:58,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776139825] [2021-03-25 09:31:58,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:58,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:31:58,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832111300] [2021-03-25 09:31:58,004 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:31:58,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:58,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:31:58,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:31:58,005 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 116 [2021-03-25 09:31:58,005 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 427 places, 558 transitions, 17033 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:58,005 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:58,005 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 116 [2021-03-25 09:31:58,005 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:58,634 INFO L129 PetriNetUnfolder]: 557/1238 cut-off events. [2021-03-25 09:31:58,634 INFO L130 PetriNetUnfolder]: For 60889/60893 co-relation queries the response was YES. [2021-03-25 09:31:58,648 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15921 conditions, 1238 events. 557/1238 cut-off events. For 60889/60893 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 8076 event pairs, 8 based on Foata normal form. 5/1103 useless extension candidates. Maximal degree in co-relation 15681. Up to 772 conditions per place. [2021-03-25 09:31:58,654 INFO L132 encePairwiseOnDemand]: 98/116 looper letters, 481 selfloop transitions, 58 changer transitions 11/568 dead transitions. [2021-03-25 09:31:58,654 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 568 transitions, 18245 flow [2021-03-25 09:31:58,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 09:31:58,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 09:31:58,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 843 transitions. [2021-03-25 09:31:58,655 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4542025862068966 [2021-03-25 09:31:58,655 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 843 transitions. [2021-03-25 09:31:58,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 843 transitions. [2021-03-25 09:31:58,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:58,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 843 transitions. [2021-03-25 09:31:58,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 52.6875) internal successors, (843), 16 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:58,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 116.0) internal successors, (1972), 17 states have internal predecessors, (1972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:58,657 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 116.0) internal successors, (1972), 17 states have internal predecessors, (1972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:58,657 INFO L185 Difference]: Start difference. First operand has 427 places, 558 transitions, 17033 flow. Second operand 16 states and 843 transitions. [2021-03-25 09:31:58,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 568 transitions, 18245 flow [2021-03-25 09:31:59,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 568 transitions, 17267 flow, removed 106 selfloop flow, removed 23 redundant places. [2021-03-25 09:31:59,047 INFO L241 Difference]: Finished difference. Result has 421 places, 549 transitions, 16009 flow [2021-03-25 09:31:59,048 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=16060, PETRI_DIFFERENCE_MINUEND_PLACES=404, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=558, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=500, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=16009, PETRI_PLACES=421, PETRI_TRANSITIONS=549} [2021-03-25 09:31:59,048 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 360 predicate places. [2021-03-25 09:31:59,048 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:31:59,048 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 421 places, 549 transitions, 16009 flow [2021-03-25 09:31:59,048 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 421 places, 549 transitions, 16009 flow [2021-03-25 09:31:59,053 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 413 places, 549 transitions, 16009 flow [2021-03-25 09:31:59,254 INFO L129 PetriNetUnfolder]: 500/1124 cut-off events. [2021-03-25 09:31:59,255 INFO L130 PetriNetUnfolder]: For 52457/52464 co-relation queries the response was YES. [2021-03-25 09:31:59,266 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13775 conditions, 1124 events. 500/1124 cut-off events. For 52457/52464 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 7328 event pairs, 5 based on Foata normal form. 1/994 useless extension candidates. Maximal degree in co-relation 13581. Up to 312 conditions per place. [2021-03-25 09:31:59,279 INFO L142 LiptonReduction]: Number of co-enabled transitions 1832 [2021-03-25 09:31:59,310 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:31:59,311 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:31:59,311 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 263 [2021-03-25 09:31:59,311 INFO L480 AbstractCegarLoop]: Abstraction has has 413 places, 549 transitions, 16009 flow [2021-03-25 09:31:59,311 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:59,311 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:31:59,311 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:31:59,311 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-03-25 09:31:59,311 INFO L428 AbstractCegarLoop]: === Iteration 99 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:31:59,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:31:59,311 INFO L82 PathProgramCache]: Analyzing trace with hash -1931893941, now seen corresponding path program 29 times [2021-03-25 09:31:59,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:31:59,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048548571] [2021-03-25 09:31:59,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:31:59,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:31:59,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:59,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:31:59,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:59,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:31:59,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:59,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:59,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:59,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:59,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:59,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:59,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:59,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:59,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:59,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:59,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:59,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:59,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:31:59,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:31:59,389 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:31:59,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:31:59,392 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:31:59,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:31:59,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:31:59,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048548571] [2021-03-25 09:31:59,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:31:59,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:31:59,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772645164] [2021-03-25 09:31:59,394 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:31:59,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:31:59,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:31:59,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:31:59,395 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 116 [2021-03-25 09:31:59,395 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 413 places, 549 transitions, 16009 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:59,395 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:31:59,395 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 116 [2021-03-25 09:31:59,395 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:31:59,895 INFO L129 PetriNetUnfolder]: 552/1211 cut-off events. [2021-03-25 09:31:59,895 INFO L130 PetriNetUnfolder]: For 52639/52651 co-relation queries the response was YES. [2021-03-25 09:31:59,908 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14974 conditions, 1211 events. 552/1211 cut-off events. For 52639/52651 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 7809 event pairs, 3 based on Foata normal form. 13/1088 useless extension candidates. Maximal degree in co-relation 14792. Up to 771 conditions per place. [2021-03-25 09:31:59,913 INFO L132 encePairwiseOnDemand]: 98/116 looper letters, 483 selfloop transitions, 56 changer transitions 0/557 dead transitions. [2021-03-25 09:31:59,913 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 557 transitions, 17135 flow [2021-03-25 09:31:59,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:31:59,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:31:59,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 591 transitions. [2021-03-25 09:31:59,914 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.46316614420062696 [2021-03-25 09:31:59,914 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 591 transitions. [2021-03-25 09:31:59,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 591 transitions. [2021-03-25 09:31:59,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:31:59,914 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 591 transitions. [2021-03-25 09:31:59,914 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 53.72727272727273) internal successors, (591), 11 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:59,915 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 116.0) internal successors, (1392), 12 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:59,915 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 116.0) internal successors, (1392), 12 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:31:59,915 INFO L185 Difference]: Start difference. First operand has 413 places, 549 transitions, 16009 flow. Second operand 11 states and 591 transitions. [2021-03-25 09:31:59,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 557 transitions, 17135 flow [2021-03-25 09:32:00,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 402 places, 557 transitions, 16777 flow, removed 30 selfloop flow, removed 21 redundant places. [2021-03-25 09:32:00,250 INFO L241 Difference]: Finished difference. Result has 403 places, 549 transitions, 15782 flow [2021-03-25 09:32:00,250 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=15651, PETRI_DIFFERENCE_MINUEND_PLACES=392, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=549, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=493, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=15782, PETRI_PLACES=403, PETRI_TRANSITIONS=549} [2021-03-25 09:32:00,250 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 342 predicate places. [2021-03-25 09:32:00,250 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:00,250 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 403 places, 549 transitions, 15782 flow [2021-03-25 09:32:00,250 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 403 places, 549 transitions, 15782 flow [2021-03-25 09:32:00,255 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 403 places, 549 transitions, 15782 flow [2021-03-25 09:32:00,426 INFO L129 PetriNetUnfolder]: 498/1126 cut-off events. [2021-03-25 09:32:00,426 INFO L130 PetriNetUnfolder]: For 49984/49987 co-relation queries the response was YES. [2021-03-25 09:32:00,437 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13383 conditions, 1126 events. 498/1126 cut-off events. For 49984/49987 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 7360 event pairs, 4 based on Foata normal form. 1/997 useless extension candidates. Maximal degree in co-relation 13136. Up to 308 conditions per place. [2021-03-25 09:32:00,449 INFO L142 LiptonReduction]: Number of co-enabled transitions 1832 [2021-03-25 09:32:00,483 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:32:00,483 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:32:00,484 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 234 [2021-03-25 09:32:00,484 INFO L480 AbstractCegarLoop]: Abstraction has has 403 places, 549 transitions, 15782 flow [2021-03-25 09:32:00,484 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:00,484 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:00,484 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:32:00,484 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-03-25 09:32:00,484 INFO L428 AbstractCegarLoop]: === Iteration 100 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:32:00,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:00,484 INFO L82 PathProgramCache]: Analyzing trace with hash -306123583, now seen corresponding path program 30 times [2021-03-25 09:32:00,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:00,484 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581010838] [2021-03-25 09:32:00,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:00,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:00,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:00,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:00,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:32:00,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:00,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:00,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:00,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:00,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:00,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:00,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:00,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:00,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:00,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:00,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:00,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:00,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:00,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:00,577 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:32:00,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:00,588 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:32:00,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:00,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:32:00,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581010838] [2021-03-25 09:32:00,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:00,592 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:32:00,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096658752] [2021-03-25 09:32:00,592 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:32:00,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:00,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:32:00,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:32:00,593 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 116 [2021-03-25 09:32:00,593 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 549 transitions, 15782 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:00,593 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:00,593 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 116 [2021-03-25 09:32:00,593 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:01,211 INFO L129 PetriNetUnfolder]: 574/1273 cut-off events. [2021-03-25 09:32:01,211 INFO L130 PetriNetUnfolder]: For 52199/52203 co-relation queries the response was YES. [2021-03-25 09:32:01,224 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15292 conditions, 1273 events. 574/1273 cut-off events. For 52199/52203 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 8353 event pairs, 11 based on Foata normal form. 5/1129 useless extension candidates. Maximal degree in co-relation 15034. Up to 676 conditions per place. [2021-03-25 09:32:01,229 INFO L132 encePairwiseOnDemand]: 98/116 looper letters, 363 selfloop transitions, 179 changer transitions 27/587 dead transitions. [2021-03-25 09:32:01,229 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 587 transitions, 18095 flow [2021-03-25 09:32:01,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 09:32:01,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 09:32:01,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 821 transitions. [2021-03-25 09:32:01,230 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.47183908045977013 [2021-03-25 09:32:01,230 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 821 transitions. [2021-03-25 09:32:01,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 821 transitions. [2021-03-25 09:32:01,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:01,231 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 821 transitions. [2021-03-25 09:32:01,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 54.733333333333334) internal successors, (821), 15 states have internal predecessors, (821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:01,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 116.0) internal successors, (1856), 16 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:01,232 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 116.0) internal successors, (1856), 16 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:01,232 INFO L185 Difference]: Start difference. First operand has 403 places, 549 transitions, 15782 flow. Second operand 15 states and 821 transitions. [2021-03-25 09:32:01,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 587 transitions, 18095 flow [2021-03-25 09:32:01,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 410 places, 587 transitions, 17999 flow, removed 3 selfloop flow, removed 7 redundant places. [2021-03-25 09:32:01,605 INFO L241 Difference]: Finished difference. Result has 417 places, 547 transitions, 16390 flow [2021-03-25 09:32:01,606 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=15686, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=549, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=165, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=376, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=16390, PETRI_PLACES=417, PETRI_TRANSITIONS=547} [2021-03-25 09:32:01,606 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 356 predicate places. [2021-03-25 09:32:01,606 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:01,606 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 417 places, 547 transitions, 16390 flow [2021-03-25 09:32:01,606 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 417 places, 547 transitions, 16390 flow [2021-03-25 09:32:01,611 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 414 places, 547 transitions, 16390 flow [2021-03-25 09:32:01,787 INFO L129 PetriNetUnfolder]: 480/1067 cut-off events. [2021-03-25 09:32:01,787 INFO L130 PetriNetUnfolder]: For 54492/54496 co-relation queries the response was YES. [2021-03-25 09:32:01,799 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13774 conditions, 1067 events. 480/1067 cut-off events. For 54492/54496 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 6829 event pairs, 8 based on Foata normal form. 2/961 useless extension candidates. Maximal degree in co-relation 13523. Up to 311 conditions per place. [2021-03-25 09:32:01,811 INFO L142 LiptonReduction]: Number of co-enabled transitions 1794 [2021-03-25 09:32:01,907 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:32:01,907 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:32:01,907 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 301 [2021-03-25 09:32:01,908 INFO L480 AbstractCegarLoop]: Abstraction has has 414 places, 547 transitions, 16391 flow [2021-03-25 09:32:01,908 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:01,908 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:01,908 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:32:01,908 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-03-25 09:32:01,908 INFO L428 AbstractCegarLoop]: === Iteration 101 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:32:01,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:01,908 INFO L82 PathProgramCache]: Analyzing trace with hash -131183475, now seen corresponding path program 31 times [2021-03-25 09:32:01,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:01,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503059558] [2021-03-25 09:32:01,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:01,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:01,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:01,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:01,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:01,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:32:01,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:01,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:01,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:01,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:01,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:01,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:01,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:01,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:01,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:01,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:01,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:01,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:01,972 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:32:01,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:32:01,984 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:32:01,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:01,997 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:32:01,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:01,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:32:01,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503059558] [2021-03-25 09:32:01,999 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:01,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:32:02,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277703682] [2021-03-25 09:32:02,000 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:32:02,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:02,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:32:02,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:32:02,000 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 117 [2021-03-25 09:32:02,001 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 547 transitions, 16391 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:02,001 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:02,001 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 117 [2021-03-25 09:32:02,001 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:02,692 INFO L129 PetriNetUnfolder]: 546/1185 cut-off events. [2021-03-25 09:32:02,692 INFO L130 PetriNetUnfolder]: For 57337/57341 co-relation queries the response was YES. [2021-03-25 09:32:02,703 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15291 conditions, 1185 events. 546/1185 cut-off events. For 57337/57341 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 7558 event pairs, 11 based on Foata normal form. 6/1064 useless extension candidates. Maximal degree in co-relation 15048. Up to 686 conditions per place. [2021-03-25 09:32:02,709 INFO L132 encePairwiseOnDemand]: 98/117 looper letters, 373 selfloop transitions, 154 changer transitions 19/564 dead transitions. [2021-03-25 09:32:02,709 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 564 transitions, 18017 flow [2021-03-25 09:32:02,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-25 09:32:02,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-25 09:32:02,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 919 transitions. [2021-03-25 09:32:02,710 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4620412267471091 [2021-03-25 09:32:02,710 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 919 transitions. [2021-03-25 09:32:02,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 919 transitions. [2021-03-25 09:32:02,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:02,711 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 919 transitions. [2021-03-25 09:32:02,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 54.05882352941177) internal successors, (919), 17 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:02,712 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 117.0) internal successors, (2106), 18 states have internal predecessors, (2106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:02,712 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 117.0) internal successors, (2106), 18 states have internal predecessors, (2106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:02,712 INFO L185 Difference]: Start difference. First operand has 414 places, 547 transitions, 16391 flow. Second operand 17 states and 919 transitions. [2021-03-25 09:32:02,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 564 transitions, 18017 flow [2021-03-25 09:32:03,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 403 places, 564 transitions, 17099 flow, removed 190 selfloop flow, removed 27 redundant places. [2021-03-25 09:32:03,076 INFO L241 Difference]: Finished difference. Result has 407 places, 535 transitions, 15419 flow [2021-03-25 09:32:03,077 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=15507, PETRI_DIFFERENCE_MINUEND_PLACES=387, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=547, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=151, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=15419, PETRI_PLACES=407, PETRI_TRANSITIONS=535} [2021-03-25 09:32:03,077 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 346 predicate places. [2021-03-25 09:32:03,077 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:03,077 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 407 places, 535 transitions, 15419 flow [2021-03-25 09:32:03,077 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 407 places, 535 transitions, 15419 flow [2021-03-25 09:32:03,082 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 404 places, 535 transitions, 15419 flow [2021-03-25 09:32:03,253 INFO L129 PetriNetUnfolder]: 478/1055 cut-off events. [2021-03-25 09:32:03,254 INFO L130 PetriNetUnfolder]: For 51948/51957 co-relation queries the response was YES. [2021-03-25 09:32:03,265 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13052 conditions, 1055 events. 478/1055 cut-off events. For 51948/51957 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 6750 event pairs, 1 based on Foata normal form. 1/943 useless extension candidates. Maximal degree in co-relation 12889. Up to 302 conditions per place. [2021-03-25 09:32:03,278 INFO L142 LiptonReduction]: Number of co-enabled transitions 1738 [2021-03-25 09:32:03,311 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:32:03,311 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:32:03,311 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 234 [2021-03-25 09:32:03,311 INFO L480 AbstractCegarLoop]: Abstraction has has 404 places, 535 transitions, 15419 flow [2021-03-25 09:32:03,311 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:03,311 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:03,311 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:32:03,312 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-03-25 09:32:03,312 INFO L428 AbstractCegarLoop]: === Iteration 102 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:32:03,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:03,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1414140484, now seen corresponding path program 1 times [2021-03-25 09:32:03,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:03,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326455049] [2021-03-25 09:32:03,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:03,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:03,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:03,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:03,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:03,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:32:03,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:03,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:03,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:03,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:03,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:03,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:03,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:03,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:03,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:03,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:03,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:03,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:03,371 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:32:03,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:03,383 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:32:03,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:03,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:32:03,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326455049] [2021-03-25 09:32:03,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:03,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:32:03,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497705491] [2021-03-25 09:32:03,386 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:32:03,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:03,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:32:03,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:32:03,387 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 117 [2021-03-25 09:32:03,387 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 535 transitions, 15419 flow. Second operand has 9 states, 9 states have (on average 49.333333333333336) internal successors, (444), 9 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:03,387 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:03,387 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 117 [2021-03-25 09:32:03,387 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:03,856 INFO L129 PetriNetUnfolder]: 542/1173 cut-off events. [2021-03-25 09:32:03,856 INFO L130 PetriNetUnfolder]: For 57115/57119 co-relation queries the response was YES. [2021-03-25 09:32:03,868 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14866 conditions, 1173 events. 542/1173 cut-off events. For 57115/57119 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 7455 event pairs, 13 based on Foata normal form. 5/1056 useless extension candidates. Maximal degree in co-relation 14701. Up to 669 conditions per place. [2021-03-25 09:32:03,873 INFO L132 encePairwiseOnDemand]: 100/117 looper letters, 374 selfloop transitions, 166 changer transitions 6/564 dead transitions. [2021-03-25 09:32:03,873 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 412 places, 564 transitions, 17415 flow [2021-03-25 09:32:03,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 09:32:03,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 09:32:03,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 505 transitions. [2021-03-25 09:32:03,874 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4795821462488129 [2021-03-25 09:32:03,874 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 505 transitions. [2021-03-25 09:32:03,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 505 transitions. [2021-03-25 09:32:03,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:03,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 505 transitions. [2021-03-25 09:32:03,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 56.111111111111114) internal successors, (505), 9 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:03,875 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 117.0) internal successors, (1170), 10 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:03,876 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 117.0) internal successors, (1170), 10 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:03,876 INFO L185 Difference]: Start difference. First operand has 404 places, 535 transitions, 15419 flow. Second operand 9 states and 505 transitions. [2021-03-25 09:32:03,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 412 places, 564 transitions, 17415 flow [2021-03-25 09:32:04,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 564 transitions, 16755 flow, removed 121 selfloop flow, removed 31 redundant places. [2021-03-25 09:32:04,218 INFO L241 Difference]: Finished difference. Result has 385 places, 548 transitions, 15891 flow [2021-03-25 09:32:04,218 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=14793, PETRI_DIFFERENCE_MINUEND_PLACES=373, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=535, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=153, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=15891, PETRI_PLACES=385, PETRI_TRANSITIONS=548} [2021-03-25 09:32:04,218 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 324 predicate places. [2021-03-25 09:32:04,218 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:04,218 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 385 places, 548 transitions, 15891 flow [2021-03-25 09:32:04,218 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 385 places, 548 transitions, 15891 flow [2021-03-25 09:32:04,223 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 384 places, 548 transitions, 15891 flow [2021-03-25 09:32:04,389 INFO L129 PetriNetUnfolder]: 487/1066 cut-off events. [2021-03-25 09:32:04,389 INFO L130 PetriNetUnfolder]: For 51879/51914 co-relation queries the response was YES. [2021-03-25 09:32:04,399 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13318 conditions, 1066 events. 487/1066 cut-off events. For 51879/51914 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 6767 event pairs, 6 based on Foata normal form. 5/955 useless extension candidates. Maximal degree in co-relation 13098. Up to 316 conditions per place. [2021-03-25 09:32:04,411 INFO L142 LiptonReduction]: Number of co-enabled transitions 1726 [2021-03-25 09:32:04,445 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:32:04,445 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:32:04,445 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 227 [2021-03-25 09:32:04,445 INFO L480 AbstractCegarLoop]: Abstraction has has 384 places, 548 transitions, 15891 flow [2021-03-25 09:32:04,445 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 49.333333333333336) internal successors, (444), 9 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:04,445 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:04,445 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:32:04,445 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-03-25 09:32:04,446 INFO L428 AbstractCegarLoop]: === Iteration 103 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:32:04,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:04,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1240482245, now seen corresponding path program 32 times [2021-03-25 09:32:04,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:04,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806051689] [2021-03-25 09:32:04,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:04,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:04,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:04,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:04,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:04,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:32:04,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:04,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:04,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:04,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:04,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:04,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:04,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:04,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:04,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:04,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:32:04,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:04,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:04,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:04,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:04,532 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:32:04,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:04,545 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:32:04,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:04,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:32:04,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806051689] [2021-03-25 09:32:04,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:04,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:32:04,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267060842] [2021-03-25 09:32:04,547 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:32:04,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:04,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:32:04,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:32:04,548 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 117 [2021-03-25 09:32:04,548 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 548 transitions, 15891 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:04,548 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:04,548 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 117 [2021-03-25 09:32:04,548 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:05,119 INFO L129 PetriNetUnfolder]: 539/1169 cut-off events. [2021-03-25 09:32:05,120 INFO L130 PetriNetUnfolder]: For 51220/51232 co-relation queries the response was YES. [2021-03-25 09:32:05,131 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14599 conditions, 1169 events. 539/1169 cut-off events. For 51220/51232 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 7384 event pairs, 4 based on Foata normal form. 13/1062 useless extension candidates. Maximal degree in co-relation 14371. Up to 749 conditions per place. [2021-03-25 09:32:05,136 INFO L132 encePairwiseOnDemand]: 99/117 looper letters, 465 selfloop transitions, 60 changer transitions 21/564 dead transitions. [2021-03-25 09:32:05,136 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 398 places, 564 transitions, 17120 flow [2021-03-25 09:32:05,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 09:32:05,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 09:32:05,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 792 transitions. [2021-03-25 09:32:05,137 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4512820512820513 [2021-03-25 09:32:05,137 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 792 transitions. [2021-03-25 09:32:05,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 792 transitions. [2021-03-25 09:32:05,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:05,137 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 792 transitions. [2021-03-25 09:32:05,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 52.8) internal successors, (792), 15 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:05,139 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 117.0) internal successors, (1872), 16 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:05,139 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 117.0) internal successors, (1872), 16 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:05,139 INFO L185 Difference]: Start difference. First operand has 384 places, 548 transitions, 15891 flow. Second operand 15 states and 792 transitions. [2021-03-25 09:32:05,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 398 places, 564 transitions, 17120 flow [2021-03-25 09:32:05,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 564 transitions, 16943 flow, removed 55 selfloop flow, removed 5 redundant places. [2021-03-25 09:32:05,471 INFO L241 Difference]: Finished difference. Result has 396 places, 533 transitions, 15232 flow [2021-03-25 09:32:05,471 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=15718, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=548, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=488, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=15232, PETRI_PLACES=396, PETRI_TRANSITIONS=533} [2021-03-25 09:32:05,471 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 335 predicate places. [2021-03-25 09:32:05,471 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:05,471 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 396 places, 533 transitions, 15232 flow [2021-03-25 09:32:05,471 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 396 places, 533 transitions, 15232 flow [2021-03-25 09:32:05,476 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 389 places, 533 transitions, 15232 flow [2021-03-25 09:32:05,641 INFO L129 PetriNetUnfolder]: 487/1068 cut-off events. [2021-03-25 09:32:05,641 INFO L130 PetriNetUnfolder]: For 49374/49381 co-relation queries the response was YES. [2021-03-25 09:32:05,652 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12995 conditions, 1068 events. 487/1068 cut-off events. For 49374/49381 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 6744 event pairs, 4 based on Foata normal form. 1/950 useless extension candidates. Maximal degree in co-relation 12847. Up to 309 conditions per place. [2021-03-25 09:32:05,663 INFO L142 LiptonReduction]: Number of co-enabled transitions 1718 [2021-03-25 09:32:05,755 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:32:05,755 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:32:05,755 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 284 [2021-03-25 09:32:05,755 INFO L480 AbstractCegarLoop]: Abstraction has has 389 places, 533 transitions, 15235 flow [2021-03-25 09:32:05,755 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:05,756 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:05,756 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:32:05,756 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-03-25 09:32:05,756 INFO L428 AbstractCegarLoop]: === Iteration 104 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:32:05,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:05,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1546118709, now seen corresponding path program 33 times [2021-03-25 09:32:05,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:05,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597453297] [2021-03-25 09:32:05,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:05,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:05,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:05,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:05,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:05,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:32:05,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:05,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:05,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:05,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:05,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:05,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:05,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:05,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:32:05,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:05,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:05,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:05,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:05,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:05,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:05,833 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:32:05,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:05,839 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:32:05,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:05,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:32:05,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597453297] [2021-03-25 09:32:05,842 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:05,842 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:32:05,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858096021] [2021-03-25 09:32:05,842 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:32:05,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:05,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:32:05,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:32:05,843 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 118 [2021-03-25 09:32:05,843 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 389 places, 533 transitions, 15235 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:05,843 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:05,843 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 118 [2021-03-25 09:32:05,843 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:06,385 INFO L129 PetriNetUnfolder]: 538/1155 cut-off events. [2021-03-25 09:32:06,385 INFO L130 PetriNetUnfolder]: For 50727/50737 co-relation queries the response was YES. [2021-03-25 09:32:06,395 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14371 conditions, 1155 events. 538/1155 cut-off events. For 50727/50737 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 7247 event pairs, 4 based on Foata normal form. 11/1046 useless extension candidates. Maximal degree in co-relation 14221. Up to 621 conditions per place. [2021-03-25 09:32:06,400 INFO L132 encePairwiseOnDemand]: 99/118 looper letters, 297 selfloop transitions, 230 changer transitions 12/557 dead transitions. [2021-03-25 09:32:06,400 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 557 transitions, 16900 flow [2021-03-25 09:32:06,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:32:06,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:32:06,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 610 transitions. [2021-03-25 09:32:06,401 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4699537750385208 [2021-03-25 09:32:06,401 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 610 transitions. [2021-03-25 09:32:06,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 610 transitions. [2021-03-25 09:32:06,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:06,401 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 610 transitions. [2021-03-25 09:32:06,402 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 55.45454545454545) internal successors, (610), 11 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:06,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 118.0) internal successors, (1416), 12 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:06,402 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 118.0) internal successors, (1416), 12 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:06,402 INFO L185 Difference]: Start difference. First operand has 389 places, 533 transitions, 15235 flow. Second operand 11 states and 610 transitions. [2021-03-25 09:32:06,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 557 transitions, 16900 flow [2021-03-25 09:32:06,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 557 transitions, 16202 flow, removed 221 selfloop flow, removed 26 redundant places. [2021-03-25 09:32:06,722 INFO L241 Difference]: Finished difference. Result has 377 places, 537 transitions, 15415 flow [2021-03-25 09:32:06,722 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=14540, PETRI_DIFFERENCE_MINUEND_PLACES=363, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=533, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=222, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=15415, PETRI_PLACES=377, PETRI_TRANSITIONS=537} [2021-03-25 09:32:06,723 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 316 predicate places. [2021-03-25 09:32:06,723 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:06,723 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 377 places, 537 transitions, 15415 flow [2021-03-25 09:32:06,723 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 377 places, 537 transitions, 15415 flow [2021-03-25 09:32:06,728 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 375 places, 537 transitions, 15415 flow [2021-03-25 09:32:06,887 INFO L129 PetriNetUnfolder]: 480/1055 cut-off events. [2021-03-25 09:32:06,887 INFO L130 PetriNetUnfolder]: For 50714/50721 co-relation queries the response was YES. [2021-03-25 09:32:06,897 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13121 conditions, 1055 events. 480/1055 cut-off events. For 50714/50721 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 6709 event pairs, 6 based on Foata normal form. 1/943 useless extension candidates. Maximal degree in co-relation 12908. Up to 312 conditions per place. [2021-03-25 09:32:06,909 INFO L142 LiptonReduction]: Number of co-enabled transitions 1710 [2021-03-25 09:32:06,940 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:32:06,941 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:32:06,941 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 218 [2021-03-25 09:32:06,941 INFO L480 AbstractCegarLoop]: Abstraction has has 375 places, 537 transitions, 15415 flow [2021-03-25 09:32:06,941 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:06,941 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:06,941 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:32:06,941 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-03-25 09:32:06,941 INFO L428 AbstractCegarLoop]: === Iteration 105 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:32:06,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:06,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1471947089, now seen corresponding path program 34 times [2021-03-25 09:32:06,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:06,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054168793] [2021-03-25 09:32:06,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:06,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:06,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:06,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:06,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:06,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:32:06,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:06,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:06,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:06,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:06,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:06,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:06,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:06,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:32:06,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:06,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:06,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:06,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:07,004 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:32:07,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:32:07,017 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:32:07,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:07,022 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:32:07,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:07,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:32:07,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054168793] [2021-03-25 09:32:07,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:07,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:32:07,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71885951] [2021-03-25 09:32:07,025 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:32:07,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:07,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:32:07,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:32:07,026 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 118 [2021-03-25 09:32:07,026 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 537 transitions, 15415 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:07,026 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:07,026 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 118 [2021-03-25 09:32:07,026 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:07,565 INFO L129 PetriNetUnfolder]: 540/1167 cut-off events. [2021-03-25 09:32:07,565 INFO L130 PetriNetUnfolder]: For 53163/53169 co-relation queries the response was YES. [2021-03-25 09:32:07,576 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14681 conditions, 1167 events. 540/1167 cut-off events. For 53163/53169 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 7353 event pairs, 5 based on Foata normal form. 7/1053 useless extension candidates. Maximal degree in co-relation 14460. Up to 661 conditions per place. [2021-03-25 09:32:07,581 INFO L132 encePairwiseOnDemand]: 100/118 looper letters, 346 selfloop transitions, 193 changer transitions 9/566 dead transitions. [2021-03-25 09:32:07,582 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 566 transitions, 17395 flow [2021-03-25 09:32:07,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:32:07,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:32:07,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 706 transitions. [2021-03-25 09:32:07,583 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4602346805736636 [2021-03-25 09:32:07,583 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 706 transitions. [2021-03-25 09:32:07,583 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 706 transitions. [2021-03-25 09:32:07,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:07,583 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 706 transitions. [2021-03-25 09:32:07,583 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 54.30769230769231) internal successors, (706), 13 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:07,584 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 118.0) internal successors, (1652), 14 states have internal predecessors, (1652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:07,584 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 118.0) internal successors, (1652), 14 states have internal predecessors, (1652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:07,584 INFO L185 Difference]: Start difference. First operand has 375 places, 537 transitions, 15415 flow. Second operand 13 states and 706 transitions. [2021-03-25 09:32:07,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 566 transitions, 17395 flow [2021-03-25 09:32:07,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 566 transitions, 16439 flow, removed 151 selfloop flow, removed 12 redundant places. [2021-03-25 09:32:07,935 INFO L241 Difference]: Finished difference. Result has 380 places, 548 transitions, 15503 flow [2021-03-25 09:32:07,936 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=14554, PETRI_DIFFERENCE_MINUEND_PLACES=363, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=537, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=178, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=15503, PETRI_PLACES=380, PETRI_TRANSITIONS=548} [2021-03-25 09:32:07,936 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 319 predicate places. [2021-03-25 09:32:07,936 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:07,936 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 380 places, 548 transitions, 15503 flow [2021-03-25 09:32:07,936 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 380 places, 548 transitions, 15503 flow [2021-03-25 09:32:07,941 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 378 places, 548 transitions, 15503 flow [2021-03-25 09:32:08,108 INFO L129 PetriNetUnfolder]: 488/1079 cut-off events. [2021-03-25 09:32:08,108 INFO L130 PetriNetUnfolder]: For 49696/49703 co-relation queries the response was YES. [2021-03-25 09:32:08,119 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13020 conditions, 1079 events. 488/1079 cut-off events. For 49696/49703 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 6929 event pairs, 6 based on Foata normal form. 1/961 useless extension candidates. Maximal degree in co-relation 12856. Up to 295 conditions per place. [2021-03-25 09:32:08,132 INFO L142 LiptonReduction]: Number of co-enabled transitions 1738 [2021-03-25 09:32:08,166 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:32:08,166 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:32:08,166 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 230 [2021-03-25 09:32:08,166 INFO L480 AbstractCegarLoop]: Abstraction has has 378 places, 548 transitions, 15503 flow [2021-03-25 09:32:08,167 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:08,167 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:08,167 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:32:08,167 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-03-25 09:32:08,167 INFO L428 AbstractCegarLoop]: === Iteration 106 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:32:08,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:08,167 INFO L82 PathProgramCache]: Analyzing trace with hash -569567615, now seen corresponding path program 35 times [2021-03-25 09:32:08,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:08,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132262510] [2021-03-25 09:32:08,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:08,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:08,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:08,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:08,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:08,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:32:08,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:08,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:08,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:08,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:08,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:08,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:08,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:08,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:08,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:08,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:08,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:08,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:08,221 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:32:08,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:08,233 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:32:08,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:08,246 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:32:08,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:08,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:32:08,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132262510] [2021-03-25 09:32:08,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:08,248 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:32:08,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113203960] [2021-03-25 09:32:08,249 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:32:08,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:08,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:32:08,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:32:08,249 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 118 [2021-03-25 09:32:08,249 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 548 transitions, 15503 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:08,249 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:08,249 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 118 [2021-03-25 09:32:08,249 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:08,795 INFO L129 PetriNetUnfolder]: 539/1168 cut-off events. [2021-03-25 09:32:08,795 INFO L130 PetriNetUnfolder]: For 54770/54780 co-relation queries the response was YES. [2021-03-25 09:32:08,806 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14712 conditions, 1168 events. 539/1168 cut-off events. For 54770/54780 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 7383 event pairs, 11 based on Foata normal form. 12/1063 useless extension candidates. Maximal degree in co-relation 14546. Up to 675 conditions per place. [2021-03-25 09:32:08,811 INFO L132 encePairwiseOnDemand]: 100/118 looper letters, 417 selfloop transitions, 135 changer transitions 0/570 dead transitions. [2021-03-25 09:32:08,812 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 388 places, 570 transitions, 17385 flow [2021-03-25 09:32:08,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:32:08,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:32:08,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 609 transitions. [2021-03-25 09:32:08,813 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4691833590138675 [2021-03-25 09:32:08,813 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 609 transitions. [2021-03-25 09:32:08,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 609 transitions. [2021-03-25 09:32:08,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:08,813 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 609 transitions. [2021-03-25 09:32:08,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 55.36363636363637) internal successors, (609), 11 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:08,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 118.0) internal successors, (1416), 12 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:08,814 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 118.0) internal successors, (1416), 12 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:08,814 INFO L185 Difference]: Start difference. First operand has 378 places, 548 transitions, 15503 flow. Second operand 11 states and 609 transitions. [2021-03-25 09:32:08,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 388 places, 570 transitions, 17385 flow [2021-03-25 09:32:09,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 379 places, 570 transitions, 16784 flow, removed 144 selfloop flow, removed 9 redundant places. [2021-03-25 09:32:09,159 INFO L241 Difference]: Finished difference. Result has 382 places, 560 transitions, 15956 flow [2021-03-25 09:32:09,159 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=14902, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=548, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=126, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=15956, PETRI_PLACES=382, PETRI_TRANSITIONS=560} [2021-03-25 09:32:09,159 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 321 predicate places. [2021-03-25 09:32:09,159 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:09,159 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 382 places, 560 transitions, 15956 flow [2021-03-25 09:32:09,159 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 382 places, 560 transitions, 15956 flow [2021-03-25 09:32:09,164 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 382 places, 560 transitions, 15956 flow [2021-03-25 09:32:09,375 INFO L129 PetriNetUnfolder]: 507/1132 cut-off events. [2021-03-25 09:32:09,375 INFO L130 PetriNetUnfolder]: For 52731/52738 co-relation queries the response was YES. [2021-03-25 09:32:09,384 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13582 conditions, 1132 events. 507/1132 cut-off events. For 52731/52738 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 7378 event pairs, 6 based on Foata normal form. 1/1002 useless extension candidates. Maximal degree in co-relation 13367. Up to 307 conditions per place. [2021-03-25 09:32:09,396 INFO L142 LiptonReduction]: Number of co-enabled transitions 1824 [2021-03-25 09:32:09,489 INFO L154 LiptonReduction]: Checked pairs total: 5 [2021-03-25 09:32:09,489 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:32:09,489 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 330 [2021-03-25 09:32:09,489 INFO L480 AbstractCegarLoop]: Abstraction has has 382 places, 560 transitions, 16007 flow [2021-03-25 09:32:09,490 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:09,490 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:09,490 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:32:09,490 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-03-25 09:32:09,490 INFO L428 AbstractCegarLoop]: === Iteration 107 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:32:09,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:09,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1763428497, now seen corresponding path program 36 times [2021-03-25 09:32:09,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:09,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143027921] [2021-03-25 09:32:09,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:09,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:09,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:09,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:09,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:09,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:32:09,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:09,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:09,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:09,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:09,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:09,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:09,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:09,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:32:09,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:09,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:32:09,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:09,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:09,552 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:32:09,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:32:09,554 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:32:09,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:09,567 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:32:09,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:09,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:32:09,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143027921] [2021-03-25 09:32:09,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:09,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:32:09,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249456084] [2021-03-25 09:32:09,569 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:32:09,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:09,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:32:09,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:32:09,570 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 119 [2021-03-25 09:32:09,570 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 382 places, 560 transitions, 16007 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:09,570 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:09,570 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 119 [2021-03-25 09:32:09,570 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:10,123 INFO L129 PetriNetUnfolder]: 560/1229 cut-off events. [2021-03-25 09:32:10,123 INFO L130 PetriNetUnfolder]: For 57211/57217 co-relation queries the response was YES. [2021-03-25 09:32:10,136 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15169 conditions, 1229 events. 560/1229 cut-off events. For 57211/57217 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 7997 event pairs, 2 based on Foata normal form. 8/1102 useless extension candidates. Maximal degree in co-relation 14946. Up to 682 conditions per place. [2021-03-25 09:32:10,141 INFO L132 encePairwiseOnDemand]: 101/119 looper letters, 370 selfloop transitions, 183 changer transitions 8/579 dead transitions. [2021-03-25 09:32:10,141 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 579 transitions, 17781 flow [2021-03-25 09:32:10,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:32:10,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:32:10,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 609 transitions. [2021-03-25 09:32:10,142 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.46524064171123 [2021-03-25 09:32:10,142 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 609 transitions. [2021-03-25 09:32:10,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 609 transitions. [2021-03-25 09:32:10,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:10,143 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 609 transitions. [2021-03-25 09:32:10,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 55.36363636363637) internal successors, (609), 11 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:10,144 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 119.0) internal successors, (1428), 12 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:10,144 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 119.0) internal successors, (1428), 12 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:10,144 INFO L185 Difference]: Start difference. First operand has 382 places, 560 transitions, 16007 flow. Second operand 11 states and 609 transitions. [2021-03-25 09:32:10,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 579 transitions, 17781 flow [2021-03-25 09:32:10,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 579 transitions, 16725 flow, removed 434 selfloop flow, removed 6 redundant places. [2021-03-25 09:32:10,522 INFO L241 Difference]: Finished difference. Result has 389 places, 562 transitions, 15703 flow [2021-03-25 09:32:10,522 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=15083, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=560, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=175, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=381, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=15703, PETRI_PLACES=389, PETRI_TRANSITIONS=562} [2021-03-25 09:32:10,522 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 328 predicate places. [2021-03-25 09:32:10,522 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:10,522 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 389 places, 562 transitions, 15703 flow [2021-03-25 09:32:10,522 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 389 places, 562 transitions, 15703 flow [2021-03-25 09:32:10,527 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 389 places, 562 transitions, 15703 flow [2021-03-25 09:32:10,698 INFO L129 PetriNetUnfolder]: 509/1151 cut-off events. [2021-03-25 09:32:10,698 INFO L130 PetriNetUnfolder]: For 50596/50620 co-relation queries the response was YES. [2021-03-25 09:32:10,709 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13339 conditions, 1151 events. 509/1151 cut-off events. For 50596/50620 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 7638 event pairs, 7 based on Foata normal form. 1/1016 useless extension candidates. Maximal degree in co-relation 13120. Up to 301 conditions per place. [2021-03-25 09:32:10,720 INFO L142 LiptonReduction]: Number of co-enabled transitions 1900 [2021-03-25 09:32:10,755 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:32:10,755 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:32:10,756 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 234 [2021-03-25 09:32:10,756 INFO L480 AbstractCegarLoop]: Abstraction has has 389 places, 562 transitions, 15703 flow [2021-03-25 09:32:10,756 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:10,756 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:10,756 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:32:10,756 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-03-25 09:32:10,756 INFO L428 AbstractCegarLoop]: === Iteration 108 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:32:10,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:10,756 INFO L82 PathProgramCache]: Analyzing trace with hash -462349766, now seen corresponding path program 1 times [2021-03-25 09:32:10,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:10,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830861272] [2021-03-25 09:32:10,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:10,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:10,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:10,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:10,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:10,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:32:10,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:10,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:10,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:10,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:10,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:10,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:10,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:10,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:32:10,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:10,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:10,823 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:32:10,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:32:10,825 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:32:10,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:10,835 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:32:10,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:10,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:32:10,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830861272] [2021-03-25 09:32:10,837 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:10,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:32:10,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759719783] [2021-03-25 09:32:10,837 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:32:10,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:10,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:32:10,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:32:10,838 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 119 [2021-03-25 09:32:10,838 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 389 places, 562 transitions, 15703 flow. Second operand has 9 states, 9 states have (on average 49.333333333333336) internal successors, (444), 9 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:10,838 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:10,838 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 119 [2021-03-25 09:32:10,838 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:11,352 INFO L129 PetriNetUnfolder]: 563/1244 cut-off events. [2021-03-25 09:32:11,352 INFO L130 PetriNetUnfolder]: For 55385/55391 co-relation queries the response was YES. [2021-03-25 09:32:11,365 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14796 conditions, 1244 events. 563/1244 cut-off events. For 55385/55391 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 8170 event pairs, 4 based on Foata normal form. 7/1110 useless extension candidates. Maximal degree in co-relation 14569. Up to 651 conditions per place. [2021-03-25 09:32:11,370 INFO L132 encePairwiseOnDemand]: 101/119 looper letters, 365 selfloop transitions, 198 changer transitions 0/581 dead transitions. [2021-03-25 09:32:11,370 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 581 transitions, 17254 flow [2021-03-25 09:32:11,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 09:32:11,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 09:32:11,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 515 transitions. [2021-03-25 09:32:11,371 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.480859010270775 [2021-03-25 09:32:11,371 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 515 transitions. [2021-03-25 09:32:11,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 515 transitions. [2021-03-25 09:32:11,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:11,371 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 515 transitions. [2021-03-25 09:32:11,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 57.22222222222222) internal successors, (515), 9 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:11,372 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 119.0) internal successors, (1190), 10 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:11,372 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 119.0) internal successors, (1190), 10 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:11,372 INFO L185 Difference]: Start difference. First operand has 389 places, 562 transitions, 15703 flow. Second operand 9 states and 515 transitions. [2021-03-25 09:32:11,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 581 transitions, 17254 flow [2021-03-25 09:32:11,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 581 transitions, 16761 flow, removed 172 selfloop flow, removed 5 redundant places. [2021-03-25 09:32:11,727 INFO L241 Difference]: Finished difference. Result has 394 places, 568 transitions, 16045 flow [2021-03-25 09:32:11,727 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=15210, PETRI_DIFFERENCE_MINUEND_PLACES=384, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=562, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=193, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=16045, PETRI_PLACES=394, PETRI_TRANSITIONS=568} [2021-03-25 09:32:11,727 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 333 predicate places. [2021-03-25 09:32:11,727 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:11,727 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 394 places, 568 transitions, 16045 flow [2021-03-25 09:32:11,727 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 394 places, 568 transitions, 16045 flow [2021-03-25 09:32:11,732 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 394 places, 568 transitions, 16045 flow [2021-03-25 09:32:11,903 INFO L129 PetriNetUnfolder]: 521/1183 cut-off events. [2021-03-25 09:32:11,903 INFO L130 PetriNetUnfolder]: For 54297/54321 co-relation queries the response was YES. [2021-03-25 09:32:11,915 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13760 conditions, 1183 events. 521/1183 cut-off events. For 54297/54321 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 7899 event pairs, 5 based on Foata normal form. 1/1039 useless extension candidates. Maximal degree in co-relation 13538. Up to 301 conditions per place. [2021-03-25 09:32:11,928 INFO L142 LiptonReduction]: Number of co-enabled transitions 1946 [2021-03-25 09:32:11,965 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:32:11,965 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:32:11,965 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 238 [2021-03-25 09:32:11,965 INFO L480 AbstractCegarLoop]: Abstraction has has 394 places, 568 transitions, 16045 flow [2021-03-25 09:32:11,965 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 49.333333333333336) internal successors, (444), 9 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:11,965 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:11,965 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:32:11,965 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-03-25 09:32:11,965 INFO L428 AbstractCegarLoop]: === Iteration 109 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:32:11,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:11,966 INFO L82 PathProgramCache]: Analyzing trace with hash 1986951587, now seen corresponding path program 37 times [2021-03-25 09:32:11,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:11,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197137750] [2021-03-25 09:32:11,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:11,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:11,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:11,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:11,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:11,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:32:11,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:11,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:11,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:11,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:11,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:11,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:11,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:11,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:12,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:12,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:12,006 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:32:12,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:32:12,009 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:32:12,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:32:12,019 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:32:12,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:12,031 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:32:12,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:12,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:32:12,033 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197137750] [2021-03-25 09:32:12,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:12,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:32:12,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263159867] [2021-03-25 09:32:12,033 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:32:12,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:12,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:32:12,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:32:12,034 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 119 [2021-03-25 09:32:12,034 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 394 places, 568 transitions, 16045 flow. Second operand has 9 states, 9 states have (on average 49.44444444444444) internal successors, (445), 9 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:12,034 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:12,034 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 119 [2021-03-25 09:32:12,034 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:12,533 INFO L129 PetriNetUnfolder]: 574/1271 cut-off events. [2021-03-25 09:32:12,533 INFO L130 PetriNetUnfolder]: For 59760/59766 co-relation queries the response was YES. [2021-03-25 09:32:12,545 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15412 conditions, 1271 events. 574/1271 cut-off events. For 59760/59766 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 8408 event pairs, 4 based on Foata normal form. 7/1135 useless extension candidates. Maximal degree in co-relation 15182. Up to 747 conditions per place. [2021-03-25 09:32:12,551 INFO L132 encePairwiseOnDemand]: 102/119 looper letters, 437 selfloop transitions, 132 changer transitions 3/590 dead transitions. [2021-03-25 09:32:12,551 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 403 places, 590 transitions, 17903 flow [2021-03-25 09:32:12,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:32:12,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:32:12,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 550 transitions. [2021-03-25 09:32:12,552 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.46218487394957986 [2021-03-25 09:32:12,552 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 550 transitions. [2021-03-25 09:32:12,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 550 transitions. [2021-03-25 09:32:12,552 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:12,552 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 550 transitions. [2021-03-25 09:32:12,552 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 55.0) internal successors, (550), 10 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:12,553 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 119.0) internal successors, (1309), 11 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:12,553 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 119.0) internal successors, (1309), 11 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:12,553 INFO L185 Difference]: Start difference. First operand has 394 places, 568 transitions, 16045 flow. Second operand 10 states and 550 transitions. [2021-03-25 09:32:12,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 403 places, 590 transitions, 17903 flow [2021-03-25 09:32:12,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 590 transitions, 17584 flow, removed 77 selfloop flow, removed 5 redundant places. [2021-03-25 09:32:12,948 INFO L241 Difference]: Finished difference. Result has 403 places, 579 transitions, 16609 flow [2021-03-25 09:32:12,948 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=15726, PETRI_DIFFERENCE_MINUEND_PLACES=389, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=568, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=438, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=16609, PETRI_PLACES=403, PETRI_TRANSITIONS=579} [2021-03-25 09:32:12,948 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 342 predicate places. [2021-03-25 09:32:12,948 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:12,948 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 403 places, 579 transitions, 16609 flow [2021-03-25 09:32:12,948 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 403 places, 579 transitions, 16609 flow [2021-03-25 09:32:12,954 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 402 places, 579 transitions, 16609 flow [2021-03-25 09:32:13,146 INFO L129 PetriNetUnfolder]: 533/1207 cut-off events. [2021-03-25 09:32:13,146 INFO L130 PetriNetUnfolder]: For 57175/57243 co-relation queries the response was YES. [2021-03-25 09:32:13,159 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14238 conditions, 1207 events. 533/1207 cut-off events. For 57175/57243 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 8087 event pairs, 5 based on Foata normal form. 1/1059 useless extension candidates. Maximal degree in co-relation 14010. Up to 314 conditions per place. [2021-03-25 09:32:13,173 INFO L142 LiptonReduction]: Number of co-enabled transitions 1946 [2021-03-25 09:32:13,209 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:32:13,210 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:32:13,210 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 262 [2021-03-25 09:32:13,210 INFO L480 AbstractCegarLoop]: Abstraction has has 402 places, 579 transitions, 16609 flow [2021-03-25 09:32:13,210 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 49.44444444444444) internal successors, (445), 9 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:13,210 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:13,210 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:32:13,210 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-03-25 09:32:13,210 INFO L428 AbstractCegarLoop]: === Iteration 110 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:32:13,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:13,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1823719343, now seen corresponding path program 38 times [2021-03-25 09:32:13,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:13,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090244814] [2021-03-25 09:32:13,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:13,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:13,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:13,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:13,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:13,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:32:13,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:13,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:13,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:13,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:13,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:13,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:13,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:13,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:13,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:13,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:13,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:13,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:13,259 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:32:13,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:32:13,269 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:32:13,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:13,302 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:32:13,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:13,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:32:13,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090244814] [2021-03-25 09:32:13,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:13,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:32:13,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936244767] [2021-03-25 09:32:13,304 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:32:13,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:13,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:32:13,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:32:13,306 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 119 [2021-03-25 09:32:13,306 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 579 transitions, 16609 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:13,306 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:13,306 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 119 [2021-03-25 09:32:13,306 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:13,914 INFO L129 PetriNetUnfolder]: 590/1307 cut-off events. [2021-03-25 09:32:13,915 INFO L130 PetriNetUnfolder]: For 63208/63212 co-relation queries the response was YES. [2021-03-25 09:32:13,928 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16117 conditions, 1307 events. 590/1307 cut-off events. For 63208/63212 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 8637 event pairs, 12 based on Foata normal form. 5/1161 useless extension candidates. Maximal degree in co-relation 15881. Up to 749 conditions per place. [2021-03-25 09:32:13,934 INFO L132 encePairwiseOnDemand]: 101/119 looper letters, 424 selfloop transitions, 160 changer transitions 7/609 dead transitions. [2021-03-25 09:32:13,935 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 609 transitions, 19114 flow [2021-03-25 09:32:13,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:32:13,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:32:13,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 763 transitions. [2021-03-25 09:32:13,936 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4579831932773109 [2021-03-25 09:32:13,936 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 763 transitions. [2021-03-25 09:32:13,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 763 transitions. [2021-03-25 09:32:13,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:13,936 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 763 transitions. [2021-03-25 09:32:13,936 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 54.5) internal successors, (763), 14 states have internal predecessors, (763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:13,937 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 119.0) internal successors, (1785), 15 states have internal predecessors, (1785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:13,937 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 119.0) internal successors, (1785), 15 states have internal predecessors, (1785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:13,937 INFO L185 Difference]: Start difference. First operand has 402 places, 579 transitions, 16609 flow. Second operand 14 states and 763 transitions. [2021-03-25 09:32:13,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 609 transitions, 19114 flow [2021-03-25 09:32:14,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 410 places, 609 transitions, 18979 flow, removed 43 selfloop flow, removed 5 redundant places. [2021-03-25 09:32:14,339 INFO L241 Difference]: Finished difference. Result has 414 places, 593 transitions, 17756 flow [2021-03-25 09:32:14,339 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=16480, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=579, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=146, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=432, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=17756, PETRI_PLACES=414, PETRI_TRANSITIONS=593} [2021-03-25 09:32:14,339 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 353 predicate places. [2021-03-25 09:32:14,339 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:14,339 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 414 places, 593 transitions, 17756 flow [2021-03-25 09:32:14,340 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 414 places, 593 transitions, 17756 flow [2021-03-25 09:32:14,345 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 414 places, 593 transitions, 17756 flow [2021-03-25 09:32:14,538 INFO L129 PetriNetUnfolder]: 541/1228 cut-off events. [2021-03-25 09:32:14,538 INFO L130 PetriNetUnfolder]: For 62167/62191 co-relation queries the response was YES. [2021-03-25 09:32:14,551 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14955 conditions, 1228 events. 541/1228 cut-off events. For 62167/62191 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 8302 event pairs, 5 based on Foata normal form. 1/1078 useless extension candidates. Maximal degree in co-relation 14723. Up to 324 conditions per place. [2021-03-25 09:32:14,564 INFO L142 LiptonReduction]: Number of co-enabled transitions 1946 [2021-03-25 09:32:14,604 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:32:14,604 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:32:14,604 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 265 [2021-03-25 09:32:14,604 INFO L480 AbstractCegarLoop]: Abstraction has has 414 places, 593 transitions, 17756 flow [2021-03-25 09:32:14,604 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:14,604 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:14,604 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:32:14,604 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-03-25 09:32:14,604 INFO L428 AbstractCegarLoop]: === Iteration 111 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:32:14,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:14,604 INFO L82 PathProgramCache]: Analyzing trace with hash 850558127, now seen corresponding path program 39 times [2021-03-25 09:32:14,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:14,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558684597] [2021-03-25 09:32:14,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:14,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:14,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:14,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:14,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:14,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:32:14,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:14,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:14,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:14,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:14,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:14,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:14,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:14,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:14,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:14,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:14,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:14,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:14,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:14,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:14,679 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:32:14,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:14,691 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:32:14,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:14,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:32:14,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558684597] [2021-03-25 09:32:14,693 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:14,693 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:32:14,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624624881] [2021-03-25 09:32:14,694 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:32:14,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:14,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:32:14,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:32:14,694 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 119 [2021-03-25 09:32:14,694 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 593 transitions, 17756 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:14,694 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:14,694 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 119 [2021-03-25 09:32:14,694 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:15,279 INFO L129 PetriNetUnfolder]: 587/1308 cut-off events. [2021-03-25 09:32:15,279 INFO L130 PetriNetUnfolder]: For 66110/66114 co-relation queries the response was YES. [2021-03-25 09:32:15,293 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16486 conditions, 1308 events. 587/1308 cut-off events. For 66110/66114 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 8733 event pairs, 12 based on Foata normal form. 5/1164 useless extension candidates. Maximal degree in co-relation 16246. Up to 745 conditions per place. [2021-03-25 09:32:15,299 INFO L132 encePairwiseOnDemand]: 101/119 looper letters, 425 selfloop transitions, 164 changer transitions 9/616 dead transitions. [2021-03-25 09:32:15,299 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 616 transitions, 19802 flow [2021-03-25 09:32:15,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:32:15,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:32:15,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 710 transitions. [2021-03-25 09:32:15,300 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.45895281189398834 [2021-03-25 09:32:15,300 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 710 transitions. [2021-03-25 09:32:15,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 710 transitions. [2021-03-25 09:32:15,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:15,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 710 transitions. [2021-03-25 09:32:15,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 54.61538461538461) internal successors, (710), 13 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:15,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 119.0) internal successors, (1666), 14 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:15,301 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 119.0) internal successors, (1666), 14 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:15,301 INFO L185 Difference]: Start difference. First operand has 414 places, 593 transitions, 17756 flow. Second operand 13 states and 710 transitions. [2021-03-25 09:32:15,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 616 transitions, 19802 flow [2021-03-25 09:32:15,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 616 transitions, 19347 flow, removed 75 selfloop flow, removed 14 redundant places. [2021-03-25 09:32:15,665 INFO L241 Difference]: Finished difference. Result has 419 places, 598 transitions, 18217 flow [2021-03-25 09:32:15,665 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=17353, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=593, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=154, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=435, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=18217, PETRI_PLACES=419, PETRI_TRANSITIONS=598} [2021-03-25 09:32:15,665 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 358 predicate places. [2021-03-25 09:32:15,665 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:15,665 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 419 places, 598 transitions, 18217 flow [2021-03-25 09:32:15,665 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 419 places, 598 transitions, 18217 flow [2021-03-25 09:32:15,671 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 419 places, 598 transitions, 18217 flow [2021-03-25 09:32:15,863 INFO L129 PetriNetUnfolder]: 531/1206 cut-off events. [2021-03-25 09:32:15,863 INFO L130 PetriNetUnfolder]: For 62263/62266 co-relation queries the response was YES. [2021-03-25 09:32:15,875 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15013 conditions, 1206 events. 531/1206 cut-off events. For 62263/62266 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 8103 event pairs, 3 based on Foata normal form. 1/1065 useless extension candidates. Maximal degree in co-relation 14777. Up to 311 conditions per place. [2021-03-25 09:32:15,888 INFO L142 LiptonReduction]: Number of co-enabled transitions 1942 [2021-03-25 09:32:16,003 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:32:16,004 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:32:16,004 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 339 [2021-03-25 09:32:16,004 INFO L480 AbstractCegarLoop]: Abstraction has has 419 places, 598 transitions, 18217 flow [2021-03-25 09:32:16,004 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:16,004 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:16,004 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:32:16,004 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-03-25 09:32:16,004 INFO L428 AbstractCegarLoop]: === Iteration 112 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:32:16,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:16,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1372406495, now seen corresponding path program 40 times [2021-03-25 09:32:16,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:16,005 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741806131] [2021-03-25 09:32:16,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:16,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:16,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:16,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:16,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:16,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:32:16,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:16,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:16,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:16,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:16,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:16,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:16,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:16,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:16,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:16,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:16,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:16,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:16,063 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 09:32:16,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:32:16,076 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:32:16,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:16,094 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:32:16,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:16,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:32:16,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741806131] [2021-03-25 09:32:16,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:16,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:32:16,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046181737] [2021-03-25 09:32:16,096 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:32:16,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:16,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:32:16,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:32:16,097 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 119 [2021-03-25 09:32:16,097 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 598 transitions, 18217 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:16,097 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:16,097 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 119 [2021-03-25 09:32:16,097 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:16,737 INFO L129 PetriNetUnfolder]: 579/1285 cut-off events. [2021-03-25 09:32:16,738 INFO L130 PetriNetUnfolder]: For 67109/67121 co-relation queries the response was YES. [2021-03-25 09:32:16,751 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16472 conditions, 1285 events. 579/1285 cut-off events. For 67109/67121 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 8527 event pairs, 2 based on Foata normal form. 13/1154 useless extension candidates. Maximal degree in co-relation 16228. Up to 741 conditions per place. [2021-03-25 09:32:16,757 INFO L132 encePairwiseOnDemand]: 101/119 looper letters, 415 selfloop transitions, 176 changer transitions 3/612 dead transitions. [2021-03-25 09:32:16,757 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 612 transitions, 19729 flow [2021-03-25 09:32:16,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 09:32:16,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 09:32:16,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 862 transitions. [2021-03-25 09:32:16,758 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4527310924369748 [2021-03-25 09:32:16,758 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 862 transitions. [2021-03-25 09:32:16,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 862 transitions. [2021-03-25 09:32:16,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:16,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 862 transitions. [2021-03-25 09:32:16,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 53.875) internal successors, (862), 16 states have internal predecessors, (862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:16,760 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 119.0) internal successors, (2023), 17 states have internal predecessors, (2023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:16,760 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 119.0) internal successors, (2023), 17 states have internal predecessors, (2023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:16,760 INFO L185 Difference]: Start difference. First operand has 419 places, 598 transitions, 18217 flow. Second operand 16 states and 862 transitions. [2021-03-25 09:32:16,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 612 transitions, 19729 flow [2021-03-25 09:32:17,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 612 transitions, 19061 flow, removed 97 selfloop flow, removed 16 redundant places. [2021-03-25 09:32:17,161 INFO L241 Difference]: Finished difference. Result has 421 places, 600 transitions, 18108 flow [2021-03-25 09:32:17,162 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=17572, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=598, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=172, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=18108, PETRI_PLACES=421, PETRI_TRANSITIONS=600} [2021-03-25 09:32:17,162 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 360 predicate places. [2021-03-25 09:32:17,162 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:17,162 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 421 places, 600 transitions, 18108 flow [2021-03-25 09:32:17,162 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 421 places, 600 transitions, 18108 flow [2021-03-25 09:32:17,168 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 421 places, 600 transitions, 18108 flow [2021-03-25 09:32:17,362 INFO L129 PetriNetUnfolder]: 529/1204 cut-off events. [2021-03-25 09:32:17,362 INFO L130 PetriNetUnfolder]: For 58977/58984 co-relation queries the response was YES. [2021-03-25 09:32:17,374 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14927 conditions, 1204 events. 529/1204 cut-off events. For 58977/58984 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 8100 event pairs, 7 based on Foata normal form. 1/1064 useless extension candidates. Maximal degree in co-relation 14695. Up to 312 conditions per place. [2021-03-25 09:32:17,387 INFO L142 LiptonReduction]: Number of co-enabled transitions 1954 [2021-03-25 09:32:17,428 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:32:17,428 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:32:17,428 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 266 [2021-03-25 09:32:17,429 INFO L480 AbstractCegarLoop]: Abstraction has has 421 places, 600 transitions, 18108 flow [2021-03-25 09:32:17,429 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:17,429 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:17,429 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:32:17,429 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-03-25 09:32:17,429 INFO L428 AbstractCegarLoop]: === Iteration 113 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:32:17,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:17,429 INFO L82 PathProgramCache]: Analyzing trace with hash 782701573, now seen corresponding path program 41 times [2021-03-25 09:32:17,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:17,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410194764] [2021-03-25 09:32:17,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:17,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:17,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:17,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:17,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:17,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:32:17,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:17,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:17,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:17,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:17,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:17,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:17,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:17,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:17,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:17,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:17,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:17,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:17,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:17,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:17,513 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:32:17,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:17,517 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:32:17,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:17,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:32:17,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410194764] [2021-03-25 09:32:17,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:17,519 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:32:17,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079446522] [2021-03-25 09:32:17,519 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:32:17,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:17,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:32:17,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:32:17,520 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 119 [2021-03-25 09:32:17,520 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 600 transitions, 18108 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:17,520 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:17,520 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 119 [2021-03-25 09:32:17,520 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:18,153 INFO L129 PetriNetUnfolder]: 577/1284 cut-off events. [2021-03-25 09:32:18,153 INFO L130 PetriNetUnfolder]: For 63145/63149 co-relation queries the response was YES. [2021-03-25 09:32:18,167 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16380 conditions, 1284 events. 577/1284 cut-off events. For 63145/63149 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 8498 event pairs, 12 based on Foata normal form. 5/1148 useless extension candidates. Maximal degree in co-relation 16140. Up to 758 conditions per place. [2021-03-25 09:32:18,173 INFO L132 encePairwiseOnDemand]: 100/119 looper letters, 452 selfloop transitions, 149 changer transitions 0/619 dead transitions. [2021-03-25 09:32:18,173 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 619 transitions, 19774 flow [2021-03-25 09:32:18,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 09:32:18,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 09:32:18,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 864 transitions. [2021-03-25 09:32:18,174 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.453781512605042 [2021-03-25 09:32:18,174 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 864 transitions. [2021-03-25 09:32:18,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 864 transitions. [2021-03-25 09:32:18,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:18,175 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 864 transitions. [2021-03-25 09:32:18,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 54.0) internal successors, (864), 16 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:18,176 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 119.0) internal successors, (2023), 17 states have internal predecessors, (2023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:18,176 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 119.0) internal successors, (2023), 17 states have internal predecessors, (2023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:18,176 INFO L185 Difference]: Start difference. First operand has 421 places, 600 transitions, 18108 flow. Second operand 16 states and 864 transitions. [2021-03-25 09:32:18,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 619 transitions, 19774 flow [2021-03-25 09:32:18,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 619 transitions, 19444 flow, removed 26 selfloop flow, removed 14 redundant places. [2021-03-25 09:32:18,576 INFO L241 Difference]: Finished difference. Result has 425 places, 608 transitions, 18576 flow [2021-03-25 09:32:18,577 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=17782, PETRI_DIFFERENCE_MINUEND_PLACES=407, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=600, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=141, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=18576, PETRI_PLACES=425, PETRI_TRANSITIONS=608} [2021-03-25 09:32:18,577 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 364 predicate places. [2021-03-25 09:32:18,577 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:18,577 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 425 places, 608 transitions, 18576 flow [2021-03-25 09:32:18,577 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 425 places, 608 transitions, 18576 flow [2021-03-25 09:32:18,583 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 425 places, 608 transitions, 18576 flow [2021-03-25 09:32:18,780 INFO L129 PetriNetUnfolder]: 530/1224 cut-off events. [2021-03-25 09:32:18,781 INFO L130 PetriNetUnfolder]: For 59570/59603 co-relation queries the response was YES. [2021-03-25 09:32:18,792 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15267 conditions, 1224 events. 530/1224 cut-off events. For 59570/59603 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 8258 event pairs, 4 based on Foata normal form. 5/1086 useless extension candidates. Maximal degree in co-relation 15034. Up to 314 conditions per place. [2021-03-25 09:32:18,805 INFO L142 LiptonReduction]: Number of co-enabled transitions 1994 [2021-03-25 09:32:18,846 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:32:18,846 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:32:18,846 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 269 [2021-03-25 09:32:18,846 INFO L480 AbstractCegarLoop]: Abstraction has has 425 places, 608 transitions, 18576 flow [2021-03-25 09:32:18,846 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:18,846 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:18,846 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:32:18,846 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-03-25 09:32:18,846 INFO L428 AbstractCegarLoop]: === Iteration 114 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:32:18,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:18,847 INFO L82 PathProgramCache]: Analyzing trace with hash -891406481, now seen corresponding path program 42 times [2021-03-25 09:32:18,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:18,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230486185] [2021-03-25 09:32:18,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:18,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:18,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:18,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:18,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:18,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:32:18,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:18,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:18,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:18,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:18,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:18,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:18,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:18,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:18,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:18,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:18,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:18,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:18,894 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:32:18,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:18,906 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:32:18,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:18,919 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:32:18,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:18,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:32:18,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230486185] [2021-03-25 09:32:18,921 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:18,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:32:18,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501734237] [2021-03-25 09:32:18,921 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:32:18,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:18,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:32:18,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:32:18,922 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 119 [2021-03-25 09:32:18,922 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 608 transitions, 18576 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:18,922 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:18,922 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 119 [2021-03-25 09:32:18,922 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:19,501 INFO L129 PetriNetUnfolder]: 582/1300 cut-off events. [2021-03-25 09:32:19,501 INFO L130 PetriNetUnfolder]: For 64258/64268 co-relation queries the response was YES. [2021-03-25 09:32:19,514 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16625 conditions, 1300 events. 582/1300 cut-off events. For 64258/64268 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 8675 event pairs, 10 based on Foata normal form. 11/1166 useless extension candidates. Maximal degree in co-relation 16384. Up to 813 conditions per place. [2021-03-25 09:32:19,519 INFO L132 encePairwiseOnDemand]: 101/119 looper letters, 548 selfloop transitions, 54 changer transitions 3/623 dead transitions. [2021-03-25 09:32:19,519 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 623 transitions, 20184 flow [2021-03-25 09:32:19,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:32:19,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:32:19,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 594 transitions. [2021-03-25 09:32:19,520 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.453781512605042 [2021-03-25 09:32:19,520 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 594 transitions. [2021-03-25 09:32:19,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 594 transitions. [2021-03-25 09:32:19,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:19,520 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 594 transitions. [2021-03-25 09:32:19,521 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 54.0) internal successors, (594), 11 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:19,521 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 119.0) internal successors, (1428), 12 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:19,521 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 119.0) internal successors, (1428), 12 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:19,521 INFO L185 Difference]: Start difference. First operand has 425 places, 608 transitions, 18576 flow. Second operand 11 states and 594 transitions. [2021-03-25 09:32:19,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 623 transitions, 20184 flow [2021-03-25 09:32:19,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 623 transitions, 19793 flow, removed 72 selfloop flow, removed 10 redundant places. [2021-03-25 09:32:19,947 INFO L241 Difference]: Finished difference. Result has 428 places, 610 transitions, 18469 flow [2021-03-25 09:32:19,947 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=18185, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=608, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=555, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=18469, PETRI_PLACES=428, PETRI_TRANSITIONS=610} [2021-03-25 09:32:19,947 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 367 predicate places. [2021-03-25 09:32:19,947 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:19,947 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 428 places, 610 transitions, 18469 flow [2021-03-25 09:32:19,947 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 428 places, 610 transitions, 18469 flow [2021-03-25 09:32:19,953 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 426 places, 610 transitions, 18469 flow [2021-03-25 09:32:20,158 INFO L129 PetriNetUnfolder]: 536/1236 cut-off events. [2021-03-25 09:32:20,158 INFO L130 PetriNetUnfolder]: For 61869/61872 co-relation queries the response was YES. [2021-03-25 09:32:20,171 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15142 conditions, 1236 events. 536/1236 cut-off events. For 61869/61872 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 8436 event pairs, 4 based on Foata normal form. 1/1090 useless extension candidates. Maximal degree in co-relation 14970. Up to 310 conditions per place. [2021-03-25 09:32:20,186 INFO L142 LiptonReduction]: Number of co-enabled transitions 2012 [2021-03-25 09:32:20,227 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:32:20,227 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:32:20,227 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 280 [2021-03-25 09:32:20,227 INFO L480 AbstractCegarLoop]: Abstraction has has 426 places, 610 transitions, 18469 flow [2021-03-25 09:32:20,227 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:20,227 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:20,227 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:32:20,227 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-03-25 09:32:20,227 INFO L428 AbstractCegarLoop]: === Iteration 115 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:32:20,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:20,228 INFO L82 PathProgramCache]: Analyzing trace with hash -1195257097, now seen corresponding path program 43 times [2021-03-25 09:32:20,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:20,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154565725] [2021-03-25 09:32:20,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:20,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:20,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:20,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:20,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:20,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:32:20,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:20,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:20,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:20,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:20,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:20,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:20,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:20,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:32:20,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:20,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:20,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:20,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:20,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:20,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:20,298 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:32:20,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:20,302 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:32:20,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:20,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:32:20,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154565725] [2021-03-25 09:32:20,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:20,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:32:20,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455270447] [2021-03-25 09:32:20,306 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:32:20,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:20,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:32:20,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:32:20,307 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 119 [2021-03-25 09:32:20,307 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 610 transitions, 18469 flow. Second operand has 9 states, 9 states have (on average 49.44444444444444) internal successors, (445), 9 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:20,307 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:20,307 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 119 [2021-03-25 09:32:20,307 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:20,845 INFO L129 PetriNetUnfolder]: 585/1312 cut-off events. [2021-03-25 09:32:20,845 INFO L130 PetriNetUnfolder]: For 65143/65147 co-relation queries the response was YES. [2021-03-25 09:32:20,860 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16629 conditions, 1312 events. 585/1312 cut-off events. For 65143/65147 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 8771 event pairs, 10 based on Foata normal form. 5/1170 useless extension candidates. Maximal degree in co-relation 16455. Up to 775 conditions per place. [2021-03-25 09:32:20,866 INFO L132 encePairwiseOnDemand]: 101/119 looper letters, 477 selfloop transitions, 128 changer transitions 0/623 dead transitions. [2021-03-25 09:32:20,866 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 623 transitions, 19929 flow [2021-03-25 09:32:20,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:32:20,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:32:20,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 549 transitions. [2021-03-25 09:32:20,867 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4613445378151261 [2021-03-25 09:32:20,867 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 549 transitions. [2021-03-25 09:32:20,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 549 transitions. [2021-03-25 09:32:20,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:20,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 549 transitions. [2021-03-25 09:32:20,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 54.9) internal successors, (549), 10 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:20,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 119.0) internal successors, (1309), 11 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:20,868 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 119.0) internal successors, (1309), 11 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:20,868 INFO L185 Difference]: Start difference. First operand has 426 places, 610 transitions, 18469 flow. Second operand 10 states and 549 transitions. [2021-03-25 09:32:20,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 623 transitions, 19929 flow [2021-03-25 09:32:21,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 430 places, 623 transitions, 19770 flow, removed 61 selfloop flow, removed 5 redundant places. [2021-03-25 09:32:21,327 INFO L241 Difference]: Finished difference. Result has 433 places, 616 transitions, 18876 flow [2021-03-25 09:32:21,327 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=18310, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=610, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=124, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=484, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=18876, PETRI_PLACES=433, PETRI_TRANSITIONS=616} [2021-03-25 09:32:21,328 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 372 predicate places. [2021-03-25 09:32:21,328 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:21,328 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 433 places, 616 transitions, 18876 flow [2021-03-25 09:32:21,328 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 433 places, 616 transitions, 18876 flow [2021-03-25 09:32:21,334 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 433 places, 616 transitions, 18876 flow [2021-03-25 09:32:21,548 INFO L129 PetriNetUnfolder]: 537/1241 cut-off events. [2021-03-25 09:32:21,548 INFO L130 PetriNetUnfolder]: For 63716/63719 co-relation queries the response was YES. [2021-03-25 09:32:21,562 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15393 conditions, 1241 events. 537/1241 cut-off events. For 63716/63719 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 8511 event pairs, 2 based on Foata normal form. 1/1096 useless extension candidates. Maximal degree in co-relation 15154. Up to 315 conditions per place. [2021-03-25 09:32:21,577 INFO L142 LiptonReduction]: Number of co-enabled transitions 2048 [2021-03-25 09:32:21,692 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 09:32:21,692 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:32:21,692 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 364 [2021-03-25 09:32:21,692 INFO L480 AbstractCegarLoop]: Abstraction has has 433 places, 616 transitions, 18935 flow [2021-03-25 09:32:21,692 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 49.44444444444444) internal successors, (445), 9 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:21,692 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:21,692 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:32:21,693 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-03-25 09:32:21,693 INFO L428 AbstractCegarLoop]: === Iteration 116 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:32:21,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:21,693 INFO L82 PathProgramCache]: Analyzing trace with hash -207347999, now seen corresponding path program 44 times [2021-03-25 09:32:21,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:21,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878806293] [2021-03-25 09:32:21,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:21,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:21,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:21,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:21,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:21,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:32:21,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:21,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:21,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:21,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:21,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:21,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:21,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:21,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:21,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:21,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:32:21,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:21,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:21,765 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:32:21,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:32:21,767 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:32:21,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:21,780 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:32:21,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:21,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:32:21,783 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878806293] [2021-03-25 09:32:21,783 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:21,783 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:32:21,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778917001] [2021-03-25 09:32:21,783 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:32:21,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:21,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:32:21,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:32:21,784 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 120 [2021-03-25 09:32:21,784 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 616 transitions, 18935 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:21,784 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:21,784 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 120 [2021-03-25 09:32:21,784 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:22,477 INFO L129 PetriNetUnfolder]: 599/1346 cut-off events. [2021-03-25 09:32:22,477 INFO L130 PetriNetUnfolder]: For 67689/67695 co-relation queries the response was YES. [2021-03-25 09:32:22,493 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17147 conditions, 1346 events. 599/1346 cut-off events. For 67689/67695 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 9073 event pairs, 1 based on Foata normal form. 7/1197 useless extension candidates. Maximal degree in co-relation 16900. Up to 735 conditions per place. [2021-03-25 09:32:22,499 INFO L132 encePairwiseOnDemand]: 102/120 looper letters, 409 selfloop transitions, 210 changer transitions 0/637 dead transitions. [2021-03-25 09:32:22,499 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 637 transitions, 20829 flow [2021-03-25 09:32:22,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:32:22,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:32:22,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 659 transitions. [2021-03-25 09:32:22,500 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4576388888888889 [2021-03-25 09:32:22,500 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 659 transitions. [2021-03-25 09:32:22,500 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 659 transitions. [2021-03-25 09:32:22,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:22,500 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 659 transitions. [2021-03-25 09:32:22,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 54.916666666666664) internal successors, (659), 12 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:22,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 120.0) internal successors, (1560), 13 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:22,501 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 120.0) internal successors, (1560), 13 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:22,501 INFO L185 Difference]: Start difference. First operand has 433 places, 616 transitions, 18935 flow. Second operand 12 states and 659 transitions. [2021-03-25 09:32:22,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 444 places, 637 transitions, 20829 flow [2021-03-25 09:32:23,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 637 transitions, 20437 flow, removed 104 selfloop flow, removed 5 redundant places. [2021-03-25 09:32:23,052 INFO L241 Difference]: Finished difference. Result has 441 places, 628 transitions, 19677 flow [2021-03-25 09:32:23,053 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=18551, PETRI_DIFFERENCE_MINUEND_PLACES=428, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=616, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=200, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=19677, PETRI_PLACES=441, PETRI_TRANSITIONS=628} [2021-03-25 09:32:23,053 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 380 predicate places. [2021-03-25 09:32:23,053 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:23,053 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 441 places, 628 transitions, 19677 flow [2021-03-25 09:32:23,053 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 441 places, 628 transitions, 19677 flow [2021-03-25 09:32:23,059 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 441 places, 628 transitions, 19677 flow [2021-03-25 09:32:23,281 INFO L129 PetriNetUnfolder]: 547/1268 cut-off events. [2021-03-25 09:32:23,281 INFO L130 PetriNetUnfolder]: For 65597/65644 co-relation queries the response was YES. [2021-03-25 09:32:23,295 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15923 conditions, 1268 events. 547/1268 cut-off events. For 65597/65644 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 8743 event pairs, 4 based on Foata normal form. 1/1118 useless extension candidates. Maximal degree in co-relation 15681. Up to 316 conditions per place. [2021-03-25 09:32:23,312 INFO L142 LiptonReduction]: Number of co-enabled transitions 2108 [2021-03-25 09:32:23,355 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:32:23,356 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:32:23,356 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 303 [2021-03-25 09:32:23,356 INFO L480 AbstractCegarLoop]: Abstraction has has 441 places, 628 transitions, 19677 flow [2021-03-25 09:32:23,356 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:23,356 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:23,356 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:32:23,356 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-03-25 09:32:23,356 INFO L428 AbstractCegarLoop]: === Iteration 117 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:32:23,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:23,356 INFO L82 PathProgramCache]: Analyzing trace with hash -177371409, now seen corresponding path program 45 times [2021-03-25 09:32:23,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:23,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721344845] [2021-03-25 09:32:23,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:23,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:23,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:23,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:23,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:23,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:32:23,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:23,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:23,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:23,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:23,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:23,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:23,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:23,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:23,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:23,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:23,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:23,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:23,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:23,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:23,427 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:32:23,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:23,430 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:32:23,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:23,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:32:23,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721344845] [2021-03-25 09:32:23,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:23,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:32:23,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360473831] [2021-03-25 09:32:23,433 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:32:23,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:23,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:32:23,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:32:23,434 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 120 [2021-03-25 09:32:23,434 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 628 transitions, 19677 flow. Second operand has 9 states, 9 states have (on average 49.44444444444444) internal successors, (445), 9 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:23,434 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:23,434 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 120 [2021-03-25 09:32:23,434 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:23,987 INFO L129 PetriNetUnfolder]: 603/1361 cut-off events. [2021-03-25 09:32:23,987 INFO L130 PetriNetUnfolder]: For 69372/69382 co-relation queries the response was YES. [2021-03-25 09:32:24,004 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17405 conditions, 1361 events. 603/1361 cut-off events. For 69372/69382 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 9231 event pairs, 9 based on Foata normal form. 11/1212 useless extension candidates. Maximal degree in co-relation 17155. Up to 855 conditions per place. [2021-03-25 09:32:24,010 INFO L132 encePairwiseOnDemand]: 102/120 looper letters, 576 selfloop transitions, 45 changer transitions 0/639 dead transitions. [2021-03-25 09:32:24,010 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 639 transitions, 21166 flow [2021-03-25 09:32:24,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:32:24,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:32:24,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 540 transitions. [2021-03-25 09:32:24,011 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.45 [2021-03-25 09:32:24,011 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 540 transitions. [2021-03-25 09:32:24,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 540 transitions. [2021-03-25 09:32:24,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:24,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 540 transitions. [2021-03-25 09:32:24,012 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 54.0) internal successors, (540), 10 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:24,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 120.0) internal successors, (1320), 11 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:24,012 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 120.0) internal successors, (1320), 11 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:24,012 INFO L185 Difference]: Start difference. First operand has 441 places, 628 transitions, 19677 flow. Second operand 10 states and 540 transitions. [2021-03-25 09:32:24,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 450 places, 639 transitions, 21166 flow [2021-03-25 09:32:24,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 448 places, 639 transitions, 20920 flow, removed 107 selfloop flow, removed 2 redundant places. [2021-03-25 09:32:24,554 INFO L241 Difference]: Finished difference. Result has 451 places, 632 transitions, 19742 flow [2021-03-25 09:32:24,554 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=19431, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=628, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=585, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=19742, PETRI_PLACES=451, PETRI_TRANSITIONS=632} [2021-03-25 09:32:24,554 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 390 predicate places. [2021-03-25 09:32:24,554 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:24,554 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 451 places, 632 transitions, 19742 flow [2021-03-25 09:32:24,554 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 451 places, 632 transitions, 19742 flow [2021-03-25 09:32:24,560 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 451 places, 632 transitions, 19742 flow [2021-03-25 09:32:24,789 INFO L129 PetriNetUnfolder]: 548/1279 cut-off events. [2021-03-25 09:32:24,789 INFO L130 PetriNetUnfolder]: For 67265/67268 co-relation queries the response was YES. [2021-03-25 09:32:24,804 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15987 conditions, 1279 events. 548/1279 cut-off events. For 67265/67268 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 8904 event pairs, 4 based on Foata normal form. 1/1128 useless extension candidates. Maximal degree in co-relation 15741. Up to 313 conditions per place. [2021-03-25 09:32:24,821 INFO L142 LiptonReduction]: Number of co-enabled transitions 2136 [2021-03-25 09:32:24,946 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 09:32:24,947 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:32:24,947 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 393 [2021-03-25 09:32:24,947 INFO L480 AbstractCegarLoop]: Abstraction has has 451 places, 632 transitions, 19803 flow [2021-03-25 09:32:24,947 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 49.44444444444444) internal successors, (445), 9 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:24,947 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:24,947 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:32:24,947 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-03-25 09:32:24,947 INFO L428 AbstractCegarLoop]: === Iteration 118 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:32:24,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:24,947 INFO L82 PathProgramCache]: Analyzing trace with hash 2097258847, now seen corresponding path program 46 times [2021-03-25 09:32:24,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:24,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127101838] [2021-03-25 09:32:24,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:24,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:24,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:24,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:24,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:24,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:32:24,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:24,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:24,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:24,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:24,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:24,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:24,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:24,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:24,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:24,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:24,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:24,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:25,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:25,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:25,027 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:32:25,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:25,032 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:32:25,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:25,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:32:25,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127101838] [2021-03-25 09:32:25,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:25,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:32:25,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452906352] [2021-03-25 09:32:25,034 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:32:25,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:25,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:32:25,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:32:25,035 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 121 [2021-03-25 09:32:25,035 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 632 transitions, 19803 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:25,035 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:25,035 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 121 [2021-03-25 09:32:25,035 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:25,738 INFO L129 PetriNetUnfolder]: 604/1370 cut-off events. [2021-03-25 09:32:25,738 INFO L130 PetriNetUnfolder]: For 71207/71217 co-relation queries the response was YES. [2021-03-25 09:32:25,756 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17487 conditions, 1370 events. 604/1370 cut-off events. For 71207/71217 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 9368 event pairs, 9 based on Foata normal form. 11/1219 useless extension candidates. Maximal degree in co-relation 17233. Up to 848 conditions per place. [2021-03-25 09:32:25,763 INFO L132 encePairwiseOnDemand]: 103/121 looper letters, 565 selfloop transitions, 60 changer transitions 0/643 dead transitions. [2021-03-25 09:32:25,763 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 643 transitions, 21242 flow [2021-03-25 09:32:25,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:32:25,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:32:25,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 697 transitions. [2021-03-25 09:32:25,764 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4431023521932613 [2021-03-25 09:32:25,764 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 697 transitions. [2021-03-25 09:32:25,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 697 transitions. [2021-03-25 09:32:25,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:25,764 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 697 transitions. [2021-03-25 09:32:25,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 53.61538461538461) internal successors, (697), 13 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:25,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 121.0) internal successors, (1694), 14 states have internal predecessors, (1694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:25,765 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 121.0) internal successors, (1694), 14 states have internal predecessors, (1694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:25,765 INFO L185 Difference]: Start difference. First operand has 451 places, 632 transitions, 19803 flow. Second operand 13 states and 697 transitions. [2021-03-25 09:32:25,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 643 transitions, 21242 flow [2021-03-25 09:32:26,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 456 places, 643 transitions, 20925 flow, removed 113 selfloop flow, removed 7 redundant places. [2021-03-25 09:32:26,359 INFO L241 Difference]: Finished difference. Result has 459 places, 634 transitions, 19767 flow [2021-03-25 09:32:26,359 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=19498, PETRI_DIFFERENCE_MINUEND_PLACES=444, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=632, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=572, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=19767, PETRI_PLACES=459, PETRI_TRANSITIONS=634} [2021-03-25 09:32:26,359 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 398 predicate places. [2021-03-25 09:32:26,359 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:26,359 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 459 places, 634 transitions, 19767 flow [2021-03-25 09:32:26,360 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 459 places, 634 transitions, 19767 flow [2021-03-25 09:32:26,366 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 459 places, 634 transitions, 19767 flow [2021-03-25 09:32:26,631 INFO L129 PetriNetUnfolder]: 550/1290 cut-off events. [2021-03-25 09:32:26,631 INFO L130 PetriNetUnfolder]: For 68199/68202 co-relation queries the response was YES. [2021-03-25 09:32:26,647 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16022 conditions, 1290 events. 550/1290 cut-off events. For 68199/68202 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 9064 event pairs, 4 based on Foata normal form. 1/1136 useless extension candidates. Maximal degree in co-relation 15773. Up to 309 conditions per place. [2021-03-25 09:32:26,666 INFO L142 LiptonReduction]: Number of co-enabled transitions 2156 [2021-03-25 09:32:26,792 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:32:26,792 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:32:26,792 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 433 [2021-03-25 09:32:26,792 INFO L480 AbstractCegarLoop]: Abstraction has has 459 places, 634 transitions, 19775 flow [2021-03-25 09:32:26,792 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:26,792 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:26,792 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:32:26,792 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-03-25 09:32:26,792 INFO L428 AbstractCegarLoop]: === Iteration 119 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:32:26,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:26,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1531315329, now seen corresponding path program 47 times [2021-03-25 09:32:26,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:26,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552892179] [2021-03-25 09:32:26,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:26,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:26,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:26,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:26,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:26,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:32:26,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:26,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:26,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:26,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:26,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:26,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:26,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:26,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:26,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:26,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:26,833 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:32:26,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:32:26,835 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:32:26,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:32:26,846 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:32:26,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:26,858 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:32:26,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:26,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:32:26,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552892179] [2021-03-25 09:32:26,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:26,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:32:26,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21964667] [2021-03-25 09:32:26,861 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:32:26,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:26,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:32:26,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:32:26,862 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 122 [2021-03-25 09:32:26,862 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 634 transitions, 19775 flow. Second operand has 9 states, 9 states have (on average 49.44444444444444) internal successors, (445), 9 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:26,862 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:26,862 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 122 [2021-03-25 09:32:26,862 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:27,476 INFO L129 PetriNetUnfolder]: 608/1385 cut-off events. [2021-03-25 09:32:27,477 INFO L130 PetriNetUnfolder]: For 70653/70657 co-relation queries the response was YES. [2021-03-25 09:32:27,494 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17470 conditions, 1385 events. 608/1385 cut-off events. For 70653/70657 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 9502 event pairs, 9 based on Foata normal form. 5/1223 useless extension candidates. Maximal degree in co-relation 17213. Up to 865 conditions per place. [2021-03-25 09:32:27,501 INFO L132 encePairwiseOnDemand]: 104/122 looper letters, 584 selfloop transitions, 35 changer transitions 4/641 dead transitions. [2021-03-25 09:32:27,501 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 641 transitions, 21092 flow [2021-03-25 09:32:27,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:32:27,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:32:27,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 535 transitions. [2021-03-25 09:32:27,502 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4385245901639344 [2021-03-25 09:32:27,502 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 535 transitions. [2021-03-25 09:32:27,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 535 transitions. [2021-03-25 09:32:27,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:27,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 535 transitions. [2021-03-25 09:32:27,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 53.5) internal successors, (535), 10 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:27,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 122.0) internal successors, (1342), 11 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:27,503 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 122.0) internal successors, (1342), 11 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:27,503 INFO L185 Difference]: Start difference. First operand has 459 places, 634 transitions, 19775 flow. Second operand 10 states and 535 transitions. [2021-03-25 09:32:27,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 641 transitions, 21092 flow [2021-03-25 09:32:28,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 641 transitions, 20938 flow, removed 27 selfloop flow, removed 10 redundant places. [2021-03-25 09:32:28,098 INFO L241 Difference]: Finished difference. Result has 461 places, 632 transitions, 19666 flow [2021-03-25 09:32:28,099 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=19621, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=634, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=599, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=19666, PETRI_PLACES=461, PETRI_TRANSITIONS=632} [2021-03-25 09:32:28,099 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 400 predicate places. [2021-03-25 09:32:28,099 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:28,099 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 461 places, 632 transitions, 19666 flow [2021-03-25 09:32:28,099 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 461 places, 632 transitions, 19666 flow [2021-03-25 09:32:28,105 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 458 places, 632 transitions, 19666 flow [2021-03-25 09:32:28,336 INFO L129 PetriNetUnfolder]: 542/1270 cut-off events. [2021-03-25 09:32:28,336 INFO L130 PetriNetUnfolder]: For 68568/68580 co-relation queries the response was YES. [2021-03-25 09:32:28,352 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15726 conditions, 1270 events. 542/1270 cut-off events. For 68568/68580 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 8937 event pairs, 4 based on Foata normal form. 2/1118 useless extension candidates. Maximal degree in co-relation 15534. Up to 308 conditions per place. [2021-03-25 09:32:28,368 INFO L142 LiptonReduction]: Number of co-enabled transitions 2156 [2021-03-25 09:32:28,414 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:32:28,414 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:32:28,414 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 315 [2021-03-25 09:32:28,415 INFO L480 AbstractCegarLoop]: Abstraction has has 458 places, 632 transitions, 19666 flow [2021-03-25 09:32:28,415 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 49.44444444444444) internal successors, (445), 9 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:28,415 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:28,415 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:32:28,415 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-03-25 09:32:28,415 INFO L428 AbstractCegarLoop]: === Iteration 120 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:32:28,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:28,415 INFO L82 PathProgramCache]: Analyzing trace with hash 113332563, now seen corresponding path program 1 times [2021-03-25 09:32:28,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:28,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360440862] [2021-03-25 09:32:28,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:28,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:28,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:28,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:28,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:28,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:32:28,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:28,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:28,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:28,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:32:28,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:28,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:28,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:28,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:28,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:28,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:28,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:28,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:28,489 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:32:28,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:28,502 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:32:28,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:28,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:32:28,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360440862] [2021-03-25 09:32:28,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:28,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:32:28,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199753249] [2021-03-25 09:32:28,505 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:32:28,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:28,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:32:28,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:32:28,505 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 122 [2021-03-25 09:32:28,506 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 632 transitions, 19666 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:28,506 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:28,506 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 122 [2021-03-25 09:32:28,506 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:29,129 INFO L129 PetriNetUnfolder]: 609/1390 cut-off events. [2021-03-25 09:32:29,129 INFO L130 PetriNetUnfolder]: For 72545/72551 co-relation queries the response was YES. [2021-03-25 09:32:29,146 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17404 conditions, 1390 events. 609/1390 cut-off events. For 72545/72551 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 9620 event pairs, 2 based on Foata normal form. 7/1228 useless extension candidates. Maximal degree in co-relation 17210. Up to 854 conditions per place. [2021-03-25 09:32:29,153 INFO L132 encePairwiseOnDemand]: 102/122 looper letters, 576 selfloop transitions, 38 changer transitions 7/639 dead transitions. [2021-03-25 09:32:29,153 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 470 places, 639 transitions, 20961 flow [2021-03-25 09:32:29,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:32:29,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:32:29,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 686 transitions. [2021-03-25 09:32:29,154 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43253467843631777 [2021-03-25 09:32:29,154 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 686 transitions. [2021-03-25 09:32:29,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 686 transitions. [2021-03-25 09:32:29,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:29,154 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 686 transitions. [2021-03-25 09:32:29,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 52.76923076923077) internal successors, (686), 13 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:29,155 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 122.0) internal successors, (1708), 14 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:29,155 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 122.0) internal successors, (1708), 14 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:29,155 INFO L185 Difference]: Start difference. First operand has 458 places, 632 transitions, 19666 flow. Second operand 13 states and 686 transitions. [2021-03-25 09:32:29,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 470 places, 639 transitions, 20961 flow [2021-03-25 09:32:29,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 639 transitions, 20871 flow, removed 3 selfloop flow, removed 9 redundant places. [2021-03-25 09:32:29,716 INFO L241 Difference]: Finished difference. Result has 463 places, 626 transitions, 19573 flow [2021-03-25 09:32:29,716 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=19578, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=632, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=594, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=19573, PETRI_PLACES=463, PETRI_TRANSITIONS=626} [2021-03-25 09:32:29,716 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 402 predicate places. [2021-03-25 09:32:29,716 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:29,716 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 463 places, 626 transitions, 19573 flow [2021-03-25 09:32:29,717 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 463 places, 626 transitions, 19573 flow [2021-03-25 09:32:29,722 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 457 places, 626 transitions, 19573 flow [2021-03-25 09:32:29,952 INFO L129 PetriNetUnfolder]: 544/1268 cut-off events. [2021-03-25 09:32:29,952 INFO L130 PetriNetUnfolder]: For 67735/67738 co-relation queries the response was YES. [2021-03-25 09:32:30,032 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15896 conditions, 1268 events. 544/1268 cut-off events. For 67735/67738 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 8813 event pairs, 4 based on Foata normal form. 1/1118 useless extension candidates. Maximal degree in co-relation 15714. Up to 309 conditions per place. [2021-03-25 09:32:30,048 INFO L142 LiptonReduction]: Number of co-enabled transitions 2124 [2021-03-25 09:32:30,091 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:32:30,091 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:32:30,091 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 375 [2021-03-25 09:32:30,091 INFO L480 AbstractCegarLoop]: Abstraction has has 457 places, 626 transitions, 19573 flow [2021-03-25 09:32:30,091 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:30,091 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:30,091 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:32:30,091 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-03-25 09:32:30,091 INFO L428 AbstractCegarLoop]: === Iteration 121 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:32:30,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:30,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1761783333, now seen corresponding path program 48 times [2021-03-25 09:32:30,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:30,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807614553] [2021-03-25 09:32:30,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:30,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:30,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:30,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:30,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:30,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:32:30,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:30,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:30,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:30,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:30,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:30,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:30,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:30,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:32:30,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:30,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:30,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:30,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:30,142 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:32:30,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:30,154 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:32:30,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:30,167 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:32:30,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:30,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:32:30,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807614553] [2021-03-25 09:32:30,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:30,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:32:30,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580089841] [2021-03-25 09:32:30,169 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:32:30,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:30,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:32:30,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:32:30,170 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 122 [2021-03-25 09:32:30,170 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 626 transitions, 19573 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:30,170 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:30,170 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 122 [2021-03-25 09:32:30,170 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:30,796 INFO L129 PetriNetUnfolder]: 603/1368 cut-off events. [2021-03-25 09:32:30,796 INFO L130 PetriNetUnfolder]: For 72460/72464 co-relation queries the response was YES. [2021-03-25 09:32:30,812 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17327 conditions, 1368 events. 603/1368 cut-off events. For 72460/72464 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 9325 event pairs, 2 based on Foata normal form. 5/1209 useless extension candidates. Maximal degree in co-relation 17143. Up to 807 conditions per place. [2021-03-25 09:32:30,819 INFO L132 encePairwiseOnDemand]: 103/122 looper letters, 553 selfloop transitions, 68 changer transitions 0/639 dead transitions. [2021-03-25 09:32:30,819 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 467 places, 639 transitions, 20955 flow [2021-03-25 09:32:30,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:32:30,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:32:30,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 601 transitions. [2021-03-25 09:32:30,820 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44783904619970194 [2021-03-25 09:32:30,820 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 601 transitions. [2021-03-25 09:32:30,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 601 transitions. [2021-03-25 09:32:30,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:30,820 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 601 transitions. [2021-03-25 09:32:30,821 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 54.63636363636363) internal successors, (601), 11 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:30,821 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 122.0) internal successors, (1464), 12 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:30,821 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 122.0) internal successors, (1464), 12 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:30,821 INFO L185 Difference]: Start difference. First operand has 457 places, 626 transitions, 19573 flow. Second operand 11 states and 601 transitions. [2021-03-25 09:32:30,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 467 places, 639 transitions, 20955 flow [2021-03-25 09:32:31,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 639 transitions, 20821 flow, removed 4 selfloop flow, removed 14 redundant places. [2021-03-25 09:32:31,380 INFO L241 Difference]: Finished difference. Result has 455 places, 628 transitions, 19681 flow [2021-03-25 09:32:31,380 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=19439, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=626, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=559, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=19681, PETRI_PLACES=455, PETRI_TRANSITIONS=628} [2021-03-25 09:32:31,381 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 394 predicate places. [2021-03-25 09:32:31,381 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:31,381 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 455 places, 628 transitions, 19681 flow [2021-03-25 09:32:31,381 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 455 places, 628 transitions, 19681 flow [2021-03-25 09:32:31,387 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 455 places, 628 transitions, 19681 flow [2021-03-25 09:32:31,610 INFO L129 PetriNetUnfolder]: 540/1259 cut-off events. [2021-03-25 09:32:31,610 INFO L130 PetriNetUnfolder]: For 68452/68464 co-relation queries the response was YES. [2021-03-25 09:32:31,627 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15934 conditions, 1259 events. 540/1259 cut-off events. For 68452/68464 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 8757 event pairs, 3 based on Foata normal form. 2/1113 useless extension candidates. Maximal degree in co-relation 15734. Up to 309 conditions per place. [2021-03-25 09:32:31,644 INFO L142 LiptonReduction]: Number of co-enabled transitions 2144 [2021-03-25 09:32:31,768 INFO L154 LiptonReduction]: Checked pairs total: 5 [2021-03-25 09:32:31,768 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:32:31,768 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 387 [2021-03-25 09:32:31,768 INFO L480 AbstractCegarLoop]: Abstraction has has 454 places, 627 transitions, 19677 flow [2021-03-25 09:32:31,769 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:31,769 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:31,769 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:32:31,769 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2021-03-25 09:32:31,769 INFO L428 AbstractCegarLoop]: === Iteration 122 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:32:31,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:31,769 INFO L82 PathProgramCache]: Analyzing trace with hash -388311459, now seen corresponding path program 49 times [2021-03-25 09:32:31,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:31,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184744090] [2021-03-25 09:32:31,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:31,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:31,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:31,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:31,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:31,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:32:31,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:31,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:31,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:31,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:31,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:31,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:31,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:31,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:32:31,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:31,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:31,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:31,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:31,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:31,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:31,830 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:32:31,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:31,843 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:32:31,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:31,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:32:31,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184744090] [2021-03-25 09:32:31,846 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:31,846 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:32:31,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695367039] [2021-03-25 09:32:31,846 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:32:31,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:31,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:32:31,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:32:31,846 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 123 [2021-03-25 09:32:31,847 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 627 transitions, 19677 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:31,847 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:31,847 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 123 [2021-03-25 09:32:31,847 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:32,493 INFO L129 PetriNetUnfolder]: 601/1365 cut-off events. [2021-03-25 09:32:32,494 INFO L130 PetriNetUnfolder]: For 69951/69961 co-relation queries the response was YES. [2021-03-25 09:32:32,510 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17387 conditions, 1365 events. 601/1365 cut-off events. For 69951/69961 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 9260 event pairs, 1 based on Foata normal form. 11/1213 useless extension candidates. Maximal degree in co-relation 17151. Up to 844 conditions per place. [2021-03-25 09:32:32,516 INFO L132 encePairwiseOnDemand]: 104/123 looper letters, 573 selfloop transitions, 40 changer transitions 8/639 dead transitions. [2021-03-25 09:32:32,517 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 639 transitions, 21003 flow [2021-03-25 09:32:32,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:32:32,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:32:32,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 643 transitions. [2021-03-25 09:32:32,518 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4356368563685637 [2021-03-25 09:32:32,518 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 643 transitions. [2021-03-25 09:32:32,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 643 transitions. [2021-03-25 09:32:32,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:32,518 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 643 transitions. [2021-03-25 09:32:32,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 53.583333333333336) internal successors, (643), 12 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:32,519 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 123.0) internal successors, (1599), 13 states have internal predecessors, (1599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:32,519 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 123.0) internal successors, (1599), 13 states have internal predecessors, (1599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:32,519 INFO L185 Difference]: Start difference. First operand has 454 places, 627 transitions, 19677 flow. Second operand 12 states and 643 transitions. [2021-03-25 09:32:32,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 639 transitions, 21003 flow [2021-03-25 09:32:33,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 639 transitions, 20814 flow, removed 25 selfloop flow, removed 8 redundant places. [2021-03-25 09:32:33,081 INFO L241 Difference]: Finished difference. Result has 460 places, 622 transitions, 19505 flow [2021-03-25 09:32:33,082 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=19494, PETRI_DIFFERENCE_MINUEND_PLACES=446, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=627, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=587, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=19505, PETRI_PLACES=460, PETRI_TRANSITIONS=622} [2021-03-25 09:32:33,082 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 399 predicate places. [2021-03-25 09:32:33,082 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:33,082 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 460 places, 622 transitions, 19505 flow [2021-03-25 09:32:33,082 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 460 places, 622 transitions, 19505 flow [2021-03-25 09:32:33,088 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 453 places, 622 transitions, 19505 flow [2021-03-25 09:32:33,313 INFO L129 PetriNetUnfolder]: 534/1233 cut-off events. [2021-03-25 09:32:33,313 INFO L130 PetriNetUnfolder]: For 67737/67744 co-relation queries the response was YES. [2021-03-25 09:32:33,328 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15949 conditions, 1233 events. 534/1233 cut-off events. For 67737/67744 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 8460 event pairs, 3 based on Foata normal form. 1/1092 useless extension candidates. Maximal degree in co-relation 15770. Up to 312 conditions per place. [2021-03-25 09:32:33,344 INFO L142 LiptonReduction]: Number of co-enabled transitions 2074 [2021-03-25 09:32:33,389 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:32:33,389 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:32:33,389 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 307 [2021-03-25 09:32:33,389 INFO L480 AbstractCegarLoop]: Abstraction has has 453 places, 622 transitions, 19505 flow [2021-03-25 09:32:33,389 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:33,389 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:33,389 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:32:33,390 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-03-25 09:32:33,390 INFO L428 AbstractCegarLoop]: === Iteration 123 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:32:33,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:33,390 INFO L82 PathProgramCache]: Analyzing trace with hash 662391717, now seen corresponding path program 50 times [2021-03-25 09:32:33,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:33,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107848550] [2021-03-25 09:32:33,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:33,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:33,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:33,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:33,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:33,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:32:33,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:33,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:33,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:33,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:33,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:33,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:33,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:33,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:32:33,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:33,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:33,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:33,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:33,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:33,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:33,453 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:32:33,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:33,467 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:32:33,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:33,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:32:33,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107848550] [2021-03-25 09:32:33,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:33,469 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:32:33,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811331324] [2021-03-25 09:32:33,469 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:32:33,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:33,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:32:33,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:32:33,470 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 123 [2021-03-25 09:32:33,470 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 622 transitions, 19505 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:33,470 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:33,470 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 123 [2021-03-25 09:32:33,470 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:34,038 INFO L129 PetriNetUnfolder]: 594/1338 cut-off events. [2021-03-25 09:32:34,038 INFO L130 PetriNetUnfolder]: For 69413/69423 co-relation queries the response was YES. [2021-03-25 09:32:34,055 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17240 conditions, 1338 events. 594/1338 cut-off events. For 69413/69423 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 8991 event pairs, 1 based on Foata normal form. 11/1192 useless extension candidates. Maximal degree in co-relation 17052. Up to 843 conditions per place. [2021-03-25 09:32:34,061 INFO L132 encePairwiseOnDemand]: 105/123 looper letters, 572 selfloop transitions, 34 changer transitions 5/629 dead transitions. [2021-03-25 09:32:34,061 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 629 transitions, 20769 flow [2021-03-25 09:32:34,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:32:34,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:32:34,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 633 transitions. [2021-03-25 09:32:34,062 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.42886178861788615 [2021-03-25 09:32:34,062 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 633 transitions. [2021-03-25 09:32:34,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 633 transitions. [2021-03-25 09:32:34,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:34,062 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 633 transitions. [2021-03-25 09:32:34,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 52.75) internal successors, (633), 12 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:34,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 123.0) internal successors, (1599), 13 states have internal predecessors, (1599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:34,063 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 123.0) internal successors, (1599), 13 states have internal predecessors, (1599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:34,063 INFO L185 Difference]: Start difference. First operand has 453 places, 622 transitions, 19505 flow. Second operand 12 states and 633 transitions. [2021-03-25 09:32:34,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 629 transitions, 20769 flow [2021-03-25 09:32:34,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 629 transitions, 20655 flow, removed 8 selfloop flow, removed 12 redundant places. [2021-03-25 09:32:34,603 INFO L241 Difference]: Finished difference. Result has 453 places, 617 transitions, 19399 flow [2021-03-25 09:32:34,603 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=19391, PETRI_DIFFERENCE_MINUEND_PLACES=441, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=622, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=588, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=19399, PETRI_PLACES=453, PETRI_TRANSITIONS=617} [2021-03-25 09:32:34,603 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 392 predicate places. [2021-03-25 09:32:34,604 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:34,604 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 453 places, 617 transitions, 19399 flow [2021-03-25 09:32:34,604 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 453 places, 617 transitions, 19399 flow [2021-03-25 09:32:34,610 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 447 places, 617 transitions, 19399 flow [2021-03-25 09:32:34,822 INFO L129 PetriNetUnfolder]: 522/1203 cut-off events. [2021-03-25 09:32:34,822 INFO L130 PetriNetUnfolder]: For 67611/67614 co-relation queries the response was YES. [2021-03-25 09:32:34,836 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15704 conditions, 1203 events. 522/1203 cut-off events. For 67611/67614 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 8180 event pairs, 6 based on Foata normal form. 1/1072 useless extension candidates. Maximal degree in co-relation 15519. Up to 309 conditions per place. [2021-03-25 09:32:34,851 INFO L142 LiptonReduction]: Number of co-enabled transitions 2030 [2021-03-25 09:32:34,971 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-25 09:32:34,971 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:32:34,972 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 368 [2021-03-25 09:32:34,972 INFO L480 AbstractCegarLoop]: Abstraction has has 447 places, 617 transitions, 19430 flow [2021-03-25 09:32:34,972 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:34,972 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:34,972 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:32:34,972 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2021-03-25 09:32:34,972 INFO L428 AbstractCegarLoop]: === Iteration 124 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:32:34,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:34,972 INFO L82 PathProgramCache]: Analyzing trace with hash 1401515429, now seen corresponding path program 51 times [2021-03-25 09:32:34,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:34,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948854694] [2021-03-25 09:32:34,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:34,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:34,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:34,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:34,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:34,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:32:34,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:34,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:34,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:34,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:35,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:35,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:35,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:35,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:32:35,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:35,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:35,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:35,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:35,024 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:32:35,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:32:35,036 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:32:35,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:35,050 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:32:35,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:35,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:32:35,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948854694] [2021-03-25 09:32:35,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:35,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:32:35,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081279153] [2021-03-25 09:32:35,052 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:32:35,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:35,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:32:35,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:32:35,053 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 124 [2021-03-25 09:32:35,053 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 447 places, 617 transitions, 19430 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:35,053 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:35,053 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 124 [2021-03-25 09:32:35,053 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:35,695 INFO L129 PetriNetUnfolder]: 583/1306 cut-off events. [2021-03-25 09:32:35,695 INFO L130 PetriNetUnfolder]: For 68003/68015 co-relation queries the response was YES. [2021-03-25 09:32:35,714 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17185 conditions, 1306 events. 583/1306 cut-off events. For 68003/68015 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 8680 event pairs, 5 based on Foata normal form. 13/1169 useless extension candidates. Maximal degree in co-relation 16998. Up to 841 conditions per place. [2021-03-25 09:32:35,721 INFO L132 encePairwiseOnDemand]: 105/124 looper letters, 570 selfloop transitions, 30 changer transitions 6/624 dead transitions. [2021-03-25 09:32:35,721 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 624 transitions, 20684 flow [2021-03-25 09:32:35,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:32:35,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:32:35,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 582 transitions. [2021-03-25 09:32:35,722 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.42668621700879766 [2021-03-25 09:32:35,722 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 582 transitions. [2021-03-25 09:32:35,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 582 transitions. [2021-03-25 09:32:35,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:35,722 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 582 transitions. [2021-03-25 09:32:35,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 52.90909090909091) internal successors, (582), 11 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:35,723 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 124.0) internal successors, (1488), 12 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:35,723 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 124.0) internal successors, (1488), 12 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:35,723 INFO L185 Difference]: Start difference. First operand has 447 places, 617 transitions, 19430 flow. Second operand 11 states and 582 transitions. [2021-03-25 09:32:35,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 624 transitions, 20684 flow [2021-03-25 09:32:36,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 446 places, 624 transitions, 20584 flow, removed 5 selfloop flow, removed 11 redundant places. [2021-03-25 09:32:36,270 INFO L241 Difference]: Finished difference. Result has 447 places, 611 transitions, 19132 flow [2021-03-25 09:32:36,271 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=19330, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=617, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=587, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=19132, PETRI_PLACES=447, PETRI_TRANSITIONS=611} [2021-03-25 09:32:36,271 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 386 predicate places. [2021-03-25 09:32:36,271 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:36,271 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 447 places, 611 transitions, 19132 flow [2021-03-25 09:32:36,271 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 447 places, 611 transitions, 19132 flow [2021-03-25 09:32:36,277 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 440 places, 611 transitions, 19132 flow [2021-03-25 09:32:36,513 INFO L129 PetriNetUnfolder]: 521/1199 cut-off events. [2021-03-25 09:32:36,513 INFO L130 PetriNetUnfolder]: For 65832/65837 co-relation queries the response was YES. [2021-03-25 09:32:36,527 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15428 conditions, 1199 events. 521/1199 cut-off events. For 65832/65837 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 8175 event pairs, 7 based on Foata normal form. 3/1066 useless extension candidates. Maximal degree in co-relation 15246. Up to 307 conditions per place. [2021-03-25 09:32:36,543 INFO L142 LiptonReduction]: Number of co-enabled transitions 2020 [2021-03-25 09:32:36,652 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:32:36,652 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:32:36,652 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 381 [2021-03-25 09:32:36,653 INFO L480 AbstractCegarLoop]: Abstraction has has 440 places, 611 transitions, 19132 flow [2021-03-25 09:32:36,653 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:36,653 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:36,654 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:32:36,654 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2021-03-25 09:32:36,654 INFO L428 AbstractCegarLoop]: === Iteration 125 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:32:36,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:36,654 INFO L82 PathProgramCache]: Analyzing trace with hash 71425703, now seen corresponding path program 52 times [2021-03-25 09:32:36,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:36,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078216637] [2021-03-25 09:32:36,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:36,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:36,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:36,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:36,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:36,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:32:36,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:36,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:36,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:36,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:36,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:36,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:36,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:36,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:36,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:36,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:36,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:36,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:36,731 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 09:32:36,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:32:36,744 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:32:36,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:36,757 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:32:36,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:36,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:32:36,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078216637] [2021-03-25 09:32:36,760 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:36,760 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:32:36,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017962334] [2021-03-25 09:32:36,760 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:32:36,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:36,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:32:36,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:32:36,761 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 124 [2021-03-25 09:32:36,761 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 611 transitions, 19132 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:36,761 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:36,761 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 124 [2021-03-25 09:32:36,761 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:37,480 INFO L129 PetriNetUnfolder]: 580/1296 cut-off events. [2021-03-25 09:32:37,480 INFO L130 PetriNetUnfolder]: For 66921/66927 co-relation queries the response was YES. [2021-03-25 09:32:37,493 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16992 conditions, 1296 events. 580/1296 cut-off events. For 66921/66927 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 8604 event pairs, 5 based on Foata normal form. 7/1158 useless extension candidates. Maximal degree in co-relation 16808. Up to 822 conditions per place. [2021-03-25 09:32:37,500 INFO L132 encePairwiseOnDemand]: 106/124 looper letters, 539 selfloop transitions, 59 changer transitions 5/621 dead transitions. [2021-03-25 09:32:37,500 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 621 transitions, 20430 flow [2021-03-25 09:32:37,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 09:32:37,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 09:32:37,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 788 transitions. [2021-03-25 09:32:37,501 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4236559139784946 [2021-03-25 09:32:37,501 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 788 transitions. [2021-03-25 09:32:37,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 788 transitions. [2021-03-25 09:32:37,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:37,501 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 788 transitions. [2021-03-25 09:32:37,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 52.53333333333333) internal successors, (788), 15 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:37,502 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 124.0) internal successors, (1984), 16 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:37,503 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 124.0) internal successors, (1984), 16 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:37,503 INFO L185 Difference]: Start difference. First operand has 440 places, 611 transitions, 19132 flow. Second operand 15 states and 788 transitions. [2021-03-25 09:32:37,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 621 transitions, 20430 flow [2021-03-25 09:32:38,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 621 transitions, 20302 flow, removed 19 selfloop flow, removed 10 redundant places. [2021-03-25 09:32:38,019 INFO L241 Difference]: Finished difference. Result has 446 places, 607 transitions, 19037 flow [2021-03-25 09:32:38,019 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=19004, PETRI_DIFFERENCE_MINUEND_PLACES=430, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=611, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=552, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=19037, PETRI_PLACES=446, PETRI_TRANSITIONS=607} [2021-03-25 09:32:38,019 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 385 predicate places. [2021-03-25 09:32:38,019 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:38,019 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 446 places, 607 transitions, 19037 flow [2021-03-25 09:32:38,019 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 446 places, 607 transitions, 19037 flow [2021-03-25 09:32:38,025 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 445 places, 607 transitions, 19037 flow [2021-03-25 09:32:38,242 INFO L129 PetriNetUnfolder]: 524/1204 cut-off events. [2021-03-25 09:32:38,242 INFO L130 PetriNetUnfolder]: For 63820/63823 co-relation queries the response was YES. [2021-03-25 09:32:38,256 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15534 conditions, 1204 events. 524/1204 cut-off events. For 63820/63823 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 8156 event pairs, 8 based on Foata normal form. 1/1068 useless extension candidates. Maximal degree in co-relation 15353. Up to 308 conditions per place. [2021-03-25 09:32:38,271 INFO L142 LiptonReduction]: Number of co-enabled transitions 2020 [2021-03-25 09:32:38,311 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:32:38,311 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:32:38,311 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 292 [2021-03-25 09:32:38,311 INFO L480 AbstractCegarLoop]: Abstraction has has 445 places, 607 transitions, 19037 flow [2021-03-25 09:32:38,311 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:38,311 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:38,312 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:32:38,312 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-03-25 09:32:38,312 INFO L428 AbstractCegarLoop]: === Iteration 126 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:32:38,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:38,312 INFO L82 PathProgramCache]: Analyzing trace with hash 1958950457, now seen corresponding path program 53 times [2021-03-25 09:32:38,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:38,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327672948] [2021-03-25 09:32:38,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:38,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:38,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:38,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:38,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:38,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:32:38,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:38,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:38,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:38,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:38,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:38,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:38,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:38,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:38,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:38,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:32:38,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:38,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:38,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:38,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:38,399 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:32:38,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:38,403 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:32:38,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:38,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:32:38,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327672948] [2021-03-25 09:32:38,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:38,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:32:38,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699319372] [2021-03-25 09:32:38,405 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:32:38,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:38,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:32:38,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:32:38,406 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 124 [2021-03-25 09:32:38,406 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 607 transitions, 19037 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:38,406 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:38,406 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 124 [2021-03-25 09:32:38,406 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:39,133 INFO L129 PetriNetUnfolder]: 595/1339 cut-off events. [2021-03-25 09:32:39,133 INFO L130 PetriNetUnfolder]: For 71071/71075 co-relation queries the response was YES. [2021-03-25 09:32:39,149 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17317 conditions, 1339 events. 595/1339 cut-off events. For 71071/71075 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 8981 event pairs, 17 based on Foata normal form. 5/1187 useless extension candidates. Maximal degree in co-relation 17134. Up to 768 conditions per place. [2021-03-25 09:32:39,155 INFO L132 encePairwiseOnDemand]: 106/124 looper letters, 455 selfloop transitions, 158 changer transitions 0/631 dead transitions. [2021-03-25 09:32:39,156 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 631 transitions, 20942 flow [2021-03-25 09:32:39,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 09:32:39,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 09:32:39,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 864 transitions. [2021-03-25 09:32:39,157 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43548387096774194 [2021-03-25 09:32:39,157 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 864 transitions. [2021-03-25 09:32:39,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 864 transitions. [2021-03-25 09:32:39,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:39,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 864 transitions. [2021-03-25 09:32:39,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 54.0) internal successors, (864), 16 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:39,158 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 124.0) internal successors, (2108), 17 states have internal predecessors, (2108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:39,158 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 124.0) internal successors, (2108), 17 states have internal predecessors, (2108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:39,158 INFO L185 Difference]: Start difference. First operand has 445 places, 607 transitions, 19037 flow. Second operand 16 states and 864 transitions. [2021-03-25 09:32:39,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 631 transitions, 20942 flow [2021-03-25 09:32:39,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 631 transitions, 20575 flow, removed 110 selfloop flow, removed 17 redundant places. [2021-03-25 09:32:39,683 INFO L241 Difference]: Finished difference. Result has 446 places, 622 transitions, 19703 flow [2021-03-25 09:32:39,684 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=18676, PETRI_DIFFERENCE_MINUEND_PLACES=428, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=607, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=143, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=19703, PETRI_PLACES=446, PETRI_TRANSITIONS=622} [2021-03-25 09:32:39,684 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 385 predicate places. [2021-03-25 09:32:39,684 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:39,684 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 446 places, 622 transitions, 19703 flow [2021-03-25 09:32:39,684 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 446 places, 622 transitions, 19703 flow [2021-03-25 09:32:39,690 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 446 places, 622 transitions, 19703 flow [2021-03-25 09:32:39,915 INFO L129 PetriNetUnfolder]: 544/1259 cut-off events. [2021-03-25 09:32:39,915 INFO L130 PetriNetUnfolder]: For 66141/66148 co-relation queries the response was YES. [2021-03-25 09:32:39,930 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16026 conditions, 1259 events. 544/1259 cut-off events. For 66141/66148 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 8652 event pairs, 7 based on Foata normal form. 1/1108 useless extension candidates. Maximal degree in co-relation 15782. Up to 319 conditions per place. [2021-03-25 09:32:39,946 INFO L142 LiptonReduction]: Number of co-enabled transitions 2068 [2021-03-25 09:32:39,990 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:32:39,990 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:32:39,990 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 306 [2021-03-25 09:32:39,991 INFO L480 AbstractCegarLoop]: Abstraction has has 446 places, 622 transitions, 19703 flow [2021-03-25 09:32:39,991 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:39,991 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:39,991 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:32:39,991 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2021-03-25 09:32:39,991 INFO L428 AbstractCegarLoop]: === Iteration 127 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:32:39,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:39,991 INFO L82 PathProgramCache]: Analyzing trace with hash -1087122889, now seen corresponding path program 54 times [2021-03-25 09:32:39,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:39,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771224916] [2021-03-25 09:32:39,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:39,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:39,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:39,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:40,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:40,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:32:40,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:40,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:40,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:40,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:40,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:40,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:40,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:40,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:40,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:40,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:40,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:40,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:40,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:40,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:40,055 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:32:40,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:40,068 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:32:40,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:40,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:32:40,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771224916] [2021-03-25 09:32:40,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:40,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:32:40,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83029248] [2021-03-25 09:32:40,071 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:32:40,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:40,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:32:40,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:32:40,071 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 124 [2021-03-25 09:32:40,072 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 622 transitions, 19703 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:40,072 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:40,072 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 124 [2021-03-25 09:32:40,072 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:40,702 INFO L129 PetriNetUnfolder]: 594/1346 cut-off events. [2021-03-25 09:32:40,702 INFO L130 PetriNetUnfolder]: For 66958/66973 co-relation queries the response was YES. [2021-03-25 09:32:40,719 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17360 conditions, 1346 events. 594/1346 cut-off events. For 66958/66973 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 9094 event pairs, 6 based on Foata normal form. 16/1205 useless extension candidates. Maximal degree in co-relation 17108. Up to 835 conditions per place. [2021-03-25 09:32:40,725 INFO L132 encePairwiseOnDemand]: 106/124 looper letters, 560 selfloop transitions, 50 changer transitions 7/635 dead transitions. [2021-03-25 09:32:40,726 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 635 transitions, 21104 flow [2021-03-25 09:32:40,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:32:40,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:32:40,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 692 transitions. [2021-03-25 09:32:40,727 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4292803970223325 [2021-03-25 09:32:40,727 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 692 transitions. [2021-03-25 09:32:40,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 692 transitions. [2021-03-25 09:32:40,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:40,727 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 692 transitions. [2021-03-25 09:32:40,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 53.23076923076923) internal successors, (692), 13 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:40,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 124.0) internal successors, (1736), 14 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:40,728 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 124.0) internal successors, (1736), 14 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:40,728 INFO L185 Difference]: Start difference. First operand has 446 places, 622 transitions, 19703 flow. Second operand 13 states and 692 transitions. [2021-03-25 09:32:40,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 635 transitions, 21104 flow [2021-03-25 09:32:41,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 448 places, 635 transitions, 20834 flow, removed 57 selfloop flow, removed 10 redundant places. [2021-03-25 09:32:41,310 INFO L241 Difference]: Finished difference. Result has 452 places, 619 transitions, 19528 flow [2021-03-25 09:32:41,310 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=19433, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=622, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=572, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=19528, PETRI_PLACES=452, PETRI_TRANSITIONS=619} [2021-03-25 09:32:41,310 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 391 predicate places. [2021-03-25 09:32:41,310 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:41,310 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 452 places, 619 transitions, 19528 flow [2021-03-25 09:32:41,310 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 452 places, 619 transitions, 19528 flow [2021-03-25 09:32:41,316 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 450 places, 619 transitions, 19528 flow [2021-03-25 09:32:41,545 INFO L129 PetriNetUnfolder]: 541/1250 cut-off events. [2021-03-25 09:32:41,545 INFO L130 PetriNetUnfolder]: For 64554/64561 co-relation queries the response was YES. [2021-03-25 09:32:41,560 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15930 conditions, 1250 events. 541/1250 cut-off events. For 64554/64561 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 8552 event pairs, 6 based on Foata normal form. 1/1101 useless extension candidates. Maximal degree in co-relation 15745. Up to 317 conditions per place. [2021-03-25 09:32:41,576 INFO L142 LiptonReduction]: Number of co-enabled transitions 2068 [2021-03-25 09:32:41,699 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:32:41,699 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:32:41,700 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 390 [2021-03-25 09:32:41,700 INFO L480 AbstractCegarLoop]: Abstraction has has 448 places, 618 transitions, 19514 flow [2021-03-25 09:32:41,700 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:41,700 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:41,700 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:32:41,701 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2021-03-25 09:32:41,701 INFO L428 AbstractCegarLoop]: === Iteration 128 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:32:41,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:41,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1358270305, now seen corresponding path program 55 times [2021-03-25 09:32:41,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:41,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370487132] [2021-03-25 09:32:41,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:41,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:41,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:41,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:41,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:41,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:32:41,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:41,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:41,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:41,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:41,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:41,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:41,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:41,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:41,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:41,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:32:41,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:41,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:41,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:41,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:41,792 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:32:41,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:41,796 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:32:41,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:41,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:32:41,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370487132] [2021-03-25 09:32:41,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:41,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:32:41,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647922103] [2021-03-25 09:32:41,798 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:32:41,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:41,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:32:41,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:32:41,799 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 125 [2021-03-25 09:32:41,799 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 448 places, 618 transitions, 19514 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:41,799 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:41,799 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 125 [2021-03-25 09:32:41,799 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:42,513 INFO L129 PetriNetUnfolder]: 604/1379 cut-off events. [2021-03-25 09:32:42,513 INFO L130 PetriNetUnfolder]: For 69455/69461 co-relation queries the response was YES. [2021-03-25 09:32:42,530 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17340 conditions, 1379 events. 604/1379 cut-off events. For 69455/69461 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 9499 event pairs, 4 based on Foata normal form. 7/1218 useless extension candidates. Maximal degree in co-relation 17153. Up to 777 conditions per place. [2021-03-25 09:32:42,537 INFO L132 encePairwiseOnDemand]: 108/125 looper letters, 467 selfloop transitions, 146 changer transitions 0/631 dead transitions. [2021-03-25 09:32:42,537 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 631 transitions, 20983 flow [2021-03-25 09:32:42,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:32:42,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:32:42,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 699 transitions. [2021-03-25 09:32:42,538 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43015384615384616 [2021-03-25 09:32:42,539 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 699 transitions. [2021-03-25 09:32:42,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 699 transitions. [2021-03-25 09:32:42,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:42,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 699 transitions. [2021-03-25 09:32:42,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 53.76923076923077) internal successors, (699), 13 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:42,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 125.0) internal successors, (1750), 14 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:42,540 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 125.0) internal successors, (1750), 14 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:42,540 INFO L185 Difference]: Start difference. First operand has 448 places, 618 transitions, 19514 flow. Second operand 13 states and 699 transitions. [2021-03-25 09:32:42,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 631 transitions, 20983 flow [2021-03-25 09:32:43,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 446 places, 631 transitions, 20834 flow, removed 9 selfloop flow, removed 14 redundant places. [2021-03-25 09:32:43,057 INFO L241 Difference]: Finished difference. Result has 450 places, 625 transitions, 19913 flow [2021-03-25 09:32:43,057 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=19365, PETRI_DIFFERENCE_MINUEND_PLACES=434, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=618, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=472, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=19913, PETRI_PLACES=450, PETRI_TRANSITIONS=625} [2021-03-25 09:32:43,057 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 389 predicate places. [2021-03-25 09:32:43,058 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:43,058 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 450 places, 625 transitions, 19913 flow [2021-03-25 09:32:43,058 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 450 places, 625 transitions, 19913 flow [2021-03-25 09:32:43,064 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 450 places, 625 transitions, 19913 flow [2021-03-25 09:32:43,297 INFO L129 PetriNetUnfolder]: 556/1303 cut-off events. [2021-03-25 09:32:43,297 INFO L130 PetriNetUnfolder]: For 68494/68501 co-relation queries the response was YES. [2021-03-25 09:32:43,312 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16167 conditions, 1303 events. 556/1303 cut-off events. For 68494/68501 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 9050 event pairs, 7 based on Foata normal form. 1/1138 useless extension candidates. Maximal degree in co-relation 15920. Up to 319 conditions per place. [2021-03-25 09:32:43,329 INFO L142 LiptonReduction]: Number of co-enabled transitions 2134 [2021-03-25 09:32:43,372 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:32:43,373 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:32:43,373 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 315 [2021-03-25 09:32:43,373 INFO L480 AbstractCegarLoop]: Abstraction has has 450 places, 625 transitions, 19913 flow [2021-03-25 09:32:43,373 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:43,373 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:43,373 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:32:43,373 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2021-03-25 09:32:43,373 INFO L428 AbstractCegarLoop]: === Iteration 129 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:32:43,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:43,374 INFO L82 PathProgramCache]: Analyzing trace with hash 482773150, now seen corresponding path program 1 times [2021-03-25 09:32:43,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:43,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072229928] [2021-03-25 09:32:43,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:43,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:43,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:43,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:43,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:43,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:32:43,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:43,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:43,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:43,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:43,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:43,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:43,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:43,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:43,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:43,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:43,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:43,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:43,435 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:32:43,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:43,448 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:32:43,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:43,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:32:43,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072229928] [2021-03-25 09:32:43,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:43,451 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:32:43,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115050708] [2021-03-25 09:32:43,451 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:32:43,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:43,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:32:43,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:32:43,452 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 125 [2021-03-25 09:32:43,452 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 625 transitions, 19913 flow. Second operand has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:43,452 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:43,452 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 125 [2021-03-25 09:32:43,452 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:44,029 INFO L129 PetriNetUnfolder]: 602/1376 cut-off events. [2021-03-25 09:32:44,029 INFO L130 PetriNetUnfolder]: For 70358/70371 co-relation queries the response was YES. [2021-03-25 09:32:44,046 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17432 conditions, 1376 events. 602/1376 cut-off events. For 70358/70371 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 9357 event pairs, 17 based on Foata normal form. 14/1223 useless extension candidates. Maximal degree in co-relation 17177. Up to 856 conditions per place. [2021-03-25 09:32:44,053 INFO L132 encePairwiseOnDemand]: 108/125 looper letters, 582 selfloop transitions, 22 changer transitions 8/630 dead transitions. [2021-03-25 09:32:44,053 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 461 places, 630 transitions, 21167 flow [2021-03-25 09:32:44,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:32:44,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:32:44,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 625 transitions. [2021-03-25 09:32:44,054 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4166666666666667 [2021-03-25 09:32:44,054 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 625 transitions. [2021-03-25 09:32:44,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 625 transitions. [2021-03-25 09:32:44,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:44,055 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 625 transitions. [2021-03-25 09:32:44,055 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 52.083333333333336) internal successors, (625), 12 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:44,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 125.0) internal successors, (1625), 13 states have internal predecessors, (1625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:44,056 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 125.0) internal successors, (1625), 13 states have internal predecessors, (1625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:44,056 INFO L185 Difference]: Start difference. First operand has 450 places, 625 transitions, 19913 flow. Second operand 12 states and 625 transitions. [2021-03-25 09:32:44,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 461 places, 630 transitions, 21167 flow [2021-03-25 09:32:44,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 630 transitions, 20652 flow, removed 109 selfloop flow, removed 7 redundant places. [2021-03-25 09:32:44,615 INFO L241 Difference]: Finished difference. Result has 455 places, 617 transitions, 19173 flow [2021-03-25 09:32:44,615 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=19398, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=625, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=603, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=19173, PETRI_PLACES=455, PETRI_TRANSITIONS=617} [2021-03-25 09:32:44,615 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 394 predicate places. [2021-03-25 09:32:44,615 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:44,615 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 455 places, 617 transitions, 19173 flow [2021-03-25 09:32:44,616 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 455 places, 617 transitions, 19173 flow [2021-03-25 09:32:44,621 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 445 places, 617 transitions, 19173 flow [2021-03-25 09:32:44,866 INFO L129 PetriNetUnfolder]: 548/1276 cut-off events. [2021-03-25 09:32:44,866 INFO L130 PetriNetUnfolder]: For 65828/65835 co-relation queries the response was YES. [2021-03-25 09:32:44,881 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15753 conditions, 1276 events. 548/1276 cut-off events. For 65828/65835 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 8800 event pairs, 7 based on Foata normal form. 1/1118 useless extension candidates. Maximal degree in co-relation 15566. Up to 314 conditions per place. [2021-03-25 09:32:44,897 INFO L142 LiptonReduction]: Number of co-enabled transitions 2100 [2021-03-25 09:32:44,938 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:32:44,938 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:32:44,939 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 324 [2021-03-25 09:32:44,939 INFO L480 AbstractCegarLoop]: Abstraction has has 445 places, 617 transitions, 19173 flow [2021-03-25 09:32:44,939 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:44,939 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:44,939 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:32:44,939 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2021-03-25 09:32:44,939 INFO L428 AbstractCegarLoop]: === Iteration 130 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:32:44,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:44,939 INFO L82 PathProgramCache]: Analyzing trace with hash -98036053, now seen corresponding path program 56 times [2021-03-25 09:32:44,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:44,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204913930] [2021-03-25 09:32:44,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:44,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:44,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:44,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:44,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:44,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:32:44,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:44,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:44,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:44,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:44,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:44,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:44,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:44,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:32:44,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:44,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:44,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:44,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:45,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:45,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:45,016 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:32:45,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:45,020 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:32:45,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:45,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:32:45,023 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204913930] [2021-03-25 09:32:45,023 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:45,023 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:32:45,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749814499] [2021-03-25 09:32:45,023 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:32:45,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:45,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:32:45,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:32:45,024 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 125 [2021-03-25 09:32:45,024 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 617 transitions, 19173 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:45,024 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:45,024 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 125 [2021-03-25 09:32:45,024 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:45,666 INFO L129 PetriNetUnfolder]: 597/1360 cut-off events. [2021-03-25 09:32:45,666 INFO L130 PetriNetUnfolder]: For 69056/69062 co-relation queries the response was YES. [2021-03-25 09:32:45,684 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17081 conditions, 1360 events. 597/1360 cut-off events. For 69056/69062 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 9311 event pairs, 4 based on Foata normal form. 7/1205 useless extension candidates. Maximal degree in co-relation 16892. Up to 707 conditions per place. [2021-03-25 09:32:45,690 INFO L132 encePairwiseOnDemand]: 105/125 looper letters, 436 selfloop transitions, 176 changer transitions 0/630 dead transitions. [2021-03-25 09:32:45,690 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 630 transitions, 20648 flow [2021-03-25 09:32:45,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:32:45,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:32:45,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 608 transitions. [2021-03-25 09:32:45,691 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4421818181818182 [2021-03-25 09:32:45,692 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 608 transitions. [2021-03-25 09:32:45,692 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 608 transitions. [2021-03-25 09:32:45,692 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:45,692 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 608 transitions. [2021-03-25 09:32:45,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 55.27272727272727) internal successors, (608), 11 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:45,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 125.0) internal successors, (1500), 12 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:45,693 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 125.0) internal successors, (1500), 12 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:45,693 INFO L185 Difference]: Start difference. First operand has 445 places, 617 transitions, 19173 flow. Second operand 11 states and 608 transitions. [2021-03-25 09:32:45,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 630 transitions, 20648 flow [2021-03-25 09:32:46,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 630 transitions, 20101 flow, removed 203 selfloop flow, removed 18 redundant places. [2021-03-25 09:32:46,220 INFO L241 Difference]: Finished difference. Result has 440 places, 621 transitions, 19305 flow [2021-03-25 09:32:46,220 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=18636, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=617, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=172, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=443, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=19305, PETRI_PLACES=440, PETRI_TRANSITIONS=621} [2021-03-25 09:32:46,220 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 379 predicate places. [2021-03-25 09:32:46,221 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:46,221 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 440 places, 621 transitions, 19305 flow [2021-03-25 09:32:46,221 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 440 places, 621 transitions, 19305 flow [2021-03-25 09:32:46,227 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 440 places, 621 transitions, 19305 flow [2021-03-25 09:32:46,449 INFO L129 PetriNetUnfolder]: 551/1292 cut-off events. [2021-03-25 09:32:46,449 INFO L130 PetriNetUnfolder]: For 62348/62351 co-relation queries the response was YES. [2021-03-25 09:32:46,466 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15554 conditions, 1292 events. 551/1292 cut-off events. For 62348/62351 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 9004 event pairs, 9 based on Foata normal form. 1/1130 useless extension candidates. Maximal degree in co-relation 15313. Up to 310 conditions per place. [2021-03-25 09:32:46,483 INFO L142 LiptonReduction]: Number of co-enabled transitions 2128 [2021-03-25 09:32:46,527 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:32:46,528 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:32:46,528 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 307 [2021-03-25 09:32:46,528 INFO L480 AbstractCegarLoop]: Abstraction has has 440 places, 621 transitions, 19305 flow [2021-03-25 09:32:46,528 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:46,528 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:46,528 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:32:46,528 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2021-03-25 09:32:46,528 INFO L428 AbstractCegarLoop]: === Iteration 131 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:32:46,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:46,528 INFO L82 PathProgramCache]: Analyzing trace with hash 1239531161, now seen corresponding path program 57 times [2021-03-25 09:32:46,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:46,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828526186] [2021-03-25 09:32:46,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:46,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:46,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:46,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:46,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:46,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:32:46,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:46,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:46,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:46,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:46,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:46,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:46,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:46,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:32:46,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:46,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:46,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:46,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:46,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:46,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:46,606 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:32:46,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:46,610 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:32:46,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:46,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:32:46,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828526186] [2021-03-25 09:32:46,612 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:46,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:32:46,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756170477] [2021-03-25 09:32:46,613 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:32:46,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:46,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:32:46,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:32:46,613 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 125 [2021-03-25 09:32:46,613 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 621 transitions, 19305 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:46,613 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:46,613 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 125 [2021-03-25 09:32:46,613 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:47,302 INFO L129 PetriNetUnfolder]: 596/1362 cut-off events. [2021-03-25 09:32:47,302 INFO L130 PetriNetUnfolder]: For 63905/63911 co-relation queries the response was YES. [2021-03-25 09:32:47,320 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17011 conditions, 1362 events. 596/1362 cut-off events. For 63905/63911 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 9256 event pairs, 5 based on Foata normal form. 7/1208 useless extension candidates. Maximal degree in co-relation 16762. Up to 757 conditions per place. [2021-03-25 09:32:47,327 INFO L132 encePairwiseOnDemand]: 106/125 looper letters, 467 selfloop transitions, 149 changer transitions 0/634 dead transitions. [2021-03-25 09:32:47,327 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 634 transitions, 20756 flow [2021-03-25 09:32:47,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:32:47,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:32:47,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 704 transitions. [2021-03-25 09:32:47,328 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43323076923076925 [2021-03-25 09:32:47,328 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 704 transitions. [2021-03-25 09:32:47,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 704 transitions. [2021-03-25 09:32:47,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:47,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 704 transitions. [2021-03-25 09:32:47,329 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 54.15384615384615) internal successors, (704), 13 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:47,329 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 125.0) internal successors, (1750), 14 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:47,329 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 125.0) internal successors, (1750), 14 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:47,329 INFO L185 Difference]: Start difference. First operand has 440 places, 621 transitions, 19305 flow. Second operand 13 states and 704 transitions. [2021-03-25 09:32:47,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 634 transitions, 20756 flow [2021-03-25 09:32:47,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 441 places, 634 transitions, 20041 flow, removed 130 selfloop flow, removed 11 redundant places. [2021-03-25 09:32:47,865 INFO L241 Difference]: Finished difference. Result has 446 places, 626 transitions, 19123 flow [2021-03-25 09:32:47,865 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=18608, PETRI_DIFFERENCE_MINUEND_PLACES=429, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=621, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=144, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=472, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=19123, PETRI_PLACES=446, PETRI_TRANSITIONS=626} [2021-03-25 09:32:47,865 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 385 predicate places. [2021-03-25 09:32:47,865 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:47,866 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 446 places, 626 transitions, 19123 flow [2021-03-25 09:32:47,866 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 446 places, 626 transitions, 19123 flow [2021-03-25 09:32:47,872 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 446 places, 626 transitions, 19123 flow [2021-03-25 09:32:48,122 INFO L129 PetriNetUnfolder]: 549/1291 cut-off events. [2021-03-25 09:32:48,122 INFO L130 PetriNetUnfolder]: For 62155/62161 co-relation queries the response was YES. [2021-03-25 09:32:48,138 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15500 conditions, 1291 events. 549/1291 cut-off events. For 62155/62161 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 8992 event pairs, 9 based on Foata normal form. 0/1131 useless extension candidates. Maximal degree in co-relation 15304. Up to 313 conditions per place. [2021-03-25 09:32:48,155 INFO L142 LiptonReduction]: Number of co-enabled transitions 2166 [2021-03-25 09:32:48,200 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:32:48,201 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:32:48,201 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 336 [2021-03-25 09:32:48,201 INFO L480 AbstractCegarLoop]: Abstraction has has 446 places, 626 transitions, 19123 flow [2021-03-25 09:32:48,201 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:48,201 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:48,201 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:32:48,201 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2021-03-25 09:32:48,201 INFO L428 AbstractCegarLoop]: === Iteration 132 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:32:48,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:48,201 INFO L82 PathProgramCache]: Analyzing trace with hash 285814461, now seen corresponding path program 58 times [2021-03-25 09:32:48,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:48,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432419855] [2021-03-25 09:32:48,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:48,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:48,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:48,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:48,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:48,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:32:48,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:48,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:48,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:48,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:48,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:48,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:48,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:48,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:48,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:48,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:48,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:48,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:48,300 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:32:48,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:32:48,314 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:32:48,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:48,328 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:32:48,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:48,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:32:48,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432419855] [2021-03-25 09:32:48,330 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:48,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:32:48,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639316910] [2021-03-25 09:32:48,330 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:32:48,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:48,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:32:48,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:32:48,331 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 125 [2021-03-25 09:32:48,331 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 626 transitions, 19123 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:48,331 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:48,331 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 125 [2021-03-25 09:32:48,331 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:49,090 INFO L129 PetriNetUnfolder]: 602/1388 cut-off events. [2021-03-25 09:32:49,091 INFO L130 PetriNetUnfolder]: For 63992/63996 co-relation queries the response was YES. [2021-03-25 09:32:49,107 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16893 conditions, 1388 events. 602/1388 cut-off events. For 63992/63996 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 9531 event pairs, 18 based on Foata normal form. 6/1226 useless extension candidates. Maximal degree in co-relation 16693. Up to 742 conditions per place. [2021-03-25 09:32:49,113 INFO L132 encePairwiseOnDemand]: 106/125 looper letters, 437 selfloop transitions, 169 changer transitions 19/643 dead transitions. [2021-03-25 09:32:49,113 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 643 transitions, 20743 flow [2021-03-25 09:32:49,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-25 09:32:49,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-25 09:32:49,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1023 transitions. [2021-03-25 09:32:49,114 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43073684210526314 [2021-03-25 09:32:49,115 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1023 transitions. [2021-03-25 09:32:49,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1023 transitions. [2021-03-25 09:32:49,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:49,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1023 transitions. [2021-03-25 09:32:49,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 53.8421052631579) internal successors, (1023), 19 states have internal predecessors, (1023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:49,116 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 125.0) internal successors, (2500), 20 states have internal predecessors, (2500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:49,116 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 125.0) internal successors, (2500), 20 states have internal predecessors, (2500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:49,116 INFO L185 Difference]: Start difference. First operand has 446 places, 626 transitions, 19123 flow. Second operand 19 states and 1023 transitions. [2021-03-25 09:32:49,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 643 transitions, 20743 flow [2021-03-25 09:32:49,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 643 transitions, 20327 flow, removed 83 selfloop flow, removed 7 redundant places. [2021-03-25 09:32:49,585 INFO L241 Difference]: Finished difference. Result has 460 places, 612 transitions, 18101 flow [2021-03-25 09:32:49,585 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=18714, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=626, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=165, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=18101, PETRI_PLACES=460, PETRI_TRANSITIONS=612} [2021-03-25 09:32:49,585 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 399 predicate places. [2021-03-25 09:32:49,585 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:49,585 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 460 places, 612 transitions, 18101 flow [2021-03-25 09:32:49,586 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 460 places, 612 transitions, 18101 flow [2021-03-25 09:32:49,591 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 460 places, 612 transitions, 18101 flow [2021-03-25 09:32:49,809 INFO L129 PetriNetUnfolder]: 538/1279 cut-off events. [2021-03-25 09:32:49,810 INFO L130 PetriNetUnfolder]: For 61864/61872 co-relation queries the response was YES. [2021-03-25 09:32:49,825 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14802 conditions, 1279 events. 538/1279 cut-off events. For 61864/61872 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 8982 event pairs, 8 based on Foata normal form. 2/1118 useless extension candidates. Maximal degree in co-relation 14613. Up to 304 conditions per place. [2021-03-25 09:32:49,842 INFO L142 LiptonReduction]: Number of co-enabled transitions 2200 [2021-03-25 09:32:49,884 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:32:49,885 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:32:49,885 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 300 [2021-03-25 09:32:49,885 INFO L480 AbstractCegarLoop]: Abstraction has has 460 places, 612 transitions, 18101 flow [2021-03-25 09:32:49,885 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:49,885 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:49,885 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:32:49,885 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2021-03-25 09:32:49,885 INFO L428 AbstractCegarLoop]: === Iteration 133 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:32:49,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:49,885 INFO L82 PathProgramCache]: Analyzing trace with hash 142009703, now seen corresponding path program 59 times [2021-03-25 09:32:49,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:49,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427405518] [2021-03-25 09:32:49,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:49,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:49,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:49,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:49,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:49,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:32:49,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:49,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:49,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:49,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:49,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:49,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:49,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:49,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:49,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:49,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:32:49,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:49,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:49,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:49,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:49,972 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:32:49,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:49,980 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:32:49,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:49,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:32:49,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427405518] [2021-03-25 09:32:49,983 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:49,983 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:32:49,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116274763] [2021-03-25 09:32:49,983 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:32:49,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:49,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:32:49,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:32:49,983 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 125 [2021-03-25 09:32:49,984 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 460 places, 612 transitions, 18101 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:49,984 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:49,984 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 125 [2021-03-25 09:32:49,984 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:50,634 INFO L129 PetriNetUnfolder]: 595/1391 cut-off events. [2021-03-25 09:32:50,634 INFO L130 PetriNetUnfolder]: For 63297/63310 co-relation queries the response was YES. [2021-03-25 09:32:50,653 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16323 conditions, 1391 events. 595/1391 cut-off events. For 63297/63310 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 9630 event pairs, 18 based on Foata normal form. 14/1231 useless extension candidates. Maximal degree in co-relation 16123. Up to 771 conditions per place. [2021-03-25 09:32:50,659 INFO L132 encePairwiseOnDemand]: 108/125 looper letters, 480 selfloop transitions, 125 changer transitions 0/623 dead transitions. [2021-03-25 09:32:50,660 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 471 places, 623 transitions, 19555 flow [2021-03-25 09:32:50,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:32:50,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:32:50,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 650 transitions. [2021-03-25 09:32:50,661 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43333333333333335 [2021-03-25 09:32:50,661 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 650 transitions. [2021-03-25 09:32:50,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 650 transitions. [2021-03-25 09:32:50,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:50,661 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 650 transitions. [2021-03-25 09:32:50,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 54.166666666666664) internal successors, (650), 12 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:50,662 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 125.0) internal successors, (1625), 13 states have internal predecessors, (1625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:50,662 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 125.0) internal successors, (1625), 13 states have internal predecessors, (1625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:50,662 INFO L185 Difference]: Start difference. First operand has 460 places, 612 transitions, 18101 flow. Second operand 12 states and 650 transitions. [2021-03-25 09:32:50,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 471 places, 623 transitions, 19555 flow [2021-03-25 09:32:51,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 623 transitions, 19093 flow, removed 111 selfloop flow, removed 19 redundant places. [2021-03-25 09:32:51,139 INFO L241 Difference]: Finished difference. Result has 455 places, 615 transitions, 18060 flow [2021-03-25 09:32:51,139 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=17641, PETRI_DIFFERENCE_MINUEND_PLACES=441, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=612, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=487, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=18060, PETRI_PLACES=455, PETRI_TRANSITIONS=615} [2021-03-25 09:32:51,139 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 394 predicate places. [2021-03-25 09:32:51,139 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:51,140 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 455 places, 615 transitions, 18060 flow [2021-03-25 09:32:51,140 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 455 places, 615 transitions, 18060 flow [2021-03-25 09:32:51,145 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 455 places, 615 transitions, 18060 flow [2021-03-25 09:32:51,366 INFO L129 PetriNetUnfolder]: 542/1302 cut-off events. [2021-03-25 09:32:51,367 INFO L130 PetriNetUnfolder]: For 61587/61601 co-relation queries the response was YES. [2021-03-25 09:32:51,382 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14907 conditions, 1302 events. 542/1302 cut-off events. For 61587/61601 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 9301 event pairs, 8 based on Foata normal form. 1/1133 useless extension candidates. Maximal degree in co-relation 14717. Up to 309 conditions per place. [2021-03-25 09:32:51,398 INFO L142 LiptonReduction]: Number of co-enabled transitions 2238 [2021-03-25 09:32:51,440 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:32:51,440 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:32:51,440 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 301 [2021-03-25 09:32:51,441 INFO L480 AbstractCegarLoop]: Abstraction has has 455 places, 615 transitions, 18060 flow [2021-03-25 09:32:51,441 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:51,441 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:51,441 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:32:51,441 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2021-03-25 09:32:51,441 INFO L428 AbstractCegarLoop]: === Iteration 134 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:32:51,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:51,441 INFO L82 PathProgramCache]: Analyzing trace with hash 820684297, now seen corresponding path program 60 times [2021-03-25 09:32:51,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:51,441 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675971233] [2021-03-25 09:32:51,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:51,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:51,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:51,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:51,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:51,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:32:51,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:51,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:51,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:51,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:51,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:51,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:51,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:51,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:51,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:51,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:32:51,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:51,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:51,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:51,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:51,529 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:32:51,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:51,543 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:32:51,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:51,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:32:51,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675971233] [2021-03-25 09:32:51,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:51,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:32:51,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389598340] [2021-03-25 09:32:51,545 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:32:51,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:51,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:32:51,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:32:51,546 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 125 [2021-03-25 09:32:51,546 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 455 places, 615 transitions, 18060 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:51,546 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:51,546 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 125 [2021-03-25 09:32:51,546 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:52,272 INFO L129 PetriNetUnfolder]: 609/1440 cut-off events. [2021-03-25 09:32:52,272 INFO L130 PetriNetUnfolder]: For 63584/63597 co-relation queries the response was YES. [2021-03-25 09:32:52,289 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16707 conditions, 1440 events. 609/1440 cut-off events. For 63584/63597 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 10098 event pairs, 18 based on Foata normal form. 14/1268 useless extension candidates. Maximal degree in co-relation 16503. Up to 741 conditions per place. [2021-03-25 09:32:52,296 INFO L132 encePairwiseOnDemand]: 108/125 looper letters, 457 selfloop transitions, 157 changer transitions 3/635 dead transitions. [2021-03-25 09:32:52,296 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 635 transitions, 20002 flow [2021-03-25 09:32:52,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 09:32:52,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 09:32:52,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 800 transitions. [2021-03-25 09:32:52,297 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4266666666666667 [2021-03-25 09:32:52,297 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 800 transitions. [2021-03-25 09:32:52,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 800 transitions. [2021-03-25 09:32:52,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:52,297 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 800 transitions. [2021-03-25 09:32:52,297 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 53.333333333333336) internal successors, (800), 15 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:52,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 125.0) internal successors, (2000), 16 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:52,298 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 125.0) internal successors, (2000), 16 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:52,298 INFO L185 Difference]: Start difference. First operand has 455 places, 615 transitions, 18060 flow. Second operand 15 states and 800 transitions. [2021-03-25 09:32:52,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 635 transitions, 20002 flow [2021-03-25 09:32:52,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 635 transitions, 19663 flow, removed 55 selfloop flow, removed 8 redundant places. [2021-03-25 09:32:52,797 INFO L241 Difference]: Finished difference. Result has 465 places, 623 transitions, 18586 flow [2021-03-25 09:32:52,797 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=17721, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=615, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=148, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=18586, PETRI_PLACES=465, PETRI_TRANSITIONS=623} [2021-03-25 09:32:52,797 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 404 predicate places. [2021-03-25 09:32:52,798 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:52,798 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 465 places, 623 transitions, 18586 flow [2021-03-25 09:32:52,798 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 465 places, 623 transitions, 18586 flow [2021-03-25 09:32:52,804 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 465 places, 623 transitions, 18586 flow [2021-03-25 09:32:53,040 INFO L129 PetriNetUnfolder]: 560/1367 cut-off events. [2021-03-25 09:32:53,040 INFO L130 PetriNetUnfolder]: For 63801/63808 co-relation queries the response was YES. [2021-03-25 09:32:53,057 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15469 conditions, 1367 events. 560/1367 cut-off events. For 63801/63808 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 9862 event pairs, 8 based on Foata normal form. 1/1183 useless extension candidates. Maximal degree in co-relation 15275. Up to 315 conditions per place. [2021-03-25 09:32:53,074 INFO L142 LiptonReduction]: Number of co-enabled transitions 2292 [2021-03-25 09:32:53,117 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:32:53,117 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:32:53,117 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 319 [2021-03-25 09:32:53,117 INFO L480 AbstractCegarLoop]: Abstraction has has 465 places, 623 transitions, 18586 flow [2021-03-25 09:32:53,117 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:53,117 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:53,117 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:32:53,117 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2021-03-25 09:32:53,117 INFO L428 AbstractCegarLoop]: === Iteration 135 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:32:53,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:53,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1025832045, now seen corresponding path program 61 times [2021-03-25 09:32:53,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:53,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021042521] [2021-03-25 09:32:53,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:53,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:53,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:53,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:53,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:53,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:32:53,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:53,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:53,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:53,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:53,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:53,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:53,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:53,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:53,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:53,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:53,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:53,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:53,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:53,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:53,205 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:32:53,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:53,219 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:32:53,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:53,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:32:53,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021042521] [2021-03-25 09:32:53,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:53,221 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:32:53,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721319706] [2021-03-25 09:32:53,221 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:32:53,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:53,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:32:53,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:32:53,222 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 125 [2021-03-25 09:32:53,222 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 465 places, 623 transitions, 18586 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:53,222 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:53,222 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 125 [2021-03-25 09:32:53,222 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:54,010 INFO L129 PetriNetUnfolder]: 598/1426 cut-off events. [2021-03-25 09:32:54,010 INFO L130 PetriNetUnfolder]: For 62818/62824 co-relation queries the response was YES. [2021-03-25 09:32:54,028 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16722 conditions, 1426 events. 598/1426 cut-off events. For 62818/62824 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 10066 event pairs, 6 based on Foata normal form. 7/1254 useless extension candidates. Maximal degree in co-relation 16514. Up to 764 conditions per place. [2021-03-25 09:32:54,034 INFO L132 encePairwiseOnDemand]: 106/125 looper letters, 464 selfloop transitions, 132 changer transitions 23/637 dead transitions. [2021-03-25 09:32:54,034 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 482 places, 637 transitions, 19924 flow [2021-03-25 09:32:54,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-25 09:32:54,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-25 09:32:54,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 964 transitions. [2021-03-25 09:32:54,035 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.42844444444444446 [2021-03-25 09:32:54,036 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 964 transitions. [2021-03-25 09:32:54,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 964 transitions. [2021-03-25 09:32:54,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:54,036 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 964 transitions. [2021-03-25 09:32:54,036 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 53.55555555555556) internal successors, (964), 18 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:54,037 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 125.0) internal successors, (2375), 19 states have internal predecessors, (2375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:54,037 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 125.0) internal successors, (2375), 19 states have internal predecessors, (2375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:54,037 INFO L185 Difference]: Start difference. First operand has 465 places, 623 transitions, 18586 flow. Second operand 18 states and 964 transitions. [2021-03-25 09:32:54,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 482 places, 637 transitions, 19924 flow [2021-03-25 09:32:54,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 637 transitions, 19385 flow, removed 172 selfloop flow, removed 11 redundant places. [2021-03-25 09:32:54,579 INFO L241 Difference]: Finished difference. Result has 473 places, 601 transitions, 17545 flow [2021-03-25 09:32:54,579 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=18047, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=623, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=132, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=491, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=17545, PETRI_PLACES=473, PETRI_TRANSITIONS=601} [2021-03-25 09:32:54,579 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 412 predicate places. [2021-03-25 09:32:54,580 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:54,580 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 473 places, 601 transitions, 17545 flow [2021-03-25 09:32:54,580 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 473 places, 601 transitions, 17545 flow [2021-03-25 09:32:54,585 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 467 places, 601 transitions, 17545 flow [2021-03-25 09:32:54,809 INFO L129 PetriNetUnfolder]: 544/1324 cut-off events. [2021-03-25 09:32:54,810 INFO L130 PetriNetUnfolder]: For 61433/61441 co-relation queries the response was YES. [2021-03-25 09:32:54,826 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14869 conditions, 1324 events. 544/1324 cut-off events. For 61433/61441 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 9480 event pairs, 8 based on Foata normal form. 2/1147 useless extension candidates. Maximal degree in co-relation 14673. Up to 300 conditions per place. [2021-03-25 09:32:54,842 INFO L142 LiptonReduction]: Number of co-enabled transitions 2236 [2021-03-25 09:32:54,974 INFO L154 LiptonReduction]: Checked pairs total: 8 [2021-03-25 09:32:54,975 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 09:32:54,975 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 395 [2021-03-25 09:32:54,975 INFO L480 AbstractCegarLoop]: Abstraction has has 467 places, 601 transitions, 17565 flow [2021-03-25 09:32:54,975 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:54,975 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:54,975 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:32:54,975 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2021-03-25 09:32:54,975 INFO L428 AbstractCegarLoop]: === Iteration 136 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:32:54,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:54,975 INFO L82 PathProgramCache]: Analyzing trace with hash -561437601, now seen corresponding path program 62 times [2021-03-25 09:32:54,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:54,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209636924] [2021-03-25 09:32:54,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:54,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:54,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:54,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:54,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:54,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:32:54,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:54,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:54,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:54,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:55,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:55,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:55,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:55,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:55,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:55,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:55,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:55,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:55,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:55,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:55,038 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:32:55,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:55,051 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:32:55,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:55,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:32:55,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209636924] [2021-03-25 09:32:55,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:55,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:32:55,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682842366] [2021-03-25 09:32:55,054 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:32:55,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:55,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:32:55,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:32:55,055 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 127 [2021-03-25 09:32:55,055 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 601 transitions, 17565 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:55,055 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:55,055 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 127 [2021-03-25 09:32:55,055 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:55,700 INFO L129 PetriNetUnfolder]: 585/1387 cut-off events. [2021-03-25 09:32:55,700 INFO L130 PetriNetUnfolder]: For 62018/62031 co-relation queries the response was YES. [2021-03-25 09:32:55,714 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16158 conditions, 1387 events. 585/1387 cut-off events. For 62018/62031 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 9712 event pairs, 18 based on Foata normal form. 14/1227 useless extension candidates. Maximal degree in co-relation 15949. Up to 776 conditions per place. [2021-03-25 09:32:55,720 INFO L132 encePairwiseOnDemand]: 106/127 looper letters, 488 selfloop transitions, 103 changer transitions 0/609 dead transitions. [2021-03-25 09:32:55,720 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 478 places, 609 transitions, 18808 flow [2021-03-25 09:32:55,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:32:55,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:32:55,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 646 transitions. [2021-03-25 09:32:55,721 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4238845144356955 [2021-03-25 09:32:55,721 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 646 transitions. [2021-03-25 09:32:55,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 646 transitions. [2021-03-25 09:32:55,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:55,721 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 646 transitions. [2021-03-25 09:32:55,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 53.833333333333336) internal successors, (646), 12 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:55,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 127.0) internal successors, (1651), 13 states have internal predecessors, (1651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:55,722 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 127.0) internal successors, (1651), 13 states have internal predecessors, (1651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:55,722 INFO L185 Difference]: Start difference. First operand has 467 places, 601 transitions, 17565 flow. Second operand 12 states and 646 transitions. [2021-03-25 09:32:55,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 478 places, 609 transitions, 18808 flow [2021-03-25 09:32:56,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 609 transitions, 18364 flow, removed 25 selfloop flow, removed 27 redundant places. [2021-03-25 09:32:56,230 INFO L241 Difference]: Finished difference. Result has 453 places, 602 transitions, 17354 flow [2021-03-25 09:32:56,230 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=17123, PETRI_DIFFERENCE_MINUEND_PLACES=440, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=601, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=102, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=498, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=17354, PETRI_PLACES=453, PETRI_TRANSITIONS=602} [2021-03-25 09:32:56,230 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 392 predicate places. [2021-03-25 09:32:56,230 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:56,230 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 453 places, 602 transitions, 17354 flow [2021-03-25 09:32:56,230 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 453 places, 602 transitions, 17354 flow [2021-03-25 09:32:56,235 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 453 places, 602 transitions, 17354 flow [2021-03-25 09:32:56,441 INFO L129 PetriNetUnfolder]: 544/1323 cut-off events. [2021-03-25 09:32:56,441 INFO L130 PetriNetUnfolder]: For 60592/60599 co-relation queries the response was YES. [2021-03-25 09:32:56,456 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14653 conditions, 1323 events. 544/1323 cut-off events. For 60592/60599 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 9466 event pairs, 8 based on Foata normal form. 1/1145 useless extension candidates. Maximal degree in co-relation 14448. Up to 299 conditions per place. [2021-03-25 09:32:56,470 INFO L142 LiptonReduction]: Number of co-enabled transitions 2246 [2021-03-25 09:32:56,510 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:32:56,510 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:32:56,510 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 280 [2021-03-25 09:32:56,510 INFO L480 AbstractCegarLoop]: Abstraction has has 453 places, 602 transitions, 17354 flow [2021-03-25 09:32:56,510 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:56,510 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:56,510 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:32:56,510 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2021-03-25 09:32:56,510 INFO L428 AbstractCegarLoop]: === Iteration 137 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:32:56,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:56,510 INFO L82 PathProgramCache]: Analyzing trace with hash -2117924994, now seen corresponding path program 1 times [2021-03-25 09:32:56,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:56,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824095321] [2021-03-25 09:32:56,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:56,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:56,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:56,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:56,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:56,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:32:56,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:56,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:56,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:56,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:56,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:56,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:56,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:56,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:56,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:56,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:56,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:56,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:56,571 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:32:56,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:56,584 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:32:56,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:56,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:32:56,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824095321] [2021-03-25 09:32:56,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:56,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:32:56,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068575493] [2021-03-25 09:32:56,587 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:32:56,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:56,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:32:56,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:32:56,587 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 127 [2021-03-25 09:32:56,587 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 602 transitions, 17354 flow. Second operand has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:56,587 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:56,588 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 127 [2021-03-25 09:32:56,588 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:57,182 INFO L129 PetriNetUnfolder]: 600/1435 cut-off events. [2021-03-25 09:32:57,182 INFO L130 PetriNetUnfolder]: For 62005/62009 co-relation queries the response was YES. [2021-03-25 09:32:57,199 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16191 conditions, 1435 events. 600/1435 cut-off events. For 62005/62009 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 10201 event pairs, 18 based on Foata normal form. 5/1253 useless extension candidates. Maximal degree in co-relation 15982. Up to 748 conditions per place. [2021-03-25 09:32:57,205 INFO L132 encePairwiseOnDemand]: 109/127 looper letters, 434 selfloop transitions, 105 changer transitions 67/624 dead transitions. [2021-03-25 09:32:57,205 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 462 places, 624 transitions, 18979 flow [2021-03-25 09:32:57,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:32:57,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:32:57,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 561 transitions. [2021-03-25 09:32:57,206 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44173228346456694 [2021-03-25 09:32:57,206 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 561 transitions. [2021-03-25 09:32:57,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 561 transitions. [2021-03-25 09:32:57,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:57,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 561 transitions. [2021-03-25 09:32:57,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 56.1) internal successors, (561), 10 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:57,207 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 127.0) internal successors, (1397), 11 states have internal predecessors, (1397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:57,207 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 127.0) internal successors, (1397), 11 states have internal predecessors, (1397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:57,207 INFO L185 Difference]: Start difference. First operand has 453 places, 602 transitions, 17354 flow. Second operand 10 states and 561 transitions. [2021-03-25 09:32:57,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 462 places, 624 transitions, 18979 flow [2021-03-25 09:32:57,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 624 transitions, 18765 flow, removed 6 selfloop flow, removed 9 redundant places. [2021-03-25 09:32:57,690 INFO L241 Difference]: Finished difference. Result has 460 places, 549 transitions, 15971 flow [2021-03-25 09:32:57,691 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=17140, PETRI_DIFFERENCE_MINUEND_PLACES=444, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=602, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=105, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=497, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=15971, PETRI_PLACES=460, PETRI_TRANSITIONS=549} [2021-03-25 09:32:57,691 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 399 predicate places. [2021-03-25 09:32:57,691 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:57,691 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 460 places, 549 transitions, 15971 flow [2021-03-25 09:32:57,691 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 460 places, 549 transitions, 15971 flow [2021-03-25 09:32:57,696 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 449 places, 549 transitions, 15971 flow [2021-03-25 09:32:57,900 INFO L129 PetriNetUnfolder]: 505/1194 cut-off events. [2021-03-25 09:32:57,900 INFO L130 PetriNetUnfolder]: For 59703/59710 co-relation queries the response was YES. [2021-03-25 09:32:57,915 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13927 conditions, 1194 events. 505/1194 cut-off events. For 59703/59710 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 8068 event pairs, 8 based on Foata normal form. 1/1039 useless extension candidates. Maximal degree in co-relation 13742. Up to 287 conditions per place. [2021-03-25 09:32:57,930 INFO L142 LiptonReduction]: Number of co-enabled transitions 1888 [2021-03-25 09:32:58,078 INFO L154 LiptonReduction]: Checked pairs total: 8 [2021-03-25 09:32:58,078 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 09:32:58,078 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 387 [2021-03-25 09:32:58,078 INFO L480 AbstractCegarLoop]: Abstraction has has 449 places, 549 transitions, 15999 flow [2021-03-25 09:32:58,078 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:58,078 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:58,078 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:32:58,078 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2021-03-25 09:32:58,078 INFO L428 AbstractCegarLoop]: === Iteration 138 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:32:58,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:58,079 INFO L82 PathProgramCache]: Analyzing trace with hash 2084363363, now seen corresponding path program 63 times [2021-03-25 09:32:58,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:58,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353591682] [2021-03-25 09:32:58,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:58,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:58,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:58,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:58,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:58,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:32:58,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:58,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:58,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:58,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:58,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:58,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:58,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:58,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:58,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:58,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:32:58,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:58,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:58,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:58,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:58,166 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:32:58,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:58,180 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:32:58,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:58,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:32:58,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353591682] [2021-03-25 09:32:58,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:58,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:32:58,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25481748] [2021-03-25 09:32:58,182 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:32:58,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:58,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:32:58,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:32:58,183 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 130 [2021-03-25 09:32:58,183 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 549 transitions, 15999 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:58,183 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:58,183 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 130 [2021-03-25 09:32:58,183 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:32:58,938 INFO L129 PetriNetUnfolder]: 555/1295 cut-off events. [2021-03-25 09:32:58,939 INFO L130 PetriNetUnfolder]: For 62294/62298 co-relation queries the response was YES. [2021-03-25 09:32:58,952 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15266 conditions, 1295 events. 555/1295 cut-off events. For 62294/62298 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 8755 event pairs, 6 based on Foata normal form. 6/1135 useless extension candidates. Maximal degree in co-relation 15079. Up to 669 conditions per place. [2021-03-25 09:32:58,957 INFO L132 encePairwiseOnDemand]: 110/130 looper letters, 368 selfloop transitions, 157 changer transitions 20/563 dead transitions. [2021-03-25 09:32:58,958 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 563 transitions, 17381 flow [2021-03-25 09:32:58,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 09:32:58,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 09:32:58,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 854 transitions. [2021-03-25 09:32:58,959 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.41057692307692306 [2021-03-25 09:32:58,959 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 854 transitions. [2021-03-25 09:32:58,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 854 transitions. [2021-03-25 09:32:58,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:32:58,959 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 854 transitions. [2021-03-25 09:32:58,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 53.375) internal successors, (854), 16 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:58,960 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 130.0) internal successors, (2210), 17 states have internal predecessors, (2210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:58,960 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 130.0) internal successors, (2210), 17 states have internal predecessors, (2210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:58,960 INFO L185 Difference]: Start difference. First operand has 449 places, 549 transitions, 15999 flow. Second operand 16 states and 854 transitions. [2021-03-25 09:32:58,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 563 transitions, 17381 flow [2021-03-25 09:32:59,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 563 transitions, 16337 flow, removed 164 selfloop flow, removed 38 redundant places. [2021-03-25 09:32:59,403 INFO L241 Difference]: Finished difference. Result has 428 places, 534 transitions, 14994 flow [2021-03-25 09:32:59,404 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=14959, PETRI_DIFFERENCE_MINUEND_PLACES=411, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=549, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=154, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=14994, PETRI_PLACES=428, PETRI_TRANSITIONS=534} [2021-03-25 09:32:59,404 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 367 predicate places. [2021-03-25 09:32:59,404 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:32:59,404 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 428 places, 534 transitions, 14994 flow [2021-03-25 09:32:59,404 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 428 places, 534 transitions, 14994 flow [2021-03-25 09:32:59,409 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 426 places, 534 transitions, 14994 flow [2021-03-25 09:32:59,601 INFO L129 PetriNetUnfolder]: 490/1187 cut-off events. [2021-03-25 09:32:59,602 INFO L130 PetriNetUnfolder]: For 56653/56661 co-relation queries the response was YES. [2021-03-25 09:32:59,615 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13259 conditions, 1187 events. 490/1187 cut-off events. For 56653/56661 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 8118 event pairs, 8 based on Foata normal form. 3/1033 useless extension candidates. Maximal degree in co-relation 13076. Up to 275 conditions per place. [2021-03-25 09:32:59,630 INFO L142 LiptonReduction]: Number of co-enabled transitions 1894 [2021-03-25 09:32:59,662 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:32:59,663 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:32:59,663 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 259 [2021-03-25 09:32:59,663 INFO L480 AbstractCegarLoop]: Abstraction has has 426 places, 534 transitions, 14994 flow [2021-03-25 09:32:59,663 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:59,663 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:32:59,663 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:32:59,663 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2021-03-25 09:32:59,663 INFO L428 AbstractCegarLoop]: === Iteration 139 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:32:59,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:32:59,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1815503920, now seen corresponding path program 1 times [2021-03-25 09:32:59,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:32:59,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947682474] [2021-03-25 09:32:59,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:32:59,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:32:59,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:59,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:32:59,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:59,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:32:59,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:59,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:59,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:59,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:59,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:59,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:59,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:59,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:59,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:59,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:59,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:32:59,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:32:59,738 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:32:59,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:32:59,751 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:32:59,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:32:59,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:32:59,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947682474] [2021-03-25 09:32:59,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:32:59,754 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:32:59,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003334206] [2021-03-25 09:32:59,754 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:32:59,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:32:59,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:32:59,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:32:59,754 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 130 [2021-03-25 09:32:59,755 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 534 transitions, 14994 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:32:59,755 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:32:59,755 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 130 [2021-03-25 09:32:59,755 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:33:00,365 INFO L129 PetriNetUnfolder]: 541/1259 cut-off events. [2021-03-25 09:33:00,365 INFO L130 PetriNetUnfolder]: For 59223/59236 co-relation queries the response was YES. [2021-03-25 09:33:00,380 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14573 conditions, 1259 events. 541/1259 cut-off events. For 59223/59236 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 8405 event pairs, 16 based on Foata normal form. 14/1114 useless extension candidates. Maximal degree in co-relation 14379. Up to 706 conditions per place. [2021-03-25 09:33:00,386 INFO L132 encePairwiseOnDemand]: 112/130 looper letters, 438 selfloop transitions, 94 changer transitions 0/550 dead transitions. [2021-03-25 09:33:00,386 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 550 transitions, 16507 flow [2021-03-25 09:33:00,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:33:00,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:33:00,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 656 transitions. [2021-03-25 09:33:00,387 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4205128205128205 [2021-03-25 09:33:00,387 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 656 transitions. [2021-03-25 09:33:00,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 656 transitions. [2021-03-25 09:33:00,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:33:00,387 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 656 transitions. [2021-03-25 09:33:00,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 54.666666666666664) internal successors, (656), 12 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:00,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 130.0) internal successors, (1690), 13 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:00,388 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 130.0) internal successors, (1690), 13 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:00,388 INFO L185 Difference]: Start difference. First operand has 426 places, 534 transitions, 14994 flow. Second operand 12 states and 656 transitions. [2021-03-25 09:33:00,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 550 transitions, 16507 flow [2021-03-25 09:33:00,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 550 transitions, 15746 flow, removed 230 selfloop flow, removed 15 redundant places. [2021-03-25 09:33:00,776 INFO L241 Difference]: Finished difference. Result has 425 places, 538 transitions, 14799 flow [2021-03-25 09:33:00,776 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=14248, PETRI_DIFFERENCE_MINUEND_PLACES=411, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=534, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=441, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=14799, PETRI_PLACES=425, PETRI_TRANSITIONS=538} [2021-03-25 09:33:00,776 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 364 predicate places. [2021-03-25 09:33:00,776 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:33:00,776 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 425 places, 538 transitions, 14799 flow [2021-03-25 09:33:00,776 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 425 places, 538 transitions, 14799 flow [2021-03-25 09:33:00,781 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 425 places, 538 transitions, 14799 flow [2021-03-25 09:33:00,969 INFO L129 PetriNetUnfolder]: 490/1179 cut-off events. [2021-03-25 09:33:00,969 INFO L130 PetriNetUnfolder]: For 55297/55300 co-relation queries the response was YES. [2021-03-25 09:33:00,983 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12927 conditions, 1179 events. 490/1179 cut-off events. For 55297/55300 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 8079 event pairs, 5 based on Foata normal form. 1/1027 useless extension candidates. Maximal degree in co-relation 12747. Up to 274 conditions per place. [2021-03-25 09:33:00,998 INFO L142 LiptonReduction]: Number of co-enabled transitions 1934 [2021-03-25 09:33:01,032 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:33:01,032 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:33:01,032 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 256 [2021-03-25 09:33:01,032 INFO L480 AbstractCegarLoop]: Abstraction has has 425 places, 538 transitions, 14799 flow [2021-03-25 09:33:01,032 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:01,032 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:33:01,032 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:33:01,032 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2021-03-25 09:33:01,032 INFO L428 AbstractCegarLoop]: === Iteration 140 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:33:01,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:33:01,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1381790244, now seen corresponding path program 2 times [2021-03-25 09:33:01,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:33:01,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662399078] [2021-03-25 09:33:01,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:33:01,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:33:01,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:01,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:33:01,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:01,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:33:01,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:01,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:01,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:01,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:01,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:01,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:01,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:01,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:01,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:01,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:01,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:01,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:01,107 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:33:01,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:33:01,121 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:33:01,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:01,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:33:01,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662399078] [2021-03-25 09:33:01,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:33:01,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:33:01,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94376557] [2021-03-25 09:33:01,123 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:33:01,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:33:01,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:33:01,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:33:01,124 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 130 [2021-03-25 09:33:01,124 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 538 transitions, 14799 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:01,124 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:33:01,124 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 130 [2021-03-25 09:33:01,124 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:33:01,729 INFO L129 PetriNetUnfolder]: 540/1261 cut-off events. [2021-03-25 09:33:01,729 INFO L130 PetriNetUnfolder]: For 54882/54895 co-relation queries the response was YES. [2021-03-25 09:33:01,744 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14229 conditions, 1261 events. 540/1261 cut-off events. For 54882/54895 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 8449 event pairs, 17 based on Foata normal form. 10/1112 useless extension candidates. Maximal degree in co-relation 14038. Up to 736 conditions per place. [2021-03-25 09:33:01,749 INFO L132 encePairwiseOnDemand]: 116/130 looper letters, 457 selfloop transitions, 59 changer transitions 14/548 dead transitions. [2021-03-25 09:33:01,749 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 548 transitions, 16022 flow [2021-03-25 09:33:01,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:33:01,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:33:01,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 647 transitions. [2021-03-25 09:33:01,750 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.41474358974358977 [2021-03-25 09:33:01,750 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 647 transitions. [2021-03-25 09:33:01,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 647 transitions. [2021-03-25 09:33:01,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:33:01,751 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 647 transitions. [2021-03-25 09:33:01,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 53.916666666666664) internal successors, (647), 12 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:01,752 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 130.0) internal successors, (1690), 13 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:01,752 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 130.0) internal successors, (1690), 13 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:01,752 INFO L185 Difference]: Start difference. First operand has 425 places, 538 transitions, 14799 flow. Second operand 12 states and 647 transitions. [2021-03-25 09:33:01,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 548 transitions, 16022 flow [2021-03-25 09:33:02,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 431 places, 548 transitions, 15910 flow, removed 34 selfloop flow, removed 5 redundant places. [2021-03-25 09:33:02,169 INFO L241 Difference]: Finished difference. Result has 433 places, 525 transitions, 14625 flow [2021-03-25 09:33:02,169 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=14687, PETRI_DIFFERENCE_MINUEND_PLACES=420, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=538, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=479, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=14625, PETRI_PLACES=433, PETRI_TRANSITIONS=525} [2021-03-25 09:33:02,169 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 372 predicate places. [2021-03-25 09:33:02,169 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:33:02,169 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 433 places, 525 transitions, 14625 flow [2021-03-25 09:33:02,169 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 433 places, 525 transitions, 14625 flow [2021-03-25 09:33:02,174 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 431 places, 525 transitions, 14625 flow [2021-03-25 09:33:02,403 INFO L129 PetriNetUnfolder]: 484/1161 cut-off events. [2021-03-25 09:33:02,403 INFO L130 PetriNetUnfolder]: For 54621/54624 co-relation queries the response was YES. [2021-03-25 09:33:02,415 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12866 conditions, 1161 events. 484/1161 cut-off events. For 54621/54624 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 7912 event pairs, 8 based on Foata normal form. 1/1010 useless extension candidates. Maximal degree in co-relation 12683. Up to 267 conditions per place. [2021-03-25 09:33:02,429 INFO L142 LiptonReduction]: Number of co-enabled transitions 1782 [2021-03-25 09:33:02,458 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:33:02,459 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:33:02,459 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 290 [2021-03-25 09:33:02,459 INFO L480 AbstractCegarLoop]: Abstraction has has 431 places, 525 transitions, 14625 flow [2021-03-25 09:33:02,459 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:02,459 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:33:02,459 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:33:02,459 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2021-03-25 09:33:02,459 INFO L428 AbstractCegarLoop]: === Iteration 141 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:33:02,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:33:02,459 INFO L82 PathProgramCache]: Analyzing trace with hash -790920006, now seen corresponding path program 3 times [2021-03-25 09:33:02,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:33:02,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997998187] [2021-03-25 09:33:02,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:33:02,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:33:02,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:02,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:33:02,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:02,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:33:02,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:02,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:02,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:02,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:02,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:02,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:02,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:02,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:02,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:02,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:02,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:02,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:02,523 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:33:02,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:33:02,537 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:33:02,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:02,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:33:02,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997998187] [2021-03-25 09:33:02,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:33:02,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:33:02,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765787096] [2021-03-25 09:33:02,540 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:33:02,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:33:02,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:33:02,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:33:02,541 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 130 [2021-03-25 09:33:02,541 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 431 places, 525 transitions, 14625 flow. Second operand has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:02,541 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:33:02,541 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 130 [2021-03-25 09:33:02,541 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:33:03,075 INFO L129 PetriNetUnfolder]: 538/1256 cut-off events. [2021-03-25 09:33:03,075 INFO L130 PetriNetUnfolder]: For 55499/55503 co-relation queries the response was YES. [2021-03-25 09:33:03,090 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14471 conditions, 1256 events. 538/1256 cut-off events. For 55499/55503 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 8408 event pairs, 17 based on Foata normal form. 5/1102 useless extension candidates. Maximal degree in co-relation 14277. Up to 725 conditions per place. [2021-03-25 09:33:03,096 INFO L132 encePairwiseOnDemand]: 114/130 looper letters, 457 selfloop transitions, 69 changer transitions 0/544 dead transitions. [2021-03-25 09:33:03,096 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 544 transitions, 16292 flow [2021-03-25 09:33:03,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:33:03,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:33:03,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 599 transitions. [2021-03-25 09:33:03,097 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4188811188811189 [2021-03-25 09:33:03,097 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 599 transitions. [2021-03-25 09:33:03,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 599 transitions. [2021-03-25 09:33:03,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:33:03,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 599 transitions. [2021-03-25 09:33:03,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 54.45454545454545) internal successors, (599), 11 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:03,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 130.0) internal successors, (1560), 12 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:03,098 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 130.0) internal successors, (1560), 12 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:03,098 INFO L185 Difference]: Start difference. First operand has 431 places, 525 transitions, 14625 flow. Second operand 11 states and 599 transitions. [2021-03-25 09:33:03,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 544 transitions, 16292 flow [2021-03-25 09:33:03,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 544 transitions, 15806 flow, removed 62 selfloop flow, removed 16 redundant places. [2021-03-25 09:33:03,523 INFO L241 Difference]: Finished difference. Result has 428 places, 533 transitions, 14817 flow [2021-03-25 09:33:03,523 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=14158, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=525, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=456, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=14817, PETRI_PLACES=428, PETRI_TRANSITIONS=533} [2021-03-25 09:33:03,524 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 367 predicate places. [2021-03-25 09:33:03,524 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:33:03,524 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 428 places, 533 transitions, 14817 flow [2021-03-25 09:33:03,524 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 428 places, 533 transitions, 14817 flow [2021-03-25 09:33:03,528 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 428 places, 533 transitions, 14817 flow [2021-03-25 09:33:03,728 INFO L129 PetriNetUnfolder]: 498/1205 cut-off events. [2021-03-25 09:33:03,728 INFO L130 PetriNetUnfolder]: For 54299/54302 co-relation queries the response was YES. [2021-03-25 09:33:03,743 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13101 conditions, 1205 events. 498/1205 cut-off events. For 54299/54302 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 8322 event pairs, 8 based on Foata normal form. 1/1043 useless extension candidates. Maximal degree in co-relation 12918. Up to 269 conditions per place. [2021-03-25 09:33:03,758 INFO L142 LiptonReduction]: Number of co-enabled transitions 1808 [2021-03-25 09:33:03,791 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:33:03,791 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:33:03,791 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 267 [2021-03-25 09:33:03,792 INFO L480 AbstractCegarLoop]: Abstraction has has 428 places, 533 transitions, 14817 flow [2021-03-25 09:33:03,792 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:03,792 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:33:03,792 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:33:03,792 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2021-03-25 09:33:03,792 INFO L428 AbstractCegarLoop]: === Iteration 142 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:33:03,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:33:03,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1668139116, now seen corresponding path program 4 times [2021-03-25 09:33:03,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:33:03,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978814789] [2021-03-25 09:33:03,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:33:03,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:33:03,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:03,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:33:03,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:03,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:33:03,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:03,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:03,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:03,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:03,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:03,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:03,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:03,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:03,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:03,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:03,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:03,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:03,868 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:33:03,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:33:03,882 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:33:03,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:03,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:33:03,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978814789] [2021-03-25 09:33:03,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:33:03,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:33:03,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547826652] [2021-03-25 09:33:03,885 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:33:03,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:33:03,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:33:03,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:33:03,885 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 130 [2021-03-25 09:33:03,885 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 533 transitions, 14817 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:03,885 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:33:03,886 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 130 [2021-03-25 09:33:03,886 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:33:04,503 INFO L129 PetriNetUnfolder]: 548/1292 cut-off events. [2021-03-25 09:33:04,503 INFO L130 PetriNetUnfolder]: For 55701/55705 co-relation queries the response was YES. [2021-03-25 09:33:04,519 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14502 conditions, 1292 events. 548/1292 cut-off events. For 55701/55705 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 8761 event pairs, 16 based on Foata normal form. 5/1127 useless extension candidates. Maximal degree in co-relation 14308. Up to 707 conditions per place. [2021-03-25 09:33:04,525 INFO L132 encePairwiseOnDemand]: 114/130 looper letters, 436 selfloop transitions, 97 changer transitions 0/551 dead transitions. [2021-03-25 09:33:04,525 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 439 places, 551 transitions, 16296 flow [2021-03-25 09:33:04,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:33:04,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:33:04,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 651 transitions. [2021-03-25 09:33:04,526 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4173076923076923 [2021-03-25 09:33:04,526 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 651 transitions. [2021-03-25 09:33:04,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 651 transitions. [2021-03-25 09:33:04,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:33:04,527 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 651 transitions. [2021-03-25 09:33:04,527 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 54.25) internal successors, (651), 12 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:04,528 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 130.0) internal successors, (1690), 13 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:04,528 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 130.0) internal successors, (1690), 13 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:04,528 INFO L185 Difference]: Start difference. First operand has 428 places, 533 transitions, 14817 flow. Second operand 12 states and 651 transitions. [2021-03-25 09:33:04,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 439 places, 551 transitions, 16296 flow [2021-03-25 09:33:04,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 433 places, 551 transitions, 16096 flow, removed 42 selfloop flow, removed 6 redundant places. [2021-03-25 09:33:04,973 INFO L241 Difference]: Finished difference. Result has 436 places, 539 transitions, 15155 flow [2021-03-25 09:33:04,974 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=14617, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=533, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=15155, PETRI_PLACES=436, PETRI_TRANSITIONS=539} [2021-03-25 09:33:04,974 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 375 predicate places. [2021-03-25 09:33:04,974 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:33:04,974 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 436 places, 539 transitions, 15155 flow [2021-03-25 09:33:04,974 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 436 places, 539 transitions, 15155 flow [2021-03-25 09:33:04,979 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 436 places, 539 transitions, 15155 flow [2021-03-25 09:33:05,189 INFO L129 PetriNetUnfolder]: 496/1212 cut-off events. [2021-03-25 09:33:05,189 INFO L130 PetriNetUnfolder]: For 55667/55693 co-relation queries the response was YES. [2021-03-25 09:33:05,204 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13225 conditions, 1212 events. 496/1212 cut-off events. For 55667/55693 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 8435 event pairs, 4 based on Foata normal form. 4/1049 useless extension candidates. Maximal degree in co-relation 13040. Up to 268 conditions per place. [2021-03-25 09:33:05,220 INFO L142 LiptonReduction]: Number of co-enabled transitions 1834 [2021-03-25 09:33:05,254 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:33:05,254 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:33:05,254 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 280 [2021-03-25 09:33:05,254 INFO L480 AbstractCegarLoop]: Abstraction has has 436 places, 539 transitions, 15155 flow [2021-03-25 09:33:05,254 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:05,254 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:33:05,254 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:33:05,254 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2021-03-25 09:33:05,254 INFO L428 AbstractCegarLoop]: === Iteration 143 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:33:05,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:33:05,255 INFO L82 PathProgramCache]: Analyzing trace with hash -1388256664, now seen corresponding path program 5 times [2021-03-25 09:33:05,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:33:05,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884988790] [2021-03-25 09:33:05,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:33:05,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:33:05,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:05,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:33:05,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:05,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:33:05,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:05,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:05,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:05,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:05,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:05,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:05,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:05,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:05,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:05,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:05,307 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:33:05,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:33:05,320 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:33:05,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:33:05,334 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:33:05,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:05,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:33:05,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884988790] [2021-03-25 09:33:05,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:33:05,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:33:05,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144313494] [2021-03-25 09:33:05,337 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:33:05,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:33:05,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:33:05,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:33:05,338 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 130 [2021-03-25 09:33:05,338 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 539 transitions, 15155 flow. Second operand has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:05,338 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:33:05,338 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 130 [2021-03-25 09:33:05,338 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:33:05,987 INFO L129 PetriNetUnfolder]: 556/1314 cut-off events. [2021-03-25 09:33:05,987 INFO L130 PetriNetUnfolder]: For 57605/57609 co-relation queries the response was YES. [2021-03-25 09:33:06,001 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14689 conditions, 1314 events. 556/1314 cut-off events. For 57605/57609 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 8970 event pairs, 16 based on Foata normal form. 5/1143 useless extension candidates. Maximal degree in co-relation 14493. Up to 737 conditions per place. [2021-03-25 09:33:06,007 INFO L132 encePairwiseOnDemand]: 114/130 looper letters, 463 selfloop transitions, 71 changer transitions 3/555 dead transitions. [2021-03-25 09:33:06,007 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 555 transitions, 16539 flow [2021-03-25 09:33:06,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:33:06,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:33:06,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 598 transitions. [2021-03-25 09:33:06,008 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.41818181818181815 [2021-03-25 09:33:06,008 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 598 transitions. [2021-03-25 09:33:06,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 598 transitions. [2021-03-25 09:33:06,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:33:06,008 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 598 transitions. [2021-03-25 09:33:06,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 54.36363636363637) internal successors, (598), 11 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:06,009 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 130.0) internal successors, (1560), 12 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:06,009 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 130.0) internal successors, (1560), 12 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:06,009 INFO L185 Difference]: Start difference. First operand has 436 places, 539 transitions, 15155 flow. Second operand 11 states and 598 transitions. [2021-03-25 09:33:06,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 555 transitions, 16539 flow [2021-03-25 09:33:06,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 555 transitions, 16352 flow, removed 52 selfloop flow, removed 7 redundant places. [2021-03-25 09:33:06,445 INFO L241 Difference]: Finished difference. Result has 441 places, 543 transitions, 15293 flow [2021-03-25 09:33:06,445 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=14968, PETRI_DIFFERENCE_MINUEND_PLACES=429, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=539, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=468, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=15293, PETRI_PLACES=441, PETRI_TRANSITIONS=543} [2021-03-25 09:33:06,445 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 380 predicate places. [2021-03-25 09:33:06,445 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:33:06,445 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 441 places, 543 transitions, 15293 flow [2021-03-25 09:33:06,445 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 441 places, 543 transitions, 15293 flow [2021-03-25 09:33:06,450 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 441 places, 543 transitions, 15293 flow [2021-03-25 09:33:06,653 INFO L129 PetriNetUnfolder]: 499/1217 cut-off events. [2021-03-25 09:33:06,653 INFO L130 PetriNetUnfolder]: For 55726/55730 co-relation queries the response was YES. [2021-03-25 09:33:06,667 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13304 conditions, 1217 events. 499/1217 cut-off events. For 55726/55730 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 8495 event pairs, 4 based on Foata normal form. 2/1054 useless extension candidates. Maximal degree in co-relation 13118. Up to 270 conditions per place. [2021-03-25 09:33:06,682 INFO L142 LiptonReduction]: Number of co-enabled transitions 1862 [2021-03-25 09:33:06,716 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:33:06,716 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:33:06,717 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 272 [2021-03-25 09:33:06,717 INFO L480 AbstractCegarLoop]: Abstraction has has 441 places, 543 transitions, 15293 flow [2021-03-25 09:33:06,717 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:06,717 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:33:06,717 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:33:06,717 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2021-03-25 09:33:06,717 INFO L428 AbstractCegarLoop]: === Iteration 144 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:33:06,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:33:06,717 INFO L82 PathProgramCache]: Analyzing trace with hash 2109684334, now seen corresponding path program 6 times [2021-03-25 09:33:06,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:33:06,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404054137] [2021-03-25 09:33:06,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:33:06,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:33:06,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:06,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:33:06,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:06,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:33:06,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:06,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:06,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:06,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:06,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:06,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:06,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:06,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:06,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:06,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:06,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:06,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:06,782 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:33:06,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:33:06,796 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:33:06,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:06,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:33:06,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404054137] [2021-03-25 09:33:06,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:33:06,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:33:06,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812679881] [2021-03-25 09:33:06,799 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:33:06,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:33:06,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:33:06,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:33:06,799 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 130 [2021-03-25 09:33:06,800 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 543 transitions, 15293 flow. Second operand has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:06,800 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:33:06,800 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 130 [2021-03-25 09:33:06,800 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:33:07,398 INFO L129 PetriNetUnfolder]: 555/1303 cut-off events. [2021-03-25 09:33:07,398 INFO L130 PetriNetUnfolder]: For 57870/57874 co-relation queries the response was YES. [2021-03-25 09:33:07,414 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14898 conditions, 1303 events. 555/1303 cut-off events. For 57870/57874 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 8831 event pairs, 16 based on Foata normal form. 5/1138 useless extension candidates. Maximal degree in co-relation 14701. Up to 744 conditions per place. [2021-03-25 09:33:07,420 INFO L132 encePairwiseOnDemand]: 111/130 looper letters, 474 selfloop transitions, 64 changer transitions 7/563 dead transitions. [2021-03-25 09:33:07,420 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 563 transitions, 17103 flow [2021-03-25 09:33:07,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:33:07,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:33:07,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 652 transitions. [2021-03-25 09:33:07,421 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.41794871794871796 [2021-03-25 09:33:07,421 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 652 transitions. [2021-03-25 09:33:07,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 652 transitions. [2021-03-25 09:33:07,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:33:07,422 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 652 transitions. [2021-03-25 09:33:07,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 54.333333333333336) internal successors, (652), 12 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:07,423 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 130.0) internal successors, (1690), 13 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:07,423 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 130.0) internal successors, (1690), 13 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:07,423 INFO L185 Difference]: Start difference. First operand has 441 places, 543 transitions, 15293 flow. Second operand 12 states and 652 transitions. [2021-03-25 09:33:07,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 563 transitions, 17103 flow [2021-03-25 09:33:07,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 563 transitions, 16929 flow, removed 48 selfloop flow, removed 7 redundant places. [2021-03-25 09:33:07,883 INFO L241 Difference]: Finished difference. Result has 449 places, 547 transitions, 15738 flow [2021-03-25 09:33:07,883 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=15119, PETRI_DIFFERENCE_MINUEND_PLACES=434, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=543, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=479, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=15738, PETRI_PLACES=449, PETRI_TRANSITIONS=547} [2021-03-25 09:33:07,883 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 388 predicate places. [2021-03-25 09:33:07,883 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:33:07,883 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 449 places, 547 transitions, 15738 flow [2021-03-25 09:33:07,884 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 449 places, 547 transitions, 15738 flow [2021-03-25 09:33:07,888 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 446 places, 547 transitions, 15738 flow [2021-03-25 09:33:08,083 INFO L129 PetriNetUnfolder]: 495/1191 cut-off events. [2021-03-25 09:33:08,084 INFO L130 PetriNetUnfolder]: For 57231/57234 co-relation queries the response was YES. [2021-03-25 09:33:08,097 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13498 conditions, 1191 events. 495/1191 cut-off events. For 57231/57234 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 8188 event pairs, 5 based on Foata normal form. 1/1038 useless extension candidates. Maximal degree in co-relation 13308. Up to 270 conditions per place. [2021-03-25 09:33:08,111 INFO L142 LiptonReduction]: Number of co-enabled transitions 1834 [2021-03-25 09:33:08,146 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:33:08,146 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:33:08,146 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 263 [2021-03-25 09:33:08,146 INFO L480 AbstractCegarLoop]: Abstraction has has 446 places, 547 transitions, 15738 flow [2021-03-25 09:33:08,146 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:08,146 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:33:08,146 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:33:08,146 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2021-03-25 09:33:08,146 INFO L428 AbstractCegarLoop]: === Iteration 145 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:33:08,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:33:08,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1078035908, now seen corresponding path program 7 times [2021-03-25 09:33:08,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:33:08,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36135750] [2021-03-25 09:33:08,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:33:08,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:33:08,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:08,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:33:08,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:08,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:33:08,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:08,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:08,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:08,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:08,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:08,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:08,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:08,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:08,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:08,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:08,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:08,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:08,221 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:33:08,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:33:08,235 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:33:08,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:08,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:33:08,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36135750] [2021-03-25 09:33:08,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:33:08,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:33:08,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461326542] [2021-03-25 09:33:08,238 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:33:08,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:33:08,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:33:08,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:33:08,238 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 130 [2021-03-25 09:33:08,239 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 547 transitions, 15738 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:08,239 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:33:08,239 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 130 [2021-03-25 09:33:08,239 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:33:08,856 INFO L129 PetriNetUnfolder]: 553/1291 cut-off events. [2021-03-25 09:33:08,856 INFO L130 PetriNetUnfolder]: For 59126/59130 co-relation queries the response was YES. [2021-03-25 09:33:08,872 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14920 conditions, 1291 events. 553/1291 cut-off events. For 59126/59130 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 8692 event pairs, 16 based on Foata normal form. 6/1130 useless extension candidates. Maximal degree in co-relation 14719. Up to 724 conditions per place. [2021-03-25 09:33:08,878 INFO L132 encePairwiseOnDemand]: 111/130 looper letters, 451 selfloop transitions, 90 changer transitions 5/564 dead transitions. [2021-03-25 09:33:08,878 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 564 transitions, 17225 flow [2021-03-25 09:33:08,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:33:08,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:33:08,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 705 transitions. [2021-03-25 09:33:08,879 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4171597633136095 [2021-03-25 09:33:08,879 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 705 transitions. [2021-03-25 09:33:08,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 705 transitions. [2021-03-25 09:33:08,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:33:08,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 705 transitions. [2021-03-25 09:33:08,879 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 54.23076923076923) internal successors, (705), 13 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:08,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 130.0) internal successors, (1820), 14 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:08,880 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 130.0) internal successors, (1820), 14 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:08,880 INFO L185 Difference]: Start difference. First operand has 446 places, 547 transitions, 15738 flow. Second operand 13 states and 705 transitions. [2021-03-25 09:33:08,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 564 transitions, 17225 flow [2021-03-25 09:33:09,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 449 places, 564 transitions, 17071 flow, removed 16 selfloop flow, removed 9 redundant places. [2021-03-25 09:33:09,345 INFO L241 Difference]: Finished difference. Result has 453 places, 549 transitions, 16006 flow [2021-03-25 09:33:09,345 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=15588, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=547, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=16006, PETRI_PLACES=453, PETRI_TRANSITIONS=549} [2021-03-25 09:33:09,345 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 392 predicate places. [2021-03-25 09:33:09,345 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:33:09,345 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 453 places, 549 transitions, 16006 flow [2021-03-25 09:33:09,346 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 453 places, 549 transitions, 16006 flow [2021-03-25 09:33:09,351 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 452 places, 549 transitions, 16006 flow [2021-03-25 09:33:09,568 INFO L129 PetriNetUnfolder]: 495/1186 cut-off events. [2021-03-25 09:33:09,568 INFO L130 PetriNetUnfolder]: For 56568/56593 co-relation queries the response was YES. [2021-03-25 09:33:09,582 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13502 conditions, 1186 events. 495/1186 cut-off events. For 56568/56593 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 8112 event pairs, 5 based on Foata normal form. 3/1031 useless extension candidates. Maximal degree in co-relation 13309. Up to 271 conditions per place. [2021-03-25 09:33:09,597 INFO L142 LiptonReduction]: Number of co-enabled transitions 1832 [2021-03-25 09:33:09,630 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:33:09,630 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:33:09,630 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 285 [2021-03-25 09:33:09,630 INFO L480 AbstractCegarLoop]: Abstraction has has 452 places, 549 transitions, 16006 flow [2021-03-25 09:33:09,630 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:09,630 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:33:09,630 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:33:09,630 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2021-03-25 09:33:09,631 INFO L428 AbstractCegarLoop]: === Iteration 146 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:33:09,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:33:09,631 INFO L82 PathProgramCache]: Analyzing trace with hash 1068444572, now seen corresponding path program 8 times [2021-03-25 09:33:09,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:33:09,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486747841] [2021-03-25 09:33:09,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:33:09,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:33:09,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:09,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:33:09,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:09,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:33:09,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:09,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:09,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:09,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:09,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:09,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:09,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:09,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:09,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:09,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:09,694 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:33:09,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:33:09,707 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:33:09,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:33:09,721 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:33:09,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:09,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:33:09,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486747841] [2021-03-25 09:33:09,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:33:09,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:33:09,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971091284] [2021-03-25 09:33:09,724 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:33:09,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:33:09,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:33:09,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:33:09,724 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 130 [2021-03-25 09:33:09,724 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 452 places, 549 transitions, 16006 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:09,724 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:33:09,725 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 130 [2021-03-25 09:33:09,725 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:33:10,321 INFO L129 PetriNetUnfolder]: 543/1263 cut-off events. [2021-03-25 09:33:10,321 INFO L130 PetriNetUnfolder]: For 57822/57826 co-relation queries the response was YES. [2021-03-25 09:33:10,337 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14885 conditions, 1263 events. 543/1263 cut-off events. For 57822/57826 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 8414 event pairs, 17 based on Foata normal form. 5/1109 useless extension candidates. Maximal degree in co-relation 14681. Up to 723 conditions per place. [2021-03-25 09:33:10,343 INFO L132 encePairwiseOnDemand]: 114/130 looper letters, 456 selfloop transitions, 75 changer transitions 11/560 dead transitions. [2021-03-25 09:33:10,343 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 560 transitions, 17221 flow [2021-03-25 09:33:10,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:33:10,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:33:10,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 649 transitions. [2021-03-25 09:33:10,344 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.41602564102564105 [2021-03-25 09:33:10,344 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 649 transitions. [2021-03-25 09:33:10,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 649 transitions. [2021-03-25 09:33:10,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:33:10,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 649 transitions. [2021-03-25 09:33:10,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 54.083333333333336) internal successors, (649), 12 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:10,345 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 130.0) internal successors, (1690), 13 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:10,345 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 130.0) internal successors, (1690), 13 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:10,345 INFO L185 Difference]: Start difference. First operand has 452 places, 549 transitions, 16006 flow. Second operand 12 states and 649 transitions. [2021-03-25 09:33:10,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 560 transitions, 17221 flow [2021-03-25 09:33:10,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 560 transitions, 16987 flow, removed 75 selfloop flow, removed 9 redundant places. [2021-03-25 09:33:10,792 INFO L241 Difference]: Finished difference. Result has 456 places, 540 transitions, 15703 flow [2021-03-25 09:33:10,793 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=15772, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=549, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=474, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=15703, PETRI_PLACES=456, PETRI_TRANSITIONS=540} [2021-03-25 09:33:10,793 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 395 predicate places. [2021-03-25 09:33:10,793 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:33:10,793 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 456 places, 540 transitions, 15703 flow [2021-03-25 09:33:10,793 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 456 places, 540 transitions, 15703 flow [2021-03-25 09:33:10,798 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 454 places, 540 transitions, 15703 flow [2021-03-25 09:33:10,997 INFO L129 PetriNetUnfolder]: 492/1175 cut-off events. [2021-03-25 09:33:10,998 INFO L130 PetriNetUnfolder]: For 55620/55623 co-relation queries the response was YES. [2021-03-25 09:33:11,012 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13422 conditions, 1175 events. 492/1175 cut-off events. For 55620/55623 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 7965 event pairs, 4 based on Foata normal form. 1/1023 useless extension candidates. Maximal degree in co-relation 13228. Up to 264 conditions per place. [2021-03-25 09:33:11,027 INFO L142 LiptonReduction]: Number of co-enabled transitions 1824 [2021-03-25 09:33:11,121 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-25 09:33:11,121 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:33:11,122 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 329 [2021-03-25 09:33:11,122 INFO L480 AbstractCegarLoop]: Abstraction has has 454 places, 540 transitions, 15711 flow [2021-03-25 09:33:11,122 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:11,122 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:33:11,122 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:33:11,122 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2021-03-25 09:33:11,122 INFO L428 AbstractCegarLoop]: === Iteration 147 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:33:11,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:33:11,122 INFO L82 PathProgramCache]: Analyzing trace with hash 886232028, now seen corresponding path program 9 times [2021-03-25 09:33:11,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:33:11,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181603671] [2021-03-25 09:33:11,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:33:11,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:33:11,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:11,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:33:11,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:11,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:33:11,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:11,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:11,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:11,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:11,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:11,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:11,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:11,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:33:11,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:11,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:11,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:11,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:11,198 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:33:11,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:33:11,212 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:33:11,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:11,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:33:11,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181603671] [2021-03-25 09:33:11,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:33:11,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:33:11,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894693159] [2021-03-25 09:33:11,214 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:33:11,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:33:11,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:33:11,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:33:11,215 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 131 [2021-03-25 09:33:11,215 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 540 transitions, 15711 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:11,215 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:33:11,215 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 131 [2021-03-25 09:33:11,215 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:33:11,897 INFO L129 PetriNetUnfolder]: 548/1266 cut-off events. [2021-03-25 09:33:11,898 INFO L130 PetriNetUnfolder]: For 58019/58032 co-relation queries the response was YES. [2021-03-25 09:33:11,913 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15198 conditions, 1266 events. 548/1266 cut-off events. For 58019/58032 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 8397 event pairs, 7 based on Foata normal form. 14/1125 useless extension candidates. Maximal degree in co-relation 14993. Up to 752 conditions per place. [2021-03-25 09:33:11,919 INFO L132 encePairwiseOnDemand]: 115/131 looper letters, 478 selfloop transitions, 79 changer transitions 2/577 dead transitions. [2021-03-25 09:33:11,919 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 467 places, 577 transitions, 17936 flow [2021-03-25 09:33:11,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:33:11,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:33:11,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 751 transitions. [2021-03-25 09:33:11,921 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4094874591057797 [2021-03-25 09:33:11,921 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 751 transitions. [2021-03-25 09:33:11,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 751 transitions. [2021-03-25 09:33:11,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:33:11,921 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 751 transitions. [2021-03-25 09:33:11,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 53.642857142857146) internal successors, (751), 14 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:11,922 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 131.0) internal successors, (1965), 15 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:11,922 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 131.0) internal successors, (1965), 15 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:11,922 INFO L185 Difference]: Start difference. First operand has 454 places, 540 transitions, 15711 flow. Second operand 14 states and 751 transitions. [2021-03-25 09:33:11,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 467 places, 577 transitions, 17936 flow [2021-03-25 09:33:12,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 577 transitions, 17693 flow, removed 11 selfloop flow, removed 16 redundant places. [2021-03-25 09:33:12,422 INFO L241 Difference]: Finished difference. Result has 455 places, 568 transitions, 16737 flow [2021-03-25 09:33:12,422 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=15468, PETRI_DIFFERENCE_MINUEND_PLACES=438, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=540, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=469, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=16737, PETRI_PLACES=455, PETRI_TRANSITIONS=568} [2021-03-25 09:33:12,422 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 394 predicate places. [2021-03-25 09:33:12,422 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:33:12,422 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 455 places, 568 transitions, 16737 flow [2021-03-25 09:33:12,422 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 455 places, 568 transitions, 16737 flow [2021-03-25 09:33:12,428 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 455 places, 568 transitions, 16737 flow [2021-03-25 09:33:12,638 INFO L129 PetriNetUnfolder]: 502/1195 cut-off events. [2021-03-25 09:33:12,638 INFO L130 PetriNetUnfolder]: For 58223/58226 co-relation queries the response was YES. [2021-03-25 09:33:12,654 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13948 conditions, 1195 events. 502/1195 cut-off events. For 58223/58226 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 8132 event pairs, 7 based on Foata normal form. 1/1042 useless extension candidates. Maximal degree in co-relation 13752. Up to 283 conditions per place. [2021-03-25 09:33:12,669 INFO L142 LiptonReduction]: Number of co-enabled transitions 1868 [2021-03-25 09:33:12,706 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:33:12,706 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:33:12,706 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 284 [2021-03-25 09:33:12,706 INFO L480 AbstractCegarLoop]: Abstraction has has 455 places, 568 transitions, 16737 flow [2021-03-25 09:33:12,706 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:12,706 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:33:12,706 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:33:12,707 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2021-03-25 09:33:12,707 INFO L428 AbstractCegarLoop]: === Iteration 148 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:33:12,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:33:12,707 INFO L82 PathProgramCache]: Analyzing trace with hash 447602650, now seen corresponding path program 1 times [2021-03-25 09:33:12,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:33:12,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116033008] [2021-03-25 09:33:12,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:33:12,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:33:12,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:12,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:33:12,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:12,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:33:12,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:12,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:12,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:12,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:12,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:12,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:12,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:12,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:12,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:12,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:12,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:12,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:12,769 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:33:12,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:33:12,783 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:33:12,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:12,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:33:12,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116033008] [2021-03-25 09:33:12,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:33:12,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:33:12,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122995511] [2021-03-25 09:33:12,785 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:33:12,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:33:12,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:33:12,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:33:12,786 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 131 [2021-03-25 09:33:12,786 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 455 places, 568 transitions, 16737 flow. Second operand has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:12,786 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:33:12,786 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 131 [2021-03-25 09:33:12,786 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:33:13,380 INFO L129 PetriNetUnfolder]: 556/1293 cut-off events. [2021-03-25 09:33:13,380 INFO L130 PetriNetUnfolder]: For 60552/60556 co-relation queries the response was YES. [2021-03-25 09:33:13,398 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15393 conditions, 1293 events. 556/1293 cut-off events. For 60552/60556 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 8678 event pairs, 18 based on Foata normal form. 5/1132 useless extension candidates. Maximal degree in co-relation 15186. Up to 714 conditions per place. [2021-03-25 09:33:13,404 INFO L132 encePairwiseOnDemand]: 113/131 looper letters, 438 selfloop transitions, 112 changer transitions 13/581 dead transitions. [2021-03-25 09:33:13,404 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 581 transitions, 18219 flow [2021-03-25 09:33:13,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:33:13,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:33:13,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 555 transitions. [2021-03-25 09:33:13,405 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.42366412213740456 [2021-03-25 09:33:13,405 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 555 transitions. [2021-03-25 09:33:13,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 555 transitions. [2021-03-25 09:33:13,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:33:13,405 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 555 transitions. [2021-03-25 09:33:13,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 55.5) internal successors, (555), 10 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:13,406 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 131.0) internal successors, (1441), 11 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:13,406 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 131.0) internal successors, (1441), 11 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:13,406 INFO L185 Difference]: Start difference. First operand has 455 places, 568 transitions, 16737 flow. Second operand 10 states and 555 transitions. [2021-03-25 09:33:13,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 581 transitions, 18219 flow [2021-03-25 09:33:13,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 581 transitions, 17688 flow, removed 239 selfloop flow, removed 7 redundant places. [2021-03-25 09:33:13,901 INFO L241 Difference]: Finished difference. Result has 462 places, 561 transitions, 16455 flow [2021-03-25 09:33:13,902 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=16206, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=568, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=456, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=16455, PETRI_PLACES=462, PETRI_TRANSITIONS=561} [2021-03-25 09:33:13,902 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 401 predicate places. [2021-03-25 09:33:13,902 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:33:13,902 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 462 places, 561 transitions, 16455 flow [2021-03-25 09:33:13,902 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 462 places, 561 transitions, 16455 flow [2021-03-25 09:33:13,908 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 459 places, 561 transitions, 16455 flow [2021-03-25 09:33:14,125 INFO L129 PetriNetUnfolder]: 508/1222 cut-off events. [2021-03-25 09:33:14,125 INFO L130 PetriNetUnfolder]: For 58671/58673 co-relation queries the response was YES. [2021-03-25 09:33:14,141 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14001 conditions, 1222 events. 508/1222 cut-off events. For 58671/58673 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 8381 event pairs, 5 based on Foata normal form. 1/1061 useless extension candidates. Maximal degree in co-relation 13815. Up to 276 conditions per place. [2021-03-25 09:33:14,157 INFO L142 LiptonReduction]: Number of co-enabled transitions 1786 [2021-03-25 09:33:14,194 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:33:14,194 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:33:14,194 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 292 [2021-03-25 09:33:14,194 INFO L480 AbstractCegarLoop]: Abstraction has has 459 places, 561 transitions, 16455 flow [2021-03-25 09:33:14,195 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:14,195 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:33:14,195 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:33:14,195 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2021-03-25 09:33:14,195 INFO L428 AbstractCegarLoop]: === Iteration 149 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:33:14,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:33:14,195 INFO L82 PathProgramCache]: Analyzing trace with hash -481071118, now seen corresponding path program 10 times [2021-03-25 09:33:14,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:33:14,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620777734] [2021-03-25 09:33:14,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:33:14,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:33:14,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:14,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:33:14,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:14,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:33:14,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:14,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:14,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:14,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:14,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:14,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:14,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:14,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:33:14,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:14,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:14,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:14,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:14,273 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:33:14,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:33:14,287 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:33:14,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:14,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:33:14,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620777734] [2021-03-25 09:33:14,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:33:14,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:33:14,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354631520] [2021-03-25 09:33:14,289 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:33:14,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:33:14,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:33:14,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:33:14,290 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 131 [2021-03-25 09:33:14,290 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 561 transitions, 16455 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:14,290 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:33:14,290 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 131 [2021-03-25 09:33:14,290 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:33:14,969 INFO L129 PetriNetUnfolder]: 568/1331 cut-off events. [2021-03-25 09:33:14,969 INFO L130 PetriNetUnfolder]: For 62128/62141 co-relation queries the response was YES. [2021-03-25 09:33:14,987 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15475 conditions, 1331 events. 568/1331 cut-off events. For 62128/62141 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 9032 event pairs, 18 based on Foata normal form. 14/1171 useless extension candidates. Maximal degree in co-relation 15287. Up to 764 conditions per place. [2021-03-25 09:33:14,994 INFO L132 encePairwiseOnDemand]: 113/131 looper letters, 502 selfloop transitions, 67 changer transitions 0/587 dead transitions. [2021-03-25 09:33:14,994 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 472 places, 587 transitions, 18111 flow [2021-03-25 09:33:14,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:33:14,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:33:14,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 743 transitions. [2021-03-25 09:33:14,995 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.40512540894220284 [2021-03-25 09:33:14,995 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 743 transitions. [2021-03-25 09:33:14,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 743 transitions. [2021-03-25 09:33:14,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:33:14,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 743 transitions. [2021-03-25 09:33:14,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 53.07142857142857) internal successors, (743), 14 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:14,996 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 131.0) internal successors, (1965), 15 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:14,996 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 131.0) internal successors, (1965), 15 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:14,997 INFO L185 Difference]: Start difference. First operand has 459 places, 561 transitions, 16455 flow. Second operand 14 states and 743 transitions. [2021-03-25 09:33:14,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 472 places, 587 transitions, 18111 flow [2021-03-25 09:33:15,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 456 places, 587 transitions, 17695 flow, removed 8 selfloop flow, removed 16 redundant places. [2021-03-25 09:33:15,477 INFO L241 Difference]: Finished difference. Result has 460 places, 581 transitions, 16735 flow [2021-03-25 09:33:15,478 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=16041, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=561, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=494, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=16735, PETRI_PLACES=460, PETRI_TRANSITIONS=581} [2021-03-25 09:33:15,478 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 399 predicate places. [2021-03-25 09:33:15,478 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:33:15,478 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 460 places, 581 transitions, 16735 flow [2021-03-25 09:33:15,478 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 460 places, 581 transitions, 16735 flow [2021-03-25 09:33:15,484 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 460 places, 581 transitions, 16735 flow [2021-03-25 09:33:15,708 INFO L129 PetriNetUnfolder]: 523/1267 cut-off events. [2021-03-25 09:33:15,708 INFO L130 PetriNetUnfolder]: For 58670/58673 co-relation queries the response was YES. [2021-03-25 09:33:15,725 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14014 conditions, 1267 events. 523/1267 cut-off events. For 58670/58673 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 8870 event pairs, 6 based on Foata normal form. 1/1097 useless extension candidates. Maximal degree in co-relation 13797. Up to 282 conditions per place. [2021-03-25 09:33:15,742 INFO L142 LiptonReduction]: Number of co-enabled transitions 1942 [2021-03-25 09:33:15,858 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:33:15,859 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:33:15,859 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 381 [2021-03-25 09:33:15,859 INFO L480 AbstractCegarLoop]: Abstraction has has 460 places, 581 transitions, 16734 flow [2021-03-25 09:33:15,859 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:15,859 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:33:15,859 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:33:15,859 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2021-03-25 09:33:15,859 INFO L428 AbstractCegarLoop]: === Iteration 150 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:33:15,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:33:15,859 INFO L82 PathProgramCache]: Analyzing trace with hash -1697012746, now seen corresponding path program 11 times [2021-03-25 09:33:15,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:33:15,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923010177] [2021-03-25 09:33:15,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:33:15,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:33:15,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:15,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:33:15,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:15,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:33:15,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:15,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:15,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:15,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:15,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:15,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:15,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:15,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:33:15,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:15,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:15,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:15,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:15,937 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:33:15,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:33:15,951 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:33:15,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:15,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:33:15,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923010177] [2021-03-25 09:33:15,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:33:15,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:33:15,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683387558] [2021-03-25 09:33:15,954 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:33:15,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:33:15,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:33:15,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:33:15,955 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 132 [2021-03-25 09:33:15,955 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 460 places, 581 transitions, 16734 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:15,955 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:33:15,955 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 132 [2021-03-25 09:33:15,955 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:33:16,781 INFO L129 PetriNetUnfolder]: 578/1368 cut-off events. [2021-03-25 09:33:16,781 INFO L130 PetriNetUnfolder]: For 61019/61032 co-relation queries the response was YES. [2021-03-25 09:33:16,794 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15378 conditions, 1368 events. 578/1368 cut-off events. For 61019/61032 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 9475 event pairs, 18 based on Foata normal form. 14/1197 useless extension candidates. Maximal degree in co-relation 15156. Up to 753 conditions per place. [2021-03-25 09:33:16,799 INFO L132 encePairwiseOnDemand]: 112/132 looper letters, 486 selfloop transitions, 89 changer transitions 0/593 dead transitions. [2021-03-25 09:33:16,799 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 473 places, 593 transitions, 18055 flow [2021-03-25 09:33:16,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:33:16,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:33:16,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 754 transitions. [2021-03-25 09:33:16,801 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.408008658008658 [2021-03-25 09:33:16,801 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 754 transitions. [2021-03-25 09:33:16,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 754 transitions. [2021-03-25 09:33:16,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:33:16,801 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 754 transitions. [2021-03-25 09:33:16,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 53.857142857142854) internal successors, (754), 14 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:16,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 132.0) internal successors, (1980), 15 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:16,802 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 132.0) internal successors, (1980), 15 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:16,802 INFO L185 Difference]: Start difference. First operand has 460 places, 581 transitions, 16734 flow. Second operand 14 states and 754 transitions. [2021-03-25 09:33:16,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 473 places, 593 transitions, 18055 flow [2021-03-25 09:33:17,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 464 places, 593 transitions, 17594 flow, removed 140 selfloop flow, removed 9 redundant places. [2021-03-25 09:33:17,260 INFO L241 Difference]: Finished difference. Result has 467 places, 585 transitions, 16625 flow [2021-03-25 09:33:17,260 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=16273, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=581, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=492, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=16625, PETRI_PLACES=467, PETRI_TRANSITIONS=585} [2021-03-25 09:33:17,260 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 406 predicate places. [2021-03-25 09:33:17,260 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:33:17,260 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 467 places, 585 transitions, 16625 flow [2021-03-25 09:33:17,261 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 467 places, 585 transitions, 16625 flow [2021-03-25 09:33:17,266 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 467 places, 585 transitions, 16625 flow [2021-03-25 09:33:17,486 INFO L129 PetriNetUnfolder]: 526/1285 cut-off events. [2021-03-25 09:33:17,486 INFO L130 PetriNetUnfolder]: For 59508/59512 co-relation queries the response was YES. [2021-03-25 09:33:17,503 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13900 conditions, 1285 events. 526/1285 cut-off events. For 59508/59512 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 9154 event pairs, 6 based on Foata normal form. 2/1110 useless extension candidates. Maximal degree in co-relation 13699. Up to 278 conditions per place. [2021-03-25 09:33:17,520 INFO L142 LiptonReduction]: Number of co-enabled transitions 1982 [2021-03-25 09:33:17,625 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:33:17,625 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:33:17,625 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 365 [2021-03-25 09:33:17,625 INFO L480 AbstractCegarLoop]: Abstraction has has 467 places, 585 transitions, 16678 flow [2021-03-25 09:33:17,626 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:17,626 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:33:17,626 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:33:17,626 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2021-03-25 09:33:17,626 INFO L428 AbstractCegarLoop]: === Iteration 151 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:33:17,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:33:17,626 INFO L82 PathProgramCache]: Analyzing trace with hash -49196360, now seen corresponding path program 1 times [2021-03-25 09:33:17,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:33:17,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934298399] [2021-03-25 09:33:17,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:33:17,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:33:17,635 INFO L142 QuantifierPusher]: treesize reduction 13, result has 55.2 percent of original size [2021-03-25 09:33:17,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 09:33:17,643 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 09:33:17,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:33:17,649 INFO L142 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size [2021-03-25 09:33:17,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:17,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:17,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:17,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:17,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:17,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:17,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:17,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:17,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:17,698 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:33:17,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:33:17,712 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:33:17,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:17,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:33:17,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934298399] [2021-03-25 09:33:17,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:33:17,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:33:17,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631212162] [2021-03-25 09:33:17,727 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:33:17,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:33:17,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:33:17,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:33:17,728 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 133 [2021-03-25 09:33:17,728 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 585 transitions, 16678 flow. Second operand has 11 states, 11 states have (on average 49.0) internal successors, (539), 11 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:17,728 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:33:17,728 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 133 [2021-03-25 09:33:17,728 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:33:18,335 INFO L129 PetriNetUnfolder]: 580/1390 cut-off events. [2021-03-25 09:33:18,335 INFO L130 PetriNetUnfolder]: For 60355/60359 co-relation queries the response was YES. [2021-03-25 09:33:18,354 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15510 conditions, 1390 events. 580/1390 cut-off events. For 60355/60359 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 9749 event pairs, 17 based on Foata normal form. 5/1207 useless extension candidates. Maximal degree in co-relation 15298. Up to 796 conditions per place. [2021-03-25 09:33:18,361 INFO L132 encePairwiseOnDemand]: 116/133 looper letters, 542 selfloop transitions, 37 changer transitions 0/597 dead transitions. [2021-03-25 09:33:18,361 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 478 places, 597 transitions, 18119 flow [2021-03-25 09:33:18,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:33:18,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:33:18,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 633 transitions. [2021-03-25 09:33:18,362 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3966165413533835 [2021-03-25 09:33:18,362 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 633 transitions. [2021-03-25 09:33:18,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 633 transitions. [2021-03-25 09:33:18,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:33:18,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 633 transitions. [2021-03-25 09:33:18,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 52.75) internal successors, (633), 12 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:18,363 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 133.0) internal successors, (1729), 13 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:18,363 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 133.0) internal successors, (1729), 13 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:18,363 INFO L185 Difference]: Start difference. First operand has 467 places, 585 transitions, 16678 flow. Second operand 12 states and 633 transitions. [2021-03-25 09:33:18,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 478 places, 597 transitions, 18119 flow [2021-03-25 09:33:18,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 473 places, 597 transitions, 17942 flow, removed 56 selfloop flow, removed 5 redundant places. [2021-03-25 09:33:18,883 INFO L241 Difference]: Finished difference. Result has 477 places, 590 transitions, 16763 flow [2021-03-25 09:33:18,883 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=16501, PETRI_DIFFERENCE_MINUEND_PLACES=462, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=585, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=548, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=16763, PETRI_PLACES=477, PETRI_TRANSITIONS=590} [2021-03-25 09:33:18,883 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 416 predicate places. [2021-03-25 09:33:18,883 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:33:18,884 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 477 places, 590 transitions, 16763 flow [2021-03-25 09:33:18,884 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 477 places, 590 transitions, 16763 flow [2021-03-25 09:33:18,889 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 477 places, 590 transitions, 16763 flow [2021-03-25 09:33:19,124 INFO L129 PetriNetUnfolder]: 538/1331 cut-off events. [2021-03-25 09:33:19,124 INFO L130 PetriNetUnfolder]: For 59483/59486 co-relation queries the response was YES. [2021-03-25 09:33:19,142 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14218 conditions, 1331 events. 538/1331 cut-off events. For 59483/59486 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 9636 event pairs, 6 based on Foata normal form. 1/1144 useless extension candidates. Maximal degree in co-relation 14013. Up to 283 conditions per place. [2021-03-25 09:33:19,159 INFO L142 LiptonReduction]: Number of co-enabled transitions 2028 [2021-03-25 09:33:19,199 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:33:19,200 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:33:19,200 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 317 [2021-03-25 09:33:19,200 INFO L480 AbstractCegarLoop]: Abstraction has has 477 places, 590 transitions, 16763 flow [2021-03-25 09:33:19,200 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.0) internal successors, (539), 11 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:19,200 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:33:19,200 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:33:19,200 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2021-03-25 09:33:19,200 INFO L428 AbstractCegarLoop]: === Iteration 152 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:33:19,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:33:19,200 INFO L82 PathProgramCache]: Analyzing trace with hash -92220922, now seen corresponding path program 2 times [2021-03-25 09:33:19,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:33:19,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293113849] [2021-03-25 09:33:19,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:33:19,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:33:19,209 INFO L142 QuantifierPusher]: treesize reduction 13, result has 55.2 percent of original size [2021-03-25 09:33:19,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 09:33:19,217 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 09:33:19,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:33:19,222 INFO L142 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size [2021-03-25 09:33:19,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:19,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:19,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:19,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:19,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:19,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:19,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:19,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:19,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:19,271 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:33:19,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:33:19,285 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:33:19,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:19,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:33:19,299 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293113849] [2021-03-25 09:33:19,299 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:33:19,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:33:19,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76163385] [2021-03-25 09:33:19,299 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:33:19,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:33:19,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:33:19,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:33:19,300 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 133 [2021-03-25 09:33:19,300 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 477 places, 590 transitions, 16763 flow. Second operand has 11 states, 11 states have (on average 49.0) internal successors, (539), 11 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:19,300 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:33:19,300 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 133 [2021-03-25 09:33:19,300 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:33:19,986 INFO L129 PetriNetUnfolder]: 583/1400 cut-off events. [2021-03-25 09:33:19,986 INFO L130 PetriNetUnfolder]: For 59216/59222 co-relation queries the response was YES. [2021-03-25 09:33:20,005 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15492 conditions, 1400 events. 583/1400 cut-off events. For 59216/59222 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 9865 event pairs, 5 based on Foata normal form. 7/1216 useless extension candidates. Maximal degree in co-relation 15276. Up to 781 conditions per place. [2021-03-25 09:33:20,012 INFO L132 encePairwiseOnDemand]: 112/133 looper letters, 520 selfloop transitions, 60 changer transitions 5/603 dead transitions. [2021-03-25 09:33:20,012 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 489 places, 603 transitions, 18122 flow [2021-03-25 09:33:20,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:33:20,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:33:20,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 699 transitions. [2021-03-25 09:33:20,013 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4042799305957201 [2021-03-25 09:33:20,013 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 699 transitions. [2021-03-25 09:33:20,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 699 transitions. [2021-03-25 09:33:20,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:33:20,013 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 699 transitions. [2021-03-25 09:33:20,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 53.76923076923077) internal successors, (699), 13 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:20,014 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 133.0) internal successors, (1862), 14 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:20,014 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 133.0) internal successors, (1862), 14 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:20,014 INFO L185 Difference]: Start difference. First operand has 477 places, 590 transitions, 16763 flow. Second operand 13 states and 699 transitions. [2021-03-25 09:33:20,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 489 places, 603 transitions, 18122 flow [2021-03-25 09:33:20,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 481 places, 603 transitions, 17898 flow, removed 79 selfloop flow, removed 8 redundant places. [2021-03-25 09:33:20,613 INFO L241 Difference]: Finished difference. Result has 484 places, 590 transitions, 16700 flow [2021-03-25 09:33:20,614 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=16583, PETRI_DIFFERENCE_MINUEND_PLACES=469, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=590, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=530, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=16700, PETRI_PLACES=484, PETRI_TRANSITIONS=590} [2021-03-25 09:33:20,614 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 423 predicate places. [2021-03-25 09:33:20,614 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:33:20,614 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 484 places, 590 transitions, 16700 flow [2021-03-25 09:33:20,614 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 484 places, 590 transitions, 16700 flow [2021-03-25 09:33:20,619 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 483 places, 590 transitions, 16700 flow [2021-03-25 09:33:20,849 INFO L129 PetriNetUnfolder]: 535/1319 cut-off events. [2021-03-25 09:33:20,850 INFO L130 PetriNetUnfolder]: For 59426/59429 co-relation queries the response was YES. [2021-03-25 09:33:20,867 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14126 conditions, 1319 events. 535/1319 cut-off events. For 59426/59429 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 9475 event pairs, 6 based on Foata normal form. 1/1135 useless extension candidates. Maximal degree in co-relation 13918. Up to 278 conditions per place. [2021-03-25 09:33:20,885 INFO L142 LiptonReduction]: Number of co-enabled transitions 2038 [2021-03-25 09:33:20,925 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:33:20,925 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:33:20,925 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 311 [2021-03-25 09:33:20,925 INFO L480 AbstractCegarLoop]: Abstraction has has 483 places, 590 transitions, 16700 flow [2021-03-25 09:33:20,925 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.0) internal successors, (539), 11 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:20,925 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:33:20,925 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:33:20,925 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2021-03-25 09:33:20,925 INFO L428 AbstractCegarLoop]: === Iteration 153 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:33:20,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:33:20,926 INFO L82 PathProgramCache]: Analyzing trace with hash -430551818, now seen corresponding path program 3 times [2021-03-25 09:33:20,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:33:20,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571697319] [2021-03-25 09:33:20,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:33:20,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:33:20,934 INFO L142 QuantifierPusher]: treesize reduction 13, result has 55.2 percent of original size [2021-03-25 09:33:20,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 09:33:20,942 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 09:33:20,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:33:20,947 INFO L142 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size [2021-03-25 09:33:20,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:20,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:20,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:20,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:20,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:20,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:20,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:20,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:20,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:20,994 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:33:20,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:33:21,007 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:33:21,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:21,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:33:21,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571697319] [2021-03-25 09:33:21,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:33:21,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:33:21,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918212144] [2021-03-25 09:33:21,020 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:33:21,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:33:21,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:33:21,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:33:21,021 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 133 [2021-03-25 09:33:21,021 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 483 places, 590 transitions, 16700 flow. Second operand has 11 states, 11 states have (on average 49.0) internal successors, (539), 11 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:21,021 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:33:21,021 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 133 [2021-03-25 09:33:21,021 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:33:21,652 INFO L129 PetriNetUnfolder]: 578/1385 cut-off events. [2021-03-25 09:33:21,653 INFO L130 PetriNetUnfolder]: For 58641/58647 co-relation queries the response was YES. [2021-03-25 09:33:21,671 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15425 conditions, 1385 events. 578/1385 cut-off events. For 58641/58647 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 9748 event pairs, 5 based on Foata normal form. 7/1205 useless extension candidates. Maximal degree in co-relation 15211. Up to 789 conditions per place. [2021-03-25 09:33:21,677 INFO L132 encePairwiseOnDemand]: 113/133 looper letters, 521 selfloop transitions, 53 changer transitions 5/597 dead transitions. [2021-03-25 09:33:21,677 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 495 places, 597 transitions, 17953 flow [2021-03-25 09:33:21,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:33:21,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:33:21,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 693 transitions. [2021-03-25 09:33:21,678 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4008097165991903 [2021-03-25 09:33:21,678 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 693 transitions. [2021-03-25 09:33:21,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 693 transitions. [2021-03-25 09:33:21,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:33:21,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 693 transitions. [2021-03-25 09:33:21,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 53.30769230769231) internal successors, (693), 13 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:21,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 133.0) internal successors, (1862), 14 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:21,680 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 133.0) internal successors, (1862), 14 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:21,680 INFO L185 Difference]: Start difference. First operand has 483 places, 590 transitions, 16700 flow. Second operand 13 states and 693 transitions. [2021-03-25 09:33:21,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 495 places, 597 transitions, 17953 flow [2021-03-25 09:33:22,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 485 places, 597 transitions, 17861 flow, removed 7 selfloop flow, removed 10 redundant places. [2021-03-25 09:33:22,200 INFO L241 Difference]: Finished difference. Result has 487 places, 586 transitions, 16683 flow [2021-03-25 09:33:22,200 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=16608, PETRI_DIFFERENCE_MINUEND_PLACES=473, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=590, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=537, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=16683, PETRI_PLACES=487, PETRI_TRANSITIONS=586} [2021-03-25 09:33:22,200 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 426 predicate places. [2021-03-25 09:33:22,200 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:33:22,200 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 487 places, 586 transitions, 16683 flow [2021-03-25 09:33:22,200 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 487 places, 586 transitions, 16683 flow [2021-03-25 09:33:22,206 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 484 places, 586 transitions, 16683 flow [2021-03-25 09:33:22,433 INFO L129 PetriNetUnfolder]: 531/1303 cut-off events. [2021-03-25 09:33:22,433 INFO L130 PetriNetUnfolder]: For 60277/60298 co-relation queries the response was YES. [2021-03-25 09:33:22,451 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14195 conditions, 1303 events. 531/1303 cut-off events. For 60277/60298 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 9328 event pairs, 7 based on Foata normal form. 1/1123 useless extension candidates. Maximal degree in co-relation 13987. Up to 279 conditions per place. [2021-03-25 09:33:22,468 INFO L142 LiptonReduction]: Number of co-enabled transitions 2016 [2021-03-25 09:33:22,680 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 09:33:22,680 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 09:33:22,681 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 481 [2021-03-25 09:33:22,681 INFO L480 AbstractCegarLoop]: Abstraction has has 484 places, 586 transitions, 16698 flow [2021-03-25 09:33:22,681 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.0) internal successors, (539), 11 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:22,681 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:33:22,681 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:33:22,681 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2021-03-25 09:33:22,681 INFO L428 AbstractCegarLoop]: === Iteration 154 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:33:22,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:33:22,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1727291160, now seen corresponding path program 4 times [2021-03-25 09:33:22,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:33:22,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890520655] [2021-03-25 09:33:22,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:33:22,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:33:22,689 INFO L142 QuantifierPusher]: treesize reduction 13, result has 55.2 percent of original size [2021-03-25 09:33:22,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 09:33:22,697 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 09:33:22,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:33:22,702 INFO L142 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size [2021-03-25 09:33:22,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:22,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:22,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:22,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:22,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:22,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:22,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:22,737 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:33:22,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:33:22,750 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:33:22,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:33:22,763 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:33:22,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:22,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:33:22,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890520655] [2021-03-25 09:33:22,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:33:22,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:33:22,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674626568] [2021-03-25 09:33:22,776 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:33:22,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:33:22,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:33:22,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:33:22,777 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 135 [2021-03-25 09:33:22,777 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 484 places, 586 transitions, 16698 flow. Second operand has 11 states, 11 states have (on average 49.0) internal successors, (539), 11 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:22,777 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:33:22,777 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 135 [2021-03-25 09:33:22,777 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:33:23,450 INFO L129 PetriNetUnfolder]: 577/1378 cut-off events. [2021-03-25 09:33:23,450 INFO L130 PetriNetUnfolder]: For 59723/59736 co-relation queries the response was YES. [2021-03-25 09:33:23,468 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15381 conditions, 1378 events. 577/1378 cut-off events. For 59723/59736 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 9610 event pairs, 16 based on Foata normal form. 14/1205 useless extension candidates. Maximal degree in co-relation 15171. Up to 795 conditions per place. [2021-03-25 09:33:23,474 INFO L132 encePairwiseOnDemand]: 118/135 looper letters, 538 selfloop transitions, 34 changer transitions 2/592 dead transitions. [2021-03-25 09:33:23,475 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 494 places, 592 transitions, 17920 flow [2021-03-25 09:33:23,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:33:23,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:33:23,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 585 transitions. [2021-03-25 09:33:23,476 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3939393939393939 [2021-03-25 09:33:23,476 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 585 transitions. [2021-03-25 09:33:23,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 585 transitions. [2021-03-25 09:33:23,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:33:23,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 585 transitions. [2021-03-25 09:33:23,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 53.18181818181818) internal successors, (585), 11 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:23,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 135.0) internal successors, (1620), 12 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:23,477 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 135.0) internal successors, (1620), 12 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:23,477 INFO L185 Difference]: Start difference. First operand has 484 places, 586 transitions, 16698 flow. Second operand 11 states and 585 transitions. [2021-03-25 09:33:23,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 494 places, 592 transitions, 17920 flow [2021-03-25 09:33:24,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 476 places, 592 transitions, 17655 flow, removed 42 selfloop flow, removed 18 redundant places. [2021-03-25 09:33:24,043 INFO L241 Difference]: Finished difference. Result has 478 places, 585 transitions, 16465 flow [2021-03-25 09:33:24,044 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=16435, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=586, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=552, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=16465, PETRI_PLACES=478, PETRI_TRANSITIONS=585} [2021-03-25 09:33:24,044 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 417 predicate places. [2021-03-25 09:33:24,044 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:33:24,044 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 478 places, 585 transitions, 16465 flow [2021-03-25 09:33:24,044 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 478 places, 585 transitions, 16465 flow [2021-03-25 09:33:24,049 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 477 places, 585 transitions, 16465 flow [2021-03-25 09:33:24,308 INFO L129 PetriNetUnfolder]: 527/1290 cut-off events. [2021-03-25 09:33:24,308 INFO L130 PetriNetUnfolder]: For 59977/59997 co-relation queries the response was YES. [2021-03-25 09:33:24,324 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14057 conditions, 1290 events. 527/1290 cut-off events. For 59977/59997 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 9191 event pairs, 5 based on Foata normal form. 0/1111 useless extension candidates. Maximal degree in co-relation 13853. Up to 273 conditions per place. [2021-03-25 09:33:24,341 INFO L142 LiptonReduction]: Number of co-enabled transitions 2016 [2021-03-25 09:33:24,378 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:33:24,378 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:33:24,379 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 335 [2021-03-25 09:33:24,379 INFO L480 AbstractCegarLoop]: Abstraction has has 477 places, 585 transitions, 16465 flow [2021-03-25 09:33:24,379 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.0) internal successors, (539), 11 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:24,379 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:33:24,379 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:33:24,379 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2021-03-25 09:33:24,379 INFO L428 AbstractCegarLoop]: === Iteration 155 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:33:24,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:33:24,379 INFO L82 PathProgramCache]: Analyzing trace with hash -940346570, now seen corresponding path program 5 times [2021-03-25 09:33:24,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:33:24,379 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770532657] [2021-03-25 09:33:24,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:33:24,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:33:24,387 INFO L142 QuantifierPusher]: treesize reduction 13, result has 55.2 percent of original size [2021-03-25 09:33:24,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 09:33:24,395 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 09:33:24,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:33:24,400 INFO L142 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size [2021-03-25 09:33:24,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:24,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:24,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:24,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:24,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:24,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:24,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:24,436 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:33:24,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:33:24,448 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:33:24,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:33:24,462 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:33:24,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:24,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:33:24,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770532657] [2021-03-25 09:33:24,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:33:24,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:33:24,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148174303] [2021-03-25 09:33:24,476 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:33:24,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:33:24,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:33:24,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:33:24,476 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 135 [2021-03-25 09:33:24,477 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 477 places, 585 transitions, 16465 flow. Second operand has 11 states, 11 states have (on average 49.0) internal successors, (539), 11 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:24,477 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:33:24,477 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 135 [2021-03-25 09:33:24,477 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:33:25,047 INFO L129 PetriNetUnfolder]: 575/1371 cut-off events. [2021-03-25 09:33:25,047 INFO L130 PetriNetUnfolder]: For 58088/58103 co-relation queries the response was YES. [2021-03-25 09:33:25,066 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15221 conditions, 1371 events. 575/1371 cut-off events. For 58088/58103 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 9542 event pairs, 6 based on Foata normal form. 16/1200 useless extension candidates. Maximal degree in co-relation 15015. Up to 792 conditions per place. [2021-03-25 09:33:25,072 INFO L132 encePairwiseOnDemand]: 117/135 looper letters, 533 selfloop transitions, 36 changer transitions 4/591 dead transitions. [2021-03-25 09:33:25,072 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 488 places, 591 transitions, 17658 flow [2021-03-25 09:33:25,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:33:25,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:33:25,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 636 transitions. [2021-03-25 09:33:25,073 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3925925925925926 [2021-03-25 09:33:25,073 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 636 transitions. [2021-03-25 09:33:25,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 636 transitions. [2021-03-25 09:33:25,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:33:25,073 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 636 transitions. [2021-03-25 09:33:25,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 53.0) internal successors, (636), 12 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:25,074 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 135.0) internal successors, (1755), 13 states have internal predecessors, (1755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:25,074 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 135.0) internal successors, (1755), 13 states have internal predecessors, (1755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:25,075 INFO L185 Difference]: Start difference. First operand has 477 places, 585 transitions, 16465 flow. Second operand 12 states and 636 transitions. [2021-03-25 09:33:25,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 488 places, 591 transitions, 17658 flow [2021-03-25 09:33:25,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 478 places, 591 transitions, 17558 flow, removed 15 selfloop flow, removed 10 redundant places. [2021-03-25 09:33:25,580 INFO L241 Difference]: Finished difference. Result has 480 places, 582 transitions, 16348 flow [2021-03-25 09:33:25,580 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=16365, PETRI_DIFFERENCE_MINUEND_PLACES=467, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=585, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=549, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=16348, PETRI_PLACES=480, PETRI_TRANSITIONS=582} [2021-03-25 09:33:25,580 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 419 predicate places. [2021-03-25 09:33:25,580 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:33:25,580 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 480 places, 582 transitions, 16348 flow [2021-03-25 09:33:25,580 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 480 places, 582 transitions, 16348 flow [2021-03-25 09:33:25,586 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 478 places, 582 transitions, 16348 flow [2021-03-25 09:33:25,814 INFO L129 PetriNetUnfolder]: 525/1284 cut-off events. [2021-03-25 09:33:25,814 INFO L130 PetriNetUnfolder]: For 60161/60182 co-relation queries the response was YES. [2021-03-25 09:33:25,832 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13987 conditions, 1284 events. 525/1284 cut-off events. For 60161/60182 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 9126 event pairs, 6 based on Foata normal form. 1/1107 useless extension candidates. Maximal degree in co-relation 13783. Up to 272 conditions per place. [2021-03-25 09:33:25,849 INFO L142 LiptonReduction]: Number of co-enabled transitions 2016 [2021-03-25 09:33:25,888 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:33:25,889 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:33:25,889 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 309 [2021-03-25 09:33:25,889 INFO L480 AbstractCegarLoop]: Abstraction has has 478 places, 582 transitions, 16348 flow [2021-03-25 09:33:25,889 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.0) internal successors, (539), 11 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:25,889 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:33:25,889 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:33:25,889 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2021-03-25 09:33:25,889 INFO L428 AbstractCegarLoop]: === Iteration 156 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:33:25,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:33:25,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1629786251, now seen corresponding path program 1 times [2021-03-25 09:33:25,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:33:25,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858880821] [2021-03-25 09:33:25,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:33:25,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:33:25,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:25,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:33:25,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:25,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:33:25,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:25,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:25,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:25,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:33:25,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:25,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:25,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:25,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:25,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:25,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:25,955 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:33:25,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:33:25,969 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:33:25,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:25,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:33:25,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858880821] [2021-03-25 09:33:25,972 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:33:25,972 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:33:25,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988231250] [2021-03-25 09:33:25,972 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:33:25,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:33:25,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:33:25,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:33:25,973 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 135 [2021-03-25 09:33:25,973 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 478 places, 582 transitions, 16348 flow. Second operand has 10 states, 10 states have (on average 49.1) internal successors, (491), 10 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:25,973 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:33:25,973 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 135 [2021-03-25 09:33:25,973 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:33:26,599 INFO L129 PetriNetUnfolder]: 579/1383 cut-off events. [2021-03-25 09:33:26,599 INFO L130 PetriNetUnfolder]: For 60581/60594 co-relation queries the response was YES. [2021-03-25 09:33:26,618 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15279 conditions, 1383 events. 579/1383 cut-off events. For 60581/60594 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 9652 event pairs, 16 based on Foata normal form. 14/1206 useless extension candidates. Maximal degree in co-relation 15069. Up to 767 conditions per place. [2021-03-25 09:33:26,625 INFO L132 encePairwiseOnDemand]: 115/135 looper letters, 498 selfloop transitions, 76 changer transitions 0/592 dead transitions. [2021-03-25 09:33:26,625 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 487 places, 592 transitions, 17776 flow [2021-03-25 09:33:26,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:33:26,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:33:26,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 548 transitions. [2021-03-25 09:33:26,626 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4059259259259259 [2021-03-25 09:33:26,626 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 548 transitions. [2021-03-25 09:33:26,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 548 transitions. [2021-03-25 09:33:26,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:33:26,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 548 transitions. [2021-03-25 09:33:26,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 54.8) internal successors, (548), 10 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:26,628 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 135.0) internal successors, (1485), 11 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:26,628 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 135.0) internal successors, (1485), 11 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:26,628 INFO L185 Difference]: Start difference. First operand has 478 places, 582 transitions, 16348 flow. Second operand 10 states and 548 transitions. [2021-03-25 09:33:26,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 487 places, 592 transitions, 17776 flow [2021-03-25 09:33:27,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 592 transitions, 17675 flow, removed 12 selfloop flow, removed 12 redundant places. [2021-03-25 09:33:27,162 INFO L241 Difference]: Finished difference. Result has 478 places, 586 transitions, 16702 flow [2021-03-25 09:33:27,162 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=16247, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=582, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=507, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=16702, PETRI_PLACES=478, PETRI_TRANSITIONS=586} [2021-03-25 09:33:27,162 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 417 predicate places. [2021-03-25 09:33:27,162 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:33:27,163 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 478 places, 586 transitions, 16702 flow [2021-03-25 09:33:27,163 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 478 places, 586 transitions, 16702 flow [2021-03-25 09:33:27,168 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 478 places, 586 transitions, 16702 flow [2021-03-25 09:33:27,403 INFO L129 PetriNetUnfolder]: 527/1295 cut-off events. [2021-03-25 09:33:27,403 INFO L130 PetriNetUnfolder]: For 63739/63765 co-relation queries the response was YES. [2021-03-25 09:33:27,421 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14218 conditions, 1295 events. 527/1295 cut-off events. For 63739/63765 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 9308 event pairs, 5 based on Foata normal form. 2/1117 useless extension candidates. Maximal degree in co-relation 14013. Up to 275 conditions per place. [2021-03-25 09:33:27,439 INFO L142 LiptonReduction]: Number of co-enabled transitions 2068 [2021-03-25 09:33:27,479 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:33:27,479 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:33:27,479 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 317 [2021-03-25 09:33:27,479 INFO L480 AbstractCegarLoop]: Abstraction has has 478 places, 586 transitions, 16702 flow [2021-03-25 09:33:27,480 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.1) internal successors, (491), 10 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:27,480 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:33:27,480 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:33:27,480 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2021-03-25 09:33:27,480 INFO L428 AbstractCegarLoop]: === Iteration 157 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:33:27,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:33:27,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1798109879, now seen corresponding path program 2 times [2021-03-25 09:33:27,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:33:27,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919327646] [2021-03-25 09:33:27,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:33:27,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:33:27,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:27,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:33:27,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:27,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:33:27,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:27,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:27,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:27,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:33:27,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:27,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:27,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:27,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:27,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:27,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:27,547 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:33:27,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:33:27,561 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:33:27,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:27,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:33:27,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919327646] [2021-03-25 09:33:27,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:33:27,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:33:27,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763180940] [2021-03-25 09:33:27,563 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:33:27,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:33:27,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:33:27,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:33:27,564 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 135 [2021-03-25 09:33:27,564 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 478 places, 586 transitions, 16702 flow. Second operand has 10 states, 10 states have (on average 49.1) internal successors, (491), 10 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:27,564 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:33:27,564 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 135 [2021-03-25 09:33:27,564 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:33:28,160 INFO L129 PetriNetUnfolder]: 583/1403 cut-off events. [2021-03-25 09:33:28,160 INFO L130 PetriNetUnfolder]: For 61271/61286 co-relation queries the response was YES. [2021-03-25 09:33:28,179 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15437 conditions, 1403 events. 583/1403 cut-off events. For 61271/61286 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 9985 event pairs, 5 based on Foata normal form. 12/1218 useless extension candidates. Maximal degree in co-relation 15226. Up to 781 conditions per place. [2021-03-25 09:33:28,185 INFO L132 encePairwiseOnDemand]: 118/135 looper letters, 501 selfloop transitions, 56 changer transitions 17/592 dead transitions. [2021-03-25 09:33:28,185 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 487 places, 592 transitions, 17969 flow [2021-03-25 09:33:28,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:33:28,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:33:28,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 544 transitions. [2021-03-25 09:33:28,186 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.40296296296296297 [2021-03-25 09:33:28,186 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 544 transitions. [2021-03-25 09:33:28,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 544 transitions. [2021-03-25 09:33:28,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:33:28,186 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 544 transitions. [2021-03-25 09:33:28,187 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 54.4) internal successors, (544), 10 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:28,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 135.0) internal successors, (1485), 11 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:28,187 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 135.0) internal successors, (1485), 11 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:28,187 INFO L185 Difference]: Start difference. First operand has 478 places, 586 transitions, 16702 flow. Second operand 10 states and 544 transitions. [2021-03-25 09:33:28,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 487 places, 592 transitions, 17969 flow [2021-03-25 09:33:28,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 483 places, 592 transitions, 17878 flow, removed 34 selfloop flow, removed 4 redundant places. [2021-03-25 09:33:28,727 INFO L241 Difference]: Finished difference. Result has 485 places, 570 transitions, 16310 flow [2021-03-25 09:33:28,728 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=16611, PETRI_DIFFERENCE_MINUEND_PLACES=474, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=586, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=530, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=16310, PETRI_PLACES=485, PETRI_TRANSITIONS=570} [2021-03-25 09:33:28,728 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 424 predicate places. [2021-03-25 09:33:28,728 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:33:28,728 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 485 places, 570 transitions, 16310 flow [2021-03-25 09:33:28,728 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 485 places, 570 transitions, 16310 flow [2021-03-25 09:33:28,733 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 479 places, 570 transitions, 16310 flow [2021-03-25 09:33:28,958 INFO L129 PetriNetUnfolder]: 515/1260 cut-off events. [2021-03-25 09:33:28,958 INFO L130 PetriNetUnfolder]: For 59918/59921 co-relation queries the response was YES. [2021-03-25 09:33:28,975 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13906 conditions, 1260 events. 515/1260 cut-off events. For 59918/59921 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 8875 event pairs, 6 based on Foata normal form. 1/1090 useless extension candidates. Maximal degree in co-relation 13699. Up to 263 conditions per place. [2021-03-25 09:33:28,991 INFO L142 LiptonReduction]: Number of co-enabled transitions 1924 [2021-03-25 09:33:29,029 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:33:29,029 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:33:29,029 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 301 [2021-03-25 09:33:29,029 INFO L480 AbstractCegarLoop]: Abstraction has has 479 places, 570 transitions, 16310 flow [2021-03-25 09:33:29,029 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.1) internal successors, (491), 10 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:29,029 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:33:29,029 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:33:29,029 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2021-03-25 09:33:29,029 INFO L428 AbstractCegarLoop]: === Iteration 158 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:33:29,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:33:29,030 INFO L82 PathProgramCache]: Analyzing trace with hash -834576962, now seen corresponding path program 12 times [2021-03-25 09:33:29,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:33:29,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012918227] [2021-03-25 09:33:29,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:33:29,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:33:29,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:29,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:33:29,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:29,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:33:29,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:29,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:29,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:29,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:29,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:29,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:29,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:29,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:33:29,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:29,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:29,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:29,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:29,107 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:33:29,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:33:29,120 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:33:29,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:29,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:33:29,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012918227] [2021-03-25 09:33:29,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:33:29,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:33:29,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709481885] [2021-03-25 09:33:29,123 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:33:29,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:33:29,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:33:29,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:33:29,124 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 135 [2021-03-25 09:33:29,124 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 479 places, 570 transitions, 16310 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:29,124 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:33:29,124 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 135 [2021-03-25 09:33:29,124 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:33:29,882 INFO L129 PetriNetUnfolder]: 584/1397 cut-off events. [2021-03-25 09:33:29,883 INFO L130 PetriNetUnfolder]: For 60549/60564 co-relation queries the response was YES. [2021-03-25 09:33:29,902 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15437 conditions, 1397 events. 584/1397 cut-off events. For 60549/60564 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 9856 event pairs, 6 based on Foata normal form. 16/1217 useless extension candidates. Maximal degree in co-relation 15246. Up to 710 conditions per place. [2021-03-25 09:33:29,908 INFO L132 encePairwiseOnDemand]: 115/135 looper letters, 433 selfloop transitions, 143 changer transitions 0/594 dead transitions. [2021-03-25 09:33:29,908 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 493 places, 594 transitions, 17940 flow [2021-03-25 09:33:29,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 09:33:29,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 09:33:29,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 809 transitions. [2021-03-25 09:33:29,909 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3995061728395062 [2021-03-25 09:33:29,909 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 809 transitions. [2021-03-25 09:33:29,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 809 transitions. [2021-03-25 09:33:29,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:33:29,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 809 transitions. [2021-03-25 09:33:29,910 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 53.93333333333333) internal successors, (809), 15 states have internal predecessors, (809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:29,911 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 135.0) internal successors, (2160), 16 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:29,911 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 135.0) internal successors, (2160), 16 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:29,911 INFO L185 Difference]: Start difference. First operand has 479 places, 570 transitions, 16310 flow. Second operand 15 states and 809 transitions. [2021-03-25 09:33:29,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 493 places, 594 transitions, 17940 flow [2021-03-25 09:33:30,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 474 places, 594 transitions, 17297 flow, removed 22 selfloop flow, removed 19 redundant places. [2021-03-25 09:33:30,413 INFO L241 Difference]: Finished difference. Result has 478 places, 583 transitions, 16495 flow [2021-03-25 09:33:30,414 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=15669, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=570, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=130, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=16495, PETRI_PLACES=478, PETRI_TRANSITIONS=583} [2021-03-25 09:33:30,414 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 417 predicate places. [2021-03-25 09:33:30,414 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:33:30,414 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 478 places, 583 transitions, 16495 flow [2021-03-25 09:33:30,414 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 478 places, 583 transitions, 16495 flow [2021-03-25 09:33:30,419 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 478 places, 583 transitions, 16495 flow [2021-03-25 09:33:30,650 INFO L129 PetriNetUnfolder]: 538/1325 cut-off events. [2021-03-25 09:33:30,651 INFO L130 PetriNetUnfolder]: For 58200/58222 co-relation queries the response was YES. [2021-03-25 09:33:30,668 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13996 conditions, 1325 events. 538/1325 cut-off events. For 58200/58222 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 9498 event pairs, 4 based on Foata normal form. 2/1135 useless extension candidates. Maximal degree in co-relation 13790. Up to 269 conditions per place. [2021-03-25 09:33:30,685 INFO L142 LiptonReduction]: Number of co-enabled transitions 2026 [2021-03-25 09:33:30,723 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:33:30,723 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:33:30,724 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 310 [2021-03-25 09:33:30,724 INFO L480 AbstractCegarLoop]: Abstraction has has 478 places, 583 transitions, 16495 flow [2021-03-25 09:33:30,724 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:30,724 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:33:30,724 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:33:30,724 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2021-03-25 09:33:30,724 INFO L428 AbstractCegarLoop]: === Iteration 159 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:33:30,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:33:30,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1821770894, now seen corresponding path program 13 times [2021-03-25 09:33:30,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:33:30,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541617473] [2021-03-25 09:33:30,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:33:30,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:33:30,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:30,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:33:30,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:30,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:33:30,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:30,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:30,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:30,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:30,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:30,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:30,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:30,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:33:30,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:30,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:30,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:30,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:30,801 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:33:30,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:33:30,809 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:33:30,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:30,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:33:30,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541617473] [2021-03-25 09:33:30,811 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:33:30,811 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:33:30,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253742085] [2021-03-25 09:33:30,811 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:33:30,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:33:30,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:33:30,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:33:30,812 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 135 [2021-03-25 09:33:30,812 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 478 places, 583 transitions, 16495 flow. Second operand has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:30,812 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:33:30,812 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 135 [2021-03-25 09:33:30,812 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:33:31,421 INFO L129 PetriNetUnfolder]: 586/1414 cut-off events. [2021-03-25 09:33:31,422 INFO L130 PetriNetUnfolder]: For 58792/58798 co-relation queries the response was YES. [2021-03-25 09:33:31,438 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15399 conditions, 1414 events. 586/1414 cut-off events. For 58792/58798 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 9997 event pairs, 7 based on Foata normal form. 7/1222 useless extension candidates. Maximal degree in co-relation 15189. Up to 800 conditions per place. [2021-03-25 09:33:31,444 INFO L132 encePairwiseOnDemand]: 121/135 looper letters, 544 selfloop transitions, 29 changer transitions 0/591 dead transitions. [2021-03-25 09:33:31,444 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 488 places, 591 transitions, 17871 flow [2021-03-25 09:33:31,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:33:31,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:33:31,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 583 transitions. [2021-03-25 09:33:31,445 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3925925925925926 [2021-03-25 09:33:31,445 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 583 transitions. [2021-03-25 09:33:31,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 583 transitions. [2021-03-25 09:33:31,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:33:31,446 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 583 transitions. [2021-03-25 09:33:31,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 53.0) internal successors, (583), 11 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:31,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 135.0) internal successors, (1620), 12 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:31,447 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 135.0) internal successors, (1620), 12 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:31,447 INFO L185 Difference]: Start difference. First operand has 478 places, 583 transitions, 16495 flow. Second operand 11 states and 583 transitions. [2021-03-25 09:33:31,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 488 places, 591 transitions, 17871 flow [2021-03-25 09:33:31,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 477 places, 591 transitions, 17528 flow, removed 77 selfloop flow, removed 11 redundant places. [2021-03-25 09:33:31,953 INFO L241 Difference]: Finished difference. Result has 480 places, 585 transitions, 16343 flow [2021-03-25 09:33:31,953 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=16152, PETRI_DIFFERENCE_MINUEND_PLACES=467, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=583, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=554, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=16343, PETRI_PLACES=480, PETRI_TRANSITIONS=585} [2021-03-25 09:33:31,953 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 419 predicate places. [2021-03-25 09:33:31,953 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:33:31,954 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 480 places, 585 transitions, 16343 flow [2021-03-25 09:33:31,954 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 480 places, 585 transitions, 16343 flow [2021-03-25 09:33:31,959 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 480 places, 585 transitions, 16343 flow [2021-03-25 09:33:32,201 INFO L129 PetriNetUnfolder]: 540/1342 cut-off events. [2021-03-25 09:33:32,201 INFO L130 PetriNetUnfolder]: For 58778/58799 co-relation queries the response was YES. [2021-03-25 09:33:32,220 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14136 conditions, 1342 events. 540/1342 cut-off events. For 58778/58799 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 9748 event pairs, 6 based on Foata normal form. 1/1149 useless extension candidates. Maximal degree in co-relation 13928. Up to 270 conditions per place. [2021-03-25 09:33:32,239 INFO L142 LiptonReduction]: Number of co-enabled transitions 2050 [2021-03-25 09:33:32,278 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:33:32,278 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:33:32,278 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 325 [2021-03-25 09:33:32,278 INFO L480 AbstractCegarLoop]: Abstraction has has 480 places, 585 transitions, 16343 flow [2021-03-25 09:33:32,278 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:32,278 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:33:32,278 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:33:32,278 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2021-03-25 09:33:32,278 INFO L428 AbstractCegarLoop]: === Iteration 160 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:33:32,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:33:32,279 INFO L82 PathProgramCache]: Analyzing trace with hash -698600574, now seen corresponding path program 14 times [2021-03-25 09:33:32,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:33:32,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681648826] [2021-03-25 09:33:32,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:33:32,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:33:32,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:32,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:33:32,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:32,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:33:32,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:32,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:32,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:32,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:32,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:32,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:32,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:32,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:33:32,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:32,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:32,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:32,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:32,358 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:33:32,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:33:32,372 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:33:32,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:32,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:33:32,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681648826] [2021-03-25 09:33:32,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:33:32,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:33:32,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756377131] [2021-03-25 09:33:32,375 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:33:32,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:33:32,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:33:32,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:33:32,376 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 135 [2021-03-25 09:33:32,376 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 480 places, 585 transitions, 16343 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:32,376 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:33:32,376 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 135 [2021-03-25 09:33:32,376 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:33:33,067 INFO L129 PetriNetUnfolder]: 591/1445 cut-off events. [2021-03-25 09:33:33,068 INFO L130 PetriNetUnfolder]: For 58770/58776 co-relation queries the response was YES. [2021-03-25 09:33:33,088 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15573 conditions, 1445 events. 591/1445 cut-off events. For 58770/58776 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 10366 event pairs, 8 based on Foata normal form. 7/1249 useless extension candidates. Maximal degree in co-relation 15360. Up to 752 conditions per place. [2021-03-25 09:33:33,095 INFO L132 encePairwiseOnDemand]: 118/135 looper letters, 491 selfloop transitions, 99 changer transitions 0/608 dead transitions. [2021-03-25 09:33:33,095 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 491 places, 608 transitions, 18052 flow [2021-03-25 09:33:33,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:33:33,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:33:33,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 652 transitions. [2021-03-25 09:33:33,096 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4024691358024691 [2021-03-25 09:33:33,096 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 652 transitions. [2021-03-25 09:33:33,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 652 transitions. [2021-03-25 09:33:33,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:33:33,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 652 transitions. [2021-03-25 09:33:33,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 54.333333333333336) internal successors, (652), 12 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:33,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 135.0) internal successors, (1755), 13 states have internal predecessors, (1755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:33,098 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 135.0) internal successors, (1755), 13 states have internal predecessors, (1755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:33,098 INFO L185 Difference]: Start difference. First operand has 480 places, 585 transitions, 16343 flow. Second operand 12 states and 652 transitions. [2021-03-25 09:33:33,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 491 places, 608 transitions, 18052 flow [2021-03-25 09:33:33,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 483 places, 608 transitions, 17915 flow, removed 44 selfloop flow, removed 8 redundant places. [2021-03-25 09:33:33,700 INFO L241 Difference]: Finished difference. Result has 489 places, 595 transitions, 16872 flow [2021-03-25 09:33:33,701 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=16206, PETRI_DIFFERENCE_MINUEND_PLACES=472, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=585, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=486, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=16872, PETRI_PLACES=489, PETRI_TRANSITIONS=595} [2021-03-25 09:33:33,701 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 428 predicate places. [2021-03-25 09:33:33,701 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:33:33,701 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 489 places, 595 transitions, 16872 flow [2021-03-25 09:33:33,701 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 489 places, 595 transitions, 16872 flow [2021-03-25 09:33:33,707 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 489 places, 595 transitions, 16872 flow [2021-03-25 09:33:33,977 INFO L129 PetriNetUnfolder]: 551/1386 cut-off events. [2021-03-25 09:33:33,977 INFO L130 PetriNetUnfolder]: For 60675/60696 co-relation queries the response was YES. [2021-03-25 09:33:33,996 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14582 conditions, 1386 events. 551/1386 cut-off events. For 60675/60696 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 10215 event pairs, 6 based on Foata normal form. 1/1183 useless extension candidates. Maximal degree in co-relation 14367. Up to 277 conditions per place. [2021-03-25 09:33:34,015 INFO L142 LiptonReduction]: Number of co-enabled transitions 2092 [2021-03-25 09:33:34,055 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:33:34,055 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:33:34,055 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 354 [2021-03-25 09:33:34,055 INFO L480 AbstractCegarLoop]: Abstraction has has 489 places, 595 transitions, 16872 flow [2021-03-25 09:33:34,056 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:34,056 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:33:34,056 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:33:34,056 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2021-03-25 09:33:34,056 INFO L428 AbstractCegarLoop]: === Iteration 161 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:33:34,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:33:34,056 INFO L82 PathProgramCache]: Analyzing trace with hash -698415838, now seen corresponding path program 15 times [2021-03-25 09:33:34,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:33:34,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933516931] [2021-03-25 09:33:34,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:33:34,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:33:34,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:34,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:33:34,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:34,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:33:34,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:34,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:34,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:34,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:34,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:34,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:34,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:34,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:33:34,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:34,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:34,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:34,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:34,136 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:33:34,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:33:34,150 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:33:34,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:34,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:33:34,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933516931] [2021-03-25 09:33:34,153 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:33:34,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:33:34,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42357362] [2021-03-25 09:33:34,153 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:33:34,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:33:34,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:33:34,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:33:34,154 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 135 [2021-03-25 09:33:34,154 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 489 places, 595 transitions, 16872 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:34,154 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:33:34,154 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 135 [2021-03-25 09:33:34,154 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:33:35,043 INFO L129 PetriNetUnfolder]: 603/1498 cut-off events. [2021-03-25 09:33:35,043 INFO L130 PetriNetUnfolder]: For 62669/62675 co-relation queries the response was YES. [2021-03-25 09:33:35,060 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16117 conditions, 1498 events. 603/1498 cut-off events. For 62669/62675 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 10956 event pairs, 8 based on Foata normal form. 8/1290 useless extension candidates. Maximal degree in co-relation 15898. Up to 741 conditions per place. [2021-03-25 09:33:35,066 INFO L132 encePairwiseOnDemand]: 116/135 looper letters, 457 selfloop transitions, 112 changer transitions 32/619 dead transitions. [2021-03-25 09:33:35,066 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 502 places, 619 transitions, 18774 flow [2021-03-25 09:33:35,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:33:35,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:33:35,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 766 transitions. [2021-03-25 09:33:35,067 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4052910052910053 [2021-03-25 09:33:35,067 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 766 transitions. [2021-03-25 09:33:35,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 766 transitions. [2021-03-25 09:33:35,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:33:35,068 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 766 transitions. [2021-03-25 09:33:35,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 54.714285714285715) internal successors, (766), 14 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:35,069 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 135.0) internal successors, (2025), 15 states have internal predecessors, (2025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:35,069 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 135.0) internal successors, (2025), 15 states have internal predecessors, (2025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:35,069 INFO L185 Difference]: Start difference. First operand has 489 places, 595 transitions, 16872 flow. Second operand 14 states and 766 transitions. [2021-03-25 09:33:35,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 502 places, 619 transitions, 18774 flow [2021-03-25 09:33:35,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 497 places, 619 transitions, 18513 flow, removed 94 selfloop flow, removed 5 redundant places. [2021-03-25 09:33:35,631 INFO L241 Difference]: Finished difference. Result has 503 places, 574 transitions, 16484 flow [2021-03-25 09:33:35,632 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=16683, PETRI_DIFFERENCE_MINUEND_PLACES=484, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=595, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=106, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=485, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=16484, PETRI_PLACES=503, PETRI_TRANSITIONS=574} [2021-03-25 09:33:35,632 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 442 predicate places. [2021-03-25 09:33:35,632 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:33:35,632 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 503 places, 574 transitions, 16484 flow [2021-03-25 09:33:35,632 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 503 places, 574 transitions, 16484 flow [2021-03-25 09:33:35,638 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 501 places, 574 transitions, 16484 flow [2021-03-25 09:33:35,887 INFO L129 PetriNetUnfolder]: 527/1326 cut-off events. [2021-03-25 09:33:35,888 INFO L130 PetriNetUnfolder]: For 63419/63444 co-relation queries the response was YES. [2021-03-25 09:33:35,905 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14364 conditions, 1326 events. 527/1326 cut-off events. For 63419/63444 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 9705 event pairs, 5 based on Foata normal form. 1/1137 useless extension candidates. Maximal degree in co-relation 14145. Up to 278 conditions per place. [2021-03-25 09:33:35,921 INFO L142 LiptonReduction]: Number of co-enabled transitions 1992 [2021-03-25 09:33:35,958 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:33:35,959 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:33:35,959 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 327 [2021-03-25 09:33:35,959 INFO L480 AbstractCegarLoop]: Abstraction has has 501 places, 574 transitions, 16484 flow [2021-03-25 09:33:35,959 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:35,959 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:33:35,959 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:33:35,959 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2021-03-25 09:33:35,959 INFO L428 AbstractCegarLoop]: === Iteration 162 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:33:35,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:33:35,959 INFO L82 PathProgramCache]: Analyzing trace with hash 820438224, now seen corresponding path program 16 times [2021-03-25 09:33:35,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:33:35,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033614853] [2021-03-25 09:33:35,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:33:35,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:33:35,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:35,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:33:35,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:35,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:33:35,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:35,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:35,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:35,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:35,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:35,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:35,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:35,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:33:36,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:36,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:36,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:36,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:36,035 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:33:36,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:33:36,049 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:33:36,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:36,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:33:36,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033614853] [2021-03-25 09:33:36,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:33:36,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:33:36,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284915994] [2021-03-25 09:33:36,051 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:33:36,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:33:36,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:33:36,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:33:36,052 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 135 [2021-03-25 09:33:36,052 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 501 places, 574 transitions, 16484 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:36,052 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:33:36,052 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 135 [2021-03-25 09:33:36,052 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:33:36,831 INFO L129 PetriNetUnfolder]: 581/1427 cut-off events. [2021-03-25 09:33:36,831 INFO L130 PetriNetUnfolder]: For 61326/61332 co-relation queries the response was YES. [2021-03-25 09:33:36,852 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15578 conditions, 1427 events. 581/1427 cut-off events. For 61326/61332 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 10196 event pairs, 7 based on Foata normal form. 7/1230 useless extension candidates. Maximal degree in co-relation 15345. Up to 738 conditions per place. [2021-03-25 09:33:36,859 INFO L132 encePairwiseOnDemand]: 116/135 looper letters, 475 selfloop transitions, 89 changer transitions 7/589 dead transitions. [2021-03-25 09:33:36,859 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 514 places, 589 transitions, 17837 flow [2021-03-25 09:33:36,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:33:36,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:33:36,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 758 transitions. [2021-03-25 09:33:36,860 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.40105820105820106 [2021-03-25 09:33:36,860 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 758 transitions. [2021-03-25 09:33:36,860 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 758 transitions. [2021-03-25 09:33:36,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:33:36,860 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 758 transitions. [2021-03-25 09:33:36,861 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 54.142857142857146) internal successors, (758), 14 states have internal predecessors, (758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:36,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 135.0) internal successors, (2025), 15 states have internal predecessors, (2025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:36,862 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 135.0) internal successors, (2025), 15 states have internal predecessors, (2025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:36,862 INFO L185 Difference]: Start difference. First operand has 501 places, 574 transitions, 16484 flow. Second operand 14 states and 758 transitions. [2021-03-25 09:33:36,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 514 places, 589 transitions, 17837 flow [2021-03-25 09:33:37,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 500 places, 589 transitions, 17458 flow, removed 106 selfloop flow, removed 14 redundant places. [2021-03-25 09:33:37,488 INFO L241 Difference]: Finished difference. Result has 503 places, 572 transitions, 16194 flow [2021-03-25 09:33:37,489 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=16107, PETRI_DIFFERENCE_MINUEND_PLACES=487, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=574, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=485, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=16194, PETRI_PLACES=503, PETRI_TRANSITIONS=572} [2021-03-25 09:33:37,489 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 442 predicate places. [2021-03-25 09:33:37,489 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:33:37,489 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 503 places, 572 transitions, 16194 flow [2021-03-25 09:33:37,489 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 503 places, 572 transitions, 16194 flow [2021-03-25 09:33:37,494 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 502 places, 572 transitions, 16194 flow [2021-03-25 09:33:37,754 INFO L129 PetriNetUnfolder]: 525/1323 cut-off events. [2021-03-25 09:33:37,754 INFO L130 PetriNetUnfolder]: For 62757/62778 co-relation queries the response was YES. [2021-03-25 09:33:37,773 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14209 conditions, 1323 events. 525/1323 cut-off events. For 62757/62778 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 9623 event pairs, 7 based on Foata normal form. 1/1134 useless extension candidates. Maximal degree in co-relation 13990. Up to 271 conditions per place. [2021-03-25 09:33:37,792 INFO L142 LiptonReduction]: Number of co-enabled transitions 2006 [2021-03-25 09:33:37,830 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:33:37,830 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:33:37,830 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 341 [2021-03-25 09:33:37,830 INFO L480 AbstractCegarLoop]: Abstraction has has 502 places, 572 transitions, 16194 flow [2021-03-25 09:33:37,830 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:37,830 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:33:37,830 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:33:37,831 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2021-03-25 09:33:37,831 INFO L428 AbstractCegarLoop]: === Iteration 163 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:33:37,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:33:37,831 INFO L82 PathProgramCache]: Analyzing trace with hash -343822672, now seen corresponding path program 17 times [2021-03-25 09:33:37,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:33:37,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999220459] [2021-03-25 09:33:37,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:33:37,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:33:37,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:37,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:33:37,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:37,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:33:37,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:37,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:37,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:37,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:37,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:37,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:37,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:37,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:33:37,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:37,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:37,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:37,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:37,910 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:33:37,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:33:37,924 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:33:37,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:37,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:33:37,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999220459] [2021-03-25 09:33:37,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:33:37,926 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:33:37,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044943787] [2021-03-25 09:33:37,927 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:33:37,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:33:37,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:33:37,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:33:37,927 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 135 [2021-03-25 09:33:37,927 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 502 places, 572 transitions, 16194 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:37,928 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:33:37,928 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 135 [2021-03-25 09:33:37,928 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:33:38,705 INFO L129 PetriNetUnfolder]: 573/1405 cut-off events. [2021-03-25 09:33:38,706 INFO L130 PetriNetUnfolder]: For 60035/60050 co-relation queries the response was YES. [2021-03-25 09:33:38,722 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15334 conditions, 1405 events. 573/1405 cut-off events. For 60035/60050 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 10070 event pairs, 7 based on Foata normal form. 16/1223 useless extension candidates. Maximal degree in co-relation 15095. Up to 759 conditions per place. [2021-03-25 09:33:38,728 INFO L132 encePairwiseOnDemand]: 118/135 looper letters, 491 selfloop transitions, 54 changer transitions 18/581 dead transitions. [2021-03-25 09:33:38,728 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 515 places, 581 transitions, 17444 flow [2021-03-25 09:33:38,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:33:38,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:33:38,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 747 transitions. [2021-03-25 09:33:38,729 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3952380952380952 [2021-03-25 09:33:38,729 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 747 transitions. [2021-03-25 09:33:38,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 747 transitions. [2021-03-25 09:33:38,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:33:38,730 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 747 transitions. [2021-03-25 09:33:38,730 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 53.357142857142854) internal successors, (747), 14 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:38,731 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 135.0) internal successors, (2025), 15 states have internal predecessors, (2025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:38,731 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 135.0) internal successors, (2025), 15 states have internal predecessors, (2025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:38,731 INFO L185 Difference]: Start difference. First operand has 502 places, 572 transitions, 16194 flow. Second operand 14 states and 747 transitions. [2021-03-25 09:33:38,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 515 places, 581 transitions, 17444 flow [2021-03-25 09:33:39,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 503 places, 581 transitions, 17196 flow, removed 34 selfloop flow, removed 12 redundant places. [2021-03-25 09:33:39,307 INFO L241 Difference]: Finished difference. Result has 505 places, 556 transitions, 15712 flow [2021-03-25 09:33:39,307 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=15948, PETRI_DIFFERENCE_MINUEND_PLACES=490, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=572, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=518, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=15712, PETRI_PLACES=505, PETRI_TRANSITIONS=556} [2021-03-25 09:33:39,307 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 444 predicate places. [2021-03-25 09:33:39,307 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:33:39,307 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 505 places, 556 transitions, 15712 flow [2021-03-25 09:33:39,307 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 505 places, 556 transitions, 15712 flow [2021-03-25 09:33:39,313 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 501 places, 556 transitions, 15712 flow [2021-03-25 09:33:39,546 INFO L129 PetriNetUnfolder]: 507/1257 cut-off events. [2021-03-25 09:33:39,546 INFO L130 PetriNetUnfolder]: For 59475/59496 co-relation queries the response was YES. [2021-03-25 09:33:39,564 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13776 conditions, 1257 events. 507/1257 cut-off events. For 59475/59496 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 8883 event pairs, 6 based on Foata normal form. 1/1083 useless extension candidates. Maximal degree in co-relation 13562. Up to 265 conditions per place. [2021-03-25 09:33:39,581 INFO L142 LiptonReduction]: Number of co-enabled transitions 1894 [2021-03-25 09:33:39,617 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:33:39,617 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:33:39,617 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 310 [2021-03-25 09:33:39,617 INFO L480 AbstractCegarLoop]: Abstraction has has 501 places, 556 transitions, 15712 flow [2021-03-25 09:33:39,617 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:39,617 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:33:39,617 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:33:39,618 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2021-03-25 09:33:39,618 INFO L428 AbstractCegarLoop]: === Iteration 164 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:33:39,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:33:39,618 INFO L82 PathProgramCache]: Analyzing trace with hash -817134232, now seen corresponding path program 18 times [2021-03-25 09:33:39,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:33:39,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858402920] [2021-03-25 09:33:39,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:33:39,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:33:39,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:39,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:33:39,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:39,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:33:39,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:39,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:39,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:39,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:39,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:39,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:39,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:39,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:33:39,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:39,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:39,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:39,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:39,696 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:33:39,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:33:39,710 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:33:39,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:39,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:33:39,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858402920] [2021-03-25 09:33:39,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:33:39,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:33:39,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87268913] [2021-03-25 09:33:39,712 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:33:39,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:33:39,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:33:39,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:33:39,713 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 135 [2021-03-25 09:33:39,713 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 501 places, 556 transitions, 15712 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:39,713 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:33:39,713 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 135 [2021-03-25 09:33:39,713 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:33:40,450 INFO L129 PetriNetUnfolder]: 550/1320 cut-off events. [2021-03-25 09:33:40,450 INFO L130 PetriNetUnfolder]: For 57685/57689 co-relation queries the response was YES. [2021-03-25 09:33:40,468 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14929 conditions, 1320 events. 550/1320 cut-off events. For 57685/57689 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 9097 event pairs, 8 based on Foata normal form. 5/1149 useless extension candidates. Maximal degree in co-relation 14705. Up to 704 conditions per place. [2021-03-25 09:33:40,475 INFO L132 encePairwiseOnDemand]: 115/135 looper letters, 440 selfloop transitions, 102 changer transitions 9/569 dead transitions. [2021-03-25 09:33:40,475 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 514 places, 569 transitions, 17026 flow [2021-03-25 09:33:40,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:33:40,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:33:40,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 758 transitions. [2021-03-25 09:33:40,476 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.40105820105820106 [2021-03-25 09:33:40,476 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 758 transitions. [2021-03-25 09:33:40,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 758 transitions. [2021-03-25 09:33:40,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:33:40,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 758 transitions. [2021-03-25 09:33:40,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 54.142857142857146) internal successors, (758), 14 states have internal predecessors, (758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:40,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 135.0) internal successors, (2025), 15 states have internal predecessors, (2025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:40,477 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 135.0) internal successors, (2025), 15 states have internal predecessors, (2025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:40,478 INFO L185 Difference]: Start difference. First operand has 501 places, 556 transitions, 15712 flow. Second operand 14 states and 758 transitions. [2021-03-25 09:33:40,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 514 places, 569 transitions, 17026 flow [2021-03-25 09:33:41,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 494 places, 569 transitions, 16730 flow, removed 45 selfloop flow, removed 20 redundant places. [2021-03-25 09:33:41,027 INFO L241 Difference]: Finished difference. Result has 498 places, 551 transitions, 15496 flow [2021-03-25 09:33:41,027 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=15416, PETRI_DIFFERENCE_MINUEND_PLACES=481, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=556, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=99, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=15496, PETRI_PLACES=498, PETRI_TRANSITIONS=551} [2021-03-25 09:33:41,028 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 437 predicate places. [2021-03-25 09:33:41,028 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:33:41,028 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 498 places, 551 transitions, 15496 flow [2021-03-25 09:33:41,028 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 498 places, 551 transitions, 15496 flow [2021-03-25 09:33:41,033 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 496 places, 551 transitions, 15496 flow [2021-03-25 09:33:41,253 INFO L129 PetriNetUnfolder]: 502/1233 cut-off events. [2021-03-25 09:33:41,253 INFO L130 PetriNetUnfolder]: For 57991/58012 co-relation queries the response was YES. [2021-03-25 09:33:41,269 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13563 conditions, 1233 events. 502/1233 cut-off events. For 57991/58012 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 8610 event pairs, 8 based on Foata normal form. 1/1064 useless extension candidates. Maximal degree in co-relation 13351. Up to 264 conditions per place. [2021-03-25 09:33:41,285 INFO L142 LiptonReduction]: Number of co-enabled transitions 1872 [2021-03-25 09:33:41,321 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:33:41,321 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:33:41,321 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 293 [2021-03-25 09:33:41,321 INFO L480 AbstractCegarLoop]: Abstraction has has 496 places, 551 transitions, 15496 flow [2021-03-25 09:33:41,321 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:41,321 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:33:41,321 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:33:41,321 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2021-03-25 09:33:41,322 INFO L428 AbstractCegarLoop]: === Iteration 165 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:33:41,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:33:41,322 INFO L82 PathProgramCache]: Analyzing trace with hash -264732336, now seen corresponding path program 19 times [2021-03-25 09:33:41,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:33:41,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596743090] [2021-03-25 09:33:41,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:33:41,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:33:41,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:41,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:33:41,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:41,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:33:41,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:41,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:41,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:41,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:41,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:41,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:41,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:41,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:33:41,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:41,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:41,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:41,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:41,403 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:33:41,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:33:41,417 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:33:41,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:41,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:33:41,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596743090] [2021-03-25 09:33:41,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:33:41,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:33:41,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666497000] [2021-03-25 09:33:41,419 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:33:41,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:33:41,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:33:41,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:33:41,420 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 135 [2021-03-25 09:33:41,420 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 496 places, 551 transitions, 15496 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:41,420 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:33:41,420 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 135 [2021-03-25 09:33:41,420 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:33:42,055 INFO L129 PetriNetUnfolder]: 547/1308 cut-off events. [2021-03-25 09:33:42,055 INFO L130 PetriNetUnfolder]: For 55241/55247 co-relation queries the response was YES. [2021-03-25 09:33:42,073 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14698 conditions, 1308 events. 547/1308 cut-off events. For 55241/55247 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 8961 event pairs, 7 based on Foata normal form. 7/1140 useless extension candidates. Maximal degree in co-relation 14476. Up to 709 conditions per place. [2021-03-25 09:33:42,078 INFO L132 encePairwiseOnDemand]: 118/135 looper letters, 446 selfloop transitions, 88 changer transitions 10/562 dead transitions. [2021-03-25 09:33:42,078 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 507 places, 562 transitions, 16691 flow [2021-03-25 09:33:42,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:33:42,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:33:42,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 646 transitions. [2021-03-25 09:33:42,080 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3987654320987654 [2021-03-25 09:33:42,080 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 646 transitions. [2021-03-25 09:33:42,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 646 transitions. [2021-03-25 09:33:42,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:33:42,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 646 transitions. [2021-03-25 09:33:42,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 53.833333333333336) internal successors, (646), 12 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:42,081 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 135.0) internal successors, (1755), 13 states have internal predecessors, (1755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:42,081 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 135.0) internal successors, (1755), 13 states have internal predecessors, (1755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:42,081 INFO L185 Difference]: Start difference. First operand has 496 places, 551 transitions, 15496 flow. Second operand 12 states and 646 transitions. [2021-03-25 09:33:42,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 507 places, 562 transitions, 16691 flow [2021-03-25 09:33:42,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 486 places, 562 transitions, 16343 flow, removed 8 selfloop flow, removed 21 redundant places. [2021-03-25 09:33:42,599 INFO L241 Difference]: Finished difference. Result has 488 places, 543 transitions, 15152 flow [2021-03-25 09:33:42,599 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=15148, PETRI_DIFFERENCE_MINUEND_PLACES=475, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=551, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=463, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=15152, PETRI_PLACES=488, PETRI_TRANSITIONS=543} [2021-03-25 09:33:42,599 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 427 predicate places. [2021-03-25 09:33:42,599 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:33:42,599 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 488 places, 543 transitions, 15152 flow [2021-03-25 09:33:42,599 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 488 places, 543 transitions, 15152 flow [2021-03-25 09:33:42,604 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 481 places, 543 transitions, 15152 flow [2021-03-25 09:33:42,815 INFO L129 PetriNetUnfolder]: 491/1204 cut-off events. [2021-03-25 09:33:42,815 INFO L130 PetriNetUnfolder]: For 54564/54590 co-relation queries the response was YES. [2021-03-25 09:33:42,831 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13161 conditions, 1204 events. 491/1204 cut-off events. For 54564/54590 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 8448 event pairs, 8 based on Foata normal form. 4/1043 useless extension candidates. Maximal degree in co-relation 12949. Up to 260 conditions per place. [2021-03-25 09:33:42,847 INFO L142 LiptonReduction]: Number of co-enabled transitions 1838 [2021-03-25 09:33:42,962 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 09:33:42,962 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 09:33:42,962 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 363 [2021-03-25 09:33:42,962 INFO L480 AbstractCegarLoop]: Abstraction has has 481 places, 543 transitions, 15162 flow [2021-03-25 09:33:42,962 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:42,963 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:33:42,963 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:33:42,963 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2021-03-25 09:33:42,963 INFO L428 AbstractCegarLoop]: === Iteration 166 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:33:42,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:33:42,963 INFO L82 PathProgramCache]: Analyzing trace with hash 1975819502, now seen corresponding path program 1 times [2021-03-25 09:33:42,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:33:42,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025244268] [2021-03-25 09:33:42,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:33:42,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:33:42,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:42,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:33:42,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:42,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:33:42,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:42,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:42,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:42,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:33:42,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:42,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:42,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:42,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:43,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:43,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:43,007 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 09:33:43,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:33:43,019 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:33:43,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:33:43,032 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:33:43,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:43,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:33:43,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025244268] [2021-03-25 09:33:43,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:33:43,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:33:43,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735747921] [2021-03-25 09:33:43,035 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:33:43,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:33:43,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:33:43,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:33:43,035 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 137 [2021-03-25 09:33:43,035 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 481 places, 543 transitions, 15162 flow. Second operand has 9 states, 9 states have (on average 49.333333333333336) internal successors, (444), 9 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:43,035 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:33:43,035 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 137 [2021-03-25 09:33:43,036 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:33:43,633 INFO L129 PetriNetUnfolder]: 544/1294 cut-off events. [2021-03-25 09:33:43,633 INFO L130 PetriNetUnfolder]: For 56201/56216 co-relation queries the response was YES. [2021-03-25 09:33:43,651 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14523 conditions, 1294 events. 544/1294 cut-off events. For 56201/56216 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 8879 event pairs, 6 based on Foata normal form. 16/1136 useless extension candidates. Maximal degree in co-relation 14302. Up to 720 conditions per place. [2021-03-25 09:33:43,657 INFO L132 encePairwiseOnDemand]: 120/137 looper letters, 465 selfloop transitions, 67 changer transitions 3/553 dead transitions. [2021-03-25 09:33:43,657 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 490 places, 553 transitions, 16371 flow [2021-03-25 09:33:43,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:33:43,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:33:43,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 546 transitions. [2021-03-25 09:33:43,658 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.39854014598540144 [2021-03-25 09:33:43,658 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 546 transitions. [2021-03-25 09:33:43,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 546 transitions. [2021-03-25 09:33:43,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:33:43,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 546 transitions. [2021-03-25 09:33:43,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 54.6) internal successors, (546), 10 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:43,659 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:43,659 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:43,659 INFO L185 Difference]: Start difference. First operand has 481 places, 543 transitions, 15162 flow. Second operand 10 states and 546 transitions. [2021-03-25 09:33:43,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 490 places, 553 transitions, 16371 flow [2021-03-25 09:33:44,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 553 transitions, 16024 flow, removed 37 selfloop flow, removed 15 redundant places. [2021-03-25 09:33:44,126 INFO L241 Difference]: Finished difference. Result has 478 places, 542 transitions, 14955 flow [2021-03-25 09:33:44,126 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=14815, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=543, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=476, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=14955, PETRI_PLACES=478, PETRI_TRANSITIONS=542} [2021-03-25 09:33:44,126 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 417 predicate places. [2021-03-25 09:33:44,126 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:33:44,127 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 478 places, 542 transitions, 14955 flow [2021-03-25 09:33:44,127 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 478 places, 542 transitions, 14955 flow [2021-03-25 09:33:44,132 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 477 places, 542 transitions, 14955 flow [2021-03-25 09:33:44,346 INFO L129 PetriNetUnfolder]: 489/1196 cut-off events. [2021-03-25 09:33:44,346 INFO L130 PetriNetUnfolder]: For 56408/56429 co-relation queries the response was YES. [2021-03-25 09:33:44,363 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13235 conditions, 1196 events. 489/1196 cut-off events. For 56408/56429 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 8344 event pairs, 5 based on Foata normal form. 1/1038 useless extension candidates. Maximal degree in co-relation 13025. Up to 259 conditions per place. [2021-03-25 09:33:44,379 INFO L142 LiptonReduction]: Number of co-enabled transitions 1838 [2021-03-25 09:33:44,414 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:33:44,414 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:33:44,414 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 288 [2021-03-25 09:33:44,414 INFO L480 AbstractCegarLoop]: Abstraction has has 477 places, 542 transitions, 14955 flow [2021-03-25 09:33:44,414 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 49.333333333333336) internal successors, (444), 9 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:44,414 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:33:44,414 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:33:44,414 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2021-03-25 09:33:44,415 INFO L428 AbstractCegarLoop]: === Iteration 167 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:33:44,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:33:44,415 INFO L82 PathProgramCache]: Analyzing trace with hash -748806171, now seen corresponding path program 1 times [2021-03-25 09:33:44,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:33:44,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969241040] [2021-03-25 09:33:44,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:33:44,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:33:44,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:44,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:33:44,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:44,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:33:44,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:44,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:44,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:44,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:44,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:44,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:44,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:44,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:44,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:44,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:44,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:44,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:44,470 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:33:44,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:33:44,474 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:33:44,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:44,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:33:44,476 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969241040] [2021-03-25 09:33:44,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:33:44,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 09:33:44,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972482158] [2021-03-25 09:33:44,476 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 09:33:44,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:33:44,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 09:33:44,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-03-25 09:33:44,477 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 137 [2021-03-25 09:33:44,477 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 477 places, 542 transitions, 14955 flow. Second operand has 8 states, 8 states have (on average 49.5) internal successors, (396), 8 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:44,477 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:33:44,477 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 137 [2021-03-25 09:33:44,477 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:33:44,995 INFO L129 PetriNetUnfolder]: 539/1283 cut-off events. [2021-03-25 09:33:44,995 INFO L130 PetriNetUnfolder]: For 55447/55462 co-relation queries the response was YES. [2021-03-25 09:33:45,014 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14381 conditions, 1283 events. 539/1283 cut-off events. For 55447/55462 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 8803 event pairs, 5 based on Foata normal form. 12/1125 useless extension candidates. Maximal degree in co-relation 14161. Up to 745 conditions per place. [2021-03-25 09:33:45,020 INFO L132 encePairwiseOnDemand]: 123/137 looper letters, 488 selfloop transitions, 42 changer transitions 0/548 dead transitions. [2021-03-25 09:33:45,020 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 484 places, 548 transitions, 16113 flow [2021-03-25 09:33:45,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 09:33:45,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 09:33:45,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 445 transitions. [2021-03-25 09:33:45,021 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.40602189781021897 [2021-03-25 09:33:45,021 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 445 transitions. [2021-03-25 09:33:45,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 445 transitions. [2021-03-25 09:33:45,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:33:45,021 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 445 transitions. [2021-03-25 09:33:45,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 55.625) internal successors, (445), 8 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:45,022 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 137.0) internal successors, (1233), 9 states have internal predecessors, (1233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:45,022 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 137.0) internal successors, (1233), 9 states have internal predecessors, (1233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:45,022 INFO L185 Difference]: Start difference. First operand has 477 places, 542 transitions, 14955 flow. Second operand 8 states and 445 transitions. [2021-03-25 09:33:45,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 484 places, 548 transitions, 16113 flow [2021-03-25 09:33:45,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 474 places, 548 transitions, 15959 flow, removed 3 selfloop flow, removed 10 redundant places. [2021-03-25 09:33:45,502 INFO L241 Difference]: Finished difference. Result has 476 places, 543 transitions, 14984 flow [2021-03-25 09:33:45,502 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=14801, PETRI_DIFFERENCE_MINUEND_PLACES=467, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=542, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=500, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=14984, PETRI_PLACES=476, PETRI_TRANSITIONS=543} [2021-03-25 09:33:45,502 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 415 predicate places. [2021-03-25 09:33:45,503 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:33:45,503 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 476 places, 543 transitions, 14984 flow [2021-03-25 09:33:45,503 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 476 places, 543 transitions, 14984 flow [2021-03-25 09:33:45,508 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 476 places, 543 transitions, 14984 flow [2021-03-25 09:33:45,727 INFO L129 PetriNetUnfolder]: 488/1198 cut-off events. [2021-03-25 09:33:45,727 INFO L130 PetriNetUnfolder]: For 55962/55982 co-relation queries the response was YES. [2021-03-25 09:33:45,744 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13248 conditions, 1198 events. 488/1198 cut-off events. For 55962/55982 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 8336 event pairs, 6 based on Foata normal form. 0/1039 useless extension candidates. Maximal degree in co-relation 13039. Up to 260 conditions per place. [2021-03-25 09:33:45,760 INFO L142 LiptonReduction]: Number of co-enabled transitions 1850 [2021-03-25 09:33:45,794 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:33:45,795 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:33:45,795 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 292 [2021-03-25 09:33:45,795 INFO L480 AbstractCegarLoop]: Abstraction has has 476 places, 543 transitions, 14984 flow [2021-03-25 09:33:45,795 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 49.5) internal successors, (396), 8 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:45,795 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:33:45,795 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:33:45,795 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2021-03-25 09:33:45,795 INFO L428 AbstractCegarLoop]: === Iteration 168 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:33:45,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:33:45,795 INFO L82 PathProgramCache]: Analyzing trace with hash -416829677, now seen corresponding path program 2 times [2021-03-25 09:33:45,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:33:45,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983128017] [2021-03-25 09:33:45,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:33:45,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:33:45,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:45,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:33:45,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:45,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:33:45,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:45,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:45,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:45,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:45,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:45,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:45,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:45,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:45,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:45,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:45,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:45,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:45,870 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:33:45,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:33:45,883 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:33:45,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:45,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:33:45,886 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983128017] [2021-03-25 09:33:45,886 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:33:45,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:33:45,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919823959] [2021-03-25 09:33:45,886 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:33:45,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:33:45,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:33:45,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:33:45,887 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 137 [2021-03-25 09:33:45,887 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 476 places, 543 transitions, 14984 flow. Second operand has 9 states, 9 states have (on average 49.333333333333336) internal successors, (444), 9 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:45,887 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:33:45,887 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 137 [2021-03-25 09:33:45,887 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:33:46,436 INFO L129 PetriNetUnfolder]: 536/1277 cut-off events. [2021-03-25 09:33:46,436 INFO L130 PetriNetUnfolder]: For 56370/56383 co-relation queries the response was YES. [2021-03-25 09:33:46,454 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14388 conditions, 1277 events. 536/1277 cut-off events. For 56370/56383 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 8671 event pairs, 19 based on Foata normal form. 14/1123 useless extension candidates. Maximal degree in co-relation 14169. Up to 700 conditions per place. [2021-03-25 09:33:46,459 INFO L132 encePairwiseOnDemand]: 119/137 looper letters, 434 selfloop transitions, 93 changer transitions 6/551 dead transitions. [2021-03-25 09:33:46,459 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 484 places, 551 transitions, 16172 flow [2021-03-25 09:33:46,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 09:33:46,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 09:33:46,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 505 transitions. [2021-03-25 09:33:46,460 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4095701540957015 [2021-03-25 09:33:46,460 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 505 transitions. [2021-03-25 09:33:46,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 505 transitions. [2021-03-25 09:33:46,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:33:46,461 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 505 transitions. [2021-03-25 09:33:46,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 56.111111111111114) internal successors, (505), 9 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:46,461 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 137.0) internal successors, (1370), 10 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:46,461 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 137.0) internal successors, (1370), 10 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:46,461 INFO L185 Difference]: Start difference. First operand has 476 places, 543 transitions, 14984 flow. Second operand 9 states and 505 transitions. [2021-03-25 09:33:46,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 484 places, 551 transitions, 16172 flow [2021-03-25 09:33:46,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 479 places, 551 transitions, 16051 flow, removed 30 selfloop flow, removed 5 redundant places. [2021-03-25 09:33:46,996 INFO L241 Difference]: Finished difference. Result has 481 places, 538 transitions, 15044 flow [2021-03-25 09:33:46,997 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=14863, PETRI_DIFFERENCE_MINUEND_PLACES=471, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=543, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=450, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=15044, PETRI_PLACES=481, PETRI_TRANSITIONS=538} [2021-03-25 09:33:46,997 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 420 predicate places. [2021-03-25 09:33:46,997 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:33:46,997 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 481 places, 538 transitions, 15044 flow [2021-03-25 09:33:46,997 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 481 places, 538 transitions, 15044 flow [2021-03-25 09:33:47,002 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 479 places, 538 transitions, 15044 flow [2021-03-25 09:33:47,222 INFO L129 PetriNetUnfolder]: 488/1192 cut-off events. [2021-03-25 09:33:47,222 INFO L130 PetriNetUnfolder]: For 58711/58737 co-relation queries the response was YES. [2021-03-25 09:33:47,240 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13315 conditions, 1192 events. 488/1192 cut-off events. For 58711/58737 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 8282 event pairs, 4 based on Foata normal form. 2/1034 useless extension candidates. Maximal degree in co-relation 13122. Up to 259 conditions per place. [2021-03-25 09:33:47,258 INFO L142 LiptonReduction]: Number of co-enabled transitions 1800 [2021-03-25 09:33:47,291 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:33:47,292 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:33:47,292 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 295 [2021-03-25 09:33:47,292 INFO L480 AbstractCegarLoop]: Abstraction has has 479 places, 538 transitions, 15044 flow [2021-03-25 09:33:47,292 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 49.333333333333336) internal successors, (444), 9 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:47,292 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:33:47,292 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:33:47,292 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2021-03-25 09:33:47,292 INFO L428 AbstractCegarLoop]: === Iteration 169 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:33:47,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:33:47,292 INFO L82 PathProgramCache]: Analyzing trace with hash -414779299, now seen corresponding path program 1 times [2021-03-25 09:33:47,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:33:47,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435583635] [2021-03-25 09:33:47,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:33:47,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:33:47,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:47,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:33:47,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:47,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:33:47,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:47,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:47,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:47,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:33:47,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:47,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:47,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:47,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:33:47,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:47,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:47,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:47,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:47,375 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:33:47,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:33:47,389 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:33:47,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:47,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:33:47,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435583635] [2021-03-25 09:33:47,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:33:47,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:33:47,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245978554] [2021-03-25 09:33:47,392 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:33:47,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:33:47,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:33:47,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:33:47,393 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 137 [2021-03-25 09:33:47,393 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 479 places, 538 transitions, 15044 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:47,393 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:33:47,393 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 137 [2021-03-25 09:33:47,393 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:33:48,106 INFO L129 PetriNetUnfolder]: 543/1291 cut-off events. [2021-03-25 09:33:48,106 INFO L130 PetriNetUnfolder]: For 56966/56972 co-relation queries the response was YES. [2021-03-25 09:33:48,125 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14680 conditions, 1291 events. 543/1291 cut-off events. For 56966/56972 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 8881 event pairs, 5 based on Foata normal form. 7/1126 useless extension candidates. Maximal degree in co-relation 14485. Up to 720 conditions per place. [2021-03-25 09:33:48,132 INFO L132 encePairwiseOnDemand]: 116/137 looper letters, 448 selfloop transitions, 88 changer transitions 0/554 dead transitions. [2021-03-25 09:33:48,132 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 491 places, 554 transitions, 16629 flow [2021-03-25 09:33:48,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:33:48,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:33:48,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 706 transitions. [2021-03-25 09:33:48,133 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3964065131948344 [2021-03-25 09:33:48,133 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 706 transitions. [2021-03-25 09:33:48,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 706 transitions. [2021-03-25 09:33:48,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:33:48,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 706 transitions. [2021-03-25 09:33:48,134 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 54.30769230769231) internal successors, (706), 13 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:48,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:48,134 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:48,134 INFO L185 Difference]: Start difference. First operand has 479 places, 538 transitions, 15044 flow. Second operand 13 states and 706 transitions. [2021-03-25 09:33:48,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 491 places, 554 transitions, 16629 flow [2021-03-25 09:33:48,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 476 places, 554 transitions, 16273 flow, removed 9 selfloop flow, removed 15 redundant places. [2021-03-25 09:33:48,608 INFO L241 Difference]: Finished difference. Result has 479 places, 546 transitions, 15364 flow [2021-03-25 09:33:48,608 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=14696, PETRI_DIFFERENCE_MINUEND_PLACES=464, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=538, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=452, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=15364, PETRI_PLACES=479, PETRI_TRANSITIONS=546} [2021-03-25 09:33:48,608 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 418 predicate places. [2021-03-25 09:33:48,608 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:33:48,608 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 479 places, 546 transitions, 15364 flow [2021-03-25 09:33:48,608 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 479 places, 546 transitions, 15364 flow [2021-03-25 09:33:48,613 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 479 places, 546 transitions, 15364 flow [2021-03-25 09:33:48,825 INFO L129 PetriNetUnfolder]: 491/1209 cut-off events. [2021-03-25 09:33:48,825 INFO L130 PetriNetUnfolder]: For 57999/58002 co-relation queries the response was YES. [2021-03-25 09:33:48,841 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13371 conditions, 1209 events. 491/1209 cut-off events. For 57999/58002 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 8446 event pairs, 10 based on Foata normal form. 1/1049 useless extension candidates. Maximal degree in co-relation 13162. Up to 265 conditions per place. [2021-03-25 09:33:48,857 INFO L142 LiptonReduction]: Number of co-enabled transitions 1852 [2021-03-25 09:33:48,892 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:33:48,892 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:33:48,892 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 284 [2021-03-25 09:33:48,892 INFO L480 AbstractCegarLoop]: Abstraction has has 479 places, 546 transitions, 15364 flow [2021-03-25 09:33:48,892 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:48,892 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:33:48,892 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:33:48,892 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2021-03-25 09:33:48,893 INFO L428 AbstractCegarLoop]: === Iteration 170 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:33:48,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:33:48,893 INFO L82 PathProgramCache]: Analyzing trace with hash -522880172, now seen corresponding path program 2 times [2021-03-25 09:33:48,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:33:48,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435267151] [2021-03-25 09:33:48,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:33:48,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:33:48,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:48,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:33:48,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:48,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:33:48,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:48,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:48,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:48,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:33:48,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:48,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:48,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:48,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:48,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:48,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:48,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:48,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:48,947 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:33:48,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:33:48,961 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:33:48,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:48,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:33:48,963 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435267151] [2021-03-25 09:33:48,963 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:33:48,963 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:33:48,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428689584] [2021-03-25 09:33:48,964 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:33:48,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:33:48,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:33:48,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:33:48,964 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 137 [2021-03-25 09:33:48,964 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 479 places, 546 transitions, 15364 flow. Second operand has 9 states, 9 states have (on average 49.333333333333336) internal successors, (444), 9 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:48,964 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:33:48,964 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 137 [2021-03-25 09:33:48,965 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:33:49,583 INFO L129 PetriNetUnfolder]: 539/1285 cut-off events. [2021-03-25 09:33:49,583 INFO L130 PetriNetUnfolder]: For 57412/57416 co-relation queries the response was YES. [2021-03-25 09:33:49,596 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14631 conditions, 1285 events. 539/1285 cut-off events. For 57412/57416 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 8740 event pairs, 20 based on Foata normal form. 5/1121 useless extension candidates. Maximal degree in co-relation 14412. Up to 715 conditions per place. [2021-03-25 09:33:49,602 INFO L132 encePairwiseOnDemand]: 121/137 looper letters, 453 selfloop transitions, 76 changer transitions 8/555 dead transitions. [2021-03-25 09:33:49,602 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 488 places, 555 transitions, 16543 flow [2021-03-25 09:33:49,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:33:49,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:33:49,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 547 transitions. [2021-03-25 09:33:49,603 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.39927007299270073 [2021-03-25 09:33:49,603 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 547 transitions. [2021-03-25 09:33:49,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 547 transitions. [2021-03-25 09:33:49,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:33:49,603 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 547 transitions. [2021-03-25 09:33:49,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 54.7) internal successors, (547), 10 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:49,604 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:49,604 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:49,604 INFO L185 Difference]: Start difference. First operand has 479 places, 546 transitions, 15364 flow. Second operand 10 states and 547 transitions. [2021-03-25 09:33:49,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 488 places, 555 transitions, 16543 flow [2021-03-25 09:33:50,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 483 places, 555 transitions, 16353 flow, removed 73 selfloop flow, removed 5 redundant places. [2021-03-25 09:33:50,050 INFO L241 Difference]: Finished difference. Result has 485 places, 539 transitions, 15080 flow [2021-03-25 09:33:50,051 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=15174, PETRI_DIFFERENCE_MINUEND_PLACES=474, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=546, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=470, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=15080, PETRI_PLACES=485, PETRI_TRANSITIONS=539} [2021-03-25 09:33:50,051 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 424 predicate places. [2021-03-25 09:33:50,051 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:33:50,051 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 485 places, 539 transitions, 15080 flow [2021-03-25 09:33:50,051 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 485 places, 539 transitions, 15080 flow [2021-03-25 09:33:50,056 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 483 places, 539 transitions, 15080 flow [2021-03-25 09:33:50,247 INFO L129 PetriNetUnfolder]: 487/1185 cut-off events. [2021-03-25 09:33:50,248 INFO L130 PetriNetUnfolder]: For 59192/59265 co-relation queries the response was YES. [2021-03-25 09:33:50,263 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13381 conditions, 1185 events. 487/1185 cut-off events. For 59192/59265 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 8088 event pairs, 4 based on Foata normal form. 1/1029 useless extension candidates. Maximal degree in co-relation 13169. Up to 260 conditions per place. [2021-03-25 09:33:50,279 INFO L142 LiptonReduction]: Number of co-enabled transitions 1828 [2021-03-25 09:33:50,314 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:33:50,314 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:33:50,314 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 263 [2021-03-25 09:33:50,314 INFO L480 AbstractCegarLoop]: Abstraction has has 483 places, 539 transitions, 15080 flow [2021-03-25 09:33:50,314 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 49.333333333333336) internal successors, (444), 9 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:50,314 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:33:50,314 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:33:50,314 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2021-03-25 09:33:50,314 INFO L428 AbstractCegarLoop]: === Iteration 171 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:33:50,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:33:50,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1098283227, now seen corresponding path program 2 times [2021-03-25 09:33:50,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:33:50,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361919909] [2021-03-25 09:33:50,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:33:50,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:33:50,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:50,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:33:50,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:50,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:33:50,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:50,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:50,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:50,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:33:50,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:50,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:50,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:50,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:50,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:50,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:50,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:50,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:50,393 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:33:50,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:33:50,406 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:33:50,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:50,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:33:50,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361919909] [2021-03-25 09:33:50,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:33:50,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:33:50,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879958982] [2021-03-25 09:33:50,409 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:33:50,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:33:50,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:33:50,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:33:50,410 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 137 [2021-03-25 09:33:50,410 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 483 places, 539 transitions, 15080 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:50,410 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:33:50,410 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 137 [2021-03-25 09:33:50,410 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:33:50,993 INFO L129 PetriNetUnfolder]: 543/1289 cut-off events. [2021-03-25 09:33:50,993 INFO L130 PetriNetUnfolder]: For 59821/59825 co-relation queries the response was YES. [2021-03-25 09:33:51,010 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14707 conditions, 1289 events. 543/1289 cut-off events. For 59821/59825 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 8749 event pairs, 17 based on Foata normal form. 5/1122 useless extension candidates. Maximal degree in co-relation 14485. Up to 727 conditions per place. [2021-03-25 09:33:51,015 INFO L132 encePairwiseOnDemand]: 118/137 looper letters, 466 selfloop transitions, 69 changer transitions 0/553 dead transitions. [2021-03-25 09:33:51,015 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 494 places, 553 transitions, 16637 flow [2021-03-25 09:33:51,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:33:51,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:33:51,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 651 transitions. [2021-03-25 09:33:51,016 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.395985401459854 [2021-03-25 09:33:51,016 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 651 transitions. [2021-03-25 09:33:51,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 651 transitions. [2021-03-25 09:33:51,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:33:51,017 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 651 transitions. [2021-03-25 09:33:51,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 54.25) internal successors, (651), 12 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:51,018 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:51,018 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:51,018 INFO L185 Difference]: Start difference. First operand has 483 places, 539 transitions, 15080 flow. Second operand 12 states and 651 transitions. [2021-03-25 09:33:51,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 494 places, 553 transitions, 16637 flow [2021-03-25 09:33:51,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 553 transitions, 16304 flow, removed 9 selfloop flow, removed 19 redundant places. [2021-03-25 09:33:51,498 INFO L241 Difference]: Finished difference. Result has 477 places, 546 transitions, 15379 flow [2021-03-25 09:33:51,498 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=14747, PETRI_DIFFERENCE_MINUEND_PLACES=464, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=539, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=473, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=15379, PETRI_PLACES=477, PETRI_TRANSITIONS=546} [2021-03-25 09:33:51,498 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 416 predicate places. [2021-03-25 09:33:51,498 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:33:51,499 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 477 places, 546 transitions, 15379 flow [2021-03-25 09:33:51,499 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 477 places, 546 transitions, 15379 flow [2021-03-25 09:33:51,504 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 477 places, 546 transitions, 15379 flow [2021-03-25 09:33:51,720 INFO L129 PetriNetUnfolder]: 500/1223 cut-off events. [2021-03-25 09:33:51,720 INFO L130 PetriNetUnfolder]: For 60847/60868 co-relation queries the response was YES. [2021-03-25 09:33:51,737 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13526 conditions, 1223 events. 500/1223 cut-off events. For 60847/60868 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 8537 event pairs, 7 based on Foata normal form. 1/1055 useless extension candidates. Maximal degree in co-relation 13319. Up to 265 conditions per place. [2021-03-25 09:33:51,754 INFO L142 LiptonReduction]: Number of co-enabled transitions 1892 [2021-03-25 09:33:51,788 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:33:51,788 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:33:51,788 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 290 [2021-03-25 09:33:51,788 INFO L480 AbstractCegarLoop]: Abstraction has has 477 places, 546 transitions, 15379 flow [2021-03-25 09:33:51,789 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:51,789 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:33:51,789 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:33:51,789 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2021-03-25 09:33:51,789 INFO L428 AbstractCegarLoop]: === Iteration 172 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:33:51,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:33:51,789 INFO L82 PathProgramCache]: Analyzing trace with hash 2011913005, now seen corresponding path program 3 times [2021-03-25 09:33:51,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:33:51,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515986381] [2021-03-25 09:33:51,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:33:51,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:33:51,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:51,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:33:51,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:51,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:33:51,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:51,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:51,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:51,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:33:51,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:51,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:51,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:51,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:51,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:51,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:51,860 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:33:51,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:33:51,872 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:33:51,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:33:51,886 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:33:51,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:51,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:33:51,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515986381] [2021-03-25 09:33:51,889 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:33:51,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:33:51,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063769549] [2021-03-25 09:33:51,889 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:33:51,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:33:51,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:33:51,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:33:51,890 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 137 [2021-03-25 09:33:51,890 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 477 places, 546 transitions, 15379 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:51,890 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:33:51,890 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 137 [2021-03-25 09:33:51,890 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:33:52,523 INFO L129 PetriNetUnfolder]: 544/1300 cut-off events. [2021-03-25 09:33:52,523 INFO L130 PetriNetUnfolder]: For 59076/59082 co-relation queries the response was YES. [2021-03-25 09:33:52,541 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14794 conditions, 1300 events. 544/1300 cut-off events. For 59076/59082 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 8953 event pairs, 7 based on Foata normal form. 7/1134 useless extension candidates. Maximal degree in co-relation 14577. Up to 722 conditions per place. [2021-03-25 09:33:52,547 INFO L132 encePairwiseOnDemand]: 120/137 looper letters, 459 selfloop transitions, 79 changer transitions 3/559 dead transitions. [2021-03-25 09:33:52,547 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 488 places, 559 transitions, 16902 flow [2021-03-25 09:33:52,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:33:52,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:33:52,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 647 transitions. [2021-03-25 09:33:52,548 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3935523114355231 [2021-03-25 09:33:52,548 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 647 transitions. [2021-03-25 09:33:52,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 647 transitions. [2021-03-25 09:33:52,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:33:52,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 647 transitions. [2021-03-25 09:33:52,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 53.916666666666664) internal successors, (647), 12 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:52,549 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:52,550 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:52,550 INFO L185 Difference]: Start difference. First operand has 477 places, 546 transitions, 15379 flow. Second operand 12 states and 647 transitions. [2021-03-25 09:33:52,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 488 places, 559 transitions, 16902 flow [2021-03-25 09:33:53,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 481 places, 559 transitions, 16644 flow, removed 97 selfloop flow, removed 7 redundant places. [2021-03-25 09:33:53,094 INFO L241 Difference]: Finished difference. Result has 485 places, 551 transitions, 15616 flow [2021-03-25 09:33:53,094 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=15121, PETRI_DIFFERENCE_MINUEND_PLACES=470, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=546, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=15616, PETRI_PLACES=485, PETRI_TRANSITIONS=551} [2021-03-25 09:33:53,094 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 424 predicate places. [2021-03-25 09:33:53,094 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:33:53,094 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 485 places, 551 transitions, 15616 flow [2021-03-25 09:33:53,094 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 485 places, 551 transitions, 15616 flow [2021-03-25 09:33:53,099 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 485 places, 551 transitions, 15616 flow [2021-03-25 09:33:53,359 INFO L129 PetriNetUnfolder]: 492/1210 cut-off events. [2021-03-25 09:33:53,359 INFO L130 PetriNetUnfolder]: For 61820/61841 co-relation queries the response was YES. [2021-03-25 09:33:53,375 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13651 conditions, 1210 events. 492/1210 cut-off events. For 61820/61841 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 8508 event pairs, 5 based on Foata normal form. 1/1049 useless extension candidates. Maximal degree in co-relation 13439. Up to 263 conditions per place. [2021-03-25 09:33:53,392 INFO L142 LiptonReduction]: Number of co-enabled transitions 1904 [2021-03-25 09:33:53,425 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:33:53,426 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:33:53,426 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 332 [2021-03-25 09:33:53,426 INFO L480 AbstractCegarLoop]: Abstraction has has 485 places, 551 transitions, 15616 flow [2021-03-25 09:33:53,426 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:53,426 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:33:53,426 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:33:53,426 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2021-03-25 09:33:53,426 INFO L428 AbstractCegarLoop]: === Iteration 173 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:33:53,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:33:53,426 INFO L82 PathProgramCache]: Analyzing trace with hash -27221291, now seen corresponding path program 4 times [2021-03-25 09:33:53,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:33:53,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142358539] [2021-03-25 09:33:53,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:33:53,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:33:53,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:53,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:33:53,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:53,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:33:53,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:53,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:53,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:53,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:33:53,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:53,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:53,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:53,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:33:53,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:53,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:53,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:53,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:53,511 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:33:53,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:33:53,525 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:33:53,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:53,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:33:53,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142358539] [2021-03-25 09:33:53,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:33:53,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:33:53,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010325584] [2021-03-25 09:33:53,528 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:33:53,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:33:53,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:33:53,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:33:53,528 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 137 [2021-03-25 09:33:53,529 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 485 places, 551 transitions, 15616 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:53,529 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:33:53,529 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 137 [2021-03-25 09:33:53,529 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:33:54,224 INFO L129 PetriNetUnfolder]: 543/1300 cut-off events. [2021-03-25 09:33:54,224 INFO L130 PetriNetUnfolder]: For 60890/60894 co-relation queries the response was YES. [2021-03-25 09:33:54,242 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14961 conditions, 1300 events. 543/1300 cut-off events. For 60890/60894 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 8931 event pairs, 12 based on Foata normal form. 5/1133 useless extension candidates. Maximal degree in co-relation 14739. Up to 728 conditions per place. [2021-03-25 09:33:54,248 INFO L132 encePairwiseOnDemand]: 121/137 looper letters, 463 selfloop transitions, 84 changer transitions 0/565 dead transitions. [2021-03-25 09:33:54,249 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 497 places, 565 transitions, 17173 flow [2021-03-25 09:33:54,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:33:54,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:33:54,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 701 transitions. [2021-03-25 09:33:54,250 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3935991016282987 [2021-03-25 09:33:54,250 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 701 transitions. [2021-03-25 09:33:54,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 701 transitions. [2021-03-25 09:33:54,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:33:54,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 701 transitions. [2021-03-25 09:33:54,250 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 53.92307692307692) internal successors, (701), 13 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:54,251 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:54,251 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:54,251 INFO L185 Difference]: Start difference. First operand has 485 places, 551 transitions, 15616 flow. Second operand 13 states and 701 transitions. [2021-03-25 09:33:54,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 497 places, 565 transitions, 17173 flow [2021-03-25 09:33:54,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 488 places, 565 transitions, 16948 flow, removed 66 selfloop flow, removed 9 redundant places. [2021-03-25 09:33:54,780 INFO L241 Difference]: Finished difference. Result has 491 places, 558 transitions, 16001 flow [2021-03-25 09:33:54,781 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=15395, PETRI_DIFFERENCE_MINUEND_PLACES=476, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=551, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=469, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=16001, PETRI_PLACES=491, PETRI_TRANSITIONS=558} [2021-03-25 09:33:54,781 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 430 predicate places. [2021-03-25 09:33:54,781 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:33:54,781 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 491 places, 558 transitions, 16001 flow [2021-03-25 09:33:54,781 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 491 places, 558 transitions, 16001 flow [2021-03-25 09:33:54,786 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 491 places, 558 transitions, 16001 flow [2021-03-25 09:33:55,026 INFO L129 PetriNetUnfolder]: 501/1242 cut-off events. [2021-03-25 09:33:55,027 INFO L130 PetriNetUnfolder]: For 61026/61029 co-relation queries the response was YES. [2021-03-25 09:33:55,044 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13765 conditions, 1242 events. 501/1242 cut-off events. For 61026/61029 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 8788 event pairs, 5 based on Foata normal form. 1/1072 useless extension candidates. Maximal degree in co-relation 13551. Up to 264 conditions per place. [2021-03-25 09:33:55,062 INFO L142 LiptonReduction]: Number of co-enabled transitions 1938 [2021-03-25 09:33:55,098 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:33:55,099 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:33:55,099 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 318 [2021-03-25 09:33:55,099 INFO L480 AbstractCegarLoop]: Abstraction has has 491 places, 558 transitions, 16001 flow [2021-03-25 09:33:55,099 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:55,099 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:33:55,099 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:33:55,099 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2021-03-25 09:33:55,099 INFO L428 AbstractCegarLoop]: === Iteration 174 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:33:55,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:33:55,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1426291875, now seen corresponding path program 5 times [2021-03-25 09:33:55,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:33:55,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203855962] [2021-03-25 09:33:55,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:33:55,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:33:55,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:55,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:33:55,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:55,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:33:55,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:55,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:55,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:55,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:33:55,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:55,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:55,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:55,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:33:55,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:55,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:55,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:55,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:55,182 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:33:55,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:33:55,190 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:33:55,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:55,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:33:55,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203855962] [2021-03-25 09:33:55,193 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:33:55,193 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:33:55,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339517837] [2021-03-25 09:33:55,193 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:33:55,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:33:55,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:33:55,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:33:55,194 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 137 [2021-03-25 09:33:55,194 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 491 places, 558 transitions, 16001 flow. Second operand has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:55,194 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:33:55,194 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 137 [2021-03-25 09:33:55,194 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:33:55,846 INFO L129 PetriNetUnfolder]: 557/1344 cut-off events. [2021-03-25 09:33:55,847 INFO L130 PetriNetUnfolder]: For 65600/65615 co-relation queries the response was YES. [2021-03-25 09:33:55,867 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15350 conditions, 1344 events. 557/1344 cut-off events. For 65600/65615 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 9441 event pairs, 5 based on Foata normal form. 12/1172 useless extension candidates. Maximal degree in co-relation 15126. Up to 770 conditions per place. [2021-03-25 09:33:55,874 INFO L132 encePairwiseOnDemand]: 123/137 looper letters, 513 selfloop transitions, 40 changer transitions 0/571 dead transitions. [2021-03-25 09:33:55,874 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 501 places, 571 transitions, 17721 flow [2021-03-25 09:33:55,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:33:55,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:33:55,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 588 transitions. [2021-03-25 09:33:55,875 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.39017916390179164 [2021-03-25 09:33:55,875 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 588 transitions. [2021-03-25 09:33:55,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 588 transitions. [2021-03-25 09:33:55,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:33:55,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 588 transitions. [2021-03-25 09:33:55,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 53.45454545454545) internal successors, (588), 11 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:55,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 137.0) internal successors, (1644), 12 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:55,876 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 137.0) internal successors, (1644), 12 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:55,876 INFO L185 Difference]: Start difference. First operand has 491 places, 558 transitions, 16001 flow. Second operand 11 states and 588 transitions. [2021-03-25 09:33:55,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 501 places, 571 transitions, 17721 flow [2021-03-25 09:33:56,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 494 places, 571 transitions, 17404 flow, removed 122 selfloop flow, removed 7 redundant places. [2021-03-25 09:33:56,436 INFO L241 Difference]: Finished difference. Result has 496 places, 566 transitions, 16294 flow [2021-03-25 09:33:56,436 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=15684, PETRI_DIFFERENCE_MINUEND_PLACES=484, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=558, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=521, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=16294, PETRI_PLACES=496, PETRI_TRANSITIONS=566} [2021-03-25 09:33:56,436 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 435 predicate places. [2021-03-25 09:33:56,436 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:33:56,436 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 496 places, 566 transitions, 16294 flow [2021-03-25 09:33:56,436 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 496 places, 566 transitions, 16294 flow [2021-03-25 09:33:56,441 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 496 places, 566 transitions, 16294 flow [2021-03-25 09:33:56,667 INFO L129 PetriNetUnfolder]: 507/1263 cut-off events. [2021-03-25 09:33:56,667 INFO L130 PetriNetUnfolder]: For 68219/68263 co-relation queries the response was YES. [2021-03-25 09:33:56,685 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14120 conditions, 1263 events. 507/1263 cut-off events. For 68219/68263 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 9060 event pairs, 5 based on Foata normal form. 4/1089 useless extension candidates. Maximal degree in co-relation 13903. Up to 269 conditions per place. [2021-03-25 09:33:56,701 INFO L142 LiptonReduction]: Number of co-enabled transitions 1986 [2021-03-25 09:33:56,738 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:33:56,738 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:33:56,738 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 302 [2021-03-25 09:33:56,738 INFO L480 AbstractCegarLoop]: Abstraction has has 496 places, 566 transitions, 16294 flow [2021-03-25 09:33:56,738 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:56,738 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:33:56,738 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:33:56,738 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2021-03-25 09:33:56,738 INFO L428 AbstractCegarLoop]: === Iteration 175 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:33:56,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:33:56,739 INFO L82 PathProgramCache]: Analyzing trace with hash -262170167, now seen corresponding path program 6 times [2021-03-25 09:33:56,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:33:56,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378258272] [2021-03-25 09:33:56,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:33:56,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:33:56,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:56,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:33:56,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:56,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:33:56,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:56,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:56,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:56,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:33:56,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:56,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:56,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:56,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:33:56,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:56,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:56,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:56,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:56,817 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:33:56,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:33:56,853 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:33:56,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:56,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:33:56,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378258272] [2021-03-25 09:33:56,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:33:56,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:33:56,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380510893] [2021-03-25 09:33:56,855 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:33:56,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:33:56,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:33:56,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:33:56,856 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 137 [2021-03-25 09:33:56,856 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 496 places, 566 transitions, 16294 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:56,856 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:33:56,856 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 137 [2021-03-25 09:33:56,856 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:33:57,512 INFO L129 PetriNetUnfolder]: 556/1353 cut-off events. [2021-03-25 09:33:57,512 INFO L130 PetriNetUnfolder]: For 65391/65397 co-relation queries the response was YES. [2021-03-25 09:33:57,531 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15489 conditions, 1353 events. 556/1353 cut-off events. For 65391/65397 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 9534 event pairs, 6 based on Foata normal form. 7/1176 useless extension candidates. Maximal degree in co-relation 15262. Up to 708 conditions per place. [2021-03-25 09:33:57,538 INFO L132 encePairwiseOnDemand]: 120/137 looper letters, 440 selfloop transitions, 122 changer transitions 0/580 dead transitions. [2021-03-25 09:33:57,538 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 507 places, 580 transitions, 17788 flow [2021-03-25 09:33:57,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:33:57,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:33:57,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 653 transitions. [2021-03-25 09:33:57,539 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.39720194647201945 [2021-03-25 09:33:57,539 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 653 transitions. [2021-03-25 09:33:57,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 653 transitions. [2021-03-25 09:33:57,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:33:57,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 653 transitions. [2021-03-25 09:33:57,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 54.416666666666664) internal successors, (653), 12 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:57,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:57,540 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:57,540 INFO L185 Difference]: Start difference. First operand has 496 places, 566 transitions, 16294 flow. Second operand 12 states and 653 transitions. [2021-03-25 09:33:57,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 507 places, 580 transitions, 17788 flow [2021-03-25 09:33:58,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 501 places, 580 transitions, 17160 flow, removed 299 selfloop flow, removed 6 redundant places. [2021-03-25 09:33:58,159 INFO L241 Difference]: Finished difference. Result has 504 places, 569 transitions, 16209 flow [2021-03-25 09:33:58,160 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=15712, PETRI_DIFFERENCE_MINUEND_PLACES=490, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=566, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=119, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=444, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=16209, PETRI_PLACES=504, PETRI_TRANSITIONS=569} [2021-03-25 09:33:58,160 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 443 predicate places. [2021-03-25 09:33:58,160 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:33:58,160 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 504 places, 569 transitions, 16209 flow [2021-03-25 09:33:58,160 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 504 places, 569 transitions, 16209 flow [2021-03-25 09:33:58,165 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 504 places, 569 transitions, 16209 flow [2021-03-25 09:33:58,419 INFO L129 PetriNetUnfolder]: 514/1296 cut-off events. [2021-03-25 09:33:58,419 INFO L130 PetriNetUnfolder]: For 66864/66867 co-relation queries the response was YES. [2021-03-25 09:33:58,437 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14177 conditions, 1296 events. 514/1296 cut-off events. For 66864/66867 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 9385 event pairs, 3 based on Foata normal form. 1/1114 useless extension candidates. Maximal degree in co-relation 13957. Up to 269 conditions per place. [2021-03-25 09:33:58,455 INFO L142 LiptonReduction]: Number of co-enabled transitions 2016 [2021-03-25 09:33:58,492 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:33:58,493 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:33:58,493 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 333 [2021-03-25 09:33:58,493 INFO L480 AbstractCegarLoop]: Abstraction has has 504 places, 569 transitions, 16209 flow [2021-03-25 09:33:58,493 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:58,493 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:33:58,493 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:33:58,493 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2021-03-25 09:33:58,493 INFO L428 AbstractCegarLoop]: === Iteration 176 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:33:58,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:33:58,493 INFO L82 PathProgramCache]: Analyzing trace with hash 641074965, now seen corresponding path program 7 times [2021-03-25 09:33:58,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:33:58,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093470124] [2021-03-25 09:33:58,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:33:58,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:33:58,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:58,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:33:58,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:58,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:33:58,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:58,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:58,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:58,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:33:58,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:58,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:58,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:58,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:58,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:58,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:58,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:33:58,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:33:58,577 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:33:58,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:33:58,591 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:33:58,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:33:58,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:33:58,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093470124] [2021-03-25 09:33:58,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:33:58,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:33:58,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319202630] [2021-03-25 09:33:58,593 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:33:58,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:33:58,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:33:58,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:33:58,594 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 137 [2021-03-25 09:33:58,594 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 504 places, 569 transitions, 16209 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:58,594 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:33:58,594 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 137 [2021-03-25 09:33:58,594 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:33:59,304 INFO L129 PetriNetUnfolder]: 568/1391 cut-off events. [2021-03-25 09:33:59,305 INFO L130 PetriNetUnfolder]: For 68303/68307 co-relation queries the response was YES. [2021-03-25 09:33:59,325 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15629 conditions, 1391 events. 568/1391 cut-off events. For 68303/68307 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 9868 event pairs, 17 based on Foata normal form. 5/1199 useless extension candidates. Maximal degree in co-relation 15399. Up to 744 conditions per place. [2021-03-25 09:33:59,331 INFO L132 encePairwiseOnDemand]: 121/137 looper letters, 490 selfloop transitions, 72 changer transitions 0/580 dead transitions. [2021-03-25 09:33:59,331 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 515 places, 580 transitions, 17624 flow [2021-03-25 09:33:59,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:33:59,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:33:59,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 647 transitions. [2021-03-25 09:33:59,333 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3935523114355231 [2021-03-25 09:33:59,333 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 647 transitions. [2021-03-25 09:33:59,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 647 transitions. [2021-03-25 09:33:59,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:33:59,333 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 647 transitions. [2021-03-25 09:33:59,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 53.916666666666664) internal successors, (647), 12 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:59,334 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:59,334 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:33:59,334 INFO L185 Difference]: Start difference. First operand has 504 places, 569 transitions, 16209 flow. Second operand 12 states and 647 transitions. [2021-03-25 09:33:59,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 515 places, 580 transitions, 17624 flow [2021-03-25 09:33:59,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 506 places, 580 transitions, 17411 flow, removed 28 selfloop flow, removed 9 redundant places. [2021-03-25 09:33:59,997 INFO L241 Difference]: Finished difference. Result has 509 places, 571 transitions, 16336 flow [2021-03-25 09:33:59,998 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=15996, PETRI_DIFFERENCE_MINUEND_PLACES=495, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=569, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=497, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=16336, PETRI_PLACES=509, PETRI_TRANSITIONS=571} [2021-03-25 09:33:59,998 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 448 predicate places. [2021-03-25 09:33:59,998 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:33:59,998 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 509 places, 571 transitions, 16336 flow [2021-03-25 09:33:59,998 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 509 places, 571 transitions, 16336 flow [2021-03-25 09:34:00,003 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 509 places, 571 transitions, 16336 flow [2021-03-25 09:34:00,271 INFO L129 PetriNetUnfolder]: 518/1316 cut-off events. [2021-03-25 09:34:00,271 INFO L130 PetriNetUnfolder]: For 68719/68723 co-relation queries the response was YES. [2021-03-25 09:34:00,291 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14252 conditions, 1316 events. 518/1316 cut-off events. For 68719/68723 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 9620 event pairs, 3 based on Foata normal form. 2/1128 useless extension candidates. Maximal degree in co-relation 14030. Up to 272 conditions per place. [2021-03-25 09:34:00,311 INFO L142 LiptonReduction]: Number of co-enabled transitions 2042 [2021-03-25 09:34:00,349 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:34:00,349 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:34:00,350 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 352 [2021-03-25 09:34:00,350 INFO L480 AbstractCegarLoop]: Abstraction has has 509 places, 571 transitions, 16336 flow [2021-03-25 09:34:00,350 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:00,350 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:34:00,350 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:34:00,350 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2021-03-25 09:34:00,350 INFO L428 AbstractCegarLoop]: === Iteration 177 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:34:00,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:34:00,350 INFO L82 PathProgramCache]: Analyzing trace with hash -156573454, now seen corresponding path program 1 times [2021-03-25 09:34:00,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:34:00,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626420047] [2021-03-25 09:34:00,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:34:00,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:34:00,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:00,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:34:00,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:00,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:34:00,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:00,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:00,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:00,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:00,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:00,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:00,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:00,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:00,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:00,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:00,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:00,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:00,406 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:34:00,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:34:00,419 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:34:00,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:00,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:34:00,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626420047] [2021-03-25 09:34:00,422 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:34:00,422 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:34:00,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296722513] [2021-03-25 09:34:00,422 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:34:00,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:34:00,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:34:00,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:34:00,423 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 137 [2021-03-25 09:34:00,423 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 509 places, 571 transitions, 16336 flow. Second operand has 9 states, 9 states have (on average 49.333333333333336) internal successors, (444), 9 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:00,423 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:34:00,423 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 137 [2021-03-25 09:34:00,423 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:34:01,061 INFO L129 PetriNetUnfolder]: 565/1389 cut-off events. [2021-03-25 09:34:01,062 INFO L130 PetriNetUnfolder]: For 67579/67585 co-relation queries the response was YES. [2021-03-25 09:34:01,081 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15689 conditions, 1389 events. 565/1389 cut-off events. For 67579/67585 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 9932 event pairs, 5 based on Foata normal form. 7/1201 useless extension candidates. Maximal degree in co-relation 15457. Up to 726 conditions per place. [2021-03-25 09:34:01,088 INFO L132 encePairwiseOnDemand]: 119/137 looper letters, 443 selfloop transitions, 111 changer transitions 6/578 dead transitions. [2021-03-25 09:34:01,088 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 517 places, 578 transitions, 17582 flow [2021-03-25 09:34:01,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 09:34:01,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 09:34:01,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 501 transitions. [2021-03-25 09:34:01,089 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.40632603406326034 [2021-03-25 09:34:01,089 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 501 transitions. [2021-03-25 09:34:01,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 501 transitions. [2021-03-25 09:34:01,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:34:01,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 501 transitions. [2021-03-25 09:34:01,090 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 55.666666666666664) internal successors, (501), 9 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:01,090 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 137.0) internal successors, (1370), 10 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:01,090 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 137.0) internal successors, (1370), 10 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:01,090 INFO L185 Difference]: Start difference. First operand has 509 places, 571 transitions, 16336 flow. Second operand 9 states and 501 transitions. [2021-03-25 09:34:01,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 517 places, 578 transitions, 17582 flow [2021-03-25 09:34:01,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 509 places, 578 transitions, 17430 flow, removed 28 selfloop flow, removed 8 redundant places. [2021-03-25 09:34:01,758 INFO L241 Difference]: Finished difference. Result has 511 places, 566 transitions, 16455 flow [2021-03-25 09:34:01,759 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=16184, PETRI_DIFFERENCE_MINUEND_PLACES=501, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=571, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=460, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=16455, PETRI_PLACES=511, PETRI_TRANSITIONS=566} [2021-03-25 09:34:01,759 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 450 predicate places. [2021-03-25 09:34:01,759 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:34:01,759 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 511 places, 566 transitions, 16455 flow [2021-03-25 09:34:01,759 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 511 places, 566 transitions, 16455 flow [2021-03-25 09:34:01,765 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 509 places, 566 transitions, 16455 flow [2021-03-25 09:34:02,028 INFO L129 PetriNetUnfolder]: 512/1293 cut-off events. [2021-03-25 09:34:02,028 INFO L130 PetriNetUnfolder]: For 70516/70561 co-relation queries the response was YES. [2021-03-25 09:34:02,048 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14376 conditions, 1293 events. 512/1293 cut-off events. For 70516/70561 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 9402 event pairs, 2 based on Foata normal form. 5/1110 useless extension candidates. Maximal degree in co-relation 14152. Up to 273 conditions per place. [2021-03-25 09:34:02,067 INFO L142 LiptonReduction]: Number of co-enabled transitions 1992 [2021-03-25 09:34:02,104 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:34:02,104 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:34:02,104 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 345 [2021-03-25 09:34:02,104 INFO L480 AbstractCegarLoop]: Abstraction has has 509 places, 566 transitions, 16455 flow [2021-03-25 09:34:02,104 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 49.333333333333336) internal successors, (444), 9 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:02,104 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:34:02,105 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:34:02,105 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2021-03-25 09:34:02,105 INFO L428 AbstractCegarLoop]: === Iteration 178 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:34:02,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:34:02,105 INFO L82 PathProgramCache]: Analyzing trace with hash 43738307, now seen corresponding path program 8 times [2021-03-25 09:34:02,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:34:02,105 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074848650] [2021-03-25 09:34:02,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:34:02,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:34:02,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:02,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:34:02,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:02,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:34:02,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:02,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:02,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:02,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:34:02,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:02,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:02,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:02,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:02,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:02,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:02,175 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:34:02,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:34:02,188 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:34:02,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:34:02,203 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:34:02,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:02,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:34:02,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074848650] [2021-03-25 09:34:02,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:34:02,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:34:02,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737401999] [2021-03-25 09:34:02,205 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:34:02,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:34:02,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:34:02,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:34:02,206 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 137 [2021-03-25 09:34:02,206 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 509 places, 566 transitions, 16455 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:02,206 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:34:02,206 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 137 [2021-03-25 09:34:02,206 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:34:02,933 INFO L129 PetriNetUnfolder]: 567/1404 cut-off events. [2021-03-25 09:34:02,933 INFO L130 PetriNetUnfolder]: For 70229/70233 co-relation queries the response was YES. [2021-03-25 09:34:02,953 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15844 conditions, 1404 events. 567/1404 cut-off events. For 70229/70233 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 10032 event pairs, 18 based on Foata normal form. 5/1208 useless extension candidates. Maximal degree in co-relation 15610. Up to 733 conditions per place. [2021-03-25 09:34:02,960 INFO L132 encePairwiseOnDemand]: 121/137 looper letters, 467 selfloop transitions, 85 changer transitions 6/576 dead transitions. [2021-03-25 09:34:02,960 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 520 places, 576 transitions, 17786 flow [2021-03-25 09:34:02,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:34:02,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:34:02,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 646 transitions. [2021-03-25 09:34:02,961 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3929440389294404 [2021-03-25 09:34:02,961 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 646 transitions. [2021-03-25 09:34:02,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 646 transitions. [2021-03-25 09:34:02,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:34:02,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 646 transitions. [2021-03-25 09:34:02,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 53.833333333333336) internal successors, (646), 12 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:02,962 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:02,963 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:02,963 INFO L185 Difference]: Start difference. First operand has 509 places, 566 transitions, 16455 flow. Second operand 12 states and 646 transitions. [2021-03-25 09:34:02,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 520 places, 576 transitions, 17786 flow [2021-03-25 09:34:03,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 507 places, 576 transitions, 17369 flow, removed 22 selfloop flow, removed 13 redundant places. [2021-03-25 09:34:03,655 INFO L241 Difference]: Finished difference. Result has 509 places, 562 transitions, 16093 flow [2021-03-25 09:34:03,656 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=16042, PETRI_DIFFERENCE_MINUEND_PLACES=496, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=566, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=481, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=16093, PETRI_PLACES=509, PETRI_TRANSITIONS=562} [2021-03-25 09:34:03,656 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 448 predicate places. [2021-03-25 09:34:03,656 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:34:03,656 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 509 places, 562 transitions, 16093 flow [2021-03-25 09:34:03,656 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 509 places, 562 transitions, 16093 flow [2021-03-25 09:34:03,661 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 509 places, 562 transitions, 16093 flow [2021-03-25 09:34:03,934 INFO L129 PetriNetUnfolder]: 525/1337 cut-off events. [2021-03-25 09:34:03,934 INFO L130 PetriNetUnfolder]: For 69626/69647 co-relation queries the response was YES. [2021-03-25 09:34:03,954 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14372 conditions, 1337 events. 525/1337 cut-off events. For 69626/69647 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 9820 event pairs, 7 based on Foata normal form. 1/1139 useless extension candidates. Maximal degree in co-relation 14149. Up to 272 conditions per place. [2021-03-25 09:34:03,974 INFO L142 LiptonReduction]: Number of co-enabled transitions 1992 [2021-03-25 09:34:04,011 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:34:04,011 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:34:04,011 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 355 [2021-03-25 09:34:04,012 INFO L480 AbstractCegarLoop]: Abstraction has has 509 places, 562 transitions, 16093 flow [2021-03-25 09:34:04,012 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:04,012 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:34:04,012 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:34:04,012 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2021-03-25 09:34:04,012 INFO L428 AbstractCegarLoop]: === Iteration 179 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:34:04,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:34:04,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1462906679, now seen corresponding path program 9 times [2021-03-25 09:34:04,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:34:04,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291414825] [2021-03-25 09:34:04,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:34:04,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:34:04,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:04,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:34:04,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:04,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:34:04,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:04,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:04,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:04,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:34:04,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:04,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:04,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:04,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:04,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:04,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:04,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:04,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:04,102 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:34:04,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:34:04,117 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:34:04,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:04,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:34:04,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291414825] [2021-03-25 09:34:04,119 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:34:04,119 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:34:04,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618476186] [2021-03-25 09:34:04,119 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:34:04,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:34:04,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:34:04,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:34:04,120 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 137 [2021-03-25 09:34:04,120 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 509 places, 562 transitions, 16093 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:04,120 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:34:04,120 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 137 [2021-03-25 09:34:04,120 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:34:04,837 INFO L129 PetriNetUnfolder]: 560/1383 cut-off events. [2021-03-25 09:34:04,837 INFO L130 PetriNetUnfolder]: For 68449/68462 co-relation queries the response was YES. [2021-03-25 09:34:04,856 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15496 conditions, 1383 events. 560/1383 cut-off events. For 68449/68462 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 9866 event pairs, 18 based on Foata normal form. 14/1202 useless extension candidates. Maximal degree in co-relation 15263. Up to 754 conditions per place. [2021-03-25 09:34:04,862 INFO L132 encePairwiseOnDemand]: 120/137 looper letters, 491 selfloop transitions, 60 changer transitions 0/569 dead transitions. [2021-03-25 09:34:04,862 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 519 places, 569 transitions, 17297 flow [2021-03-25 09:34:04,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:34:04,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:34:04,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 594 transitions. [2021-03-25 09:34:04,863 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.39416058394160586 [2021-03-25 09:34:04,863 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 594 transitions. [2021-03-25 09:34:04,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 594 transitions. [2021-03-25 09:34:04,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:34:04,863 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 594 transitions. [2021-03-25 09:34:04,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 54.0) internal successors, (594), 11 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:04,864 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 137.0) internal successors, (1644), 12 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:04,864 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 137.0) internal successors, (1644), 12 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:04,864 INFO L185 Difference]: Start difference. First operand has 509 places, 562 transitions, 16093 flow. Second operand 11 states and 594 transitions. [2021-03-25 09:34:04,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 519 places, 569 transitions, 17297 flow [2021-03-25 09:34:05,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 507 places, 569 transitions, 17150 flow, removed 1 selfloop flow, removed 12 redundant places. [2021-03-25 09:34:05,542 INFO L241 Difference]: Finished difference. Result has 509 places, 563 transitions, 16187 flow [2021-03-25 09:34:05,542 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=15946, PETRI_DIFFERENCE_MINUEND_PLACES=497, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=562, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=502, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=16187, PETRI_PLACES=509, PETRI_TRANSITIONS=563} [2021-03-25 09:34:05,542 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 448 predicate places. [2021-03-25 09:34:05,542 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:34:05,543 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 509 places, 563 transitions, 16187 flow [2021-03-25 09:34:05,543 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 509 places, 563 transitions, 16187 flow [2021-03-25 09:34:05,548 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 509 places, 563 transitions, 16187 flow [2021-03-25 09:34:05,822 INFO L129 PetriNetUnfolder]: 523/1337 cut-off events. [2021-03-25 09:34:05,823 INFO L130 PetriNetUnfolder]: For 70391/70412 co-relation queries the response was YES. [2021-03-25 09:34:05,842 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14417 conditions, 1337 events. 523/1337 cut-off events. For 70391/70412 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 9847 event pairs, 5 based on Foata normal form. 1/1140 useless extension candidates. Maximal degree in co-relation 14194. Up to 273 conditions per place. [2021-03-25 09:34:05,861 INFO L142 LiptonReduction]: Number of co-enabled transitions 2008 [2021-03-25 09:34:05,898 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:34:05,898 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:34:05,898 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 356 [2021-03-25 09:34:05,899 INFO L480 AbstractCegarLoop]: Abstraction has has 509 places, 563 transitions, 16187 flow [2021-03-25 09:34:05,899 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:05,899 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:34:05,899 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:34:05,899 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2021-03-25 09:34:05,899 INFO L428 AbstractCegarLoop]: === Iteration 180 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:34:05,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:34:05,899 INFO L82 PathProgramCache]: Analyzing trace with hash 153526069, now seen corresponding path program 10 times [2021-03-25 09:34:05,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:34:05,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921615037] [2021-03-25 09:34:05,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:34:05,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:34:05,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:05,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:34:05,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:05,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:34:05,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:05,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:05,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:05,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:34:05,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:05,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:05,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:05,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:05,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:05,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:05,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:05,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:05,984 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:34:05,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:34:05,998 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:34:05,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:06,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:34:06,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921615037] [2021-03-25 09:34:06,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:34:06,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:34:06,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224976111] [2021-03-25 09:34:06,001 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:34:06,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:34:06,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:34:06,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:34:06,002 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 137 [2021-03-25 09:34:06,002 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 509 places, 563 transitions, 16187 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:06,002 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:34:06,002 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 137 [2021-03-25 09:34:06,002 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:34:06,727 INFO L129 PetriNetUnfolder]: 563/1394 cut-off events. [2021-03-25 09:34:06,727 INFO L130 PetriNetUnfolder]: For 68814/68827 co-relation queries the response was YES. [2021-03-25 09:34:06,748 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15555 conditions, 1394 events. 563/1394 cut-off events. For 68814/68827 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 9957 event pairs, 18 based on Foata normal form. 10/1205 useless extension candidates. Maximal degree in co-relation 15322. Up to 770 conditions per place. [2021-03-25 09:34:06,754 INFO L132 encePairwiseOnDemand]: 123/137 looper letters, 495 selfloop transitions, 49 changer transitions 6/568 dead transitions. [2021-03-25 09:34:06,754 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 519 places, 568 transitions, 17376 flow [2021-03-25 09:34:06,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:34:06,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:34:06,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 589 transitions. [2021-03-25 09:34:06,756 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.39084273390842733 [2021-03-25 09:34:06,756 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 589 transitions. [2021-03-25 09:34:06,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 589 transitions. [2021-03-25 09:34:06,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:34:06,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 589 transitions. [2021-03-25 09:34:06,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 53.54545454545455) internal successors, (589), 11 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:06,757 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 137.0) internal successors, (1644), 12 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:06,757 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 137.0) internal successors, (1644), 12 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:06,757 INFO L185 Difference]: Start difference. First operand has 509 places, 563 transitions, 16187 flow. Second operand 11 states and 589 transitions. [2021-03-25 09:34:06,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 519 places, 568 transitions, 17376 flow [2021-03-25 09:34:07,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 510 places, 568 transitions, 17270 flow, removed 7 selfloop flow, removed 9 redundant places. [2021-03-25 09:34:07,465 INFO L241 Difference]: Finished difference. Result has 512 places, 558 transitions, 16051 flow [2021-03-25 09:34:07,465 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=16081, PETRI_DIFFERENCE_MINUEND_PLACES=500, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=563, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=514, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=16051, PETRI_PLACES=512, PETRI_TRANSITIONS=558} [2021-03-25 09:34:07,465 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 451 predicate places. [2021-03-25 09:34:07,465 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:34:07,466 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 512 places, 558 transitions, 16051 flow [2021-03-25 09:34:07,466 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 512 places, 558 transitions, 16051 flow [2021-03-25 09:34:07,471 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 510 places, 558 transitions, 16051 flow [2021-03-25 09:34:07,742 INFO L129 PetriNetUnfolder]: 518/1320 cut-off events. [2021-03-25 09:34:07,743 INFO L130 PetriNetUnfolder]: For 70445/70466 co-relation queries the response was YES. [2021-03-25 09:34:07,762 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14346 conditions, 1320 events. 518/1320 cut-off events. For 70445/70466 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 9633 event pairs, 4 based on Foata normal form. 1/1127 useless extension candidates. Maximal degree in co-relation 14121. Up to 269 conditions per place. [2021-03-25 09:34:07,783 INFO L142 LiptonReduction]: Number of co-enabled transitions 1954 [2021-03-25 09:34:07,819 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:34:07,819 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:34:07,819 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 354 [2021-03-25 09:34:07,820 INFO L480 AbstractCegarLoop]: Abstraction has has 510 places, 558 transitions, 16051 flow [2021-03-25 09:34:07,820 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:07,820 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:34:07,820 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:34:07,820 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2021-03-25 09:34:07,820 INFO L428 AbstractCegarLoop]: === Iteration 181 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:34:07,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:34:07,820 INFO L82 PathProgramCache]: Analyzing trace with hash -563677167, now seen corresponding path program 11 times [2021-03-25 09:34:07,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:34:07,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346127035] [2021-03-25 09:34:07,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:34:07,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:34:07,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:07,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:34:07,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:07,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:34:07,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:07,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:07,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:07,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:34:07,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:07,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:07,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:07,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:07,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:07,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:07,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:07,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:07,902 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:34:07,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:34:07,916 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:34:07,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:07,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:34:07,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346127035] [2021-03-25 09:34:07,919 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:34:07,919 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:34:07,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76356621] [2021-03-25 09:34:07,919 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:34:07,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:34:07,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:34:07,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:34:07,920 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 137 [2021-03-25 09:34:07,920 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 510 places, 558 transitions, 16051 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:07,920 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:34:07,920 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 137 [2021-03-25 09:34:07,920 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:34:08,663 INFO L129 PetriNetUnfolder]: 558/1371 cut-off events. [2021-03-25 09:34:08,663 INFO L130 PetriNetUnfolder]: For 68012/68025 co-relation queries the response was YES. [2021-03-25 09:34:08,681 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15416 conditions, 1371 events. 558/1371 cut-off events. For 68012/68025 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 9717 event pairs, 18 based on Foata normal form. 14/1191 useless extension candidates. Maximal degree in co-relation 15181. Up to 743 conditions per place. [2021-03-25 09:34:08,688 INFO L132 encePairwiseOnDemand]: 118/137 looper letters, 486 selfloop transitions, 58 changer transitions 5/567 dead transitions. [2021-03-25 09:34:08,688 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 522 places, 567 transitions, 17317 flow [2021-03-25 09:34:08,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:34:08,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:34:08,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 695 transitions. [2021-03-25 09:34:08,689 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3902302077484559 [2021-03-25 09:34:08,689 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 695 transitions. [2021-03-25 09:34:08,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 695 transitions. [2021-03-25 09:34:08,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:34:08,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 695 transitions. [2021-03-25 09:34:08,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 53.46153846153846) internal successors, (695), 13 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:08,690 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:08,690 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:08,691 INFO L185 Difference]: Start difference. First operand has 510 places, 558 transitions, 16051 flow. Second operand 13 states and 695 transitions. [2021-03-25 09:34:08,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 522 places, 567 transitions, 17317 flow [2021-03-25 09:34:09,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 507 places, 567 transitions, 16907 flow, removed 47 selfloop flow, removed 15 redundant places. [2021-03-25 09:34:09,332 INFO L241 Difference]: Finished difference. Result has 509 places, 555 transitions, 15680 flow [2021-03-25 09:34:09,332 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=15645, PETRI_DIFFERENCE_MINUEND_PLACES=495, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=558, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=500, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=15680, PETRI_PLACES=509, PETRI_TRANSITIONS=555} [2021-03-25 09:34:09,332 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 448 predicate places. [2021-03-25 09:34:09,332 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:34:09,332 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 509 places, 555 transitions, 15680 flow [2021-03-25 09:34:09,333 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 509 places, 555 transitions, 15680 flow [2021-03-25 09:34:09,338 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 507 places, 555 transitions, 15680 flow [2021-03-25 09:34:09,590 INFO L129 PetriNetUnfolder]: 514/1300 cut-off events. [2021-03-25 09:34:09,590 INFO L130 PetriNetUnfolder]: For 66272/66293 co-relation queries the response was YES. [2021-03-25 09:34:09,609 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13923 conditions, 1300 events. 514/1300 cut-off events. For 66272/66293 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 9419 event pairs, 4 based on Foata normal form. 1/1111 useless extension candidates. Maximal degree in co-relation 13701. Up to 264 conditions per place. [2021-03-25 09:34:09,628 INFO L142 LiptonReduction]: Number of co-enabled transitions 1928 [2021-03-25 09:34:09,664 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:34:09,664 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:34:09,665 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 333 [2021-03-25 09:34:09,665 INFO L480 AbstractCegarLoop]: Abstraction has has 507 places, 555 transitions, 15680 flow [2021-03-25 09:34:09,665 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:09,665 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:34:09,665 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:34:09,665 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2021-03-25 09:34:09,665 INFO L428 AbstractCegarLoop]: === Iteration 182 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:34:09,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:34:09,665 INFO L82 PathProgramCache]: Analyzing trace with hash 306039343, now seen corresponding path program 12 times [2021-03-25 09:34:09,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:34:09,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172838343] [2021-03-25 09:34:09,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:34:09,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:34:09,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:09,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:34:09,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:09,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:34:09,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:09,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:09,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:09,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:34:09,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:09,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:09,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:09,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:09,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:09,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:09,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:09,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:09,747 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:34:09,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:34:09,761 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:34:09,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:09,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:34:09,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172838343] [2021-03-25 09:34:09,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:34:09,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:34:09,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829905748] [2021-03-25 09:34:09,764 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:34:09,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:34:09,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:34:09,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:34:09,764 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 137 [2021-03-25 09:34:09,765 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 507 places, 555 transitions, 15680 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:09,765 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:34:09,765 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 137 [2021-03-25 09:34:09,765 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:34:10,458 INFO L129 PetriNetUnfolder]: 546/1331 cut-off events. [2021-03-25 09:34:10,459 INFO L130 PetriNetUnfolder]: For 63608/63614 co-relation queries the response was YES. [2021-03-25 09:34:10,478 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15010 conditions, 1331 events. 546/1331 cut-off events. For 63608/63614 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 9283 event pairs, 6 based on Foata normal form. 7/1157 useless extension candidates. Maximal degree in co-relation 14778. Up to 743 conditions per place. [2021-03-25 09:34:10,484 INFO L132 encePairwiseOnDemand]: 121/137 looper letters, 476 selfloop transitions, 61 changer transitions 7/562 dead transitions. [2021-03-25 09:34:10,484 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 562 transitions, 16886 flow [2021-03-25 09:34:10,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:34:10,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:34:10,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 644 transitions. [2021-03-25 09:34:10,485 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.39172749391727496 [2021-03-25 09:34:10,485 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 644 transitions. [2021-03-25 09:34:10,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 644 transitions. [2021-03-25 09:34:10,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:34:10,486 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 644 transitions. [2021-03-25 09:34:10,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 53.666666666666664) internal successors, (644), 12 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:10,487 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:10,487 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:10,487 INFO L185 Difference]: Start difference. First operand has 507 places, 555 transitions, 15680 flow. Second operand 12 states and 644 transitions. [2021-03-25 09:34:10,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 562 transitions, 16886 flow [2021-03-25 09:34:11,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 502 places, 562 transitions, 16685 flow, removed 4 selfloop flow, removed 16 redundant places. [2021-03-25 09:34:11,089 INFO L241 Difference]: Finished difference. Result has 504 places, 550 transitions, 15479 flow [2021-03-25 09:34:11,089 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=15479, PETRI_DIFFERENCE_MINUEND_PLACES=491, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=555, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=494, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=15479, PETRI_PLACES=504, PETRI_TRANSITIONS=550} [2021-03-25 09:34:11,089 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 443 predicate places. [2021-03-25 09:34:11,089 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:34:11,090 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 504 places, 550 transitions, 15479 flow [2021-03-25 09:34:11,090 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 504 places, 550 transitions, 15479 flow [2021-03-25 09:34:11,095 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 503 places, 550 transitions, 15479 flow [2021-03-25 09:34:11,344 INFO L129 PetriNetUnfolder]: 506/1269 cut-off events. [2021-03-25 09:34:11,344 INFO L130 PetriNetUnfolder]: For 65585/65605 co-relation queries the response was YES. [2021-03-25 09:34:11,363 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13734 conditions, 1269 events. 506/1269 cut-off events. For 65585/65605 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 9077 event pairs, 4 based on Foata normal form. 0/1088 useless extension candidates. Maximal degree in co-relation 13514. Up to 260 conditions per place. [2021-03-25 09:34:11,381 INFO L142 LiptonReduction]: Number of co-enabled transitions 1874 [2021-03-25 09:34:11,416 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:34:11,416 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:34:11,416 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 327 [2021-03-25 09:34:11,417 INFO L480 AbstractCegarLoop]: Abstraction has has 503 places, 550 transitions, 15479 flow [2021-03-25 09:34:11,417 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:11,417 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:34:11,417 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:34:11,417 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2021-03-25 09:34:11,417 INFO L428 AbstractCegarLoop]: === Iteration 183 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:34:11,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:34:11,417 INFO L82 PathProgramCache]: Analyzing trace with hash 91312367, now seen corresponding path program 13 times [2021-03-25 09:34:11,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:34:11,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224912641] [2021-03-25 09:34:11,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:34:11,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:34:11,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:11,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:34:11,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:11,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:34:11,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:11,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:11,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:11,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:34:11,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:11,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:11,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:11,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:34:11,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:11,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:11,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:11,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:11,503 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:34:11,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:34:11,519 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:34:11,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:11,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:34:11,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224912641] [2021-03-25 09:34:11,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:34:11,522 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:34:11,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439583525] [2021-03-25 09:34:11,522 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:34:11,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:34:11,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:34:11,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:34:11,522 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 137 [2021-03-25 09:34:11,523 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 503 places, 550 transitions, 15479 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:11,523 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:34:11,523 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 137 [2021-03-25 09:34:11,523 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:34:12,240 INFO L129 PetriNetUnfolder]: 547/1333 cut-off events. [2021-03-25 09:34:12,241 INFO L130 PetriNetUnfolder]: For 63126/63132 co-relation queries the response was YES. [2021-03-25 09:34:12,255 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14974 conditions, 1333 events. 547/1333 cut-off events. For 63126/63132 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 9316 event pairs, 6 based on Foata normal form. 7/1157 useless extension candidates. Maximal degree in co-relation 14744. Up to 747 conditions per place. [2021-03-25 09:34:12,262 INFO L132 encePairwiseOnDemand]: 123/137 looper letters, 491 selfloop transitions, 47 changer transitions 2/558 dead transitions. [2021-03-25 09:34:12,262 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 514 places, 558 transitions, 16842 flow [2021-03-25 09:34:12,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:34:12,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:34:12,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 638 transitions. [2021-03-25 09:34:12,263 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3880778588807786 [2021-03-25 09:34:12,263 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 638 transitions. [2021-03-25 09:34:12,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 638 transitions. [2021-03-25 09:34:12,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:34:12,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 638 transitions. [2021-03-25 09:34:12,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 53.166666666666664) internal successors, (638), 12 states have internal predecessors, (638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:12,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:12,264 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:12,264 INFO L185 Difference]: Start difference. First operand has 503 places, 550 transitions, 15479 flow. Second operand 12 states and 638 transitions. [2021-03-25 09:34:12,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 514 places, 558 transitions, 16842 flow [2021-03-25 09:34:12,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 496 places, 558 transitions, 16541 flow, removed 12 selfloop flow, removed 18 redundant places. [2021-03-25 09:34:12,820 INFO L241 Difference]: Finished difference. Result has 499 places, 550 transitions, 15342 flow [2021-03-25 09:34:12,820 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=15186, PETRI_DIFFERENCE_MINUEND_PLACES=485, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=550, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=503, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=15342, PETRI_PLACES=499, PETRI_TRANSITIONS=550} [2021-03-25 09:34:12,821 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 438 predicate places. [2021-03-25 09:34:12,821 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:34:12,821 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 499 places, 550 transitions, 15342 flow [2021-03-25 09:34:12,821 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 499 places, 550 transitions, 15342 flow [2021-03-25 09:34:12,826 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 499 places, 550 transitions, 15342 flow [2021-03-25 09:34:13,063 INFO L129 PetriNetUnfolder]: 496/1254 cut-off events. [2021-03-25 09:34:13,063 INFO L130 PetriNetUnfolder]: For 63474/63495 co-relation queries the response was YES. [2021-03-25 09:34:13,080 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13648 conditions, 1254 events. 496/1254 cut-off events. For 63474/63495 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 8979 event pairs, 6 based on Foata normal form. 1/1082 useless extension candidates. Maximal degree in co-relation 13430. Up to 262 conditions per place. [2021-03-25 09:34:13,098 INFO L142 LiptonReduction]: Number of co-enabled transitions 1888 [2021-03-25 09:34:13,133 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:34:13,133 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:34:13,133 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 312 [2021-03-25 09:34:13,133 INFO L480 AbstractCegarLoop]: Abstraction has has 499 places, 550 transitions, 15342 flow [2021-03-25 09:34:13,133 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:13,133 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:34:13,133 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:34:13,133 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2021-03-25 09:34:13,133 INFO L428 AbstractCegarLoop]: === Iteration 184 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:34:13,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:34:13,134 INFO L82 PathProgramCache]: Analyzing trace with hash 4904983, now seen corresponding path program 14 times [2021-03-25 09:34:13,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:34:13,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206718422] [2021-03-25 09:34:13,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:34:13,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:34:13,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:13,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:34:13,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:13,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:34:13,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:13,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:13,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:13,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:34:13,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:13,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:13,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:13,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:34:13,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:13,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:13,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:13,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:13,213 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:34:13,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:34:13,227 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:34:13,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:13,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:34:13,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206718422] [2021-03-25 09:34:13,229 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:34:13,229 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:34:13,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148986127] [2021-03-25 09:34:13,229 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:34:13,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:34:13,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:34:13,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:34:13,230 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 137 [2021-03-25 09:34:13,230 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 499 places, 550 transitions, 15342 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:13,230 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:34:13,230 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 137 [2021-03-25 09:34:13,230 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:34:13,993 INFO L129 PetriNetUnfolder]: 549/1342 cut-off events. [2021-03-25 09:34:13,993 INFO L130 PetriNetUnfolder]: For 63476/63480 co-relation queries the response was YES. [2021-03-25 09:34:14,012 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14886 conditions, 1342 events. 549/1342 cut-off events. For 63476/63480 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 9362 event pairs, 18 based on Foata normal form. 5/1163 useless extension candidates. Maximal degree in co-relation 14658. Up to 731 conditions per place. [2021-03-25 09:34:14,019 INFO L132 encePairwiseOnDemand]: 118/137 looper letters, 461 selfloop transitions, 84 changer transitions 0/563 dead transitions. [2021-03-25 09:34:14,019 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 512 places, 563 transitions, 16720 flow [2021-03-25 09:34:14,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:34:14,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:34:14,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 749 transitions. [2021-03-25 09:34:14,020 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3905109489051095 [2021-03-25 09:34:14,020 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 749 transitions. [2021-03-25 09:34:14,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 749 transitions. [2021-03-25 09:34:14,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:34:14,020 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 749 transitions. [2021-03-25 09:34:14,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 53.5) internal successors, (749), 14 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:14,022 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 137.0) internal successors, (2055), 15 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:14,022 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 137.0) internal successors, (2055), 15 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:14,022 INFO L185 Difference]: Start difference. First operand has 499 places, 550 transitions, 15342 flow. Second operand 14 states and 749 transitions. [2021-03-25 09:34:14,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 512 places, 563 transitions, 16720 flow [2021-03-25 09:34:14,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 501 places, 563 transitions, 16565 flow, removed 32 selfloop flow, removed 11 redundant places. [2021-03-25 09:34:14,636 INFO L241 Difference]: Finished difference. Result has 503 places, 556 transitions, 15651 flow [2021-03-25 09:34:14,636 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=15187, PETRI_DIFFERENCE_MINUEND_PLACES=488, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=550, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=15651, PETRI_PLACES=503, PETRI_TRANSITIONS=556} [2021-03-25 09:34:14,636 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 442 predicate places. [2021-03-25 09:34:14,637 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:34:14,637 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 503 places, 556 transitions, 15651 flow [2021-03-25 09:34:14,637 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 503 places, 556 transitions, 15651 flow [2021-03-25 09:34:14,642 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 503 places, 556 transitions, 15651 flow [2021-03-25 09:34:14,902 INFO L129 PetriNetUnfolder]: 514/1300 cut-off events. [2021-03-25 09:34:14,902 INFO L130 PetriNetUnfolder]: For 63843/63864 co-relation queries the response was YES. [2021-03-25 09:34:14,922 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13852 conditions, 1300 events. 514/1300 cut-off events. For 63843/63864 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 9462 event pairs, 3 based on Foata normal form. 1/1112 useless extension candidates. Maximal degree in co-relation 13633. Up to 266 conditions per place. [2021-03-25 09:34:14,940 INFO L142 LiptonReduction]: Number of co-enabled transitions 1912 [2021-03-25 09:34:14,978 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:34:14,978 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:34:14,978 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 341 [2021-03-25 09:34:14,978 INFO L480 AbstractCegarLoop]: Abstraction has has 503 places, 556 transitions, 15651 flow [2021-03-25 09:34:14,978 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:14,978 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:34:14,978 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:34:14,978 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2021-03-25 09:34:14,978 INFO L428 AbstractCegarLoop]: === Iteration 185 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:34:14,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:34:14,979 INFO L82 PathProgramCache]: Analyzing trace with hash 1441357519, now seen corresponding path program 15 times [2021-03-25 09:34:14,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:34:14,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539517662] [2021-03-25 09:34:14,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:34:14,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:34:14,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:14,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:34:14,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:14,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:34:14,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:14,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:15,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:15,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:34:15,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:15,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:15,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:15,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:34:15,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:15,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:15,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:15,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:15,060 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:34:15,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:34:15,074 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:34:15,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:15,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:34:15,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539517662] [2021-03-25 09:34:15,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:34:15,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:34:15,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399734245] [2021-03-25 09:34:15,077 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:34:15,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:34:15,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:34:15,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:34:15,078 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 137 [2021-03-25 09:34:15,078 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 503 places, 556 transitions, 15651 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:15,078 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:34:15,078 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 137 [2021-03-25 09:34:15,078 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:34:15,871 INFO L129 PetriNetUnfolder]: 562/1377 cut-off events. [2021-03-25 09:34:15,871 INFO L130 PetriNetUnfolder]: For 67092/67107 co-relation queries the response was YES. [2021-03-25 09:34:15,892 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15248 conditions, 1377 events. 562/1377 cut-off events. For 67092/67107 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 9809 event pairs, 5 based on Foata normal form. 17/1200 useless extension candidates. Maximal degree in co-relation 15019. Up to 727 conditions per place. [2021-03-25 09:34:15,899 INFO L132 encePairwiseOnDemand]: 121/137 looper letters, 453 selfloop transitions, 100 changer transitions 0/571 dead transitions. [2021-03-25 09:34:15,899 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 516 places, 571 transitions, 17381 flow [2021-03-25 09:34:15,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:34:15,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:34:15,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 751 transitions. [2021-03-25 09:34:15,900 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3915537017726799 [2021-03-25 09:34:15,900 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 751 transitions. [2021-03-25 09:34:15,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 751 transitions. [2021-03-25 09:34:15,900 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:34:15,900 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 751 transitions. [2021-03-25 09:34:15,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 53.642857142857146) internal successors, (751), 14 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:15,901 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 137.0) internal successors, (2055), 15 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:15,901 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 137.0) internal successors, (2055), 15 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:15,902 INFO L185 Difference]: Start difference. First operand has 503 places, 556 transitions, 15651 flow. Second operand 14 states and 751 transitions. [2021-03-25 09:34:15,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 516 places, 571 transitions, 17381 flow [2021-03-25 09:34:16,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 506 places, 571 transitions, 17178 flow, removed 55 selfloop flow, removed 10 redundant places. [2021-03-25 09:34:16,568 INFO L241 Difference]: Finished difference. Result has 507 places, 565 transitions, 16259 flow [2021-03-25 09:34:16,568 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=15448, PETRI_DIFFERENCE_MINUEND_PLACES=493, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=556, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=462, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=16259, PETRI_PLACES=507, PETRI_TRANSITIONS=565} [2021-03-25 09:34:16,568 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 446 predicate places. [2021-03-25 09:34:16,568 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:34:16,568 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 507 places, 565 transitions, 16259 flow [2021-03-25 09:34:16,568 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 507 places, 565 transitions, 16259 flow [2021-03-25 09:34:16,574 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 507 places, 565 transitions, 16259 flow [2021-03-25 09:34:16,845 INFO L129 PetriNetUnfolder]: 516/1312 cut-off events. [2021-03-25 09:34:16,845 INFO L130 PetriNetUnfolder]: For 66307/66310 co-relation queries the response was YES. [2021-03-25 09:34:16,866 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14110 conditions, 1312 events. 516/1312 cut-off events. For 66307/66310 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 9574 event pairs, 4 based on Foata normal form. 1/1124 useless extension candidates. Maximal degree in co-relation 13889. Up to 272 conditions per place. [2021-03-25 09:34:16,886 INFO L142 LiptonReduction]: Number of co-enabled transitions 1990 [2021-03-25 09:34:16,923 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:34:16,923 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:34:16,923 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 355 [2021-03-25 09:34:16,923 INFO L480 AbstractCegarLoop]: Abstraction has has 507 places, 565 transitions, 16259 flow [2021-03-25 09:34:16,923 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:16,923 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:34:16,923 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:34:16,923 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2021-03-25 09:34:16,923 INFO L428 AbstractCegarLoop]: === Iteration 186 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:34:16,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:34:16,924 INFO L82 PathProgramCache]: Analyzing trace with hash -483588181, now seen corresponding path program 16 times [2021-03-25 09:34:16,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:34:16,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927594030] [2021-03-25 09:34:16,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:34:16,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:34:16,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:16,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:34:16,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:16,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:34:16,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:16,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:16,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:16,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:34:16,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:16,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:16,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:16,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:34:16,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:16,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:16,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:16,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:17,007 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:34:17,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:34:17,022 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:34:17,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:17,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:34:17,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927594030] [2021-03-25 09:34:17,024 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:34:17,024 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:34:17,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500378663] [2021-03-25 09:34:17,024 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:34:17,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:34:17,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:34:17,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:34:17,025 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 137 [2021-03-25 09:34:17,025 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 507 places, 565 transitions, 16259 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:17,025 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:34:17,025 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 137 [2021-03-25 09:34:17,025 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:34:17,818 INFO L129 PetriNetUnfolder]: 562/1384 cut-off events. [2021-03-25 09:34:17,818 INFO L130 PetriNetUnfolder]: For 69655/69668 co-relation queries the response was YES. [2021-03-25 09:34:17,840 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15391 conditions, 1384 events. 562/1384 cut-off events. For 69655/69668 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 9872 event pairs, 18 based on Foata normal form. 14/1204 useless extension candidates. Maximal degree in co-relation 15160. Up to 752 conditions per place. [2021-03-25 09:34:17,846 INFO L132 encePairwiseOnDemand]: 119/137 looper letters, 479 selfloop transitions, 60 changer transitions 18/575 dead transitions. [2021-03-25 09:34:17,846 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 520 places, 575 transitions, 17646 flow [2021-03-25 09:34:17,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:34:17,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:34:17,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 742 transitions. [2021-03-25 09:34:17,848 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.38686131386861317 [2021-03-25 09:34:17,848 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 742 transitions. [2021-03-25 09:34:17,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 742 transitions. [2021-03-25 09:34:17,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:34:17,848 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 742 transitions. [2021-03-25 09:34:17,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 53.0) internal successors, (742), 14 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:17,849 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 137.0) internal successors, (2055), 15 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:17,849 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 137.0) internal successors, (2055), 15 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:17,849 INFO L185 Difference]: Start difference. First operand has 507 places, 565 transitions, 16259 flow. Second operand 14 states and 742 transitions. [2021-03-25 09:34:17,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 520 places, 575 transitions, 17646 flow [2021-03-25 09:34:18,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 513 places, 575 transitions, 17096 flow, removed 257 selfloop flow, removed 7 redundant places. [2021-03-25 09:34:18,494 INFO L241 Difference]: Finished difference. Result has 516 places, 552 transitions, 15577 flow [2021-03-25 09:34:18,495 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=15709, PETRI_DIFFERENCE_MINUEND_PLACES=500, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=565, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=505, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=15577, PETRI_PLACES=516, PETRI_TRANSITIONS=552} [2021-03-25 09:34:18,495 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 455 predicate places. [2021-03-25 09:34:18,495 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:34:18,495 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 516 places, 552 transitions, 15577 flow [2021-03-25 09:34:18,495 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 516 places, 552 transitions, 15577 flow [2021-03-25 09:34:18,500 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 514 places, 552 transitions, 15577 flow [2021-03-25 09:34:18,745 INFO L129 PetriNetUnfolder]: 497/1241 cut-off events. [2021-03-25 09:34:18,745 INFO L130 PetriNetUnfolder]: For 62028/62031 co-relation queries the response was YES. [2021-03-25 09:34:18,763 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13600 conditions, 1241 events. 497/1241 cut-off events. For 62028/62031 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 8804 event pairs, 4 based on Foata normal form. 1/1070 useless extension candidates. Maximal degree in co-relation 13377. Up to 255 conditions per place. [2021-03-25 09:34:18,781 INFO L142 LiptonReduction]: Number of co-enabled transitions 1878 [2021-03-25 09:34:18,816 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:34:18,817 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:34:18,817 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 322 [2021-03-25 09:34:18,817 INFO L480 AbstractCegarLoop]: Abstraction has has 514 places, 552 transitions, 15577 flow [2021-03-25 09:34:18,817 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:18,817 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:34:18,817 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:34:18,817 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2021-03-25 09:34:18,817 INFO L428 AbstractCegarLoop]: === Iteration 187 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:34:18,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:34:18,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1728547675, now seen corresponding path program 17 times [2021-03-25 09:34:18,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:34:18,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537382167] [2021-03-25 09:34:18,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:34:18,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:34:18,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:18,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:34:18,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:18,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:34:18,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:18,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:18,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:18,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:34:18,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:18,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:18,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:18,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:34:18,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:18,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:18,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:18,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:18,902 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:34:18,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:34:18,916 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:34:18,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:18,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:34:18,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537382167] [2021-03-25 09:34:18,919 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:34:18,919 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:34:18,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054478056] [2021-03-25 09:34:18,919 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:34:18,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:34:18,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:34:18,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:34:18,920 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 137 [2021-03-25 09:34:18,920 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 514 places, 552 transitions, 15577 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:18,920 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:34:18,920 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 137 [2021-03-25 09:34:18,920 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:34:19,635 INFO L129 PetriNetUnfolder]: 542/1314 cut-off events. [2021-03-25 09:34:19,635 INFO L130 PetriNetUnfolder]: For 63073/63079 co-relation queries the response was YES. [2021-03-25 09:34:19,653 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14935 conditions, 1314 events. 542/1314 cut-off events. For 63073/63079 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 9088 event pairs, 6 based on Foata normal form. 8/1145 useless extension candidates. Maximal degree in co-relation 14702. Up to 718 conditions per place. [2021-03-25 09:34:19,659 INFO L132 encePairwiseOnDemand]: 121/137 looper letters, 454 selfloop transitions, 88 changer transitions 3/563 dead transitions. [2021-03-25 09:34:19,659 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 527 places, 563 transitions, 16977 flow [2021-03-25 09:34:19,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:34:19,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:34:19,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 748 transitions. [2021-03-25 09:34:19,660 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3899895724713243 [2021-03-25 09:34:19,660 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 748 transitions. [2021-03-25 09:34:19,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 748 transitions. [2021-03-25 09:34:19,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:34:19,660 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 748 transitions. [2021-03-25 09:34:19,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 53.42857142857143) internal successors, (748), 14 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:19,661 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 137.0) internal successors, (2055), 15 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:19,662 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 137.0) internal successors, (2055), 15 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:19,662 INFO L185 Difference]: Start difference. First operand has 514 places, 552 transitions, 15577 flow. Second operand 14 states and 748 transitions. [2021-03-25 09:34:19,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 527 places, 563 transitions, 16977 flow [2021-03-25 09:34:20,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 510 places, 563 transitions, 16612 flow, removed 56 selfloop flow, removed 17 redundant places. [2021-03-25 09:34:20,299 INFO L241 Difference]: Finished difference. Result has 512 places, 553 transitions, 15590 flow [2021-03-25 09:34:20,299 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=15218, PETRI_DIFFERENCE_MINUEND_PLACES=497, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=552, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=465, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=15590, PETRI_PLACES=512, PETRI_TRANSITIONS=553} [2021-03-25 09:34:20,299 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 451 predicate places. [2021-03-25 09:34:20,299 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:34:20,300 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 512 places, 553 transitions, 15590 flow [2021-03-25 09:34:20,300 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 512 places, 553 transitions, 15590 flow [2021-03-25 09:34:20,305 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 512 places, 553 transitions, 15590 flow [2021-03-25 09:34:20,552 INFO L129 PetriNetUnfolder]: 502/1259 cut-off events. [2021-03-25 09:34:20,552 INFO L130 PetriNetUnfolder]: For 63763/63784 co-relation queries the response was YES. [2021-03-25 09:34:20,570 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13649 conditions, 1259 events. 502/1259 cut-off events. For 63763/63784 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 8978 event pairs, 3 based on Foata normal form. 1/1083 useless extension candidates. Maximal degree in co-relation 13431. Up to 256 conditions per place. [2021-03-25 09:34:20,589 INFO L142 LiptonReduction]: Number of co-enabled transitions 1898 [2021-03-25 09:34:20,624 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:34:20,625 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:34:20,625 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 326 [2021-03-25 09:34:20,625 INFO L480 AbstractCegarLoop]: Abstraction has has 512 places, 553 transitions, 15590 flow [2021-03-25 09:34:20,625 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:20,625 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:34:20,625 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:34:20,625 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2021-03-25 09:34:20,625 INFO L428 AbstractCegarLoop]: === Iteration 188 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:34:20,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:34:20,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1395938993, now seen corresponding path program 18 times [2021-03-25 09:34:20,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:34:20,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689592556] [2021-03-25 09:34:20,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:34:20,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:34:20,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:20,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:34:20,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:20,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:34:20,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:20,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:20,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:20,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:34:20,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:20,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:20,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:20,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:34:20,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:20,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:20,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:20,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:20,709 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:34:20,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:34:20,723 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:34:20,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:20,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:34:20,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689592556] [2021-03-25 09:34:20,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:34:20,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:34:20,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067354570] [2021-03-25 09:34:20,726 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:34:20,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:34:20,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:34:20,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:34:20,727 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 137 [2021-03-25 09:34:20,727 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 512 places, 553 transitions, 15590 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:20,727 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:34:20,727 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 137 [2021-03-25 09:34:20,727 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:34:21,480 INFO L129 PetriNetUnfolder]: 542/1307 cut-off events. [2021-03-25 09:34:21,480 INFO L130 PetriNetUnfolder]: For 62576/62580 co-relation queries the response was YES. [2021-03-25 09:34:21,498 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14695 conditions, 1307 events. 542/1307 cut-off events. For 62576/62580 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 8961 event pairs, 18 based on Foata normal form. 5/1135 useless extension candidates. Maximal degree in co-relation 14463. Up to 724 conditions per place. [2021-03-25 09:34:21,504 INFO L132 encePairwiseOnDemand]: 121/137 looper letters, 463 selfloop transitions, 72 changer transitions 6/559 dead transitions. [2021-03-25 09:34:21,504 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 524 places, 559 transitions, 16708 flow [2021-03-25 09:34:21,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:34:21,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:34:21,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 698 transitions. [2021-03-25 09:34:21,505 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.39191465468837733 [2021-03-25 09:34:21,506 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 698 transitions. [2021-03-25 09:34:21,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 698 transitions. [2021-03-25 09:34:21,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:34:21,506 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 698 transitions. [2021-03-25 09:34:21,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 53.69230769230769) internal successors, (698), 13 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:21,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:21,507 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:21,507 INFO L185 Difference]: Start difference. First operand has 512 places, 553 transitions, 15590 flow. Second operand 13 states and 698 transitions. [2021-03-25 09:34:21,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 524 places, 559 transitions, 16708 flow [2021-03-25 09:34:22,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 513 places, 559 transitions, 16353 flow, removed 111 selfloop flow, removed 11 redundant places. [2021-03-25 09:34:22,121 INFO L241 Difference]: Finished difference. Result has 514 places, 547 transitions, 15145 flow [2021-03-25 09:34:22,121 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=15235, PETRI_DIFFERENCE_MINUEND_PLACES=501, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=553, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=481, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=15145, PETRI_PLACES=514, PETRI_TRANSITIONS=547} [2021-03-25 09:34:22,121 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 453 predicate places. [2021-03-25 09:34:22,121 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:34:22,121 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 514 places, 547 transitions, 15145 flow [2021-03-25 09:34:22,121 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 514 places, 547 transitions, 15145 flow [2021-03-25 09:34:22,126 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 514 places, 547 transitions, 15145 flow [2021-03-25 09:34:22,363 INFO L129 PetriNetUnfolder]: 494/1219 cut-off events. [2021-03-25 09:34:22,363 INFO L130 PetriNetUnfolder]: For 61745/61767 co-relation queries the response was YES. [2021-03-25 09:34:22,381 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13276 conditions, 1219 events. 494/1219 cut-off events. For 61745/61767 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 8524 event pairs, 4 based on Foata normal form. 2/1052 useless extension candidates. Maximal degree in co-relation 13058. Up to 249 conditions per place. [2021-03-25 09:34:22,399 INFO L142 LiptonReduction]: Number of co-enabled transitions 1846 [2021-03-25 09:34:22,434 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:34:22,434 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:34:22,434 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 313 [2021-03-25 09:34:22,434 INFO L480 AbstractCegarLoop]: Abstraction has has 514 places, 547 transitions, 15145 flow [2021-03-25 09:34:22,434 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:22,434 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:34:22,434 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:34:22,435 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2021-03-25 09:34:22,435 INFO L428 AbstractCegarLoop]: === Iteration 189 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:34:22,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:34:22,435 INFO L82 PathProgramCache]: Analyzing trace with hash 1589630949, now seen corresponding path program 19 times [2021-03-25 09:34:22,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:34:22,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706569489] [2021-03-25 09:34:22,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:34:22,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:34:22,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:22,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:34:22,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:22,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:34:22,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:22,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:22,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:22,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:34:22,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:22,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:22,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:22,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:34:22,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:22,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:22,504 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:34:22,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:34:22,511 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:34:22,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:34:22,524 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:34:22,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:22,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:34:22,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706569489] [2021-03-25 09:34:22,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:34:22,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:34:22,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151885150] [2021-03-25 09:34:22,527 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:34:22,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:34:22,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:34:22,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:34:22,528 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 137 [2021-03-25 09:34:22,528 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 514 places, 547 transitions, 15145 flow. Second operand has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:22,528 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:34:22,528 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 137 [2021-03-25 09:34:22,528 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:34:23,181 INFO L129 PetriNetUnfolder]: 543/1303 cut-off events. [2021-03-25 09:34:23,181 INFO L130 PetriNetUnfolder]: For 60229/60244 co-relation queries the response was YES. [2021-03-25 09:34:23,200 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14442 conditions, 1303 events. 543/1303 cut-off events. For 60229/60244 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 9001 event pairs, 5 based on Foata normal form. 12/1137 useless extension candidates. Maximal degree in co-relation 14213. Up to 751 conditions per place. [2021-03-25 09:34:23,206 INFO L132 encePairwiseOnDemand]: 123/137 looper letters, 496 selfloop transitions, 37 changer transitions 3/554 dead transitions. [2021-03-25 09:34:23,206 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 524 places, 554 transitions, 16331 flow [2021-03-25 09:34:23,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:34:23,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:34:23,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 585 transitions. [2021-03-25 09:34:23,207 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.38818845388188455 [2021-03-25 09:34:23,207 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 585 transitions. [2021-03-25 09:34:23,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 585 transitions. [2021-03-25 09:34:23,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:34:23,207 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 585 transitions. [2021-03-25 09:34:23,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 53.18181818181818) internal successors, (585), 11 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:23,208 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 137.0) internal successors, (1644), 12 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:23,208 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 137.0) internal successors, (1644), 12 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:23,208 INFO L185 Difference]: Start difference. First operand has 514 places, 547 transitions, 15145 flow. Second operand 11 states and 585 transitions. [2021-03-25 09:34:23,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 524 places, 554 transitions, 16331 flow [2021-03-25 09:34:23,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 507 places, 554 transitions, 16034 flow, removed 33 selfloop flow, removed 17 redundant places. [2021-03-25 09:34:23,787 INFO L241 Difference]: Finished difference. Result has 510 places, 548 transitions, 14960 flow [2021-03-25 09:34:23,787 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=14850, PETRI_DIFFERENCE_MINUEND_PLACES=497, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=547, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=510, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=14960, PETRI_PLACES=510, PETRI_TRANSITIONS=548} [2021-03-25 09:34:23,787 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 449 predicate places. [2021-03-25 09:34:23,787 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:34:23,787 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 510 places, 548 transitions, 14960 flow [2021-03-25 09:34:23,787 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 510 places, 548 transitions, 14960 flow [2021-03-25 09:34:23,792 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 510 places, 548 transitions, 14960 flow [2021-03-25 09:34:24,047 INFO L129 PetriNetUnfolder]: 495/1226 cut-off events. [2021-03-25 09:34:24,047 INFO L130 PetriNetUnfolder]: For 59577/59598 co-relation queries the response was YES. [2021-03-25 09:34:24,064 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13121 conditions, 1226 events. 495/1226 cut-off events. For 59577/59598 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 8617 event pairs, 6 based on Foata normal form. 1/1057 useless extension candidates. Maximal degree in co-relation 12903. Up to 249 conditions per place. [2021-03-25 09:34:24,082 INFO L142 LiptonReduction]: Number of co-enabled transitions 1854 [2021-03-25 09:34:24,115 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:34:24,115 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:34:24,115 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 328 [2021-03-25 09:34:24,116 INFO L480 AbstractCegarLoop]: Abstraction has has 510 places, 548 transitions, 14960 flow [2021-03-25 09:34:24,116 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:24,116 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:34:24,116 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:34:24,116 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2021-03-25 09:34:24,116 INFO L428 AbstractCegarLoop]: === Iteration 190 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:34:24,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:34:24,116 INFO L82 PathProgramCache]: Analyzing trace with hash 967016023, now seen corresponding path program 20 times [2021-03-25 09:34:24,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:34:24,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411160875] [2021-03-25 09:34:24,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:34:24,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:34:24,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:24,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:34:24,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:24,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:34:24,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:24,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:24,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:24,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:34:24,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:24,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:24,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:24,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:34:24,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:24,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:24,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:24,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:24,198 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:34:24,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:34:24,212 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:34:24,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:24,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:34:24,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411160875] [2021-03-25 09:34:24,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:34:24,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:34:24,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740143198] [2021-03-25 09:34:24,215 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:34:24,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:34:24,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:34:24,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:34:24,215 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 137 [2021-03-25 09:34:24,215 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 510 places, 548 transitions, 14960 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:24,216 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:34:24,216 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 137 [2021-03-25 09:34:24,216 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:34:24,869 INFO L129 PetriNetUnfolder]: 538/1290 cut-off events. [2021-03-25 09:34:24,869 INFO L130 PetriNetUnfolder]: For 57888/57901 co-relation queries the response was YES. [2021-03-25 09:34:24,888 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14196 conditions, 1290 events. 538/1290 cut-off events. For 57888/57901 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 8785 event pairs, 18 based on Foata normal form. 10/1126 useless extension candidates. Maximal degree in co-relation 13964. Up to 750 conditions per place. [2021-03-25 09:34:24,894 INFO L132 encePairwiseOnDemand]: 123/137 looper letters, 493 selfloop transitions, 32 changer transitions 8/551 dead transitions. [2021-03-25 09:34:24,894 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 521 places, 551 transitions, 16044 flow [2021-03-25 09:34:24,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:34:24,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:34:24,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 634 transitions. [2021-03-25 09:34:24,895 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.38564476885644766 [2021-03-25 09:34:24,895 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 634 transitions. [2021-03-25 09:34:24,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 634 transitions. [2021-03-25 09:34:24,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:34:24,895 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 634 transitions. [2021-03-25 09:34:24,896 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 52.833333333333336) internal successors, (634), 12 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:24,896 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:24,896 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:24,896 INFO L185 Difference]: Start difference. First operand has 510 places, 548 transitions, 14960 flow. Second operand 12 states and 634 transitions. [2021-03-25 09:34:24,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 521 places, 551 transitions, 16044 flow [2021-03-25 09:34:25,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 511 places, 551 transitions, 15906 flow, removed 27 selfloop flow, removed 10 redundant places. [2021-03-25 09:34:25,458 INFO L241 Difference]: Finished difference. Result has 512 places, 540 transitions, 14797 flow [2021-03-25 09:34:25,458 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=14822, PETRI_DIFFERENCE_MINUEND_PLACES=500, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=548, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=516, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=14797, PETRI_PLACES=512, PETRI_TRANSITIONS=540} [2021-03-25 09:34:25,458 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 451 predicate places. [2021-03-25 09:34:25,458 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:34:25,458 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 512 places, 540 transitions, 14797 flow [2021-03-25 09:34:25,458 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 512 places, 540 transitions, 14797 flow [2021-03-25 09:34:25,463 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 508 places, 540 transitions, 14797 flow [2021-03-25 09:34:25,693 INFO L129 PetriNetUnfolder]: 490/1206 cut-off events. [2021-03-25 09:34:25,693 INFO L130 PetriNetUnfolder]: For 58355/58376 co-relation queries the response was YES. [2021-03-25 09:34:25,711 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13022 conditions, 1206 events. 490/1206 cut-off events. For 58355/58376 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 8405 event pairs, 7 based on Foata normal form. 1/1041 useless extension candidates. Maximal degree in co-relation 12805. Up to 248 conditions per place. [2021-03-25 09:34:25,729 INFO L142 LiptonReduction]: Number of co-enabled transitions 1818 [2021-03-25 09:34:25,764 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:34:25,764 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:34:25,764 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 306 [2021-03-25 09:34:25,764 INFO L480 AbstractCegarLoop]: Abstraction has has 508 places, 540 transitions, 14797 flow [2021-03-25 09:34:25,765 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:25,765 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:34:25,765 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:34:25,765 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2021-03-25 09:34:25,765 INFO L428 AbstractCegarLoop]: === Iteration 191 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:34:25,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:34:25,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1036839391, now seen corresponding path program 64 times [2021-03-25 09:34:25,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:34:25,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206548237] [2021-03-25 09:34:25,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:34:25,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:34:25,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:25,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:34:25,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:25,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:34:25,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:25,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:25,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:25,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:25,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:25,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:25,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:25,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:25,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:25,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:34:25,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:25,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:25,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:25,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:25,867 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:34:25,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:34:25,882 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:34:25,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:25,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:34:25,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206548237] [2021-03-25 09:34:25,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:34:25,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:34:25,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181784780] [2021-03-25 09:34:25,885 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:34:25,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:34:25,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:34:25,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:34:25,886 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 137 [2021-03-25 09:34:25,886 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 508 places, 540 transitions, 14797 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:25,886 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:34:25,886 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 137 [2021-03-25 09:34:25,886 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:34:26,671 INFO L129 PetriNetUnfolder]: 531/1259 cut-off events. [2021-03-25 09:34:26,671 INFO L130 PetriNetUnfolder]: For 56410/56414 co-relation queries the response was YES. [2021-03-25 09:34:26,690 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14057 conditions, 1259 events. 531/1259 cut-off events. For 56410/56414 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 8447 event pairs, 8 based on Foata normal form. 5/1097 useless extension candidates. Maximal degree in co-relation 13826. Up to 628 conditions per place. [2021-03-25 09:34:26,696 INFO L132 encePairwiseOnDemand]: 118/137 looper letters, 355 selfloop transitions, 140 changer transitions 38/551 dead transitions. [2021-03-25 09:34:26,696 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 521 places, 551 transitions, 16002 flow [2021-03-25 09:34:26,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:34:26,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:34:26,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 752 transitions. [2021-03-25 09:34:26,697 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3920750782064651 [2021-03-25 09:34:26,697 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 752 transitions. [2021-03-25 09:34:26,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 752 transitions. [2021-03-25 09:34:26,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:34:26,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 752 transitions. [2021-03-25 09:34:26,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 53.714285714285715) internal successors, (752), 14 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:26,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 137.0) internal successors, (2055), 15 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:26,699 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 137.0) internal successors, (2055), 15 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:26,699 INFO L185 Difference]: Start difference. First operand has 508 places, 540 transitions, 14797 flow. Second operand 14 states and 752 transitions. [2021-03-25 09:34:26,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 521 places, 551 transitions, 16002 flow [2021-03-25 09:34:27,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 505 places, 551 transitions, 15848 flow, removed 8 selfloop flow, removed 16 redundant places. [2021-03-25 09:34:27,243 INFO L241 Difference]: Finished difference. Result has 507 places, 504 transitions, 14007 flow [2021-03-25 09:34:27,243 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=14643, PETRI_DIFFERENCE_MINUEND_PLACES=492, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=540, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=140, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=14007, PETRI_PLACES=507, PETRI_TRANSITIONS=504} [2021-03-25 09:34:27,243 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 446 predicate places. [2021-03-25 09:34:27,243 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:34:27,243 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 507 places, 504 transitions, 14007 flow [2021-03-25 09:34:27,243 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 507 places, 504 transitions, 14007 flow [2021-03-25 09:34:27,248 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 494 places, 504 transitions, 14007 flow [2021-03-25 09:34:27,454 INFO L129 PetriNetUnfolder]: 451/1073 cut-off events. [2021-03-25 09:34:27,454 INFO L130 PetriNetUnfolder]: For 55262/55265 co-relation queries the response was YES. [2021-03-25 09:34:27,469 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12315 conditions, 1073 events. 451/1073 cut-off events. For 55262/55265 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 7001 event pairs, 12 based on Foata normal form. 1/937 useless extension candidates. Maximal degree in co-relation 12112. Up to 244 conditions per place. [2021-03-25 09:34:27,484 INFO L142 LiptonReduction]: Number of co-enabled transitions 1566 [2021-03-25 09:34:27,515 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:34:27,515 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:34:27,515 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 272 [2021-03-25 09:34:27,515 INFO L480 AbstractCegarLoop]: Abstraction has has 494 places, 504 transitions, 14007 flow [2021-03-25 09:34:27,516 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:27,516 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:34:27,516 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:34:27,516 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2021-03-25 09:34:27,516 INFO L428 AbstractCegarLoop]: === Iteration 192 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:34:27,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:34:27,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1208496905, now seen corresponding path program 65 times [2021-03-25 09:34:27,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:34:27,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145049754] [2021-03-25 09:34:27,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:34:27,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:34:27,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:27,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:34:27,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:27,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:34:27,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:27,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:27,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:27,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:27,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:27,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:27,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:27,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:27,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:27,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:34:27,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:27,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:27,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:27,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:27,634 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:34:27,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:34:27,640 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:34:27,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:27,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:34:27,642 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145049754] [2021-03-25 09:34:27,642 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:34:27,642 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:34:27,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868218088] [2021-03-25 09:34:27,642 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:34:27,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:34:27,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:34:27,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:34:27,643 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 137 [2021-03-25 09:34:27,643 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 494 places, 504 transitions, 14007 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:27,643 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:34:27,643 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 137 [2021-03-25 09:34:27,643 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:34:28,251 INFO L129 PetriNetUnfolder]: 492/1127 cut-off events. [2021-03-25 09:34:28,251 INFO L130 PetriNetUnfolder]: For 56500/56504 co-relation queries the response was YES. [2021-03-25 09:34:28,267 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13466 conditions, 1127 events. 492/1127 cut-off events. For 56500/56504 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 7128 event pairs, 18 based on Foata normal form. 5/994 useless extension candidates. Maximal degree in co-relation 13237. Up to 632 conditions per place. [2021-03-25 09:34:28,273 INFO L132 encePairwiseOnDemand]: 120/137 looper letters, 366 selfloop transitions, 126 changer transitions 0/510 dead transitions. [2021-03-25 09:34:28,273 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 507 places, 510 transitions, 15027 flow [2021-03-25 09:34:28,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:34:28,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:34:28,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 744 transitions. [2021-03-25 09:34:28,274 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.38790406673618355 [2021-03-25 09:34:28,274 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 744 transitions. [2021-03-25 09:34:28,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 744 transitions. [2021-03-25 09:34:28,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:34:28,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 744 transitions. [2021-03-25 09:34:28,275 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 53.142857142857146) internal successors, (744), 14 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:28,277 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 137.0) internal successors, (2055), 15 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:28,277 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 137.0) internal successors, (2055), 15 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:28,277 INFO L185 Difference]: Start difference. First operand has 494 places, 504 transitions, 14007 flow. Second operand 14 states and 744 transitions. [2021-03-25 09:34:28,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 507 places, 510 transitions, 15027 flow [2021-03-25 09:34:28,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 469 places, 510 transitions, 14351 flow, removed 45 selfloop flow, removed 38 redundant places. [2021-03-25 09:34:28,752 INFO L241 Difference]: Finished difference. Result has 470 places, 504 transitions, 13636 flow [2021-03-25 09:34:28,752 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=13331, PETRI_DIFFERENCE_MINUEND_PLACES=456, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=504, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=126, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=378, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=13636, PETRI_PLACES=470, PETRI_TRANSITIONS=504} [2021-03-25 09:34:28,752 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 409 predicate places. [2021-03-25 09:34:28,752 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:34:28,752 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 470 places, 504 transitions, 13636 flow [2021-03-25 09:34:28,752 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 470 places, 504 transitions, 13636 flow [2021-03-25 09:34:28,757 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 470 places, 504 transitions, 13636 flow [2021-03-25 09:34:28,938 INFO L129 PetriNetUnfolder]: 451/1072 cut-off events. [2021-03-25 09:34:28,938 INFO L130 PetriNetUnfolder]: For 53008/53029 co-relation queries the response was YES. [2021-03-25 09:34:28,952 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12095 conditions, 1072 events. 451/1072 cut-off events. For 53008/53029 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 7028 event pairs, 3 based on Foata normal form. 1/936 useless extension candidates. Maximal degree in co-relation 11897. Up to 248 conditions per place. [2021-03-25 09:34:28,968 INFO L142 LiptonReduction]: Number of co-enabled transitions 1566 [2021-03-25 09:34:28,997 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:34:28,997 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:34:28,997 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 245 [2021-03-25 09:34:28,998 INFO L480 AbstractCegarLoop]: Abstraction has has 470 places, 504 transitions, 13636 flow [2021-03-25 09:34:28,998 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:28,998 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:34:28,998 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:34:28,998 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2021-03-25 09:34:28,998 INFO L428 AbstractCegarLoop]: === Iteration 193 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:34:28,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:34:28,998 INFO L82 PathProgramCache]: Analyzing trace with hash 34528647, now seen corresponding path program 66 times [2021-03-25 09:34:28,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:34:28,998 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381572314] [2021-03-25 09:34:28,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:34:29,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:34:29,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:29,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:34:29,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:29,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:34:29,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:29,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:29,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:29,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:29,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:29,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:29,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:29,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:29,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:29,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:34:29,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:29,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:29,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:29,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:29,092 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:34:29,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:34:29,108 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:34:29,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:29,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:34:29,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381572314] [2021-03-25 09:34:29,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:34:29,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:34:29,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648452301] [2021-03-25 09:34:29,110 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:34:29,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:34:29,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:34:29,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:34:29,111 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 137 [2021-03-25 09:34:29,111 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 504 transitions, 13636 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:29,111 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:34:29,111 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 137 [2021-03-25 09:34:29,111 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:34:29,854 INFO L129 PetriNetUnfolder]: 490/1131 cut-off events. [2021-03-25 09:34:29,854 INFO L130 PetriNetUnfolder]: For 52112/52127 co-relation queries the response was YES. [2021-03-25 09:34:29,869 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13169 conditions, 1131 events. 490/1131 cut-off events. For 52112/52127 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 7213 event pairs, 7 based on Foata normal form. 16/1010 useless extension candidates. Maximal degree in co-relation 12955. Up to 628 conditions per place. [2021-03-25 09:34:29,874 INFO L132 encePairwiseOnDemand]: 119/137 looper letters, 371 selfloop transitions, 115 changer transitions 15/519 dead transitions. [2021-03-25 09:34:29,874 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 487 places, 519 transitions, 14851 flow [2021-03-25 09:34:29,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-25 09:34:29,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-25 09:34:29,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 956 transitions. [2021-03-25 09:34:29,875 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.38767234387672345 [2021-03-25 09:34:29,875 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 956 transitions. [2021-03-25 09:34:29,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 956 transitions. [2021-03-25 09:34:29,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:34:29,876 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 956 transitions. [2021-03-25 09:34:29,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 53.111111111111114) internal successors, (956), 18 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:29,877 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 137.0) internal successors, (2603), 19 states have internal predecessors, (2603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:29,877 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 137.0) internal successors, (2603), 19 states have internal predecessors, (2603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:29,877 INFO L185 Difference]: Start difference. First operand has 470 places, 504 transitions, 13636 flow. Second operand 18 states and 956 transitions. [2021-03-25 09:34:29,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 487 places, 519 transitions, 14851 flow [2021-03-25 09:34:30,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 477 places, 519 transitions, 14699 flow, removed 1 selfloop flow, removed 10 redundant places. [2021-03-25 09:34:30,345 INFO L241 Difference]: Finished difference. Result has 481 places, 492 transitions, 13303 flow [2021-03-25 09:34:30,345 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=13484, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=504, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=113, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=389, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=13303, PETRI_PLACES=481, PETRI_TRANSITIONS=492} [2021-03-25 09:34:30,345 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 420 predicate places. [2021-03-25 09:34:30,345 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:34:30,345 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 481 places, 492 transitions, 13303 flow [2021-03-25 09:34:30,346 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 481 places, 492 transitions, 13303 flow [2021-03-25 09:34:30,350 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 478 places, 492 transitions, 13303 flow [2021-03-25 09:34:30,538 INFO L129 PetriNetUnfolder]: 437/1045 cut-off events. [2021-03-25 09:34:30,538 INFO L130 PetriNetUnfolder]: For 54462/54506 co-relation queries the response was YES. [2021-03-25 09:34:30,552 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11847 conditions, 1045 events. 437/1045 cut-off events. For 54462/54506 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 6816 event pairs, 5 based on Foata normal form. 4/914 useless extension candidates. Maximal degree in co-relation 11645. Up to 243 conditions per place. [2021-03-25 09:34:30,566 INFO L142 LiptonReduction]: Number of co-enabled transitions 1562 [2021-03-25 09:34:30,595 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:34:30,595 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:34:30,595 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 250 [2021-03-25 09:34:30,596 INFO L480 AbstractCegarLoop]: Abstraction has has 478 places, 492 transitions, 13303 flow [2021-03-25 09:34:30,596 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:30,596 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:34:30,596 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:34:30,596 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2021-03-25 09:34:30,596 INFO L428 AbstractCegarLoop]: === Iteration 194 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:34:30,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:34:30,596 INFO L82 PathProgramCache]: Analyzing trace with hash -1250258381, now seen corresponding path program 67 times [2021-03-25 09:34:30,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:34:30,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820054809] [2021-03-25 09:34:30,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:34:30,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:34:30,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:30,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:34:30,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:30,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:34:30,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:30,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:30,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:30,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:30,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:30,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:30,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:30,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:34:30,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:30,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:30,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:30,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:30,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:30,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:30,682 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:34:30,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:34:30,697 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:34:30,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:30,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:34:30,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820054809] [2021-03-25 09:34:30,699 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:34:30,700 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:34:30,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587956130] [2021-03-25 09:34:30,700 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:34:30,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:34:30,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:34:30,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:34:30,700 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 137 [2021-03-25 09:34:30,701 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 478 places, 492 transitions, 13303 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:30,701 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:34:30,701 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 137 [2021-03-25 09:34:30,701 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:34:31,387 INFO L129 PetriNetUnfolder]: 489/1142 cut-off events. [2021-03-25 09:34:31,388 INFO L130 PetriNetUnfolder]: For 56438/56442 co-relation queries the response was YES. [2021-03-25 09:34:31,403 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13284 conditions, 1142 events. 489/1142 cut-off events. For 56438/56442 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 7368 event pairs, 19 based on Foata normal form. 5/1005 useless extension candidates. Maximal degree in co-relation 13071. Up to 633 conditions per place. [2021-03-25 09:34:31,409 INFO L132 encePairwiseOnDemand]: 118/137 looper letters, 403 selfloop transitions, 91 changer transitions 0/512 dead transitions. [2021-03-25 09:34:31,409 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 491 places, 512 transitions, 14905 flow [2021-03-25 09:34:31,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:34:31,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:34:31,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 755 transitions. [2021-03-25 09:34:31,410 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.39363920750782067 [2021-03-25 09:34:31,410 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 755 transitions. [2021-03-25 09:34:31,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 755 transitions. [2021-03-25 09:34:31,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:34:31,411 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 755 transitions. [2021-03-25 09:34:31,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 53.92857142857143) internal successors, (755), 14 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:31,412 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 137.0) internal successors, (2055), 15 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:31,412 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 137.0) internal successors, (2055), 15 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:31,412 INFO L185 Difference]: Start difference. First operand has 478 places, 492 transitions, 13303 flow. Second operand 14 states and 755 transitions. [2021-03-25 09:34:31,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 491 places, 512 transitions, 14905 flow [2021-03-25 09:34:31,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 512 transitions, 14290 flow, removed 110 selfloop flow, removed 30 redundant places. [2021-03-25 09:34:31,911 INFO L241 Difference]: Finished difference. Result has 462 places, 501 transitions, 13406 flow [2021-03-25 09:34:31,911 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=12690, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=492, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=13406, PETRI_PLACES=462, PETRI_TRANSITIONS=501} [2021-03-25 09:34:31,911 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 401 predicate places. [2021-03-25 09:34:31,911 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:34:31,911 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 462 places, 501 transitions, 13406 flow [2021-03-25 09:34:31,911 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 462 places, 501 transitions, 13406 flow [2021-03-25 09:34:31,916 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 462 places, 501 transitions, 13406 flow [2021-03-25 09:34:32,108 INFO L129 PetriNetUnfolder]: 449/1087 cut-off events. [2021-03-25 09:34:32,109 INFO L130 PetriNetUnfolder]: For 56278/56299 co-relation queries the response was YES. [2021-03-25 09:34:32,125 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12095 conditions, 1087 events. 449/1087 cut-off events. For 56278/56299 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 7252 event pairs, 6 based on Foata normal form. 1/946 useless extension candidates. Maximal degree in co-relation 11886. Up to 253 conditions per place. [2021-03-25 09:34:32,140 INFO L142 LiptonReduction]: Number of co-enabled transitions 1656 [2021-03-25 09:34:32,170 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:34:32,170 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:34:32,171 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 260 [2021-03-25 09:34:32,171 INFO L480 AbstractCegarLoop]: Abstraction has has 462 places, 501 transitions, 13406 flow [2021-03-25 09:34:32,171 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:32,171 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:34:32,171 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:34:32,171 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2021-03-25 09:34:32,171 INFO L428 AbstractCegarLoop]: === Iteration 195 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:34:32,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:34:32,171 INFO L82 PathProgramCache]: Analyzing trace with hash 234830945, now seen corresponding path program 68 times [2021-03-25 09:34:32,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:34:32,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958370056] [2021-03-25 09:34:32,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:34:32,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:34:32,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:32,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:34:32,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:32,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:34:32,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:32,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:32,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:32,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:32,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:32,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:32,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:32,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:34:32,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:32,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:32,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:32,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:32,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:32,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:32,257 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:34:32,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:34:32,271 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:34:32,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:32,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:34:32,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958370056] [2021-03-25 09:34:32,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:34:32,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:34:32,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381062934] [2021-03-25 09:34:32,274 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:34:32,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:34:32,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:34:32,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:34:32,275 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 137 [2021-03-25 09:34:32,275 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 501 transitions, 13406 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:32,275 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:34:32,275 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 137 [2021-03-25 09:34:32,275 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:34:32,941 INFO L129 PetriNetUnfolder]: 498/1169 cut-off events. [2021-03-25 09:34:32,941 INFO L130 PetriNetUnfolder]: For 57262/57266 co-relation queries the response was YES. [2021-03-25 09:34:32,957 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13416 conditions, 1169 events. 498/1169 cut-off events. For 57262/57266 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 7625 event pairs, 11 based on Foata normal form. 5/1026 useless extension candidates. Maximal degree in co-relation 13207. Up to 623 conditions per place. [2021-03-25 09:34:32,963 INFO L132 encePairwiseOnDemand]: 118/137 looper letters, 374 selfloop transitions, 129 changer transitions 0/521 dead transitions. [2021-03-25 09:34:32,963 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 474 places, 521 transitions, 14994 flow [2021-03-25 09:34:32,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:34:32,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:34:32,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 705 transitions. [2021-03-25 09:34:32,964 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3958450308815272 [2021-03-25 09:34:32,964 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 705 transitions. [2021-03-25 09:34:32,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 705 transitions. [2021-03-25 09:34:32,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:34:32,964 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 705 transitions. [2021-03-25 09:34:32,965 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 54.23076923076923) internal successors, (705), 13 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:32,966 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:32,966 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:32,966 INFO L185 Difference]: Start difference. First operand has 462 places, 501 transitions, 13406 flow. Second operand 13 states and 705 transitions. [2021-03-25 09:34:32,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 474 places, 521 transitions, 14994 flow [2021-03-25 09:34:33,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 521 transitions, 14383 flow, removed 263 selfloop flow, removed 6 redundant places. [2021-03-25 09:34:33,433 INFO L241 Difference]: Finished difference. Result has 470 places, 510 transitions, 13607 flow [2021-03-25 09:34:33,433 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=12809, PETRI_DIFFERENCE_MINUEND_PLACES=456, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=501, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=376, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=13607, PETRI_PLACES=470, PETRI_TRANSITIONS=510} [2021-03-25 09:34:33,433 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 409 predicate places. [2021-03-25 09:34:33,433 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:34:33,433 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 470 places, 510 transitions, 13607 flow [2021-03-25 09:34:33,433 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 470 places, 510 transitions, 13607 flow [2021-03-25 09:34:33,438 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 470 places, 510 transitions, 13607 flow [2021-03-25 09:34:33,636 INFO L129 PetriNetUnfolder]: 466/1135 cut-off events. [2021-03-25 09:34:33,637 INFO L130 PetriNetUnfolder]: For 53817/53820 co-relation queries the response was YES. [2021-03-25 09:34:33,653 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12155 conditions, 1135 events. 466/1135 cut-off events. For 53817/53820 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 7674 event pairs, 9 based on Foata normal form. 1/979 useless extension candidates. Maximal degree in co-relation 11954. Up to 250 conditions per place. [2021-03-25 09:34:33,669 INFO L142 LiptonReduction]: Number of co-enabled transitions 1738 [2021-03-25 09:34:33,759 INFO L154 LiptonReduction]: Checked pairs total: 5 [2021-03-25 09:34:33,759 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:34:33,759 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 326 [2021-03-25 09:34:33,759 INFO L480 AbstractCegarLoop]: Abstraction has has 470 places, 510 transitions, 13660 flow [2021-03-25 09:34:33,760 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:33,760 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:34:33,760 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:34:33,760 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2021-03-25 09:34:33,760 INFO L428 AbstractCegarLoop]: === Iteration 196 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:34:33,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:34:33,760 INFO L82 PathProgramCache]: Analyzing trace with hash -683119245, now seen corresponding path program 69 times [2021-03-25 09:34:33,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:34:33,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729269508] [2021-03-25 09:34:33,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:34:33,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:34:33,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:33,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:34:33,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:33,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:34:33,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:33,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:33,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:33,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:33,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:33,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:33,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:33,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:34:33,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:33,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:33,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:33,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:33,831 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:34:33,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:34:33,844 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:34:33,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:34:33,858 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:34:33,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:33,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:34:33,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729269508] [2021-03-25 09:34:33,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:34:33,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:34:33,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213280229] [2021-03-25 09:34:33,861 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:34:33,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:34:33,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:34:33,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:34:33,862 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 138 [2021-03-25 09:34:33,862 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 510 transitions, 13660 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:33,862 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:34:33,862 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 138 [2021-03-25 09:34:33,862 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:34:34,591 INFO L129 PetriNetUnfolder]: 514/1232 cut-off events. [2021-03-25 09:34:34,591 INFO L130 PetriNetUnfolder]: For 60827/60833 co-relation queries the response was YES. [2021-03-25 09:34:34,607 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13938 conditions, 1232 events. 514/1232 cut-off events. For 60827/60833 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 8325 event pairs, 11 based on Foata normal form. 8/1079 useless extension candidates. Maximal degree in co-relation 13720. Up to 550 conditions per place. [2021-03-25 09:34:34,611 INFO L132 encePairwiseOnDemand]: 117/138 looper letters, 327 selfloop transitions, 180 changer transitions 16/541 dead transitions. [2021-03-25 09:34:34,612 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 481 places, 541 transitions, 15790 flow [2021-03-25 09:34:34,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:34:34,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:34:34,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 670 transitions. [2021-03-25 09:34:34,613 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.40458937198067635 [2021-03-25 09:34:34,613 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 670 transitions. [2021-03-25 09:34:34,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 670 transitions. [2021-03-25 09:34:34,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:34:34,613 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 670 transitions. [2021-03-25 09:34:34,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 55.833333333333336) internal successors, (670), 12 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:34,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 138.0) internal successors, (1794), 13 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:34,614 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 138.0) internal successors, (1794), 13 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:34,614 INFO L185 Difference]: Start difference. First operand has 470 places, 510 transitions, 13660 flow. Second operand 12 states and 670 transitions. [2021-03-25 09:34:34,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 481 places, 541 transitions, 15790 flow [2021-03-25 09:34:35,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 476 places, 541 transitions, 15139 flow, removed 256 selfloop flow, removed 5 redundant places. [2021-03-25 09:34:35,082 INFO L241 Difference]: Finished difference. Result has 479 places, 511 transitions, 14035 flow [2021-03-25 09:34:35,082 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=13009, PETRI_DIFFERENCE_MINUEND_PLACES=465, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=510, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=166, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=14035, PETRI_PLACES=479, PETRI_TRANSITIONS=511} [2021-03-25 09:34:35,082 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 418 predicate places. [2021-03-25 09:34:35,082 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:34:35,082 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 479 places, 511 transitions, 14035 flow [2021-03-25 09:34:35,082 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 479 places, 511 transitions, 14035 flow [2021-03-25 09:34:35,087 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 475 places, 511 transitions, 14035 flow [2021-03-25 09:34:35,276 INFO L129 PetriNetUnfolder]: 467/1150 cut-off events. [2021-03-25 09:34:35,276 INFO L130 PetriNetUnfolder]: For 59827/59848 co-relation queries the response was YES. [2021-03-25 09:34:35,294 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12606 conditions, 1150 events. 467/1150 cut-off events. For 59827/59848 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 7915 event pairs, 15 based on Foata normal form. 1/989 useless extension candidates. Maximal degree in co-relation 12401. Up to 255 conditions per place. [2021-03-25 09:34:35,311 INFO L142 LiptonReduction]: Number of co-enabled transitions 1812 [2021-03-25 09:34:35,343 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:34:35,343 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:34:35,344 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 262 [2021-03-25 09:34:35,344 INFO L480 AbstractCegarLoop]: Abstraction has has 475 places, 511 transitions, 14035 flow [2021-03-25 09:34:35,344 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:35,344 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:34:35,344 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:34:35,344 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2021-03-25 09:34:35,344 INFO L428 AbstractCegarLoop]: === Iteration 197 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:34:35,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:34:35,344 INFO L82 PathProgramCache]: Analyzing trace with hash -56068365, now seen corresponding path program 70 times [2021-03-25 09:34:35,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:34:35,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973180977] [2021-03-25 09:34:35,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:34:35,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:34:35,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:35,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:34:35,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:35,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:34:35,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:35,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:35,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:35,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:35,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:35,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:35,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:35,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:34:35,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:35,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:35,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:35,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:35,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:35,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:35,445 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:34:35,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:34:35,460 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:34:35,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:35,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:34:35,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973180977] [2021-03-25 09:34:35,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:34:35,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:34:35,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630203278] [2021-03-25 09:34:35,462 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:34:35,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:34:35,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:34:35,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:34:35,463 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 138 [2021-03-25 09:34:35,463 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 475 places, 511 transitions, 14035 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:35,464 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:34:35,464 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 138 [2021-03-25 09:34:35,464 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:34:36,159 INFO L129 PetriNetUnfolder]: 511/1244 cut-off events. [2021-03-25 09:34:36,160 INFO L130 PetriNetUnfolder]: For 63640/63655 co-relation queries the response was YES. [2021-03-25 09:34:36,179 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13953 conditions, 1244 events. 511/1244 cut-off events. For 63640/63655 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 8551 event pairs, 6 based on Foata normal form. 17/1093 useless extension candidates. Maximal degree in co-relation 13730. Up to 613 conditions per place. [2021-03-25 09:34:36,185 INFO L132 encePairwiseOnDemand]: 118/138 looper letters, 374 selfloop transitions, 143 changer transitions 0/535 dead transitions. [2021-03-25 09:34:36,185 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 488 places, 535 transitions, 15789 flow [2021-03-25 09:34:36,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:34:36,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:34:36,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 759 transitions. [2021-03-25 09:34:36,186 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.39285714285714285 [2021-03-25 09:34:36,186 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 759 transitions. [2021-03-25 09:34:36,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 759 transitions. [2021-03-25 09:34:36,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:34:36,186 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 759 transitions. [2021-03-25 09:34:36,187 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 54.214285714285715) internal successors, (759), 14 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:36,188 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 138.0) internal successors, (2070), 15 states have internal predecessors, (2070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:36,188 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 138.0) internal successors, (2070), 15 states have internal predecessors, (2070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:36,188 INFO L185 Difference]: Start difference. First operand has 475 places, 511 transitions, 14035 flow. Second operand 14 states and 759 transitions. [2021-03-25 09:34:36,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 488 places, 535 transitions, 15789 flow [2021-03-25 09:34:36,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 482 places, 535 transitions, 14686 flow, removed 498 selfloop flow, removed 6 redundant places. [2021-03-25 09:34:36,751 INFO L241 Difference]: Finished difference. Result has 488 places, 524 transitions, 13997 flow [2021-03-25 09:34:36,751 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=13264, PETRI_DIFFERENCE_MINUEND_PLACES=469, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=511, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=130, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=13997, PETRI_PLACES=488, PETRI_TRANSITIONS=524} [2021-03-25 09:34:36,751 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 427 predicate places. [2021-03-25 09:34:36,752 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:34:36,752 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 488 places, 524 transitions, 13997 flow [2021-03-25 09:34:36,752 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 488 places, 524 transitions, 13997 flow [2021-03-25 09:34:36,757 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 488 places, 524 transitions, 13997 flow [2021-03-25 09:34:36,983 INFO L129 PetriNetUnfolder]: 474/1197 cut-off events. [2021-03-25 09:34:36,983 INFO L130 PetriNetUnfolder]: For 57305/57343 co-relation queries the response was YES. [2021-03-25 09:34:37,001 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12449 conditions, 1197 events. 474/1197 cut-off events. For 57305/57343 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 8493 event pairs, 10 based on Foata normal form. 5/1026 useless extension candidates. Maximal degree in co-relation 12238. Up to 246 conditions per place. [2021-03-25 09:34:37,019 INFO L142 LiptonReduction]: Number of co-enabled transitions 1950 [2021-03-25 09:34:37,051 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:34:37,051 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:34:37,051 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 299 [2021-03-25 09:34:37,052 INFO L480 AbstractCegarLoop]: Abstraction has has 488 places, 524 transitions, 13997 flow [2021-03-25 09:34:37,052 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:37,052 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:34:37,052 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:34:37,052 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2021-03-25 09:34:37,052 INFO L428 AbstractCegarLoop]: === Iteration 198 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:34:37,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:34:37,052 INFO L82 PathProgramCache]: Analyzing trace with hash -1506946937, now seen corresponding path program 71 times [2021-03-25 09:34:37,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:34:37,052 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285664730] [2021-03-25 09:34:37,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:34:37,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:34:37,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:37,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:34:37,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:37,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:34:37,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:37,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:37,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:37,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:37,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:37,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:37,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:37,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:37,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:37,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:34:37,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:37,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:37,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:37,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:37,147 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:34:37,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:34:37,163 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:34:37,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:37,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:34:37,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285664730] [2021-03-25 09:34:37,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:34:37,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:34:37,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843444405] [2021-03-25 09:34:37,166 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:34:37,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:34:37,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:34:37,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:34:37,166 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 138 [2021-03-25 09:34:37,167 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 488 places, 524 transitions, 13997 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:37,167 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:34:37,167 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 138 [2021-03-25 09:34:37,167 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:34:37,940 INFO L129 PetriNetUnfolder]: 519/1268 cut-off events. [2021-03-25 09:34:37,940 INFO L130 PetriNetUnfolder]: For 57488/57503 co-relation queries the response was YES. [2021-03-25 09:34:37,958 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13655 conditions, 1268 events. 519/1268 cut-off events. For 57488/57503 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 8787 event pairs, 6 based on Foata normal form. 17/1108 useless extension candidates. Maximal degree in co-relation 13426. Up to 582 conditions per place. [2021-03-25 09:34:37,963 INFO L132 encePairwiseOnDemand]: 119/138 looper letters, 306 selfloop transitions, 161 changer transitions 49/534 dead transitions. [2021-03-25 09:34:37,963 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 501 places, 534 transitions, 15211 flow [2021-03-25 09:34:37,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:34:37,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:34:37,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 755 transitions. [2021-03-25 09:34:37,965 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.39078674948240166 [2021-03-25 09:34:37,965 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 755 transitions. [2021-03-25 09:34:37,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 755 transitions. [2021-03-25 09:34:37,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:34:37,965 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 755 transitions. [2021-03-25 09:34:37,965 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 53.92857142857143) internal successors, (755), 14 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:37,966 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 138.0) internal successors, (2070), 15 states have internal predecessors, (2070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:37,966 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 138.0) internal successors, (2070), 15 states have internal predecessors, (2070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:37,966 INFO L185 Difference]: Start difference. First operand has 488 places, 524 transitions, 13997 flow. Second operand 14 states and 755 transitions. [2021-03-25 09:34:37,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 501 places, 534 transitions, 15211 flow [2021-03-25 09:34:38,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 493 places, 534 transitions, 14824 flow, removed 78 selfloop flow, removed 8 redundant places. [2021-03-25 09:34:38,457 INFO L241 Difference]: Finished difference. Result has 496 places, 477 transitions, 12890 flow [2021-03-25 09:34:38,458 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=13610, PETRI_DIFFERENCE_MINUEND_PLACES=480, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=524, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=161, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=363, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=12890, PETRI_PLACES=496, PETRI_TRANSITIONS=477} [2021-03-25 09:34:38,458 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 435 predicate places. [2021-03-25 09:34:38,458 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:34:38,458 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 496 places, 477 transitions, 12890 flow [2021-03-25 09:34:38,458 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 496 places, 477 transitions, 12890 flow [2021-03-25 09:34:38,462 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 475 places, 477 transitions, 12890 flow [2021-03-25 09:34:38,660 INFO L129 PetriNetUnfolder]: 431/1053 cut-off events. [2021-03-25 09:34:38,660 INFO L130 PetriNetUnfolder]: For 59071/59092 co-relation queries the response was YES. [2021-03-25 09:34:38,675 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11879 conditions, 1053 events. 431/1053 cut-off events. For 59071/59092 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 7023 event pairs, 11 based on Foata normal form. 1/914 useless extension candidates. Maximal degree in co-relation 11667. Up to 245 conditions per place. [2021-03-25 09:34:38,690 INFO L142 LiptonReduction]: Number of co-enabled transitions 1776 [2021-03-25 09:34:38,718 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:34:38,719 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:34:38,719 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 261 [2021-03-25 09:34:38,719 INFO L480 AbstractCegarLoop]: Abstraction has has 475 places, 477 transitions, 12890 flow [2021-03-25 09:34:38,719 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:38,719 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:34:38,719 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:34:38,719 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2021-03-25 09:34:38,719 INFO L428 AbstractCegarLoop]: === Iteration 199 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:34:38,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:34:38,719 INFO L82 PathProgramCache]: Analyzing trace with hash 315688979, now seen corresponding path program 72 times [2021-03-25 09:34:38,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:34:38,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336054181] [2021-03-25 09:34:38,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:34:38,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:34:38,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:38,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:34:38,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:38,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:34:38,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:38,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:38,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:38,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:38,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:38,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:38,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:38,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:34:38,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:38,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:38,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:38,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:38,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:38,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:38,806 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:34:38,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:34:38,822 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:34:38,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:38,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:34:38,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336054181] [2021-03-25 09:34:38,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:34:38,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:34:38,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972868431] [2021-03-25 09:34:38,825 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:34:38,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:34:38,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:34:38,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:34:38,826 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 138 [2021-03-25 09:34:38,826 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 475 places, 477 transitions, 12890 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:38,826 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:34:38,826 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 138 [2021-03-25 09:34:38,826 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:34:39,530 INFO L129 PetriNetUnfolder]: 469/1109 cut-off events. [2021-03-25 09:34:39,530 INFO L130 PetriNetUnfolder]: For 56355/56359 co-relation queries the response was YES. [2021-03-25 09:34:39,544 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12868 conditions, 1109 events. 469/1109 cut-off events. For 56355/56359 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 7134 event pairs, 24 based on Foata normal form. 5/975 useless extension candidates. Maximal degree in co-relation 12653. Up to 613 conditions per place. [2021-03-25 09:34:39,548 INFO L132 encePairwiseOnDemand]: 118/138 looper letters, 382 selfloop transitions, 86 changer transitions 0/486 dead transitions. [2021-03-25 09:34:39,548 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 487 places, 486 transitions, 13880 flow [2021-03-25 09:34:39,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:34:39,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:34:39,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 700 transitions. [2021-03-25 09:34:39,549 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.39018952062430323 [2021-03-25 09:34:39,550 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 700 transitions. [2021-03-25 09:34:39,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 700 transitions. [2021-03-25 09:34:39,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:34:39,550 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 700 transitions. [2021-03-25 09:34:39,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 53.84615384615385) internal successors, (700), 13 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:39,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 138.0) internal successors, (1932), 14 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:39,551 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 138.0) internal successors, (1932), 14 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:39,551 INFO L185 Difference]: Start difference. First operand has 475 places, 477 transitions, 12890 flow. Second operand 13 states and 700 transitions. [2021-03-25 09:34:39,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 487 places, 486 transitions, 13880 flow [2021-03-25 09:34:39,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 486 transitions, 12786 flow, removed 114 selfloop flow, removed 44 redundant places. [2021-03-25 09:34:39,999 INFO L241 Difference]: Finished difference. Result has 444 places, 477 transitions, 11978 flow [2021-03-25 09:34:39,999 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=11796, PETRI_DIFFERENCE_MINUEND_PLACES=431, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=477, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=391, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=11978, PETRI_PLACES=444, PETRI_TRANSITIONS=477} [2021-03-25 09:34:40,000 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 383 predicate places. [2021-03-25 09:34:40,000 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:34:40,000 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 444 places, 477 transitions, 11978 flow [2021-03-25 09:34:40,000 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 444 places, 477 transitions, 11978 flow [2021-03-25 09:34:40,004 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 444 places, 477 transitions, 11978 flow [2021-03-25 09:34:40,187 INFO L129 PetriNetUnfolder]: 440/1086 cut-off events. [2021-03-25 09:34:40,188 INFO L130 PetriNetUnfolder]: For 49059/49062 co-relation queries the response was YES. [2021-03-25 09:34:40,202 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11100 conditions, 1086 events. 440/1086 cut-off events. For 49059/49062 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 7352 event pairs, 7 based on Foata normal form. 1/936 useless extension candidates. Maximal degree in co-relation 10889. Up to 241 conditions per place. [2021-03-25 09:34:40,217 INFO L142 LiptonReduction]: Number of co-enabled transitions 1776 [2021-03-25 09:34:40,244 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:34:40,244 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:34:40,244 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 244 [2021-03-25 09:34:40,245 INFO L480 AbstractCegarLoop]: Abstraction has has 444 places, 477 transitions, 11978 flow [2021-03-25 09:34:40,245 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:40,245 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:34:40,245 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:34:40,245 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2021-03-25 09:34:40,245 INFO L428 AbstractCegarLoop]: === Iteration 200 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:34:40,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:34:40,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1434370421, now seen corresponding path program 73 times [2021-03-25 09:34:40,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:34:40,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278359523] [2021-03-25 09:34:40,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:34:40,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:34:40,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:40,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:34:40,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:40,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:34:40,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:40,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:40,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:40,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:40,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:40,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:40,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:40,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:34:40,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:40,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:40,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:40,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:40,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:40,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:40,327 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:34:40,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:34:40,343 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:34:40,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:40,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:34:40,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278359523] [2021-03-25 09:34:40,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:34:40,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:34:40,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604050673] [2021-03-25 09:34:40,346 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:34:40,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:34:40,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:34:40,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:34:40,347 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 138 [2021-03-25 09:34:40,347 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 477 transitions, 11978 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:40,348 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:34:40,348 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 138 [2021-03-25 09:34:40,348 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:34:40,946 INFO L129 PetriNetUnfolder]: 469/1116 cut-off events. [2021-03-25 09:34:40,946 INFO L130 PetriNetUnfolder]: For 47885/47891 co-relation queries the response was YES. [2021-03-25 09:34:40,961 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12190 conditions, 1116 events. 469/1116 cut-off events. For 47885/47891 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 7258 event pairs, 11 based on Foata normal form. 7/983 useless extension candidates. Maximal degree in co-relation 11975. Up to 615 conditions per place. [2021-03-25 09:34:40,966 INFO L132 encePairwiseOnDemand]: 119/138 looper letters, 372 selfloop transitions, 86 changer transitions 11/487 dead transitions. [2021-03-25 09:34:40,966 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 487 transitions, 12996 flow [2021-03-25 09:34:40,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:34:40,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:34:40,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 697 transitions. [2021-03-25 09:34:40,967 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.38851727982162765 [2021-03-25 09:34:40,967 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 697 transitions. [2021-03-25 09:34:40,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 697 transitions. [2021-03-25 09:34:40,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:34:40,967 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 697 transitions. [2021-03-25 09:34:40,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 53.61538461538461) internal successors, (697), 13 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:40,968 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 138.0) internal successors, (1932), 14 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:40,968 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 138.0) internal successors, (1932), 14 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:40,968 INFO L185 Difference]: Start difference. First operand has 444 places, 477 transitions, 11978 flow. Second operand 13 states and 697 transitions. [2021-03-25 09:34:40,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 456 places, 487 transitions, 12996 flow [2021-03-25 09:34:41,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 487 transitions, 12430 flow, removed 144 selfloop flow, removed 17 redundant places. [2021-03-25 09:34:41,360 INFO L241 Difference]: Finished difference. Result has 441 places, 467 transitions, 11406 flow [2021-03-25 09:34:41,361 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=11412, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=477, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=391, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=11406, PETRI_PLACES=441, PETRI_TRANSITIONS=467} [2021-03-25 09:34:41,361 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 380 predicate places. [2021-03-25 09:34:41,361 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:34:41,361 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 441 places, 467 transitions, 11406 flow [2021-03-25 09:34:41,361 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 441 places, 467 transitions, 11406 flow [2021-03-25 09:34:41,365 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 435 places, 467 transitions, 11406 flow [2021-03-25 09:34:41,537 INFO L129 PetriNetUnfolder]: 416/1014 cut-off events. [2021-03-25 09:34:41,537 INFO L130 PetriNetUnfolder]: For 45108/45146 co-relation queries the response was YES. [2021-03-25 09:34:41,551 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10495 conditions, 1014 events. 416/1014 cut-off events. For 45108/45146 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 6747 event pairs, 6 based on Foata normal form. 5/886 useless extension candidates. Maximal degree in co-relation 10311. Up to 239 conditions per place. [2021-03-25 09:34:41,565 INFO L142 LiptonReduction]: Number of co-enabled transitions 1708 [2021-03-25 09:34:41,592 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:34:41,592 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:34:41,592 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 231 [2021-03-25 09:34:41,592 INFO L480 AbstractCegarLoop]: Abstraction has has 435 places, 467 transitions, 11406 flow [2021-03-25 09:34:41,592 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:41,592 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:34:41,592 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:34:41,592 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2021-03-25 09:34:41,593 INFO L428 AbstractCegarLoop]: === Iteration 201 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:34:41,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:34:41,593 INFO L82 PathProgramCache]: Analyzing trace with hash -1099250813, now seen corresponding path program 74 times [2021-03-25 09:34:41,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:34:41,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970719949] [2021-03-25 09:34:41,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:34:41,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:34:41,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:41,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:34:41,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:41,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:34:41,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:41,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:41,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:41,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:41,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:41,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:41,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:41,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:34:41,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:41,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:41,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:41,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:41,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:41,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:41,676 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:34:41,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:34:41,690 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:34:41,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:41,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:34:41,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970719949] [2021-03-25 09:34:41,693 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:34:41,693 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:34:41,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702171000] [2021-03-25 09:34:41,693 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:34:41,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:34:41,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:34:41,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:34:41,694 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 138 [2021-03-25 09:34:41,694 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 467 transitions, 11406 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:41,694 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:34:41,694 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 138 [2021-03-25 09:34:41,694 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:34:42,349 INFO L129 PetriNetUnfolder]: 458/1079 cut-off events. [2021-03-25 09:34:42,349 INFO L130 PetriNetUnfolder]: For 42238/42244 co-relation queries the response was YES. [2021-03-25 09:34:42,363 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11618 conditions, 1079 events. 458/1079 cut-off events. For 42238/42244 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 6932 event pairs, 11 based on Foata normal form. 8/956 useless extension candidates. Maximal degree in co-relation 11432. Up to 525 conditions per place. [2021-03-25 09:34:42,368 INFO L132 encePairwiseOnDemand]: 118/138 looper letters, 290 selfloop transitions, 141 changer transitions 35/484 dead transitions. [2021-03-25 09:34:42,368 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 484 transitions, 12592 flow [2021-03-25 09:34:42,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:34:42,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:34:42,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 665 transitions. [2021-03-25 09:34:42,369 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.40157004830917875 [2021-03-25 09:34:42,369 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 665 transitions. [2021-03-25 09:34:42,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 665 transitions. [2021-03-25 09:34:42,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:34:42,369 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 665 transitions. [2021-03-25 09:34:42,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 55.416666666666664) internal successors, (665), 12 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:42,370 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 138.0) internal successors, (1794), 13 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:42,370 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 138.0) internal successors, (1794), 13 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:42,370 INFO L185 Difference]: Start difference. First operand has 435 places, 467 transitions, 11406 flow. Second operand 12 states and 665 transitions. [2021-03-25 09:34:42,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 484 transitions, 12592 flow [2021-03-25 09:34:42,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 484 transitions, 12368 flow, removed 10 selfloop flow, removed 17 redundant places. [2021-03-25 09:34:42,743 INFO L241 Difference]: Finished difference. Result has 432 places, 436 transitions, 11024 flow [2021-03-25 09:34:42,744 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=11184, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=467, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=137, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=11024, PETRI_PLACES=432, PETRI_TRANSITIONS=436} [2021-03-25 09:34:42,744 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 371 predicate places. [2021-03-25 09:34:42,744 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:34:42,744 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 432 places, 436 transitions, 11024 flow [2021-03-25 09:34:42,744 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 432 places, 436 transitions, 11024 flow [2021-03-25 09:34:42,748 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 419 places, 436 transitions, 11024 flow [2021-03-25 09:34:42,895 INFO L129 PetriNetUnfolder]: 383/889 cut-off events. [2021-03-25 09:34:42,895 INFO L130 PetriNetUnfolder]: For 45279/45300 co-relation queries the response was YES. [2021-03-25 09:34:42,907 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10288 conditions, 889 events. 383/889 cut-off events. For 45279/45300 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 5482 event pairs, 5 based on Foata normal form. 1/789 useless extension candidates. Maximal degree in co-relation 10102. Up to 238 conditions per place. [2021-03-25 09:34:42,919 INFO L142 LiptonReduction]: Number of co-enabled transitions 1488 [2021-03-25 09:34:43,012 INFO L154 LiptonReduction]: Checked pairs total: 7 [2021-03-25 09:34:43,013 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 09:34:43,013 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 269 [2021-03-25 09:34:43,013 INFO L480 AbstractCegarLoop]: Abstraction has has 419 places, 436 transitions, 11101 flow [2021-03-25 09:34:43,013 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:43,013 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:34:43,013 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:34:43,013 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2021-03-25 09:34:43,013 INFO L428 AbstractCegarLoop]: === Iteration 202 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:34:43,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:34:43,013 INFO L82 PathProgramCache]: Analyzing trace with hash 1384247307, now seen corresponding path program 75 times [2021-03-25 09:34:43,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:34:43,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798103584] [2021-03-25 09:34:43,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:34:43,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:34:43,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:43,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:34:43,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:43,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:34:43,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:43,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:43,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:43,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:43,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:43,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:43,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:43,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:34:43,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:43,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:43,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:43,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:43,085 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:34:43,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:34:43,098 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:34:43,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:34:43,112 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:34:43,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:43,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:34:43,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798103584] [2021-03-25 09:34:43,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:34:43,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:34:43,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352919726] [2021-03-25 09:34:43,115 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:34:43,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:34:43,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:34:43,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:34:43,116 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 140 [2021-03-25 09:34:43,116 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 436 transitions, 11101 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:43,116 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:34:43,116 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 140 [2021-03-25 09:34:43,116 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:34:43,694 INFO L129 PetriNetUnfolder]: 430/966 cut-off events. [2021-03-25 09:34:43,694 INFO L130 PetriNetUnfolder]: For 44093/44097 co-relation queries the response was YES. [2021-03-25 09:34:43,707 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11302 conditions, 966 events. 430/966 cut-off events. For 44093/44097 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 5771 event pairs, 16 based on Foata normal form. 5/862 useless extension candidates. Maximal degree in co-relation 11114. Up to 571 conditions per place. [2021-03-25 09:34:43,711 INFO L132 encePairwiseOnDemand]: 121/140 looper letters, 337 selfloop transitions, 65 changer transitions 26/446 dead transitions. [2021-03-25 09:34:43,711 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 446 transitions, 12033 flow [2021-03-25 09:34:43,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:34:43,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:34:43,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 653 transitions. [2021-03-25 09:34:43,712 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3886904761904762 [2021-03-25 09:34:43,712 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 653 transitions. [2021-03-25 09:34:43,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 653 transitions. [2021-03-25 09:34:43,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:34:43,712 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 653 transitions. [2021-03-25 09:34:43,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 54.416666666666664) internal successors, (653), 12 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:43,713 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 140.0) internal successors, (1820), 13 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:43,713 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 140.0) internal successors, (1820), 13 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:43,713 INFO L185 Difference]: Start difference. First operand has 419 places, 436 transitions, 11101 flow. Second operand 12 states and 653 transitions. [2021-03-25 09:34:43,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 446 transitions, 12033 flow [2021-03-25 09:34:44,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 410 places, 446 transitions, 11327 flow, removed 127 selfloop flow, removed 20 redundant places. [2021-03-25 09:34:44,099 INFO L241 Difference]: Finished difference. Result has 412 places, 411 transitions, 9649 flow [2021-03-25 09:34:44,099 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=10397, PETRI_DIFFERENCE_MINUEND_PLACES=399, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=9649, PETRI_PLACES=412, PETRI_TRANSITIONS=411} [2021-03-25 09:34:44,099 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 351 predicate places. [2021-03-25 09:34:44,099 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:34:44,099 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 412 places, 411 transitions, 9649 flow [2021-03-25 09:34:44,099 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 412 places, 411 transitions, 9649 flow [2021-03-25 09:34:44,102 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 407 places, 411 transitions, 9649 flow [2021-03-25 09:34:44,237 INFO L129 PetriNetUnfolder]: 372/857 cut-off events. [2021-03-25 09:34:44,237 INFO L130 PetriNetUnfolder]: For 39819/39823 co-relation queries the response was YES. [2021-03-25 09:34:44,248 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9280 conditions, 857 events. 372/857 cut-off events. For 39819/39823 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 5183 event pairs, 9 based on Foata normal form. 2/759 useless extension candidates. Maximal degree in co-relation 9086. Up to 226 conditions per place. [2021-03-25 09:34:44,259 INFO L142 LiptonReduction]: Number of co-enabled transitions 1476 [2021-03-25 09:34:44,279 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:34:44,279 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:34:44,280 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 181 [2021-03-25 09:34:44,280 INFO L480 AbstractCegarLoop]: Abstraction has has 407 places, 411 transitions, 9649 flow [2021-03-25 09:34:44,280 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:44,280 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:34:44,280 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:34:44,280 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2021-03-25 09:34:44,280 INFO L428 AbstractCegarLoop]: === Iteration 203 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:34:44,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:34:44,280 INFO L82 PathProgramCache]: Analyzing trace with hash -1505926645, now seen corresponding path program 1 times [2021-03-25 09:34:44,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:34:44,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132863617] [2021-03-25 09:34:44,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:34:44,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:34:44,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:44,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:34:44,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:44,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:34:44,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:44,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:44,304 INFO L142 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size [2021-03-25 09:34:44,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:44,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:44,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:44,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:44,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:44,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:44,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:44,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:44,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:44,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:44,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:44,377 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:34:44,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:34:44,393 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:34:44,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:44,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:34:44,395 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132863617] [2021-03-25 09:34:44,395 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:34:44,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:34:44,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308683186] [2021-03-25 09:34:44,396 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:34:44,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:34:44,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:34:44,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:34:44,396 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 140 [2021-03-25 09:34:44,397 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 411 transitions, 9649 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:44,397 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:34:44,397 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 140 [2021-03-25 09:34:44,397 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:34:44,951 INFO L129 PetriNetUnfolder]: 435/972 cut-off events. [2021-03-25 09:34:44,951 INFO L130 PetriNetUnfolder]: For 45300/45313 co-relation queries the response was YES. [2021-03-25 09:34:44,963 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10930 conditions, 972 events. 435/972 cut-off events. For 45300/45313 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 5804 event pairs, 20 based on Foata normal form. 14/875 useless extension candidates. Maximal degree in co-relation 10732. Up to 612 conditions per place. [2021-03-25 09:34:44,968 INFO L132 encePairwiseOnDemand]: 125/140 looper letters, 385 selfloop transitions, 37 changer transitions 0/440 dead transitions. [2021-03-25 09:34:44,968 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 440 transitions, 11387 flow [2021-03-25 09:34:44,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 09:34:44,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 09:34:44,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 834 transitions. [2021-03-25 09:34:44,969 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3723214285714286 [2021-03-25 09:34:44,969 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 834 transitions. [2021-03-25 09:34:44,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 834 transitions. [2021-03-25 09:34:44,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:34:44,969 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 834 transitions. [2021-03-25 09:34:44,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 52.125) internal successors, (834), 16 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:44,970 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 140.0) internal successors, (2380), 17 states have internal predecessors, (2380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:44,970 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 140.0) internal successors, (2380), 17 states have internal predecessors, (2380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:44,970 INFO L185 Difference]: Start difference. First operand has 407 places, 411 transitions, 9649 flow. Second operand 16 states and 834 transitions. [2021-03-25 09:34:44,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 440 transitions, 11387 flow [2021-03-25 09:34:45,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 440 transitions, 10805 flow, removed 83 selfloop flow, removed 35 redundant places. [2021-03-25 09:34:45,287 INFO L241 Difference]: Finished difference. Result has 395 places, 429 transitions, 9877 flow [2021-03-25 09:34:45,287 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=9108, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=9877, PETRI_PLACES=395, PETRI_TRANSITIONS=429} [2021-03-25 09:34:45,287 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 334 predicate places. [2021-03-25 09:34:45,287 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:34:45,287 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 395 places, 429 transitions, 9877 flow [2021-03-25 09:34:45,287 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 395 places, 429 transitions, 9877 flow [2021-03-25 09:34:45,291 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 395 places, 429 transitions, 9877 flow [2021-03-25 09:34:45,446 INFO L129 PetriNetUnfolder]: 402/933 cut-off events. [2021-03-25 09:34:45,446 INFO L130 PetriNetUnfolder]: For 42513/42516 co-relation queries the response was YES. [2021-03-25 09:34:45,459 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9786 conditions, 933 events. 402/933 cut-off events. For 42513/42516 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 5799 event pairs, 9 based on Foata normal form. 1/819 useless extension candidates. Maximal degree in co-relation 9591. Up to 235 conditions per place. [2021-03-25 09:34:45,472 INFO L142 LiptonReduction]: Number of co-enabled transitions 1576 [2021-03-25 09:34:45,588 INFO L154 LiptonReduction]: Checked pairs total: 11 [2021-03-25 09:34:45,588 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 09:34:45,588 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 301 [2021-03-25 09:34:45,588 INFO L480 AbstractCegarLoop]: Abstraction has has 395 places, 429 transitions, 9949 flow [2021-03-25 09:34:45,588 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:45,588 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:34:45,588 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:34:45,588 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2021-03-25 09:34:45,588 INFO L428 AbstractCegarLoop]: === Iteration 204 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:34:45,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:34:45,589 INFO L82 PathProgramCache]: Analyzing trace with hash 602744783, now seen corresponding path program 2 times [2021-03-25 09:34:45,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:34:45,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267322877] [2021-03-25 09:34:45,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:34:45,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:34:45,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:45,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:34:45,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:45,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:34:45,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:45,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:45,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:45,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:45,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:45,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:45,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:45,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:45,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:45,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:45,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:45,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:45,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:45,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:45,686 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:34:45,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:34:45,702 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:34:45,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:45,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:34:45,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267322877] [2021-03-25 09:34:45,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:34:45,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:34:45,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574239259] [2021-03-25 09:34:45,705 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:34:45,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:34:45,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:34:45,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:34:45,706 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 143 [2021-03-25 09:34:45,706 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 429 transitions, 9949 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:45,706 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:34:45,706 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 143 [2021-03-25 09:34:45,706 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:34:46,341 INFO L129 PetriNetUnfolder]: 454/1023 cut-off events. [2021-03-25 09:34:46,342 INFO L130 PetriNetUnfolder]: For 48985/49000 co-relation queries the response was YES. [2021-03-25 09:34:46,354 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11525 conditions, 1023 events. 454/1023 cut-off events. For 48985/49000 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 6187 event pairs, 5 based on Foata normal form. 16/922 useless extension candidates. Maximal degree in co-relation 11326. Up to 636 conditions per place. [2021-03-25 09:34:46,359 INFO L132 encePairwiseOnDemand]: 127/143 looper letters, 398 selfloop transitions, 47 changer transitions 0/463 dead transitions. [2021-03-25 09:34:46,359 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 463 transitions, 11884 flow [2021-03-25 09:34:46,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-25 09:34:46,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-25 09:34:46,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 887 transitions. [2021-03-25 09:34:46,361 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3648704236939531 [2021-03-25 09:34:46,361 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 887 transitions. [2021-03-25 09:34:46,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 887 transitions. [2021-03-25 09:34:46,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:34:46,361 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 887 transitions. [2021-03-25 09:34:46,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 52.1764705882353) internal successors, (887), 17 states have internal predecessors, (887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:46,362 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 143.0) internal successors, (2574), 18 states have internal predecessors, (2574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:46,362 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 143.0) internal successors, (2574), 18 states have internal predecessors, (2574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:46,362 INFO L185 Difference]: Start difference. First operand has 395 places, 429 transitions, 9949 flow. Second operand 17 states and 887 transitions. [2021-03-25 09:34:46,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 463 transitions, 11884 flow [2021-03-25 09:34:46,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 463 transitions, 11209 flow, removed 322 selfloop flow, removed 4 redundant places. [2021-03-25 09:34:46,763 INFO L241 Difference]: Finished difference. Result has 412 places, 453 transitions, 10264 flow [2021-03-25 09:34:46,763 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=9346, PETRI_DIFFERENCE_MINUEND_PLACES=391, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=429, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=397, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=10264, PETRI_PLACES=412, PETRI_TRANSITIONS=453} [2021-03-25 09:34:46,763 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 351 predicate places. [2021-03-25 09:34:46,763 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:34:46,763 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 412 places, 453 transitions, 10264 flow [2021-03-25 09:34:46,763 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 412 places, 453 transitions, 10264 flow [2021-03-25 09:34:46,767 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 412 places, 453 transitions, 10264 flow [2021-03-25 09:34:46,946 INFO L129 PetriNetUnfolder]: 422/988 cut-off events. [2021-03-25 09:34:46,947 INFO L130 PetriNetUnfolder]: For 44601/44604 co-relation queries the response was YES. [2021-03-25 09:34:46,960 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10232 conditions, 988 events. 422/988 cut-off events. For 44601/44604 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 6270 event pairs, 8 based on Foata normal form. 1/866 useless extension candidates. Maximal degree in co-relation 10031. Up to 246 conditions per place. [2021-03-25 09:34:46,973 INFO L142 LiptonReduction]: Number of co-enabled transitions 1706 [2021-03-25 09:34:47,066 INFO L154 LiptonReduction]: Checked pairs total: 5 [2021-03-25 09:34:47,066 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 09:34:47,066 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 303 [2021-03-25 09:34:47,066 INFO L480 AbstractCegarLoop]: Abstraction has has 412 places, 453 transitions, 10329 flow [2021-03-25 09:34:47,067 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:47,067 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:34:47,067 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:34:47,067 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2021-03-25 09:34:47,067 INFO L428 AbstractCegarLoop]: === Iteration 205 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:34:47,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:34:47,067 INFO L82 PathProgramCache]: Analyzing trace with hash -1612827730, now seen corresponding path program 1 times [2021-03-25 09:34:47,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:34:47,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127372093] [2021-03-25 09:34:47,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:34:47,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:34:47,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:47,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:34:47,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:47,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:34:47,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:47,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:47,092 INFO L142 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size [2021-03-25 09:34:47,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:47,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:47,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:47,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:47,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:47,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:47,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:47,158 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:34:47,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:34:47,171 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:34:47,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:34:47,186 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:34:47,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:47,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:34:47,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127372093] [2021-03-25 09:34:47,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:34:47,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:34:47,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647801225] [2021-03-25 09:34:47,189 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:34:47,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:34:47,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:34:47,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:34:47,190 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 145 [2021-03-25 09:34:47,190 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 453 transitions, 10329 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:47,190 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:34:47,190 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 145 [2021-03-25 09:34:47,190 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:34:47,741 INFO L129 PetriNetUnfolder]: 459/1042 cut-off events. [2021-03-25 09:34:47,741 INFO L130 PetriNetUnfolder]: For 48018/48024 co-relation queries the response was YES. [2021-03-25 09:34:47,754 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11419 conditions, 1042 events. 459/1042 cut-off events. For 48018/48024 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 6421 event pairs, 11 based on Foata normal form. 7/926 useless extension candidates. Maximal degree in co-relation 11214. Up to 647 conditions per place. [2021-03-25 09:34:47,758 INFO L132 encePairwiseOnDemand]: 127/145 looper letters, 408 selfloop transitions, 40 changer transitions 0/466 dead transitions. [2021-03-25 09:34:47,759 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 466 transitions, 11587 flow [2021-03-25 09:34:47,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:34:47,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:34:47,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 691 transitions. [2021-03-25 09:34:47,760 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.36657824933687 [2021-03-25 09:34:47,760 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 691 transitions. [2021-03-25 09:34:47,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 691 transitions. [2021-03-25 09:34:47,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:34:47,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 691 transitions. [2021-03-25 09:34:47,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 53.15384615384615) internal successors, (691), 13 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:47,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 145.0) internal successors, (2030), 14 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:47,761 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 145.0) internal successors, (2030), 14 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:47,761 INFO L185 Difference]: Start difference. First operand has 412 places, 453 transitions, 10329 flow. Second operand 13 states and 691 transitions. [2021-03-25 09:34:47,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 466 transitions, 11587 flow [2021-03-25 09:34:48,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 466 transitions, 10797 flow, removed 375 selfloop flow, removed 4 redundant places. [2021-03-25 09:34:48,157 INFO L241 Difference]: Finished difference. Result has 423 places, 456 transitions, 9810 flow [2021-03-25 09:34:48,157 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=9553, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=453, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=9810, PETRI_PLACES=423, PETRI_TRANSITIONS=456} [2021-03-25 09:34:48,157 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 362 predicate places. [2021-03-25 09:34:48,157 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:34:48,157 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 423 places, 456 transitions, 9810 flow [2021-03-25 09:34:48,157 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 423 places, 456 transitions, 9810 flow [2021-03-25 09:34:48,161 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 423 places, 456 transitions, 9810 flow [2021-03-25 09:34:48,362 INFO L129 PetriNetUnfolder]: 431/1017 cut-off events. [2021-03-25 09:34:48,362 INFO L130 PetriNetUnfolder]: For 43083/43086 co-relation queries the response was YES. [2021-03-25 09:34:48,380 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9978 conditions, 1017 events. 431/1017 cut-off events. For 43083/43086 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 6585 event pairs, 13 based on Foata normal form. 1/885 useless extension candidates. Maximal degree in co-relation 9773. Up to 235 conditions per place. [2021-03-25 09:34:48,397 INFO L142 LiptonReduction]: Number of co-enabled transitions 1726 [2021-03-25 09:34:48,494 INFO L154 LiptonReduction]: Checked pairs total: 5 [2021-03-25 09:34:48,495 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:34:48,495 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 338 [2021-03-25 09:34:48,495 INFO L480 AbstractCegarLoop]: Abstraction has has 422 places, 455 transitions, 9800 flow [2021-03-25 09:34:48,495 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:48,495 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:34:48,495 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:34:48,495 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2021-03-25 09:34:48,495 INFO L428 AbstractCegarLoop]: === Iteration 206 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:34:48,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:34:48,496 INFO L82 PathProgramCache]: Analyzing trace with hash 1943961180, now seen corresponding path program 1 times [2021-03-25 09:34:48,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:34:48,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174572143] [2021-03-25 09:34:48,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:34:48,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:34:48,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:48,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:34:48,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:48,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:34:48,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:48,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:48,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:48,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:48,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:48,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:48,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:48,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:48,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:48,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:48,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:48,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:48,596 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:34:48,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:34:48,613 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:34:48,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:48,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:34:48,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174572143] [2021-03-25 09:34:48,616 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:34:48,616 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:34:48,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762742685] [2021-03-25 09:34:48,616 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:34:48,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:34:48,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:34:48,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:34:48,617 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 146 [2021-03-25 09:34:48,617 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 455 transitions, 9800 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:48,618 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:34:48,618 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 146 [2021-03-25 09:34:48,618 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:34:49,147 INFO L129 PetriNetUnfolder]: 462/1051 cut-off events. [2021-03-25 09:34:49,148 INFO L130 PetriNetUnfolder]: For 43784/43788 co-relation queries the response was YES. [2021-03-25 09:34:49,161 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11023 conditions, 1051 events. 462/1051 cut-off events. For 43784/43788 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 6501 event pairs, 24 based on Foata normal form. 5/929 useless extension candidates. Maximal degree in co-relation 10814. Up to 639 conditions per place. [2021-03-25 09:34:49,166 INFO L132 encePairwiseOnDemand]: 130/146 looper letters, 401 selfloop transitions, 45 changer transitions 0/464 dead transitions. [2021-03-25 09:34:49,166 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 464 transitions, 10870 flow [2021-03-25 09:34:49,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:34:49,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:34:49,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 741 transitions. [2021-03-25 09:34:49,167 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.36252446183953035 [2021-03-25 09:34:49,167 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 741 transitions. [2021-03-25 09:34:49,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 741 transitions. [2021-03-25 09:34:49,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:34:49,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 741 transitions. [2021-03-25 09:34:49,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 52.92857142857143) internal successors, (741), 14 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:49,168 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 146.0) internal successors, (2190), 15 states have internal predecessors, (2190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:49,169 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 146.0) internal successors, (2190), 15 states have internal predecessors, (2190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:49,169 INFO L185 Difference]: Start difference. First operand has 422 places, 455 transitions, 9800 flow. Second operand 14 states and 741 transitions. [2021-03-25 09:34:49,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 464 transitions, 10870 flow [2021-03-25 09:34:49,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 464 transitions, 10696 flow, removed 54 selfloop flow, removed 10 redundant places. [2021-03-25 09:34:49,511 INFO L241 Difference]: Finished difference. Result has 426 places, 455 transitions, 9728 flow [2021-03-25 09:34:49,512 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=9628, PETRI_DIFFERENCE_MINUEND_PLACES=412, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=455, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=9728, PETRI_PLACES=426, PETRI_TRANSITIONS=455} [2021-03-25 09:34:49,512 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 365 predicate places. [2021-03-25 09:34:49,512 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:34:49,512 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 426 places, 455 transitions, 9728 flow [2021-03-25 09:34:49,512 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 426 places, 455 transitions, 9728 flow [2021-03-25 09:34:49,515 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 426 places, 455 transitions, 9728 flow [2021-03-25 09:34:49,691 INFO L129 PetriNetUnfolder]: 422/994 cut-off events. [2021-03-25 09:34:49,692 INFO L130 PetriNetUnfolder]: For 42138/42141 co-relation queries the response was YES. [2021-03-25 09:34:49,707 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9878 conditions, 994 events. 422/994 cut-off events. For 42138/42141 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 6392 event pairs, 13 based on Foata normal form. 1/870 useless extension candidates. Maximal degree in co-relation 9673. Up to 231 conditions per place. [2021-03-25 09:34:49,722 INFO L142 LiptonReduction]: Number of co-enabled transitions 1716 [2021-03-25 09:34:49,747 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:34:49,747 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:34:49,748 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 236 [2021-03-25 09:34:49,748 INFO L480 AbstractCegarLoop]: Abstraction has has 426 places, 455 transitions, 9728 flow [2021-03-25 09:34:49,748 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:49,748 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:34:49,748 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:34:49,748 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2021-03-25 09:34:49,748 INFO L428 AbstractCegarLoop]: === Iteration 207 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:34:49,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:34:49,748 INFO L82 PathProgramCache]: Analyzing trace with hash 744517497, now seen corresponding path program 1 times [2021-03-25 09:34:49,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:34:49,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958325511] [2021-03-25 09:34:49,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:34:49,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:34:49,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:49,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:34:49,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:49,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:34:49,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:49,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:49,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:49,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:49,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:49,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:49,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:49,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:49,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:49,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:49,860 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:34:49,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:34:49,885 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:34:49,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:34:49,898 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:34:49,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:49,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:34:49,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958325511] [2021-03-25 09:34:49,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:34:49,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:34:49,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493340350] [2021-03-25 09:34:49,900 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:34:49,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:34:49,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:34:49,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:34:49,901 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 146 [2021-03-25 09:34:49,901 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 455 transitions, 9728 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:49,901 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:34:49,901 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 146 [2021-03-25 09:34:49,901 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:34:50,477 INFO L129 PetriNetUnfolder]: 475/1081 cut-off events. [2021-03-25 09:34:50,477 INFO L130 PetriNetUnfolder]: For 46971/46984 co-relation queries the response was YES. [2021-03-25 09:34:50,492 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11574 conditions, 1081 events. 475/1081 cut-off events. For 46971/46984 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 6733 event pairs, 18 based on Foata normal form. 14/964 useless extension candidates. Maximal degree in co-relation 11365. Up to 618 conditions per place. [2021-03-25 09:34:50,497 INFO L132 encePairwiseOnDemand]: 129/146 looper letters, 398 selfloop transitions, 70 changer transitions 0/486 dead transitions. [2021-03-25 09:34:50,497 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 486 transitions, 11736 flow [2021-03-25 09:34:50,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:34:50,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:34:50,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 654 transitions. [2021-03-25 09:34:50,498 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3732876712328767 [2021-03-25 09:34:50,498 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 654 transitions. [2021-03-25 09:34:50,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 654 transitions. [2021-03-25 09:34:50,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:34:50,498 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 654 transitions. [2021-03-25 09:34:50,499 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 54.5) internal successors, (654), 12 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:50,500 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 146.0) internal successors, (1898), 13 states have internal predecessors, (1898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:50,500 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 146.0) internal successors, (1898), 13 states have internal predecessors, (1898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:50,500 INFO L185 Difference]: Start difference. First operand has 426 places, 455 transitions, 9728 flow. Second operand 12 states and 654 transitions. [2021-03-25 09:34:50,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 486 transitions, 11736 flow [2021-03-25 09:34:50,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 486 transitions, 11647 flow, removed 0 selfloop flow, removed 12 redundant places. [2021-03-25 09:34:50,903 INFO L241 Difference]: Finished difference. Result has 429 places, 473 transitions, 10658 flow [2021-03-25 09:34:50,903 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=9641, PETRI_DIFFERENCE_MINUEND_PLACES=414, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=455, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=10658, PETRI_PLACES=429, PETRI_TRANSITIONS=473} [2021-03-25 09:34:50,904 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 368 predicate places. [2021-03-25 09:34:50,904 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:34:50,904 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 429 places, 473 transitions, 10658 flow [2021-03-25 09:34:50,904 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 429 places, 473 transitions, 10658 flow [2021-03-25 09:34:50,908 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 429 places, 473 transitions, 10658 flow [2021-03-25 09:34:51,145 INFO L129 PetriNetUnfolder]: 436/1029 cut-off events. [2021-03-25 09:34:51,145 INFO L130 PetriNetUnfolder]: For 48738/48741 co-relation queries the response was YES. [2021-03-25 09:34:51,155 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10675 conditions, 1029 events. 436/1029 cut-off events. For 48738/48741 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 6702 event pairs, 9 based on Foata normal form. 1/900 useless extension candidates. Maximal degree in co-relation 10466. Up to 247 conditions per place. [2021-03-25 09:34:51,167 INFO L142 LiptonReduction]: Number of co-enabled transitions 1798 [2021-03-25 09:34:51,241 INFO L154 LiptonReduction]: Checked pairs total: 5 [2021-03-25 09:34:51,241 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:34:51,242 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 338 [2021-03-25 09:34:51,242 INFO L480 AbstractCegarLoop]: Abstraction has has 428 places, 472 transitions, 10648 flow [2021-03-25 09:34:51,242 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:51,242 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:34:51,242 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:34:51,242 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2021-03-25 09:34:51,242 INFO L428 AbstractCegarLoop]: === Iteration 208 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:34:51,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:34:51,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1691629717, now seen corresponding path program 2 times [2021-03-25 09:34:51,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:34:51,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753047752] [2021-03-25 09:34:51,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:34:51,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:34:51,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:51,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:34:51,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:51,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:34:51,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:51,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:51,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:51,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:51,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:51,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:51,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:51,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:51,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:51,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:51,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:51,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:51,326 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:34:51,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:34:51,338 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:34:51,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:51,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:34:51,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753047752] [2021-03-25 09:34:51,340 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:34:51,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:34:51,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913287306] [2021-03-25 09:34:51,341 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:34:51,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:34:51,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:34:51,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:34:51,341 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 147 [2021-03-25 09:34:51,341 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 472 transitions, 10648 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:51,341 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:34:51,341 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 147 [2021-03-25 09:34:51,342 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:34:52,008 INFO L129 PetriNetUnfolder]: 498/1127 cut-off events. [2021-03-25 09:34:52,008 INFO L130 PetriNetUnfolder]: For 60313/60319 co-relation queries the response was YES. [2021-03-25 09:34:52,023 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12846 conditions, 1127 events. 498/1127 cut-off events. For 60313/60319 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 7105 event pairs, 2 based on Foata normal form. 7/1002 useless extension candidates. Maximal degree in co-relation 12633. Up to 658 conditions per place. [2021-03-25 09:34:52,029 INFO L132 encePairwiseOnDemand]: 130/147 looper letters, 373 selfloop transitions, 108 changer transitions 5/504 dead transitions. [2021-03-25 09:34:52,029 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 439 places, 504 transitions, 13065 flow [2021-03-25 09:34:52,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:34:52,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:34:52,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 657 transitions. [2021-03-25 09:34:52,030 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.37244897959183676 [2021-03-25 09:34:52,030 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 657 transitions. [2021-03-25 09:34:52,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 657 transitions. [2021-03-25 09:34:52,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:34:52,030 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 657 transitions. [2021-03-25 09:34:52,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 54.75) internal successors, (657), 12 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:52,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 147.0) internal successors, (1911), 13 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:52,031 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 147.0) internal successors, (1911), 13 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:52,031 INFO L185 Difference]: Start difference. First operand has 428 places, 472 transitions, 10648 flow. Second operand 12 states and 657 transitions. [2021-03-25 09:34:52,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 439 places, 504 transitions, 13065 flow [2021-03-25 09:34:52,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 504 transitions, 12433 flow, removed 305 selfloop flow, removed 3 redundant places. [2021-03-25 09:34:52,525 INFO L241 Difference]: Finished difference. Result has 439 places, 491 transitions, 11374 flow [2021-03-25 09:34:52,525 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=10104, PETRI_DIFFERENCE_MINUEND_PLACES=425, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=472, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=377, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=11374, PETRI_PLACES=439, PETRI_TRANSITIONS=491} [2021-03-25 09:34:52,525 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 378 predicate places. [2021-03-25 09:34:52,525 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:34:52,525 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 439 places, 491 transitions, 11374 flow [2021-03-25 09:34:52,525 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 439 places, 491 transitions, 11374 flow [2021-03-25 09:34:52,529 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 438 places, 491 transitions, 11374 flow [2021-03-25 09:34:52,710 INFO L129 PetriNetUnfolder]: 456/1064 cut-off events. [2021-03-25 09:34:52,711 INFO L130 PetriNetUnfolder]: For 54858/54868 co-relation queries the response was YES. [2021-03-25 09:34:52,725 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11426 conditions, 1064 events. 456/1064 cut-off events. For 54858/54868 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 6953 event pairs, 9 based on Foata normal form. 2/934 useless extension candidates. Maximal degree in co-relation 11213. Up to 262 conditions per place. [2021-03-25 09:34:52,739 INFO L142 LiptonReduction]: Number of co-enabled transitions 1802 [2021-03-25 09:34:52,767 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:34:52,767 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:34:52,767 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 242 [2021-03-25 09:34:52,767 INFO L480 AbstractCegarLoop]: Abstraction has has 438 places, 491 transitions, 11374 flow [2021-03-25 09:34:52,767 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:52,767 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:34:52,767 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:34:52,767 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2021-03-25 09:34:52,767 INFO L428 AbstractCegarLoop]: === Iteration 209 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:34:52,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:34:52,768 INFO L82 PathProgramCache]: Analyzing trace with hash -525306971, now seen corresponding path program 3 times [2021-03-25 09:34:52,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:34:52,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215469086] [2021-03-25 09:34:52,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:34:52,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:34:52,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:52,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:34:52,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:52,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:34:52,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:52,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:52,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:52,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:52,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:52,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:52,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:52,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:52,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:52,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:52,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:52,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:52,851 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:34:52,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:34:52,858 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:34:52,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:52,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:34:52,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215469086] [2021-03-25 09:34:52,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:34:52,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:34:52,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379678024] [2021-03-25 09:34:52,861 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:34:52,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:34:52,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:34:52,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:34:52,862 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 147 [2021-03-25 09:34:52,862 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 491 transitions, 11374 flow. Second operand has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:52,862 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:34:52,862 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 147 [2021-03-25 09:34:52,862 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:34:53,434 INFO L129 PetriNetUnfolder]: 495/1120 cut-off events. [2021-03-25 09:34:53,434 INFO L130 PetriNetUnfolder]: For 57578/57584 co-relation queries the response was YES. [2021-03-25 09:34:53,449 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12635 conditions, 1120 events. 495/1120 cut-off events. For 57578/57584 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 7032 event pairs, 3 based on Foata normal form. 7/996 useless extension candidates. Maximal degree in co-relation 12418. Up to 690 conditions per place. [2021-03-25 09:34:53,454 INFO L132 encePairwiseOnDemand]: 131/147 looper letters, 436 selfloop transitions, 51 changer transitions 0/505 dead transitions. [2021-03-25 09:34:53,454 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 448 places, 505 transitions, 12739 flow [2021-03-25 09:34:53,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:34:53,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:34:53,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 598 transitions. [2021-03-25 09:34:53,456 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.36982065553494126 [2021-03-25 09:34:53,456 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 598 transitions. [2021-03-25 09:34:53,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 598 transitions. [2021-03-25 09:34:53,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:34:53,456 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 598 transitions. [2021-03-25 09:34:53,456 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 54.36363636363637) internal successors, (598), 11 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:53,457 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 147.0) internal successors, (1764), 12 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:53,457 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 147.0) internal successors, (1764), 12 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:53,457 INFO L185 Difference]: Start difference. First operand has 438 places, 491 transitions, 11374 flow. Second operand 11 states and 598 transitions. [2021-03-25 09:34:53,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 448 places, 505 transitions, 12739 flow [2021-03-25 09:34:53,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 442 places, 505 transitions, 11931 flow, removed 357 selfloop flow, removed 6 redundant places. [2021-03-25 09:34:53,960 INFO L241 Difference]: Finished difference. Result has 445 places, 496 transitions, 10969 flow [2021-03-25 09:34:53,961 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=10634, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=491, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=443, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=10969, PETRI_PLACES=445, PETRI_TRANSITIONS=496} [2021-03-25 09:34:53,961 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 384 predicate places. [2021-03-25 09:34:53,961 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:34:53,961 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 445 places, 496 transitions, 10969 flow [2021-03-25 09:34:53,961 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 445 places, 496 transitions, 10969 flow [2021-03-25 09:34:53,965 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 445 places, 496 transitions, 10969 flow [2021-03-25 09:34:54,155 INFO L129 PetriNetUnfolder]: 460/1080 cut-off events. [2021-03-25 09:34:54,155 INFO L130 PetriNetUnfolder]: For 50916/50925 co-relation queries the response was YES. [2021-03-25 09:34:54,171 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11057 conditions, 1080 events. 460/1080 cut-off events. For 50916/50925 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 7089 event pairs, 12 based on Foata normal form. 1/944 useless extension candidates. Maximal degree in co-relation 10843. Up to 245 conditions per place. [2021-03-25 09:34:54,187 INFO L142 LiptonReduction]: Number of co-enabled transitions 1856 [2021-03-25 09:34:54,272 INFO L154 LiptonReduction]: Checked pairs total: 5 [2021-03-25 09:34:54,272 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:34:54,272 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 311 [2021-03-25 09:34:54,272 INFO L480 AbstractCegarLoop]: Abstraction has has 445 places, 496 transitions, 11034 flow [2021-03-25 09:34:54,272 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:54,273 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:34:54,273 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:34:54,273 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2021-03-25 09:34:54,273 INFO L428 AbstractCegarLoop]: === Iteration 210 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:34:54,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:34:54,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1512305119, now seen corresponding path program 4 times [2021-03-25 09:34:54,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:34:54,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148106912] [2021-03-25 09:34:54,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:34:54,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:34:54,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:54,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:34:54,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:54,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:34:54,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:54,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:54,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:54,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:54,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:54,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:54,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:54,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:54,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:54,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:54,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:54,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:54,356 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:34:54,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:34:54,363 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:34:54,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:54,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:34:54,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148106912] [2021-03-25 09:34:54,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:34:54,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:34:54,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295134640] [2021-03-25 09:34:54,366 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:34:54,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:34:54,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:34:54,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:34:54,367 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 148 [2021-03-25 09:34:54,367 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 496 transitions, 11034 flow. Second operand has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:54,367 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:34:54,367 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 148 [2021-03-25 09:34:54,367 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:34:55,007 INFO L129 PetriNetUnfolder]: 504/1148 cut-off events. [2021-03-25 09:34:55,007 INFO L130 PetriNetUnfolder]: For 54662/54668 co-relation queries the response was YES. [2021-03-25 09:34:55,019 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12335 conditions, 1148 events. 504/1148 cut-off events. For 54662/54668 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 7361 event pairs, 4 based on Foata normal form. 7/1014 useless extension candidates. Maximal degree in co-relation 12117. Up to 708 conditions per place. [2021-03-25 09:34:55,025 INFO L132 encePairwiseOnDemand]: 132/148 looper letters, 445 selfloop transitions, 41 changer transitions 1/505 dead transitions. [2021-03-25 09:34:55,025 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 505 transitions, 12214 flow [2021-03-25 09:34:55,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:34:55,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:34:55,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 593 transitions. [2021-03-25 09:34:55,026 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3642506142506142 [2021-03-25 09:34:55,026 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 593 transitions. [2021-03-25 09:34:55,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 593 transitions. [2021-03-25 09:34:55,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:34:55,026 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 593 transitions. [2021-03-25 09:34:55,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 53.90909090909091) internal successors, (593), 11 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:55,028 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 148.0) internal successors, (1776), 12 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:55,028 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 148.0) internal successors, (1776), 12 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:55,028 INFO L185 Difference]: Start difference. First operand has 445 places, 496 transitions, 11034 flow. Second operand 11 states and 593 transitions. [2021-03-25 09:34:55,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 505 transitions, 12214 flow [2021-03-25 09:34:55,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 448 places, 505 transitions, 11883 flow, removed 129 selfloop flow, removed 7 redundant places. [2021-03-25 09:34:55,471 INFO L241 Difference]: Finished difference. Result has 452 places, 498 transitions, 10878 flow [2021-03-25 09:34:55,471 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=10714, PETRI_DIFFERENCE_MINUEND_PLACES=438, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=496, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=10878, PETRI_PLACES=452, PETRI_TRANSITIONS=498} [2021-03-25 09:34:55,471 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 391 predicate places. [2021-03-25 09:34:55,471 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:34:55,471 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 452 places, 498 transitions, 10878 flow [2021-03-25 09:34:55,471 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 452 places, 498 transitions, 10878 flow [2021-03-25 09:34:55,475 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 451 places, 498 transitions, 10878 flow [2021-03-25 09:34:55,671 INFO L129 PetriNetUnfolder]: 463/1083 cut-off events. [2021-03-25 09:34:55,672 INFO L130 PetriNetUnfolder]: For 52001/52026 co-relation queries the response was YES. [2021-03-25 09:34:55,687 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11115 conditions, 1083 events. 463/1083 cut-off events. For 52001/52026 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 7093 event pairs, 10 based on Foata normal form. 1/946 useless extension candidates. Maximal degree in co-relation 10897. Up to 244 conditions per place. [2021-03-25 09:34:55,703 INFO L142 LiptonReduction]: Number of co-enabled transitions 1870 [2021-03-25 09:34:55,791 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:34:55,791 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:34:55,791 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 320 [2021-03-25 09:34:55,791 INFO L480 AbstractCegarLoop]: Abstraction has has 451 places, 498 transitions, 10884 flow [2021-03-25 09:34:55,792 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:55,792 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:34:55,792 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:34:55,792 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2021-03-25 09:34:55,792 INFO L428 AbstractCegarLoop]: === Iteration 211 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:34:55,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:34:55,792 INFO L82 PathProgramCache]: Analyzing trace with hash -2005369607, now seen corresponding path program 5 times [2021-03-25 09:34:55,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:34:55,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735449520] [2021-03-25 09:34:55,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:34:55,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:34:55,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:55,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:34:55,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:55,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:34:55,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:55,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:55,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:55,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:55,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:55,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:55,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:55,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:55,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:55,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:55,870 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 09:34:55,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:34:55,883 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:34:55,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:34:55,898 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:34:55,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:55,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:34:55,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735449520] [2021-03-25 09:34:55,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:34:55,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:34:55,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827786883] [2021-03-25 09:34:55,901 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:34:55,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:34:55,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:34:55,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:34:55,901 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 149 [2021-03-25 09:34:55,902 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 498 transitions, 10884 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:55,902 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:34:55,902 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 149 [2021-03-25 09:34:55,902 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:34:56,682 INFO L129 PetriNetUnfolder]: 512/1167 cut-off events. [2021-03-25 09:34:56,682 INFO L130 PetriNetUnfolder]: For 52022/52026 co-relation queries the response was YES. [2021-03-25 09:34:56,700 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12455 conditions, 1167 events. 512/1167 cut-off events. For 52022/52026 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 7512 event pairs, 14 based on Foata normal form. 5/1030 useless extension candidates. Maximal degree in co-relation 12233. Up to 707 conditions per place. [2021-03-25 09:34:56,707 INFO L132 encePairwiseOnDemand]: 131/149 looper letters, 433 selfloop transitions, 66 changer transitions 4/521 dead transitions. [2021-03-25 09:34:56,707 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 521 transitions, 12506 flow [2021-03-25 09:34:56,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:34:56,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:34:56,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 702 transitions. [2021-03-25 09:34:56,708 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3624161073825503 [2021-03-25 09:34:56,708 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 702 transitions. [2021-03-25 09:34:56,708 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 702 transitions. [2021-03-25 09:34:56,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:34:56,709 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 702 transitions. [2021-03-25 09:34:56,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 54.0) internal successors, (702), 13 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:56,710 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 149.0) internal successors, (2086), 14 states have internal predecessors, (2086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:56,710 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 149.0) internal successors, (2086), 14 states have internal predecessors, (2086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:56,710 INFO L185 Difference]: Start difference. First operand has 451 places, 498 transitions, 10884 flow. Second operand 13 states and 702 transitions. [2021-03-25 09:34:56,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 521 transitions, 12506 flow [2021-03-25 09:34:57,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 455 places, 521 transitions, 12325 flow, removed 51 selfloop flow, removed 8 redundant places. [2021-03-25 09:34:57,221 INFO L241 Difference]: Finished difference. Result has 463 places, 511 transitions, 11321 flow [2021-03-25 09:34:57,221 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=10705, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=498, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=434, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=11321, PETRI_PLACES=463, PETRI_TRANSITIONS=511} [2021-03-25 09:34:57,221 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 402 predicate places. [2021-03-25 09:34:57,221 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:34:57,222 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 463 places, 511 transitions, 11321 flow [2021-03-25 09:34:57,222 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 463 places, 511 transitions, 11321 flow [2021-03-25 09:34:57,226 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 462 places, 511 transitions, 11321 flow [2021-03-25 09:34:57,444 INFO L129 PetriNetUnfolder]: 457/1073 cut-off events. [2021-03-25 09:34:57,444 INFO L130 PetriNetUnfolder]: For 53716/53719 co-relation queries the response was YES. [2021-03-25 09:34:57,460 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11254 conditions, 1073 events. 457/1073 cut-off events. For 53716/53719 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 7008 event pairs, 12 based on Foata normal form. 1/946 useless extension candidates. Maximal degree in co-relation 11029. Up to 239 conditions per place. [2021-03-25 09:34:57,476 INFO L142 LiptonReduction]: Number of co-enabled transitions 1884 [2021-03-25 09:34:57,574 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 09:34:57,574 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:34:57,575 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 354 [2021-03-25 09:34:57,575 INFO L480 AbstractCegarLoop]: Abstraction has has 462 places, 511 transitions, 11339 flow [2021-03-25 09:34:57,575 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:57,575 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:34:57,575 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:34:57,575 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2021-03-25 09:34:57,575 INFO L428 AbstractCegarLoop]: === Iteration 212 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:34:57,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:34:57,575 INFO L82 PathProgramCache]: Analyzing trace with hash -696776734, now seen corresponding path program 1 times [2021-03-25 09:34:57,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:34:57,575 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709047971] [2021-03-25 09:34:57,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:34:57,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:34:57,584 INFO L142 QuantifierPusher]: treesize reduction 13, result has 55.2 percent of original size [2021-03-25 09:34:57,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 09:34:57,593 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 09:34:57,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:34:57,599 INFO L142 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size [2021-03-25 09:34:57,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:57,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:57,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:34:57,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:57,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:57,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:57,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:57,648 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:34:57,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:34:57,662 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:34:57,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:34:57,678 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:34:57,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:57,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:34:57,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709047971] [2021-03-25 09:34:57,694 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:34:57,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:34:57,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077898047] [2021-03-25 09:34:57,695 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:34:57,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:34:57,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:34:57,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:34:57,695 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 150 [2021-03-25 09:34:57,696 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 511 transitions, 11339 flow. Second operand has 11 states, 11 states have (on average 49.0) internal successors, (539), 11 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:57,696 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:34:57,696 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 150 [2021-03-25 09:34:57,696 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:34:58,468 INFO L129 PetriNetUnfolder]: 509/1159 cut-off events. [2021-03-25 09:34:58,469 INFO L130 PetriNetUnfolder]: For 55465/55469 co-relation queries the response was YES. [2021-03-25 09:34:58,485 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12653 conditions, 1159 events. 509/1159 cut-off events. For 55465/55469 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 7416 event pairs, 14 based on Foata normal form. 5/1025 useless extension candidates. Maximal degree in co-relation 12424. Up to 712 conditions per place. [2021-03-25 09:34:58,491 INFO L132 encePairwiseOnDemand]: 129/150 looper letters, 451 selfloop transitions, 52 changer transitions 3/524 dead transitions. [2021-03-25 09:34:58,491 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 474 places, 524 transitions, 12742 flow [2021-03-25 09:34:58,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:34:58,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:34:58,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 696 transitions. [2021-03-25 09:34:58,492 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3569230769230769 [2021-03-25 09:34:58,492 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 696 transitions. [2021-03-25 09:34:58,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 696 transitions. [2021-03-25 09:34:58,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:34:58,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 696 transitions. [2021-03-25 09:34:58,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 53.53846153846154) internal successors, (696), 13 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:58,494 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 150.0) internal successors, (2100), 14 states have internal predecessors, (2100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:58,494 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 150.0) internal successors, (2100), 14 states have internal predecessors, (2100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:58,494 INFO L185 Difference]: Start difference. First operand has 462 places, 511 transitions, 11339 flow. Second operand 13 states and 696 transitions. [2021-03-25 09:34:58,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 474 places, 524 transitions, 12742 flow [2021-03-25 09:34:58,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 470 places, 524 transitions, 12425 flow, removed 142 selfloop flow, removed 4 redundant places. [2021-03-25 09:34:59,001 INFO L241 Difference]: Finished difference. Result has 473 places, 514 transitions, 11437 flow [2021-03-25 09:34:59,001 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=11050, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=511, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=459, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=11437, PETRI_PLACES=473, PETRI_TRANSITIONS=514} [2021-03-25 09:34:59,001 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 412 predicate places. [2021-03-25 09:34:59,001 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:34:59,001 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 473 places, 514 transitions, 11437 flow [2021-03-25 09:34:59,001 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 473 places, 514 transitions, 11437 flow [2021-03-25 09:34:59,005 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 472 places, 514 transitions, 11437 flow [2021-03-25 09:34:59,268 INFO L129 PetriNetUnfolder]: 461/1080 cut-off events. [2021-03-25 09:34:59,268 INFO L130 PetriNetUnfolder]: For 53849/53854 co-relation queries the response was YES. [2021-03-25 09:34:59,281 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11374 conditions, 1080 events. 461/1080 cut-off events. For 53849/53854 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 7089 event pairs, 12 based on Foata normal form. 1/951 useless extension candidates. Maximal degree in co-relation 11147. Up to 242 conditions per place. [2021-03-25 09:34:59,294 INFO L142 LiptonReduction]: Number of co-enabled transitions 1884 [2021-03-25 09:34:59,323 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:34:59,324 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:34:59,324 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 323 [2021-03-25 09:34:59,324 INFO L480 AbstractCegarLoop]: Abstraction has has 472 places, 514 transitions, 11437 flow [2021-03-25 09:34:59,324 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.0) internal successors, (539), 11 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:59,324 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:34:59,324 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:34:59,324 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2021-03-25 09:34:59,324 INFO L428 AbstractCegarLoop]: === Iteration 213 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:34:59,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:34:59,324 INFO L82 PathProgramCache]: Analyzing trace with hash 1113712968, now seen corresponding path program 2 times [2021-03-25 09:34:59,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:34:59,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388893375] [2021-03-25 09:34:59,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:34:59,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:34:59,348 INFO L142 QuantifierPusher]: treesize reduction 13, result has 55.2 percent of original size [2021-03-25 09:34:59,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 09:34:59,356 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 09:34:59,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:34:59,361 INFO L142 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size [2021-03-25 09:34:59,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:59,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:59,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:34:59,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:59,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:59,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:59,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:59,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:34:59,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:34:59,406 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:34:59,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:34:59,418 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:34:59,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:34:59,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:34:59,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388893375] [2021-03-25 09:34:59,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:34:59,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:34:59,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737958317] [2021-03-25 09:34:59,433 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:34:59,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:34:59,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:34:59,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:34:59,434 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 150 [2021-03-25 09:34:59,434 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 472 places, 514 transitions, 11437 flow. Second operand has 11 states, 11 states have (on average 49.0) internal successors, (539), 11 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:34:59,434 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:34:59,434 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 150 [2021-03-25 09:34:59,434 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:35:00,028 INFO L129 PetriNetUnfolder]: 511/1163 cut-off events. [2021-03-25 09:35:00,029 INFO L130 PetriNetUnfolder]: For 58465/58471 co-relation queries the response was YES. [2021-03-25 09:35:00,045 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12766 conditions, 1163 events. 511/1163 cut-off events. For 58465/58471 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 7500 event pairs, 3 based on Foata normal form. 7/1031 useless extension candidates. Maximal degree in co-relation 12535. Up to 712 conditions per place. [2021-03-25 09:35:00,051 INFO L132 encePairwiseOnDemand]: 130/150 looper letters, 455 selfloop transitions, 48 changer transitions 6/527 dead transitions. [2021-03-25 09:35:00,051 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 483 places, 527 transitions, 12864 flow [2021-03-25 09:35:00,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:35:00,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:35:00,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 646 transitions. [2021-03-25 09:35:00,052 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.35888888888888887 [2021-03-25 09:35:00,052 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 646 transitions. [2021-03-25 09:35:00,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 646 transitions. [2021-03-25 09:35:00,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:35:00,053 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 646 transitions. [2021-03-25 09:35:00,053 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 53.833333333333336) internal successors, (646), 12 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:00,054 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 150.0) internal successors, (1950), 13 states have internal predecessors, (1950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:00,054 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 150.0) internal successors, (1950), 13 states have internal predecessors, (1950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:00,054 INFO L185 Difference]: Start difference. First operand has 472 places, 514 transitions, 11437 flow. Second operand 12 states and 646 transitions. [2021-03-25 09:35:00,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 483 places, 527 transitions, 12864 flow [2021-03-25 09:35:00,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 527 transitions, 12516 flow, removed 123 selfloop flow, removed 12 redundant places. [2021-03-25 09:35:00,538 INFO L241 Difference]: Finished difference. Result has 474 places, 514 transitions, 11493 flow [2021-03-25 09:35:00,538 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=11089, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=514, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=468, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=11493, PETRI_PLACES=474, PETRI_TRANSITIONS=514} [2021-03-25 09:35:00,538 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 413 predicate places. [2021-03-25 09:35:00,538 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:35:00,538 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 474 places, 514 transitions, 11493 flow [2021-03-25 09:35:00,538 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 474 places, 514 transitions, 11493 flow [2021-03-25 09:35:00,542 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 469 places, 514 transitions, 11493 flow [2021-03-25 09:35:00,748 INFO L129 PetriNetUnfolder]: 468/1088 cut-off events. [2021-03-25 09:35:00,748 INFO L130 PetriNetUnfolder]: For 55874/55879 co-relation queries the response was YES. [2021-03-25 09:35:00,764 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11455 conditions, 1088 events. 468/1088 cut-off events. For 55874/55879 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 7116 event pairs, 12 based on Foata normal form. 1/954 useless extension candidates. Maximal degree in co-relation 11247. Up to 245 conditions per place. [2021-03-25 09:35:00,780 INFO L142 LiptonReduction]: Number of co-enabled transitions 1850 [2021-03-25 09:35:00,811 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:35:00,811 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:35:00,811 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 273 [2021-03-25 09:35:00,811 INFO L480 AbstractCegarLoop]: Abstraction has has 469 places, 514 transitions, 11493 flow [2021-03-25 09:35:00,811 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.0) internal successors, (539), 11 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:00,811 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:35:00,811 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:35:00,811 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2021-03-25 09:35:00,811 INFO L428 AbstractCegarLoop]: === Iteration 214 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:35:00,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:35:00,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1269372739, now seen corresponding path program 6 times [2021-03-25 09:35:00,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:35:00,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000858534] [2021-03-25 09:35:00,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:35:00,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:35:00,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:00,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:35:00,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:00,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:35:00,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:00,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:00,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:00,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:00,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:00,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:00,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:00,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:00,891 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 09:35:00,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:35:00,893 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 09:35:00,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:35:00,905 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:35:00,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:35:00,917 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:35:00,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:00,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:35:00,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000858534] [2021-03-25 09:35:00,934 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:35:00,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:35:00,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850491241] [2021-03-25 09:35:00,934 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:35:00,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:35:00,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:35:00,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:35:00,935 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 150 [2021-03-25 09:35:00,935 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 469 places, 514 transitions, 11493 flow. Second operand has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:00,935 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:35:00,935 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 150 [2021-03-25 09:35:00,935 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:35:01,536 INFO L129 PetriNetUnfolder]: 506/1144 cut-off events. [2021-03-25 09:35:01,536 INFO L130 PetriNetUnfolder]: For 57815/57821 co-relation queries the response was YES. [2021-03-25 09:35:01,554 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12651 conditions, 1144 events. 506/1144 cut-off events. For 57815/57821 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 7224 event pairs, 3 based on Foata normal form. 7/1016 useless extension candidates. Maximal degree in co-relation 12441. Up to 720 conditions per place. [2021-03-25 09:35:01,559 INFO L132 encePairwiseOnDemand]: 132/150 looper letters, 459 selfloop transitions, 41 changer transitions 4/522 dead transitions. [2021-03-25 09:35:01,559 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 480 places, 522 transitions, 12587 flow [2021-03-25 09:35:01,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:35:01,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:35:01,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 643 transitions. [2021-03-25 09:35:01,560 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3572222222222222 [2021-03-25 09:35:01,560 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 643 transitions. [2021-03-25 09:35:01,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 643 transitions. [2021-03-25 09:35:01,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:35:01,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 643 transitions. [2021-03-25 09:35:01,561 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 53.583333333333336) internal successors, (643), 12 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:01,562 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 150.0) internal successors, (1950), 13 states have internal predecessors, (1950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:01,562 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 150.0) internal successors, (1950), 13 states have internal predecessors, (1950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:01,562 INFO L185 Difference]: Start difference. First operand has 469 places, 514 transitions, 11493 flow. Second operand 12 states and 643 transitions. [2021-03-25 09:35:01,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 480 places, 522 transitions, 12587 flow [2021-03-25 09:35:02,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 469 places, 522 transitions, 12184 flow, removed 168 selfloop flow, removed 11 redundant places. [2021-03-25 09:35:02,092 INFO L241 Difference]: Finished difference. Result has 472 places, 512 transitions, 11154 flow [2021-03-25 09:35:02,093 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=11092, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=514, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=473, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=11154, PETRI_PLACES=472, PETRI_TRANSITIONS=512} [2021-03-25 09:35:02,093 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 411 predicate places. [2021-03-25 09:35:02,093 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:35:02,093 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 472 places, 512 transitions, 11154 flow [2021-03-25 09:35:02,093 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 472 places, 512 transitions, 11154 flow [2021-03-25 09:35:02,098 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 471 places, 512 transitions, 11154 flow [2021-03-25 09:35:02,326 INFO L129 PetriNetUnfolder]: 463/1078 cut-off events. [2021-03-25 09:35:02,327 INFO L130 PetriNetUnfolder]: For 51614/51619 co-relation queries the response was YES. [2021-03-25 09:35:02,344 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11129 conditions, 1078 events. 463/1078 cut-off events. For 51614/51619 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 7046 event pairs, 14 based on Foata normal form. 3/946 useless extension candidates. Maximal degree in co-relation 10902. Up to 243 conditions per place. [2021-03-25 09:35:02,358 INFO L142 LiptonReduction]: Number of co-enabled transitions 1850 [2021-03-25 09:35:02,387 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:35:02,387 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:35:02,388 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 295 [2021-03-25 09:35:02,388 INFO L480 AbstractCegarLoop]: Abstraction has has 471 places, 512 transitions, 11154 flow [2021-03-25 09:35:02,388 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:02,388 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:35:02,388 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:35:02,388 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2021-03-25 09:35:02,388 INFO L428 AbstractCegarLoop]: === Iteration 215 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:35:02,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:35:02,388 INFO L82 PathProgramCache]: Analyzing trace with hash 1683209225, now seen corresponding path program 7 times [2021-03-25 09:35:02,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:35:02,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521833462] [2021-03-25 09:35:02,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:35:02,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:35:02,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:02,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:35:02,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:02,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:35:02,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:02,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:02,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:02,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:02,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:02,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:02,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:02,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:02,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:02,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:02,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:02,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:02,470 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:35:02,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:35:02,485 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:35:02,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:02,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:35:02,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521833462] [2021-03-25 09:35:02,487 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:35:02,488 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:35:02,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636778922] [2021-03-25 09:35:02,488 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:35:02,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:35:02,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:35:02,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:35:02,488 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 150 [2021-03-25 09:35:02,489 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 512 transitions, 11154 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:02,489 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:35:02,489 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 150 [2021-03-25 09:35:02,489 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:35:03,134 INFO L129 PetriNetUnfolder]: 502/1134 cut-off events. [2021-03-25 09:35:03,134 INFO L130 PetriNetUnfolder]: For 54453/54466 co-relation queries the response was YES. [2021-03-25 09:35:03,150 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12455 conditions, 1134 events. 502/1134 cut-off events. For 54453/54466 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 7115 event pairs, 12 based on Foata normal form. 14/1016 useless extension candidates. Maximal degree in co-relation 12224. Up to 704 conditions per place. [2021-03-25 09:35:03,156 INFO L132 encePairwiseOnDemand]: 132/150 looper letters, 454 selfloop transitions, 33 changer transitions 14/519 dead transitions. [2021-03-25 09:35:03,156 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 483 places, 519 transitions, 12206 flow [2021-03-25 09:35:03,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:35:03,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:35:03,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 689 transitions. [2021-03-25 09:35:03,157 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.35333333333333333 [2021-03-25 09:35:03,157 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 689 transitions. [2021-03-25 09:35:03,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 689 transitions. [2021-03-25 09:35:03,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:35:03,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 689 transitions. [2021-03-25 09:35:03,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 53.0) internal successors, (689), 13 states have internal predecessors, (689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:03,158 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 150.0) internal successors, (2100), 14 states have internal predecessors, (2100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:03,158 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 150.0) internal successors, (2100), 14 states have internal predecessors, (2100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:03,158 INFO L185 Difference]: Start difference. First operand has 471 places, 512 transitions, 11154 flow. Second operand 13 states and 689 transitions. [2021-03-25 09:35:03,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 483 places, 519 transitions, 12206 flow [2021-03-25 09:35:03,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 469 places, 519 transitions, 12099 flow, removed 3 selfloop flow, removed 14 redundant places. [2021-03-25 09:35:03,666 INFO L241 Difference]: Finished difference. Result has 470 places, 498 transitions, 10923 flow [2021-03-25 09:35:03,666 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=11047, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=512, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=479, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=10923, PETRI_PLACES=470, PETRI_TRANSITIONS=498} [2021-03-25 09:35:03,666 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 409 predicate places. [2021-03-25 09:35:03,666 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:35:03,666 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 470 places, 498 transitions, 10923 flow [2021-03-25 09:35:03,666 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 470 places, 498 transitions, 10923 flow [2021-03-25 09:35:03,670 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 460 places, 498 transitions, 10923 flow [2021-03-25 09:35:03,896 INFO L129 PetriNetUnfolder]: 453/1040 cut-off events. [2021-03-25 09:35:03,896 INFO L130 PetriNetUnfolder]: For 54008/54029 co-relation queries the response was YES. [2021-03-25 09:35:03,912 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11237 conditions, 1040 events. 453/1040 cut-off events. For 54008/54029 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 6693 event pairs, 14 based on Foata normal form. 1/917 useless extension candidates. Maximal degree in co-relation 11021. Up to 241 conditions per place. [2021-03-25 09:35:03,928 INFO L142 LiptonReduction]: Number of co-enabled transitions 1742 [2021-03-25 09:35:03,958 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:35:03,959 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:35:03,959 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 293 [2021-03-25 09:35:03,959 INFO L480 AbstractCegarLoop]: Abstraction has has 460 places, 498 transitions, 10923 flow [2021-03-25 09:35:03,959 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:03,959 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:35:03,959 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:35:03,959 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2021-03-25 09:35:03,959 INFO L428 AbstractCegarLoop]: === Iteration 216 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:35:03,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:35:03,959 INFO L82 PathProgramCache]: Analyzing trace with hash 2054827830, now seen corresponding path program 1 times [2021-03-25 09:35:03,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:35:03,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992978868] [2021-03-25 09:35:03,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:35:03,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:35:03,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:03,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:35:03,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:03,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:35:03,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:03,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:03,988 INFO L142 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size [2021-03-25 09:35:03,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:04,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:04,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:04,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:04,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:04,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:04,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:04,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:04,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:04,060 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:35:04,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:35:04,078 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:35:04,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:04,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:35:04,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992978868] [2021-03-25 09:35:04,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:35:04,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:35:04,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887442555] [2021-03-25 09:35:04,081 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:35:04,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:35:04,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:35:04,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:35:04,082 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 150 [2021-03-25 09:35:04,082 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 460 places, 498 transitions, 10923 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:04,082 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:35:04,082 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 150 [2021-03-25 09:35:04,082 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:35:04,784 INFO L129 PetriNetUnfolder]: 487/1082 cut-off events. [2021-03-25 09:35:04,784 INFO L130 PetriNetUnfolder]: For 55053/55068 co-relation queries the response was YES. [2021-03-25 09:35:04,800 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12244 conditions, 1082 events. 487/1082 cut-off events. For 55053/55068 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 6641 event pairs, 4 based on Foata normal form. 16/978 useless extension candidates. Maximal degree in co-relation 12029. Up to 698 conditions per place. [2021-03-25 09:35:04,806 INFO L132 encePairwiseOnDemand]: 133/150 looper letters, 452 selfloop transitions, 38 changer transitions 0/508 dead transitions. [2021-03-25 09:35:04,806 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 472 places, 508 transitions, 12128 flow [2021-03-25 09:35:04,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:35:04,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:35:04,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 691 transitions. [2021-03-25 09:35:04,808 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.35435897435897434 [2021-03-25 09:35:04,808 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 691 transitions. [2021-03-25 09:35:04,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 691 transitions. [2021-03-25 09:35:04,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:35:04,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 691 transitions. [2021-03-25 09:35:04,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 53.15384615384615) internal successors, (691), 13 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:04,809 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 150.0) internal successors, (2100), 14 states have internal predecessors, (2100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:04,809 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 150.0) internal successors, (2100), 14 states have internal predecessors, (2100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:04,809 INFO L185 Difference]: Start difference. First operand has 460 places, 498 transitions, 10923 flow. Second operand 13 states and 691 transitions. [2021-03-25 09:35:04,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 472 places, 508 transitions, 12128 flow [2021-03-25 09:35:05,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 508 transitions, 11954 flow, removed 20 selfloop flow, removed 14 redundant places. [2021-03-25 09:35:05,381 INFO L241 Difference]: Finished difference. Result has 459 places, 498 transitions, 10841 flow [2021-03-25 09:35:05,381 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=10754, PETRI_DIFFERENCE_MINUEND_PLACES=446, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=498, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=460, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=10841, PETRI_PLACES=459, PETRI_TRANSITIONS=498} [2021-03-25 09:35:05,381 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 398 predicate places. [2021-03-25 09:35:05,382 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:35:05,382 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 459 places, 498 transitions, 10841 flow [2021-03-25 09:35:05,382 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 459 places, 498 transitions, 10841 flow [2021-03-25 09:35:05,386 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 459 places, 498 transitions, 10841 flow [2021-03-25 09:35:05,596 INFO L129 PetriNetUnfolder]: 452/1039 cut-off events. [2021-03-25 09:35:05,596 INFO L130 PetriNetUnfolder]: For 50745/50748 co-relation queries the response was YES. [2021-03-25 09:35:05,613 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11003 conditions, 1039 events. 452/1039 cut-off events. For 50745/50748 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 6615 event pairs, 14 based on Foata normal form. 1/917 useless extension candidates. Maximal degree in co-relation 10785. Up to 237 conditions per place. [2021-03-25 09:35:05,629 INFO L142 LiptonReduction]: Number of co-enabled transitions 1742 [2021-03-25 09:35:05,663 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:35:05,663 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:35:05,663 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 281 [2021-03-25 09:35:05,664 INFO L480 AbstractCegarLoop]: Abstraction has has 459 places, 498 transitions, 10841 flow [2021-03-25 09:35:05,664 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:05,664 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:35:05,664 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:35:05,664 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2021-03-25 09:35:05,664 INFO L428 AbstractCegarLoop]: === Iteration 217 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:35:05,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:35:05,664 INFO L82 PathProgramCache]: Analyzing trace with hash 154217114, now seen corresponding path program 1 times [2021-03-25 09:35:05,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:35:05,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74696864] [2021-03-25 09:35:05,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:35:05,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:35:05,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:05,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:35:05,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:05,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:35:05,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:05,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:35:05,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:05,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:05,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:05,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:05,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:05,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:05,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:05,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:05,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:05,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:05,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:05,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:05,770 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:35:05,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:35:05,786 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:35:05,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:05,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:35:05,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74696864] [2021-03-25 09:35:05,789 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:35:05,789 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:35:05,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027483550] [2021-03-25 09:35:05,789 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:35:05,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:35:05,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:35:05,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:35:05,790 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 150 [2021-03-25 09:35:05,790 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 498 transitions, 10841 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:05,790 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:35:05,790 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 150 [2021-03-25 09:35:05,790 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:35:06,541 INFO L129 PetriNetUnfolder]: 517/1149 cut-off events. [2021-03-25 09:35:06,541 INFO L130 PetriNetUnfolder]: For 57521/57532 co-relation queries the response was YES. [2021-03-25 09:35:06,557 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12881 conditions, 1149 events. 517/1149 cut-off events. For 57521/57532 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 7145 event pairs, 13 based on Foata normal form. 8/1024 useless extension candidates. Maximal degree in co-relation 12660. Up to 696 conditions per place. [2021-03-25 09:35:06,561 INFO L132 encePairwiseOnDemand]: 134/150 looper letters, 442 selfloop transitions, 75 changer transitions 0/535 dead transitions. [2021-03-25 09:35:06,562 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 472 places, 535 transitions, 12955 flow [2021-03-25 09:35:06,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:35:06,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:35:06,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 758 transitions. [2021-03-25 09:35:06,563 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.36095238095238097 [2021-03-25 09:35:06,563 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 758 transitions. [2021-03-25 09:35:06,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 758 transitions. [2021-03-25 09:35:06,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:35:06,563 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 758 transitions. [2021-03-25 09:35:06,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 54.142857142857146) internal successors, (758), 14 states have internal predecessors, (758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:06,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 150.0) internal successors, (2250), 15 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:06,564 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 150.0) internal successors, (2250), 15 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:06,564 INFO L185 Difference]: Start difference. First operand has 459 places, 498 transitions, 10841 flow. Second operand 14 states and 758 transitions. [2021-03-25 09:35:06,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 472 places, 535 transitions, 12955 flow [2021-03-25 09:35:06,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 535 transitions, 12879 flow, removed 0 selfloop flow, removed 12 redundant places. [2021-03-25 09:35:07,007 INFO L241 Difference]: Finished difference. Result has 466 places, 523 transitions, 11989 flow [2021-03-25 09:35:07,008 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=10765, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=498, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=431, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=11989, PETRI_PLACES=466, PETRI_TRANSITIONS=523} [2021-03-25 09:35:07,008 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 405 predicate places. [2021-03-25 09:35:07,008 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:35:07,008 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 466 places, 523 transitions, 11989 flow [2021-03-25 09:35:07,008 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 466 places, 523 transitions, 11989 flow [2021-03-25 09:35:07,012 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 466 places, 523 transitions, 11989 flow [2021-03-25 09:35:07,198 INFO L129 PetriNetUnfolder]: 472/1087 cut-off events. [2021-03-25 09:35:07,199 INFO L130 PetriNetUnfolder]: For 57787/57796 co-relation queries the response was YES. [2021-03-25 09:35:07,271 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11708 conditions, 1087 events. 472/1087 cut-off events. For 57787/57796 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 7036 event pairs, 15 based on Foata normal form. 4/961 useless extension candidates. Maximal degree in co-relation 11483. Up to 250 conditions per place. [2021-03-25 09:35:07,284 INFO L142 LiptonReduction]: Number of co-enabled transitions 1884 [2021-03-25 09:35:07,313 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:35:07,313 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:35:07,313 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 305 [2021-03-25 09:35:07,313 INFO L480 AbstractCegarLoop]: Abstraction has has 466 places, 523 transitions, 11989 flow [2021-03-25 09:35:07,314 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:07,314 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:35:07,314 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:35:07,314 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2021-03-25 09:35:07,314 INFO L428 AbstractCegarLoop]: === Iteration 218 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:35:07,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:35:07,314 INFO L82 PathProgramCache]: Analyzing trace with hash -1776677327, now seen corresponding path program 3 times [2021-03-25 09:35:07,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:35:07,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950644183] [2021-03-25 09:35:07,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:35:07,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:35:07,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:07,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:35:07,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:07,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:35:07,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:07,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:07,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:07,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:07,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:07,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:07,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:07,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:07,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:07,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:07,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:07,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:07,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:07,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:07,415 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:35:07,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:35:07,430 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:35:07,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:07,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:35:07,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950644183] [2021-03-25 09:35:07,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:35:07,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:35:07,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145553949] [2021-03-25 09:35:07,432 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:35:07,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:35:07,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:35:07,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:35:07,433 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 150 [2021-03-25 09:35:07,433 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 466 places, 523 transitions, 11989 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:07,433 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:35:07,433 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 150 [2021-03-25 09:35:07,433 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:35:08,129 INFO L129 PetriNetUnfolder]: 529/1197 cut-off events. [2021-03-25 09:35:08,129 INFO L130 PetriNetUnfolder]: For 61844/61848 co-relation queries the response was YES. [2021-03-25 09:35:08,144 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13426 conditions, 1197 events. 529/1197 cut-off events. For 61844/61848 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 7685 event pairs, 11 based on Foata normal form. 5/1062 useless extension candidates. Maximal degree in co-relation 13195. Up to 733 conditions per place. [2021-03-25 09:35:08,149 INFO L132 encePairwiseOnDemand]: 133/150 looper letters, 479 selfloop transitions, 49 changer transitions 0/546 dead transitions. [2021-03-25 09:35:08,149 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 481 places, 546 transitions, 13691 flow [2021-03-25 09:35:08,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 09:35:08,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 09:35:08,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 838 transitions. [2021-03-25 09:35:08,150 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3491666666666667 [2021-03-25 09:35:08,150 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 838 transitions. [2021-03-25 09:35:08,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 838 transitions. [2021-03-25 09:35:08,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:35:08,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 838 transitions. [2021-03-25 09:35:08,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 52.375) internal successors, (838), 16 states have internal predecessors, (838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:08,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 150.0) internal successors, (2550), 17 states have internal predecessors, (2550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:08,152 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 150.0) internal successors, (2550), 17 states have internal predecessors, (2550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:08,152 INFO L185 Difference]: Start difference. First operand has 466 places, 523 transitions, 11989 flow. Second operand 16 states and 838 transitions. [2021-03-25 09:35:08,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 481 places, 546 transitions, 13691 flow [2021-03-25 09:35:08,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 476 places, 546 transitions, 13195 flow, removed 233 selfloop flow, removed 5 redundant places. [2021-03-25 09:35:08,616 INFO L241 Difference]: Finished difference. Result has 479 places, 537 transitions, 12175 flow [2021-03-25 09:35:08,616 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=11493, PETRI_DIFFERENCE_MINUEND_PLACES=461, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=523, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=481, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=12175, PETRI_PLACES=479, PETRI_TRANSITIONS=537} [2021-03-25 09:35:08,616 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 418 predicate places. [2021-03-25 09:35:08,616 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:35:08,616 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 479 places, 537 transitions, 12175 flow [2021-03-25 09:35:08,616 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 479 places, 537 transitions, 12175 flow [2021-03-25 09:35:08,620 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 479 places, 537 transitions, 12175 flow [2021-03-25 09:35:08,840 INFO L129 PetriNetUnfolder]: 480/1118 cut-off events. [2021-03-25 09:35:08,840 INFO L130 PetriNetUnfolder]: For 58624/58627 co-relation queries the response was YES. [2021-03-25 09:35:08,857 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11999 conditions, 1118 events. 480/1118 cut-off events. For 58624/58627 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 7295 event pairs, 14 based on Foata normal form. 1/987 useless extension candidates. Maximal degree in co-relation 11784. Up to 255 conditions per place. [2021-03-25 09:35:08,874 INFO L142 LiptonReduction]: Number of co-enabled transitions 2030 [2021-03-25 09:35:08,988 INFO L154 LiptonReduction]: Checked pairs total: 10 [2021-03-25 09:35:08,988 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 09:35:08,988 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 372 [2021-03-25 09:35:08,988 INFO L480 AbstractCegarLoop]: Abstraction has has 479 places, 537 transitions, 12255 flow [2021-03-25 09:35:08,988 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:08,988 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:35:08,988 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:35:08,988 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2021-03-25 09:35:08,988 INFO L428 AbstractCegarLoop]: === Iteration 219 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:35:08,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:35:08,989 INFO L82 PathProgramCache]: Analyzing trace with hash -1072295137, now seen corresponding path program 4 times [2021-03-25 09:35:08,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:35:08,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484904129] [2021-03-25 09:35:08,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:35:08,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:35:09,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:09,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:35:09,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:09,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:35:09,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:09,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:09,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:09,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:09,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:09,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:09,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:09,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:09,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:09,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:09,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:09,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:09,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:09,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:09,097 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:35:09,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:35:09,113 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:35:09,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:09,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:35:09,116 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484904129] [2021-03-25 09:35:09,116 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:35:09,116 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:35:09,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672071608] [2021-03-25 09:35:09,116 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:35:09,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:35:09,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:35:09,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:35:09,116 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 152 [2021-03-25 09:35:09,117 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 479 places, 537 transitions, 12255 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:09,117 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:35:09,117 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 152 [2021-03-25 09:35:09,117 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:35:09,971 INFO L129 PetriNetUnfolder]: 553/1277 cut-off events. [2021-03-25 09:35:09,971 INFO L130 PetriNetUnfolder]: For 73105/73120 co-relation queries the response was YES. [2021-03-25 09:35:09,991 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14399 conditions, 1277 events. 553/1277 cut-off events. For 73105/73120 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 8428 event pairs, 4 based on Foata normal form. 16/1139 useless extension candidates. Maximal degree in co-relation 14164. Up to 741 conditions per place. [2021-03-25 09:35:09,997 INFO L132 encePairwiseOnDemand]: 131/152 looper letters, 485 selfloop transitions, 74 changer transitions 0/577 dead transitions. [2021-03-25 09:35:09,997 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 495 places, 577 transitions, 15181 flow [2021-03-25 09:35:09,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-25 09:35:09,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-25 09:35:09,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 900 transitions. [2021-03-25 09:35:09,999 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.34829721362229105 [2021-03-25 09:35:09,999 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 900 transitions. [2021-03-25 09:35:09,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 900 transitions. [2021-03-25 09:35:09,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:35:09,999 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 900 transitions. [2021-03-25 09:35:09,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 52.94117647058823) internal successors, (900), 17 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:10,000 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 152.0) internal successors, (2736), 18 states have internal predecessors, (2736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:10,000 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 152.0) internal successors, (2736), 18 states have internal predecessors, (2736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:10,001 INFO L185 Difference]: Start difference. First operand has 479 places, 537 transitions, 12255 flow. Second operand 17 states and 900 transitions. [2021-03-25 09:35:10,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 495 places, 577 transitions, 15181 flow [2021-03-25 09:35:10,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 490 places, 577 transitions, 14081 flow, removed 527 selfloop flow, removed 5 redundant places. [2021-03-25 09:35:10,557 INFO L241 Difference]: Finished difference. Result has 496 places, 566 transitions, 13074 flow [2021-03-25 09:35:10,557 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=11623, PETRI_DIFFERENCE_MINUEND_PLACES=474, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=537, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=479, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=13074, PETRI_PLACES=496, PETRI_TRANSITIONS=566} [2021-03-25 09:35:10,558 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 435 predicate places. [2021-03-25 09:35:10,558 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:35:10,558 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 496 places, 566 transitions, 13074 flow [2021-03-25 09:35:10,558 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 496 places, 566 transitions, 13074 flow [2021-03-25 09:35:10,562 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 496 places, 566 transitions, 13074 flow [2021-03-25 09:35:10,800 INFO L129 PetriNetUnfolder]: 505/1207 cut-off events. [2021-03-25 09:35:10,800 INFO L130 PetriNetUnfolder]: For 65182/65242 co-relation queries the response was YES. [2021-03-25 09:35:10,818 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12420 conditions, 1207 events. 505/1207 cut-off events. For 65182/65242 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 8322 event pairs, 9 based on Foata normal form. 9/1055 useless extension candidates. Maximal degree in co-relation 12198. Up to 258 conditions per place. [2021-03-25 09:35:10,836 INFO L142 LiptonReduction]: Number of co-enabled transitions 2302 [2021-03-25 09:35:11,069 INFO L154 LiptonReduction]: Checked pairs total: 15 [2021-03-25 09:35:11,069 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 09:35:11,069 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 511 [2021-03-25 09:35:11,069 INFO L480 AbstractCegarLoop]: Abstraction has has 496 places, 566 transitions, 13179 flow [2021-03-25 09:35:11,069 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:11,069 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:35:11,069 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:35:11,069 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2021-03-25 09:35:11,069 INFO L428 AbstractCegarLoop]: === Iteration 220 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:35:11,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:35:11,070 INFO L82 PathProgramCache]: Analyzing trace with hash 809935670, now seen corresponding path program 1 times [2021-03-25 09:35:11,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:35:11,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510689149] [2021-03-25 09:35:11,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:35:11,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:35:11,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:11,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:35:11,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:11,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:35:11,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:11,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:11,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:11,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:11,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:11,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:11,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:11,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:11,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:11,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:11,161 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:35:11,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:35:11,174 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:35:11,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:11,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:35:11,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510689149] [2021-03-25 09:35:11,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:35:11,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:35:11,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697823078] [2021-03-25 09:35:11,177 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:35:11,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:35:11,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:35:11,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:35:11,178 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 155 [2021-03-25 09:35:11,178 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 496 places, 566 transitions, 13179 flow. Second operand has 9 states, 9 states have (on average 49.22222222222222) internal successors, (443), 9 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:11,178 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:35:11,178 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 155 [2021-03-25 09:35:11,178 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:35:11,804 INFO L129 PetriNetUnfolder]: 553/1276 cut-off events. [2021-03-25 09:35:11,804 INFO L130 PetriNetUnfolder]: For 69038/69044 co-relation queries the response was YES. [2021-03-25 09:35:11,823 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14137 conditions, 1276 events. 553/1276 cut-off events. For 69038/69044 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 8481 event pairs, 4 based on Foata normal form. 7/1128 useless extension candidates. Maximal degree in co-relation 13895. Up to 778 conditions per place. [2021-03-25 09:35:11,829 INFO L132 encePairwiseOnDemand]: 139/155 looper letters, 511 selfloop transitions, 45 changer transitions 0/574 dead transitions. [2021-03-25 09:35:11,830 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 504 places, 574 transitions, 14355 flow [2021-03-25 09:35:11,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 09:35:11,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 09:35:11,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 500 transitions. [2021-03-25 09:35:11,831 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.35842293906810035 [2021-03-25 09:35:11,831 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 500 transitions. [2021-03-25 09:35:11,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 500 transitions. [2021-03-25 09:35:11,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:35:11,831 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 500 transitions. [2021-03-25 09:35:11,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 55.55555555555556) internal successors, (500), 9 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:11,832 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 155.0) internal successors, (1550), 10 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:11,832 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 155.0) internal successors, (1550), 10 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:11,832 INFO L185 Difference]: Start difference. First operand has 496 places, 566 transitions, 13179 flow. Second operand 9 states and 500 transitions. [2021-03-25 09:35:11,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 504 places, 574 transitions, 14355 flow [2021-03-25 09:35:12,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 501 places, 574 transitions, 13120 flow, removed 604 selfloop flow, removed 3 redundant places. [2021-03-25 09:35:12,395 INFO L241 Difference]: Finished difference. Result has 502 places, 566 transitions, 12045 flow [2021-03-25 09:35:12,396 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=11944, PETRI_DIFFERENCE_MINUEND_PLACES=493, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=566, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=521, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=12045, PETRI_PLACES=502, PETRI_TRANSITIONS=566} [2021-03-25 09:35:12,396 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 441 predicate places. [2021-03-25 09:35:12,396 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:35:12,396 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 502 places, 566 transitions, 12045 flow [2021-03-25 09:35:12,396 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 502 places, 566 transitions, 12045 flow [2021-03-25 09:35:12,401 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 502 places, 566 transitions, 12045 flow [2021-03-25 09:35:12,626 INFO L129 PetriNetUnfolder]: 508/1212 cut-off events. [2021-03-25 09:35:12,627 INFO L130 PetriNetUnfolder]: For 55592/55652 co-relation queries the response was YES. [2021-03-25 09:35:12,646 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11816 conditions, 1212 events. 508/1212 cut-off events. For 55592/55652 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 8362 event pairs, 12 based on Foata normal form. 9/1056 useless extension candidates. Maximal degree in co-relation 11592. Up to 244 conditions per place. [2021-03-25 09:35:12,664 INFO L142 LiptonReduction]: Number of co-enabled transitions 2302 [2021-03-25 09:35:12,700 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:35:12,700 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:35:12,701 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 305 [2021-03-25 09:35:12,701 INFO L480 AbstractCegarLoop]: Abstraction has has 502 places, 566 transitions, 12045 flow [2021-03-25 09:35:12,701 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 49.22222222222222) internal successors, (443), 9 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:12,701 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:35:12,701 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:35:12,701 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2021-03-25 09:35:12,701 INFO L428 AbstractCegarLoop]: === Iteration 221 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:35:12,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:35:12,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1278395434, now seen corresponding path program 1 times [2021-03-25 09:35:12,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:35:12,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112457408] [2021-03-25 09:35:12,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:35:12,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:35:12,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:12,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:35:12,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:12,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:35:12,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:12,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:12,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:12,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:12,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:12,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:12,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:12,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:12,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:12,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:12,773 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:35:12,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:35:12,792 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:35:12,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:12,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:35:12,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112457408] [2021-03-25 09:35:12,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:35:12,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:35:12,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989753503] [2021-03-25 09:35:12,796 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:35:12,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:35:12,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:35:12,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:35:12,796 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 155 [2021-03-25 09:35:12,797 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 502 places, 566 transitions, 12045 flow. Second operand has 10 states, 10 states have (on average 49.1) internal successors, (491), 10 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:12,797 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:35:12,797 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 155 [2021-03-25 09:35:12,797 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:35:13,460 INFO L129 PetriNetUnfolder]: 553/1281 cut-off events. [2021-03-25 09:35:13,460 INFO L130 PetriNetUnfolder]: For 59981/59987 co-relation queries the response was YES. [2021-03-25 09:35:13,478 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13495 conditions, 1281 events. 553/1281 cut-off events. For 59981/59987 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 8528 event pairs, 4 based on Foata normal form. 7/1131 useless extension candidates. Maximal degree in co-relation 13251. Up to 749 conditions per place. [2021-03-25 09:35:13,484 INFO L132 encePairwiseOnDemand]: 133/155 looper letters, 491 selfloop transitions, 67 changer transitions 0/576 dead transitions. [2021-03-25 09:35:13,484 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 511 places, 576 transitions, 13245 flow [2021-03-25 09:35:13,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:35:13,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:35:13,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 555 transitions. [2021-03-25 09:35:13,485 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3580645161290323 [2021-03-25 09:35:13,485 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 555 transitions. [2021-03-25 09:35:13,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 555 transitions. [2021-03-25 09:35:13,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:35:13,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 555 transitions. [2021-03-25 09:35:13,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 55.5) internal successors, (555), 10 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:13,486 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 155.0) internal successors, (1705), 11 states have internal predecessors, (1705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:13,486 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 155.0) internal successors, (1705), 11 states have internal predecessors, (1705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:13,487 INFO L185 Difference]: Start difference. First operand has 502 places, 566 transitions, 12045 flow. Second operand 10 states and 555 transitions. [2021-03-25 09:35:13,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 511 places, 576 transitions, 13245 flow [2021-03-25 09:35:13,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 505 places, 576 transitions, 13171 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-03-25 09:35:13,984 INFO L241 Difference]: Finished difference. Result has 506 places, 566 transitions, 12117 flow [2021-03-25 09:35:13,984 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=11971, PETRI_DIFFERENCE_MINUEND_PLACES=496, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=566, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=499, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=12117, PETRI_PLACES=506, PETRI_TRANSITIONS=566} [2021-03-25 09:35:13,984 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 445 predicate places. [2021-03-25 09:35:13,984 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:35:13,984 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 506 places, 566 transitions, 12117 flow [2021-03-25 09:35:13,984 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 506 places, 566 transitions, 12117 flow [2021-03-25 09:35:13,988 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 506 places, 566 transitions, 12117 flow [2021-03-25 09:35:14,224 INFO L129 PetriNetUnfolder]: 520/1244 cut-off events. [2021-03-25 09:35:14,224 INFO L130 PetriNetUnfolder]: For 58839/58842 co-relation queries the response was YES. [2021-03-25 09:35:14,243 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12262 conditions, 1244 events. 520/1244 cut-off events. For 58839/58842 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 8563 event pairs, 10 based on Foata normal form. 1/1080 useless extension candidates. Maximal degree in co-relation 12037. Up to 250 conditions per place. [2021-03-25 09:35:14,262 INFO L142 LiptonReduction]: Number of co-enabled transitions 2302 [2021-03-25 09:35:14,299 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:35:14,299 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:35:14,300 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 316 [2021-03-25 09:35:14,300 INFO L480 AbstractCegarLoop]: Abstraction has has 506 places, 566 transitions, 12117 flow [2021-03-25 09:35:14,300 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.1) internal successors, (491), 10 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:14,300 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:35:14,300 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:35:14,300 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2021-03-25 09:35:14,300 INFO L428 AbstractCegarLoop]: === Iteration 222 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:35:14,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:35:14,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1551934808, now seen corresponding path program 1 times [2021-03-25 09:35:14,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:35:14,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888405608] [2021-03-25 09:35:14,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:35:14,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:35:14,307 INFO L142 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-03-25 09:35:14,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:35:14,312 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 09:35:14,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:35:14,318 INFO L142 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size [2021-03-25 09:35:14,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:14,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:14,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:14,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:14,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:14,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:14,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:14,358 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:35:14,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:35:14,372 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:35:14,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:35:14,386 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:35:14,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:14,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:35:14,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888405608] [2021-03-25 09:35:14,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:35:14,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:35:14,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066029482] [2021-03-25 09:35:14,395 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:35:14,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:35:14,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:35:14,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:35:14,395 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 155 [2021-03-25 09:35:14,396 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 506 places, 566 transitions, 12117 flow. Second operand has 10 states, 10 states have (on average 49.1) internal successors, (491), 10 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:14,396 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:35:14,396 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 155 [2021-03-25 09:35:14,396 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:35:15,150 INFO L129 PetriNetUnfolder]: 564/1317 cut-off events. [2021-03-25 09:35:15,150 INFO L130 PetriNetUnfolder]: For 60052/60056 co-relation queries the response was YES. [2021-03-25 09:35:15,170 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13681 conditions, 1317 events. 564/1317 cut-off events. For 60052/60056 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 8943 event pairs, 12 based on Foata normal form. 5/1155 useless extension candidates. Maximal degree in co-relation 13436. Up to 782 conditions per place. [2021-03-25 09:35:15,177 INFO L132 encePairwiseOnDemand]: 135/155 looper letters, 511 selfloop transitions, 51 changer transitions 0/580 dead transitions. [2021-03-25 09:35:15,177 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 516 places, 580 transitions, 13502 flow [2021-03-25 09:35:15,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:35:15,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:35:15,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 600 transitions. [2021-03-25 09:35:15,178 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3519061583577713 [2021-03-25 09:35:15,178 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 600 transitions. [2021-03-25 09:35:15,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 600 transitions. [2021-03-25 09:35:15,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:35:15,178 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 600 transitions. [2021-03-25 09:35:15,179 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 54.54545454545455) internal successors, (600), 11 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:15,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 155.0) internal successors, (1860), 12 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:15,179 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 155.0) internal successors, (1860), 12 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:15,179 INFO L185 Difference]: Start difference. First operand has 506 places, 566 transitions, 12117 flow. Second operand 11 states and 600 transitions. [2021-03-25 09:35:15,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 516 places, 580 transitions, 13502 flow [2021-03-25 09:35:15,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 506 places, 580 transitions, 13351 flow, removed 1 selfloop flow, removed 10 redundant places. [2021-03-25 09:35:15,701 INFO L241 Difference]: Finished difference. Result has 510 places, 571 transitions, 12297 flow [2021-03-25 09:35:15,702 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=11972, PETRI_DIFFERENCE_MINUEND_PLACES=496, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=566, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=515, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=12297, PETRI_PLACES=510, PETRI_TRANSITIONS=571} [2021-03-25 09:35:15,702 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 449 predicate places. [2021-03-25 09:35:15,702 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:35:15,702 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 510 places, 571 transitions, 12297 flow [2021-03-25 09:35:15,702 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 510 places, 571 transitions, 12297 flow [2021-03-25 09:35:15,706 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 510 places, 571 transitions, 12297 flow [2021-03-25 09:35:15,939 INFO L129 PetriNetUnfolder]: 509/1230 cut-off events. [2021-03-25 09:35:15,939 INFO L130 PetriNetUnfolder]: For 61836/61840 co-relation queries the response was YES. [2021-03-25 09:35:15,958 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12226 conditions, 1230 events. 509/1230 cut-off events. For 61836/61840 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 8545 event pairs, 9 based on Foata normal form. 2/1074 useless extension candidates. Maximal degree in co-relation 11998. Up to 248 conditions per place. [2021-03-25 09:35:15,975 INFO L142 LiptonReduction]: Number of co-enabled transitions 2352 [2021-03-25 09:35:16,081 INFO L154 LiptonReduction]: Checked pairs total: 5 [2021-03-25 09:35:16,081 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:35:16,081 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 379 [2021-03-25 09:35:16,093 INFO L480 AbstractCegarLoop]: Abstraction has has 509 places, 570 transitions, 12285 flow [2021-03-25 09:35:16,094 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.1) internal successors, (491), 10 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:16,094 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:35:16,094 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:35:16,094 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2021-03-25 09:35:16,094 INFO L428 AbstractCegarLoop]: === Iteration 223 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:35:16,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:35:16,094 INFO L82 PathProgramCache]: Analyzing trace with hash 1988117810, now seen corresponding path program 2 times [2021-03-25 09:35:16,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:35:16,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728867717] [2021-03-25 09:35:16,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:35:16,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:35:16,102 INFO L142 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-03-25 09:35:16,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:35:16,106 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 09:35:16,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:35:16,112 INFO L142 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size [2021-03-25 09:35:16,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:16,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:16,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:16,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:16,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:16,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:16,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:16,153 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:35:16,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:35:16,166 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:35:16,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:35:16,180 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:35:16,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:16,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:35:16,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728867717] [2021-03-25 09:35:16,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:35:16,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:35:16,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732383323] [2021-03-25 09:35:16,183 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:35:16,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:35:16,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:35:16,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:35:16,183 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 156 [2021-03-25 09:35:16,184 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 509 places, 570 transitions, 12285 flow. Second operand has 10 states, 10 states have (on average 49.1) internal successors, (491), 10 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:16,184 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:35:16,184 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 156 [2021-03-25 09:35:16,184 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:35:17,002 INFO L129 PetriNetUnfolder]: 579/1359 cut-off events. [2021-03-25 09:35:17,002 INFO L130 PetriNetUnfolder]: For 70248/70261 co-relation queries the response was YES. [2021-03-25 09:35:17,026 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14364 conditions, 1359 events. 579/1359 cut-off events. For 70248/70261 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 9322 event pairs, 5 based on Foata normal form. 14/1197 useless extension candidates. Maximal degree in co-relation 14116. Up to 745 conditions per place. [2021-03-25 09:35:17,032 INFO L132 encePairwiseOnDemand]: 136/156 looper letters, 501 selfloop transitions, 86 changer transitions 0/605 dead transitions. [2021-03-25 09:35:17,032 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 519 places, 605 transitions, 14659 flow [2021-03-25 09:35:17,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:35:17,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:35:17,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 616 transitions. [2021-03-25 09:35:17,033 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.358974358974359 [2021-03-25 09:35:17,033 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 616 transitions. [2021-03-25 09:35:17,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 616 transitions. [2021-03-25 09:35:17,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:35:17,034 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 616 transitions. [2021-03-25 09:35:17,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 56.0) internal successors, (616), 11 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:17,035 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 156.0) internal successors, (1872), 12 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:17,035 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 156.0) internal successors, (1872), 12 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:17,035 INFO L185 Difference]: Start difference. First operand has 509 places, 570 transitions, 12285 flow. Second operand 11 states and 616 transitions. [2021-03-25 09:35:17,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 519 places, 605 transitions, 14659 flow [2021-03-25 09:35:17,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 512 places, 605 transitions, 14464 flow, removed 59 selfloop flow, removed 7 redundant places. [2021-03-25 09:35:17,671 INFO L241 Difference]: Finished difference. Result has 516 places, 590 transitions, 13365 flow [2021-03-25 09:35:17,671 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=12096, PETRI_DIFFERENCE_MINUEND_PLACES=502, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=570, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=492, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=13365, PETRI_PLACES=516, PETRI_TRANSITIONS=590} [2021-03-25 09:35:17,671 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 455 predicate places. [2021-03-25 09:35:17,671 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:35:17,671 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 516 places, 590 transitions, 13365 flow [2021-03-25 09:35:17,671 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 516 places, 590 transitions, 13365 flow [2021-03-25 09:35:17,676 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 516 places, 590 transitions, 13365 flow [2021-03-25 09:35:17,939 INFO L129 PetriNetUnfolder]: 523/1266 cut-off events. [2021-03-25 09:35:17,939 INFO L130 PetriNetUnfolder]: For 67611/67616 co-relation queries the response was YES. [2021-03-25 09:35:17,960 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13034 conditions, 1266 events. 523/1266 cut-off events. For 67611/67616 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 8942 event pairs, 10 based on Foata normal form. 3/1104 useless extension candidates. Maximal degree in co-relation 12803. Up to 258 conditions per place. [2021-03-25 09:35:17,978 INFO L142 LiptonReduction]: Number of co-enabled transitions 2510 [2021-03-25 09:35:18,093 INFO L154 LiptonReduction]: Checked pairs total: 5 [2021-03-25 09:35:18,093 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:35:18,103 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 422 [2021-03-25 09:35:18,104 INFO L480 AbstractCegarLoop]: Abstraction has has 516 places, 590 transitions, 13440 flow [2021-03-25 09:35:18,104 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.1) internal successors, (491), 10 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:18,104 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:35:18,104 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:35:18,104 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2021-03-25 09:35:18,104 INFO L428 AbstractCegarLoop]: === Iteration 224 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:35:18,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:35:18,104 INFO L82 PathProgramCache]: Analyzing trace with hash 244401040, now seen corresponding path program 1 times [2021-03-25 09:35:18,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:35:18,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25790623] [2021-03-25 09:35:18,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:35:18,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:35:18,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:18,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:35:18,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:18,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:35:18,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:18,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:18,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:18,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:18,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:18,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:18,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:18,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:18,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:18,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:18,161 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:35:18,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:35:18,173 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:35:18,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:35:18,186 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:35:18,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:18,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:35:18,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25790623] [2021-03-25 09:35:18,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:35:18,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:35:18,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208713749] [2021-03-25 09:35:18,189 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:35:18,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:35:18,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:35:18,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:35:18,189 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 157 [2021-03-25 09:35:18,190 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 516 places, 590 transitions, 13440 flow. Second operand has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:18,190 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:35:18,190 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 157 [2021-03-25 09:35:18,190 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:35:19,085 INFO L129 PetriNetUnfolder]: 594/1428 cut-off events. [2021-03-25 09:35:19,086 INFO L130 PetriNetUnfolder]: For 77091/77095 co-relation queries the response was YES. [2021-03-25 09:35:19,106 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15033 conditions, 1428 events. 594/1428 cut-off events. For 77091/77095 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 10137 event pairs, 5 based on Foata normal form. 6/1244 useless extension candidates. Maximal degree in co-relation 14782. Up to 770 conditions per place. [2021-03-25 09:35:19,113 INFO L132 encePairwiseOnDemand]: 136/157 looper letters, 523 selfloop transitions, 79 changer transitions 0/620 dead transitions. [2021-03-25 09:35:19,113 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 526 places, 620 transitions, 15485 flow [2021-03-25 09:35:19,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:35:19,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:35:19,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 619 transitions. [2021-03-25 09:35:19,114 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3584250144759699 [2021-03-25 09:35:19,114 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 619 transitions. [2021-03-25 09:35:19,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 619 transitions. [2021-03-25 09:35:19,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:35:19,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 619 transitions. [2021-03-25 09:35:19,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 56.27272727272727) internal successors, (619), 11 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:19,115 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 157.0) internal successors, (1884), 12 states have internal predecessors, (1884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:19,115 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 157.0) internal successors, (1884), 12 states have internal predecessors, (1884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:19,115 INFO L185 Difference]: Start difference. First operand has 516 places, 590 transitions, 13440 flow. Second operand 11 states and 619 transitions. [2021-03-25 09:35:19,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 526 places, 620 transitions, 15485 flow [2021-03-25 09:35:19,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 523 places, 620 transitions, 14420 flow, removed 519 selfloop flow, removed 3 redundant places. [2021-03-25 09:35:19,816 INFO L241 Difference]: Finished difference. Result has 531 places, 605 transitions, 13310 flow [2021-03-25 09:35:19,816 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=12571, PETRI_DIFFERENCE_MINUEND_PLACES=513, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=590, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=512, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=13310, PETRI_PLACES=531, PETRI_TRANSITIONS=605} [2021-03-25 09:35:19,816 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 470 predicate places. [2021-03-25 09:35:19,816 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:35:19,816 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 531 places, 605 transitions, 13310 flow [2021-03-25 09:35:19,816 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 531 places, 605 transitions, 13310 flow [2021-03-25 09:35:19,821 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 531 places, 605 transitions, 13310 flow [2021-03-25 09:35:20,095 INFO L129 PetriNetUnfolder]: 537/1342 cut-off events. [2021-03-25 09:35:20,095 INFO L130 PetriNetUnfolder]: For 67058/67063 co-relation queries the response was YES. [2021-03-25 09:35:20,118 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13070 conditions, 1342 events. 537/1342 cut-off events. For 67058/67063 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 9820 event pairs, 7 based on Foata normal form. 3/1161 useless extension candidates. Maximal degree in co-relation 12830. Up to 250 conditions per place. [2021-03-25 09:35:20,138 INFO L142 LiptonReduction]: Number of co-enabled transitions 2660 [2021-03-25 09:35:20,180 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:35:20,180 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:35:20,180 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 364 [2021-03-25 09:35:20,180 INFO L480 AbstractCegarLoop]: Abstraction has has 531 places, 605 transitions, 13310 flow [2021-03-25 09:35:20,180 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:20,180 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:35:20,180 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:35:20,180 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2021-03-25 09:35:20,180 INFO L428 AbstractCegarLoop]: === Iteration 225 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:35:20,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:35:20,181 INFO L82 PathProgramCache]: Analyzing trace with hash 2051145256, now seen corresponding path program 1 times [2021-03-25 09:35:20,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:35:20,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752397648] [2021-03-25 09:35:20,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:35:20,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:35:20,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:20,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:35:20,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:20,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:35:20,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:20,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:20,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:20,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:20,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:20,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:20,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:20,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:20,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:20,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:20,236 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:35:20,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:35:20,249 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:35:20,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:35:20,263 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:35:20,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:20,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:35:20,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752397648] [2021-03-25 09:35:20,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:35:20,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:35:20,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615084255] [2021-03-25 09:35:20,266 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:35:20,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:35:20,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:35:20,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:35:20,266 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 157 [2021-03-25 09:35:20,267 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 531 places, 605 transitions, 13310 flow. Second operand has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:20,267 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:35:20,267 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 157 [2021-03-25 09:35:20,267 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:35:21,054 INFO L129 PetriNetUnfolder]: 597/1443 cut-off events. [2021-03-25 09:35:21,055 INFO L130 PetriNetUnfolder]: For 68754/68758 co-relation queries the response was YES. [2021-03-25 09:35:21,077 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14724 conditions, 1443 events. 597/1443 cut-off events. For 68754/68758 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 10346 event pairs, 6 based on Foata normal form. 5/1254 useless extension candidates. Maximal degree in co-relation 14464. Up to 787 conditions per place. [2021-03-25 09:35:21,083 INFO L132 encePairwiseOnDemand]: 138/157 looper letters, 531 selfloop transitions, 72 changer transitions 0/621 dead transitions. [2021-03-25 09:35:21,083 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 541 places, 621 transitions, 14846 flow [2021-03-25 09:35:21,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:35:21,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:35:21,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 608 transitions. [2021-03-25 09:35:21,085 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3520555877243775 [2021-03-25 09:35:21,085 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 608 transitions. [2021-03-25 09:35:21,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 608 transitions. [2021-03-25 09:35:21,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:35:21,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 608 transitions. [2021-03-25 09:35:21,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 55.27272727272727) internal successors, (608), 11 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:21,086 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 157.0) internal successors, (1884), 12 states have internal predecessors, (1884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:21,086 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 157.0) internal successors, (1884), 12 states have internal predecessors, (1884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:21,086 INFO L185 Difference]: Start difference. First operand has 531 places, 605 transitions, 13310 flow. Second operand 11 states and 608 transitions. [2021-03-25 09:35:21,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 541 places, 621 transitions, 14846 flow [2021-03-25 09:35:21,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 538 places, 621 transitions, 14558 flow, removed 129 selfloop flow, removed 3 redundant places. [2021-03-25 09:35:21,738 INFO L241 Difference]: Finished difference. Result has 542 places, 609 transitions, 13431 flow [2021-03-25 09:35:21,738 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=13022, PETRI_DIFFERENCE_MINUEND_PLACES=528, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=605, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=533, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=13431, PETRI_PLACES=542, PETRI_TRANSITIONS=609} [2021-03-25 09:35:21,739 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 481 predicate places. [2021-03-25 09:35:21,739 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:35:21,739 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 542 places, 609 transitions, 13431 flow [2021-03-25 09:35:21,739 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 542 places, 609 transitions, 13431 flow [2021-03-25 09:35:21,743 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 542 places, 609 transitions, 13431 flow [2021-03-25 09:35:22,029 INFO L129 PetriNetUnfolder]: 540/1353 cut-off events. [2021-03-25 09:35:22,029 INFO L130 PetriNetUnfolder]: For 67632/67637 co-relation queries the response was YES. [2021-03-25 09:35:22,053 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13229 conditions, 1353 events. 540/1353 cut-off events. For 67632/67637 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 9982 event pairs, 7 based on Foata normal form. 3/1169 useless extension candidates. Maximal degree in co-relation 12985. Up to 250 conditions per place. [2021-03-25 09:35:22,074 INFO L142 LiptonReduction]: Number of co-enabled transitions 2700 [2021-03-25 09:35:22,189 INFO L154 LiptonReduction]: Checked pairs total: 5 [2021-03-25 09:35:22,189 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:35:22,189 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 450 [2021-03-25 09:35:22,189 INFO L480 AbstractCegarLoop]: Abstraction has has 541 places, 608 transitions, 13419 flow [2021-03-25 09:35:22,189 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:22,190 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:35:22,190 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:35:22,190 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2021-03-25 09:35:22,190 INFO L428 AbstractCegarLoop]: === Iteration 226 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:35:22,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:35:22,190 INFO L82 PathProgramCache]: Analyzing trace with hash 593007773, now seen corresponding path program 1 times [2021-03-25 09:35:22,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:35:22,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175031890] [2021-03-25 09:35:22,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:35:22,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:35:22,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:22,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:35:22,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:22,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:35:22,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:22,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:22,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:22,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:22,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:22,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:22,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:22,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:22,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:22,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:22,290 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:35:22,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:35:22,293 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:35:22,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:35:22,307 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:35:22,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:22,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:35:22,309 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175031890] [2021-03-25 09:35:22,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:35:22,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:35:22,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266145981] [2021-03-25 09:35:22,309 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:35:22,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:35:22,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:35:22,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:35:22,310 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 158 [2021-03-25 09:35:22,310 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 541 places, 608 transitions, 13419 flow. Second operand has 9 states, 9 states have (on average 49.333333333333336) internal successors, (444), 9 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:22,310 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:35:22,310 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 158 [2021-03-25 09:35:22,310 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:35:23,181 INFO L129 PetriNetUnfolder]: 599/1453 cut-off events. [2021-03-25 09:35:23,181 INFO L130 PetriNetUnfolder]: For 70607/70622 co-relation queries the response was YES. [2021-03-25 09:35:23,203 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14832 conditions, 1453 events. 599/1453 cut-off events. For 70607/70622 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 10409 event pairs, 5 based on Foata normal form. 16/1272 useless extension candidates. Maximal degree in co-relation 14568. Up to 775 conditions per place. [2021-03-25 09:35:23,209 INFO L132 encePairwiseOnDemand]: 137/158 looper letters, 524 selfloop transitions, 81 changer transitions 0/623 dead transitions. [2021-03-25 09:35:23,209 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 549 places, 623 transitions, 14931 flow [2021-03-25 09:35:23,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 09:35:23,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 09:35:23,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 519 transitions. [2021-03-25 09:35:23,210 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3649789029535865 [2021-03-25 09:35:23,210 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 519 transitions. [2021-03-25 09:35:23,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 519 transitions. [2021-03-25 09:35:23,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:35:23,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 519 transitions. [2021-03-25 09:35:23,210 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 57.666666666666664) internal successors, (519), 9 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:23,211 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 158.0) internal successors, (1580), 10 states have internal predecessors, (1580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:23,211 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 158.0) internal successors, (1580), 10 states have internal predecessors, (1580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:23,211 INFO L185 Difference]: Start difference. First operand has 541 places, 608 transitions, 13419 flow. Second operand 9 states and 519 transitions. [2021-03-25 09:35:23,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 549 places, 623 transitions, 14931 flow [2021-03-25 09:35:23,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 542 places, 623 transitions, 14678 flow, removed 73 selfloop flow, removed 7 redundant places. [2021-03-25 09:35:23,872 INFO L241 Difference]: Finished difference. Result has 545 places, 610 transitions, 13487 flow [2021-03-25 09:35:23,873 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=13166, PETRI_DIFFERENCE_MINUEND_PLACES=534, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=608, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=527, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=13487, PETRI_PLACES=545, PETRI_TRANSITIONS=610} [2021-03-25 09:35:23,873 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 484 predicate places. [2021-03-25 09:35:23,873 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:35:23,873 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 545 places, 610 transitions, 13487 flow [2021-03-25 09:35:23,873 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 545 places, 610 transitions, 13487 flow [2021-03-25 09:35:23,877 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 545 places, 610 transitions, 13487 flow [2021-03-25 09:35:24,159 INFO L129 PetriNetUnfolder]: 547/1377 cut-off events. [2021-03-25 09:35:24,159 INFO L130 PetriNetUnfolder]: For 66280/66283 co-relation queries the response was YES. [2021-03-25 09:35:24,183 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13420 conditions, 1377 events. 547/1377 cut-off events. For 66280/66283 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 10172 event pairs, 8 based on Foata normal form. 1/1185 useless extension candidates. Maximal degree in co-relation 13174. Up to 251 conditions per place. [2021-03-25 09:35:24,204 INFO L142 LiptonReduction]: Number of co-enabled transitions 2716 [2021-03-25 09:35:24,245 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:35:24,246 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:35:24,246 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 373 [2021-03-25 09:35:24,246 INFO L480 AbstractCegarLoop]: Abstraction has has 545 places, 610 transitions, 13487 flow [2021-03-25 09:35:24,246 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 49.333333333333336) internal successors, (444), 9 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:24,246 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:35:24,246 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:35:24,246 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2021-03-25 09:35:24,246 INFO L428 AbstractCegarLoop]: === Iteration 227 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:35:24,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:35:24,246 INFO L82 PathProgramCache]: Analyzing trace with hash 29477165, now seen corresponding path program 1 times [2021-03-25 09:35:24,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:35:24,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389024109] [2021-03-25 09:35:24,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:35:24,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:35:24,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:24,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:35:24,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:24,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:35:24,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:24,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:24,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:24,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:24,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:24,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:24,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:24,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:24,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:24,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:24,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:24,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:24,343 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:35:24,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:35:24,358 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:35:24,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:24,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:35:24,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389024109] [2021-03-25 09:35:24,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:35:24,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:35:24,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763935520] [2021-03-25 09:35:24,360 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:35:24,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:35:24,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:35:24,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:35:24,361 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 158 [2021-03-25 09:35:24,361 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 545 places, 610 transitions, 13487 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:24,361 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:35:24,361 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 158 [2021-03-25 09:35:24,361 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:35:25,140 INFO L129 PetriNetUnfolder]: 601/1459 cut-off events. [2021-03-25 09:35:25,141 INFO L130 PetriNetUnfolder]: For 68189/68202 co-relation queries the response was YES. [2021-03-25 09:35:25,168 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14813 conditions, 1459 events. 601/1459 cut-off events. For 68189/68202 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 10490 event pairs, 9 based on Foata normal form. 14/1274 useless extension candidates. Maximal degree in co-relation 14547. Up to 825 conditions per place. [2021-03-25 09:35:25,175 INFO L132 encePairwiseOnDemand]: 141/158 looper letters, 549 selfloop transitions, 51 changer transitions 0/618 dead transitions. [2021-03-25 09:35:25,175 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 557 places, 618 transitions, 14751 flow [2021-03-25 09:35:25,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:35:25,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:35:25,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 697 transitions. [2021-03-25 09:35:25,176 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3393378773125609 [2021-03-25 09:35:25,176 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 697 transitions. [2021-03-25 09:35:25,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 697 transitions. [2021-03-25 09:35:25,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:35:25,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 697 transitions. [2021-03-25 09:35:25,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 53.61538461538461) internal successors, (697), 13 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:25,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 158.0) internal successors, (2212), 14 states have internal predecessors, (2212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:25,178 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 158.0) internal successors, (2212), 14 states have internal predecessors, (2212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:25,178 INFO L185 Difference]: Start difference. First operand has 545 places, 610 transitions, 13487 flow. Second operand 13 states and 697 transitions. [2021-03-25 09:35:25,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 557 places, 618 transitions, 14751 flow [2021-03-25 09:35:25,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 555 places, 618 transitions, 14643 flow, removed 28 selfloop flow, removed 2 redundant places. [2021-03-25 09:35:25,869 INFO L241 Difference]: Finished difference. Result has 556 places, 610 transitions, 13493 flow [2021-03-25 09:35:25,870 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=13379, PETRI_DIFFERENCE_MINUEND_PLACES=543, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=610, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=559, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=13493, PETRI_PLACES=556, PETRI_TRANSITIONS=610} [2021-03-25 09:35:25,870 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 495 predicate places. [2021-03-25 09:35:25,870 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:35:25,870 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 556 places, 610 transitions, 13493 flow [2021-03-25 09:35:25,870 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 556 places, 610 transitions, 13493 flow [2021-03-25 09:35:25,875 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 556 places, 610 transitions, 13493 flow [2021-03-25 09:35:26,158 INFO L129 PetriNetUnfolder]: 541/1364 cut-off events. [2021-03-25 09:35:26,158 INFO L130 PetriNetUnfolder]: For 66941/66944 co-relation queries the response was YES. [2021-03-25 09:35:26,181 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13357 conditions, 1364 events. 541/1364 cut-off events. For 66941/66944 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 10068 event pairs, 8 based on Foata normal form. 1/1178 useless extension candidates. Maximal degree in co-relation 13110. Up to 250 conditions per place. [2021-03-25 09:35:26,201 INFO L142 LiptonReduction]: Number of co-enabled transitions 2716 [2021-03-25 09:35:26,244 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:35:26,244 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:35:26,245 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 375 [2021-03-25 09:35:26,245 INFO L480 AbstractCegarLoop]: Abstraction has has 556 places, 610 transitions, 13493 flow [2021-03-25 09:35:26,245 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:26,245 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:35:26,245 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:35:26,245 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2021-03-25 09:35:26,245 INFO L428 AbstractCegarLoop]: === Iteration 228 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:35:26,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:35:26,245 INFO L82 PathProgramCache]: Analyzing trace with hash 1340677042, now seen corresponding path program 1 times [2021-03-25 09:35:26,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:35:26,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591527822] [2021-03-25 09:35:26,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:35:26,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:35:26,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:26,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:35:26,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:26,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:35:26,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:26,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:26,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:26,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:26,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:26,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:26,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:26,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:26,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:26,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:26,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:26,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:26,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:26,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:26,318 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:35:26,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:35:26,322 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:35:26,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:26,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:35:26,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591527822] [2021-03-25 09:35:26,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:35:26,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:35:26,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962071532] [2021-03-25 09:35:26,325 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:35:26,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:35:26,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:35:26,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:35:26,325 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 158 [2021-03-25 09:35:26,325 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 556 places, 610 transitions, 13493 flow. Second operand has 9 states, 9 states have (on average 49.44444444444444) internal successors, (445), 9 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:26,325 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:35:26,325 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 158 [2021-03-25 09:35:26,326 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:35:27,123 INFO L129 PetriNetUnfolder]: 603/1467 cut-off events. [2021-03-25 09:35:27,123 INFO L130 PetriNetUnfolder]: For 68917/68932 co-relation queries the response was YES. [2021-03-25 09:35:27,147 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14881 conditions, 1467 events. 603/1467 cut-off events. For 68917/68932 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 10563 event pairs, 5 based on Foata normal form. 16/1283 useless extension candidates. Maximal degree in co-relation 14614. Up to 798 conditions per place. [2021-03-25 09:35:27,153 INFO L132 encePairwiseOnDemand]: 139/158 looper letters, 539 selfloop transitions, 68 changer transitions 0/625 dead transitions. [2021-03-25 09:35:27,154 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 565 places, 625 transitions, 15035 flow [2021-03-25 09:35:27,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:35:27,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:35:27,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 565 transitions. [2021-03-25 09:35:27,156 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3575949367088608 [2021-03-25 09:35:27,156 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 565 transitions. [2021-03-25 09:35:27,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 565 transitions. [2021-03-25 09:35:27,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:35:27,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 565 transitions. [2021-03-25 09:35:27,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 56.5) internal successors, (565), 10 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:27,157 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 158.0) internal successors, (1738), 11 states have internal predecessors, (1738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:27,157 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 158.0) internal successors, (1738), 11 states have internal predecessors, (1738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:27,157 INFO L185 Difference]: Start difference. First operand has 556 places, 610 transitions, 13493 flow. Second operand 10 states and 565 transitions. [2021-03-25 09:35:27,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 565 places, 625 transitions, 15035 flow [2021-03-25 09:35:27,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 553 places, 625 transitions, 14933 flow, removed 0 selfloop flow, removed 12 redundant places. [2021-03-25 09:35:27,851 INFO L241 Difference]: Finished difference. Result has 556 places, 614 transitions, 13802 flow [2021-03-25 09:35:27,851 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=13391, PETRI_DIFFERENCE_MINUEND_PLACES=544, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=610, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=544, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=13802, PETRI_PLACES=556, PETRI_TRANSITIONS=614} [2021-03-25 09:35:27,852 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 495 predicate places. [2021-03-25 09:35:27,852 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:35:27,852 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 556 places, 614 transitions, 13802 flow [2021-03-25 09:35:27,852 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 556 places, 614 transitions, 13802 flow [2021-03-25 09:35:27,857 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 556 places, 614 transitions, 13802 flow [2021-03-25 09:35:28,149 INFO L129 PetriNetUnfolder]: 537/1354 cut-off events. [2021-03-25 09:35:28,149 INFO L130 PetriNetUnfolder]: For 68746/68833 co-relation queries the response was YES. [2021-03-25 09:35:28,174 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13333 conditions, 1354 events. 537/1354 cut-off events. For 68746/68833 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 10009 event pairs, 8 based on Foata normal form. 12/1178 useless extension candidates. Maximal degree in co-relation 13083. Up to 250 conditions per place. [2021-03-25 09:35:28,196 INFO L142 LiptonReduction]: Number of co-enabled transitions 2760 [2021-03-25 09:35:28,322 INFO L154 LiptonReduction]: Checked pairs total: 5 [2021-03-25 09:35:28,322 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:35:28,322 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 470 [2021-03-25 09:35:28,323 INFO L480 AbstractCegarLoop]: Abstraction has has 556 places, 614 transitions, 13883 flow [2021-03-25 09:35:28,323 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 49.44444444444444) internal successors, (445), 9 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:28,323 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:35:28,323 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:35:28,323 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2021-03-25 09:35:28,323 INFO L428 AbstractCegarLoop]: === Iteration 229 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:35:28,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:35:28,324 INFO L82 PathProgramCache]: Analyzing trace with hash -126275282, now seen corresponding path program 2 times [2021-03-25 09:35:28,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:35:28,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852191732] [2021-03-25 09:35:28,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:35:28,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:35:28,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:28,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:35:28,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:28,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:35:28,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:28,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:35:28,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:28,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:28,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:28,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:28,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:28,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:28,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:28,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:28,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:28,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:28,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:28,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:28,395 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:35:28,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:35:28,408 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:35:28,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:28,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:35:28,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852191732] [2021-03-25 09:35:28,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:35:28,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:35:28,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125534239] [2021-03-25 09:35:28,411 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:35:28,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:35:28,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:35:28,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:35:28,412 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 159 [2021-03-25 09:35:28,413 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 556 places, 614 transitions, 13883 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:28,413 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:35:28,413 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 159 [2021-03-25 09:35:28,413 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:35:29,311 INFO L129 PetriNetUnfolder]: 608/1479 cut-off events. [2021-03-25 09:35:29,311 INFO L130 PetriNetUnfolder]: For 70847/70851 co-relation queries the response was YES. [2021-03-25 09:35:29,335 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15179 conditions, 1479 events. 608/1479 cut-off events. For 70847/70851 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 10675 event pairs, 4 based on Foata normal form. 5/1281 useless extension candidates. Maximal degree in co-relation 14909. Up to 831 conditions per place. [2021-03-25 09:35:29,341 INFO L132 encePairwiseOnDemand]: 142/159 looper letters, 559 selfloop transitions, 59 changer transitions 0/636 dead transitions. [2021-03-25 09:35:29,341 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 569 places, 636 transitions, 15505 flow [2021-03-25 09:35:29,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:35:29,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:35:29,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 765 transitions. [2021-03-25 09:35:29,342 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3436657681940701 [2021-03-25 09:35:29,342 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 765 transitions. [2021-03-25 09:35:29,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 765 transitions. [2021-03-25 09:35:29,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:35:29,342 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 765 transitions. [2021-03-25 09:35:29,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 54.642857142857146) internal successors, (765), 14 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:29,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 159.0) internal successors, (2385), 15 states have internal predecessors, (2385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:29,344 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 159.0) internal successors, (2385), 15 states have internal predecessors, (2385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:29,344 INFO L185 Difference]: Start difference. First operand has 556 places, 614 transitions, 13883 flow. Second operand 14 states and 765 transitions. [2021-03-25 09:35:29,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 569 places, 636 transitions, 15505 flow [2021-03-25 09:35:30,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 564 places, 636 transitions, 15129 flow, removed 131 selfloop flow, removed 5 redundant places. [2021-03-25 09:35:30,039 INFO L241 Difference]: Finished difference. Result has 567 places, 622 transitions, 13946 flow [2021-03-25 09:35:30,039 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=13507, PETRI_DIFFERENCE_MINUEND_PLACES=551, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=614, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=555, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=13946, PETRI_PLACES=567, PETRI_TRANSITIONS=622} [2021-03-25 09:35:30,040 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 506 predicate places. [2021-03-25 09:35:30,040 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:35:30,040 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 567 places, 622 transitions, 13946 flow [2021-03-25 09:35:30,040 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 567 places, 622 transitions, 13946 flow [2021-03-25 09:35:30,045 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 567 places, 622 transitions, 13946 flow [2021-03-25 09:35:30,339 INFO L129 PetriNetUnfolder]: 542/1369 cut-off events. [2021-03-25 09:35:30,339 INFO L130 PetriNetUnfolder]: For 66767/66853 co-relation queries the response was YES. [2021-03-25 09:35:30,365 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13413 conditions, 1369 events. 542/1369 cut-off events. For 66767/66853 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 10187 event pairs, 11 based on Foata normal form. 11/1190 useless extension candidates. Maximal degree in co-relation 13144. Up to 252 conditions per place. [2021-03-25 09:35:30,429 INFO L142 LiptonReduction]: Number of co-enabled transitions 2800 [2021-03-25 09:35:30,472 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:35:30,472 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:35:30,472 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 432 [2021-03-25 09:35:30,472 INFO L480 AbstractCegarLoop]: Abstraction has has 567 places, 622 transitions, 13946 flow [2021-03-25 09:35:30,472 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:30,472 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:35:30,472 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:35:30,472 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2021-03-25 09:35:30,472 INFO L428 AbstractCegarLoop]: === Iteration 230 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:35:30,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:35:30,473 INFO L82 PathProgramCache]: Analyzing trace with hash -1002790602, now seen corresponding path program 3 times [2021-03-25 09:35:30,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:35:30,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296228394] [2021-03-25 09:35:30,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:35:30,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:35:30,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:30,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:35:30,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:30,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:35:30,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:30,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:35:30,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:30,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:30,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:30,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:30,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:30,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:30,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:30,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:30,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:30,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:30,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:30,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:30,553 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:35:30,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:35:30,570 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:35:30,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:30,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:35:30,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296228394] [2021-03-25 09:35:30,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:35:30,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:35:30,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110234965] [2021-03-25 09:35:30,573 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:35:30,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:35:30,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:35:30,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:35:30,574 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 159 [2021-03-25 09:35:30,574 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 567 places, 622 transitions, 13946 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:30,574 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:35:30,574 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 159 [2021-03-25 09:35:30,574 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:35:31,520 INFO L129 PetriNetUnfolder]: 611/1495 cut-off events. [2021-03-25 09:35:31,520 INFO L130 PetriNetUnfolder]: For 70383/70387 co-relation queries the response was YES. [2021-03-25 09:35:31,548 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15198 conditions, 1495 events. 611/1495 cut-off events. For 70383/70387 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 10884 event pairs, 3 based on Foata normal form. 5/1295 useless extension candidates. Maximal degree in co-relation 14925. Up to 810 conditions per place. [2021-03-25 09:35:31,555 INFO L132 encePairwiseOnDemand]: 142/159 looper letters, 541 selfloop transitions, 82 changer transitions 0/641 dead transitions. [2021-03-25 09:35:31,555 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 581 places, 641 transitions, 15508 flow [2021-03-25 09:35:31,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 09:35:31,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 09:35:31,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 821 transitions. [2021-03-25 09:35:31,556 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.34423480083857444 [2021-03-25 09:35:31,556 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 821 transitions. [2021-03-25 09:35:31,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 821 transitions. [2021-03-25 09:35:31,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:35:31,556 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 821 transitions. [2021-03-25 09:35:31,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 54.733333333333334) internal successors, (821), 15 states have internal predecessors, (821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:31,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 159.0) internal successors, (2544), 16 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:31,558 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 159.0) internal successors, (2544), 16 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:31,558 INFO L185 Difference]: Start difference. First operand has 567 places, 622 transitions, 13946 flow. Second operand 15 states and 821 transitions. [2021-03-25 09:35:31,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 581 places, 641 transitions, 15508 flow [2021-03-25 09:35:32,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 572 places, 641 transitions, 15349 flow, removed 47 selfloop flow, removed 9 redundant places. [2021-03-25 09:35:32,303 INFO L241 Difference]: Finished difference. Result has 575 places, 626 transitions, 14215 flow [2021-03-25 09:35:32,303 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=13787, PETRI_DIFFERENCE_MINUEND_PLACES=558, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=622, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=540, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=14215, PETRI_PLACES=575, PETRI_TRANSITIONS=626} [2021-03-25 09:35:32,303 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 514 predicate places. [2021-03-25 09:35:32,303 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:35:32,303 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 575 places, 626 transitions, 14215 flow [2021-03-25 09:35:32,304 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 575 places, 626 transitions, 14215 flow [2021-03-25 09:35:32,309 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 575 places, 626 transitions, 14215 flow [2021-03-25 09:35:32,614 INFO L129 PetriNetUnfolder]: 558/1420 cut-off events. [2021-03-25 09:35:32,614 INFO L130 PetriNetUnfolder]: For 69325/69328 co-relation queries the response was YES. [2021-03-25 09:35:32,639 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13835 conditions, 1420 events. 558/1420 cut-off events. For 69325/69328 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 10621 event pairs, 8 based on Foata normal form. 1/1220 useless extension candidates. Maximal degree in co-relation 13563. Up to 258 conditions per place. [2021-03-25 09:35:32,660 INFO L142 LiptonReduction]: Number of co-enabled transitions 2856 [2021-03-25 09:35:32,705 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:35:32,705 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:35:32,705 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 402 [2021-03-25 09:35:32,705 INFO L480 AbstractCegarLoop]: Abstraction has has 575 places, 626 transitions, 14215 flow [2021-03-25 09:35:32,705 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:32,705 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:35:32,705 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:35:32,706 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2021-03-25 09:35:32,706 INFO L428 AbstractCegarLoop]: === Iteration 231 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:35:32,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:35:32,706 INFO L82 PathProgramCache]: Analyzing trace with hash 263947989, now seen corresponding path program 2 times [2021-03-25 09:35:32,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:35:32,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090345842] [2021-03-25 09:35:32,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:35:32,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:35:32,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:32,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:35:32,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:32,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:35:32,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:32,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:35:32,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:32,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:32,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:32,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:32,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:32,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:32,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:32,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:32,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:32,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:32,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:32,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:32,776 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:35:32,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:35:32,789 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:35:32,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:32,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:35:32,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090345842] [2021-03-25 09:35:32,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:35:32,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:35:32,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160206837] [2021-03-25 09:35:32,791 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:35:32,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:35:32,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:35:32,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:35:32,792 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 159 [2021-03-25 09:35:32,792 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 575 places, 626 transitions, 14215 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:32,792 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:35:32,792 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 159 [2021-03-25 09:35:32,792 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:35:33,701 INFO L129 PetriNetUnfolder]: 625/1539 cut-off events. [2021-03-25 09:35:33,701 INFO L130 PetriNetUnfolder]: For 71769/71771 co-relation queries the response was YES. [2021-03-25 09:35:33,728 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15465 conditions, 1539 events. 625/1539 cut-off events. For 71769/71771 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 11357 event pairs, 10 based on Foata normal form. 3/1327 useless extension candidates. Maximal degree in co-relation 15189. Up to 838 conditions per place. [2021-03-25 09:35:33,735 INFO L132 encePairwiseOnDemand]: 142/159 looper letters, 559 selfloop transitions, 73 changer transitions 0/650 dead transitions. [2021-03-25 09:35:33,735 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 587 places, 650 transitions, 15982 flow [2021-03-25 09:35:33,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:35:33,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:35:33,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 716 transitions. [2021-03-25 09:35:33,736 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3463957426221577 [2021-03-25 09:35:33,736 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 716 transitions. [2021-03-25 09:35:33,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 716 transitions. [2021-03-25 09:35:33,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:35:33,736 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 716 transitions. [2021-03-25 09:35:33,737 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 55.07692307692308) internal successors, (716), 13 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:33,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 159.0) internal successors, (2226), 14 states have internal predecessors, (2226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:33,737 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 159.0) internal successors, (2226), 14 states have internal predecessors, (2226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:33,737 INFO L185 Difference]: Start difference. First operand has 575 places, 626 transitions, 14215 flow. Second operand 13 states and 716 transitions. [2021-03-25 09:35:33,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 587 places, 650 transitions, 15982 flow [2021-03-25 09:35:34,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 576 places, 650 transitions, 15805 flow, removed 38 selfloop flow, removed 11 redundant places. [2021-03-25 09:35:34,538 INFO L241 Difference]: Finished difference. Result has 581 places, 638 transitions, 14650 flow [2021-03-25 09:35:34,539 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=14045, PETRI_DIFFERENCE_MINUEND_PLACES=564, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=626, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=557, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=14650, PETRI_PLACES=581, PETRI_TRANSITIONS=638} [2021-03-25 09:35:34,539 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 520 predicate places. [2021-03-25 09:35:34,539 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:35:34,539 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 581 places, 638 transitions, 14650 flow [2021-03-25 09:35:34,539 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 581 places, 638 transitions, 14650 flow [2021-03-25 09:35:34,544 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 581 places, 638 transitions, 14650 flow [2021-03-25 09:35:34,857 INFO L129 PetriNetUnfolder]: 567/1448 cut-off events. [2021-03-25 09:35:34,857 INFO L130 PetriNetUnfolder]: For 69269/69272 co-relation queries the response was YES. [2021-03-25 09:35:34,882 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14029 conditions, 1448 events. 567/1448 cut-off events. For 69269/69272 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 10962 event pairs, 10 based on Foata normal form. 1/1241 useless extension candidates. Maximal degree in co-relation 13752. Up to 261 conditions per place. [2021-03-25 09:35:34,905 INFO L142 LiptonReduction]: Number of co-enabled transitions 2940 [2021-03-25 09:35:34,952 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:35:34,952 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:35:34,952 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 413 [2021-03-25 09:35:34,952 INFO L480 AbstractCegarLoop]: Abstraction has has 581 places, 638 transitions, 14650 flow [2021-03-25 09:35:34,952 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:34,952 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:35:34,953 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:35:34,953 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2021-03-25 09:35:34,953 INFO L428 AbstractCegarLoop]: === Iteration 232 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:35:34,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:35:34,953 INFO L82 PathProgramCache]: Analyzing trace with hash -40898939, now seen corresponding path program 5 times [2021-03-25 09:35:34,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:35:34,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701299348] [2021-03-25 09:35:34,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:35:34,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:35:34,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:34,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:35:34,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:34,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:35:34,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:34,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:34,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:34,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:34,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:34,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:34,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:34,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:35,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:35,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:35,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:35,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:35,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:35,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:35,034 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:35:35,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:35:35,050 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:35:35,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:35,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:35:35,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701299348] [2021-03-25 09:35:35,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:35:35,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:35:35,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541756567] [2021-03-25 09:35:35,053 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:35:35,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:35:35,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:35:35,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:35:35,054 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 159 [2021-03-25 09:35:35,054 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 581 places, 638 transitions, 14650 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:35,054 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:35:35,054 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 159 [2021-03-25 09:35:35,054 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:35:36,084 INFO L129 PetriNetUnfolder]: 659/1625 cut-off events. [2021-03-25 09:35:36,084 INFO L130 PetriNetUnfolder]: For 86013/86017 co-relation queries the response was YES. [2021-03-25 09:35:36,116 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16810 conditions, 1625 events. 659/1625 cut-off events. For 86013/86017 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 12113 event pairs, 7 based on Foata normal form. 5/1399 useless extension candidates. Maximal degree in co-relation 16529. Up to 885 conditions per place. [2021-03-25 09:35:36,124 INFO L132 encePairwiseOnDemand]: 141/159 looper letters, 598 selfloop transitions, 66 changer transitions 0/682 dead transitions. [2021-03-25 09:35:36,124 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 597 places, 682 transitions, 18038 flow [2021-03-25 09:35:36,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-25 09:35:36,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-25 09:35:36,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 909 transitions. [2021-03-25 09:35:36,125 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3362930077691454 [2021-03-25 09:35:36,126 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 909 transitions. [2021-03-25 09:35:36,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 909 transitions. [2021-03-25 09:35:36,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:35:36,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 909 transitions. [2021-03-25 09:35:36,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 53.470588235294116) internal successors, (909), 17 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:36,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 159.0) internal successors, (2862), 18 states have internal predecessors, (2862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:36,127 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 159.0) internal successors, (2862), 18 states have internal predecessors, (2862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:36,127 INFO L185 Difference]: Start difference. First operand has 581 places, 638 transitions, 14650 flow. Second operand 17 states and 909 transitions. [2021-03-25 09:35:36,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 597 places, 682 transitions, 18038 flow [2021-03-25 09:35:36,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 591 places, 682 transitions, 17863 flow, removed 67 selfloop flow, removed 6 redundant places. [2021-03-25 09:35:36,960 INFO L241 Difference]: Finished difference. Result has 599 places, 671 transitions, 16401 flow [2021-03-25 09:35:36,960 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=14475, PETRI_DIFFERENCE_MINUEND_PLACES=575, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=638, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=592, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=16401, PETRI_PLACES=599, PETRI_TRANSITIONS=671} [2021-03-25 09:35:36,960 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 538 predicate places. [2021-03-25 09:35:36,961 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:35:36,961 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 599 places, 671 transitions, 16401 flow [2021-03-25 09:35:36,961 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 599 places, 671 transitions, 16401 flow [2021-03-25 09:35:36,967 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 599 places, 671 transitions, 16401 flow [2021-03-25 09:35:37,323 INFO L129 PetriNetUnfolder]: 585/1480 cut-off events. [2021-03-25 09:35:37,324 INFO L130 PetriNetUnfolder]: For 91743/91801 co-relation queries the response was YES. [2021-03-25 09:35:37,351 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15142 conditions, 1480 events. 585/1480 cut-off events. For 91743/91801 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 11186 event pairs, 10 based on Foata normal form. 15/1280 useless extension candidates. Maximal degree in co-relation 14856. Up to 281 conditions per place. [2021-03-25 09:35:37,376 INFO L142 LiptonReduction]: Number of co-enabled transitions 3126 [2021-03-25 09:35:37,582 INFO L154 LiptonReduction]: Checked pairs total: 10 [2021-03-25 09:35:37,582 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 09:35:37,582 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 621 [2021-03-25 09:35:37,582 INFO L480 AbstractCegarLoop]: Abstraction has has 599 places, 671 transitions, 16595 flow [2021-03-25 09:35:37,582 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:37,582 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:35:37,583 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:35:37,583 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2021-03-25 09:35:37,583 INFO L428 AbstractCegarLoop]: === Iteration 233 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:35:37,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:35:37,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1982409823, now seen corresponding path program 6 times [2021-03-25 09:35:37,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:35:37,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564257035] [2021-03-25 09:35:37,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:35:37,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:35:37,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:37,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:35:37,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:37,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:35:37,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:37,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:37,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:37,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:37,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:37,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:37,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:37,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:37,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:37,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:37,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:37,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:37,689 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:35:37,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:35:37,703 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:35:37,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:35:37,719 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:35:37,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:37,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:35:37,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564257035] [2021-03-25 09:35:37,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:35:37,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:35:37,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686208501] [2021-03-25 09:35:37,722 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:35:37,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:35:37,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:35:37,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:35:37,722 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 163 [2021-03-25 09:35:37,723 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 599 places, 671 transitions, 16595 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:37,723 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:35:37,723 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 163 [2021-03-25 09:35:37,723 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:35:38,794 INFO L129 PetriNetUnfolder]: 658/1632 cut-off events. [2021-03-25 09:35:38,794 INFO L130 PetriNetUnfolder]: For 99122/99137 co-relation queries the response was YES. [2021-03-25 09:35:38,823 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17533 conditions, 1632 events. 658/1632 cut-off events. For 99122/99137 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 12216 event pairs, 7 based on Foata normal form. 16/1418 useless extension candidates. Maximal degree in co-relation 17243. Up to 852 conditions per place. [2021-03-25 09:35:38,831 INFO L132 encePairwiseOnDemand]: 140/163 looper letters, 565 selfloop transitions, 77 changer transitions 34/694 dead transitions. [2021-03-25 09:35:38,831 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 613 places, 694 transitions, 18745 flow [2021-03-25 09:35:38,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 09:35:38,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 09:35:38,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 811 transitions. [2021-03-25 09:35:38,832 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.33169734151329244 [2021-03-25 09:35:38,832 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 811 transitions. [2021-03-25 09:35:38,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 811 transitions. [2021-03-25 09:35:38,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:35:38,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 811 transitions. [2021-03-25 09:35:38,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 54.06666666666667) internal successors, (811), 15 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:38,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 163.0) internal successors, (2608), 16 states have internal predecessors, (2608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:38,834 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 163.0) internal successors, (2608), 16 states have internal predecessors, (2608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:38,834 INFO L185 Difference]: Start difference. First operand has 599 places, 671 transitions, 16595 flow. Second operand 15 states and 811 transitions. [2021-03-25 09:35:38,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 613 places, 694 transitions, 18745 flow [2021-03-25 09:35:39,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 610 places, 694 transitions, 17390 flow, removed 664 selfloop flow, removed 3 redundant places. [2021-03-25 09:35:39,825 INFO L241 Difference]: Finished difference. Result has 615 places, 648 transitions, 15440 flow [2021-03-25 09:35:39,826 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=15240, PETRI_DIFFERENCE_MINUEND_PLACES=596, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=671, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=598, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=15440, PETRI_PLACES=615, PETRI_TRANSITIONS=648} [2021-03-25 09:35:39,826 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 554 predicate places. [2021-03-25 09:35:39,826 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:35:39,826 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 615 places, 648 transitions, 15440 flow [2021-03-25 09:35:39,826 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 615 places, 648 transitions, 15440 flow [2021-03-25 09:35:39,831 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 602 places, 648 transitions, 15440 flow [2021-03-25 09:35:40,135 INFO L129 PetriNetUnfolder]: 571/1417 cut-off events. [2021-03-25 09:35:40,135 INFO L130 PetriNetUnfolder]: For 87079/87132 co-relation queries the response was YES. [2021-03-25 09:35:40,161 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14880 conditions, 1417 events. 571/1417 cut-off events. For 87079/87132 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 10453 event pairs, 10 based on Foata normal form. 14/1230 useless extension candidates. Maximal degree in co-relation 14588. Up to 277 conditions per place. [2021-03-25 09:35:40,183 INFO L142 LiptonReduction]: Number of co-enabled transitions 2884 [2021-03-25 09:35:40,331 INFO L154 LiptonReduction]: Checked pairs total: 10 [2021-03-25 09:35:40,332 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 09:35:40,332 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 506 [2021-03-25 09:35:40,332 INFO L480 AbstractCegarLoop]: Abstraction has has 602 places, 648 transitions, 15471 flow [2021-03-25 09:35:40,332 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:40,332 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:35:40,332 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:35:40,332 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2021-03-25 09:35:40,332 INFO L428 AbstractCegarLoop]: === Iteration 234 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:35:40,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:35:40,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1430953489, now seen corresponding path program 1 times [2021-03-25 09:35:40,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:35:40,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421986884] [2021-03-25 09:35:40,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:35:40,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:35:40,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:40,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:35:40,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:40,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:35:40,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:40,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:40,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:40,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:40,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:40,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:40,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:40,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:40,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:40,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:40,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:40,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:40,401 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:35:40,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:35:40,414 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:35:40,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:40,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:35:40,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421986884] [2021-03-25 09:35:40,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:35:40,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:35:40,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617943945] [2021-03-25 09:35:40,417 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:35:40,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:35:40,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:35:40,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:35:40,417 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 165 [2021-03-25 09:35:40,417 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 602 places, 648 transitions, 15471 flow. Second operand has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:40,417 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:35:40,417 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 165 [2021-03-25 09:35:40,418 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:35:41,433 INFO L129 PetriNetUnfolder]: 654/1569 cut-off events. [2021-03-25 09:35:41,433 INFO L130 PetriNetUnfolder]: For 96497/96512 co-relation queries the response was YES. [2021-03-25 09:35:41,465 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17543 conditions, 1569 events. 654/1569 cut-off events. For 96497/96512 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 11381 event pairs, 4 based on Foata normal form. 16/1369 useless extension candidates. Maximal degree in co-relation 17247. Up to 873 conditions per place. [2021-03-25 09:35:41,474 INFO L132 encePairwiseOnDemand]: 144/165 looper letters, 579 selfloop transitions, 79 changer transitions 0/676 dead transitions. [2021-03-25 09:35:41,474 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 615 places, 676 transitions, 18267 flow [2021-03-25 09:35:41,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:35:41,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:35:41,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 770 transitions. [2021-03-25 09:35:41,475 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3333333333333333 [2021-03-25 09:35:41,475 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 770 transitions. [2021-03-25 09:35:41,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 770 transitions. [2021-03-25 09:35:41,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:35:41,475 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 770 transitions. [2021-03-25 09:35:41,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 55.0) internal successors, (770), 14 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:41,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 165.0) internal successors, (2475), 15 states have internal predecessors, (2475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:41,477 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 165.0) internal successors, (2475), 15 states have internal predecessors, (2475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:41,477 INFO L185 Difference]: Start difference. First operand has 602 places, 648 transitions, 15471 flow. Second operand 14 states and 770 transitions. [2021-03-25 09:35:41,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 615 places, 676 transitions, 18267 flow [2021-03-25 09:35:42,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 585 places, 676 transitions, 17432 flow, removed 243 selfloop flow, removed 30 redundant places. [2021-03-25 09:35:42,289 INFO L241 Difference]: Finished difference. Result has 587 places, 664 transitions, 15891 flow [2021-03-25 09:35:42,289 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=14682, PETRI_DIFFERENCE_MINUEND_PLACES=572, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=648, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=579, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=15891, PETRI_PLACES=587, PETRI_TRANSITIONS=664} [2021-03-25 09:35:42,289 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 526 predicate places. [2021-03-25 09:35:42,289 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:35:42,289 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 587 places, 664 transitions, 15891 flow [2021-03-25 09:35:42,289 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 587 places, 664 transitions, 15891 flow [2021-03-25 09:35:42,295 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 587 places, 664 transitions, 15891 flow [2021-03-25 09:35:42,640 INFO L129 PetriNetUnfolder]: 586/1444 cut-off events. [2021-03-25 09:35:42,640 INFO L130 PetriNetUnfolder]: For 84223/84306 co-relation queries the response was YES. [2021-03-25 09:35:42,664 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15037 conditions, 1444 events. 586/1444 cut-off events. For 84223/84306 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 10688 event pairs, 14 based on Foata normal form. 15/1254 useless extension candidates. Maximal degree in co-relation 14757. Up to 283 conditions per place. [2021-03-25 09:35:42,687 INFO L142 LiptonReduction]: Number of co-enabled transitions 2934 [2021-03-25 09:35:42,733 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:35:42,733 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:35:42,733 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 444 [2021-03-25 09:35:42,733 INFO L480 AbstractCegarLoop]: Abstraction has has 587 places, 664 transitions, 15891 flow [2021-03-25 09:35:42,734 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:42,734 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:35:42,734 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:35:42,734 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2021-03-25 09:35:42,734 INFO L428 AbstractCegarLoop]: === Iteration 235 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:35:42,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:35:42,734 INFO L82 PathProgramCache]: Analyzing trace with hash -2121014410, now seen corresponding path program 1 times [2021-03-25 09:35:42,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:35:42,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475146325] [2021-03-25 09:35:42,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:35:42,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:35:42,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:42,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:35:42,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:42,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:35:42,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:42,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:42,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:42,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:42,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:42,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:42,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:42,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:42,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:42,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:42,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:42,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:42,790 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:35:42,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:35:42,795 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:35:42,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:42,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:35:42,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475146325] [2021-03-25 09:35:42,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:35:42,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 09:35:42,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028392574] [2021-03-25 09:35:42,798 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 09:35:42,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:35:42,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 09:35:42,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-03-25 09:35:42,798 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 165 [2021-03-25 09:35:42,798 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 587 places, 664 transitions, 15891 flow. Second operand has 8 states, 8 states have (on average 49.5) internal successors, (396), 8 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:42,798 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:35:42,798 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 165 [2021-03-25 09:35:42,798 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:35:43,643 INFO L129 PetriNetUnfolder]: 661/1585 cut-off events. [2021-03-25 09:35:43,643 INFO L130 PetriNetUnfolder]: For 91289/91304 co-relation queries the response was YES. [2021-03-25 09:35:43,674 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17112 conditions, 1585 events. 661/1585 cut-off events. For 91289/91304 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 11548 event pairs, 1 based on Foata normal form. 16/1378 useless extension candidates. Maximal degree in co-relation 16828. Up to 871 conditions per place. [2021-03-25 09:35:43,682 INFO L132 encePairwiseOnDemand]: 145/165 looper letters, 581 selfloop transitions, 78 changer transitions 0/677 dead transitions. [2021-03-25 09:35:43,682 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 594 places, 677 transitions, 17557 flow [2021-03-25 09:35:43,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 09:35:43,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 09:35:43,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 470 transitions. [2021-03-25 09:35:43,684 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3560606060606061 [2021-03-25 09:35:43,684 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 470 transitions. [2021-03-25 09:35:43,684 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 470 transitions. [2021-03-25 09:35:43,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:35:43,684 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 470 transitions. [2021-03-25 09:35:43,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.75) internal successors, (470), 8 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:43,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 165.0) internal successors, (1485), 9 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:43,685 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 165.0) internal successors, (1485), 9 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:43,685 INFO L185 Difference]: Start difference. First operand has 587 places, 664 transitions, 15891 flow. Second operand 8 states and 470 transitions. [2021-03-25 09:35:43,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 594 places, 677 transitions, 17557 flow [2021-03-25 09:35:44,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 589 places, 677 transitions, 16720 flow, removed 401 selfloop flow, removed 5 redundant places. [2021-03-25 09:35:44,494 INFO L241 Difference]: Finished difference. Result has 590 places, 664 transitions, 15230 flow [2021-03-25 09:35:44,495 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=15054, PETRI_DIFFERENCE_MINUEND_PLACES=582, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=664, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=586, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=15230, PETRI_PLACES=590, PETRI_TRANSITIONS=664} [2021-03-25 09:35:44,495 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 529 predicate places. [2021-03-25 09:35:44,495 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:35:44,495 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 590 places, 664 transitions, 15230 flow [2021-03-25 09:35:44,495 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 590 places, 664 transitions, 15230 flow [2021-03-25 09:35:44,500 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 590 places, 664 transitions, 15230 flow [2021-03-25 09:35:44,813 INFO L129 PetriNetUnfolder]: 590/1451 cut-off events. [2021-03-25 09:35:44,813 INFO L130 PetriNetUnfolder]: For 81065/81145 co-relation queries the response was YES. [2021-03-25 09:35:44,839 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14601 conditions, 1451 events. 590/1451 cut-off events. For 81065/81145 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 10721 event pairs, 11 based on Foata normal form. 15/1259 useless extension candidates. Maximal degree in co-relation 14321. Up to 277 conditions per place. [2021-03-25 09:35:44,861 INFO L142 LiptonReduction]: Number of co-enabled transitions 2934 [2021-03-25 09:35:44,911 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:35:44,911 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:35:44,911 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 416 [2021-03-25 09:35:44,911 INFO L480 AbstractCegarLoop]: Abstraction has has 590 places, 664 transitions, 15230 flow [2021-03-25 09:35:44,911 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 49.5) internal successors, (396), 8 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:44,911 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:35:44,911 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:35:44,911 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2021-03-25 09:35:44,912 INFO L428 AbstractCegarLoop]: === Iteration 236 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:35:44,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:35:44,912 INFO L82 PathProgramCache]: Analyzing trace with hash 181415166, now seen corresponding path program 1 times [2021-03-25 09:35:44,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:35:44,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992500527] [2021-03-25 09:35:44,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:35:44,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:35:44,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:44,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:35:44,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:44,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:35:44,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:44,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:44,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:44,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:44,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:44,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:44,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:44,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:44,968 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:35:44,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:35:44,971 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:35:44,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:35:44,983 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:35:44,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:35:44,997 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:35:44,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:44,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:35:44,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992500527] [2021-03-25 09:35:44,999 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:35:44,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:35:44,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625996559] [2021-03-25 09:35:45,000 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:35:45,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:35:45,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:35:45,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:35:45,000 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 165 [2021-03-25 09:35:45,000 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 590 places, 664 transitions, 15230 flow. Second operand has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:45,000 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:35:45,000 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 165 [2021-03-25 09:35:45,001 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:35:46,092 INFO L129 PetriNetUnfolder]: 671/1616 cut-off events. [2021-03-25 09:35:46,092 INFO L130 PetriNetUnfolder]: For 92476/92480 co-relation queries the response was YES. [2021-03-25 09:35:46,115 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17472 conditions, 1616 events. 671/1616 cut-off events. For 92476/92480 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 11841 event pairs, 3 based on Foata normal form. 6/1396 useless extension candidates. Maximal degree in co-relation 17188. Up to 848 conditions per place. [2021-03-25 09:35:46,122 INFO L132 encePairwiseOnDemand]: 146/165 looper letters, 578 selfloop transitions, 94 changer transitions 1/691 dead transitions. [2021-03-25 09:35:46,122 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 600 places, 691 transitions, 17967 flow [2021-03-25 09:35:46,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:35:46,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:35:46,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 625 transitions. [2021-03-25 09:35:46,124 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3443526170798898 [2021-03-25 09:35:46,124 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 625 transitions. [2021-03-25 09:35:46,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 625 transitions. [2021-03-25 09:35:46,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:35:46,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 625 transitions. [2021-03-25 09:35:46,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 56.81818181818182) internal successors, (625), 11 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:46,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 165.0) internal successors, (1980), 12 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:46,125 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 165.0) internal successors, (1980), 12 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:46,125 INFO L185 Difference]: Start difference. First operand has 590 places, 664 transitions, 15230 flow. Second operand 11 states and 625 transitions. [2021-03-25 09:35:46,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 600 places, 691 transitions, 17967 flow [2021-03-25 09:35:46,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 596 places, 691 transitions, 17904 flow, removed 3 selfloop flow, removed 4 redundant places. [2021-03-25 09:35:46,916 INFO L241 Difference]: Finished difference. Result has 599 places, 675 transitions, 16399 flow [2021-03-25 09:35:46,916 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=15167, PETRI_DIFFERENCE_MINUEND_PLACES=586, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=664, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=578, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=16399, PETRI_PLACES=599, PETRI_TRANSITIONS=675} [2021-03-25 09:35:46,916 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 538 predicate places. [2021-03-25 09:35:46,916 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:35:46,916 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 599 places, 675 transitions, 16399 flow [2021-03-25 09:35:46,917 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 599 places, 675 transitions, 16399 flow [2021-03-25 09:35:46,922 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 599 places, 675 transitions, 16399 flow [2021-03-25 09:35:47,282 INFO L129 PetriNetUnfolder]: 601/1487 cut-off events. [2021-03-25 09:35:47,283 INFO L130 PetriNetUnfolder]: For 91335/91373 co-relation queries the response was YES. [2021-03-25 09:35:47,309 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15603 conditions, 1487 events. 601/1487 cut-off events. For 91335/91373 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 11134 event pairs, 6 based on Foata normal form. 15/1291 useless extension candidates. Maximal degree in co-relation 15320. Up to 292 conditions per place. [2021-03-25 09:35:47,334 INFO L142 LiptonReduction]: Number of co-enabled transitions 3030 [2021-03-25 09:35:47,477 INFO L154 LiptonReduction]: Checked pairs total: 5 [2021-03-25 09:35:47,478 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:35:47,478 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 562 [2021-03-25 09:35:47,478 INFO L480 AbstractCegarLoop]: Abstraction has has 599 places, 675 transitions, 16482 flow [2021-03-25 09:35:47,478 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:47,478 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:35:47,478 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:35:47,478 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2021-03-25 09:35:47,478 INFO L428 AbstractCegarLoop]: === Iteration 237 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:35:47,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:35:47,479 INFO L82 PathProgramCache]: Analyzing trace with hash 2116319038, now seen corresponding path program 2 times [2021-03-25 09:35:47,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:35:47,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513284223] [2021-03-25 09:35:47,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:35:47,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:35:47,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:47,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:35:47,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:47,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:35:47,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:47,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:47,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:47,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:47,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:47,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:47,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:47,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:47,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:47,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:47,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:47,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:47,559 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:35:47,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:35:47,573 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:35:47,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:47,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:35:47,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513284223] [2021-03-25 09:35:47,576 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:35:47,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:35:47,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683182437] [2021-03-25 09:35:47,576 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:35:47,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:35:47,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:35:47,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:35:47,577 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 166 [2021-03-25 09:35:47,577 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 599 places, 675 transitions, 16482 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:47,577 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:35:47,577 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 166 [2021-03-25 09:35:47,577 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:35:48,693 INFO L129 PetriNetUnfolder]: 687/1667 cut-off events. [2021-03-25 09:35:48,693 INFO L130 PetriNetUnfolder]: For 100609/100622 co-relation queries the response was YES. [2021-03-25 09:35:48,724 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18103 conditions, 1667 events. 687/1667 cut-off events. For 100609/100622 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 12398 event pairs, 4 based on Foata normal form. 14/1440 useless extension candidates. Maximal degree in co-relation 17816. Up to 901 conditions per place. [2021-03-25 09:35:48,732 INFO L132 encePairwiseOnDemand]: 147/166 looper letters, 604 selfloop transitions, 66 changer transitions 12/700 dead transitions. [2021-03-25 09:35:48,732 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 613 places, 700 transitions, 18824 flow [2021-03-25 09:35:48,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 09:35:48,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 09:35:48,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 813 transitions. [2021-03-25 09:35:48,733 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3265060240963855 [2021-03-25 09:35:48,733 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 813 transitions. [2021-03-25 09:35:48,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 813 transitions. [2021-03-25 09:35:48,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:35:48,733 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 813 transitions. [2021-03-25 09:35:48,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 54.2) internal successors, (813), 15 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:48,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 166.0) internal successors, (2656), 16 states have internal predecessors, (2656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:48,735 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 166.0) internal successors, (2656), 16 states have internal predecessors, (2656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:48,735 INFO L185 Difference]: Start difference. First operand has 599 places, 675 transitions, 16482 flow. Second operand 15 states and 813 transitions. [2021-03-25 09:35:48,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 613 places, 700 transitions, 18824 flow [2021-03-25 09:35:49,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 610 places, 700 transitions, 17881 flow, removed 453 selfloop flow, removed 3 redundant places. [2021-03-25 09:35:49,658 INFO L241 Difference]: Finished difference. Result has 615 places, 679 transitions, 16106 flow [2021-03-25 09:35:49,658 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=15595, PETRI_DIFFERENCE_MINUEND_PLACES=596, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=675, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=612, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=16106, PETRI_PLACES=615, PETRI_TRANSITIONS=679} [2021-03-25 09:35:49,658 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 554 predicate places. [2021-03-25 09:35:49,659 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:35:49,659 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 615 places, 679 transitions, 16106 flow [2021-03-25 09:35:49,659 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 615 places, 679 transitions, 16106 flow [2021-03-25 09:35:49,664 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 612 places, 679 transitions, 16106 flow [2021-03-25 09:35:50,001 INFO L129 PetriNetUnfolder]: 604/1514 cut-off events. [2021-03-25 09:35:50,002 INFO L130 PetriNetUnfolder]: For 89726/89762 co-relation queries the response was YES. [2021-03-25 09:35:50,118 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15331 conditions, 1514 events. 604/1514 cut-off events. For 89726/89762 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 11459 event pairs, 9 based on Foata normal form. 15/1307 useless extension candidates. Maximal degree in co-relation 15042. Up to 281 conditions per place. [2021-03-25 09:35:50,138 INFO L142 LiptonReduction]: Number of co-enabled transitions 3032 [2021-03-25 09:35:50,186 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:35:50,187 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:35:50,187 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 528 [2021-03-25 09:35:50,187 INFO L480 AbstractCegarLoop]: Abstraction has has 612 places, 679 transitions, 16106 flow [2021-03-25 09:35:50,187 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:50,187 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:35:50,187 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:35:50,187 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2021-03-25 09:35:50,187 INFO L428 AbstractCegarLoop]: === Iteration 238 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:35:50,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:35:50,188 INFO L82 PathProgramCache]: Analyzing trace with hash 585860518, now seen corresponding path program 3 times [2021-03-25 09:35:50,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:35:50,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972813529] [2021-03-25 09:35:50,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:35:50,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:35:50,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:50,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:35:50,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:50,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:35:50,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:50,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:50,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:50,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:50,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:50,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:50,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:50,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:50,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:50,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:50,256 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 09:35:50,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:35:50,269 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:35:50,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:35:50,283 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:35:50,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:50,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:35:50,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972813529] [2021-03-25 09:35:50,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:35:50,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:35:50,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200462573] [2021-03-25 09:35:50,286 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:35:50,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:35:50,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:35:50,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:35:50,286 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 166 [2021-03-25 09:35:50,286 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 612 places, 679 transitions, 16106 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:50,287 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:35:50,287 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 166 [2021-03-25 09:35:50,287 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:35:51,331 INFO L129 PetriNetUnfolder]: 684/1669 cut-off events. [2021-03-25 09:35:51,331 INFO L130 PetriNetUnfolder]: For 99110/99125 co-relation queries the response was YES. [2021-03-25 09:35:51,369 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18001 conditions, 1669 events. 684/1669 cut-off events. For 99110/99125 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 12466 event pairs, 5 based on Foata normal form. 16/1446 useless extension candidates. Maximal degree in co-relation 17708. Up to 895 conditions per place. [2021-03-25 09:35:51,377 INFO L132 encePairwiseOnDemand]: 147/166 looper letters, 584 selfloop transitions, 104 changer transitions 0/706 dead transitions. [2021-03-25 09:35:51,377 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 625 places, 706 transitions, 18924 flow [2021-03-25 09:35:51,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:35:51,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:35:51,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 773 transitions. [2021-03-25 09:35:51,378 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3326161790017212 [2021-03-25 09:35:51,378 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 773 transitions. [2021-03-25 09:35:51,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 773 transitions. [2021-03-25 09:35:51,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:35:51,378 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 773 transitions. [2021-03-25 09:35:51,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 55.214285714285715) internal successors, (773), 14 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:51,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 166.0) internal successors, (2490), 15 states have internal predecessors, (2490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:51,380 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 166.0) internal successors, (2490), 15 states have internal predecessors, (2490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:51,380 INFO L185 Difference]: Start difference. First operand has 612 places, 679 transitions, 16106 flow. Second operand 14 states and 773 transitions. [2021-03-25 09:35:51,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 625 places, 706 transitions, 18924 flow [2021-03-25 09:35:52,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 614 places, 706 transitions, 18322 flow, removed 222 selfloop flow, removed 11 redundant places. [2021-03-25 09:35:52,330 INFO L241 Difference]: Finished difference. Result has 617 places, 698 transitions, 17085 flow [2021-03-25 09:35:52,330 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=15543, PETRI_DIFFERENCE_MINUEND_PLACES=601, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=679, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=587, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=17085, PETRI_PLACES=617, PETRI_TRANSITIONS=698} [2021-03-25 09:35:52,331 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 556 predicate places. [2021-03-25 09:35:52,331 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:35:52,331 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 617 places, 698 transitions, 17085 flow [2021-03-25 09:35:52,331 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 617 places, 698 transitions, 17085 flow [2021-03-25 09:35:52,337 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 617 places, 698 transitions, 17085 flow [2021-03-25 09:35:52,700 INFO L129 PetriNetUnfolder]: 622/1557 cut-off events. [2021-03-25 09:35:52,700 INFO L130 PetriNetUnfolder]: For 98852/98907 co-relation queries the response was YES. [2021-03-25 09:35:52,730 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16023 conditions, 1557 events. 622/1557 cut-off events. For 98852/98907 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 11928 event pairs, 11 based on Foata normal form. 16/1339 useless extension candidates. Maximal degree in co-relation 15732. Up to 292 conditions per place. [2021-03-25 09:35:52,756 INFO L142 LiptonReduction]: Number of co-enabled transitions 3132 [2021-03-25 09:35:52,810 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:35:52,810 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:35:52,810 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 479 [2021-03-25 09:35:52,810 INFO L480 AbstractCegarLoop]: Abstraction has has 617 places, 698 transitions, 17085 flow [2021-03-25 09:35:52,810 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:52,810 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:35:52,810 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:35:52,811 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2021-03-25 09:35:52,811 INFO L428 AbstractCegarLoop]: === Iteration 239 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:35:52,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:35:52,811 INFO L82 PathProgramCache]: Analyzing trace with hash -704383114, now seen corresponding path program 4 times [2021-03-25 09:35:52,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:35:52,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281818154] [2021-03-25 09:35:52,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:35:52,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:35:52,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:52,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:35:52,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:52,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:35:52,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:52,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:52,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:52,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:52,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:52,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:52,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:52,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:52,864 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 09:35:52,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:35:52,867 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 09:35:52,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:35:52,880 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:35:52,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:35:52,894 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:35:52,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:52,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:35:52,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281818154] [2021-03-25 09:35:52,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:35:52,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:35:52,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557046894] [2021-03-25 09:35:52,897 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:35:52,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:35:52,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:35:52,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:35:52,898 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 166 [2021-03-25 09:35:52,898 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 617 places, 698 transitions, 17085 flow. Second operand has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:52,898 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:35:52,898 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 166 [2021-03-25 09:35:52,898 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:35:54,025 INFO L129 PetriNetUnfolder]: 701/1727 cut-off events. [2021-03-25 09:35:54,026 INFO L130 PetriNetUnfolder]: For 103527/103533 co-relation queries the response was YES. [2021-03-25 09:35:54,053 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18292 conditions, 1727 events. 701/1727 cut-off events. For 103527/103533 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 13106 event pairs, 1 based on Foata normal form. 8/1478 useless extension candidates. Maximal degree in co-relation 17997. Up to 913 conditions per place. [2021-03-25 09:35:54,060 INFO L132 encePairwiseOnDemand]: 147/166 looper letters, 609 selfloop transitions, 82 changer transitions 5/714 dead transitions. [2021-03-25 09:35:54,060 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 628 places, 714 transitions, 19074 flow [2021-03-25 09:35:54,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:35:54,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:35:54,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 676 transitions. [2021-03-25 09:35:54,061 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3393574297188755 [2021-03-25 09:35:54,061 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 676 transitions. [2021-03-25 09:35:54,061 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 676 transitions. [2021-03-25 09:35:54,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:35:54,062 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 676 transitions. [2021-03-25 09:35:54,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 56.333333333333336) internal successors, (676), 12 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:54,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 166.0) internal successors, (2158), 13 states have internal predecessors, (2158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:54,063 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 166.0) internal successors, (2158), 13 states have internal predecessors, (2158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:54,063 INFO L185 Difference]: Start difference. First operand has 617 places, 698 transitions, 17085 flow. Second operand 12 states and 676 transitions. [2021-03-25 09:35:54,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 628 places, 714 transitions, 19074 flow [2021-03-25 09:35:55,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 625 places, 714 transitions, 18037 flow, removed 507 selfloop flow, removed 3 redundant places. [2021-03-25 09:35:55,026 INFO L241 Difference]: Finished difference. Result has 628 places, 702 transitions, 16710 flow [2021-03-25 09:35:55,026 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=16172, PETRI_DIFFERENCE_MINUEND_PLACES=614, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=698, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=618, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=16710, PETRI_PLACES=628, PETRI_TRANSITIONS=702} [2021-03-25 09:35:55,027 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 567 predicate places. [2021-03-25 09:35:55,027 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:35:55,027 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 628 places, 702 transitions, 16710 flow [2021-03-25 09:35:55,027 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 628 places, 702 transitions, 16710 flow [2021-03-25 09:35:55,033 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 628 places, 702 transitions, 16710 flow [2021-03-25 09:35:55,394 INFO L129 PetriNetUnfolder]: 603/1514 cut-off events. [2021-03-25 09:35:55,394 INFO L130 PetriNetUnfolder]: For 94378/94433 co-relation queries the response was YES. [2021-03-25 09:35:55,423 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15586 conditions, 1514 events. 603/1514 cut-off events. For 94378/94433 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 11470 event pairs, 12 based on Foata normal form. 16/1312 useless extension candidates. Maximal degree in co-relation 15291. Up to 284 conditions per place. [2021-03-25 09:35:55,450 INFO L142 LiptonReduction]: Number of co-enabled transitions 3166 [2021-03-25 09:35:55,506 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:35:55,506 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:35:55,506 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 479 [2021-03-25 09:35:55,506 INFO L480 AbstractCegarLoop]: Abstraction has has 628 places, 702 transitions, 16710 flow [2021-03-25 09:35:55,506 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:55,506 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:35:55,506 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:35:55,506 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2021-03-25 09:35:55,506 INFO L428 AbstractCegarLoop]: === Iteration 240 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:35:55,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:35:55,507 INFO L82 PathProgramCache]: Analyzing trace with hash -1439524546, now seen corresponding path program 5 times [2021-03-25 09:35:55,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:35:55,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870553963] [2021-03-25 09:35:55,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:35:55,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:35:55,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:55,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:35:55,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:55,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:35:55,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:55,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:55,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:55,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:55,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:55,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:55,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:55,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:55,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:55,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:55,576 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 09:35:55,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:35:55,589 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:35:55,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:35:55,603 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:35:55,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:55,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:35:55,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870553963] [2021-03-25 09:35:55,605 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:35:55,605 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:35:55,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904125974] [2021-03-25 09:35:55,606 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:35:55,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:35:55,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:35:55,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:35:55,606 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 166 [2021-03-25 09:35:55,607 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 628 places, 702 transitions, 16710 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:55,607 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:35:55,607 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 166 [2021-03-25 09:35:55,607 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:35:56,677 INFO L129 PetriNetUnfolder]: 686/1692 cut-off events. [2021-03-25 09:35:56,677 INFO L130 PetriNetUnfolder]: For 96209/96224 co-relation queries the response was YES. [2021-03-25 09:35:56,710 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17687 conditions, 1692 events. 686/1692 cut-off events. For 96209/96224 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 12766 event pairs, 1 based on Foata normal form. 16/1461 useless extension candidates. Maximal degree in co-relation 17388. Up to 901 conditions per place. [2021-03-25 09:35:56,717 INFO L132 encePairwiseOnDemand]: 147/166 looper letters, 601 selfloop transitions, 86 changer transitions 6/711 dead transitions. [2021-03-25 09:35:56,717 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 641 places, 711 transitions, 18253 flow [2021-03-25 09:35:56,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:35:56,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:35:56,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 775 transitions. [2021-03-25 09:35:56,719 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3334767641996558 [2021-03-25 09:35:56,719 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 775 transitions. [2021-03-25 09:35:56,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 775 transitions. [2021-03-25 09:35:56,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:35:56,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 775 transitions. [2021-03-25 09:35:56,719 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 55.357142857142854) internal successors, (775), 14 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:56,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 166.0) internal successors, (2490), 15 states have internal predecessors, (2490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:56,720 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 166.0) internal successors, (2490), 15 states have internal predecessors, (2490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:56,720 INFO L185 Difference]: Start difference. First operand has 628 places, 702 transitions, 16710 flow. Second operand 14 states and 775 transitions. [2021-03-25 09:35:56,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 641 places, 711 transitions, 18253 flow [2021-03-25 09:35:57,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 637 places, 711 transitions, 17848 flow, removed 184 selfloop flow, removed 4 redundant places. [2021-03-25 09:35:57,722 INFO L241 Difference]: Finished difference. Result has 639 places, 697 transitions, 16402 flow [2021-03-25 09:35:57,723 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=16307, PETRI_DIFFERENCE_MINUEND_PLACES=624, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=702, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=616, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=16402, PETRI_PLACES=639, PETRI_TRANSITIONS=697} [2021-03-25 09:35:57,723 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 578 predicate places. [2021-03-25 09:35:57,723 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:35:57,723 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 639 places, 697 transitions, 16402 flow [2021-03-25 09:35:57,723 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 639 places, 697 transitions, 16402 flow [2021-03-25 09:35:57,729 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 639 places, 697 transitions, 16402 flow [2021-03-25 09:35:58,139 INFO L129 PetriNetUnfolder]: 598/1515 cut-off events. [2021-03-25 09:35:58,139 INFO L130 PetriNetUnfolder]: For 93321/93383 co-relation queries the response was YES. [2021-03-25 09:35:58,166 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15458 conditions, 1515 events. 598/1515 cut-off events. For 93321/93383 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 11513 event pairs, 7 based on Foata normal form. 16/1311 useless extension candidates. Maximal degree in co-relation 15160. Up to 279 conditions per place. [2021-03-25 09:35:58,193 INFO L142 LiptonReduction]: Number of co-enabled transitions 3166 [2021-03-25 09:35:58,246 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:35:58,246 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:35:58,246 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 523 [2021-03-25 09:35:58,247 INFO L480 AbstractCegarLoop]: Abstraction has has 639 places, 697 transitions, 16402 flow [2021-03-25 09:35:58,247 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:58,247 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:35:58,247 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:35:58,247 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2021-03-25 09:35:58,247 INFO L428 AbstractCegarLoop]: === Iteration 241 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:35:58,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:35:58,247 INFO L82 PathProgramCache]: Analyzing trace with hash -364854611, now seen corresponding path program 1 times [2021-03-25 09:35:58,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:35:58,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738090160] [2021-03-25 09:35:58,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:35:58,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:35:58,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:58,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:35:58,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:58,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:35:58,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:58,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:58,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:58,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:35:58,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:58,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:58,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:58,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:35:58,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:35:58,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:58,297 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:35:58,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:35:58,300 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:35:58,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:35:58,313 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:35:58,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:35:58,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:35:58,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738090160] [2021-03-25 09:35:58,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:35:58,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 09:35:58,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980286077] [2021-03-25 09:35:58,316 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 09:35:58,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:35:58,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 09:35:58,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-03-25 09:35:58,317 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 166 [2021-03-25 09:35:58,317 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 639 places, 697 transitions, 16402 flow. Second operand has 8 states, 8 states have (on average 49.5) internal successors, (396), 8 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:58,317 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:35:58,317 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 166 [2021-03-25 09:35:58,317 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:35:59,273 INFO L129 PetriNetUnfolder]: 696/1726 cut-off events. [2021-03-25 09:35:59,273 INFO L130 PetriNetUnfolder]: For 96830/96843 co-relation queries the response was YES. [2021-03-25 09:35:59,307 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18185 conditions, 1726 events. 696/1726 cut-off events. For 96830/96843 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 13148 event pairs, 9 based on Foata normal form. 14/1484 useless extension candidates. Maximal degree in co-relation 17883. Up to 878 conditions per place. [2021-03-25 09:35:59,313 INFO L132 encePairwiseOnDemand]: 145/166 looper letters, 605 selfloop transitions, 97 changer transitions 0/720 dead transitions. [2021-03-25 09:35:59,314 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 646 places, 720 transitions, 18895 flow [2021-03-25 09:35:59,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 09:35:59,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 09:35:59,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 479 transitions. [2021-03-25 09:35:59,315 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.36069277108433734 [2021-03-25 09:35:59,315 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 479 transitions. [2021-03-25 09:35:59,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 479 transitions. [2021-03-25 09:35:59,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:35:59,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 479 transitions. [2021-03-25 09:35:59,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 59.875) internal successors, (479), 8 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:59,316 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 166.0) internal successors, (1494), 9 states have internal predecessors, (1494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:59,316 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 166.0) internal successors, (1494), 9 states have internal predecessors, (1494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:35:59,316 INFO L185 Difference]: Start difference. First operand has 639 places, 697 transitions, 16402 flow. Second operand 8 states and 479 transitions. [2021-03-25 09:35:59,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 646 places, 720 transitions, 18895 flow [2021-03-25 09:36:00,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 632 places, 720 transitions, 18706 flow, removed 1 selfloop flow, removed 14 redundant places. [2021-03-25 09:36:00,411 INFO L241 Difference]: Finished difference. Result has 636 places, 705 transitions, 17093 flow [2021-03-25 09:36:00,412 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=16215, PETRI_DIFFERENCE_MINUEND_PLACES=625, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=697, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=603, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=17093, PETRI_PLACES=636, PETRI_TRANSITIONS=705} [2021-03-25 09:36:00,412 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 575 predicate places. [2021-03-25 09:36:00,412 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:36:00,412 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 636 places, 705 transitions, 17093 flow [2021-03-25 09:36:00,412 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 636 places, 705 transitions, 17093 flow [2021-03-25 09:36:00,418 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 636 places, 705 transitions, 17093 flow [2021-03-25 09:36:00,786 INFO L129 PetriNetUnfolder]: 609/1552 cut-off events. [2021-03-25 09:36:00,786 INFO L130 PetriNetUnfolder]: For 99836/99879 co-relation queries the response was YES. [2021-03-25 09:36:00,816 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16104 conditions, 1552 events. 609/1552 cut-off events. For 99836/99879 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 11918 event pairs, 10 based on Foata normal form. 19/1345 useless extension candidates. Maximal degree in co-relation 15803. Up to 288 conditions per place. [2021-03-25 09:36:00,842 INFO L142 LiptonReduction]: Number of co-enabled transitions 3212 [2021-03-25 09:36:00,896 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:36:00,896 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:36:00,897 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 485 [2021-03-25 09:36:00,897 INFO L480 AbstractCegarLoop]: Abstraction has has 636 places, 705 transitions, 17093 flow [2021-03-25 09:36:00,897 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 49.5) internal successors, (396), 8 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:00,897 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:36:00,897 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:36:00,897 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2021-03-25 09:36:00,897 INFO L428 AbstractCegarLoop]: === Iteration 242 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:36:00,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:36:00,897 INFO L82 PathProgramCache]: Analyzing trace with hash 431423000, now seen corresponding path program 6 times [2021-03-25 09:36:00,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:36:00,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436251150] [2021-03-25 09:36:00,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:36:00,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:36:00,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:00,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:36:00,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:00,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:36:00,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:00,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:00,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:00,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:00,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:00,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:00,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:00,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:00,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:00,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:01,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:01,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:01,015 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:36:01,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:36:01,039 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:36:01,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:01,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:36:01,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436251150] [2021-03-25 09:36:01,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:36:01,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:36:01,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817928336] [2021-03-25 09:36:01,042 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:36:01,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:36:01,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:36:01,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:36:01,043 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 166 [2021-03-25 09:36:01,043 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 636 places, 705 transitions, 17093 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:01,043 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:36:01,043 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 166 [2021-03-25 09:36:01,043 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:36:02,078 INFO L129 PetriNetUnfolder]: 701/1738 cut-off events. [2021-03-25 09:36:02,078 INFO L130 PetriNetUnfolder]: For 106417/106423 co-relation queries the response was YES. [2021-03-25 09:36:02,116 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18778 conditions, 1738 events. 701/1738 cut-off events. For 106417/106423 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 13217 event pairs, 11 based on Foata normal form. 8/1492 useless extension candidates. Maximal degree in co-relation 18473. Up to 881 conditions per place. [2021-03-25 09:36:02,124 INFO L132 encePairwiseOnDemand]: 147/166 looper letters, 561 selfloop transitions, 136 changer transitions 13/728 dead transitions. [2021-03-25 09:36:02,124 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 647 places, 728 transitions, 19383 flow [2021-03-25 09:36:02,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:36:02,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:36:02,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 675 transitions. [2021-03-25 09:36:02,126 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.338855421686747 [2021-03-25 09:36:02,126 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 675 transitions. [2021-03-25 09:36:02,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 675 transitions. [2021-03-25 09:36:02,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:36:02,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 675 transitions. [2021-03-25 09:36:02,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 56.25) internal successors, (675), 12 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:02,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 166.0) internal successors, (2158), 13 states have internal predecessors, (2158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:02,127 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 166.0) internal successors, (2158), 13 states have internal predecessors, (2158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:02,127 INFO L185 Difference]: Start difference. First operand has 636 places, 705 transitions, 17093 flow. Second operand 12 states and 675 transitions. [2021-03-25 09:36:02,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 647 places, 728 transitions, 19383 flow [2021-03-25 09:36:03,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 645 places, 728 transitions, 19173 flow, removed 92 selfloop flow, removed 2 redundant places. [2021-03-25 09:36:03,277 INFO L241 Difference]: Finished difference. Result has 650 places, 705 transitions, 17643 flow [2021-03-25 09:36:03,278 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=16883, PETRI_DIFFERENCE_MINUEND_PLACES=634, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=705, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=125, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=570, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=17643, PETRI_PLACES=650, PETRI_TRANSITIONS=705} [2021-03-25 09:36:03,278 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 589 predicate places. [2021-03-25 09:36:03,278 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:36:03,278 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 650 places, 705 transitions, 17643 flow [2021-03-25 09:36:03,278 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 650 places, 705 transitions, 17643 flow [2021-03-25 09:36:03,284 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 644 places, 705 transitions, 17643 flow [2021-03-25 09:36:03,656 INFO L129 PetriNetUnfolder]: 616/1560 cut-off events. [2021-03-25 09:36:03,656 INFO L130 PetriNetUnfolder]: For 106019/106070 co-relation queries the response was YES. [2021-03-25 09:36:03,686 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16786 conditions, 1560 events. 616/1560 cut-off events. For 106019/106070 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 11947 event pairs, 2 based on Foata normal form. 16/1348 useless extension candidates. Maximal degree in co-relation 16505. Up to 297 conditions per place. [2021-03-25 09:36:03,713 INFO L142 LiptonReduction]: Number of co-enabled transitions 3206 [2021-03-25 09:36:03,770 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:36:03,770 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:36:03,770 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 492 [2021-03-25 09:36:03,770 INFO L480 AbstractCegarLoop]: Abstraction has has 644 places, 705 transitions, 17643 flow [2021-03-25 09:36:03,770 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:03,770 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:36:03,770 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:36:03,770 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2021-03-25 09:36:03,770 INFO L428 AbstractCegarLoop]: === Iteration 243 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:36:03,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:36:03,771 INFO L82 PathProgramCache]: Analyzing trace with hash 901507204, now seen corresponding path program 4 times [2021-03-25 09:36:03,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:36:03,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123721963] [2021-03-25 09:36:03,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:36:03,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:36:03,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:03,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:36:03,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:03,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:36:03,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:03,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:36:03,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:03,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:03,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:03,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:03,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:03,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:03,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:03,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:03,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:03,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:03,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:03,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:03,848 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:36:03,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:36:03,855 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:36:03,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:03,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:36:03,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123721963] [2021-03-25 09:36:03,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:36:03,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:36:03,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402605928] [2021-03-25 09:36:03,857 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:36:03,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:36:03,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:36:03,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:36:03,858 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 166 [2021-03-25 09:36:03,858 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 644 places, 705 transitions, 17643 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:03,858 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:36:03,858 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 166 [2021-03-25 09:36:03,858 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:36:04,923 INFO L129 PetriNetUnfolder]: 702/1734 cut-off events. [2021-03-25 09:36:04,923 INFO L130 PetriNetUnfolder]: For 110570/110581 co-relation queries the response was YES. [2021-03-25 09:36:04,964 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19297 conditions, 1734 events. 702/1734 cut-off events. For 110570/110581 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 13192 event pairs, 11 based on Foata normal form. 8/1488 useless extension candidates. Maximal degree in co-relation 19014. Up to 948 conditions per place. [2021-03-25 09:36:04,973 INFO L132 encePairwiseOnDemand]: 150/166 looper letters, 643 selfloop transitions, 65 changer transitions 0/726 dead transitions. [2021-03-25 09:36:04,973 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 656 places, 726 transitions, 19948 flow [2021-03-25 09:36:04,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:36:04,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:36:04,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 715 transitions. [2021-03-25 09:36:04,974 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3313253012048193 [2021-03-25 09:36:04,974 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 715 transitions. [2021-03-25 09:36:04,974 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 715 transitions. [2021-03-25 09:36:04,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:36:04,975 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 715 transitions. [2021-03-25 09:36:04,975 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 55.0) internal successors, (715), 13 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:04,976 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 166.0) internal successors, (2324), 14 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:04,976 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 166.0) internal successors, (2324), 14 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:04,976 INFO L185 Difference]: Start difference. First operand has 644 places, 705 transitions, 17643 flow. Second operand 13 states and 715 transitions. [2021-03-25 09:36:04,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 656 places, 726 transitions, 19948 flow [2021-03-25 09:36:06,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 646 places, 726 transitions, 19592 flow, removed 124 selfloop flow, removed 10 redundant places. [2021-03-25 09:36:06,097 INFO L241 Difference]: Finished difference. Result has 648 places, 716 transitions, 18251 flow [2021-03-25 09:36:06,098 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=17293, PETRI_DIFFERENCE_MINUEND_PLACES=634, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=705, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=646, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=18251, PETRI_PLACES=648, PETRI_TRANSITIONS=716} [2021-03-25 09:36:06,098 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 587 predicate places. [2021-03-25 09:36:06,098 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:36:06,098 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 648 places, 716 transitions, 18251 flow [2021-03-25 09:36:06,098 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 648 places, 716 transitions, 18251 flow [2021-03-25 09:36:06,105 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 648 places, 716 transitions, 18251 flow [2021-03-25 09:36:06,527 INFO L129 PetriNetUnfolder]: 635/1620 cut-off events. [2021-03-25 09:36:06,527 INFO L130 PetriNetUnfolder]: For 102080/102130 co-relation queries the response was YES. [2021-03-25 09:36:06,560 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17097 conditions, 1620 events. 635/1620 cut-off events. For 102080/102130 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 12575 event pairs, 16 based on Foata normal form. 19/1398 useless extension candidates. Maximal degree in co-relation 16792. Up to 305 conditions per place. [2021-03-25 09:36:06,590 INFO L142 LiptonReduction]: Number of co-enabled transitions 3300 [2021-03-25 09:36:06,649 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:36:06,650 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:36:06,650 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 552 [2021-03-25 09:36:06,650 INFO L480 AbstractCegarLoop]: Abstraction has has 648 places, 716 transitions, 18251 flow [2021-03-25 09:36:06,650 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:06,650 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:36:06,650 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:36:06,650 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2021-03-25 09:36:06,650 INFO L428 AbstractCegarLoop]: === Iteration 244 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:36:06,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:36:06,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1002363633, now seen corresponding path program 7 times [2021-03-25 09:36:06,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:36:06,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835102949] [2021-03-25 09:36:06,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:36:06,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:36:06,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:06,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:36:06,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:06,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:36:06,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:06,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:06,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:06,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:06,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:06,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:06,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:06,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:06,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:06,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:06,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:06,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:06,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:06,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:06,743 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:36:06,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:36:06,759 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:36:06,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:06,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:36:06,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835102949] [2021-03-25 09:36:06,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:36:06,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:36:06,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152259328] [2021-03-25 09:36:06,761 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:36:06,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:36:06,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:36:06,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:36:06,762 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 166 [2021-03-25 09:36:06,762 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 648 places, 716 transitions, 18251 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:06,762 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:36:06,762 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 166 [2021-03-25 09:36:06,762 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:36:07,925 INFO L129 PetriNetUnfolder]: 725/1796 cut-off events. [2021-03-25 09:36:07,926 INFO L130 PetriNetUnfolder]: For 121284/121290 co-relation queries the response was YES. [2021-03-25 09:36:07,958 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20233 conditions, 1796 events. 725/1796 cut-off events. For 121284/121290 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 13720 event pairs, 7 based on Foata normal form. 7/1539 useless extension candidates. Maximal degree in co-relation 19924. Up to 955 conditions per place. [2021-03-25 09:36:07,966 INFO L132 encePairwiseOnDemand]: 145/166 looper letters, 648 selfloop transitions, 78 changer transitions 0/744 dead transitions. [2021-03-25 09:36:07,966 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 666 places, 744 transitions, 21200 flow [2021-03-25 09:36:07,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-25 09:36:07,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-25 09:36:07,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1010 transitions. [2021-03-25 09:36:07,968 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3202282815472416 [2021-03-25 09:36:07,968 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1010 transitions. [2021-03-25 09:36:07,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1010 transitions. [2021-03-25 09:36:07,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:36:07,968 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1010 transitions. [2021-03-25 09:36:07,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 53.1578947368421) internal successors, (1010), 19 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:07,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 166.0) internal successors, (3320), 20 states have internal predecessors, (3320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:07,969 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 166.0) internal successors, (3320), 20 states have internal predecessors, (3320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:07,969 INFO L185 Difference]: Start difference. First operand has 648 places, 716 transitions, 18251 flow. Second operand 19 states and 1010 transitions. [2021-03-25 09:36:07,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 666 places, 744 transitions, 21200 flow [2021-03-25 09:36:09,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 659 places, 744 transitions, 20592 flow, removed 283 selfloop flow, removed 7 redundant places. [2021-03-25 09:36:09,110 INFO L241 Difference]: Finished difference. Result has 666 places, 732 transitions, 18885 flow [2021-03-25 09:36:09,110 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=17647, PETRI_DIFFERENCE_MINUEND_PLACES=641, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=716, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=646, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=18885, PETRI_PLACES=666, PETRI_TRANSITIONS=732} [2021-03-25 09:36:09,111 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 605 predicate places. [2021-03-25 09:36:09,111 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:36:09,111 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 666 places, 732 transitions, 18885 flow [2021-03-25 09:36:09,111 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 666 places, 732 transitions, 18885 flow [2021-03-25 09:36:09,117 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 666 places, 732 transitions, 18885 flow [2021-03-25 09:36:09,527 INFO L129 PetriNetUnfolder]: 656/1678 cut-off events. [2021-03-25 09:36:09,527 INFO L130 PetriNetUnfolder]: For 117335/117377 co-relation queries the response was YES. [2021-03-25 09:36:09,561 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18004 conditions, 1678 events. 656/1678 cut-off events. For 117335/117377 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 13157 event pairs, 15 based on Foata normal form. 18/1443 useless extension candidates. Maximal degree in co-relation 17693. Up to 318 conditions per place. [2021-03-25 09:36:09,590 INFO L142 LiptonReduction]: Number of co-enabled transitions 3396 [2021-03-25 09:36:09,649 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:36:09,649 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:36:09,649 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 538 [2021-03-25 09:36:09,649 INFO L480 AbstractCegarLoop]: Abstraction has has 666 places, 732 transitions, 18885 flow [2021-03-25 09:36:09,649 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:09,649 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:36:09,649 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:36:09,649 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2021-03-25 09:36:09,650 INFO L428 AbstractCegarLoop]: === Iteration 245 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:36:09,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:36:09,650 INFO L82 PathProgramCache]: Analyzing trace with hash -863904040, now seen corresponding path program 5 times [2021-03-25 09:36:09,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:36:09,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628584341] [2021-03-25 09:36:09,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:36:09,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:36:09,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:09,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:36:09,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:09,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:36:09,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:09,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:36:09,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:09,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:09,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:09,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:09,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:09,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:09,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:09,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:09,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:09,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:09,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:09,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:09,731 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:36:09,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:36:09,738 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:36:09,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:09,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:36:09,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628584341] [2021-03-25 09:36:09,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:36:09,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:36:09,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76487161] [2021-03-25 09:36:09,746 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:36:09,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:36:09,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:36:09,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:36:09,747 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 166 [2021-03-25 09:36:09,747 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 666 places, 732 transitions, 18885 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:09,747 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:36:09,747 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 166 [2021-03-25 09:36:09,747 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:36:11,133 INFO L129 PetriNetUnfolder]: 727/1805 cut-off events. [2021-03-25 09:36:11,133 INFO L130 PetriNetUnfolder]: For 123031/123035 co-relation queries the response was YES. [2021-03-25 09:36:11,172 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20265 conditions, 1805 events. 727/1805 cut-off events. For 123031/123035 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 13918 event pairs, 5 based on Foata normal form. 5/1542 useless extension candidates. Maximal degree in co-relation 19950. Up to 969 conditions per place. [2021-03-25 09:36:11,182 INFO L132 encePairwiseOnDemand]: 150/166 looper letters, 647 selfloop transitions, 80 changer transitions 0/745 dead transitions. [2021-03-25 09:36:11,182 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 679 places, 745 transitions, 20682 flow [2021-03-25 09:36:11,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:36:11,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:36:11,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 767 transitions. [2021-03-25 09:36:11,183 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3300344234079174 [2021-03-25 09:36:11,183 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 767 transitions. [2021-03-25 09:36:11,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 767 transitions. [2021-03-25 09:36:11,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:36:11,183 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 767 transitions. [2021-03-25 09:36:11,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 54.785714285714285) internal successors, (767), 14 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:11,185 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 166.0) internal successors, (2490), 15 states have internal predecessors, (2490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:11,185 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 166.0) internal successors, (2490), 15 states have internal predecessors, (2490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:11,185 INFO L185 Difference]: Start difference. First operand has 666 places, 732 transitions, 18885 flow. Second operand 14 states and 767 transitions. [2021-03-25 09:36:11,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 679 places, 745 transitions, 20682 flow [2021-03-25 09:36:12,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 670 places, 745 transitions, 19910 flow, removed 351 selfloop flow, removed 9 redundant places. [2021-03-25 09:36:12,551 INFO L241 Difference]: Finished difference. Result has 672 places, 735 transitions, 18553 flow [2021-03-25 09:36:12,552 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=18113, PETRI_DIFFERENCE_MINUEND_PLACES=657, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=732, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=653, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=18553, PETRI_PLACES=672, PETRI_TRANSITIONS=735} [2021-03-25 09:36:12,552 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 611 predicate places. [2021-03-25 09:36:12,552 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:36:12,552 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 672 places, 735 transitions, 18553 flow [2021-03-25 09:36:12,552 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 672 places, 735 transitions, 18553 flow [2021-03-25 09:36:12,558 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 672 places, 735 transitions, 18553 flow [2021-03-25 09:36:13,109 INFO L129 PetriNetUnfolder]: 653/1670 cut-off events. [2021-03-25 09:36:13,109 INFO L130 PetriNetUnfolder]: For 107416/107459 co-relation queries the response was YES. [2021-03-25 09:36:13,139 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17636 conditions, 1670 events. 653/1670 cut-off events. For 107416/107459 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 13052 event pairs, 18 based on Foata normal form. 19/1439 useless extension candidates. Maximal degree in co-relation 17323. Up to 313 conditions per place. [2021-03-25 09:36:13,169 INFO L142 LiptonReduction]: Number of co-enabled transitions 3416 [2021-03-25 09:36:13,228 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:36:13,228 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:36:13,229 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 677 [2021-03-25 09:36:13,229 INFO L480 AbstractCegarLoop]: Abstraction has has 672 places, 735 transitions, 18553 flow [2021-03-25 09:36:13,230 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:13,230 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:36:13,230 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:36:13,230 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2021-03-25 09:36:13,230 INFO L428 AbstractCegarLoop]: === Iteration 246 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:36:13,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:36:13,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1801627521, now seen corresponding path program 1 times [2021-03-25 09:36:13,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:36:13,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312815131] [2021-03-25 09:36:13,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:36:13,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:36:13,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:13,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:36:13,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:13,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:36:13,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:13,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:13,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:13,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:13,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:13,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:13,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:13,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:13,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:13,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:13,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:13,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:13,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:13,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:13,323 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:36:13,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:36:13,327 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:36:13,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:13,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:36:13,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312815131] [2021-03-25 09:36:13,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:36:13,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:36:13,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720537434] [2021-03-25 09:36:13,329 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:36:13,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:36:13,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:36:13,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:36:13,330 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 166 [2021-03-25 09:36:13,330 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 672 places, 735 transitions, 18553 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:13,330 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:36:13,330 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 166 [2021-03-25 09:36:13,330 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:36:14,338 INFO L129 PetriNetUnfolder]: 736/1837 cut-off events. [2021-03-25 09:36:14,338 INFO L130 PetriNetUnfolder]: For 118946/118952 co-relation queries the response was YES. [2021-03-25 09:36:14,375 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20202 conditions, 1837 events. 736/1837 cut-off events. For 118946/118952 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 14250 event pairs, 6 based on Foata normal form. 7/1571 useless extension candidates. Maximal degree in co-relation 19885. Up to 993 conditions per place. [2021-03-25 09:36:14,383 INFO L132 encePairwiseOnDemand]: 151/166 looper letters, 682 selfloop transitions, 49 changer transitions 0/749 dead transitions. [2021-03-25 09:36:14,383 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 683 places, 749 transitions, 20536 flow [2021-03-25 09:36:14,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:36:14,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:36:14,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 655 transitions. [2021-03-25 09:36:14,384 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3288152610441767 [2021-03-25 09:36:14,384 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 655 transitions. [2021-03-25 09:36:14,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 655 transitions. [2021-03-25 09:36:14,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:36:14,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 655 transitions. [2021-03-25 09:36:14,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 54.583333333333336) internal successors, (655), 12 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:14,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 166.0) internal successors, (2158), 13 states have internal predecessors, (2158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:14,386 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 166.0) internal successors, (2158), 13 states have internal predecessors, (2158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:14,386 INFO L185 Difference]: Start difference. First operand has 672 places, 735 transitions, 18553 flow. Second operand 12 states and 655 transitions. [2021-03-25 09:36:14,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 683 places, 749 transitions, 20536 flow [2021-03-25 09:36:15,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 671 places, 749 transitions, 20239 flow, removed 93 selfloop flow, removed 12 redundant places. [2021-03-25 09:36:15,611 INFO L241 Difference]: Finished difference. Result has 673 places, 742 transitions, 18873 flow [2021-03-25 09:36:15,611 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=18256, PETRI_DIFFERENCE_MINUEND_PLACES=660, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=735, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=689, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=18873, PETRI_PLACES=673, PETRI_TRANSITIONS=742} [2021-03-25 09:36:15,611 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 612 predicate places. [2021-03-25 09:36:15,611 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:36:15,611 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 673 places, 742 transitions, 18873 flow [2021-03-25 09:36:15,611 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 673 places, 742 transitions, 18873 flow [2021-03-25 09:36:15,618 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 673 places, 742 transitions, 18873 flow [2021-03-25 09:36:16,059 INFO L129 PetriNetUnfolder]: 654/1678 cut-off events. [2021-03-25 09:36:16,059 INFO L130 PetriNetUnfolder]: For 111729/111772 co-relation queries the response was YES. [2021-03-25 09:36:16,098 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17838 conditions, 1678 events. 654/1678 cut-off events. For 111729/111772 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 13211 event pairs, 18 based on Foata normal form. 19/1447 useless extension candidates. Maximal degree in co-relation 17523. Up to 317 conditions per place. [2021-03-25 09:36:16,132 INFO L142 LiptonReduction]: Number of co-enabled transitions 3476 [2021-03-25 09:36:16,193 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:36:16,193 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:36:16,193 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 582 [2021-03-25 09:36:16,193 INFO L480 AbstractCegarLoop]: Abstraction has has 673 places, 742 transitions, 18873 flow [2021-03-25 09:36:16,193 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:16,193 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:36:16,193 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:36:16,193 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2021-03-25 09:36:16,194 INFO L428 AbstractCegarLoop]: === Iteration 247 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:36:16,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:36:16,194 INFO L82 PathProgramCache]: Analyzing trace with hash 501643249, now seen corresponding path program 2 times [2021-03-25 09:36:16,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:36:16,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947289824] [2021-03-25 09:36:16,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:36:16,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:36:16,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:16,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:36:16,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:16,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:36:16,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:16,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:16,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:16,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:16,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:16,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:16,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:16,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:16,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:16,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:16,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:16,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:16,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:16,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:16,296 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:36:16,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:36:16,313 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:36:16,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:16,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:36:16,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947289824] [2021-03-25 09:36:16,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:36:16,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:36:16,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704127195] [2021-03-25 09:36:16,316 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:36:16,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:36:16,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:36:16,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:36:16,316 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 166 [2021-03-25 09:36:16,317 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 673 places, 742 transitions, 18873 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:16,317 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:36:16,317 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 166 [2021-03-25 09:36:16,317 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:36:17,695 INFO L129 PetriNetUnfolder]: 739/1854 cut-off events. [2021-03-25 09:36:17,695 INFO L130 PetriNetUnfolder]: For 119893/119906 co-relation queries the response was YES. [2021-03-25 09:36:17,727 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20404 conditions, 1854 events. 739/1854 cut-off events. For 119893/119906 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 14436 event pairs, 11 based on Foata normal form. 14/1589 useless extension candidates. Maximal degree in co-relation 20085. Up to 973 conditions per place. [2021-03-25 09:36:17,736 INFO L132 encePairwiseOnDemand]: 151/166 looper letters, 667 selfloop transitions, 71 changer transitions 0/756 dead transitions. [2021-03-25 09:36:17,736 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 687 places, 756 transitions, 20775 flow [2021-03-25 09:36:17,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 09:36:17,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 09:36:17,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 815 transitions. [2021-03-25 09:36:17,737 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3273092369477912 [2021-03-25 09:36:17,737 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 815 transitions. [2021-03-25 09:36:17,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 815 transitions. [2021-03-25 09:36:17,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:36:17,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 815 transitions. [2021-03-25 09:36:17,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 54.333333333333336) internal successors, (815), 15 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:17,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 166.0) internal successors, (2656), 16 states have internal predecessors, (2656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:17,739 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 166.0) internal successors, (2656), 16 states have internal predecessors, (2656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:17,739 INFO L185 Difference]: Start difference. First operand has 673 places, 742 transitions, 18873 flow. Second operand 15 states and 815 transitions. [2021-03-25 09:36:17,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 687 places, 756 transitions, 20775 flow [2021-03-25 09:36:18,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 680 places, 756 transitions, 20467 flow, removed 136 selfloop flow, removed 7 redundant places. [2021-03-25 09:36:19,009 INFO L241 Difference]: Finished difference. Result has 683 places, 744 transitions, 18938 flow [2021-03-25 09:36:19,010 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=18565, PETRI_DIFFERENCE_MINUEND_PLACES=666, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=742, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=671, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=18938, PETRI_PLACES=683, PETRI_TRANSITIONS=744} [2021-03-25 09:36:19,010 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 622 predicate places. [2021-03-25 09:36:19,010 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:36:19,010 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 683 places, 744 transitions, 18938 flow [2021-03-25 09:36:19,010 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 683 places, 744 transitions, 18938 flow [2021-03-25 09:36:19,016 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 683 places, 744 transitions, 18938 flow [2021-03-25 09:36:19,437 INFO L129 PetriNetUnfolder]: 668/1728 cut-off events. [2021-03-25 09:36:19,438 INFO L130 PetriNetUnfolder]: For 112522/112565 co-relation queries the response was YES. [2021-03-25 09:36:19,477 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18114 conditions, 1728 events. 668/1728 cut-off events. For 112522/112565 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 13731 event pairs, 16 based on Foata normal form. 19/1481 useless extension candidates. Maximal degree in co-relation 17795. Up to 319 conditions per place. [2021-03-25 09:36:19,511 INFO L142 LiptonReduction]: Number of co-enabled transitions 3502 [2021-03-25 09:36:19,576 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:36:19,576 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:36:19,576 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 566 [2021-03-25 09:36:19,576 INFO L480 AbstractCegarLoop]: Abstraction has has 683 places, 744 transitions, 18938 flow [2021-03-25 09:36:19,576 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:19,576 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:36:19,576 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:36:19,576 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2021-03-25 09:36:19,576 INFO L428 AbstractCegarLoop]: === Iteration 248 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:36:19,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:36:19,577 INFO L82 PathProgramCache]: Analyzing trace with hash -1945347873, now seen corresponding path program 8 times [2021-03-25 09:36:19,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:36:19,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083038813] [2021-03-25 09:36:19,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:36:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:36:19,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:19,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:36:19,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:19,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:36:19,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:19,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:19,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:19,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:19,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:19,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:19,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:19,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:19,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:19,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:19,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:19,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:19,639 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:36:19,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:36:19,650 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:36:19,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:36:19,663 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:36:19,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:19,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:36:19,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083038813] [2021-03-25 09:36:19,665 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:36:19,665 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:36:19,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292380134] [2021-03-25 09:36:19,666 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:36:19,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:36:19,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:36:19,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:36:19,666 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 166 [2021-03-25 09:36:19,667 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 683 places, 744 transitions, 18938 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:19,667 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:36:19,667 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 166 [2021-03-25 09:36:19,667 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:36:20,887 INFO L129 PetriNetUnfolder]: 753/1896 cut-off events. [2021-03-25 09:36:20,887 INFO L130 PetriNetUnfolder]: For 125264/125268 co-relation queries the response was YES. [2021-03-25 09:36:20,929 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20935 conditions, 1896 events. 753/1896 cut-off events. For 125264/125268 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 14881 event pairs, 9 based on Foata normal form. 5/1615 useless extension candidates. Maximal degree in co-relation 20612. Up to 975 conditions per place. [2021-03-25 09:36:20,938 INFO L132 encePairwiseOnDemand]: 146/166 looper letters, 671 selfloop transitions, 85 changer transitions 0/774 dead transitions. [2021-03-25 09:36:20,938 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 696 places, 774 transitions, 21391 flow [2021-03-25 09:36:20,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:36:20,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:36:20,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 761 transitions. [2021-03-25 09:36:20,940 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3274526678141136 [2021-03-25 09:36:20,940 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 761 transitions. [2021-03-25 09:36:20,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 761 transitions. [2021-03-25 09:36:20,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:36:20,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 761 transitions. [2021-03-25 09:36:20,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 54.357142857142854) internal successors, (761), 14 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:20,941 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 166.0) internal successors, (2490), 15 states have internal predecessors, (2490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:20,941 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 166.0) internal successors, (2490), 15 states have internal predecessors, (2490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:20,941 INFO L185 Difference]: Start difference. First operand has 683 places, 744 transitions, 18938 flow. Second operand 14 states and 761 transitions. [2021-03-25 09:36:20,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 696 places, 774 transitions, 21391 flow [2021-03-25 09:36:22,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 685 places, 774 transitions, 21164 flow, removed 62 selfloop flow, removed 11 redundant places. [2021-03-25 09:36:22,382 INFO L241 Difference]: Finished difference. Result has 691 places, 763 transitions, 19740 flow [2021-03-25 09:36:22,383 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=18711, PETRI_DIFFERENCE_MINUEND_PLACES=672, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=744, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=666, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=19740, PETRI_PLACES=691, PETRI_TRANSITIONS=763} [2021-03-25 09:36:22,383 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 630 predicate places. [2021-03-25 09:36:22,383 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:36:22,383 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 691 places, 763 transitions, 19740 flow [2021-03-25 09:36:22,383 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 691 places, 763 transitions, 19740 flow [2021-03-25 09:36:22,390 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 691 places, 763 transitions, 19740 flow [2021-03-25 09:36:22,966 INFO L129 PetriNetUnfolder]: 685/1772 cut-off events. [2021-03-25 09:36:22,966 INFO L130 PetriNetUnfolder]: For 123699/123733 co-relation queries the response was YES. [2021-03-25 09:36:22,997 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18790 conditions, 1772 events. 685/1772 cut-off events. For 123699/123733 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 14164 event pairs, 18 based on Foata normal form. 17/1516 useless extension candidates. Maximal degree in co-relation 18465. Up to 325 conditions per place. [2021-03-25 09:36:23,025 INFO L142 LiptonReduction]: Number of co-enabled transitions 3628 [2021-03-25 09:36:23,191 INFO L154 LiptonReduction]: Checked pairs total: 5 [2021-03-25 09:36:23,191 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:36:23,192 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 809 [2021-03-25 09:36:23,192 INFO L480 AbstractCegarLoop]: Abstraction has has 690 places, 762 transitions, 19728 flow [2021-03-25 09:36:23,192 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:23,192 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:36:23,192 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:36:23,192 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2021-03-25 09:36:23,192 INFO L428 AbstractCegarLoop]: === Iteration 249 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:36:23,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:36:23,192 INFO L82 PathProgramCache]: Analyzing trace with hash -315205407, now seen corresponding path program 9 times [2021-03-25 09:36:23,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:36:23,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539027159] [2021-03-25 09:36:23,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:36:23,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:36:23,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:23,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:36:23,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:23,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:36:23,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:23,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:23,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:23,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:23,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:23,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:23,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:23,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:23,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:23,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:23,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:23,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:23,275 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:36:23,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:36:23,289 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:36:23,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:36:23,306 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:36:23,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:23,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:36:23,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539027159] [2021-03-25 09:36:23,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:36:23,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:36:23,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898112724] [2021-03-25 09:36:23,308 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:36:23,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:36:23,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:36:23,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:36:23,309 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 167 [2021-03-25 09:36:23,309 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 690 places, 762 transitions, 19728 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:23,309 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:36:23,309 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 167 [2021-03-25 09:36:23,309 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:36:24,638 INFO L129 PetriNetUnfolder]: 762/1926 cut-off events. [2021-03-25 09:36:24,638 INFO L130 PetriNetUnfolder]: For 137918/137931 co-relation queries the response was YES. [2021-03-25 09:36:24,680 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21729 conditions, 1926 events. 762/1926 cut-off events. For 137918/137931 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 15213 event pairs, 14 based on Foata normal form. 14/1648 useless extension candidates. Maximal degree in co-relation 21400. Up to 969 conditions per place. [2021-03-25 09:36:24,689 INFO L132 encePairwiseOnDemand]: 146/167 looper letters, 665 selfloop transitions, 80 changer transitions 18/781 dead transitions. [2021-03-25 09:36:24,689 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 705 places, 781 transitions, 22231 flow [2021-03-25 09:36:24,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 09:36:24,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 09:36:24,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 861 transitions. [2021-03-25 09:36:24,690 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3222305389221557 [2021-03-25 09:36:24,690 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 861 transitions. [2021-03-25 09:36:24,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 861 transitions. [2021-03-25 09:36:24,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:36:24,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 861 transitions. [2021-03-25 09:36:24,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 53.8125) internal successors, (861), 16 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:24,692 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 167.0) internal successors, (2839), 17 states have internal predecessors, (2839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:24,692 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 167.0) internal successors, (2839), 17 states have internal predecessors, (2839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:24,692 INFO L185 Difference]: Start difference. First operand has 690 places, 762 transitions, 19728 flow. Second operand 16 states and 861 transitions. [2021-03-25 09:36:24,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 705 places, 781 transitions, 22231 flow [2021-03-25 09:36:26,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 701 places, 781 transitions, 21708 flow, removed 240 selfloop flow, removed 4 redundant places. [2021-03-25 09:36:26,213 INFO L241 Difference]: Finished difference. Result has 706 places, 751 transitions, 19594 flow [2021-03-25 09:36:26,214 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=19205, PETRI_DIFFERENCE_MINUEND_PLACES=686, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=762, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=684, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=19594, PETRI_PLACES=706, PETRI_TRANSITIONS=751} [2021-03-25 09:36:26,214 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 645 predicate places. [2021-03-25 09:36:26,214 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:36:26,214 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 706 places, 751 transitions, 19594 flow [2021-03-25 09:36:26,214 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 706 places, 751 transitions, 19594 flow [2021-03-25 09:36:26,220 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 695 places, 751 transitions, 19594 flow [2021-03-25 09:36:26,692 INFO L129 PetriNetUnfolder]: 676/1737 cut-off events. [2021-03-25 09:36:26,692 INFO L130 PetriNetUnfolder]: For 130668/130778 co-relation queries the response was YES. [2021-03-25 09:36:26,734 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19085 conditions, 1737 events. 676/1737 cut-off events. For 130668/130778 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 13831 event pairs, 20 based on Foata normal form. 20/1492 useless extension candidates. Maximal degree in co-relation 18754. Up to 331 conditions per place. [2021-03-25 09:36:26,769 INFO L142 LiptonReduction]: Number of co-enabled transitions 3518 [2021-03-25 09:36:26,836 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:36:26,836 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:36:26,836 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 622 [2021-03-25 09:36:26,836 INFO L480 AbstractCegarLoop]: Abstraction has has 695 places, 751 transitions, 19594 flow [2021-03-25 09:36:26,836 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:26,836 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:36:26,837 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:36:26,837 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2021-03-25 09:36:26,837 INFO L428 AbstractCegarLoop]: === Iteration 250 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:36:26,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:36:26,837 INFO L82 PathProgramCache]: Analyzing trace with hash -482162822, now seen corresponding path program 2 times [2021-03-25 09:36:26,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:36:26,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288717332] [2021-03-25 09:36:26,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:36:26,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:36:26,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:26,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:36:26,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:26,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:36:26,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:26,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:26,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:26,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:26,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:26,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:26,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:26,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:26,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:26,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:26,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:26,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:26,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:26,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:26,924 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:36:26,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:36:26,940 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:36:26,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:26,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:36:26,943 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288717332] [2021-03-25 09:36:26,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:36:26,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:36:26,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082710569] [2021-03-25 09:36:26,943 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:36:26,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:36:26,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:36:26,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:36:26,944 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 167 [2021-03-25 09:36:26,944 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 695 places, 751 transitions, 19594 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:26,944 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:36:26,944 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 167 [2021-03-25 09:36:26,944 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:36:28,330 INFO L129 PetriNetUnfolder]: 761/1918 cut-off events. [2021-03-25 09:36:28,330 INFO L130 PetriNetUnfolder]: For 147244/147250 co-relation queries the response was YES. [2021-03-25 09:36:28,371 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22162 conditions, 1918 events. 761/1918 cut-off events. For 147244/147250 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 15148 event pairs, 5 based on Foata normal form. 7/1633 useless extension candidates. Maximal degree in co-relation 21827. Up to 937 conditions per place. [2021-03-25 09:36:28,381 INFO L132 encePairwiseOnDemand]: 145/167 looper letters, 640 selfloop transitions, 123 changer transitions 0/781 dead transitions. [2021-03-25 09:36:28,381 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 708 places, 781 transitions, 22594 flow [2021-03-25 09:36:28,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:36:28,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:36:28,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 777 transitions. [2021-03-25 09:36:28,383 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3323353293413174 [2021-03-25 09:36:28,383 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 777 transitions. [2021-03-25 09:36:28,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 777 transitions. [2021-03-25 09:36:28,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:36:28,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 777 transitions. [2021-03-25 09:36:28,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 55.5) internal successors, (777), 14 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:28,384 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 167.0) internal successors, (2505), 15 states have internal predecessors, (2505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:28,384 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 167.0) internal successors, (2505), 15 states have internal predecessors, (2505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:28,384 INFO L185 Difference]: Start difference. First operand has 695 places, 751 transitions, 19594 flow. Second operand 14 states and 777 transitions. [2021-03-25 09:36:28,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 708 places, 781 transitions, 22594 flow [2021-03-25 09:36:29,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 690 places, 781 transitions, 22050 flow, removed 215 selfloop flow, removed 18 redundant places. [2021-03-25 09:36:29,792 INFO L241 Difference]: Finished difference. Result has 695 places, 766 transitions, 20586 flow [2021-03-25 09:36:29,793 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=19094, PETRI_DIFFERENCE_MINUEND_PLACES=677, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=751, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=635, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=20586, PETRI_PLACES=695, PETRI_TRANSITIONS=766} [2021-03-25 09:36:29,793 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 634 predicate places. [2021-03-25 09:36:29,793 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:36:29,793 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 695 places, 766 transitions, 20586 flow [2021-03-25 09:36:29,793 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 695 places, 766 transitions, 20586 flow [2021-03-25 09:36:29,800 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 695 places, 766 transitions, 20586 flow [2021-03-25 09:36:30,271 INFO L129 PetriNetUnfolder]: 685/1774 cut-off events. [2021-03-25 09:36:30,271 INFO L130 PetriNetUnfolder]: For 135749/135857 co-relation queries the response was YES. [2021-03-25 09:36:30,311 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19566 conditions, 1774 events. 685/1774 cut-off events. For 135749/135857 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 14173 event pairs, 17 based on Foata normal form. 17/1519 useless extension candidates. Maximal degree in co-relation 19238. Up to 337 conditions per place. [2021-03-25 09:36:30,346 INFO L142 LiptonReduction]: Number of co-enabled transitions 3608 [2021-03-25 09:36:30,413 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:36:30,413 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:36:30,413 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 620 [2021-03-25 09:36:30,413 INFO L480 AbstractCegarLoop]: Abstraction has has 695 places, 766 transitions, 20586 flow [2021-03-25 09:36:30,413 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:30,413 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:36:30,414 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:36:30,414 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2021-03-25 09:36:30,414 INFO L428 AbstractCegarLoop]: === Iteration 251 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:36:30,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:36:30,414 INFO L82 PathProgramCache]: Analyzing trace with hash -1015682801, now seen corresponding path program 3 times [2021-03-25 09:36:30,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:36:30,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737227111] [2021-03-25 09:36:30,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:36:30,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:36:30,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:30,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:36:30,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:30,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:36:30,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:30,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:30,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:30,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:30,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:30,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:30,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:30,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:30,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:30,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:30,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:30,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:30,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:30,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:30,494 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:36:30,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:36:30,498 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:36:30,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:30,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:36:30,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737227111] [2021-03-25 09:36:30,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:36:30,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:36:30,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281408929] [2021-03-25 09:36:30,500 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:36:30,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:36:30,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:36:30,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:36:30,501 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 167 [2021-03-25 09:36:30,501 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 695 places, 766 transitions, 20586 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:30,501 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:36:30,501 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 167 [2021-03-25 09:36:30,501 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:36:31,556 INFO L129 PetriNetUnfolder]: 761/1922 cut-off events. [2021-03-25 09:36:31,556 INFO L130 PetriNetUnfolder]: For 136151/136155 co-relation queries the response was YES. [2021-03-25 09:36:31,599 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22070 conditions, 1922 events. 761/1922 cut-off events. For 136151/136155 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 15185 event pairs, 15 based on Foata normal form. 5/1634 useless extension candidates. Maximal degree in co-relation 21738. Up to 1045 conditions per place. [2021-03-25 09:36:31,608 INFO L132 encePairwiseOnDemand]: 154/167 looper letters, 724 selfloop transitions, 31 changer transitions 0/773 dead transitions. [2021-03-25 09:36:31,608 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 704 places, 773 transitions, 22212 flow [2021-03-25 09:36:31,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:36:31,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:36:31,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 550 transitions. [2021-03-25 09:36:31,609 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32934131736526945 [2021-03-25 09:36:31,609 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 550 transitions. [2021-03-25 09:36:31,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 550 transitions. [2021-03-25 09:36:31,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:36:31,609 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 550 transitions. [2021-03-25 09:36:31,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 55.0) internal successors, (550), 10 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:31,610 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 167.0) internal successors, (1837), 11 states have internal predecessors, (1837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:31,610 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 167.0) internal successors, (1837), 11 states have internal predecessors, (1837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:31,610 INFO L185 Difference]: Start difference. First operand has 695 places, 766 transitions, 20586 flow. Second operand 10 states and 550 transitions. [2021-03-25 09:36:31,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 704 places, 773 transitions, 22212 flow [2021-03-25 09:36:33,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 701 places, 773 transitions, 21190 flow, removed 486 selfloop flow, removed 3 redundant places. [2021-03-25 09:36:33,202 INFO L241 Difference]: Finished difference. Result has 703 places, 767 transitions, 19723 flow [2021-03-25 09:36:33,202 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=19564, PETRI_DIFFERENCE_MINUEND_PLACES=692, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=766, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=735, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=19723, PETRI_PLACES=703, PETRI_TRANSITIONS=767} [2021-03-25 09:36:33,202 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 642 predicate places. [2021-03-25 09:36:33,203 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:36:33,203 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 703 places, 767 transitions, 19723 flow [2021-03-25 09:36:33,203 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 703 places, 767 transitions, 19723 flow [2021-03-25 09:36:33,212 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 703 places, 767 transitions, 19723 flow [2021-03-25 09:36:33,862 INFO L129 PetriNetUnfolder]: 692/1795 cut-off events. [2021-03-25 09:36:33,862 INFO L130 PetriNetUnfolder]: For 127851/127950 co-relation queries the response was YES. [2021-03-25 09:36:33,904 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19298 conditions, 1795 events. 692/1795 cut-off events. For 127851/127950 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 14405 event pairs, 15 based on Foata normal form. 16/1534 useless extension candidates. Maximal degree in co-relation 18967. Up to 330 conditions per place. [2021-03-25 09:36:33,940 INFO L142 LiptonReduction]: Number of co-enabled transitions 3620 [2021-03-25 09:36:34,005 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:36:34,005 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:36:34,006 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 803 [2021-03-25 09:36:34,006 INFO L480 AbstractCegarLoop]: Abstraction has has 703 places, 767 transitions, 19723 flow [2021-03-25 09:36:34,006 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:34,006 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:36:34,006 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:36:34,006 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2021-03-25 09:36:34,006 INFO L428 AbstractCegarLoop]: === Iteration 252 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:36:34,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:36:34,007 INFO L82 PathProgramCache]: Analyzing trace with hash 152392352, now seen corresponding path program 3 times [2021-03-25 09:36:34,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:36:34,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8657852] [2021-03-25 09:36:34,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:36:34,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:36:34,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:34,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:36:34,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:34,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:36:34,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:34,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:34,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:34,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:34,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:34,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:34,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:34,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:34,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:34,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:34,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:34,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:34,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:34,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:34,090 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:36:34,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:36:34,093 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:36:34,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:34,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:36:34,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8657852] [2021-03-25 09:36:34,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:36:34,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:36:34,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953175624] [2021-03-25 09:36:34,096 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:36:34,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:36:34,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:36:34,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:36:34,097 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 167 [2021-03-25 09:36:34,097 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 703 places, 767 transitions, 19723 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:34,097 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:36:34,097 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 167 [2021-03-25 09:36:34,097 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:36:35,327 INFO L129 PetriNetUnfolder]: 768/1948 cut-off events. [2021-03-25 09:36:35,327 INFO L130 PetriNetUnfolder]: For 130636/130642 co-relation queries the response was YES. [2021-03-25 09:36:35,371 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21690 conditions, 1948 events. 768/1948 cut-off events. For 130636/130642 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 15492 event pairs, 6 based on Foata normal form. 7/1655 useless extension candidates. Maximal degree in co-relation 21355. Up to 966 conditions per place. [2021-03-25 09:36:35,380 INFO L132 encePairwiseOnDemand]: 145/167 looper letters, 656 selfloop transitions, 111 changer transitions 0/785 dead transitions. [2021-03-25 09:36:35,380 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 714 places, 785 transitions, 21728 flow [2021-03-25 09:36:35,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:36:35,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:36:35,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 673 transitions. [2021-03-25 09:36:35,382 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.33582834331337325 [2021-03-25 09:36:35,382 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 673 transitions. [2021-03-25 09:36:35,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 673 transitions. [2021-03-25 09:36:35,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:36:35,382 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 673 transitions. [2021-03-25 09:36:35,382 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 56.083333333333336) internal successors, (673), 12 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:35,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 167.0) internal successors, (2171), 13 states have internal predecessors, (2171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:35,383 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 167.0) internal successors, (2171), 13 states have internal predecessors, (2171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:35,383 INFO L185 Difference]: Start difference. First operand has 703 places, 767 transitions, 19723 flow. Second operand 12 states and 673 transitions. [2021-03-25 09:36:35,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 714 places, 785 transitions, 21728 flow [2021-03-25 09:36:36,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 707 places, 785 transitions, 21585 flow, removed 48 selfloop flow, removed 7 redundant places. [2021-03-25 09:36:36,778 INFO L241 Difference]: Finished difference. Result has 710 places, 773 transitions, 20207 flow [2021-03-25 09:36:36,779 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=19580, PETRI_DIFFERENCE_MINUEND_PLACES=696, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=767, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=105, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=660, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=20207, PETRI_PLACES=710, PETRI_TRANSITIONS=773} [2021-03-25 09:36:36,779 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 649 predicate places. [2021-03-25 09:36:36,779 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:36:36,779 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 710 places, 773 transitions, 20207 flow [2021-03-25 09:36:36,779 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 710 places, 773 transitions, 20207 flow [2021-03-25 09:36:36,786 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 710 places, 773 transitions, 20207 flow [2021-03-25 09:36:37,263 INFO L129 PetriNetUnfolder]: 690/1799 cut-off events. [2021-03-25 09:36:37,263 INFO L130 PetriNetUnfolder]: For 131144/131173 co-relation queries the response was YES. [2021-03-25 09:36:37,303 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19405 conditions, 1799 events. 690/1799 cut-off events. For 131144/131173 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 14524 event pairs, 12 based on Foata normal form. 16/1538 useless extension candidates. Maximal degree in co-relation 19078. Up to 328 conditions per place. [2021-03-25 09:36:37,337 INFO L142 LiptonReduction]: Number of co-enabled transitions 3684 [2021-03-25 09:36:37,413 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:36:37,414 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:36:37,414 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 635 [2021-03-25 09:36:37,414 INFO L480 AbstractCegarLoop]: Abstraction has has 710 places, 773 transitions, 20207 flow [2021-03-25 09:36:37,414 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:37,414 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:36:37,414 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:36:37,415 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2021-03-25 09:36:37,415 INFO L428 AbstractCegarLoop]: === Iteration 253 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:36:37,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:36:37,415 INFO L82 PathProgramCache]: Analyzing trace with hash 953743397, now seen corresponding path program 4 times [2021-03-25 09:36:37,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:36:37,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304348634] [2021-03-25 09:36:37,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:36:37,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:36:37,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:37,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:36:37,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:37,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:36:37,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:37,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:37,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:37,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:37,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:37,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:37,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:37,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:37,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:37,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:37,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:37,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:37,492 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:36:37,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:36:37,506 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:36:37,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:36:37,511 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:36:37,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:37,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:36:37,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304348634] [2021-03-25 09:36:37,513 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:36:37,513 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:36:37,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411166223] [2021-03-25 09:36:37,513 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:36:37,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:36:37,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:36:37,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:36:37,514 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 167 [2021-03-25 09:36:37,514 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 710 places, 773 transitions, 20207 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:37,514 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:36:37,514 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 167 [2021-03-25 09:36:37,514 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:36:38,788 INFO L129 PetriNetUnfolder]: 770/1957 cut-off events. [2021-03-25 09:36:38,788 INFO L130 PetriNetUnfolder]: For 131604/131617 co-relation queries the response was YES. [2021-03-25 09:36:38,830 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21946 conditions, 1957 events. 770/1957 cut-off events. For 131604/131617 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 15559 event pairs, 17 based on Foata normal form. 14/1669 useless extension candidates. Maximal degree in co-relation 21608. Up to 1024 conditions per place. [2021-03-25 09:36:38,840 INFO L132 encePairwiseOnDemand]: 152/167 looper letters, 704 selfloop transitions, 60 changer transitions 2/784 dead transitions. [2021-03-25 09:36:38,840 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 723 places, 784 transitions, 21939 flow [2021-03-25 09:36:38,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:36:38,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:36:38,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 756 transitions. [2021-03-25 09:36:38,842 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32335329341317365 [2021-03-25 09:36:38,842 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 756 transitions. [2021-03-25 09:36:38,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 756 transitions. [2021-03-25 09:36:38,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:36:38,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 756 transitions. [2021-03-25 09:36:38,842 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 54.0) internal successors, (756), 14 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:38,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 167.0) internal successors, (2505), 15 states have internal predecessors, (2505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:38,843 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 167.0) internal successors, (2505), 15 states have internal predecessors, (2505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:38,843 INFO L185 Difference]: Start difference. First operand has 710 places, 773 transitions, 20207 flow. Second operand 14 states and 756 transitions. [2021-03-25 09:36:38,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 723 places, 784 transitions, 21939 flow [2021-03-25 09:36:40,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 718 places, 784 transitions, 21493 flow, removed 169 selfloop flow, removed 5 redundant places. [2021-03-25 09:36:40,430 INFO L241 Difference]: Finished difference. Result has 721 places, 774 transitions, 19946 flow [2021-03-25 09:36:40,430 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=19761, PETRI_DIFFERENCE_MINUEND_PLACES=705, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=773, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=713, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=19946, PETRI_PLACES=721, PETRI_TRANSITIONS=774} [2021-03-25 09:36:40,430 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 660 predicate places. [2021-03-25 09:36:40,430 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:36:40,430 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 721 places, 774 transitions, 19946 flow [2021-03-25 09:36:40,430 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 721 places, 774 transitions, 19946 flow [2021-03-25 09:36:40,437 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 721 places, 774 transitions, 19946 flow [2021-03-25 09:36:40,923 INFO L129 PetriNetUnfolder]: 694/1812 cut-off events. [2021-03-25 09:36:40,923 INFO L130 PetriNetUnfolder]: For 128242/128271 co-relation queries the response was YES. [2021-03-25 09:36:40,965 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19262 conditions, 1812 events. 694/1812 cut-off events. For 128242/128271 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 14621 event pairs, 9 based on Foata normal form. 16/1546 useless extension candidates. Maximal degree in co-relation 18932. Up to 322 conditions per place. [2021-03-25 09:36:41,002 INFO L142 LiptonReduction]: Number of co-enabled transitions 3684 [2021-03-25 09:36:41,076 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:36:41,076 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:36:41,076 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 646 [2021-03-25 09:36:41,076 INFO L480 AbstractCegarLoop]: Abstraction has has 721 places, 774 transitions, 19946 flow [2021-03-25 09:36:41,077 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:41,077 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:36:41,077 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:36:41,077 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2021-03-25 09:36:41,077 INFO L428 AbstractCegarLoop]: === Iteration 254 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:36:41,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:36:41,077 INFO L82 PathProgramCache]: Analyzing trace with hash 953119034, now seen corresponding path program 4 times [2021-03-25 09:36:41,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:36:41,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030319218] [2021-03-25 09:36:41,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:36:41,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:36:41,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:41,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:36:41,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:41,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:36:41,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:41,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:41,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:41,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:41,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:41,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:41,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:41,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:41,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:41,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:41,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:41,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:41,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:41,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:41,164 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:36:41,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:36:41,179 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:36:41,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:41,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:36:41,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030319218] [2021-03-25 09:36:41,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:36:41,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:36:41,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373225586] [2021-03-25 09:36:41,181 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:36:41,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:36:41,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:36:41,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:36:41,182 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 167 [2021-03-25 09:36:41,182 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 721 places, 774 transitions, 19946 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:41,182 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:36:41,182 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 167 [2021-03-25 09:36:41,182 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:36:42,598 INFO L129 PetriNetUnfolder]: 779/1989 cut-off events. [2021-03-25 09:36:42,598 INFO L130 PetriNetUnfolder]: For 136891/136895 co-relation queries the response was YES. [2021-03-25 09:36:42,644 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22247 conditions, 1989 events. 779/1989 cut-off events. For 136891/136895 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 15968 event pairs, 8 based on Foata normal form. 6/1686 useless extension candidates. Maximal degree in co-relation 21906. Up to 904 conditions per place. [2021-03-25 09:36:42,654 INFO L132 encePairwiseOnDemand]: 142/167 looper letters, 623 selfloop transitions, 163 changer transitions 0/804 dead transitions. [2021-03-25 09:36:42,654 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 732 places, 804 transitions, 22853 flow [2021-03-25 09:36:42,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:36:42,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:36:42,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 683 transitions. [2021-03-25 09:36:42,655 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3408183632734531 [2021-03-25 09:36:42,655 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 683 transitions. [2021-03-25 09:36:42,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 683 transitions. [2021-03-25 09:36:42,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:36:42,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 683 transitions. [2021-03-25 09:36:42,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 56.916666666666664) internal successors, (683), 12 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:42,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 167.0) internal successors, (2171), 13 states have internal predecessors, (2171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:42,657 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 167.0) internal successors, (2171), 13 states have internal predecessors, (2171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:42,657 INFO L185 Difference]: Start difference. First operand has 721 places, 774 transitions, 19946 flow. Second operand 12 states and 683 transitions. [2021-03-25 09:36:42,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 732 places, 804 transitions, 22853 flow [2021-03-25 09:36:44,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 718 places, 804 transitions, 22665 flow, removed 35 selfloop flow, removed 14 redundant places. [2021-03-25 09:36:44,276 INFO L241 Difference]: Finished difference. Result has 722 places, 787 transitions, 21078 flow [2021-03-25 09:36:44,276 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=19760, PETRI_DIFFERENCE_MINUEND_PLACES=707, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=774, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=153, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=618, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=21078, PETRI_PLACES=722, PETRI_TRANSITIONS=787} [2021-03-25 09:36:44,276 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 661 predicate places. [2021-03-25 09:36:44,276 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:36:44,276 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 722 places, 787 transitions, 21078 flow [2021-03-25 09:36:44,276 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 722 places, 787 transitions, 21078 flow [2021-03-25 09:36:44,283 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 722 places, 787 transitions, 21078 flow [2021-03-25 09:36:44,738 INFO L129 PetriNetUnfolder]: 704/1848 cut-off events. [2021-03-25 09:36:44,738 INFO L130 PetriNetUnfolder]: For 138236/138372 co-relation queries the response was YES. [2021-03-25 09:36:44,780 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20024 conditions, 1848 events. 704/1848 cut-off events. For 138236/138372 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 15035 event pairs, 9 based on Foata normal form. 17/1576 useless extension candidates. Maximal degree in co-relation 19692. Up to 330 conditions per place. [2021-03-25 09:36:44,815 INFO L142 LiptonReduction]: Number of co-enabled transitions 3764 [2021-03-25 09:36:44,890 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:36:44,891 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:36:44,891 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 615 [2021-03-25 09:36:44,891 INFO L480 AbstractCegarLoop]: Abstraction has has 722 places, 787 transitions, 21078 flow [2021-03-25 09:36:44,891 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:44,891 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:36:44,891 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:36:44,891 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2021-03-25 09:36:44,891 INFO L428 AbstractCegarLoop]: === Iteration 255 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:36:44,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:36:44,892 INFO L82 PathProgramCache]: Analyzing trace with hash 528707457, now seen corresponding path program 10 times [2021-03-25 09:36:44,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:36:44,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891239842] [2021-03-25 09:36:44,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:36:44,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:36:44,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:44,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:36:44,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:44,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:36:44,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:44,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:44,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:44,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:44,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:44,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:44,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:44,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:44,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:44,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:44,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:44,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:44,963 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:36:44,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:36:44,976 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:36:44,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:36:44,992 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:36:44,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:44,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:36:44,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891239842] [2021-03-25 09:36:44,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:36:44,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:36:44,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038749820] [2021-03-25 09:36:44,994 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:36:44,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:36:44,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:36:44,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:36:44,995 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 167 [2021-03-25 09:36:44,995 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 722 places, 787 transitions, 21078 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:44,995 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:36:44,995 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 167 [2021-03-25 09:36:44,995 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:36:46,483 INFO L129 PetriNetUnfolder]: 826/2097 cut-off events. [2021-03-25 09:36:46,483 INFO L130 PetriNetUnfolder]: For 170035/170041 co-relation queries the response was YES. [2021-03-25 09:36:46,534 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24758 conditions, 2097 events. 826/2097 cut-off events. For 170035/170041 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 16994 event pairs, 7 based on Foata normal form. 7/1775 useless extension candidates. Maximal degree in co-relation 24415. Up to 1023 conditions per place. [2021-03-25 09:36:46,545 INFO L132 encePairwiseOnDemand]: 146/167 looper letters, 697 selfloop transitions, 114 changer transitions 8/837 dead transitions. [2021-03-25 09:36:46,546 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 735 places, 837 transitions, 25831 flow [2021-03-25 09:36:46,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:36:46,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:36:46,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 777 transitions. [2021-03-25 09:36:46,547 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3323353293413174 [2021-03-25 09:36:46,547 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 777 transitions. [2021-03-25 09:36:46,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 777 transitions. [2021-03-25 09:36:46,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:36:46,547 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 777 transitions. [2021-03-25 09:36:46,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 55.5) internal successors, (777), 14 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:46,549 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 167.0) internal successors, (2505), 15 states have internal predecessors, (2505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:46,549 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 167.0) internal successors, (2505), 15 states have internal predecessors, (2505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:46,549 INFO L185 Difference]: Start difference. First operand has 722 places, 787 transitions, 21078 flow. Second operand 14 states and 777 transitions. [2021-03-25 09:36:46,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 735 places, 837 transitions, 25831 flow [2021-03-25 09:36:48,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 728 places, 837 transitions, 24959 flow, removed 363 selfloop flow, removed 7 redundant places. [2021-03-25 09:36:48,343 INFO L241 Difference]: Finished difference. Result has 733 places, 817 transitions, 23059 flow [2021-03-25 09:36:48,343 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=20218, PETRI_DIFFERENCE_MINUEND_PLACES=715, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=787, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=698, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=23059, PETRI_PLACES=733, PETRI_TRANSITIONS=817} [2021-03-25 09:36:48,343 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 672 predicate places. [2021-03-25 09:36:48,344 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:36:48,344 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 733 places, 817 transitions, 23059 flow [2021-03-25 09:36:48,344 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 733 places, 817 transitions, 23059 flow [2021-03-25 09:36:48,352 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 730 places, 817 transitions, 23059 flow [2021-03-25 09:36:48,999 INFO L129 PetriNetUnfolder]: 760/1964 cut-off events. [2021-03-25 09:36:48,999 INFO L130 PetriNetUnfolder]: For 167884/167920 co-relation queries the response was YES. [2021-03-25 09:36:49,039 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22400 conditions, 1964 events. 760/1964 cut-off events. For 167884/167920 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 16021 event pairs, 14 based on Foata normal form. 7/1663 useless extension candidates. Maximal degree in co-relation 22065. Up to 367 conditions per place. [2021-03-25 09:36:49,076 INFO L142 LiptonReduction]: Number of co-enabled transitions 3862 [2021-03-25 09:36:49,295 INFO L154 LiptonReduction]: Checked pairs total: 10 [2021-03-25 09:36:49,295 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 09:36:49,296 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 953 [2021-03-25 09:36:49,296 INFO L480 AbstractCegarLoop]: Abstraction has has 730 places, 817 transitions, 23156 flow [2021-03-25 09:36:49,296 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:49,296 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:36:49,296 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:36:49,296 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2021-03-25 09:36:49,296 INFO L428 AbstractCegarLoop]: === Iteration 256 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:36:49,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:36:49,296 INFO L82 PathProgramCache]: Analyzing trace with hash -95693409, now seen corresponding path program 5 times [2021-03-25 09:36:49,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:36:49,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177485809] [2021-03-25 09:36:49,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:36:49,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:36:49,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:49,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:36:49,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:49,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:36:49,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:49,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:49,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:49,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:49,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:49,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:49,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:49,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:49,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:49,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:49,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:49,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:49,385 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:36:49,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:36:49,400 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:36:49,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:36:49,415 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:36:49,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:49,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:36:49,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177485809] [2021-03-25 09:36:49,418 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:36:49,418 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:36:49,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133342401] [2021-03-25 09:36:49,418 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:36:49,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:36:49,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:36:49,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:36:49,419 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 169 [2021-03-25 09:36:49,419 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 730 places, 817 transitions, 23156 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:49,419 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:36:49,419 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 169 [2021-03-25 09:36:49,419 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:36:51,005 INFO L129 PetriNetUnfolder]: 824/2092 cut-off events. [2021-03-25 09:36:51,005 INFO L130 PetriNetUnfolder]: For 168421/168436 co-relation queries the response was YES. [2021-03-25 09:36:51,055 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24671 conditions, 2092 events. 824/2092 cut-off events. For 168421/168436 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 16925 event pairs, 11 based on Foata normal form. 16/1778 useless extension candidates. Maximal degree in co-relation 24329. Up to 1077 conditions per place. [2021-03-25 09:36:51,065 INFO L132 encePairwiseOnDemand]: 154/169 looper letters, 739 selfloop transitions, 66 changer transitions 4/827 dead transitions. [2021-03-25 09:36:51,066 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 745 places, 827 transitions, 24954 flow [2021-03-25 09:36:51,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 09:36:51,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 09:36:51,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 859 transitions. [2021-03-25 09:36:51,067 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3176775147928994 [2021-03-25 09:36:51,067 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 859 transitions. [2021-03-25 09:36:51,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 859 transitions. [2021-03-25 09:36:51,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:36:51,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 859 transitions. [2021-03-25 09:36:51,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 53.6875) internal successors, (859), 16 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:51,069 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 169.0) internal successors, (2873), 17 states have internal predecessors, (2873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:51,069 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 169.0) internal successors, (2873), 17 states have internal predecessors, (2873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:51,069 INFO L185 Difference]: Start difference. First operand has 730 places, 817 transitions, 23156 flow. Second operand 16 states and 859 transitions. [2021-03-25 09:36:51,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 745 places, 827 transitions, 24954 flow [2021-03-25 09:36:52,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 741 places, 827 transitions, 23176 flow, removed 874 selfloop flow, removed 4 redundant places. [2021-03-25 09:36:52,872 INFO L241 Difference]: Finished difference. Result has 743 places, 814 transitions, 21446 flow [2021-03-25 09:36:52,873 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=21378, PETRI_DIFFERENCE_MINUEND_PLACES=726, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=817, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=751, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=21446, PETRI_PLACES=743, PETRI_TRANSITIONS=814} [2021-03-25 09:36:52,873 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 682 predicate places. [2021-03-25 09:36:52,873 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:36:52,873 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 743 places, 814 transitions, 21446 flow [2021-03-25 09:36:52,873 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 743 places, 814 transitions, 21446 flow [2021-03-25 09:36:52,880 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 743 places, 814 transitions, 21446 flow [2021-03-25 09:36:53,411 INFO L129 PetriNetUnfolder]: 762/1976 cut-off events. [2021-03-25 09:36:53,411 INFO L130 PetriNetUnfolder]: For 145754/145819 co-relation queries the response was YES. [2021-03-25 09:36:53,457 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21513 conditions, 1976 events. 762/1976 cut-off events. For 145754/145819 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 16324 event pairs, 10 based on Foata normal form. 9/1674 useless extension candidates. Maximal degree in co-relation 21176. Up to 346 conditions per place. [2021-03-25 09:36:53,496 INFO L142 LiptonReduction]: Number of co-enabled transitions 3862 [2021-03-25 09:36:53,579 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:36:53,579 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:36:53,579 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 706 [2021-03-25 09:36:53,579 INFO L480 AbstractCegarLoop]: Abstraction has has 743 places, 814 transitions, 21446 flow [2021-03-25 09:36:53,580 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:53,580 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:36:53,580 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:36:53,580 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2021-03-25 09:36:53,580 INFO L428 AbstractCegarLoop]: === Iteration 257 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:36:53,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:36:53,580 INFO L82 PathProgramCache]: Analyzing trace with hash -2104850591, now seen corresponding path program 1 times [2021-03-25 09:36:53,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:36:53,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010219752] [2021-03-25 09:36:53,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:36:53,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:36:53,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:53,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:36:53,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:53,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:36:53,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:53,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:53,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:53,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:53,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:53,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:53,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:53,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:53,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:53,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:53,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:53,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:53,666 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:36:53,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:36:53,681 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:36:53,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:53,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:36:53,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010219752] [2021-03-25 09:36:53,684 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:36:53,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:36:53,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384361066] [2021-03-25 09:36:53,684 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:36:53,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:36:53,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:36:53,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:36:53,685 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 169 [2021-03-25 09:36:53,685 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 743 places, 814 transitions, 21446 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:53,685 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:36:53,685 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 169 [2021-03-25 09:36:53,685 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:36:55,075 INFO L129 PetriNetUnfolder]: 827/2086 cut-off events. [2021-03-25 09:36:55,075 INFO L130 PetriNetUnfolder]: For 145498/145502 co-relation queries the response was YES. [2021-03-25 09:36:55,128 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23730 conditions, 2086 events. 827/2086 cut-off events. For 145498/145502 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 16826 event pairs, 14 based on Foata normal form. 5/1763 useless extension candidates. Maximal degree in co-relation 23386. Up to 1073 conditions per place. [2021-03-25 09:36:55,139 INFO L132 encePairwiseOnDemand]: 149/169 looper letters, 731 selfloop transitions, 86 changer transitions 0/835 dead transitions. [2021-03-25 09:36:55,139 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 758 places, 835 transitions, 24207 flow [2021-03-25 09:36:55,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 09:36:55,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 09:36:55,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 873 transitions. [2021-03-25 09:36:55,140 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3228550295857988 [2021-03-25 09:36:55,140 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 873 transitions. [2021-03-25 09:36:55,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 873 transitions. [2021-03-25 09:36:55,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:36:55,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 873 transitions. [2021-03-25 09:36:55,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 54.5625) internal successors, (873), 16 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:55,142 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 169.0) internal successors, (2873), 17 states have internal predecessors, (2873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:55,142 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 169.0) internal successors, (2873), 17 states have internal predecessors, (2873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:55,142 INFO L185 Difference]: Start difference. First operand has 743 places, 814 transitions, 21446 flow. Second operand 16 states and 873 transitions. [2021-03-25 09:36:55,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 758 places, 835 transitions, 24207 flow [2021-03-25 09:36:56,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 742 places, 835 transitions, 24048 flow, removed 7 selfloop flow, removed 16 redundant places. [2021-03-25 09:36:56,938 INFO L241 Difference]: Finished difference. Result has 745 places, 822 transitions, 22073 flow [2021-03-25 09:36:56,938 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=21297, PETRI_DIFFERENCE_MINUEND_PLACES=727, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=814, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=733, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=22073, PETRI_PLACES=745, PETRI_TRANSITIONS=822} [2021-03-25 09:36:56,938 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 684 predicate places. [2021-03-25 09:36:56,938 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:36:56,938 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 745 places, 822 transitions, 22073 flow [2021-03-25 09:36:56,939 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 745 places, 822 transitions, 22073 flow [2021-03-25 09:36:56,947 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 745 places, 822 transitions, 22073 flow [2021-03-25 09:36:57,528 INFO L129 PetriNetUnfolder]: 780/2018 cut-off events. [2021-03-25 09:36:57,528 INFO L130 PetriNetUnfolder]: For 150697/150743 co-relation queries the response was YES. [2021-03-25 09:36:57,575 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21960 conditions, 2018 events. 780/2018 cut-off events. For 150697/150743 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 16664 event pairs, 7 based on Foata normal form. 0/1694 useless extension candidates. Maximal degree in co-relation 21622. Up to 354 conditions per place. [2021-03-25 09:36:57,618 INFO L142 LiptonReduction]: Number of co-enabled transitions 3882 [2021-03-25 09:36:57,699 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:36:57,699 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:36:57,699 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 761 [2021-03-25 09:36:57,699 INFO L480 AbstractCegarLoop]: Abstraction has has 745 places, 822 transitions, 22073 flow [2021-03-25 09:36:57,699 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:57,699 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:36:57,699 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:36:57,699 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2021-03-25 09:36:57,699 INFO L428 AbstractCegarLoop]: === Iteration 258 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:36:57,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:36:57,700 INFO L82 PathProgramCache]: Analyzing trace with hash -2004281048, now seen corresponding path program 5 times [2021-03-25 09:36:57,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:36:57,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466590413] [2021-03-25 09:36:57,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:36:57,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:36:57,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:57,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:36:57,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:57,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:36:57,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:57,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:57,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:57,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:57,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:57,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:57,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:57,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:57,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:57,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:57,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:57,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:57,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:36:57,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:36:57,788 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:36:57,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:36:57,803 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:36:57,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:36:57,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:36:57,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466590413] [2021-03-25 09:36:57,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:36:57,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:36:57,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485894584] [2021-03-25 09:36:57,806 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:36:57,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:36:57,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:36:57,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:36:57,807 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 169 [2021-03-25 09:36:57,807 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 745 places, 822 transitions, 22073 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:57,807 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:36:57,807 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 169 [2021-03-25 09:36:57,808 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:36:59,451 INFO L129 PetriNetUnfolder]: 822/2092 cut-off events. [2021-03-25 09:36:59,451 INFO L130 PetriNetUnfolder]: For 151694/151709 co-relation queries the response was YES. [2021-03-25 09:36:59,495 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23825 conditions, 2092 events. 822/2092 cut-off events. For 151694/151709 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 16912 event pairs, 7 based on Foata normal form. 17/1783 useless extension candidates. Maximal degree in co-relation 23478. Up to 995 conditions per place. [2021-03-25 09:36:59,506 INFO L132 encePairwiseOnDemand]: 144/169 looper letters, 675 selfloop transitions, 145 changer transitions 3/841 dead transitions. [2021-03-25 09:36:59,507 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 758 places, 841 transitions, 24244 flow [2021-03-25 09:36:59,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:36:59,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:36:59,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 780 transitions. [2021-03-25 09:36:59,508 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32967032967032966 [2021-03-25 09:36:59,508 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 780 transitions. [2021-03-25 09:36:59,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 780 transitions. [2021-03-25 09:36:59,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:36:59,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 780 transitions. [2021-03-25 09:36:59,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 55.714285714285715) internal successors, (780), 14 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:59,509 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 169.0) internal successors, (2535), 15 states have internal predecessors, (2535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:59,510 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 169.0) internal successors, (2535), 15 states have internal predecessors, (2535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:36:59,510 INFO L185 Difference]: Start difference. First operand has 745 places, 822 transitions, 22073 flow. Second operand 14 states and 780 transitions. [2021-03-25 09:36:59,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 758 places, 841 transitions, 24244 flow [2021-03-25 09:37:01,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 748 places, 841 transitions, 23794 flow, removed 166 selfloop flow, removed 10 redundant places. [2021-03-25 09:37:01,286 INFO L241 Difference]: Finished difference. Result has 751 places, 823 transitions, 21997 flow [2021-03-25 09:37:01,286 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=21625, PETRI_DIFFERENCE_MINUEND_PLACES=735, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=822, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=144, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=677, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=21997, PETRI_PLACES=751, PETRI_TRANSITIONS=823} [2021-03-25 09:37:01,286 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 690 predicate places. [2021-03-25 09:37:01,286 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:37:01,286 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 751 places, 823 transitions, 21997 flow [2021-03-25 09:37:01,286 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 751 places, 823 transitions, 21997 flow [2021-03-25 09:37:01,294 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 751 places, 823 transitions, 21997 flow [2021-03-25 09:37:01,850 INFO L129 PetriNetUnfolder]: 775/2011 cut-off events. [2021-03-25 09:37:01,850 INFO L130 PetriNetUnfolder]: For 143760/143780 co-relation queries the response was YES. [2021-03-25 09:37:01,899 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21888 conditions, 2011 events. 775/2011 cut-off events. For 143760/143780 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 16661 event pairs, 21 based on Foata normal form. 4/1694 useless extension candidates. Maximal degree in co-relation 21547. Up to 345 conditions per place. [2021-03-25 09:37:01,938 INFO L142 LiptonReduction]: Number of co-enabled transitions 3892 [2021-03-25 09:37:02,016 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:37:02,016 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:37:02,016 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 730 [2021-03-25 09:37:02,017 INFO L480 AbstractCegarLoop]: Abstraction has has 751 places, 823 transitions, 21997 flow [2021-03-25 09:37:02,017 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:02,017 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:37:02,017 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:37:02,017 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2021-03-25 09:37:02,017 INFO L428 AbstractCegarLoop]: === Iteration 259 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:37:02,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:37:02,017 INFO L82 PathProgramCache]: Analyzing trace with hash 1822752512, now seen corresponding path program 6 times [2021-03-25 09:37:02,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:37:02,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461614314] [2021-03-25 09:37:02,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:37:02,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:37:02,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:02,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:37:02,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:02,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:37:02,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:02,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:37:02,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:02,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:37:02,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:02,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:02,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:02,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:02,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:02,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:37:02,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:02,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:37:02,098 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:37:02,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:37:02,101 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:37:02,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:37:02,115 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:37:02,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:37:02,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:37:02,117 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461614314] [2021-03-25 09:37:02,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:37:02,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:37:02,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960378924] [2021-03-25 09:37:02,118 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:37:02,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:37:02,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:37:02,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:37:02,118 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 169 [2021-03-25 09:37:02,119 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 751 places, 823 transitions, 21997 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:02,119 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:37:02,119 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 169 [2021-03-25 09:37:02,119 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:37:03,666 INFO L129 PetriNetUnfolder]: 832/2113 cut-off events. [2021-03-25 09:37:03,667 INFO L130 PetriNetUnfolder]: For 149264/149266 co-relation queries the response was YES. [2021-03-25 09:37:03,721 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24102 conditions, 2113 events. 832/2113 cut-off events. For 149264/149266 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 17162 event pairs, 15 based on Foata normal form. 3/1785 useless extension candidates. Maximal degree in co-relation 23753. Up to 1084 conditions per place. [2021-03-25 09:37:03,731 INFO L132 encePairwiseOnDemand]: 149/169 looper letters, 734 selfloop transitions, 93 changer transitions 0/845 dead transitions. [2021-03-25 09:37:03,732 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 764 places, 845 transitions, 24319 flow [2021-03-25 09:37:03,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:37:03,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:37:03,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 776 transitions. [2021-03-25 09:37:03,733 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32797971259509723 [2021-03-25 09:37:03,733 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 776 transitions. [2021-03-25 09:37:03,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 776 transitions. [2021-03-25 09:37:03,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:37:03,733 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 776 transitions. [2021-03-25 09:37:03,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 55.42857142857143) internal successors, (776), 14 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:03,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 169.0) internal successors, (2535), 15 states have internal predecessors, (2535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:03,735 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 169.0) internal successors, (2535), 15 states have internal predecessors, (2535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:03,735 INFO L185 Difference]: Start difference. First operand has 751 places, 823 transitions, 21997 flow. Second operand 14 states and 776 transitions. [2021-03-25 09:37:03,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 764 places, 845 transitions, 24319 flow [2021-03-25 09:37:05,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 757 places, 845 transitions, 24113 flow, removed 11 selfloop flow, removed 7 redundant places. [2021-03-25 09:37:05,529 INFO L241 Difference]: Finished difference. Result has 759 places, 831 transitions, 22557 flow [2021-03-25 09:37:05,529 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=21795, PETRI_DIFFERENCE_MINUEND_PLACES=744, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=823, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=732, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=22557, PETRI_PLACES=759, PETRI_TRANSITIONS=831} [2021-03-25 09:37:05,529 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 698 predicate places. [2021-03-25 09:37:05,530 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:37:05,530 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 759 places, 831 transitions, 22557 flow [2021-03-25 09:37:05,530 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 759 places, 831 transitions, 22557 flow [2021-03-25 09:37:05,538 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 759 places, 831 transitions, 22557 flow [2021-03-25 09:37:06,127 INFO L129 PetriNetUnfolder]: 784/2037 cut-off events. [2021-03-25 09:37:06,127 INFO L130 PetriNetUnfolder]: For 149076/149078 co-relation queries the response was YES. [2021-03-25 09:37:06,176 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22294 conditions, 2037 events. 784/2037 cut-off events. For 149076/149078 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 16934 event pairs, 9 based on Foata normal form. 0/1713 useless extension candidates. Maximal degree in co-relation 21953. Up to 355 conditions per place. [2021-03-25 09:37:06,217 INFO L142 LiptonReduction]: Number of co-enabled transitions 3906 [2021-03-25 09:37:06,302 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:37:06,302 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:37:06,302 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 772 [2021-03-25 09:37:06,302 INFO L480 AbstractCegarLoop]: Abstraction has has 759 places, 831 transitions, 22557 flow [2021-03-25 09:37:06,302 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:06,302 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:37:06,302 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:37:06,302 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2021-03-25 09:37:06,302 INFO L428 AbstractCegarLoop]: === Iteration 260 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:37:06,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:37:06,303 INFO L82 PathProgramCache]: Analyzing trace with hash 892853490, now seen corresponding path program 1 times [2021-03-25 09:37:06,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:37:06,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053397684] [2021-03-25 09:37:06,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:37:06,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:37:06,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:06,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:37:06,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:06,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:37:06,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:06,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:37:06,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:06,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:06,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:06,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:06,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:06,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:06,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:06,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:06,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:06,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:37:06,378 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:37:06,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:37:06,382 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:37:06,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:37:06,386 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:37:06,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:37:06,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:37:06,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053397684] [2021-03-25 09:37:06,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:37:06,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:37:06,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126193228] [2021-03-25 09:37:06,389 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:37:06,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:37:06,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:37:06,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:37:06,390 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 169 [2021-03-25 09:37:06,390 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 759 places, 831 transitions, 22557 flow. Second operand has 9 states, 9 states have (on average 49.44444444444444) internal successors, (445), 9 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:06,390 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:37:06,390 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 169 [2021-03-25 09:37:06,390 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:37:07,898 INFO L129 PetriNetUnfolder]: 871/2204 cut-off events. [2021-03-25 09:37:07,898 INFO L130 PetriNetUnfolder]: For 184496/184500 co-relation queries the response was YES. [2021-03-25 09:37:07,953 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26373 conditions, 2204 events. 871/2204 cut-off events. For 184496/184500 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 18060 event pairs, 12 based on Foata normal form. 5/1868 useless extension candidates. Maximal degree in co-relation 26024. Up to 1075 conditions per place. [2021-03-25 09:37:07,964 INFO L132 encePairwiseOnDemand]: 149/169 looper letters, 723 selfloop transitions, 131 changer transitions 1/873 dead transitions. [2021-03-25 09:37:07,964 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 770 places, 873 transitions, 26728 flow [2021-03-25 09:37:07,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:37:07,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:37:07,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 683 transitions. [2021-03-25 09:37:07,966 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.33678500986193294 [2021-03-25 09:37:07,966 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 683 transitions. [2021-03-25 09:37:07,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 683 transitions. [2021-03-25 09:37:07,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:37:07,966 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 683 transitions. [2021-03-25 09:37:07,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 56.916666666666664) internal successors, (683), 12 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:07,967 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 169.0) internal successors, (2197), 13 states have internal predecessors, (2197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:07,967 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 169.0) internal successors, (2197), 13 states have internal predecessors, (2197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:07,967 INFO L185 Difference]: Start difference. First operand has 759 places, 831 transitions, 22557 flow. Second operand 12 states and 683 transitions. [2021-03-25 09:37:07,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 770 places, 873 transitions, 26728 flow [2021-03-25 09:37:09,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 760 places, 873 transitions, 26447 flow, removed 105 selfloop flow, removed 10 redundant places. [2021-03-25 09:37:09,979 INFO L241 Difference]: Finished difference. Result has 765 places, 858 transitions, 24405 flow [2021-03-25 09:37:09,979 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=22276, PETRI_DIFFERENCE_MINUEND_PLACES=749, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=831, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=711, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=24405, PETRI_PLACES=765, PETRI_TRANSITIONS=858} [2021-03-25 09:37:09,979 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 704 predicate places. [2021-03-25 09:37:09,979 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:37:09,979 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 765 places, 858 transitions, 24405 flow [2021-03-25 09:37:09,979 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 765 places, 858 transitions, 24405 flow [2021-03-25 09:37:09,988 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 765 places, 858 transitions, 24405 flow [2021-03-25 09:37:10,656 INFO L129 PetriNetUnfolder]: 822/2119 cut-off events. [2021-03-25 09:37:10,656 INFO L130 PetriNetUnfolder]: For 183999/184004 co-relation queries the response was YES. [2021-03-25 09:37:10,706 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24637 conditions, 2119 events. 822/2119 cut-off events. For 183999/184004 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 17792 event pairs, 15 based on Foata normal form. 3/1785 useless extension candidates. Maximal degree in co-relation 24290. Up to 383 conditions per place. [2021-03-25 09:37:10,749 INFO L142 LiptonReduction]: Number of co-enabled transitions 4060 [2021-03-25 09:37:10,832 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:37:10,832 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:37:10,832 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 853 [2021-03-25 09:37:10,832 INFO L480 AbstractCegarLoop]: Abstraction has has 765 places, 858 transitions, 24405 flow [2021-03-25 09:37:10,832 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 49.44444444444444) internal successors, (445), 9 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:10,832 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:37:10,832 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:37:10,832 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2021-03-25 09:37:10,832 INFO L428 AbstractCegarLoop]: === Iteration 261 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:37:10,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:37:10,833 INFO L82 PathProgramCache]: Analyzing trace with hash 338237461, now seen corresponding path program 11 times [2021-03-25 09:37:10,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:37:10,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182199133] [2021-03-25 09:37:10,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:37:10,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:37:10,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:10,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:37:10,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:10,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:37:10,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:10,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:37:10,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:10,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:10,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:10,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:10,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:10,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:10,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:10,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:10,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:10,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:10,919 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:37:10,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:37:10,934 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:37:10,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:37:10,950 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:37:10,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:37:10,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:37:10,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182199133] [2021-03-25 09:37:10,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:37:10,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:37:10,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776404109] [2021-03-25 09:37:10,953 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:37:10,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:37:10,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:37:10,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:37:10,954 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 169 [2021-03-25 09:37:10,954 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 765 places, 858 transitions, 24405 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:10,954 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:37:10,954 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 169 [2021-03-25 09:37:10,954 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:37:12,633 INFO L129 PetriNetUnfolder]: 895/2262 cut-off events. [2021-03-25 09:37:12,633 INFO L130 PetriNetUnfolder]: For 207411/207417 co-relation queries the response was YES. [2021-03-25 09:37:12,689 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27849 conditions, 2262 events. 895/2262 cut-off events. For 207411/207417 co-relation queries the response was YES. Maximal size of possible extension queue 212. Compared 18582 event pairs, 8 based on Foata normal form. 7/1914 useless extension candidates. Maximal degree in co-relation 27494. Up to 1061 conditions per place. [2021-03-25 09:37:12,701 INFO L132 encePairwiseOnDemand]: 147/169 looper letters, 707 selfloop transitions, 154 changer transitions 10/889 dead transitions. [2021-03-25 09:37:12,701 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 780 places, 889 transitions, 27931 flow [2021-03-25 09:37:12,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 09:37:12,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 09:37:12,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 879 transitions. [2021-03-25 09:37:12,702 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3250739644970414 [2021-03-25 09:37:12,702 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 879 transitions. [2021-03-25 09:37:12,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 879 transitions. [2021-03-25 09:37:12,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:37:12,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 879 transitions. [2021-03-25 09:37:12,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 54.9375) internal successors, (879), 16 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:12,704 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 169.0) internal successors, (2873), 17 states have internal predecessors, (2873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:12,704 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 169.0) internal successors, (2873), 17 states have internal predecessors, (2873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:12,704 INFO L185 Difference]: Start difference. First operand has 765 places, 858 transitions, 24405 flow. Second operand 16 states and 879 transitions. [2021-03-25 09:37:12,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 780 places, 889 transitions, 27931 flow [2021-03-25 09:37:14,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 779 places, 889 transitions, 27294 flow, removed 314 selfloop flow, removed 1 redundant places. [2021-03-25 09:37:14,995 INFO L241 Difference]: Finished difference. Result has 785 places, 864 transitions, 24921 flow [2021-03-25 09:37:14,996 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=23768, PETRI_DIFFERENCE_MINUEND_PLACES=764, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=858, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=142, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=713, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=24921, PETRI_PLACES=785, PETRI_TRANSITIONS=864} [2021-03-25 09:37:14,996 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 724 predicate places. [2021-03-25 09:37:14,996 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:37:14,996 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 785 places, 864 transitions, 24921 flow [2021-03-25 09:37:14,996 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 785 places, 864 transitions, 24921 flow [2021-03-25 09:37:15,005 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 782 places, 864 transitions, 24921 flow [2021-03-25 09:37:15,732 INFO L129 PetriNetUnfolder]: 822/2103 cut-off events. [2021-03-25 09:37:15,733 INFO L130 PetriNetUnfolder]: For 195224/195253 co-relation queries the response was YES. [2021-03-25 09:37:15,777 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25390 conditions, 2103 events. 822/2103 cut-off events. For 195224/195253 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 17404 event pairs, 21 based on Foata normal form. 8/1785 useless extension candidates. Maximal degree in co-relation 25043. Up to 401 conditions per place. [2021-03-25 09:37:15,816 INFO L142 LiptonReduction]: Number of co-enabled transitions 4048 [2021-03-25 09:37:15,900 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:37:15,900 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:37:15,900 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 904 [2021-03-25 09:37:15,900 INFO L480 AbstractCegarLoop]: Abstraction has has 782 places, 864 transitions, 24921 flow [2021-03-25 09:37:15,900 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:15,901 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:37:15,901 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:37:15,901 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2021-03-25 09:37:15,901 INFO L428 AbstractCegarLoop]: === Iteration 262 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:37:15,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:37:15,901 INFO L82 PathProgramCache]: Analyzing trace with hash -140035700, now seen corresponding path program 7 times [2021-03-25 09:37:15,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:37:15,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809839769] [2021-03-25 09:37:15,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:37:15,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:37:15,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:15,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:37:15,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:15,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:37:15,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:15,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:37:15,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:15,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:37:15,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:15,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:15,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:15,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:15,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:15,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:37:15,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:15,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:37:15,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:15,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:15,999 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:37:15,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:37:16,015 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:37:16,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:37:16,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:37:16,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809839769] [2021-03-25 09:37:16,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:37:16,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:37:16,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497701909] [2021-03-25 09:37:16,018 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:37:16,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:37:16,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:37:16,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:37:16,019 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 169 [2021-03-25 09:37:16,019 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 782 places, 864 transitions, 24921 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:16,019 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:37:16,019 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 169 [2021-03-25 09:37:16,019 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:37:17,804 INFO L129 PetriNetUnfolder]: 888/2235 cut-off events. [2021-03-25 09:37:17,804 INFO L130 PetriNetUnfolder]: For 202081/202094 co-relation queries the response was YES. [2021-03-25 09:37:17,866 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27741 conditions, 2235 events. 888/2235 cut-off events. For 202081/202094 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 18299 event pairs, 12 based on Foata normal form. 14/1901 useless extension candidates. Maximal degree in co-relation 27391. Up to 1114 conditions per place. [2021-03-25 09:37:17,879 INFO L132 encePairwiseOnDemand]: 149/169 looper letters, 714 selfloop transitions, 152 changer transitions 0/884 dead transitions. [2021-03-25 09:37:17,879 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 796 places, 884 transitions, 27388 flow [2021-03-25 09:37:17,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 09:37:17,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 09:37:17,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 827 transitions. [2021-03-25 09:37:17,881 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.326232741617357 [2021-03-25 09:37:17,881 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 827 transitions. [2021-03-25 09:37:17,881 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 827 transitions. [2021-03-25 09:37:17,881 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:37:17,881 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 827 transitions. [2021-03-25 09:37:17,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 55.13333333333333) internal successors, (827), 15 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:17,882 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 169.0) internal successors, (2704), 16 states have internal predecessors, (2704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:17,882 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 169.0) internal successors, (2704), 16 states have internal predecessors, (2704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:17,883 INFO L185 Difference]: Start difference. First operand has 782 places, 864 transitions, 24921 flow. Second operand 15 states and 827 transitions. [2021-03-25 09:37:17,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 796 places, 884 transitions, 27388 flow [2021-03-25 09:37:20,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 782 places, 884 transitions, 26792 flow, removed 245 selfloop flow, removed 14 redundant places. [2021-03-25 09:37:20,180 INFO L241 Difference]: Finished difference. Result has 785 places, 867 transitions, 25038 flow [2021-03-25 09:37:20,180 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=24339, PETRI_DIFFERENCE_MINUEND_PLACES=768, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=864, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=149, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=712, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=25038, PETRI_PLACES=785, PETRI_TRANSITIONS=867} [2021-03-25 09:37:20,180 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 724 predicate places. [2021-03-25 09:37:20,180 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:37:20,180 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 785 places, 867 transitions, 25038 flow [2021-03-25 09:37:20,181 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 785 places, 867 transitions, 25038 flow [2021-03-25 09:37:20,190 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 785 places, 867 transitions, 25038 flow [2021-03-25 09:37:20,936 INFO L129 PetriNetUnfolder]: 826/2116 cut-off events. [2021-03-25 09:37:20,936 INFO L130 PetriNetUnfolder]: For 185829/185842 co-relation queries the response was YES. [2021-03-25 09:37:20,975 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25428 conditions, 2116 events. 826/2116 cut-off events. For 185829/185842 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 17544 event pairs, 22 based on Foata normal form. 5/1794 useless extension candidates. Maximal degree in co-relation 25077. Up to 399 conditions per place. [2021-03-25 09:37:21,011 INFO L142 LiptonReduction]: Number of co-enabled transitions 4064 [2021-03-25 09:37:21,093 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:37:21,093 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:37:21,094 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 914 [2021-03-25 09:37:21,094 INFO L480 AbstractCegarLoop]: Abstraction has has 785 places, 867 transitions, 25038 flow [2021-03-25 09:37:21,094 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:21,094 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:37:21,094 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:37:21,094 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2021-03-25 09:37:21,094 INFO L428 AbstractCegarLoop]: === Iteration 263 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:37:21,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:37:21,094 INFO L82 PathProgramCache]: Analyzing trace with hash 374835659, now seen corresponding path program 6 times [2021-03-25 09:37:21,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:37:21,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983437229] [2021-03-25 09:37:21,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:37:21,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:37:21,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:21,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:37:21,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:21,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:37:21,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:21,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:37:21,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:21,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:21,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:21,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:21,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:21,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:21,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:21,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:21,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:21,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:37:21,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:21,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:21,194 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:37:21,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:37:21,210 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:37:21,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:37:21,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:37:21,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983437229] [2021-03-25 09:37:21,212 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:37:21,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:37:21,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303004166] [2021-03-25 09:37:21,212 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:37:21,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:37:21,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:37:21,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:37:21,213 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 169 [2021-03-25 09:37:21,213 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 785 places, 867 transitions, 25038 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:21,213 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:37:21,213 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 169 [2021-03-25 09:37:21,213 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:37:22,954 INFO L129 PetriNetUnfolder]: 892/2255 cut-off events. [2021-03-25 09:37:22,954 INFO L130 PetriNetUnfolder]: For 192821/192836 co-relation queries the response was YES. [2021-03-25 09:37:23,016 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27706 conditions, 2255 events. 892/2255 cut-off events. For 192821/192836 co-relation queries the response was YES. Maximal size of possible extension queue 213. Compared 18514 event pairs, 16 based on Foata normal form. 17/1921 useless extension candidates. Maximal degree in co-relation 27344. Up to 1166 conditions per place. [2021-03-25 09:37:23,029 INFO L132 encePairwiseOnDemand]: 152/169 looper letters, 786 selfloop transitions, 66 changer transitions 11/881 dead transitions. [2021-03-25 09:37:23,029 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 800 places, 881 transitions, 27244 flow [2021-03-25 09:37:23,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 09:37:23,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 09:37:23,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 870 transitions. [2021-03-25 09:37:23,031 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3217455621301775 [2021-03-25 09:37:23,031 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 870 transitions. [2021-03-25 09:37:23,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 870 transitions. [2021-03-25 09:37:23,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:37:23,031 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 870 transitions. [2021-03-25 09:37:23,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 54.375) internal successors, (870), 16 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:23,032 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 169.0) internal successors, (2873), 17 states have internal predecessors, (2873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:23,032 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 169.0) internal successors, (2873), 17 states have internal predecessors, (2873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:23,033 INFO L185 Difference]: Start difference. First operand has 785 places, 867 transitions, 25038 flow. Second operand 16 states and 870 transitions. [2021-03-25 09:37:23,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 800 places, 881 transitions, 27244 flow [2021-03-25 09:37:25,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 789 places, 881 transitions, 26915 flow, removed 85 selfloop flow, removed 11 redundant places. [2021-03-25 09:37:25,307 INFO L241 Difference]: Finished difference. Result has 791 places, 860 transitions, 25065 flow [2021-03-25 09:37:25,308 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=24709, PETRI_DIFFERENCE_MINUEND_PLACES=774, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=867, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=802, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=25065, PETRI_PLACES=791, PETRI_TRANSITIONS=860} [2021-03-25 09:37:25,308 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 730 predicate places. [2021-03-25 09:37:25,308 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:37:25,308 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 791 places, 860 transitions, 25065 flow [2021-03-25 09:37:25,308 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 791 places, 860 transitions, 25065 flow [2021-03-25 09:37:25,318 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 785 places, 860 transitions, 25065 flow [2021-03-25 09:37:26,024 INFO L129 PetriNetUnfolder]: 822/2107 cut-off events. [2021-03-25 09:37:26,025 INFO L130 PetriNetUnfolder]: For 186016/186029 co-relation queries the response was YES. [2021-03-25 09:37:26,082 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25365 conditions, 2107 events. 822/2107 cut-off events. For 186016/186029 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 17560 event pairs, 23 based on Foata normal form. 5/1785 useless extension candidates. Maximal degree in co-relation 25013. Up to 398 conditions per place. [2021-03-25 09:37:26,131 INFO L142 LiptonReduction]: Number of co-enabled transitions 4040 [2021-03-25 09:37:26,223 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:37:26,223 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:37:26,223 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 915 [2021-03-25 09:37:26,223 INFO L480 AbstractCegarLoop]: Abstraction has has 785 places, 860 transitions, 25065 flow [2021-03-25 09:37:26,224 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:26,224 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:37:26,224 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:37:26,224 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2021-03-25 09:37:26,224 INFO L428 AbstractCegarLoop]: === Iteration 264 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:37:26,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:37:26,224 INFO L82 PathProgramCache]: Analyzing trace with hash 666154109, now seen corresponding path program 7 times [2021-03-25 09:37:26,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:37:26,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913139664] [2021-03-25 09:37:26,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:37:26,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:37:26,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:26,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:37:26,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:26,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:37:26,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:26,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:37:26,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:26,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:26,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:26,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:26,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:26,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:26,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:26,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:26,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:26,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:26,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:26,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:26,329 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:37:26,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:37:26,343 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:37:26,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:37:26,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:37:26,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913139664] [2021-03-25 09:37:26,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:37:26,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:37:26,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777729195] [2021-03-25 09:37:26,346 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:37:26,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:37:26,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:37:26,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:37:26,347 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 169 [2021-03-25 09:37:26,347 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 785 places, 860 transitions, 25065 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:26,347 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:37:26,347 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 169 [2021-03-25 09:37:26,347 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:37:27,775 INFO L129 PetriNetUnfolder]: 880/2212 cut-off events. [2021-03-25 09:37:27,775 INFO L130 PetriNetUnfolder]: For 186562/186568 co-relation queries the response was YES. [2021-03-25 09:37:27,836 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27326 conditions, 2212 events. 880/2212 cut-off events. For 186562/186568 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 18030 event pairs, 17 based on Foata normal form. 7/1876 useless extension candidates. Maximal degree in co-relation 26963. Up to 1172 conditions per place. [2021-03-25 09:37:27,849 INFO L132 encePairwiseOnDemand]: 153/169 looper letters, 798 selfloop transitions, 45 changer transitions 7/868 dead transitions. [2021-03-25 09:37:27,849 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 795 places, 868 transitions, 26829 flow [2021-03-25 09:37:27,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:37:27,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:37:27,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 610 transitions. [2021-03-25 09:37:27,851 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.328133405056482 [2021-03-25 09:37:27,851 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 610 transitions. [2021-03-25 09:37:27,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 610 transitions. [2021-03-25 09:37:27,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:37:27,851 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 610 transitions. [2021-03-25 09:37:27,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 55.45454545454545) internal successors, (610), 11 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:27,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 169.0) internal successors, (2028), 12 states have internal predecessors, (2028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:27,852 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 169.0) internal successors, (2028), 12 states have internal predecessors, (2028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:27,852 INFO L185 Difference]: Start difference. First operand has 785 places, 860 transitions, 25065 flow. Second operand 11 states and 610 transitions. [2021-03-25 09:37:27,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 795 places, 868 transitions, 26829 flow [2021-03-25 09:37:30,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 778 places, 868 transitions, 26343 flow, removed 175 selfloop flow, removed 17 redundant places. [2021-03-25 09:37:30,167 INFO L241 Difference]: Finished difference. Result has 779 places, 853 transitions, 24540 flow [2021-03-25 09:37:30,168 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=24579, PETRI_DIFFERENCE_MINUEND_PLACES=768, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=860, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=815, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=24540, PETRI_PLACES=779, PETRI_TRANSITIONS=853} [2021-03-25 09:37:30,168 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 718 predicate places. [2021-03-25 09:37:30,168 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:37:30,168 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 779 places, 853 transitions, 24540 flow [2021-03-25 09:37:30,168 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 779 places, 853 transitions, 24540 flow [2021-03-25 09:37:30,177 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 775 places, 853 transitions, 24540 flow [2021-03-25 09:37:30,839 INFO L129 PetriNetUnfolder]: 816/2081 cut-off events. [2021-03-25 09:37:30,840 INFO L130 PetriNetUnfolder]: For 180701/180714 co-relation queries the response was YES. [2021-03-25 09:37:30,901 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25035 conditions, 2081 events. 816/2081 cut-off events. For 180701/180714 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 17222 event pairs, 23 based on Foata normal form. 5/1765 useless extension candidates. Maximal degree in co-relation 24685. Up to 394 conditions per place. [2021-03-25 09:37:30,946 INFO L142 LiptonReduction]: Number of co-enabled transitions 3972 [2021-03-25 09:37:31,035 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:37:31,035 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:37:31,035 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 867 [2021-03-25 09:37:31,035 INFO L480 AbstractCegarLoop]: Abstraction has has 775 places, 853 transitions, 24540 flow [2021-03-25 09:37:31,035 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:31,035 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:37:31,035 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:37:31,036 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2021-03-25 09:37:31,036 INFO L428 AbstractCegarLoop]: === Iteration 265 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:37:31,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:37:31,036 INFO L82 PathProgramCache]: Analyzing trace with hash -1748083313, now seen corresponding path program 8 times [2021-03-25 09:37:31,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:37:31,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895369131] [2021-03-25 09:37:31,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:37:31,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:37:31,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:31,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:37:31,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:31,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:37:31,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:31,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:37:31,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:31,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:31,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:31,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:31,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:31,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:31,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:31,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:37:31,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:31,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:37:31,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:31,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:31,137 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:37:31,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:37:31,153 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:37:31,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:37:31,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:37:31,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895369131] [2021-03-25 09:37:31,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:37:31,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:37:31,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183383161] [2021-03-25 09:37:31,155 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:37:31,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:37:31,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:37:31,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:37:31,156 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 169 [2021-03-25 09:37:31,156 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 775 places, 853 transitions, 24540 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:31,156 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:37:31,156 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 169 [2021-03-25 09:37:31,156 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:37:32,766 INFO L129 PetriNetUnfolder]: 883/2222 cut-off events. [2021-03-25 09:37:32,766 INFO L130 PetriNetUnfolder]: For 191357/191370 co-relation queries the response was YES. [2021-03-25 09:37:32,819 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27527 conditions, 2222 events. 883/2222 cut-off events. For 191357/191370 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 18173 event pairs, 23 based on Foata normal form. 15/1892 useless extension candidates. Maximal degree in co-relation 27166. Up to 1159 conditions per place. [2021-03-25 09:37:32,832 INFO L132 encePairwiseOnDemand]: 154/169 looper letters, 783 selfloop transitions, 72 changer transitions 0/873 dead transitions. [2021-03-25 09:37:32,832 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 788 places, 873 transitions, 27157 flow [2021-03-25 09:37:32,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:37:32,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:37:32,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 766 transitions. [2021-03-25 09:37:32,833 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3237531699070161 [2021-03-25 09:37:32,833 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 766 transitions. [2021-03-25 09:37:32,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 766 transitions. [2021-03-25 09:37:32,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:37:32,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 766 transitions. [2021-03-25 09:37:32,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 54.714285714285715) internal successors, (766), 14 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:32,835 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 169.0) internal successors, (2535), 15 states have internal predecessors, (2535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:32,835 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 169.0) internal successors, (2535), 15 states have internal predecessors, (2535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:32,835 INFO L185 Difference]: Start difference. First operand has 775 places, 853 transitions, 24540 flow. Second operand 14 states and 766 transitions. [2021-03-25 09:37:32,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 788 places, 873 transitions, 27157 flow [2021-03-25 09:37:35,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 770 places, 873 transitions, 26944 flow, removed 16 selfloop flow, removed 18 redundant places. [2021-03-25 09:37:35,159 INFO L241 Difference]: Finished difference. Result has 774 places, 861 transitions, 25169 flow [2021-03-25 09:37:35,159 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=24339, PETRI_DIFFERENCE_MINUEND_PLACES=757, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=853, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=783, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=25169, PETRI_PLACES=774, PETRI_TRANSITIONS=861} [2021-03-25 09:37:35,159 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 713 predicate places. [2021-03-25 09:37:35,159 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:37:35,159 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 774 places, 861 transitions, 25169 flow [2021-03-25 09:37:35,159 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 774 places, 861 transitions, 25169 flow [2021-03-25 09:37:35,169 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 774 places, 861 transitions, 25169 flow [2021-03-25 09:37:35,886 INFO L129 PetriNetUnfolder]: 831/2133 cut-off events. [2021-03-25 09:37:35,886 INFO L130 PetriNetUnfolder]: For 186547/186549 co-relation queries the response was YES. [2021-03-25 09:37:35,944 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25659 conditions, 2133 events. 831/2133 cut-off events. For 186547/186549 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 17778 event pairs, 20 based on Foata normal form. 0/1799 useless extension candidates. Maximal degree in co-relation 25311. Up to 406 conditions per place. [2021-03-25 09:37:35,992 INFO L142 LiptonReduction]: Number of co-enabled transitions 4034 [2021-03-25 09:37:36,078 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:37:36,079 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:37:36,079 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 920 [2021-03-25 09:37:36,079 INFO L480 AbstractCegarLoop]: Abstraction has has 774 places, 861 transitions, 25169 flow [2021-03-25 09:37:36,079 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:36,079 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:37:36,079 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:37:36,079 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2021-03-25 09:37:36,079 INFO L428 AbstractCegarLoop]: === Iteration 266 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:37:36,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:37:36,079 INFO L82 PathProgramCache]: Analyzing trace with hash 322425011, now seen corresponding path program 12 times [2021-03-25 09:37:36,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:37:36,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384850589] [2021-03-25 09:37:36,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:37:36,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:37:36,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:36,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:37:36,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:36,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:37:36,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:36,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:37:36,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:36,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:36,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:36,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:36,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:36,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:36,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:36,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:37:36,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:36,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:36,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:36,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:36,185 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:37:36,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:37:36,200 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:37:36,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:37:36,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:37:36,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384850589] [2021-03-25 09:37:36,203 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:37:36,203 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:37:36,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125387580] [2021-03-25 09:37:36,204 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:37:36,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:37:36,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:37:36,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:37:36,204 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 169 [2021-03-25 09:37:36,204 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 774 places, 861 transitions, 25169 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:36,205 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:37:36,205 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 169 [2021-03-25 09:37:36,205 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:37:37,989 INFO L129 PetriNetUnfolder]: 887/2240 cut-off events. [2021-03-25 09:37:37,989 INFO L130 PetriNetUnfolder]: For 193704/193717 co-relation queries the response was YES. [2021-03-25 09:37:38,040 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27691 conditions, 2240 events. 887/2240 cut-off events. For 193704/193717 co-relation queries the response was YES. Maximal size of possible extension queue 212. Compared 18368 event pairs, 20 based on Foata normal form. 14/1905 useless extension candidates. Maximal degree in co-relation 27332. Up to 1173 conditions per place. [2021-03-25 09:37:38,052 INFO L132 encePairwiseOnDemand]: 150/169 looper letters, 784 selfloop transitions, 74 changer transitions 0/876 dead transitions. [2021-03-25 09:37:38,052 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 790 places, 876 transitions, 27508 flow [2021-03-25 09:37:38,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-25 09:37:38,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-25 09:37:38,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 912 transitions. [2021-03-25 09:37:38,055 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3174382178907066 [2021-03-25 09:37:38,055 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 912 transitions. [2021-03-25 09:37:38,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 912 transitions. [2021-03-25 09:37:38,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:37:38,055 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 912 transitions. [2021-03-25 09:37:38,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 53.64705882352941) internal successors, (912), 17 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:38,057 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 169.0) internal successors, (3042), 18 states have internal predecessors, (3042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:38,057 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 169.0) internal successors, (3042), 18 states have internal predecessors, (3042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:38,057 INFO L185 Difference]: Start difference. First operand has 774 places, 861 transitions, 25169 flow. Second operand 17 states and 912 transitions. [2021-03-25 09:37:38,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 790 places, 876 transitions, 27508 flow [2021-03-25 09:37:40,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 784 places, 876 transitions, 27083 flow, removed 196 selfloop flow, removed 6 redundant places. [2021-03-25 09:37:40,257 INFO L241 Difference]: Finished difference. Result has 788 places, 866 transitions, 25272 flow [2021-03-25 09:37:40,258 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=24744, PETRI_DIFFERENCE_MINUEND_PLACES=768, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=861, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=789, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=25272, PETRI_PLACES=788, PETRI_TRANSITIONS=866} [2021-03-25 09:37:40,258 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 727 predicate places. [2021-03-25 09:37:40,258 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:37:40,258 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 788 places, 866 transitions, 25272 flow [2021-03-25 09:37:40,258 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 788 places, 866 transitions, 25272 flow [2021-03-25 09:37:40,267 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 788 places, 866 transitions, 25272 flow [2021-03-25 09:37:40,907 INFO L129 PetriNetUnfolder]: 835/2150 cut-off events. [2021-03-25 09:37:40,907 INFO L130 PetriNetUnfolder]: For 189483/189497 co-relation queries the response was YES. [2021-03-25 09:37:40,961 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25636 conditions, 2150 events. 835/2150 cut-off events. For 189483/189497 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 18012 event pairs, 23 based on Foata normal form. 6/1816 useless extension candidates. Maximal degree in co-relation 25283. Up to 401 conditions per place. [2021-03-25 09:37:41,005 INFO L142 LiptonReduction]: Number of co-enabled transitions 4088 [2021-03-25 09:37:41,244 INFO L154 LiptonReduction]: Checked pairs total: 5 [2021-03-25 09:37:41,245 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:37:41,245 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 987 [2021-03-25 09:37:41,245 INFO L480 AbstractCegarLoop]: Abstraction has has 788 places, 866 transitions, 25367 flow [2021-03-25 09:37:41,245 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:41,245 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:37:41,245 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:37:41,245 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2021-03-25 09:37:41,245 INFO L428 AbstractCegarLoop]: === Iteration 267 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:37:41,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:37:41,245 INFO L82 PathProgramCache]: Analyzing trace with hash 1922315689, now seen corresponding path program 13 times [2021-03-25 09:37:41,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:37:41,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216182215] [2021-03-25 09:37:41,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:37:41,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:37:41,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:41,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:37:41,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:41,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:37:41,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:41,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:37:41,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:41,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:41,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:41,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:41,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:41,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:41,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:41,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:37:41,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:41,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:41,332 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:37:41,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:37:41,347 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:37:41,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:37:41,364 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:37:41,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:37:41,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:37:41,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216182215] [2021-03-25 09:37:41,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:37:41,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:37:41,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605928604] [2021-03-25 09:37:41,367 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:37:41,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:37:41,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:37:41,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:37:41,367 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 170 [2021-03-25 09:37:41,367 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 788 places, 866 transitions, 25367 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:41,368 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:37:41,368 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 170 [2021-03-25 09:37:41,368 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:37:43,451 INFO L129 PetriNetUnfolder]: 904/2290 cut-off events. [2021-03-25 09:37:43,451 INFO L130 PetriNetUnfolder]: For 216644/216650 co-relation queries the response was YES. [2021-03-25 09:37:43,505 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29025 conditions, 2290 events. 904/2290 cut-off events. For 216644/216650 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 18894 event pairs, 8 based on Foata normal form. 8/1942 useless extension candidates. Maximal degree in co-relation 28661. Up to 1062 conditions per place. [2021-03-25 09:37:43,518 INFO L132 encePairwiseOnDemand]: 149/170 looper letters, 696 selfloop transitions, 182 changer transitions 8/904 dead transitions. [2021-03-25 09:37:43,518 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 803 places, 904 transitions, 29628 flow [2021-03-25 09:37:43,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 09:37:43,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 09:37:43,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 882 transitions. [2021-03-25 09:37:43,520 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32426470588235295 [2021-03-25 09:37:43,520 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 882 transitions. [2021-03-25 09:37:43,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 882 transitions. [2021-03-25 09:37:43,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:37:43,521 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 882 transitions. [2021-03-25 09:37:43,521 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 55.125) internal successors, (882), 16 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:43,522 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 170.0) internal successors, (2890), 17 states have internal predecessors, (2890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:43,522 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 170.0) internal successors, (2890), 17 states have internal predecessors, (2890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:43,522 INFO L185 Difference]: Start difference. First operand has 788 places, 866 transitions, 25367 flow. Second operand 16 states and 882 transitions. [2021-03-25 09:37:43,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 803 places, 904 transitions, 29628 flow [2021-03-25 09:37:46,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 791 places, 904 transitions, 29130 flow, removed 185 selfloop flow, removed 12 redundant places. [2021-03-25 09:37:46,290 INFO L241 Difference]: Finished difference. Result has 797 places, 881 transitions, 27055 flow [2021-03-25 09:37:46,290 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=24869, PETRI_DIFFERENCE_MINUEND_PLACES=776, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=866, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=163, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=696, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=27055, PETRI_PLACES=797, PETRI_TRANSITIONS=881} [2021-03-25 09:37:46,290 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 736 predicate places. [2021-03-25 09:37:46,291 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:37:46,291 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 797 places, 881 transitions, 27055 flow [2021-03-25 09:37:46,291 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 797 places, 881 transitions, 27055 flow [2021-03-25 09:37:46,301 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 793 places, 881 transitions, 27055 flow [2021-03-25 09:37:47,201 INFO L129 PetriNetUnfolder]: 859/2215 cut-off events. [2021-03-25 09:37:47,201 INFO L130 PetriNetUnfolder]: For 208268/208273 co-relation queries the response was YES. [2021-03-25 09:37:47,276 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27212 conditions, 2215 events. 859/2215 cut-off events. For 208268/208273 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 18677 event pairs, 27 based on Foata normal form. 3/1863 useless extension candidates. Maximal degree in co-relation 26853. Up to 422 conditions per place. [2021-03-25 09:37:47,336 INFO L142 LiptonReduction]: Number of co-enabled transitions 4152 [2021-03-25 09:37:47,457 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:37:47,457 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:37:47,457 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1166 [2021-03-25 09:37:47,457 INFO L480 AbstractCegarLoop]: Abstraction has has 793 places, 881 transitions, 27055 flow [2021-03-25 09:37:47,457 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:47,457 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:37:47,457 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:37:47,458 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2021-03-25 09:37:47,458 INFO L428 AbstractCegarLoop]: === Iteration 268 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:37:47,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:37:47,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1649483162, now seen corresponding path program 8 times [2021-03-25 09:37:47,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:37:47,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514118296] [2021-03-25 09:37:47,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:37:47,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:37:47,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:47,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:37:47,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:47,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:37:47,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:47,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:37:47,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:47,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:37:47,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:47,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:47,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:47,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:47,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:47,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:37:47,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:47,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:37:47,556 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:37:47,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:37:47,559 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:37:47,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:37:47,580 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:37:47,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:37:47,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:37:47,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514118296] [2021-03-25 09:37:47,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:37:47,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:37:47,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256030577] [2021-03-25 09:37:47,585 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:37:47,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:37:47,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:37:47,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:37:47,585 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 170 [2021-03-25 09:37:47,586 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 793 places, 881 transitions, 27055 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:47,586 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:37:47,586 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 170 [2021-03-25 09:37:47,586 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:37:49,411 INFO L129 PetriNetUnfolder]: 917/2315 cut-off events. [2021-03-25 09:37:49,411 INFO L130 PetriNetUnfolder]: For 220969/220973 co-relation queries the response was YES. [2021-03-25 09:37:49,460 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29595 conditions, 2315 events. 917/2315 cut-off events. For 220969/220973 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 19120 event pairs, 15 based on Foata normal form. 5/1955 useless extension candidates. Maximal degree in co-relation 29225. Up to 1174 conditions per place. [2021-03-25 09:37:49,472 INFO L132 encePairwiseOnDemand]: 153/170 looper letters, 769 selfloop transitions, 80 changer transitions 42/909 dead transitions. [2021-03-25 09:37:49,472 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 806 places, 909 transitions, 29694 flow [2021-03-25 09:37:49,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:37:49,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:37:49,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 773 transitions. [2021-03-25 09:37:49,473 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32478991596638657 [2021-03-25 09:37:49,473 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 773 transitions. [2021-03-25 09:37:49,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 773 transitions. [2021-03-25 09:37:49,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:37:49,473 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 773 transitions. [2021-03-25 09:37:49,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 55.214285714285715) internal successors, (773), 14 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:49,474 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 170.0) internal successors, (2550), 15 states have internal predecessors, (2550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:49,475 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 170.0) internal successors, (2550), 15 states have internal predecessors, (2550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:49,475 INFO L185 Difference]: Start difference. First operand has 793 places, 881 transitions, 27055 flow. Second operand 14 states and 773 transitions. [2021-03-25 09:37:49,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 806 places, 909 transitions, 29694 flow [2021-03-25 09:37:52,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 796 places, 909 transitions, 28317 flow, removed 642 selfloop flow, removed 10 redundant places. [2021-03-25 09:37:52,299 INFO L241 Difference]: Finished difference. Result has 798 places, 850 transitions, 25422 flow [2021-03-25 09:37:52,299 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=25686, PETRI_DIFFERENCE_MINUEND_PLACES=783, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=881, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=803, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=25422, PETRI_PLACES=798, PETRI_TRANSITIONS=850} [2021-03-25 09:37:52,299 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 737 predicate places. [2021-03-25 09:37:52,300 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:37:52,300 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 798 places, 850 transitions, 25422 flow [2021-03-25 09:37:52,300 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 798 places, 850 transitions, 25422 flow [2021-03-25 09:37:52,309 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 788 places, 850 transitions, 25422 flow [2021-03-25 09:37:53,083 INFO L129 PetriNetUnfolder]: 830/2093 cut-off events. [2021-03-25 09:37:53,083 INFO L130 PetriNetUnfolder]: For 204095/204101 co-relation queries the response was YES. [2021-03-25 09:37:53,143 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25838 conditions, 2093 events. 830/2093 cut-off events. For 204095/204101 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 17162 event pairs, 25 based on Foata normal form. 4/1771 useless extension candidates. Maximal degree in co-relation 25500. Up to 388 conditions per place. [2021-03-25 09:37:53,191 INFO L142 LiptonReduction]: Number of co-enabled transitions 3730 [2021-03-25 09:37:53,282 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:37:53,282 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:37:53,282 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 982 [2021-03-25 09:37:53,282 INFO L480 AbstractCegarLoop]: Abstraction has has 788 places, 850 transitions, 25422 flow [2021-03-25 09:37:53,282 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:53,282 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:37:53,283 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:37:53,283 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2021-03-25 09:37:53,283 INFO L428 AbstractCegarLoop]: === Iteration 269 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:37:53,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:37:53,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1432553663, now seen corresponding path program 9 times [2021-03-25 09:37:53,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:37:53,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889056916] [2021-03-25 09:37:53,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:37:53,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:37:53,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:53,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:37:53,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:53,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:37:53,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:53,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:37:53,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:53,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:53,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:53,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:53,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:53,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:53,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:53,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:37:53,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:53,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:37:53,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:53,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:53,376 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:37:53,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:37:53,389 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:37:53,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:37:53,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:37:53,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889056916] [2021-03-25 09:37:53,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:37:53,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:37:53,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247206654] [2021-03-25 09:37:53,392 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:37:53,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:37:53,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:37:53,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:37:53,393 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 170 [2021-03-25 09:37:53,393 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 788 places, 850 transitions, 25422 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:53,393 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:37:53,393 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 170 [2021-03-25 09:37:53,393 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:37:55,636 INFO L129 PetriNetUnfolder]: 879/2176 cut-off events. [2021-03-25 09:37:55,636 INFO L130 PetriNetUnfolder]: For 205977/205992 co-relation queries the response was YES. [2021-03-25 09:37:55,684 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27888 conditions, 2176 events. 879/2176 cut-off events. For 205977/205992 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 17469 event pairs, 17 based on Foata normal form. 17/1858 useless extension candidates. Maximal degree in co-relation 27548. Up to 1142 conditions per place. [2021-03-25 09:37:55,697 INFO L132 encePairwiseOnDemand]: 154/170 looper letters, 764 selfloop transitions, 75 changer transitions 8/865 dead transitions. [2021-03-25 09:37:55,697 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 802 places, 865 transitions, 27627 flow [2021-03-25 09:37:55,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 09:37:55,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 09:37:55,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 821 transitions. [2021-03-25 09:37:55,698 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3219607843137255 [2021-03-25 09:37:55,698 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 821 transitions. [2021-03-25 09:37:55,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 821 transitions. [2021-03-25 09:37:55,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:37:55,698 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 821 transitions. [2021-03-25 09:37:55,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 54.733333333333334) internal successors, (821), 15 states have internal predecessors, (821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:55,700 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 170.0) internal successors, (2720), 16 states have internal predecessors, (2720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:55,700 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 170.0) internal successors, (2720), 16 states have internal predecessors, (2720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:55,700 INFO L185 Difference]: Start difference. First operand has 788 places, 850 transitions, 25422 flow. Second operand 15 states and 821 transitions. [2021-03-25 09:37:55,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 802 places, 865 transitions, 27627 flow [2021-03-25 09:37:58,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 780 places, 865 transitions, 27078 flow, removed 144 selfloop flow, removed 22 redundant places. [2021-03-25 09:37:58,318 INFO L241 Difference]: Finished difference. Result has 782 places, 846 transitions, 25213 flow [2021-03-25 09:37:58,319 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=24883, PETRI_DIFFERENCE_MINUEND_PLACES=766, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=850, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=776, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=25213, PETRI_PLACES=782, PETRI_TRANSITIONS=846} [2021-03-25 09:37:58,319 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 721 predicate places. [2021-03-25 09:37:58,319 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:37:58,319 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 782 places, 846 transitions, 25213 flow [2021-03-25 09:37:58,319 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 782 places, 846 transitions, 25213 flow [2021-03-25 09:37:58,328 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 779 places, 846 transitions, 25213 flow [2021-03-25 09:37:59,019 INFO L129 PetriNetUnfolder]: 827/2084 cut-off events. [2021-03-25 09:37:59,019 INFO L130 PetriNetUnfolder]: For 191961/191963 co-relation queries the response was YES. [2021-03-25 09:37:59,076 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25602 conditions, 2084 events. 827/2084 cut-off events. For 191961/191963 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 17056 event pairs, 26 based on Foata normal form. 0/1761 useless extension candidates. Maximal degree in co-relation 25251. Up to 388 conditions per place. [2021-03-25 09:37:59,124 INFO L142 LiptonReduction]: Number of co-enabled transitions 3692 [2021-03-25 09:37:59,209 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:37:59,210 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:37:59,210 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 891 [2021-03-25 09:37:59,210 INFO L480 AbstractCegarLoop]: Abstraction has has 779 places, 846 transitions, 25213 flow [2021-03-25 09:37:59,210 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:59,210 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:37:59,210 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:37:59,210 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2021-03-25 09:37:59,210 INFO L428 AbstractCegarLoop]: === Iteration 270 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:37:59,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:37:59,210 INFO L82 PathProgramCache]: Analyzing trace with hash 980838743, now seen corresponding path program 10 times [2021-03-25 09:37:59,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:37:59,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884330310] [2021-03-25 09:37:59,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:37:59,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:37:59,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:59,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:37:59,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:59,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:37:59,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:59,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:37:59,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:59,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:59,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:59,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:59,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:59,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:37:59,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:59,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:37:59,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:37:59,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:37:59,320 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:37:59,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:37:59,339 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:37:59,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:37:59,355 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:37:59,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:37:59,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:37:59,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884330310] [2021-03-25 09:37:59,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:37:59,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:37:59,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604833215] [2021-03-25 09:37:59,358 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:37:59,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:37:59,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:37:59,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:37:59,359 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 170 [2021-03-25 09:37:59,359 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 779 places, 846 transitions, 25213 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:37:59,359 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:37:59,359 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 170 [2021-03-25 09:37:59,359 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:38:00,989 INFO L129 PetriNetUnfolder]: 872/2149 cut-off events. [2021-03-25 09:38:00,989 INFO L130 PetriNetUnfolder]: For 197456/197462 co-relation queries the response was YES. [2021-03-25 09:38:01,044 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27550 conditions, 2149 events. 872/2149 cut-off events. For 197456/197462 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 17102 event pairs, 20 based on Foata normal form. 7/1827 useless extension candidates. Maximal degree in co-relation 27188. Up to 1153 conditions per place. [2021-03-25 09:38:01,056 INFO L132 encePairwiseOnDemand]: 156/170 looper letters, 780 selfloop transitions, 53 changer transitions 9/860 dead transitions. [2021-03-25 09:38:01,056 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 792 places, 860 transitions, 27267 flow [2021-03-25 09:38:01,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:38:01,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:38:01,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 757 transitions. [2021-03-25 09:38:01,057 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3180672268907563 [2021-03-25 09:38:01,058 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 757 transitions. [2021-03-25 09:38:01,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 757 transitions. [2021-03-25 09:38:01,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:38:01,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 757 transitions. [2021-03-25 09:38:01,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 54.07142857142857) internal successors, (757), 14 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:01,059 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 170.0) internal successors, (2550), 15 states have internal predecessors, (2550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:01,059 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 170.0) internal successors, (2550), 15 states have internal predecessors, (2550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:01,059 INFO L185 Difference]: Start difference. First operand has 779 places, 846 transitions, 25213 flow. Second operand 14 states and 757 transitions. [2021-03-25 09:38:01,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 792 places, 860 transitions, 27267 flow [2021-03-25 09:38:03,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 776 places, 860 transitions, 26788 flow, removed 158 selfloop flow, removed 16 redundant places. [2021-03-25 09:38:03,389 INFO L241 Difference]: Finished difference. Result has 780 places, 842 transitions, 24809 flow [2021-03-25 09:38:03,390 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=24736, PETRI_DIFFERENCE_MINUEND_PLACES=763, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=846, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=793, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=24809, PETRI_PLACES=780, PETRI_TRANSITIONS=842} [2021-03-25 09:38:03,390 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 719 predicate places. [2021-03-25 09:38:03,390 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:38:03,390 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 780 places, 842 transitions, 24809 flow [2021-03-25 09:38:03,390 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 780 places, 842 transitions, 24809 flow [2021-03-25 09:38:03,399 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 775 places, 842 transitions, 24809 flow [2021-03-25 09:38:04,052 INFO L129 PetriNetUnfolder]: 818/2053 cut-off events. [2021-03-25 09:38:04,052 INFO L130 PetriNetUnfolder]: For 192135/192137 co-relation queries the response was YES. [2021-03-25 09:38:04,105 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25402 conditions, 2053 events. 818/2053 cut-off events. For 192135/192137 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 16639 event pairs, 22 based on Foata normal form. 0/1738 useless extension candidates. Maximal degree in co-relation 25050. Up to 384 conditions per place. [2021-03-25 09:38:04,150 INFO L142 LiptonReduction]: Number of co-enabled transitions 3684 [2021-03-25 09:38:04,364 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-25 09:38:04,364 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:38:04,365 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 975 [2021-03-25 09:38:04,365 INFO L480 AbstractCegarLoop]: Abstraction has has 775 places, 842 transitions, 24824 flow [2021-03-25 09:38:04,365 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:04,365 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:38:04,365 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:38:04,365 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269 [2021-03-25 09:38:04,365 INFO L428 AbstractCegarLoop]: === Iteration 271 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:38:04,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:38:04,365 INFO L82 PathProgramCache]: Analyzing trace with hash -1087319133, now seen corresponding path program 3 times [2021-03-25 09:38:04,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:38:04,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71936108] [2021-03-25 09:38:04,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:38:04,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:38:04,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:04,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:38:04,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:04,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:38:04,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:04,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:38:04,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:04,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:38:04,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:04,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:04,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:04,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:04,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:04,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:04,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:04,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:04,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:04,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:04,460 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:38:04,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:38:04,476 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:38:04,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:38:04,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:38:04,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71936108] [2021-03-25 09:38:04,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:38:04,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:38:04,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209676133] [2021-03-25 09:38:04,479 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:38:04,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:38:04,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:38:04,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:38:04,480 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 171 [2021-03-25 09:38:04,480 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 775 places, 842 transitions, 24824 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:04,480 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:38:04,480 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 171 [2021-03-25 09:38:04,480 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:38:06,479 INFO L129 PetriNetUnfolder]: 867/2133 cut-off events. [2021-03-25 09:38:06,479 INFO L130 PetriNetUnfolder]: For 194572/194574 co-relation queries the response was YES. [2021-03-25 09:38:06,539 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27390 conditions, 2133 events. 867/2133 cut-off events. For 194572/194574 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 17022 event pairs, 23 based on Foata normal form. 3/1810 useless extension candidates. Maximal degree in co-relation 27027. Up to 1145 conditions per place. [2021-03-25 09:38:06,550 INFO L132 encePairwiseOnDemand]: 154/171 looper letters, 773 selfloop transitions, 67 changer transitions 0/858 dead transitions. [2021-03-25 09:38:06,550 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 788 places, 858 transitions, 26934 flow [2021-03-25 09:38:06,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:38:06,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:38:06,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 764 transitions. [2021-03-25 09:38:06,551 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3191311612364244 [2021-03-25 09:38:06,552 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 764 transitions. [2021-03-25 09:38:06,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 764 transitions. [2021-03-25 09:38:06,552 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:38:06,552 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 764 transitions. [2021-03-25 09:38:06,552 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 54.57142857142857) internal successors, (764), 14 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:06,553 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 171.0) internal successors, (2565), 15 states have internal predecessors, (2565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:06,553 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 171.0) internal successors, (2565), 15 states have internal predecessors, (2565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:06,553 INFO L185 Difference]: Start difference. First operand has 775 places, 842 transitions, 24824 flow. Second operand 14 states and 764 transitions. [2021-03-25 09:38:06,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 788 places, 858 transitions, 26934 flow [2021-03-25 09:38:08,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 771 places, 858 transitions, 26732 flow, removed 12 selfloop flow, removed 17 redundant places. [2021-03-25 09:38:09,003 INFO L241 Difference]: Finished difference. Result has 774 places, 846 transitions, 25115 flow [2021-03-25 09:38:09,004 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=24634, PETRI_DIFFERENCE_MINUEND_PLACES=758, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=842, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=776, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=25115, PETRI_PLACES=774, PETRI_TRANSITIONS=846} [2021-03-25 09:38:09,004 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 713 predicate places. [2021-03-25 09:38:09,004 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:38:09,004 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 774 places, 846 transitions, 25115 flow [2021-03-25 09:38:09,004 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 774 places, 846 transitions, 25115 flow [2021-03-25 09:38:09,014 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 774 places, 846 transitions, 25115 flow [2021-03-25 09:38:09,774 INFO L129 PetriNetUnfolder]: 824/2076 cut-off events. [2021-03-25 09:38:09,774 INFO L130 PetriNetUnfolder]: For 193903/193906 co-relation queries the response was YES. [2021-03-25 09:38:09,839 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25564 conditions, 2076 events. 824/2076 cut-off events. For 193903/193906 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 17008 event pairs, 21 based on Foata normal form. 1/1756 useless extension candidates. Maximal degree in co-relation 25214. Up to 387 conditions per place. [2021-03-25 09:38:09,890 INFO L142 LiptonReduction]: Number of co-enabled transitions 3732 [2021-03-25 09:38:09,979 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:38:09,979 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:38:09,979 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 975 [2021-03-25 09:38:09,979 INFO L480 AbstractCegarLoop]: Abstraction has has 774 places, 846 transitions, 25115 flow [2021-03-25 09:38:09,980 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:09,980 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:38:09,980 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:38:09,980 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270 [2021-03-25 09:38:09,980 INFO L428 AbstractCegarLoop]: === Iteration 272 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:38:09,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:38:09,980 INFO L82 PathProgramCache]: Analyzing trace with hash -2119239578, now seen corresponding path program 1 times [2021-03-25 09:38:09,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:38:09,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581264245] [2021-03-25 09:38:09,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:38:09,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:38:09,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:09,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:38:09,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:09,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:38:09,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:09,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:38:10,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:10,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:38:10,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:10,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:10,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:10,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:10,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:10,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:10,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:10,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:10,055 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:38:10,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:38:10,068 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:38:10,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:38:10,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:38:10,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581264245] [2021-03-25 09:38:10,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:38:10,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:38:10,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247111715] [2021-03-25 09:38:10,071 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:38:10,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:38:10,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:38:10,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:38:10,072 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 171 [2021-03-25 09:38:10,072 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 774 places, 846 transitions, 25115 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:10,072 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:38:10,072 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 171 [2021-03-25 09:38:10,072 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:38:11,685 INFO L129 PetriNetUnfolder]: 870/2146 cut-off events. [2021-03-25 09:38:11,686 INFO L130 PetriNetUnfolder]: For 194775/194779 co-relation queries the response was YES. [2021-03-25 09:38:11,741 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27438 conditions, 2146 events. 870/2146 cut-off events. For 194775/194779 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 17109 event pairs, 22 based on Foata normal form. 5/1821 useless extension candidates. Maximal degree in co-relation 27077. Up to 1133 conditions per place. [2021-03-25 09:38:11,753 INFO L132 encePairwiseOnDemand]: 154/171 looper letters, 765 selfloop transitions, 65 changer transitions 13/861 dead transitions. [2021-03-25 09:38:11,753 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 787 places, 861 transitions, 27065 flow [2021-03-25 09:38:11,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:38:11,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:38:11,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 768 transitions. [2021-03-25 09:38:11,755 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3208020050125313 [2021-03-25 09:38:11,755 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 768 transitions. [2021-03-25 09:38:11,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 768 transitions. [2021-03-25 09:38:11,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:38:11,755 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 768 transitions. [2021-03-25 09:38:11,755 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 54.857142857142854) internal successors, (768), 14 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:11,756 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 171.0) internal successors, (2565), 15 states have internal predecessors, (2565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:11,756 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 171.0) internal successors, (2565), 15 states have internal predecessors, (2565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:11,756 INFO L185 Difference]: Start difference. First operand has 774 places, 846 transitions, 25115 flow. Second operand 14 states and 768 transitions. [2021-03-25 09:38:11,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 787 places, 861 transitions, 27065 flow [2021-03-25 09:38:14,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 777 places, 861 transitions, 26795 flow, removed 94 selfloop flow, removed 10 redundant places. [2021-03-25 09:38:14,124 INFO L241 Difference]: Finished difference. Result has 779 places, 835 transitions, 24738 flow [2021-03-25 09:38:14,125 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=24847, PETRI_DIFFERENCE_MINUEND_PLACES=764, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=846, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=781, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=24738, PETRI_PLACES=779, PETRI_TRANSITIONS=835} [2021-03-25 09:38:14,125 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 718 predicate places. [2021-03-25 09:38:14,125 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:38:14,125 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 779 places, 835 transitions, 24738 flow [2021-03-25 09:38:14,125 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 779 places, 835 transitions, 24738 flow [2021-03-25 09:38:14,134 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 775 places, 835 transitions, 24738 flow [2021-03-25 09:38:14,774 INFO L129 PetriNetUnfolder]: 819/2056 cut-off events. [2021-03-25 09:38:14,774 INFO L130 PetriNetUnfolder]: For 191688/191691 co-relation queries the response was YES. [2021-03-25 09:38:14,824 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25391 conditions, 2056 events. 819/2056 cut-off events. For 191688/191691 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 16742 event pairs, 21 based on Foata normal form. 1/1739 useless extension candidates. Maximal degree in co-relation 25058. Up to 384 conditions per place. [2021-03-25 09:38:14,867 INFO L142 LiptonReduction]: Number of co-enabled transitions 3602 [2021-03-25 09:38:14,943 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:38:14,943 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:38:14,944 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 819 [2021-03-25 09:38:14,944 INFO L480 AbstractCegarLoop]: Abstraction has has 775 places, 835 transitions, 24738 flow [2021-03-25 09:38:14,944 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:14,944 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:38:14,944 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:38:14,944 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271 [2021-03-25 09:38:14,944 INFO L428 AbstractCegarLoop]: === Iteration 273 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:38:14,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:38:14,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1568059991, now seen corresponding path program 4 times [2021-03-25 09:38:14,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:38:14,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140394780] [2021-03-25 09:38:14,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:38:14,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:38:14,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:14,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:38:14,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:14,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:38:14,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:14,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:38:14,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:14,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:38:14,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:14,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:14,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:14,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:15,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:15,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:38:15,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:15,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:38:15,028 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:38:15,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:38:15,043 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:38:15,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:38:15,060 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:38:15,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:38:15,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:38:15,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140394780] [2021-03-25 09:38:15,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:38:15,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:38:15,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146494609] [2021-03-25 09:38:15,062 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:38:15,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:38:15,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:38:15,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:38:15,063 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 171 [2021-03-25 09:38:15,063 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 775 places, 835 transitions, 24738 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:15,063 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:38:15,063 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 171 [2021-03-25 09:38:15,063 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:38:16,754 INFO L129 PetriNetUnfolder]: 867/2129 cut-off events. [2021-03-25 09:38:16,754 INFO L130 PetriNetUnfolder]: For 199608/199610 co-relation queries the response was YES. [2021-03-25 09:38:16,809 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27726 conditions, 2129 events. 867/2129 cut-off events. For 199608/199610 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 16923 event pairs, 24 based on Foata normal form. 3/1807 useless extension candidates. Maximal degree in co-relation 27391. Up to 1147 conditions per place. [2021-03-25 09:38:16,821 INFO L132 encePairwiseOnDemand]: 156/171 looper letters, 779 selfloop transitions, 56 changer transitions 2/855 dead transitions. [2021-03-25 09:38:16,821 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 788 places, 855 transitions, 27282 flow [2021-03-25 09:38:16,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:38:16,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:38:16,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 763 transitions. [2021-03-25 09:38:16,822 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.31871345029239767 [2021-03-25 09:38:16,822 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 763 transitions. [2021-03-25 09:38:16,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 763 transitions. [2021-03-25 09:38:16,822 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:38:16,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 763 transitions. [2021-03-25 09:38:16,823 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 54.5) internal successors, (763), 14 states have internal predecessors, (763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:16,824 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 171.0) internal successors, (2565), 15 states have internal predecessors, (2565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:16,824 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 171.0) internal successors, (2565), 15 states have internal predecessors, (2565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:16,824 INFO L185 Difference]: Start difference. First operand has 775 places, 835 transitions, 24738 flow. Second operand 14 states and 763 transitions. [2021-03-25 09:38:16,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 788 places, 855 transitions, 27282 flow [2021-03-25 09:38:19,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 765 places, 855 transitions, 26936 flow, removed 28 selfloop flow, removed 23 redundant places. [2021-03-25 09:38:19,015 INFO L241 Difference]: Finished difference. Result has 769 places, 841 transitions, 25035 flow [2021-03-25 09:38:19,016 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=24412, PETRI_DIFFERENCE_MINUEND_PLACES=752, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=835, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=781, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=25035, PETRI_PLACES=769, PETRI_TRANSITIONS=841} [2021-03-25 09:38:19,016 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 708 predicate places. [2021-03-25 09:38:19,016 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:38:19,016 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 769 places, 841 transitions, 25035 flow [2021-03-25 09:38:19,016 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 769 places, 841 transitions, 25035 flow [2021-03-25 09:38:19,024 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 768 places, 841 transitions, 25035 flow [2021-03-25 09:38:19,631 INFO L129 PetriNetUnfolder]: 824/2068 cut-off events. [2021-03-25 09:38:19,632 INFO L130 PetriNetUnfolder]: For 202298/202300 co-relation queries the response was YES. [2021-03-25 09:38:19,669 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25688 conditions, 2068 events. 824/2068 cut-off events. For 202298/202300 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 16866 event pairs, 19 based on Foata normal form. 0/1749 useless extension candidates. Maximal degree in co-relation 25342. Up to 392 conditions per place. [2021-03-25 09:38:19,704 INFO L142 LiptonReduction]: Number of co-enabled transitions 3650 [2021-03-25 09:38:19,779 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:38:19,779 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:38:19,779 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 763 [2021-03-25 09:38:19,779 INFO L480 AbstractCegarLoop]: Abstraction has has 768 places, 841 transitions, 25035 flow [2021-03-25 09:38:19,780 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:19,780 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:38:19,780 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:38:19,780 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272 [2021-03-25 09:38:19,780 INFO L428 AbstractCegarLoop]: === Iteration 274 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:38:19,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:38:19,780 INFO L82 PathProgramCache]: Analyzing trace with hash -326311913, now seen corresponding path program 1 times [2021-03-25 09:38:19,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:38:19,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873399155] [2021-03-25 09:38:19,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:38:19,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:38:19,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:19,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:38:19,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:19,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:38:19,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:19,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:38:19,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:19,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:19,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:19,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:38:19,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:19,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:38:19,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:19,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:19,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:19,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:19,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:19,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:19,846 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:38:19,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:38:19,859 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:38:19,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:38:19,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:38:19,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873399155] [2021-03-25 09:38:19,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:38:19,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:38:19,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3839989] [2021-03-25 09:38:19,862 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:38:19,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:38:19,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:38:19,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:38:19,862 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 171 [2021-03-25 09:38:19,862 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 768 places, 841 transitions, 25035 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:19,862 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:38:19,863 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 171 [2021-03-25 09:38:19,863 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:38:21,132 INFO L129 PetriNetUnfolder]: 872/2145 cut-off events. [2021-03-25 09:38:21,133 INFO L130 PetriNetUnfolder]: For 212096/212111 co-relation queries the response was YES. [2021-03-25 09:38:21,186 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28163 conditions, 2145 events. 872/2145 cut-off events. For 212096/212111 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 17120 event pairs, 21 based on Foata normal form. 16/1835 useless extension candidates. Maximal degree in co-relation 27806. Up to 1157 conditions per place. [2021-03-25 09:38:21,197 INFO L132 encePairwiseOnDemand]: 153/171 looper letters, 776 selfloop transitions, 71 changer transitions 0/865 dead transitions. [2021-03-25 09:38:21,197 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 779 places, 865 transitions, 28276 flow [2021-03-25 09:38:21,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:38:21,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:38:21,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 660 transitions. [2021-03-25 09:38:21,198 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3216374269005848 [2021-03-25 09:38:21,198 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 660 transitions. [2021-03-25 09:38:21,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 660 transitions. [2021-03-25 09:38:21,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:38:21,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 660 transitions. [2021-03-25 09:38:21,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 55.0) internal successors, (660), 12 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:21,200 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 171.0) internal successors, (2223), 13 states have internal predecessors, (2223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:21,200 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 171.0) internal successors, (2223), 13 states have internal predecessors, (2223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:21,200 INFO L185 Difference]: Start difference. First operand has 768 places, 841 transitions, 25035 flow. Second operand 12 states and 660 transitions. [2021-03-25 09:38:21,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 779 places, 865 transitions, 28276 flow [2021-03-25 09:38:23,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 770 places, 865 transitions, 27998 flow, removed 115 selfloop flow, removed 9 redundant places. [2021-03-25 09:38:23,338 INFO L241 Difference]: Finished difference. Result has 775 places, 857 transitions, 26276 flow [2021-03-25 09:38:23,338 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=24757, PETRI_DIFFERENCE_MINUEND_PLACES=759, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=841, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=777, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=26276, PETRI_PLACES=775, PETRI_TRANSITIONS=857} [2021-03-25 09:38:23,338 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 714 predicate places. [2021-03-25 09:38:23,338 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:38:23,338 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 775 places, 857 transitions, 26276 flow [2021-03-25 09:38:23,339 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 775 places, 857 transitions, 26276 flow [2021-03-25 09:38:23,347 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 775 places, 857 transitions, 26276 flow [2021-03-25 09:38:23,946 INFO L129 PetriNetUnfolder]: 832/2088 cut-off events. [2021-03-25 09:38:23,946 INFO L130 PetriNetUnfolder]: For 214237/214242 co-relation queries the response was YES. [2021-03-25 09:38:23,998 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26395 conditions, 2088 events. 832/2088 cut-off events. For 214237/214242 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 17068 event pairs, 24 based on Foata normal form. 3/1767 useless extension candidates. Maximal degree in co-relation 26045. Up to 400 conditions per place. [2021-03-25 09:38:24,040 INFO L142 LiptonReduction]: Number of co-enabled transitions 3768 [2021-03-25 09:38:24,273 INFO L154 LiptonReduction]: Checked pairs total: 5 [2021-03-25 09:38:24,274 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:38:24,274 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 936 [2021-03-25 09:38:24,274 INFO L480 AbstractCegarLoop]: Abstraction has has 775 places, 857 transitions, 26373 flow [2021-03-25 09:38:24,274 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:24,274 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:38:24,274 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:38:24,274 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2021-03-25 09:38:24,274 INFO L428 AbstractCegarLoop]: === Iteration 275 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:38:24,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:38:24,274 INFO L82 PathProgramCache]: Analyzing trace with hash -249887881, now seen corresponding path program 11 times [2021-03-25 09:38:24,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:38:24,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420828726] [2021-03-25 09:38:24,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:38:24,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:38:24,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:24,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:38:24,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:24,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:38:24,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:24,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:38:24,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:24,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:24,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:24,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:24,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:24,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:38:24,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:24,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:38:24,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:24,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:24,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:24,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:24,355 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:38:24,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:38:24,359 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:38:24,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:38:24,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:38:24,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420828726] [2021-03-25 09:38:24,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:38:24,361 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:38:24,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402923005] [2021-03-25 09:38:24,362 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:38:24,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:38:24,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:38:24,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:38:24,362 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 172 [2021-03-25 09:38:24,362 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 775 places, 857 transitions, 26373 flow. Second operand has 9 states, 9 states have (on average 49.44444444444444) internal successors, (445), 9 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:24,362 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:38:24,362 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 172 [2021-03-25 09:38:24,362 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:38:25,615 INFO L129 PetriNetUnfolder]: 875/2160 cut-off events. [2021-03-25 09:38:25,615 INFO L130 PetriNetUnfolder]: For 223602/223617 co-relation queries the response was YES. [2021-03-25 09:38:25,669 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28543 conditions, 2160 events. 875/2160 cut-off events. For 223602/223617 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 17278 event pairs, 20 based on Foata normal form. 12/1843 useless extension candidates. Maximal degree in co-relation 28182. Up to 1196 conditions per place. [2021-03-25 09:38:25,681 INFO L132 encePairwiseOnDemand]: 159/172 looper letters, 822 selfloop transitions, 28 changer transitions 0/868 dead transitions. [2021-03-25 09:38:25,681 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 784 places, 868 transitions, 28557 flow [2021-03-25 09:38:25,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:38:25,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:38:25,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 547 transitions. [2021-03-25 09:38:25,683 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.31802325581395346 [2021-03-25 09:38:25,683 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 547 transitions. [2021-03-25 09:38:25,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 547 transitions. [2021-03-25 09:38:25,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:38:25,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 547 transitions. [2021-03-25 09:38:25,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 54.7) internal successors, (547), 10 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:25,684 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 172.0) internal successors, (1892), 11 states have internal predecessors, (1892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:25,684 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 172.0) internal successors, (1892), 11 states have internal predecessors, (1892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:25,684 INFO L185 Difference]: Start difference. First operand has 775 places, 857 transitions, 26373 flow. Second operand 10 states and 547 transitions. [2021-03-25 09:38:25,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 784 places, 868 transitions, 28557 flow [2021-03-25 09:38:28,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 782 places, 868 transitions, 27649 flow, removed 448 selfloop flow, removed 2 redundant places. [2021-03-25 09:38:28,153 INFO L241 Difference]: Finished difference. Result has 786 places, 863 transitions, 26005 flow [2021-03-25 09:38:28,154 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=25465, PETRI_DIFFERENCE_MINUEND_PLACES=773, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=857, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=831, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=26005, PETRI_PLACES=786, PETRI_TRANSITIONS=863} [2021-03-25 09:38:28,154 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 725 predicate places. [2021-03-25 09:38:28,154 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:38:28,154 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 786 places, 863 transitions, 26005 flow [2021-03-25 09:38:28,154 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 786 places, 863 transitions, 26005 flow [2021-03-25 09:38:28,162 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 786 places, 863 transitions, 26005 flow [2021-03-25 09:38:28,742 INFO L129 PetriNetUnfolder]: 832/2094 cut-off events. [2021-03-25 09:38:28,742 INFO L130 PetriNetUnfolder]: For 211622/211627 co-relation queries the response was YES. [2021-03-25 09:38:28,793 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26229 conditions, 2094 events. 832/2094 cut-off events. For 211622/211627 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 17194 event pairs, 19 based on Foata normal form. 3/1774 useless extension candidates. Maximal degree in co-relation 25874. Up to 400 conditions per place. [2021-03-25 09:38:28,836 INFO L142 LiptonReduction]: Number of co-enabled transitions 3816 [2021-03-25 09:38:29,063 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:38:29,063 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:38:29,063 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 909 [2021-03-25 09:38:29,063 INFO L480 AbstractCegarLoop]: Abstraction has has 786 places, 863 transitions, 26114 flow [2021-03-25 09:38:29,063 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 49.44444444444444) internal successors, (445), 9 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:29,063 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:38:29,063 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:38:29,063 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2021-03-25 09:38:29,063 INFO L428 AbstractCegarLoop]: === Iteration 276 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:38:29,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:38:29,064 INFO L82 PathProgramCache]: Analyzing trace with hash 2005860489, now seen corresponding path program 5 times [2021-03-25 09:38:29,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:38:29,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111659584] [2021-03-25 09:38:29,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:38:29,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:38:29,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:29,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:38:29,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:29,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:38:29,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:29,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:38:29,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:29,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:38:29,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:29,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:29,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:29,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:29,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:29,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:38:29,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:29,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:38:29,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:29,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:29,158 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:38:29,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:38:29,174 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:38:29,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:38:29,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:38:29,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111659584] [2021-03-25 09:38:29,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:38:29,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:38:29,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973559662] [2021-03-25 09:38:29,177 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:38:29,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:38:29,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:38:29,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:38:29,178 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 173 [2021-03-25 09:38:29,178 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 786 places, 863 transitions, 26114 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:29,178 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:38:29,178 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 173 [2021-03-25 09:38:29,178 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:38:30,918 INFO L129 PetriNetUnfolder]: 891/2194 cut-off events. [2021-03-25 09:38:30,918 INFO L130 PetriNetUnfolder]: For 220136/220138 co-relation queries the response was YES. [2021-03-25 09:38:30,972 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28801 conditions, 2194 events. 891/2194 cut-off events. For 220136/220138 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 17633 event pairs, 21 based on Foata normal form. 3/1862 useless extension candidates. Maximal degree in co-relation 28435. Up to 1153 conditions per place. [2021-03-25 09:38:30,983 INFO L132 encePairwiseOnDemand]: 156/173 looper letters, 783 selfloop transitions, 100 changer transitions 0/901 dead transitions. [2021-03-25 09:38:30,983 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 804 places, 901 transitions, 29410 flow [2021-03-25 09:38:30,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-25 09:38:30,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-25 09:38:30,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1030 transitions. [2021-03-25 09:38:30,985 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3133556434438698 [2021-03-25 09:38:30,985 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1030 transitions. [2021-03-25 09:38:30,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1030 transitions. [2021-03-25 09:38:30,985 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:38:30,985 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1030 transitions. [2021-03-25 09:38:30,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 54.21052631578947) internal successors, (1030), 19 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:30,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 173.0) internal successors, (3460), 20 states have internal predecessors, (3460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:30,987 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 173.0) internal successors, (3460), 20 states have internal predecessors, (3460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:30,987 INFO L185 Difference]: Start difference. First operand has 786 places, 863 transitions, 26114 flow. Second operand 19 states and 1030 transitions. [2021-03-25 09:38:30,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 804 places, 901 transitions, 29410 flow [2021-03-25 09:38:33,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 799 places, 901 transitions, 28899 flow, removed 237 selfloop flow, removed 5 redundant places. [2021-03-25 09:38:33,768 INFO L241 Difference]: Finished difference. Result has 802 places, 886 transitions, 27300 flow [2021-03-25 09:38:33,768 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=25603, PETRI_DIFFERENCE_MINUEND_PLACES=781, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=863, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=779, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=27300, PETRI_PLACES=802, PETRI_TRANSITIONS=886} [2021-03-25 09:38:33,768 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 741 predicate places. [2021-03-25 09:38:33,768 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:38:33,768 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 802 places, 886 transitions, 27300 flow [2021-03-25 09:38:33,769 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 802 places, 886 transitions, 27300 flow [2021-03-25 09:38:33,779 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 802 places, 886 transitions, 27300 flow [2021-03-25 09:38:34,634 INFO L129 PetriNetUnfolder]: 853/2145 cut-off events. [2021-03-25 09:38:34,634 INFO L130 PetriNetUnfolder]: For 218855/218857 co-relation queries the response was YES. [2021-03-25 09:38:34,695 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26936 conditions, 2145 events. 853/2145 cut-off events. For 218855/218857 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 17654 event pairs, 17 based on Foata normal form. 0/1811 useless extension candidates. Maximal degree in co-relation 26578. Up to 414 conditions per place. [2021-03-25 09:38:34,746 INFO L142 LiptonReduction]: Number of co-enabled transitions 3876 [2021-03-25 09:38:34,848 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:38:34,849 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:38:34,849 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1081 [2021-03-25 09:38:34,849 INFO L480 AbstractCegarLoop]: Abstraction has has 802 places, 886 transitions, 27300 flow [2021-03-25 09:38:34,849 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:34,849 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:38:34,849 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:38:34,849 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2021-03-25 09:38:34,849 INFO L428 AbstractCegarLoop]: === Iteration 277 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:38:34,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:38:34,849 INFO L82 PathProgramCache]: Analyzing trace with hash -1825257880, now seen corresponding path program 1 times [2021-03-25 09:38:34,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:38:34,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858890817] [2021-03-25 09:38:34,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:38:34,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:38:34,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:34,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:38:34,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:34,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:38:34,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:34,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:38:34,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:34,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:34,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:34,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:34,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:34,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:38:34,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:34,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:34,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:34,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:34,901 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:38:34,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:38:34,911 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:38:34,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:38:34,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:38:34,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858890817] [2021-03-25 09:38:34,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:38:34,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:38:34,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352754342] [2021-03-25 09:38:34,914 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:38:34,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:38:34,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:38:34,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:38:34,914 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 173 [2021-03-25 09:38:34,915 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 802 places, 886 transitions, 27300 flow. Second operand has 9 states, 9 states have (on average 49.333333333333336) internal successors, (444), 9 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:34,915 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:38:34,915 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 173 [2021-03-25 09:38:34,915 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:38:36,674 INFO L129 PetriNetUnfolder]: 892/2203 cut-off events. [2021-03-25 09:38:36,674 INFO L130 PetriNetUnfolder]: For 219920/219924 co-relation queries the response was YES. [2021-03-25 09:38:36,734 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28862 conditions, 2203 events. 892/2203 cut-off events. For 219920/219924 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 17802 event pairs, 21 based on Foata normal form. 5/1871 useless extension candidates. Maximal degree in co-relation 28493. Up to 1174 conditions per place. [2021-03-25 09:38:36,747 INFO L132 encePairwiseOnDemand]: 157/173 looper letters, 805 selfloop transitions, 67 changer transitions 6/896 dead transitions. [2021-03-25 09:38:36,748 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 810 places, 896 transitions, 29462 flow [2021-03-25 09:38:36,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 09:38:36,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 09:38:36,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 513 transitions. [2021-03-25 09:38:36,749 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32947976878612717 [2021-03-25 09:38:36,749 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 513 transitions. [2021-03-25 09:38:36,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 513 transitions. [2021-03-25 09:38:36,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:38:36,749 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 513 transitions. [2021-03-25 09:38:36,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 57.0) internal successors, (513), 9 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:36,750 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 173.0) internal successors, (1730), 10 states have internal predecessors, (1730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:36,750 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 173.0) internal successors, (1730), 10 states have internal predecessors, (1730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:36,750 INFO L185 Difference]: Start difference. First operand has 802 places, 886 transitions, 27300 flow. Second operand 9 states and 513 transitions. [2021-03-25 09:38:36,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 810 places, 896 transitions, 29462 flow [2021-03-25 09:38:39,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 798 places, 896 transitions, 28221 flow, removed 578 selfloop flow, removed 12 redundant places. [2021-03-25 09:38:39,286 INFO L241 Difference]: Finished difference. Result has 800 places, 881 transitions, 26124 flow [2021-03-25 09:38:39,286 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=26059, PETRI_DIFFERENCE_MINUEND_PLACES=790, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=886, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=819, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=26124, PETRI_PLACES=800, PETRI_TRANSITIONS=881} [2021-03-25 09:38:39,286 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 739 predicate places. [2021-03-25 09:38:39,286 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:38:39,286 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 800 places, 881 transitions, 26124 flow [2021-03-25 09:38:39,286 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 800 places, 881 transitions, 26124 flow [2021-03-25 09:38:39,295 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 799 places, 881 transitions, 26124 flow [2021-03-25 09:38:39,949 INFO L129 PetriNetUnfolder]: 852/2143 cut-off events. [2021-03-25 09:38:39,949 INFO L130 PetriNetUnfolder]: For 205983/205985 co-relation queries the response was YES. [2021-03-25 09:38:40,004 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26354 conditions, 2143 events. 852/2143 cut-off events. For 205983/205985 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 17637 event pairs, 20 based on Foata normal form. 0/1809 useless extension candidates. Maximal degree in co-relation 25993. Up to 392 conditions per place. [2021-03-25 09:38:40,050 INFO L142 LiptonReduction]: Number of co-enabled transitions 3828 [2021-03-25 09:38:40,144 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:38:40,144 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:38:40,144 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 858 [2021-03-25 09:38:40,144 INFO L480 AbstractCegarLoop]: Abstraction has has 799 places, 881 transitions, 26124 flow [2021-03-25 09:38:40,144 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 49.333333333333336) internal successors, (444), 9 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:40,144 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:38:40,144 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:38:40,144 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276 [2021-03-25 09:38:40,144 INFO L428 AbstractCegarLoop]: === Iteration 278 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:38:40,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:38:40,145 INFO L82 PathProgramCache]: Analyzing trace with hash 958232467, now seen corresponding path program 14 times [2021-03-25 09:38:40,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:38:40,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264351433] [2021-03-25 09:38:40,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:38:40,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:38:40,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:40,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:38:40,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:40,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:38:40,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:40,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:38:40,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:40,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:40,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:40,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:40,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:40,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:40,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:40,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:38:40,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:40,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:38:40,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:40,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:40,228 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:38:40,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:38:40,241 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:38:40,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:38:40,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:38:40,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264351433] [2021-03-25 09:38:40,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:38:40,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:38:40,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572160868] [2021-03-25 09:38:40,244 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:38:40,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:38:40,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:38:40,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:38:40,244 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 173 [2021-03-25 09:38:40,244 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 799 places, 881 transitions, 26124 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:40,244 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:38:40,244 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 173 [2021-03-25 09:38:40,245 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:38:41,794 INFO L129 PetriNetUnfolder]: 892/2201 cut-off events. [2021-03-25 09:38:41,794 INFO L130 PetriNetUnfolder]: For 205769/205773 co-relation queries the response was YES. [2021-03-25 09:38:41,840 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28268 conditions, 2201 events. 892/2201 cut-off events. For 205769/205773 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 17720 event pairs, 17 based on Foata normal form. 5/1869 useless extension candidates. Maximal degree in co-relation 27896. Up to 1162 conditions per place. [2021-03-25 09:38:41,851 INFO L132 encePairwiseOnDemand]: 155/173 looper letters, 769 selfloop transitions, 103 changer transitions 5/895 dead transitions. [2021-03-25 09:38:41,852 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 813 places, 895 transitions, 28349 flow [2021-03-25 09:38:41,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 09:38:41,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 09:38:41,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 814 transitions. [2021-03-25 09:38:41,853 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3136801541425819 [2021-03-25 09:38:41,853 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 814 transitions. [2021-03-25 09:38:41,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 814 transitions. [2021-03-25 09:38:41,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:38:41,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 814 transitions. [2021-03-25 09:38:41,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 54.266666666666666) internal successors, (814), 15 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:41,855 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 173.0) internal successors, (2768), 16 states have internal predecessors, (2768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:41,855 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 173.0) internal successors, (2768), 16 states have internal predecessors, (2768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:41,855 INFO L185 Difference]: Start difference. First operand has 799 places, 881 transitions, 26124 flow. Second operand 15 states and 814 transitions. [2021-03-25 09:38:41,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 813 places, 895 transitions, 28349 flow [2021-03-25 09:38:44,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 797 places, 895 transitions, 28095 flow, removed 9 selfloop flow, removed 16 redundant places. [2021-03-25 09:38:44,111 INFO L241 Difference]: Finished difference. Result has 802 places, 881 transitions, 26179 flow [2021-03-25 09:38:44,111 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=25872, PETRI_DIFFERENCE_MINUEND_PLACES=783, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=881, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=102, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=778, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=26179, PETRI_PLACES=802, PETRI_TRANSITIONS=881} [2021-03-25 09:38:44,111 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 741 predicate places. [2021-03-25 09:38:44,111 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:38:44,111 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 802 places, 881 transitions, 26179 flow [2021-03-25 09:38:44,111 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 802 places, 881 transitions, 26179 flow [2021-03-25 09:38:44,120 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 801 places, 881 transitions, 26179 flow [2021-03-25 09:38:44,733 INFO L129 PetriNetUnfolder]: 843/2117 cut-off events. [2021-03-25 09:38:44,733 INFO L130 PetriNetUnfolder]: For 206023/206029 co-relation queries the response was YES. [2021-03-25 09:38:44,785 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26227 conditions, 2117 events. 843/2117 cut-off events. For 206023/206029 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 17361 event pairs, 19 based on Foata normal form. 4/1794 useless extension candidates. Maximal degree in co-relation 25867. Up to 391 conditions per place. [2021-03-25 09:38:44,827 INFO L142 LiptonReduction]: Number of co-enabled transitions 3828 [2021-03-25 09:38:45,075 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:38:45,075 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:38:45,075 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 964 [2021-03-25 09:38:45,075 INFO L480 AbstractCegarLoop]: Abstraction has has 801 places, 881 transitions, 26223 flow [2021-03-25 09:38:45,075 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:45,075 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:38:45,076 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:38:45,076 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2021-03-25 09:38:45,076 INFO L428 AbstractCegarLoop]: === Iteration 279 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:38:45,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:38:45,076 INFO L82 PathProgramCache]: Analyzing trace with hash 1112669985, now seen corresponding path program 15 times [2021-03-25 09:38:45,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:38:45,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155885528] [2021-03-25 09:38:45,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:38:45,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:38:45,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:45,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:38:45,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:45,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:38:45,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:45,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:38:45,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:45,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:45,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:45,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:45,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:45,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:45,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:45,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:38:45,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:45,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:38:45,173 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 09:38:45,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:38:45,187 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:38:45,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:38:45,202 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:38:45,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:38:45,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:38:45,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155885528] [2021-03-25 09:38:45,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:38:45,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:38:45,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601686887] [2021-03-25 09:38:45,205 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:38:45,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:38:45,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:38:45,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:38:45,206 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 174 [2021-03-25 09:38:45,206 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 801 places, 881 transitions, 26223 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:45,206 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:38:45,206 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 174 [2021-03-25 09:38:45,206 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:38:46,846 INFO L129 PetriNetUnfolder]: 891/2199 cut-off events. [2021-03-25 09:38:46,846 INFO L130 PetriNetUnfolder]: For 203572/203576 co-relation queries the response was YES. [2021-03-25 09:38:46,892 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28256 conditions, 2199 events. 891/2199 cut-off events. For 203572/203576 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 17686 event pairs, 22 based on Foata normal form. 5/1866 useless extension candidates. Maximal degree in co-relation 27888. Up to 1196 conditions per place. [2021-03-25 09:38:46,903 INFO L132 encePairwiseOnDemand]: 155/174 looper letters, 817 selfloop transitions, 52 changer transitions 2/889 dead transitions. [2021-03-25 09:38:46,903 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 816 places, 889 transitions, 28117 flow [2021-03-25 09:38:46,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 09:38:46,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 09:38:46,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 854 transitions. [2021-03-25 09:38:46,904 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3067528735632184 [2021-03-25 09:38:46,904 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 854 transitions. [2021-03-25 09:38:46,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 854 transitions. [2021-03-25 09:38:46,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:38:46,904 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 854 transitions. [2021-03-25 09:38:46,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 53.375) internal successors, (854), 16 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:46,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 174.0) internal successors, (2958), 17 states have internal predecessors, (2958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:46,906 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 174.0) internal successors, (2958), 17 states have internal predecessors, (2958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:46,906 INFO L185 Difference]: Start difference. First operand has 801 places, 881 transitions, 26223 flow. Second operand 16 states and 854 transitions. [2021-03-25 09:38:46,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 816 places, 889 transitions, 28117 flow [2021-03-25 09:38:49,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 800 places, 889 transitions, 27748 flow, removed 24 selfloop flow, removed 16 redundant places. [2021-03-25 09:38:49,138 INFO L241 Difference]: Finished difference. Result has 802 places, 881 transitions, 25914 flow [2021-03-25 09:38:49,138 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=25856, PETRI_DIFFERENCE_MINUEND_PLACES=785, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=881, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=829, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=25914, PETRI_PLACES=802, PETRI_TRANSITIONS=881} [2021-03-25 09:38:49,138 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 741 predicate places. [2021-03-25 09:38:49,139 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:38:49,139 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 802 places, 881 transitions, 25914 flow [2021-03-25 09:38:49,139 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 802 places, 881 transitions, 25914 flow [2021-03-25 09:38:49,147 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 801 places, 881 transitions, 25914 flow [2021-03-25 09:38:49,733 INFO L129 PetriNetUnfolder]: 845/2125 cut-off events. [2021-03-25 09:38:49,734 INFO L130 PetriNetUnfolder]: For 203767/203772 co-relation queries the response was YES. [2021-03-25 09:38:49,785 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26046 conditions, 2125 events. 845/2125 cut-off events. For 203767/203772 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 17514 event pairs, 19 based on Foata normal form. 3/1797 useless extension candidates. Maximal degree in co-relation 25688. Up to 387 conditions per place. [2021-03-25 09:38:49,828 INFO L142 LiptonReduction]: Number of co-enabled transitions 3828 [2021-03-25 09:38:50,078 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:38:50,078 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:38:50,079 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 940 [2021-03-25 09:38:50,079 INFO L480 AbstractCegarLoop]: Abstraction has has 801 places, 881 transitions, 25988 flow [2021-03-25 09:38:50,079 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:50,079 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:38:50,079 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:38:50,079 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2021-03-25 09:38:50,079 INFO L428 AbstractCegarLoop]: === Iteration 280 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:38:50,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:38:50,079 INFO L82 PathProgramCache]: Analyzing trace with hash -924753996, now seen corresponding path program 1 times [2021-03-25 09:38:50,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:38:50,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467091130] [2021-03-25 09:38:50,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:38:50,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:38:50,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:50,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:38:50,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:50,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:38:50,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:50,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:38:50,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:50,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:50,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:50,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:50,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:50,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:50,135 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 09:38:50,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:38:50,137 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 09:38:50,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:38:50,150 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:38:50,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:38:50,163 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:38:50,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:38:50,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:38:50,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467091130] [2021-03-25 09:38:50,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:38:50,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:38:50,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099664170] [2021-03-25 09:38:50,166 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:38:50,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:38:50,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:38:50,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:38:50,166 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 175 [2021-03-25 09:38:50,167 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 801 places, 881 transitions, 25988 flow. Second operand has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:50,167 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:38:50,167 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 175 [2021-03-25 09:38:50,167 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:38:51,738 INFO L129 PetriNetUnfolder]: 887/2195 cut-off events. [2021-03-25 09:38:51,738 INFO L130 PetriNetUnfolder]: For 204729/204742 co-relation queries the response was YES. [2021-03-25 09:38:51,779 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28112 conditions, 2195 events. 887/2195 cut-off events. For 204729/204742 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 17729 event pairs, 22 based on Foata normal form. 14/1874 useless extension candidates. Maximal degree in co-relation 27743. Up to 1200 conditions per place. [2021-03-25 09:38:51,789 INFO L132 encePairwiseOnDemand]: 156/175 looper letters, 829 selfloop transitions, 38 changer transitions 4/889 dead transitions. [2021-03-25 09:38:51,789 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 812 places, 889 transitions, 27908 flow [2021-03-25 09:38:51,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:38:51,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:38:51,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 654 transitions. [2021-03-25 09:38:51,791 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.31142857142857144 [2021-03-25 09:38:51,791 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 654 transitions. [2021-03-25 09:38:51,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 654 transitions. [2021-03-25 09:38:51,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:38:51,791 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 654 transitions. [2021-03-25 09:38:51,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 54.5) internal successors, (654), 12 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:51,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 175.0) internal successors, (2275), 13 states have internal predecessors, (2275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:51,792 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 175.0) internal successors, (2275), 13 states have internal predecessors, (2275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:51,792 INFO L185 Difference]: Start difference. First operand has 801 places, 881 transitions, 25988 flow. Second operand 12 states and 654 transitions. [2021-03-25 09:38:51,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 812 places, 889 transitions, 27908 flow [2021-03-25 09:38:53,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 799 places, 889 transitions, 27738 flow, removed 40 selfloop flow, removed 13 redundant places. [2021-03-25 09:38:53,932 INFO L241 Difference]: Finished difference. Result has 802 places, 879 transitions, 25883 flow [2021-03-25 09:38:53,933 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=25849, PETRI_DIFFERENCE_MINUEND_PLACES=788, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=881, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=843, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=25883, PETRI_PLACES=802, PETRI_TRANSITIONS=879} [2021-03-25 09:38:53,933 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 741 predicate places. [2021-03-25 09:38:53,933 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:38:53,933 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 802 places, 879 transitions, 25883 flow [2021-03-25 09:38:53,933 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 802 places, 879 transitions, 25883 flow [2021-03-25 09:38:53,942 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 801 places, 879 transitions, 25883 flow [2021-03-25 09:38:54,541 INFO L129 PetriNetUnfolder]: 827/2083 cut-off events. [2021-03-25 09:38:54,542 INFO L130 PetriNetUnfolder]: For 206429/206431 co-relation queries the response was YES. [2021-03-25 09:38:54,593 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25977 conditions, 2083 events. 827/2083 cut-off events. For 206429/206431 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 17038 event pairs, 15 based on Foata normal form. 0/1769 useless extension candidates. Maximal degree in co-relation 25617. Up to 390 conditions per place. [2021-03-25 09:38:54,637 INFO L142 LiptonReduction]: Number of co-enabled transitions 3828 [2021-03-25 09:38:54,726 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:38:54,726 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:38:54,726 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 793 [2021-03-25 09:38:54,726 INFO L480 AbstractCegarLoop]: Abstraction has has 801 places, 879 transitions, 25883 flow [2021-03-25 09:38:54,726 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:54,726 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:38:54,727 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:38:54,727 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable279 [2021-03-25 09:38:54,727 INFO L428 AbstractCegarLoop]: === Iteration 281 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:38:54,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:38:54,727 INFO L82 PathProgramCache]: Analyzing trace with hash -1786778602, now seen corresponding path program 1 times [2021-03-25 09:38:54,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:38:54,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632668136] [2021-03-25 09:38:54,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:38:54,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:38:54,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:54,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:38:54,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:54,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:38:54,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:54,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:38:54,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:54,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:38:54,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:54,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:54,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:54,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:54,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:54,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:54,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:54,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:54,785 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:38:54,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:38:54,797 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:38:54,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:38:54,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:38:54,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632668136] [2021-03-25 09:38:54,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:38:54,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:38:54,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656514895] [2021-03-25 09:38:54,800 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:38:54,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:38:54,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:38:54,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:38:54,800 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 175 [2021-03-25 09:38:54,800 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 801 places, 879 transitions, 25883 flow. Second operand has 9 states, 9 states have (on average 49.333333333333336) internal successors, (444), 9 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:54,800 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:38:54,801 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 175 [2021-03-25 09:38:54,801 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:38:56,191 INFO L129 PetriNetUnfolder]: 885/2189 cut-off events. [2021-03-25 09:38:56,191 INFO L130 PetriNetUnfolder]: For 203592/203596 co-relation queries the response was YES. [2021-03-25 09:38:56,249 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28039 conditions, 2189 events. 885/2189 cut-off events. For 203592/203596 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 17608 event pairs, 21 based on Foata normal form. 5/1860 useless extension candidates. Maximal degree in co-relation 27668. Up to 1177 conditions per place. [2021-03-25 09:38:56,260 INFO L132 encePairwiseOnDemand]: 156/175 looper letters, 794 selfloop transitions, 77 changer transitions 0/889 dead transitions. [2021-03-25 09:38:56,260 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 810 places, 889 transitions, 27955 flow [2021-03-25 09:38:56,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:38:56,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:38:56,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 567 transitions. [2021-03-25 09:38:56,262 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.324 [2021-03-25 09:38:56,262 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 567 transitions. [2021-03-25 09:38:56,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 567 transitions. [2021-03-25 09:38:56,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:38:56,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 567 transitions. [2021-03-25 09:38:56,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 56.7) internal successors, (567), 10 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:56,263 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 175.0) internal successors, (1925), 11 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:56,263 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 175.0) internal successors, (1925), 11 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:56,263 INFO L185 Difference]: Start difference. First operand has 801 places, 879 transitions, 25883 flow. Second operand 10 states and 567 transitions. [2021-03-25 09:38:56,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 810 places, 889 transitions, 27955 flow [2021-03-25 09:38:58,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 795 places, 889 transitions, 27829 flow, removed 5 selfloop flow, removed 15 redundant places. [2021-03-25 09:38:58,676 INFO L241 Difference]: Finished difference. Result has 798 places, 882 transitions, 26248 flow [2021-03-25 09:38:58,676 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=25757, PETRI_DIFFERENCE_MINUEND_PLACES=786, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=879, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=803, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=26248, PETRI_PLACES=798, PETRI_TRANSITIONS=882} [2021-03-25 09:38:58,676 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 737 predicate places. [2021-03-25 09:38:58,676 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:38:58,677 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 798 places, 882 transitions, 26248 flow [2021-03-25 09:38:58,677 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 798 places, 882 transitions, 26248 flow [2021-03-25 09:38:58,685 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 798 places, 882 transitions, 26248 flow [2021-03-25 09:38:59,284 INFO L129 PetriNetUnfolder]: 833/2103 cut-off events. [2021-03-25 09:38:59,284 INFO L130 PetriNetUnfolder]: For 210456/210459 co-relation queries the response was YES. [2021-03-25 09:38:59,335 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26289 conditions, 2103 events. 833/2103 cut-off events. For 210456/210459 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 17319 event pairs, 14 based on Foata normal form. 1/1785 useless extension candidates. Maximal degree in co-relation 25922. Up to 392 conditions per place. [2021-03-25 09:38:59,377 INFO L142 LiptonReduction]: Number of co-enabled transitions 3862 [2021-03-25 09:38:59,606 INFO L154 LiptonReduction]: Checked pairs total: 5 [2021-03-25 09:38:59,607 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:38:59,607 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 931 [2021-03-25 09:38:59,607 INFO L480 AbstractCegarLoop]: Abstraction has has 798 places, 882 transitions, 26353 flow [2021-03-25 09:38:59,607 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 49.333333333333336) internal successors, (444), 9 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:59,607 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:38:59,607 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:38:59,607 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280 [2021-03-25 09:38:59,607 INFO L428 AbstractCegarLoop]: === Iteration 282 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:38:59,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:38:59,607 INFO L82 PathProgramCache]: Analyzing trace with hash -1680895408, now seen corresponding path program 2 times [2021-03-25 09:38:59,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:38:59,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362964868] [2021-03-25 09:38:59,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:38:59,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:38:59,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:59,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:38:59,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:59,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:38:59,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:59,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:38:59,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:59,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:38:59,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:59,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:59,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:59,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:59,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:38:59,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:38:59,653 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:38:59,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:38:59,664 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:38:59,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:38:59,677 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:38:59,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:38:59,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:38:59,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362964868] [2021-03-25 09:38:59,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:38:59,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:38:59,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266975447] [2021-03-25 09:38:59,680 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:38:59,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:38:59,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:38:59,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:38:59,680 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 176 [2021-03-25 09:38:59,681 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 798 places, 882 transitions, 26353 flow. Second operand has 9 states, 9 states have (on average 49.333333333333336) internal successors, (444), 9 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:38:59,681 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:38:59,681 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 176 [2021-03-25 09:38:59,681 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:39:01,097 INFO L129 PetriNetUnfolder]: 889/2213 cut-off events. [2021-03-25 09:39:01,097 INFO L130 PetriNetUnfolder]: For 213262/213275 co-relation queries the response was YES. [2021-03-25 09:39:01,152 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28483 conditions, 2213 events. 889/2213 cut-off events. For 213262/213275 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 17950 event pairs, 23 based on Foata normal form. 10/1885 useless extension candidates. Maximal degree in co-relation 28112. Up to 1184 conditions per place. [2021-03-25 09:39:01,162 INFO L132 encePairwiseOnDemand]: 159/176 looper letters, 815 selfloop transitions, 67 changer transitions 0/900 dead transitions. [2021-03-25 09:39:01,163 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 807 places, 900 transitions, 28675 flow [2021-03-25 09:39:01,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:39:01,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:39:01,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 565 transitions. [2021-03-25 09:39:01,164 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3210227272727273 [2021-03-25 09:39:01,164 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 565 transitions. [2021-03-25 09:39:01,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 565 transitions. [2021-03-25 09:39:01,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:39:01,164 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 565 transitions. [2021-03-25 09:39:01,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 56.5) internal successors, (565), 10 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:01,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 176.0) internal successors, (1936), 11 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:01,165 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 176.0) internal successors, (1936), 11 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:01,165 INFO L185 Difference]: Start difference. First operand has 798 places, 882 transitions, 26353 flow. Second operand 10 states and 565 transitions. [2021-03-25 09:39:01,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 807 places, 900 transitions, 28675 flow [2021-03-25 09:39:03,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 800 places, 900 transitions, 28193 flow, removed 166 selfloop flow, removed 7 redundant places. [2021-03-25 09:39:03,698 INFO L241 Difference]: Finished difference. Result has 804 places, 891 transitions, 26557 flow [2021-03-25 09:39:03,699 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=25871, PETRI_DIFFERENCE_MINUEND_PLACES=791, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=882, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=816, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=26557, PETRI_PLACES=804, PETRI_TRANSITIONS=891} [2021-03-25 09:39:03,699 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 743 predicate places. [2021-03-25 09:39:03,699 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:39:03,699 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 804 places, 891 transitions, 26557 flow [2021-03-25 09:39:03,699 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 804 places, 891 transitions, 26557 flow [2021-03-25 09:39:03,708 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 804 places, 891 transitions, 26557 flow [2021-03-25 09:39:04,330 INFO L129 PetriNetUnfolder]: 835/2123 cut-off events. [2021-03-25 09:39:04,330 INFO L130 PetriNetUnfolder]: For 218862/218876 co-relation queries the response was YES. [2021-03-25 09:39:04,389 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26422 conditions, 2123 events. 835/2123 cut-off events. For 218862/218876 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 17661 event pairs, 21 based on Foata normal form. 6/1805 useless extension candidates. Maximal degree in co-relation 26051. Up to 392 conditions per place. [2021-03-25 09:39:04,431 INFO L142 LiptonReduction]: Number of co-enabled transitions 3952 [2021-03-25 09:39:04,525 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:39:04,525 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:39:04,525 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 826 [2021-03-25 09:39:04,525 INFO L480 AbstractCegarLoop]: Abstraction has has 804 places, 891 transitions, 26557 flow [2021-03-25 09:39:04,526 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 49.333333333333336) internal successors, (444), 9 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:04,526 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:39:04,526 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:39:04,526 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable281 [2021-03-25 09:39:04,526 INFO L428 AbstractCegarLoop]: === Iteration 283 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:39:04,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:39:04,526 INFO L82 PathProgramCache]: Analyzing trace with hash 2071909154, now seen corresponding path program 3 times [2021-03-25 09:39:04,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:39:04,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185225951] [2021-03-25 09:39:04,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:39:04,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:39:04,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:04,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:39:04,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:04,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:39:04,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:04,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:04,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:04,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:39:04,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:04,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:39:04,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:04,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:04,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:04,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:39:04,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:04,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:39:04,595 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:39:04,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:39:04,608 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:39:04,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:04,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:39:04,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185225951] [2021-03-25 09:39:04,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:39:04,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:39:04,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292855742] [2021-03-25 09:39:04,611 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:39:04,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:39:04,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:39:04,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:39:04,611 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 176 [2021-03-25 09:39:04,611 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 804 places, 891 transitions, 26557 flow. Second operand has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:04,612 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:39:04,612 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 176 [2021-03-25 09:39:04,612 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:39:06,101 INFO L129 PetriNetUnfolder]: 897/2251 cut-off events. [2021-03-25 09:39:06,101 INFO L130 PetriNetUnfolder]: For 222648/222661 co-relation queries the response was YES. [2021-03-25 09:39:06,166 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28942 conditions, 2251 events. 897/2251 cut-off events. For 222648/222661 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 18467 event pairs, 22 based on Foata normal form. 10/1914 useless extension candidates. Maximal degree in co-relation 28567. Up to 1189 conditions per place. [2021-03-25 09:39:06,178 INFO L132 encePairwiseOnDemand]: 160/176 looper letters, 831 selfloop transitions, 60 changer transitions 0/909 dead transitions. [2021-03-25 09:39:06,178 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 816 places, 909 transitions, 29366 flow [2021-03-25 09:39:06,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:39:06,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:39:06,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 713 transitions. [2021-03-25 09:39:06,179 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3116258741258741 [2021-03-25 09:39:06,179 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 713 transitions. [2021-03-25 09:39:06,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 713 transitions. [2021-03-25 09:39:06,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:39:06,179 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 713 transitions. [2021-03-25 09:39:06,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 54.84615384615385) internal successors, (713), 13 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:06,181 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 176.0) internal successors, (2464), 14 states have internal predecessors, (2464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:06,181 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 176.0) internal successors, (2464), 14 states have internal predecessors, (2464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:06,181 INFO L185 Difference]: Start difference. First operand has 804 places, 891 transitions, 26557 flow. Second operand 13 states and 713 transitions. [2021-03-25 09:39:06,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 816 places, 909 transitions, 29366 flow [2021-03-25 09:39:08,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 813 places, 909 transitions, 28948 flow, removed 199 selfloop flow, removed 3 redundant places. [2021-03-25 09:39:08,871 INFO L241 Difference]: Finished difference. Result has 814 places, 898 transitions, 27101 flow [2021-03-25 09:39:08,872 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=26139, PETRI_DIFFERENCE_MINUEND_PLACES=801, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=891, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=835, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=27101, PETRI_PLACES=814, PETRI_TRANSITIONS=898} [2021-03-25 09:39:08,872 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 753 predicate places. [2021-03-25 09:39:08,872 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:39:08,872 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 814 places, 898 transitions, 27101 flow [2021-03-25 09:39:08,872 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 814 places, 898 transitions, 27101 flow [2021-03-25 09:39:08,881 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 814 places, 898 transitions, 27101 flow [2021-03-25 09:39:09,500 INFO L129 PetriNetUnfolder]: 845/2166 cut-off events. [2021-03-25 09:39:09,500 INFO L130 PetriNetUnfolder]: For 228361/228363 co-relation queries the response was YES. [2021-03-25 09:39:09,554 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26857 conditions, 2166 events. 845/2166 cut-off events. For 228361/228363 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 18209 event pairs, 16 based on Foata normal form. 0/1831 useless extension candidates. Maximal degree in co-relation 26491. Up to 397 conditions per place. [2021-03-25 09:39:09,598 INFO L142 LiptonReduction]: Number of co-enabled transitions 4004 [2021-03-25 09:39:09,690 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:39:09,690 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:39:09,690 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 818 [2021-03-25 09:39:09,691 INFO L480 AbstractCegarLoop]: Abstraction has has 814 places, 898 transitions, 27101 flow [2021-03-25 09:39:09,691 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:09,691 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:39:09,691 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:39:09,691 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable282 [2021-03-25 09:39:09,691 INFO L428 AbstractCegarLoop]: === Iteration 284 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:39:09,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:39:09,691 INFO L82 PathProgramCache]: Analyzing trace with hash 1622635834, now seen corresponding path program 4 times [2021-03-25 09:39:09,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:39:09,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865227795] [2021-03-25 09:39:09,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:39:09,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:39:09,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:09,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:39:09,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:09,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:39:09,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:09,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:09,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:09,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:39:09,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:09,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:39:09,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:09,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:09,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:09,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:09,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:09,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:39:09,760 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:39:09,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:39:09,773 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:39:09,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:09,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:39:09,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865227795] [2021-03-25 09:39:09,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:39:09,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:39:09,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052737678] [2021-03-25 09:39:09,775 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:39:09,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:39:09,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:39:09,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:39:09,776 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 176 [2021-03-25 09:39:09,776 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 814 places, 898 transitions, 27101 flow. Second operand has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:09,776 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:39:09,776 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 176 [2021-03-25 09:39:09,776 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:39:11,263 INFO L129 PetriNetUnfolder]: 903/2282 cut-off events. [2021-03-25 09:39:11,263 INFO L130 PetriNetUnfolder]: For 223944/223957 co-relation queries the response was YES. [2021-03-25 09:39:11,328 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29017 conditions, 2282 events. 903/2282 cut-off events. For 223944/223957 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 18817 event pairs, 21 based on Foata normal form. 14/1940 useless extension candidates. Maximal degree in co-relation 28640. Up to 1127 conditions per place. [2021-03-25 09:39:11,340 INFO L132 encePairwiseOnDemand]: 154/176 looper letters, 745 selfloop transitions, 148 changer transitions 0/911 dead transitions. [2021-03-25 09:39:11,340 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 825 places, 911 transitions, 29167 flow [2021-03-25 09:39:11,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:39:11,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:39:11,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 675 transitions. [2021-03-25 09:39:11,341 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3196022727272727 [2021-03-25 09:39:11,341 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 675 transitions. [2021-03-25 09:39:11,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 675 transitions. [2021-03-25 09:39:11,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:39:11,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 675 transitions. [2021-03-25 09:39:11,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 56.25) internal successors, (675), 12 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:11,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 176.0) internal successors, (2288), 13 states have internal predecessors, (2288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:11,342 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 176.0) internal successors, (2288), 13 states have internal predecessors, (2288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:11,343 INFO L185 Difference]: Start difference. First operand has 814 places, 898 transitions, 27101 flow. Second operand 12 states and 675 transitions. [2021-03-25 09:39:11,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 825 places, 911 transitions, 29167 flow [2021-03-25 09:39:13,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 821 places, 911 transitions, 28311 flow, removed 406 selfloop flow, removed 4 redundant places. [2021-03-25 09:39:13,850 INFO L241 Difference]: Finished difference. Result has 823 places, 903 transitions, 26785 flow [2021-03-25 09:39:13,851 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=26245, PETRI_DIFFERENCE_MINUEND_PLACES=810, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=898, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=144, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=752, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=26785, PETRI_PLACES=823, PETRI_TRANSITIONS=903} [2021-03-25 09:39:13,851 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 762 predicate places. [2021-03-25 09:39:13,851 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:39:13,851 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 823 places, 903 transitions, 26785 flow [2021-03-25 09:39:13,851 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 823 places, 903 transitions, 26785 flow [2021-03-25 09:39:13,860 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 823 places, 903 transitions, 26785 flow [2021-03-25 09:39:14,513 INFO L129 PetriNetUnfolder]: 850/2199 cut-off events. [2021-03-25 09:39:14,513 INFO L130 PetriNetUnfolder]: For 216959/216961 co-relation queries the response was YES. [2021-03-25 09:39:14,572 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26824 conditions, 2199 events. 850/2199 cut-off events. For 216959/216961 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 18633 event pairs, 16 based on Foata normal form. 0/1856 useless extension candidates. Maximal degree in co-relation 26449. Up to 394 conditions per place. [2021-03-25 09:39:14,618 INFO L142 LiptonReduction]: Number of co-enabled transitions 4062 [2021-03-25 09:39:14,710 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:39:14,710 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:39:14,710 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 859 [2021-03-25 09:39:14,710 INFO L480 AbstractCegarLoop]: Abstraction has has 823 places, 903 transitions, 26785 flow [2021-03-25 09:39:14,711 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:14,711 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:39:14,711 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:39:14,711 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283 [2021-03-25 09:39:14,711 INFO L428 AbstractCegarLoop]: === Iteration 285 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:39:14,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:39:14,711 INFO L82 PathProgramCache]: Analyzing trace with hash -600838016, now seen corresponding path program 5 times [2021-03-25 09:39:14,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:39:14,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975664945] [2021-03-25 09:39:14,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:39:14,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:39:14,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:14,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:39:14,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:14,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:39:14,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:14,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:14,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:14,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:39:14,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:14,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:39:14,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:14,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:14,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:14,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:14,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:14,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:39:14,778 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:39:14,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:39:14,791 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:39:14,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:14,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:39:14,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975664945] [2021-03-25 09:39:14,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:39:14,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:39:14,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113104884] [2021-03-25 09:39:14,794 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:39:14,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:39:14,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:39:14,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:39:14,794 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 176 [2021-03-25 09:39:14,794 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 823 places, 903 transitions, 26785 flow. Second operand has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:14,794 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:39:14,794 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 176 [2021-03-25 09:39:14,794 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:39:16,309 INFO L129 PetriNetUnfolder]: 907/2303 cut-off events. [2021-03-25 09:39:16,310 INFO L130 PetriNetUnfolder]: For 215685/215689 co-relation queries the response was YES. [2021-03-25 09:39:16,372 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28842 conditions, 2303 events. 907/2303 cut-off events. For 215685/215689 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 19085 event pairs, 22 based on Foata normal form. 5/1947 useless extension candidates. Maximal degree in co-relation 28463. Up to 1191 conditions per place. [2021-03-25 09:39:16,384 INFO L132 encePairwiseOnDemand]: 157/176 looper letters, 833 selfloop transitions, 67 changer transitions 0/918 dead transitions. [2021-03-25 09:39:16,384 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 835 places, 918 transitions, 28741 flow [2021-03-25 09:39:16,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:39:16,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:39:16,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 715 transitions. [2021-03-25 09:39:16,386 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3125 [2021-03-25 09:39:16,386 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 715 transitions. [2021-03-25 09:39:16,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 715 transitions. [2021-03-25 09:39:16,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:39:16,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 715 transitions. [2021-03-25 09:39:16,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 55.0) internal successors, (715), 13 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:16,387 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 176.0) internal successors, (2464), 14 states have internal predecessors, (2464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:16,387 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 176.0) internal successors, (2464), 14 states have internal predecessors, (2464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:16,387 INFO L185 Difference]: Start difference. First operand has 823 places, 903 transitions, 26785 flow. Second operand 13 states and 715 transitions. [2021-03-25 09:39:16,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 835 places, 918 transitions, 28741 flow [2021-03-25 09:39:19,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 828 places, 918 transitions, 28443 flow, removed 111 selfloop flow, removed 7 redundant places. [2021-03-25 09:39:19,100 INFO L241 Difference]: Finished difference. Result has 832 places, 907 transitions, 26671 flow [2021-03-25 09:39:19,101 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=26489, PETRI_DIFFERENCE_MINUEND_PLACES=816, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=903, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=836, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=26671, PETRI_PLACES=832, PETRI_TRANSITIONS=907} [2021-03-25 09:39:19,101 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 771 predicate places. [2021-03-25 09:39:19,101 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:39:19,101 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 832 places, 907 transitions, 26671 flow [2021-03-25 09:39:19,101 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 832 places, 907 transitions, 26671 flow [2021-03-25 09:39:19,110 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 832 places, 907 transitions, 26671 flow [2021-03-25 09:39:19,747 INFO L129 PetriNetUnfolder]: 851/2208 cut-off events. [2021-03-25 09:39:19,747 INFO L130 PetriNetUnfolder]: For 217262/217265 co-relation queries the response was YES. [2021-03-25 09:39:19,803 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26545 conditions, 2208 events. 851/2208 cut-off events. For 217262/217265 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 18777 event pairs, 14 based on Foata normal form. 1/1862 useless extension candidates. Maximal degree in co-relation 26181. Up to 386 conditions per place. [2021-03-25 09:39:19,851 INFO L142 LiptonReduction]: Number of co-enabled transitions 4096 [2021-03-25 09:39:20,103 INFO L154 LiptonReduction]: Checked pairs total: 5 [2021-03-25 09:39:20,103 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:39:20,104 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1003 [2021-03-25 09:39:20,104 INFO L480 AbstractCegarLoop]: Abstraction has has 832 places, 907 transitions, 26692 flow [2021-03-25 09:39:20,104 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:20,104 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:39:20,104 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:39:20,104 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284 [2021-03-25 09:39:20,104 INFO L428 AbstractCegarLoop]: === Iteration 286 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:39:20,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:39:20,104 INFO L82 PathProgramCache]: Analyzing trace with hash -360710520, now seen corresponding path program 6 times [2021-03-25 09:39:20,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:39:20,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64916357] [2021-03-25 09:39:20,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:39:20,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:39:20,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:20,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:39:20,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:20,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:39:20,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:20,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:20,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:20,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:39:20,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:20,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:39:20,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:20,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:39:20,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:20,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:39:20,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:20,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:39:20,161 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:39:20,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:39:20,174 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:39:20,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:20,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:39:20,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64916357] [2021-03-25 09:39:20,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:39:20,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:39:20,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887726823] [2021-03-25 09:39:20,176 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:39:20,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:39:20,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:39:20,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:39:20,177 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 177 [2021-03-25 09:39:20,177 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 832 places, 907 transitions, 26692 flow. Second operand has 9 states, 9 states have (on average 49.333333333333336) internal successors, (444), 9 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:20,177 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:39:20,177 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 177 [2021-03-25 09:39:20,177 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:39:21,560 INFO L129 PetriNetUnfolder]: 908/2310 cut-off events. [2021-03-25 09:39:21,560 INFO L130 PetriNetUnfolder]: For 213537/213543 co-relation queries the response was YES. [2021-03-25 09:39:21,618 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28808 conditions, 2310 events. 908/2310 cut-off events. For 213537/213543 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 19166 event pairs, 20 based on Foata normal form. 7/1954 useless extension candidates. Maximal degree in co-relation 28433. Up to 1239 conditions per place. [2021-03-25 09:39:21,629 INFO L132 encePairwiseOnDemand]: 163/177 looper letters, 867 selfloop transitions, 25 changer transitions 0/910 dead transitions. [2021-03-25 09:39:21,629 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 842 places, 910 transitions, 28494 flow [2021-03-25 09:39:21,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:39:21,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:39:21,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 592 transitions. [2021-03-25 09:39:21,631 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.30405752439650746 [2021-03-25 09:39:21,631 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 592 transitions. [2021-03-25 09:39:21,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 592 transitions. [2021-03-25 09:39:21,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:39:21,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 592 transitions. [2021-03-25 09:39:21,631 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 53.81818181818182) internal successors, (592), 11 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:21,632 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 177.0) internal successors, (2124), 12 states have internal predecessors, (2124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:21,632 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 177.0) internal successors, (2124), 12 states have internal predecessors, (2124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:21,632 INFO L185 Difference]: Start difference. First operand has 832 places, 907 transitions, 26692 flow. Second operand 11 states and 592 transitions. [2021-03-25 09:39:21,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 842 places, 910 transitions, 28494 flow [2021-03-25 09:39:24,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 837 places, 910 transitions, 28418 flow, removed 3 selfloop flow, removed 5 redundant places. [2021-03-25 09:39:24,017 INFO L241 Difference]: Finished difference. Result has 838 places, 907 transitions, 26669 flow [2021-03-25 09:39:24,017 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=26616, PETRI_DIFFERENCE_MINUEND_PLACES=827, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=907, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=882, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=26669, PETRI_PLACES=838, PETRI_TRANSITIONS=907} [2021-03-25 09:39:24,017 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 777 predicate places. [2021-03-25 09:39:24,017 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:39:24,017 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 838 places, 907 transitions, 26669 flow [2021-03-25 09:39:24,017 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 838 places, 907 transitions, 26669 flow [2021-03-25 09:39:24,026 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 838 places, 907 transitions, 26669 flow [2021-03-25 09:39:24,676 INFO L129 PetriNetUnfolder]: 853/2219 cut-off events. [2021-03-25 09:39:24,676 INFO L130 PetriNetUnfolder]: For 215648/215678 co-relation queries the response was YES. [2021-03-25 09:39:24,732 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26804 conditions, 2219 events. 853/2219 cut-off events. For 215648/215678 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 18846 event pairs, 18 based on Foata normal form. 6/1879 useless extension candidates. Maximal degree in co-relation 26439. Up to 387 conditions per place. [2021-03-25 09:39:24,778 INFO L142 LiptonReduction]: Number of co-enabled transitions 4096 [2021-03-25 09:39:24,875 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:39:24,876 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:39:24,876 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 859 [2021-03-25 09:39:24,876 INFO L480 AbstractCegarLoop]: Abstraction has has 838 places, 907 transitions, 26669 flow [2021-03-25 09:39:24,876 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 49.333333333333336) internal successors, (444), 9 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:24,876 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:39:24,876 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:39:24,876 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable285 [2021-03-25 09:39:24,876 INFO L428 AbstractCegarLoop]: === Iteration 287 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:39:24,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:39:24,876 INFO L82 PathProgramCache]: Analyzing trace with hash -489369330, now seen corresponding path program 7 times [2021-03-25 09:39:24,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:39:24,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936774710] [2021-03-25 09:39:24,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:39:24,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:39:24,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:24,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:39:24,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:24,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:39:24,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:24,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:24,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:24,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:39:24,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:24,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:39:24,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:24,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:24,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:24,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:39:24,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:24,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:39:24,946 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:39:24,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:39:24,960 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:39:24,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:24,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:39:24,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936774710] [2021-03-25 09:39:24,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:39:24,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:39:24,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683061921] [2021-03-25 09:39:24,963 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:39:24,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:39:24,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:39:24,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:39:24,963 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 177 [2021-03-25 09:39:24,963 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 838 places, 907 transitions, 26669 flow. Second operand has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:24,963 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:39:24,963 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 177 [2021-03-25 09:39:24,964 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:39:26,515 INFO L129 PetriNetUnfolder]: 908/2309 cut-off events. [2021-03-25 09:39:26,515 INFO L130 PetriNetUnfolder]: For 213757/213772 co-relation queries the response was YES. [2021-03-25 09:39:26,576 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28737 conditions, 2309 events. 908/2309 cut-off events. For 213757/213772 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 19154 event pairs, 20 based on Foata normal form. 16/1962 useless extension candidates. Maximal degree in co-relation 28361. Up to 1167 conditions per place. [2021-03-25 09:39:26,588 INFO L132 encePairwiseOnDemand]: 157/177 looper letters, 800 selfloop transitions, 59 changer transitions 42/919 dead transitions. [2021-03-25 09:39:26,588 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 848 places, 919 transitions, 28624 flow [2021-03-25 09:39:26,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:39:26,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:39:26,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 623 transitions. [2021-03-25 09:39:26,589 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.31997945557267593 [2021-03-25 09:39:26,589 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 623 transitions. [2021-03-25 09:39:26,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 623 transitions. [2021-03-25 09:39:26,589 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:39:26,589 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 623 transitions. [2021-03-25 09:39:26,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 56.63636363636363) internal successors, (623), 11 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:26,590 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 177.0) internal successors, (2124), 12 states have internal predecessors, (2124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:26,591 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 177.0) internal successors, (2124), 12 states have internal predecessors, (2124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:26,591 INFO L185 Difference]: Start difference. First operand has 838 places, 907 transitions, 26669 flow. Second operand 11 states and 623 transitions. [2021-03-25 09:39:26,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 848 places, 919 transitions, 28624 flow [2021-03-25 09:39:29,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 840 places, 919 transitions, 28433 flow, removed 55 selfloop flow, removed 8 redundant places. [2021-03-25 09:39:29,168 INFO L241 Difference]: Finished difference. Result has 841 places, 866 transitions, 25834 flow [2021-03-25 09:39:29,168 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=26478, PETRI_DIFFERENCE_MINUEND_PLACES=830, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=907, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=848, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=25834, PETRI_PLACES=841, PETRI_TRANSITIONS=866} [2021-03-25 09:39:29,168 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 780 predicate places. [2021-03-25 09:39:29,168 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:39:29,168 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 841 places, 866 transitions, 25834 flow [2021-03-25 09:39:29,168 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 841 places, 866 transitions, 25834 flow [2021-03-25 09:39:29,176 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 818 places, 866 transitions, 25834 flow [2021-03-25 09:39:29,769 INFO L129 PetriNetUnfolder]: 823/2089 cut-off events. [2021-03-25 09:39:29,769 INFO L130 PetriNetUnfolder]: For 211993/211995 co-relation queries the response was YES. [2021-03-25 09:39:29,821 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26299 conditions, 2089 events. 823/2089 cut-off events. For 211993/211995 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 17229 event pairs, 15 based on Foata normal form. 0/1767 useless extension candidates. Maximal degree in co-relation 25942. Up to 381 conditions per place. [2021-03-25 09:39:29,864 INFO L142 LiptonReduction]: Number of co-enabled transitions 3738 [2021-03-25 09:39:29,953 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:39:29,953 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:39:29,953 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 785 [2021-03-25 09:39:29,954 INFO L480 AbstractCegarLoop]: Abstraction has has 818 places, 866 transitions, 25834 flow [2021-03-25 09:39:29,954 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.2) internal successors, (492), 10 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:29,954 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:39:29,954 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:39:29,954 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286 [2021-03-25 09:39:29,954 INFO L428 AbstractCegarLoop]: === Iteration 288 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:39:29,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:39:29,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1032625307, now seen corresponding path program 6 times [2021-03-25 09:39:29,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:39:29,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129225770] [2021-03-25 09:39:29,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:39:29,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:39:29,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:29,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:39:29,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:29,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:39:29,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:29,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:39:29,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:29,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:29,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:29,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:39:29,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:29,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:39:30,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:30,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:30,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:30,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:30,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:30,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:39:30,047 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:39:30,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:39:30,062 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:39:30,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:30,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:39:30,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129225770] [2021-03-25 09:39:30,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:39:30,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:39:30,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948810618] [2021-03-25 09:39:30,065 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:39:30,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:39:30,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:39:30,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:39:30,065 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 177 [2021-03-25 09:39:30,066 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 818 places, 866 transitions, 25834 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:30,066 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:39:30,066 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 177 [2021-03-25 09:39:30,066 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:39:31,547 INFO L129 PetriNetUnfolder]: 880/2195 cut-off events. [2021-03-25 09:39:31,548 INFO L130 PetriNetUnfolder]: For 216772/216776 co-relation queries the response was YES. [2021-03-25 09:39:31,602 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28464 conditions, 2195 events. 880/2195 cut-off events. For 216772/216776 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 17712 event pairs, 18 based on Foata normal form. 5/1858 useless extension candidates. Maximal degree in co-relation 28105. Up to 1146 conditions per place. [2021-03-25 09:39:31,613 INFO L132 encePairwiseOnDemand]: 162/177 looper letters, 783 selfloop transitions, 83 changer transitions 0/884 dead transitions. [2021-03-25 09:39:31,613 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 832 places, 884 transitions, 28150 flow [2021-03-25 09:39:31,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 09:39:31,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 09:39:31,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 819 transitions. [2021-03-25 09:39:31,614 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.30847457627118646 [2021-03-25 09:39:31,614 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 819 transitions. [2021-03-25 09:39:31,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 819 transitions. [2021-03-25 09:39:31,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:39:31,615 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 819 transitions. [2021-03-25 09:39:31,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 54.6) internal successors, (819), 15 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:31,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 177.0) internal successors, (2832), 16 states have internal predecessors, (2832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:31,616 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 177.0) internal successors, (2832), 16 states have internal predecessors, (2832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:31,616 INFO L185 Difference]: Start difference. First operand has 818 places, 866 transitions, 25834 flow. Second operand 15 states and 819 transitions. [2021-03-25 09:39:31,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 832 places, 884 transitions, 28150 flow [2021-03-25 09:39:33,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 806 places, 884 transitions, 27713 flow, removed 32 selfloop flow, removed 26 redundant places. [2021-03-25 09:39:33,944 INFO L241 Difference]: Finished difference. Result has 809 places, 869 transitions, 25914 flow [2021-03-25 09:39:33,944 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=25415, PETRI_DIFFERENCE_MINUEND_PLACES=792, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=866, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=783, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=25914, PETRI_PLACES=809, PETRI_TRANSITIONS=869} [2021-03-25 09:39:33,944 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 748 predicate places. [2021-03-25 09:39:33,944 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:39:33,944 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 809 places, 869 transitions, 25914 flow [2021-03-25 09:39:33,944 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 809 places, 869 transitions, 25914 flow [2021-03-25 09:39:33,952 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 809 places, 869 transitions, 25914 flow [2021-03-25 09:39:34,632 INFO L129 PetriNetUnfolder]: 821/2099 cut-off events. [2021-03-25 09:39:34,632 INFO L130 PetriNetUnfolder]: For 217204/217207 co-relation queries the response was YES. [2021-03-25 09:39:34,694 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26282 conditions, 2099 events. 821/2099 cut-off events. For 217204/217207 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 17384 event pairs, 17 based on Foata normal form. 1/1777 useless extension candidates. Maximal degree in co-relation 25923. Up to 384 conditions per place. [2021-03-25 09:39:34,747 INFO L142 LiptonReduction]: Number of co-enabled transitions 3780 [2021-03-25 09:39:34,837 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:39:34,837 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:39:34,837 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 893 [2021-03-25 09:39:34,838 INFO L480 AbstractCegarLoop]: Abstraction has has 809 places, 869 transitions, 25914 flow [2021-03-25 09:39:34,838 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:34,838 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:39:34,838 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:39:34,838 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable287 [2021-03-25 09:39:34,838 INFO L428 AbstractCegarLoop]: === Iteration 289 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:39:34,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:39:34,838 INFO L82 PathProgramCache]: Analyzing trace with hash 10852335, now seen corresponding path program 7 times [2021-03-25 09:39:34,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:39:34,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65250369] [2021-03-25 09:39:34,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:39:34,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:39:34,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:34,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:39:34,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:34,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:39:34,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:34,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:39:34,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:34,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:34,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:34,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:39:34,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:34,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:39:34,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:34,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:34,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:34,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:34,924 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:39:34,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:39:34,939 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:39:34,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:39:34,956 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:39:34,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:34,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:39:34,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65250369] [2021-03-25 09:39:34,959 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:39:34,959 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:39:34,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835312020] [2021-03-25 09:39:34,959 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:39:34,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:39:34,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:39:34,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:39:34,960 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 177 [2021-03-25 09:39:34,960 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 809 places, 869 transitions, 25914 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:34,960 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:39:34,960 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 177 [2021-03-25 09:39:34,960 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:39:36,506 INFO L129 PetriNetUnfolder]: 886/2221 cut-off events. [2021-03-25 09:39:36,507 INFO L130 PetriNetUnfolder]: For 213469/213473 co-relation queries the response was YES. [2021-03-25 09:39:36,563 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28371 conditions, 2221 events. 886/2221 cut-off events. For 213469/213473 co-relation queries the response was YES. Maximal size of possible extension queue 212. Compared 18016 event pairs, 19 based on Foata normal form. 5/1876 useless extension candidates. Maximal degree in co-relation 28001. Up to 1157 conditions per place. [2021-03-25 09:39:36,574 INFO L132 encePairwiseOnDemand]: 162/177 looper letters, 800 selfloop transitions, 64 changer transitions 2/884 dead transitions. [2021-03-25 09:39:36,575 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 823 places, 884 transitions, 27949 flow [2021-03-25 09:39:36,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 09:39:36,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 09:39:36,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 816 transitions. [2021-03-25 09:39:36,576 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3073446327683616 [2021-03-25 09:39:36,576 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 816 transitions. [2021-03-25 09:39:36,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 816 transitions. [2021-03-25 09:39:36,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:39:36,576 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 816 transitions. [2021-03-25 09:39:36,577 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 54.4) internal successors, (816), 15 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:36,578 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 177.0) internal successors, (2832), 16 states have internal predecessors, (2832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:36,578 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 177.0) internal successors, (2832), 16 states have internal predecessors, (2832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:36,578 INFO L185 Difference]: Start difference. First operand has 809 places, 869 transitions, 25914 flow. Second operand 15 states and 816 transitions. [2021-03-25 09:39:36,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 823 places, 884 transitions, 27949 flow [2021-03-25 09:39:39,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 812 places, 884 transitions, 27713 flow, removed 67 selfloop flow, removed 11 redundant places. [2021-03-25 09:39:39,026 INFO L241 Difference]: Finished difference. Result has 814 places, 868 transitions, 25798 flow [2021-03-25 09:39:39,027 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=25678, PETRI_DIFFERENCE_MINUEND_PLACES=798, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=869, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=805, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=25798, PETRI_PLACES=814, PETRI_TRANSITIONS=868} [2021-03-25 09:39:39,027 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 753 predicate places. [2021-03-25 09:39:39,027 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:39:39,027 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 814 places, 868 transitions, 25798 flow [2021-03-25 09:39:39,027 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 814 places, 868 transitions, 25798 flow [2021-03-25 09:39:39,035 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 813 places, 868 transitions, 25798 flow [2021-03-25 09:39:39,753 INFO L129 PetriNetUnfolder]: 826/2118 cut-off events. [2021-03-25 09:39:39,753 INFO L130 PetriNetUnfolder]: For 216792/216794 co-relation queries the response was YES. [2021-03-25 09:39:39,792 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26334 conditions, 2118 events. 826/2118 cut-off events. For 216792/216794 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 17619 event pairs, 17 based on Foata normal form. 0/1789 useless extension candidates. Maximal degree in co-relation 25974. Up to 383 conditions per place. [2021-03-25 09:39:39,829 INFO L142 LiptonReduction]: Number of co-enabled transitions 3780 [2021-03-25 09:39:39,909 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:39:39,909 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:39:39,909 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 882 [2021-03-25 09:39:39,909 INFO L480 AbstractCegarLoop]: Abstraction has has 813 places, 868 transitions, 25798 flow [2021-03-25 09:39:39,909 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:39,909 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:39:39,909 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:39:39,909 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable288 [2021-03-25 09:39:39,909 INFO L428 AbstractCegarLoop]: === Iteration 290 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:39:39,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:39:39,910 INFO L82 PathProgramCache]: Analyzing trace with hash 20443671, now seen corresponding path program 8 times [2021-03-25 09:39:39,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:39:39,910 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060383130] [2021-03-25 09:39:39,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:39:39,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:39:39,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:39,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:39:39,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:39,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:39:39,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:39,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:39:39,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:39,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:39,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:39,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:39:39,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:39,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:39:39,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:39,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:39,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:39,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:39,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:39,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:39:40,000 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:39:40,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:39:40,015 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:39:40,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:40,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:39:40,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060383130] [2021-03-25 09:39:40,017 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:39:40,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:39:40,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89336598] [2021-03-25 09:39:40,017 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:39:40,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:39:40,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:39:40,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:39:40,018 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 177 [2021-03-25 09:39:40,018 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 813 places, 868 transitions, 25798 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:40,018 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:39:40,018 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 177 [2021-03-25 09:39:40,018 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:39:41,490 INFO L129 PetriNetUnfolder]: 881/2202 cut-off events. [2021-03-25 09:39:41,490 INFO L130 PetriNetUnfolder]: For 209990/209994 co-relation queries the response was YES. [2021-03-25 09:39:41,546 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28163 conditions, 2202 events. 881/2202 cut-off events. For 209990/209994 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 17816 event pairs, 20 based on Foata normal form. 5/1862 useless extension candidates. Maximal degree in co-relation 27792. Up to 1156 conditions per place. [2021-03-25 09:39:41,556 INFO L132 encePairwiseOnDemand]: 160/177 looper letters, 798 selfloop transitions, 63 changer transitions 5/884 dead transitions. [2021-03-25 09:39:41,556 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 828 places, 884 transitions, 27865 flow [2021-03-25 09:39:41,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 09:39:41,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 09:39:41,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 866 transitions. [2021-03-25 09:39:41,558 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3057909604519774 [2021-03-25 09:39:41,558 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 866 transitions. [2021-03-25 09:39:41,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 866 transitions. [2021-03-25 09:39:41,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:39:41,558 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 866 transitions. [2021-03-25 09:39:41,559 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 54.125) internal successors, (866), 16 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:41,560 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 177.0) internal successors, (3009), 17 states have internal predecessors, (3009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:41,560 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 177.0) internal successors, (3009), 17 states have internal predecessors, (3009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:41,560 INFO L185 Difference]: Start difference. First operand has 813 places, 868 transitions, 25798 flow. Second operand 16 states and 866 transitions. [2021-03-25 09:39:41,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 828 places, 884 transitions, 27865 flow [2021-03-25 09:39:43,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 812 places, 884 transitions, 27700 flow, removed 6 selfloop flow, removed 16 redundant places. [2021-03-25 09:39:43,777 INFO L241 Difference]: Finished difference. Result has 814 places, 865 transitions, 25663 flow [2021-03-25 09:39:43,778 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=25637, PETRI_DIFFERENCE_MINUEND_PLACES=797, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=868, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=805, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=25663, PETRI_PLACES=814, PETRI_TRANSITIONS=865} [2021-03-25 09:39:43,778 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 753 predicate places. [2021-03-25 09:39:43,778 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:39:43,778 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 814 places, 865 transitions, 25663 flow [2021-03-25 09:39:43,778 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 814 places, 865 transitions, 25663 flow [2021-03-25 09:39:43,786 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 812 places, 865 transitions, 25663 flow [2021-03-25 09:39:44,385 INFO L129 PetriNetUnfolder]: 808/2054 cut-off events. [2021-03-25 09:39:44,386 INFO L130 PetriNetUnfolder]: For 208043/208054 co-relation queries the response was YES. [2021-03-25 09:39:44,438 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25890 conditions, 2054 events. 808/2054 cut-off events. For 208043/208054 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 16908 event pairs, 18 based on Foata normal form. 1/1744 useless extension candidates. Maximal degree in co-relation 25531. Up to 379 conditions per place. [2021-03-25 09:39:44,484 INFO L142 LiptonReduction]: Number of co-enabled transitions 3754 [2021-03-25 09:39:44,570 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:39:44,570 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:39:44,570 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 792 [2021-03-25 09:39:44,570 INFO L480 AbstractCegarLoop]: Abstraction has has 812 places, 865 transitions, 25663 flow [2021-03-25 09:39:44,570 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:44,570 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:39:44,570 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:39:44,570 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable289 [2021-03-25 09:39:44,570 INFO L428 AbstractCegarLoop]: === Iteration 291 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:39:44,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:39:44,571 INFO L82 PathProgramCache]: Analyzing trace with hash -2004034627, now seen corresponding path program 12 times [2021-03-25 09:39:44,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:39:44,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668556910] [2021-03-25 09:39:44,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:39:44,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:39:44,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:44,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:39:44,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:44,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:39:44,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:44,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:44,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:44,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:39:44,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:44,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:39:44,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:44,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:44,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:44,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:44,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:44,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:44,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:44,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:39:44,669 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:39:44,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:39:44,685 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:39:44,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:44,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:39:44,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668556910] [2021-03-25 09:39:44,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:39:44,688 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:39:44,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022181149] [2021-03-25 09:39:44,688 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:39:44,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:39:44,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:39:44,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:39:44,689 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 177 [2021-03-25 09:39:44,689 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 812 places, 865 transitions, 25663 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:44,689 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:39:44,689 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 177 [2021-03-25 09:39:44,689 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:39:46,309 INFO L129 PetriNetUnfolder]: 887/2212 cut-off events. [2021-03-25 09:39:46,309 INFO L130 PetriNetUnfolder]: For 213704/213708 co-relation queries the response was YES. [2021-03-25 09:39:46,364 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28405 conditions, 2212 events. 887/2212 cut-off events. For 213704/213708 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 17953 event pairs, 21 based on Foata normal form. 6/1870 useless extension candidates. Maximal degree in co-relation 28035. Up to 1126 conditions per place. [2021-03-25 09:39:46,376 INFO L132 encePairwiseOnDemand]: 161/177 looper letters, 760 selfloop transitions, 95 changer transitions 14/887 dead transitions. [2021-03-25 09:39:46,376 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 827 places, 887 transitions, 28662 flow [2021-03-25 09:39:46,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 09:39:46,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 09:39:46,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 873 transitions. [2021-03-25 09:39:46,377 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3082627118644068 [2021-03-25 09:39:46,377 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 873 transitions. [2021-03-25 09:39:46,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 873 transitions. [2021-03-25 09:39:46,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:39:46,378 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 873 transitions. [2021-03-25 09:39:46,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 54.5625) internal successors, (873), 16 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:46,379 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 177.0) internal successors, (3009), 17 states have internal predecessors, (3009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:46,379 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 177.0) internal successors, (3009), 17 states have internal predecessors, (3009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:46,379 INFO L185 Difference]: Start difference. First operand has 812 places, 865 transitions, 25663 flow. Second operand 16 states and 873 transitions. [2021-03-25 09:39:46,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 827 places, 887 transitions, 28662 flow [2021-03-25 09:39:48,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 809 places, 887 transitions, 28436 flow, removed 9 selfloop flow, removed 18 redundant places. [2021-03-25 09:39:48,798 INFO L241 Difference]: Finished difference. Result has 817 places, 862 transitions, 25781 flow [2021-03-25 09:39:48,799 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=25445, PETRI_DIFFERENCE_MINUEND_PLACES=794, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=865, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=771, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=25781, PETRI_PLACES=817, PETRI_TRANSITIONS=862} [2021-03-25 09:39:48,799 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 756 predicate places. [2021-03-25 09:39:48,799 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:39:48,799 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 817 places, 862 transitions, 25781 flow [2021-03-25 09:39:48,799 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 817 places, 862 transitions, 25781 flow [2021-03-25 09:39:48,807 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 813 places, 862 transitions, 25781 flow [2021-03-25 09:39:49,381 INFO L129 PetriNetUnfolder]: 809/2053 cut-off events. [2021-03-25 09:39:49,381 INFO L130 PetriNetUnfolder]: For 218189/218219 co-relation queries the response was YES. [2021-03-25 09:39:49,431 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26054 conditions, 2053 events. 809/2053 cut-off events. For 218189/218219 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 16929 event pairs, 21 based on Foata normal form. 6/1746 useless extension candidates. Maximal degree in co-relation 25691. Up to 376 conditions per place. [2021-03-25 09:39:49,473 INFO L142 LiptonReduction]: Number of co-enabled transitions 3730 [2021-03-25 09:39:49,560 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:39:49,560 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:39:49,560 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 761 [2021-03-25 09:39:49,560 INFO L480 AbstractCegarLoop]: Abstraction has has 813 places, 862 transitions, 25781 flow [2021-03-25 09:39:49,560 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:49,560 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:39:49,560 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:39:49,560 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable290 [2021-03-25 09:39:49,560 INFO L428 AbstractCegarLoop]: === Iteration 292 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:39:49,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:39:49,561 INFO L82 PathProgramCache]: Analyzing trace with hash 1298610079, now seen corresponding path program 2 times [2021-03-25 09:39:49,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:39:49,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137093218] [2021-03-25 09:39:49,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:39:49,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:39:49,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:49,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:39:49,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:49,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:39:49,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:49,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:49,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:49,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:39:49,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:49,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:49,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:49,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:49,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:49,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:39:49,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:49,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:39:49,617 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:39:49,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:39:49,629 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:39:49,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:39:49,642 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:39:49,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:49,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:39:49,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137093218] [2021-03-25 09:39:49,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:39:49,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:39:49,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353519144] [2021-03-25 09:39:49,645 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:39:49,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:39:49,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:39:49,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:39:49,646 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 177 [2021-03-25 09:39:49,646 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 813 places, 862 transitions, 25781 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:49,646 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:39:49,646 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 177 [2021-03-25 09:39:49,646 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:39:51,030 INFO L129 PetriNetUnfolder]: 870/2165 cut-off events. [2021-03-25 09:39:51,030 INFO L130 PetriNetUnfolder]: For 215671/215684 co-relation queries the response was YES. [2021-03-25 09:39:51,085 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28221 conditions, 2165 events. 870/2165 cut-off events. For 215671/215684 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 17454 event pairs, 21 based on Foata normal form. 14/1843 useless extension candidates. Maximal degree in co-relation 27847. Up to 1085 conditions per place. [2021-03-25 09:39:51,095 INFO L132 encePairwiseOnDemand]: 157/177 looper letters, 724 selfloop transitions, 121 changer transitions 12/875 dead transitions. [2021-03-25 09:39:51,095 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 823 places, 875 transitions, 28179 flow [2021-03-25 09:39:51,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:39:51,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:39:51,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 624 transitions. [2021-03-25 09:39:51,097 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3204930662557781 [2021-03-25 09:39:51,097 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 624 transitions. [2021-03-25 09:39:51,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 624 transitions. [2021-03-25 09:39:51,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:39:51,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 624 transitions. [2021-03-25 09:39:51,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 56.72727272727273) internal successors, (624), 11 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:51,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 177.0) internal successors, (2124), 12 states have internal predecessors, (2124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:51,098 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 177.0) internal successors, (2124), 12 states have internal predecessors, (2124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:51,098 INFO L185 Difference]: Start difference. First operand has 813 places, 862 transitions, 25781 flow. Second operand 11 states and 624 transitions. [2021-03-25 09:39:51,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 823 places, 875 transitions, 28179 flow [2021-03-25 09:39:53,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 806 places, 875 transitions, 27740 flow, removed 105 selfloop flow, removed 17 redundant places. [2021-03-25 09:39:53,524 INFO L241 Difference]: Finished difference. Result has 809 places, 853 transitions, 25546 flow [2021-03-25 09:39:53,524 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=25354, PETRI_DIFFERENCE_MINUEND_PLACES=796, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=862, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=120, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=741, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=25546, PETRI_PLACES=809, PETRI_TRANSITIONS=853} [2021-03-25 09:39:53,524 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 748 predicate places. [2021-03-25 09:39:53,524 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:39:53,524 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 809 places, 853 transitions, 25546 flow [2021-03-25 09:39:53,525 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 809 places, 853 transitions, 25546 flow [2021-03-25 09:39:53,533 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 805 places, 853 transitions, 25546 flow [2021-03-25 09:39:54,083 INFO L129 PetriNetUnfolder]: 796/2018 cut-off events. [2021-03-25 09:39:54,084 INFO L130 PetriNetUnfolder]: For 213823/213854 co-relation queries the response was YES. [2021-03-25 09:39:54,131 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25802 conditions, 2018 events. 796/2018 cut-off events. For 213823/213854 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 16519 event pairs, 21 based on Foata normal form. 7/1720 useless extension candidates. Maximal degree in co-relation 25444. Up to 369 conditions per place. [2021-03-25 09:39:54,172 INFO L142 LiptonReduction]: Number of co-enabled transitions 3642 [2021-03-25 09:39:54,258 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:39:54,258 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:39:54,258 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 734 [2021-03-25 09:39:54,258 INFO L480 AbstractCegarLoop]: Abstraction has has 805 places, 853 transitions, 25546 flow [2021-03-25 09:39:54,258 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:54,258 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:39:54,258 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:39:54,258 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable291 [2021-03-25 09:39:54,258 INFO L428 AbstractCegarLoop]: === Iteration 293 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:39:54,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:39:54,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1835147909, now seen corresponding path program 3 times [2021-03-25 09:39:54,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:39:54,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033357871] [2021-03-25 09:39:54,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:39:54,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:39:54,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:54,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:39:54,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:54,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:39:54,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:54,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:54,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:54,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:39:54,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:54,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:54,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:54,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:39:54,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:54,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:54,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:54,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:54,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:54,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:39:54,331 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:39:54,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:39:54,344 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:39:54,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:54,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:39:54,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033357871] [2021-03-25 09:39:54,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:39:54,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:39:54,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333436491] [2021-03-25 09:39:54,346 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:39:54,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:39:54,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:39:54,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:39:54,347 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 177 [2021-03-25 09:39:54,347 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 805 places, 853 transitions, 25546 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:54,347 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:39:54,347 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 177 [2021-03-25 09:39:54,347 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:39:55,731 INFO L129 PetriNetUnfolder]: 865/2147 cut-off events. [2021-03-25 09:39:55,732 INFO L130 PetriNetUnfolder]: For 214623/214638 co-relation queries the response was YES. [2021-03-25 09:39:55,788 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28106 conditions, 2147 events. 865/2147 cut-off events. For 214623/214638 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 17176 event pairs, 16 based on Foata normal form. 16/1831 useless extension candidates. Maximal degree in co-relation 27737. Up to 1124 conditions per place. [2021-03-25 09:39:55,799 INFO L132 encePairwiseOnDemand]: 156/177 looper letters, 750 selfloop transitions, 99 changer transitions 5/872 dead transitions. [2021-03-25 09:39:55,799 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 816 places, 872 transitions, 28170 flow [2021-03-25 09:39:55,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:39:55,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:39:55,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 676 transitions. [2021-03-25 09:39:55,800 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3182674199623352 [2021-03-25 09:39:55,801 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 676 transitions. [2021-03-25 09:39:55,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 676 transitions. [2021-03-25 09:39:55,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:39:55,801 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 676 transitions. [2021-03-25 09:39:55,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 56.333333333333336) internal successors, (676), 12 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:55,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 177.0) internal successors, (2301), 13 states have internal predecessors, (2301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:55,802 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 177.0) internal successors, (2301), 13 states have internal predecessors, (2301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:55,802 INFO L185 Difference]: Start difference. First operand has 805 places, 853 transitions, 25546 flow. Second operand 12 states and 676 transitions. [2021-03-25 09:39:55,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 816 places, 872 transitions, 28170 flow [2021-03-25 09:39:58,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 802 places, 872 transitions, 27858 flow, removed 41 selfloop flow, removed 14 redundant places. [2021-03-25 09:39:58,126 INFO L241 Difference]: Finished difference. Result has 806 places, 857 transitions, 25753 flow [2021-03-25 09:39:58,126 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=25234, PETRI_DIFFERENCE_MINUEND_PLACES=791, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=853, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=756, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=25753, PETRI_PLACES=806, PETRI_TRANSITIONS=857} [2021-03-25 09:39:58,126 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 745 predicate places. [2021-03-25 09:39:58,126 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:39:58,126 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 806 places, 857 transitions, 25753 flow [2021-03-25 09:39:58,127 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 806 places, 857 transitions, 25753 flow [2021-03-25 09:39:58,135 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 805 places, 857 transitions, 25753 flow [2021-03-25 09:39:58,787 INFO L129 PetriNetUnfolder]: 813/2060 cut-off events. [2021-03-25 09:39:58,787 INFO L130 PetriNetUnfolder]: For 213318/213320 co-relation queries the response was YES. [2021-03-25 09:39:58,830 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26035 conditions, 2060 events. 813/2060 cut-off events. For 213318/213320 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 16867 event pairs, 16 based on Foata normal form. 0/1740 useless extension candidates. Maximal degree in co-relation 25677. Up to 373 conditions per place. [2021-03-25 09:39:58,870 INFO L142 LiptonReduction]: Number of co-enabled transitions 3642 [2021-03-25 09:39:58,943 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:39:58,943 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:39:58,943 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 817 [2021-03-25 09:39:58,943 INFO L480 AbstractCegarLoop]: Abstraction has has 805 places, 857 transitions, 25753 flow [2021-03-25 09:39:58,943 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:58,943 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:39:58,943 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:39:58,943 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable292 [2021-03-25 09:39:58,943 INFO L428 AbstractCegarLoop]: === Iteration 294 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:39:58,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:39:58,944 INFO L82 PathProgramCache]: Analyzing trace with hash -442827321, now seen corresponding path program 9 times [2021-03-25 09:39:58,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:39:58,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109163803] [2021-03-25 09:39:58,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:39:58,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:39:58,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:58,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:39:58,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:58,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:39:58,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:58,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:39:58,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:58,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:58,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:58,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:39:58,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:58,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:39:58,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:58,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:59,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:59,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:39:59,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:39:59,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:39:59,023 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:39:59,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:39:59,038 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:39:59,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:39:59,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:39:59,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109163803] [2021-03-25 09:39:59,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:39:59,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:39:59,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038497927] [2021-03-25 09:39:59,040 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:39:59,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:39:59,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:39:59,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:39:59,041 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 177 [2021-03-25 09:39:59,041 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 805 places, 857 transitions, 25753 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:39:59,041 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:39:59,041 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 177 [2021-03-25 09:39:59,041 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:40:00,411 INFO L129 PetriNetUnfolder]: 865/2146 cut-off events. [2021-03-25 09:40:00,411 INFO L130 PetriNetUnfolder]: For 213855/213866 co-relation queries the response was YES. [2021-03-25 09:40:00,464 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27968 conditions, 2146 events. 865/2146 cut-off events. For 213855/213866 co-relation queries the response was YES. Maximal size of possible extension queue 212. Compared 17205 event pairs, 22 based on Foata normal form. 8/1821 useless extension candidates. Maximal degree in co-relation 27599. Up to 1147 conditions per place. [2021-03-25 09:40:00,474 INFO L132 encePairwiseOnDemand]: 161/177 looper letters, 790 selfloop transitions, 57 changer transitions 6/871 dead transitions. [2021-03-25 09:40:00,474 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 818 places, 871 transitions, 27684 flow [2021-03-25 09:40:00,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:40:00,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:40:00,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 762 transitions. [2021-03-25 09:40:00,476 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3075060532687651 [2021-03-25 09:40:00,476 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 762 transitions. [2021-03-25 09:40:00,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 762 transitions. [2021-03-25 09:40:00,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:40:00,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 762 transitions. [2021-03-25 09:40:00,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 54.42857142857143) internal successors, (762), 14 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:00,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 177.0) internal successors, (2655), 15 states have internal predecessors, (2655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:00,477 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 177.0) internal successors, (2655), 15 states have internal predecessors, (2655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:00,477 INFO L185 Difference]: Start difference. First operand has 805 places, 857 transitions, 25753 flow. Second operand 14 states and 762 transitions. [2021-03-25 09:40:00,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 818 places, 871 transitions, 27684 flow [2021-03-25 09:40:02,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 809 places, 871 transitions, 27309 flow, removed 114 selfloop flow, removed 9 redundant places. [2021-03-25 09:40:02,884 INFO L241 Difference]: Finished difference. Result has 812 places, 854 transitions, 25473 flow [2021-03-25 09:40:02,885 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=25378, PETRI_DIFFERENCE_MINUEND_PLACES=796, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=857, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=800, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=25473, PETRI_PLACES=812, PETRI_TRANSITIONS=854} [2021-03-25 09:40:02,885 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 751 predicate places. [2021-03-25 09:40:02,885 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:40:02,885 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 812 places, 854 transitions, 25473 flow [2021-03-25 09:40:02,885 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 812 places, 854 transitions, 25473 flow [2021-03-25 09:40:02,893 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 811 places, 854 transitions, 25473 flow [2021-03-25 09:40:03,486 INFO L129 PetriNetUnfolder]: 812/2060 cut-off events. [2021-03-25 09:40:03,486 INFO L130 PetriNetUnfolder]: For 214808/214811 co-relation queries the response was YES. [2021-03-25 09:40:03,538 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25855 conditions, 2060 events. 812/2060 cut-off events. For 214808/214811 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 16940 event pairs, 14 based on Foata normal form. 1/1741 useless extension candidates. Maximal degree in co-relation 25497. Up to 368 conditions per place. [2021-03-25 09:40:03,583 INFO L142 LiptonReduction]: Number of co-enabled transitions 3614 [2021-03-25 09:40:03,666 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:40:03,667 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:40:03,667 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 782 [2021-03-25 09:40:03,667 INFO L480 AbstractCegarLoop]: Abstraction has has 811 places, 854 transitions, 25473 flow [2021-03-25 09:40:03,667 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:03,667 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:40:03,667 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:40:03,667 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable293 [2021-03-25 09:40:03,667 INFO L428 AbstractCegarLoop]: === Iteration 295 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:40:03,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:40:03,667 INFO L82 PathProgramCache]: Analyzing trace with hash -641444432, now seen corresponding path program 2 times [2021-03-25 09:40:03,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:40:03,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047528682] [2021-03-25 09:40:03,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:40:03,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:40:03,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:03,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:40:03,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:03,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:40:03,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:03,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:03,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:03,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:40:03,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:03,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:40:03,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:03,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:40:03,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:03,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:40:03,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:03,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:03,739 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:40:03,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:40:03,742 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:40:03,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:40:03,755 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:40:03,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:03,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:40:03,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047528682] [2021-03-25 09:40:03,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:40:03,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:40:03,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551643910] [2021-03-25 09:40:03,758 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:40:03,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:40:03,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:40:03,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:40:03,759 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 177 [2021-03-25 09:40:03,759 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 811 places, 854 transitions, 25473 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:03,759 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:40:03,759 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 177 [2021-03-25 09:40:03,759 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:40:05,735 INFO L129 PetriNetUnfolder]: 885/2193 cut-off events. [2021-03-25 09:40:05,736 INFO L130 PetriNetUnfolder]: For 231501/231514 co-relation queries the response was YES. [2021-03-25 09:40:05,792 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29078 conditions, 2193 events. 885/2193 cut-off events. For 231501/231514 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 17687 event pairs, 15 based on Foata normal form. 14/1866 useless extension candidates. Maximal degree in co-relation 28709. Up to 1033 conditions per place. [2021-03-25 09:40:05,805 INFO L132 encePairwiseOnDemand]: 154/177 looper letters, 695 selfloop transitions, 180 changer transitions 1/894 dead transitions. [2021-03-25 09:40:05,805 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 823 places, 894 transitions, 29928 flow [2021-03-25 09:40:05,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:40:05,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:40:05,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 737 transitions. [2021-03-25 09:40:05,807 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3202955236853542 [2021-03-25 09:40:05,807 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 737 transitions. [2021-03-25 09:40:05,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 737 transitions. [2021-03-25 09:40:05,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:40:05,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 737 transitions. [2021-03-25 09:40:05,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 56.69230769230769) internal successors, (737), 13 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:05,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 177.0) internal successors, (2478), 14 states have internal predecessors, (2478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:05,808 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 177.0) internal successors, (2478), 14 states have internal predecessors, (2478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:05,808 INFO L185 Difference]: Start difference. First operand has 811 places, 854 transitions, 25473 flow. Second operand 13 states and 737 transitions. [2021-03-25 09:40:05,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 823 places, 894 transitions, 29928 flow [2021-03-25 09:40:08,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 807 places, 894 transitions, 29752 flow, removed 6 selfloop flow, removed 16 redundant places. [2021-03-25 09:40:08,770 INFO L241 Difference]: Finished difference. Result has 812 places, 875 transitions, 27466 flow [2021-03-25 09:40:08,770 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=25297, PETRI_DIFFERENCE_MINUEND_PLACES=795, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=854, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=162, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=686, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=27466, PETRI_PLACES=812, PETRI_TRANSITIONS=875} [2021-03-25 09:40:08,770 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 751 predicate places. [2021-03-25 09:40:08,770 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:40:08,770 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 812 places, 875 transitions, 27466 flow [2021-03-25 09:40:08,770 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 812 places, 875 transitions, 27466 flow [2021-03-25 09:40:08,781 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 812 places, 875 transitions, 27466 flow [2021-03-25 09:40:09,454 INFO L129 PetriNetUnfolder]: 826/2087 cut-off events. [2021-03-25 09:40:09,454 INFO L130 PetriNetUnfolder]: For 244918/244926 co-relation queries the response was YES. [2021-03-25 09:40:09,507 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27419 conditions, 2087 events. 826/2087 cut-off events. For 244918/244926 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 17155 event pairs, 22 based on Foata normal form. 6/1775 useless extension candidates. Maximal degree in co-relation 27059. Up to 391 conditions per place. [2021-03-25 09:40:09,553 INFO L142 LiptonReduction]: Number of co-enabled transitions 3688 [2021-03-25 09:40:09,651 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:40:09,651 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:40:09,651 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 881 [2021-03-25 09:40:09,651 INFO L480 AbstractCegarLoop]: Abstraction has has 812 places, 875 transitions, 27466 flow [2021-03-25 09:40:09,651 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:09,651 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:40:09,651 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:40:09,651 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable294 [2021-03-25 09:40:09,652 INFO L428 AbstractCegarLoop]: === Iteration 296 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:40:09,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:40:09,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1596876431, now seen corresponding path program 4 times [2021-03-25 09:40:09,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:40:09,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75630655] [2021-03-25 09:40:09,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:40:09,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:40:09,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:09,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:40:09,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:09,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:40:09,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:09,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:09,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:09,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:40:09,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:09,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:09,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:09,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:09,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:09,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:09,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:09,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:09,703 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 09:40:09,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:40:09,714 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:40:09,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:40:09,726 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:40:09,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:09,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:40:09,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75630655] [2021-03-25 09:40:09,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:40:09,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:40:09,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379794035] [2021-03-25 09:40:09,728 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:40:09,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:40:09,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:40:09,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:40:09,729 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 177 [2021-03-25 09:40:09,729 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 812 places, 875 transitions, 27466 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:09,729 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:40:09,729 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 177 [2021-03-25 09:40:09,729 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:40:11,324 INFO L129 PetriNetUnfolder]: 883/2196 cut-off events. [2021-03-25 09:40:11,324 INFO L130 PetriNetUnfolder]: For 245047/245053 co-relation queries the response was YES. [2021-03-25 09:40:11,391 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29778 conditions, 2196 events. 883/2196 cut-off events. For 245047/245053 co-relation queries the response was YES. Maximal size of possible extension queue 213. Compared 17668 event pairs, 16 based on Foata normal form. 7/1865 useless extension candidates. Maximal degree in co-relation 29407. Up to 1167 conditions per place. [2021-03-25 09:40:11,403 INFO L132 encePairwiseOnDemand]: 159/177 looper letters, 776 selfloop transitions, 93 changer transitions 4/891 dead transitions. [2021-03-25 09:40:11,403 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 824 places, 891 transitions, 30198 flow [2021-03-25 09:40:11,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:40:11,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:40:11,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 716 transitions. [2021-03-25 09:40:11,405 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3111690569317688 [2021-03-25 09:40:11,405 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 716 transitions. [2021-03-25 09:40:11,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 716 transitions. [2021-03-25 09:40:11,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:40:11,405 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 716 transitions. [2021-03-25 09:40:11,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 55.07692307692308) internal successors, (716), 13 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:11,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 177.0) internal successors, (2478), 14 states have internal predecessors, (2478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:11,407 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 177.0) internal successors, (2478), 14 states have internal predecessors, (2478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:11,407 INFO L185 Difference]: Start difference. First operand has 812 places, 875 transitions, 27466 flow. Second operand 13 states and 716 transitions. [2021-03-25 09:40:11,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 824 places, 891 transitions, 30198 flow [2021-03-25 09:40:14,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 822 places, 891 transitions, 29263 flow, removed 448 selfloop flow, removed 2 redundant places. [2021-03-25 09:40:14,261 INFO L241 Difference]: Finished difference. Result has 827 places, 880 transitions, 27334 flow [2021-03-25 09:40:14,262 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=26531, PETRI_DIFFERENCE_MINUEND_PLACES=810, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=875, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=784, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=27334, PETRI_PLACES=827, PETRI_TRANSITIONS=880} [2021-03-25 09:40:14,262 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 766 predicate places. [2021-03-25 09:40:14,262 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:40:14,262 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 827 places, 880 transitions, 27334 flow [2021-03-25 09:40:14,262 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 827 places, 880 transitions, 27334 flow [2021-03-25 09:40:14,271 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 827 places, 880 transitions, 27334 flow [2021-03-25 09:40:14,886 INFO L129 PetriNetUnfolder]: 824/2087 cut-off events. [2021-03-25 09:40:14,887 INFO L130 PetriNetUnfolder]: For 244173/244182 co-relation queries the response was YES. [2021-03-25 09:40:14,942 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27395 conditions, 2087 events. 824/2087 cut-off events. For 244173/244182 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 17151 event pairs, 13 based on Foata normal form. 1/1771 useless extension candidates. Maximal degree in co-relation 27030. Up to 382 conditions per place. [2021-03-25 09:40:14,986 INFO L142 LiptonReduction]: Number of co-enabled transitions 3720 [2021-03-25 09:40:15,079 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:40:15,080 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:40:15,080 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 818 [2021-03-25 09:40:15,080 INFO L480 AbstractCegarLoop]: Abstraction has has 827 places, 880 transitions, 27334 flow [2021-03-25 09:40:15,080 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:15,080 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:40:15,080 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:40:15,080 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295 [2021-03-25 09:40:15,080 INFO L428 AbstractCegarLoop]: === Iteration 297 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:40:15,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:40:15,080 INFO L82 PathProgramCache]: Analyzing trace with hash 142222581, now seen corresponding path program 10 times [2021-03-25 09:40:15,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:40:15,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841638105] [2021-03-25 09:40:15,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:40:15,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:40:15,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:15,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:40:15,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:15,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:40:15,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:15,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:40:15,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:15,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:15,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:15,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:40:15,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:15,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:40:15,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:15,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:15,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:15,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:15,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:15,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:40:15,175 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:40:15,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:40:15,190 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:40:15,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:15,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:40:15,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841638105] [2021-03-25 09:40:15,193 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:40:15,193 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:40:15,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068580210] [2021-03-25 09:40:15,193 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:40:15,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:40:15,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:40:15,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:40:15,194 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 177 [2021-03-25 09:40:15,194 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 827 places, 880 transitions, 27334 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:15,194 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:40:15,194 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 177 [2021-03-25 09:40:15,194 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:40:16,860 INFO L129 PetriNetUnfolder]: 877/2177 cut-off events. [2021-03-25 09:40:16,860 INFO L130 PetriNetUnfolder]: For 237614/237616 co-relation queries the response was YES. [2021-03-25 09:40:16,917 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29365 conditions, 2177 events. 877/2177 cut-off events. For 237614/237616 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 17587 event pairs, 21 based on Foata normal form. 3/1846 useless extension candidates. Maximal degree in co-relation 28989. Up to 1167 conditions per place. [2021-03-25 09:40:16,929 INFO L132 encePairwiseOnDemand]: 161/177 looper letters, 810 selfloop transitions, 61 changer transitions 6/895 dead transitions. [2021-03-25 09:40:16,929 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 843 places, 895 transitions, 29231 flow [2021-03-25 09:40:16,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-25 09:40:16,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-25 09:40:16,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 918 transitions. [2021-03-25 09:40:16,930 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3050847457627119 [2021-03-25 09:40:16,931 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 918 transitions. [2021-03-25 09:40:16,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 918 transitions. [2021-03-25 09:40:16,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:40:16,931 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 918 transitions. [2021-03-25 09:40:16,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 54.0) internal successors, (918), 17 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:16,932 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 177.0) internal successors, (3186), 18 states have internal predecessors, (3186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:16,932 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 177.0) internal successors, (3186), 18 states have internal predecessors, (3186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:16,932 INFO L185 Difference]: Start difference. First operand has 827 places, 880 transitions, 27334 flow. Second operand 17 states and 918 transitions. [2021-03-25 09:40:16,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 843 places, 895 transitions, 29231 flow [2021-03-25 09:40:19,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 837 places, 895 transitions, 28553 flow, removed 302 selfloop flow, removed 6 redundant places. [2021-03-25 09:40:19,514 INFO L241 Difference]: Finished difference. Result has 839 places, 875 transitions, 26672 flow [2021-03-25 09:40:19,514 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=26656, PETRI_DIFFERENCE_MINUEND_PLACES=821, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=880, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=819, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=26672, PETRI_PLACES=839, PETRI_TRANSITIONS=875} [2021-03-25 09:40:19,514 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 778 predicate places. [2021-03-25 09:40:19,514 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:40:19,515 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 839 places, 875 transitions, 26672 flow [2021-03-25 09:40:19,515 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 839 places, 875 transitions, 26672 flow [2021-03-25 09:40:19,523 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 837 places, 875 transitions, 26672 flow [2021-03-25 09:40:20,206 INFO L129 PetriNetUnfolder]: 832/2102 cut-off events. [2021-03-25 09:40:20,206 INFO L130 PetriNetUnfolder]: For 232348/232350 co-relation queries the response was YES. [2021-03-25 09:40:20,257 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27143 conditions, 2102 events. 832/2102 cut-off events. For 232348/232350 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 17230 event pairs, 16 based on Foata normal form. 0/1777 useless extension candidates. Maximal degree in co-relation 26777. Up to 374 conditions per place. [2021-03-25 09:40:20,300 INFO L142 LiptonReduction]: Number of co-enabled transitions 3684 [2021-03-25 09:40:20,382 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:40:20,382 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:40:20,382 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 868 [2021-03-25 09:40:20,382 INFO L480 AbstractCegarLoop]: Abstraction has has 837 places, 875 transitions, 26672 flow [2021-03-25 09:40:20,382 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:20,382 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:40:20,382 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:40:20,383 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable296 [2021-03-25 09:40:20,383 INFO L428 AbstractCegarLoop]: === Iteration 298 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:40:20,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:40:20,383 INFO L82 PathProgramCache]: Analyzing trace with hash -912715079, now seen corresponding path program 16 times [2021-03-25 09:40:20,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:40:20,383 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391236790] [2021-03-25 09:40:20,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:40:20,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:40:20,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:20,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:40:20,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:20,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:40:20,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:20,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:20,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:20,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:40:20,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:20,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:40:20,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:20,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:40:20,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:20,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:20,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:20,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:20,465 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 09:40:20,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:40:20,479 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:40:20,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:40:20,494 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:40:20,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:20,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:40:20,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391236790] [2021-03-25 09:40:20,496 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:40:20,496 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:40:20,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248834460] [2021-03-25 09:40:20,496 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:40:20,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:40:20,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:40:20,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:40:20,497 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 177 [2021-03-25 09:40:20,497 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 837 places, 875 transitions, 26672 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:20,497 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:40:20,497 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 177 [2021-03-25 09:40:20,497 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:40:21,919 INFO L129 PetriNetUnfolder]: 874/2174 cut-off events. [2021-03-25 09:40:21,919 INFO L130 PetriNetUnfolder]: For 230325/230338 co-relation queries the response was YES. [2021-03-25 09:40:21,974 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28998 conditions, 2174 events. 874/2174 cut-off events. For 230325/230338 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 17490 event pairs, 18 based on Foata normal form. 12/1854 useless extension candidates. Maximal degree in co-relation 28621. Up to 1188 conditions per place. [2021-03-25 09:40:21,985 INFO L132 encePairwiseOnDemand]: 159/177 looper letters, 822 selfloop transitions, 39 changer transitions 3/882 dead transitions. [2021-03-25 09:40:21,985 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 850 places, 882 transitions, 28513 flow [2021-03-25 09:40:21,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:40:21,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:40:21,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 746 transitions. [2021-03-25 09:40:21,987 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.30104923325262306 [2021-03-25 09:40:21,987 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 746 transitions. [2021-03-25 09:40:21,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 746 transitions. [2021-03-25 09:40:21,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:40:21,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 746 transitions. [2021-03-25 09:40:21,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 53.285714285714285) internal successors, (746), 14 states have internal predecessors, (746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:21,988 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 177.0) internal successors, (2655), 15 states have internal predecessors, (2655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:21,988 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 177.0) internal successors, (2655), 15 states have internal predecessors, (2655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:21,988 INFO L185 Difference]: Start difference. First operand has 837 places, 875 transitions, 26672 flow. Second operand 14 states and 746 transitions. [2021-03-25 09:40:21,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 850 places, 882 transitions, 28513 flow [2021-03-25 09:40:24,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 828 places, 882 transitions, 28278 flow, removed 11 selfloop flow, removed 22 redundant places. [2021-03-25 09:40:24,482 INFO L241 Difference]: Finished difference. Result has 830 places, 873 transitions, 26475 flow [2021-03-25 09:40:24,483 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=26437, PETRI_DIFFERENCE_MINUEND_PLACES=815, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=875, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=836, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=26475, PETRI_PLACES=830, PETRI_TRANSITIONS=873} [2021-03-25 09:40:24,483 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 769 predicate places. [2021-03-25 09:40:24,483 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:40:24,483 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 830 places, 873 transitions, 26475 flow [2021-03-25 09:40:24,483 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 830 places, 873 transitions, 26475 flow [2021-03-25 09:40:24,492 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 829 places, 873 transitions, 26475 flow [2021-03-25 09:40:25,113 INFO L129 PetriNetUnfolder]: 823/2078 cut-off events. [2021-03-25 09:40:25,113 INFO L130 PetriNetUnfolder]: For 227886/227892 co-relation queries the response was YES. [2021-03-25 09:40:25,168 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26855 conditions, 2078 events. 823/2078 cut-off events. For 227886/227892 co-relation queries the response was YES. Maximal size of possible extension queue 212. Compared 17093 event pairs, 22 based on Foata normal form. 4/1764 useless extension candidates. Maximal degree in co-relation 26492. Up to 371 conditions per place. [2021-03-25 09:40:25,215 INFO L142 LiptonReduction]: Number of co-enabled transitions 3684 [2021-03-25 09:40:25,301 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:40:25,301 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:40:25,301 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 818 [2021-03-25 09:40:25,302 INFO L480 AbstractCegarLoop]: Abstraction has has 829 places, 873 transitions, 26475 flow [2021-03-25 09:40:25,302 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:25,302 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:40:25,302 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:40:25,302 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable297 [2021-03-25 09:40:25,302 INFO L428 AbstractCegarLoop]: === Iteration 299 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:40:25,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:40:25,302 INFO L82 PathProgramCache]: Analyzing trace with hash 561413979, now seen corresponding path program 13 times [2021-03-25 09:40:25,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:40:25,302 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279471112] [2021-03-25 09:40:25,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:40:25,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:40:25,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:25,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:40:25,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:25,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:40:25,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:25,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:25,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:25,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:40:25,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:25,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:40:25,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:25,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:25,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:25,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:25,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:25,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:40:25,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:25,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:40:25,400 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:40:25,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:40:25,417 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:40:25,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:25,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:40:25,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279471112] [2021-03-25 09:40:25,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:40:25,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:40:25,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955957210] [2021-03-25 09:40:25,419 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:40:25,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:40:25,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:40:25,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:40:25,420 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 177 [2021-03-25 09:40:25,420 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 829 places, 873 transitions, 26475 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:25,420 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:40:25,420 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 177 [2021-03-25 09:40:25,420 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:40:26,929 INFO L129 PetriNetUnfolder]: 876/2176 cut-off events. [2021-03-25 09:40:26,929 INFO L130 PetriNetUnfolder]: For 236611/236617 co-relation queries the response was YES. [2021-03-25 09:40:26,984 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29277 conditions, 2176 events. 876/2176 cut-off events. For 236611/236617 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 17458 event pairs, 17 based on Foata normal form. 7/1851 useless extension candidates. Maximal degree in co-relation 28903. Up to 1150 conditions per place. [2021-03-25 09:40:26,996 INFO L132 encePairwiseOnDemand]: 160/177 looper letters, 794 selfloop transitions, 77 changer transitions 0/889 dead transitions. [2021-03-25 09:40:26,996 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 842 places, 889 transitions, 29285 flow [2021-03-25 09:40:26,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:40:26,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:40:26,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 758 transitions. [2021-03-25 09:40:26,997 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3058918482647296 [2021-03-25 09:40:26,997 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 758 transitions. [2021-03-25 09:40:26,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 758 transitions. [2021-03-25 09:40:26,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:40:26,998 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 758 transitions. [2021-03-25 09:40:26,998 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 54.142857142857146) internal successors, (758), 14 states have internal predecessors, (758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:26,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 177.0) internal successors, (2655), 15 states have internal predecessors, (2655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:26,999 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 177.0) internal successors, (2655), 15 states have internal predecessors, (2655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:26,999 INFO L185 Difference]: Start difference. First operand has 829 places, 873 transitions, 26475 flow. Second operand 14 states and 758 transitions. [2021-03-25 09:40:26,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 842 places, 889 transitions, 29285 flow [2021-03-25 09:40:29,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 824 places, 889 transitions, 29050 flow, removed 2 selfloop flow, removed 18 redundant places. [2021-03-25 09:40:29,521 INFO L241 Difference]: Finished difference. Result has 826 places, 880 transitions, 27277 flow [2021-03-25 09:40:29,522 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=26240, PETRI_DIFFERENCE_MINUEND_PLACES=811, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=873, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=800, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=27277, PETRI_PLACES=826, PETRI_TRANSITIONS=880} [2021-03-25 09:40:29,522 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 765 predicate places. [2021-03-25 09:40:29,522 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:40:29,522 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 826 places, 880 transitions, 27277 flow [2021-03-25 09:40:29,522 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 826 places, 880 transitions, 27277 flow [2021-03-25 09:40:29,530 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 826 places, 880 transitions, 27277 flow [2021-03-25 09:40:30,135 INFO L129 PetriNetUnfolder]: 833/2107 cut-off events. [2021-03-25 09:40:30,135 INFO L130 PetriNetUnfolder]: For 241573/241580 co-relation queries the response was YES. [2021-03-25 09:40:30,186 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27305 conditions, 2107 events. 833/2107 cut-off events. For 241573/241580 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 17450 event pairs, 24 based on Foata normal form. 3/1783 useless extension candidates. Maximal degree in co-relation 26942. Up to 378 conditions per place. [2021-03-25 09:40:30,229 INFO L142 LiptonReduction]: Number of co-enabled transitions 3730 [2021-03-25 09:40:30,457 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 09:40:30,457 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:40:30,458 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 936 [2021-03-25 09:40:30,458 INFO L480 AbstractCegarLoop]: Abstraction has has 826 places, 880 transitions, 27386 flow [2021-03-25 09:40:30,458 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:30,458 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:40:30,458 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:40:30,458 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable298 [2021-03-25 09:40:30,458 INFO L428 AbstractCegarLoop]: === Iteration 300 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:40:30,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:40:30,458 INFO L82 PathProgramCache]: Analyzing trace with hash 424616615, now seen corresponding path program 11 times [2021-03-25 09:40:30,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:40:30,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096020680] [2021-03-25 09:40:30,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:40:30,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:40:30,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:30,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:40:30,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:30,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:40:30,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:30,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:40:30,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:30,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:30,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:30,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:40:30,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:30,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:40:30,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:30,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:40:30,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:30,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:30,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:30,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:40:30,543 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:40:30,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:40:30,557 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:40:30,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:30,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:40:30,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096020680] [2021-03-25 09:40:30,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:40:30,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:40:30,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252730817] [2021-03-25 09:40:30,560 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:40:30,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:40:30,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:40:30,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:40:30,560 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 178 [2021-03-25 09:40:30,560 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 826 places, 880 transitions, 27386 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:30,561 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:40:30,561 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 178 [2021-03-25 09:40:30,561 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:40:32,162 INFO L129 PetriNetUnfolder]: 893/2232 cut-off events. [2021-03-25 09:40:32,162 INFO L130 PetriNetUnfolder]: For 251912/251923 co-relation queries the response was YES. [2021-03-25 09:40:32,207 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29905 conditions, 2232 events. 893/2232 cut-off events. For 251912/251923 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 18197 event pairs, 21 based on Foata normal form. 12/1898 useless extension candidates. Maximal degree in co-relation 29531. Up to 1178 conditions per place. [2021-03-25 09:40:32,218 INFO L132 encePairwiseOnDemand]: 163/178 looper letters, 820 selfloop transitions, 68 changer transitions 0/906 dead transitions. [2021-03-25 09:40:32,219 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 840 places, 906 transitions, 30046 flow [2021-03-25 09:40:32,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 09:40:32,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 09:40:32,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 815 transitions. [2021-03-25 09:40:32,220 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3052434456928839 [2021-03-25 09:40:32,220 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 815 transitions. [2021-03-25 09:40:32,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 815 transitions. [2021-03-25 09:40:32,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:40:32,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 815 transitions. [2021-03-25 09:40:32,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 54.333333333333336) internal successors, (815), 15 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:32,222 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 178.0) internal successors, (2848), 16 states have internal predecessors, (2848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:32,222 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 178.0) internal successors, (2848), 16 states have internal predecessors, (2848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:32,222 INFO L185 Difference]: Start difference. First operand has 826 places, 880 transitions, 27386 flow. Second operand 15 states and 815 transitions. [2021-03-25 09:40:32,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 840 places, 906 transitions, 30046 flow [2021-03-25 09:40:34,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 833 places, 906 transitions, 29057 flow, removed 445 selfloop flow, removed 7 redundant places. [2021-03-25 09:40:34,633 INFO L241 Difference]: Finished difference. Result has 838 places, 891 transitions, 27189 flow [2021-03-25 09:40:34,633 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=26397, PETRI_DIFFERENCE_MINUEND_PLACES=819, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=880, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=813, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=27189, PETRI_PLACES=838, PETRI_TRANSITIONS=891} [2021-03-25 09:40:34,633 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 777 predicate places. [2021-03-25 09:40:34,633 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:40:34,633 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 838 places, 891 transitions, 27189 flow [2021-03-25 09:40:34,633 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 838 places, 891 transitions, 27189 flow [2021-03-25 09:40:34,642 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 838 places, 891 transitions, 27189 flow [2021-03-25 09:40:35,289 INFO L129 PetriNetUnfolder]: 846/2154 cut-off events. [2021-03-25 09:40:35,289 INFO L130 PetriNetUnfolder]: For 245897/245904 co-relation queries the response was YES. [2021-03-25 09:40:35,344 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27507 conditions, 2154 events. 846/2154 cut-off events. For 245897/245904 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 17956 event pairs, 20 based on Foata normal form. 3/1820 useless extension candidates. Maximal degree in co-relation 27138. Up to 378 conditions per place. [2021-03-25 09:40:35,392 INFO L142 LiptonReduction]: Number of co-enabled transitions 3832 [2021-03-25 09:40:35,488 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:40:35,488 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:40:35,488 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 855 [2021-03-25 09:40:35,488 INFO L480 AbstractCegarLoop]: Abstraction has has 838 places, 891 transitions, 27189 flow [2021-03-25 09:40:35,488 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:35,488 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:40:35,488 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:40:35,488 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable299 [2021-03-25 09:40:35,488 INFO L428 AbstractCegarLoop]: === Iteration 301 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:40:35,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:40:35,489 INFO L82 PathProgramCache]: Analyzing trace with hash -132799993, now seen corresponding path program 17 times [2021-03-25 09:40:35,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:40:35,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975000489] [2021-03-25 09:40:35,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:40:35,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:40:35,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:35,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:40:35,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:35,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:40:35,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:35,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:35,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:35,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:40:35,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:35,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:40:35,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:35,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:40:35,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:35,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:35,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:35,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:35,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:35,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:40:35,615 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:40:35,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:40:35,623 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:40:35,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:35,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:40:35,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975000489] [2021-03-25 09:40:35,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:40:35,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:40:35,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364950575] [2021-03-25 09:40:35,625 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:40:35,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:40:35,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:40:35,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:40:35,626 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 178 [2021-03-25 09:40:35,626 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 838 places, 891 transitions, 27189 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:35,626 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:40:35,626 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 178 [2021-03-25 09:40:35,626 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:40:37,044 INFO L129 PetriNetUnfolder]: 895/2243 cut-off events. [2021-03-25 09:40:37,045 INFO L130 PetriNetUnfolder]: For 240437/240441 co-relation queries the response was YES. [2021-03-25 09:40:37,106 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29600 conditions, 2243 events. 895/2243 cut-off events. For 240437/240441 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 18338 event pairs, 22 based on Foata normal form. 5/1899 useless extension candidates. Maximal degree in co-relation 29220. Up to 1216 conditions per place. [2021-03-25 09:40:37,118 INFO L132 encePairwiseOnDemand]: 161/178 looper letters, 845 selfloop transitions, 34 changer transitions 0/897 dead transitions. [2021-03-25 09:40:37,118 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 849 places, 897 transitions, 29028 flow [2021-03-25 09:40:37,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:40:37,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:40:37,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 643 transitions. [2021-03-25 09:40:37,119 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.30102996254681647 [2021-03-25 09:40:37,119 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 643 transitions. [2021-03-25 09:40:37,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 643 transitions. [2021-03-25 09:40:37,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:40:37,119 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 643 transitions. [2021-03-25 09:40:37,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 53.583333333333336) internal successors, (643), 12 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:37,120 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 178.0) internal successors, (2314), 13 states have internal predecessors, (2314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:37,121 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 178.0) internal successors, (2314), 13 states have internal predecessors, (2314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:37,121 INFO L185 Difference]: Start difference. First operand has 838 places, 891 transitions, 27189 flow. Second operand 12 states and 643 transitions. [2021-03-25 09:40:37,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 849 places, 897 transitions, 29028 flow [2021-03-25 09:40:39,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 841 places, 897 transitions, 28736 flow, removed 127 selfloop flow, removed 8 redundant places. [2021-03-25 09:40:39,859 INFO L241 Difference]: Finished difference. Result has 843 places, 892 transitions, 27013 flow [2021-03-25 09:40:39,859 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=26897, PETRI_DIFFERENCE_MINUEND_PLACES=830, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=891, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=857, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=27013, PETRI_PLACES=843, PETRI_TRANSITIONS=892} [2021-03-25 09:40:39,859 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 782 predicate places. [2021-03-25 09:40:39,859 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:40:39,859 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 843 places, 892 transitions, 27013 flow [2021-03-25 09:40:39,859 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 843 places, 892 transitions, 27013 flow [2021-03-25 09:40:39,868 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 843 places, 892 transitions, 27013 flow [2021-03-25 09:40:40,506 INFO L129 PetriNetUnfolder]: 844/2154 cut-off events. [2021-03-25 09:40:40,506 INFO L130 PetriNetUnfolder]: For 240984/240991 co-relation queries the response was YES. [2021-03-25 09:40:40,561 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27329 conditions, 2154 events. 844/2154 cut-off events. For 240984/240991 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 17954 event pairs, 24 based on Foata normal form. 3/1819 useless extension candidates. Maximal degree in co-relation 26957. Up to 377 conditions per place. [2021-03-25 09:40:40,608 INFO L142 LiptonReduction]: Number of co-enabled transitions 3846 [2021-03-25 09:40:40,701 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:40:40,701 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:40:40,701 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 842 [2021-03-25 09:40:40,702 INFO L480 AbstractCegarLoop]: Abstraction has has 843 places, 892 transitions, 27013 flow [2021-03-25 09:40:40,702 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:40,702 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:40:40,702 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:40:40,702 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable300 [2021-03-25 09:40:40,702 INFO L428 AbstractCegarLoop]: === Iteration 302 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:40:40,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:40:40,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1155050751, now seen corresponding path program 5 times [2021-03-25 09:40:40,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:40:40,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60774310] [2021-03-25 09:40:40,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:40:40,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:40:40,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:40,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:40:40,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:40,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:40:40,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:40,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:40,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:40,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:40:40,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:40,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:40,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:40,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:40:40,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:40,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:40,749 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 09:40:40,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:40:40,752 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 09:40:40,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:40:40,764 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:40:40,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:40:40,776 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:40:40,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:40,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:40:40,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60774310] [2021-03-25 09:40:40,778 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:40:40,778 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:40:40,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953717886] [2021-03-25 09:40:40,778 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:40:40,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:40:40,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:40:40,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:40:40,779 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 178 [2021-03-25 09:40:40,779 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 843 places, 892 transitions, 27013 flow. Second operand has 9 states, 9 states have (on average 49.44444444444444) internal successors, (445), 9 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:40,779 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:40:40,779 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 178 [2021-03-25 09:40:40,779 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:40:42,195 INFO L129 PetriNetUnfolder]: 897/2256 cut-off events. [2021-03-25 09:40:42,195 INFO L130 PetriNetUnfolder]: For 240398/240411 co-relation queries the response was YES. [2021-03-25 09:40:42,253 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29694 conditions, 2256 events. 897/2256 cut-off events. For 240398/240411 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 18509 event pairs, 22 based on Foata normal form. 14/1919 useless extension candidates. Maximal degree in co-relation 29311. Up to 1178 conditions per place. [2021-03-25 09:40:42,264 INFO L132 encePairwiseOnDemand]: 157/178 looper letters, 793 selfloop transitions, 93 changer transitions 0/904 dead transitions. [2021-03-25 09:40:42,264 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 852 places, 904 transitions, 29330 flow [2021-03-25 09:40:42,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:40:42,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:40:42,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 574 transitions. [2021-03-25 09:40:42,265 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32247191011235954 [2021-03-25 09:40:42,266 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 574 transitions. [2021-03-25 09:40:42,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 574 transitions. [2021-03-25 09:40:42,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:40:42,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 574 transitions. [2021-03-25 09:40:42,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 57.4) internal successors, (574), 10 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:42,267 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 178.0) internal successors, (1958), 11 states have internal predecessors, (1958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:42,267 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 178.0) internal successors, (1958), 11 states have internal predecessors, (1958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:42,267 INFO L185 Difference]: Start difference. First operand has 843 places, 892 transitions, 27013 flow. Second operand 10 states and 574 transitions. [2021-03-25 09:40:42,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 852 places, 904 transitions, 29330 flow [2021-03-25 09:40:44,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 841 places, 904 transitions, 29192 flow, removed 26 selfloop flow, removed 11 redundant places. [2021-03-25 09:40:44,877 INFO L241 Difference]: Finished difference. Result has 844 places, 897 transitions, 27624 flow [2021-03-25 09:40:44,877 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=26875, PETRI_DIFFERENCE_MINUEND_PLACES=832, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=892, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=801, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=27624, PETRI_PLACES=844, PETRI_TRANSITIONS=897} [2021-03-25 09:40:44,877 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 783 predicate places. [2021-03-25 09:40:44,877 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:40:44,877 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 844 places, 897 transitions, 27624 flow [2021-03-25 09:40:44,878 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 844 places, 897 transitions, 27624 flow [2021-03-25 09:40:44,886 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 844 places, 897 transitions, 27624 flow [2021-03-25 09:40:45,616 INFO L129 PetriNetUnfolder]: 856/2196 cut-off events. [2021-03-25 09:40:45,617 INFO L130 PetriNetUnfolder]: For 244457/244459 co-relation queries the response was YES. [2021-03-25 09:40:45,665 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28013 conditions, 2196 events. 856/2196 cut-off events. For 244457/244459 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 18464 event pairs, 20 based on Foata normal form. 0/1850 useless extension candidates. Maximal degree in co-relation 27638. Up to 383 conditions per place. [2021-03-25 09:40:45,709 INFO L142 LiptonReduction]: Number of co-enabled transitions 3874 [2021-03-25 09:40:45,796 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:40:45,796 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:40:45,796 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 919 [2021-03-25 09:40:45,796 INFO L480 AbstractCegarLoop]: Abstraction has has 844 places, 897 transitions, 27624 flow [2021-03-25 09:40:45,796 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 49.44444444444444) internal successors, (445), 9 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:45,797 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:40:45,797 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:40:45,797 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable301 [2021-03-25 09:40:45,797 INFO L428 AbstractCegarLoop]: === Iteration 303 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:40:45,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:40:45,797 INFO L82 PathProgramCache]: Analyzing trace with hash -869227469, now seen corresponding path program 6 times [2021-03-25 09:40:45,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:40:45,797 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997339516] [2021-03-25 09:40:45,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:40:45,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:40:45,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:45,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:40:45,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:45,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:40:45,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:45,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:45,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:45,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:40:45,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:45,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:45,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:45,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:40:45,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:45,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:45,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:45,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:40:45,855 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:40:45,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:40:45,867 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:40:45,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:40:45,880 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:40:45,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:45,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:40:45,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997339516] [2021-03-25 09:40:45,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:40:45,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:40:45,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849831493] [2021-03-25 09:40:45,883 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:40:45,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:40:45,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:40:45,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:40:45,884 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 178 [2021-03-25 09:40:45,884 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 844 places, 897 transitions, 27624 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:45,884 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:40:45,884 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 178 [2021-03-25 09:40:45,884 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:40:47,395 INFO L129 PetriNetUnfolder]: 900/2278 cut-off events. [2021-03-25 09:40:47,395 INFO L130 PetriNetUnfolder]: For 244313/244317 co-relation queries the response was YES. [2021-03-25 09:40:47,454 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29978 conditions, 2278 events. 900/2278 cut-off events. For 244313/244317 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 18780 event pairs, 19 based on Foata normal form. 5/1930 useless extension candidates. Maximal degree in co-relation 29592. Up to 1116 conditions per place. [2021-03-25 09:40:47,466 INFO L132 encePairwiseOnDemand]: 156/178 looper letters, 757 selfloop transitions, 144 changer transitions 0/919 dead transitions. [2021-03-25 09:40:47,466 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 854 places, 919 transitions, 29872 flow [2021-03-25 09:40:47,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:40:47,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:40:47,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 631 transitions. [2021-03-25 09:40:47,467 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.322267620020429 [2021-03-25 09:40:47,467 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 631 transitions. [2021-03-25 09:40:47,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 631 transitions. [2021-03-25 09:40:47,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:40:47,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 631 transitions. [2021-03-25 09:40:47,468 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 57.36363636363637) internal successors, (631), 11 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:47,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 178.0) internal successors, (2136), 12 states have internal predecessors, (2136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:47,469 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 178.0) internal successors, (2136), 12 states have internal predecessors, (2136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:47,469 INFO L185 Difference]: Start difference. First operand has 844 places, 897 transitions, 27624 flow. Second operand 11 states and 631 transitions. [2021-03-25 09:40:47,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 854 places, 919 transitions, 29872 flow [2021-03-25 09:40:50,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 849 places, 919 transitions, 29433 flow, removed 166 selfloop flow, removed 5 redundant places. [2021-03-25 09:40:50,100 INFO L241 Difference]: Finished difference. Result has 852 places, 908 transitions, 27881 flow [2021-03-25 09:40:50,101 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=27185, PETRI_DIFFERENCE_MINUEND_PLACES=839, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=897, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=134, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=755, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=27881, PETRI_PLACES=852, PETRI_TRANSITIONS=908} [2021-03-25 09:40:50,101 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 791 predicate places. [2021-03-25 09:40:50,101 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:40:50,101 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 852 places, 908 transitions, 27881 flow [2021-03-25 09:40:50,101 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 852 places, 908 transitions, 27881 flow [2021-03-25 09:40:50,110 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 852 places, 908 transitions, 27881 flow [2021-03-25 09:40:50,762 INFO L129 PetriNetUnfolder]: 848/2190 cut-off events. [2021-03-25 09:40:50,763 INFO L130 PetriNetUnfolder]: For 251591/251671 co-relation queries the response was YES. [2021-03-25 09:40:50,818 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27904 conditions, 2190 events. 848/2190 cut-off events. For 251591/251671 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 18485 event pairs, 25 based on Foata normal form. 9/1858 useless extension candidates. Maximal degree in co-relation 27526. Up to 378 conditions per place. [2021-03-25 09:40:50,865 INFO L142 LiptonReduction]: Number of co-enabled transitions 3954 [2021-03-25 09:40:50,958 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:40:50,958 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:40:50,958 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 857 [2021-03-25 09:40:50,959 INFO L480 AbstractCegarLoop]: Abstraction has has 852 places, 908 transitions, 27881 flow [2021-03-25 09:40:50,959 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:50,959 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:40:50,959 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:40:50,959 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable302 [2021-03-25 09:40:50,959 INFO L428 AbstractCegarLoop]: === Iteration 304 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:40:50,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:40:50,959 INFO L82 PathProgramCache]: Analyzing trace with hash 306632799, now seen corresponding path program 7 times [2021-03-25 09:40:50,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:40:50,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330469245] [2021-03-25 09:40:50,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:40:50,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:40:50,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:50,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:40:50,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:50,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:40:50,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:50,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:50,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:50,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:40:50,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:50,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:50,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:50,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:51,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:51,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:51,004 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 09:40:51,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:40:51,007 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 09:40:51,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:40:51,019 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:40:51,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:40:51,032 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:40:51,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:51,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:40:51,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330469245] [2021-03-25 09:40:51,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:40:51,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:40:51,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768478153] [2021-03-25 09:40:51,034 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:40:51,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:40:51,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:40:51,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:40:51,035 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 178 [2021-03-25 09:40:51,035 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 852 places, 908 transitions, 27881 flow. Second operand has 9 states, 9 states have (on average 49.44444444444444) internal successors, (445), 9 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:51,035 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:40:51,035 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 178 [2021-03-25 09:40:51,035 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:40:52,419 INFO L129 PetriNetUnfolder]: 909/2309 cut-off events. [2021-03-25 09:40:52,419 INFO L130 PetriNetUnfolder]: For 244384/244390 co-relation queries the response was YES. [2021-03-25 09:40:52,478 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30131 conditions, 2309 events. 909/2309 cut-off events. For 244384/244390 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 19059 event pairs, 19 based on Foata normal form. 7/1953 useless extension candidates. Maximal degree in co-relation 29742. Up to 1218 conditions per place. [2021-03-25 09:40:52,489 INFO L132 encePairwiseOnDemand]: 160/178 looper letters, 830 selfloop transitions, 61 changer transitions 6/915 dead transitions. [2021-03-25 09:40:52,489 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 862 places, 915 transitions, 29795 flow [2021-03-25 09:40:52,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:40:52,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:40:52,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 612 transitions. [2021-03-25 09:40:52,491 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3125638406537283 [2021-03-25 09:40:52,491 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 612 transitions. [2021-03-25 09:40:52,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 612 transitions. [2021-03-25 09:40:52,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:40:52,491 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 612 transitions. [2021-03-25 09:40:52,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 55.63636363636363) internal successors, (612), 11 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:52,492 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 178.0) internal successors, (2136), 12 states have internal predecessors, (2136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:52,492 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 178.0) internal successors, (2136), 12 states have internal predecessors, (2136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:52,492 INFO L185 Difference]: Start difference. First operand has 852 places, 908 transitions, 27881 flow. Second operand 11 states and 612 transitions. [2021-03-25 09:40:52,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 862 places, 915 transitions, 29795 flow [2021-03-25 09:40:55,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 856 places, 915 transitions, 29499 flow, removed 60 selfloop flow, removed 6 redundant places. [2021-03-25 09:40:55,241 INFO L241 Difference]: Finished difference. Result has 858 places, 904 transitions, 27628 flow [2021-03-25 09:40:55,241 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=27585, PETRI_DIFFERENCE_MINUEND_PLACES=846, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=908, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=847, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=27628, PETRI_PLACES=858, PETRI_TRANSITIONS=904} [2021-03-25 09:40:55,241 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 797 predicate places. [2021-03-25 09:40:55,242 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:40:55,242 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 858 places, 904 transitions, 27628 flow [2021-03-25 09:40:55,242 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 858 places, 904 transitions, 27628 flow [2021-03-25 09:40:55,251 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 858 places, 904 transitions, 27628 flow [2021-03-25 09:40:55,935 INFO L129 PetriNetUnfolder]: 854/2203 cut-off events. [2021-03-25 09:40:55,935 INFO L130 PetriNetUnfolder]: For 247890/247916 co-relation queries the response was YES. [2021-03-25 09:40:55,993 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27809 conditions, 2203 events. 854/2203 cut-off events. For 247890/247916 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 18581 event pairs, 24 based on Foata normal form. 5/1859 useless extension candidates. Maximal degree in co-relation 27428. Up to 376 conditions per place. [2021-03-25 09:40:56,041 INFO L142 LiptonReduction]: Number of co-enabled transitions 3942 [2021-03-25 09:40:56,291 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:40:56,291 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:40:56,291 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1049 [2021-03-25 09:40:56,291 INFO L480 AbstractCegarLoop]: Abstraction has has 858 places, 904 transitions, 27656 flow [2021-03-25 09:40:56,291 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 49.44444444444444) internal successors, (445), 9 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:56,291 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:40:56,291 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:40:56,292 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable303 [2021-03-25 09:40:56,292 INFO L428 AbstractCegarLoop]: === Iteration 305 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:40:56,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:40:56,292 INFO L82 PathProgramCache]: Analyzing trace with hash -1774129279, now seen corresponding path program 12 times [2021-03-25 09:40:56,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:40:56,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452490963] [2021-03-25 09:40:56,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:40:56,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:40:56,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:56,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:40:56,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:56,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:40:56,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:56,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:40:56,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:56,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:56,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:56,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:40:56,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:56,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:40:56,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:56,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:40:56,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:56,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:56,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:40:56,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:40:56,386 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:40:56,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:40:56,401 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:40:56,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:40:56,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:40:56,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452490963] [2021-03-25 09:40:56,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:40:56,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:40:56,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984899181] [2021-03-25 09:40:56,404 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:40:56,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:40:56,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:40:56,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:40:56,404 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 179 [2021-03-25 09:40:56,405 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 858 places, 904 transitions, 27656 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:56,405 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:40:56,405 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 179 [2021-03-25 09:40:56,405 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:40:58,099 INFO L129 PetriNetUnfolder]: 905/2296 cut-off events. [2021-03-25 09:40:58,099 INFO L130 PetriNetUnfolder]: For 240621/240623 co-relation queries the response was YES. [2021-03-25 09:40:58,154 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30042 conditions, 2296 events. 905/2296 cut-off events. For 240621/240623 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 19018 event pairs, 23 based on Foata normal form. 3/1938 useless extension candidates. Maximal degree in co-relation 29650. Up to 1201 conditions per place. [2021-03-25 09:40:58,166 INFO L132 encePairwiseOnDemand]: 162/179 looper letters, 844 selfloop transitions, 54 changer transitions 4/920 dead transitions. [2021-03-25 09:40:58,166 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 873 places, 920 transitions, 29809 flow [2021-03-25 09:40:58,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 09:40:58,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 09:40:58,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 861 transitions. [2021-03-25 09:40:58,168 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.30062849162011174 [2021-03-25 09:40:58,168 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 861 transitions. [2021-03-25 09:40:58,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 861 transitions. [2021-03-25 09:40:58,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:40:58,168 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 861 transitions. [2021-03-25 09:40:58,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 53.8125) internal successors, (861), 16 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:58,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 179.0) internal successors, (3043), 17 states have internal predecessors, (3043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:58,170 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 179.0) internal successors, (3043), 17 states have internal predecessors, (3043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:40:58,170 INFO L185 Difference]: Start difference. First operand has 858 places, 904 transitions, 27656 flow. Second operand 16 states and 861 transitions. [2021-03-25 09:40:58,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 873 places, 920 transitions, 29809 flow [2021-03-25 09:41:01,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 859 places, 920 transitions, 29529 flow, removed 48 selfloop flow, removed 14 redundant places. [2021-03-25 09:41:01,043 INFO L241 Difference]: Finished difference. Result has 861 places, 902 transitions, 27473 flow [2021-03-25 09:41:01,044 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=27376, PETRI_DIFFERENCE_MINUEND_PLACES=844, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=904, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=850, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=27473, PETRI_PLACES=861, PETRI_TRANSITIONS=902} [2021-03-25 09:41:01,044 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 800 predicate places. [2021-03-25 09:41:01,044 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:41:01,044 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 861 places, 902 transitions, 27473 flow [2021-03-25 09:41:01,044 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 861 places, 902 transitions, 27473 flow [2021-03-25 09:41:01,053 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 859 places, 902 transitions, 27473 flow [2021-03-25 09:41:01,698 INFO L129 PetriNetUnfolder]: 839/2161 cut-off events. [2021-03-25 09:41:01,698 INFO L130 PetriNetUnfolder]: For 250067/250092 co-relation queries the response was YES. [2021-03-25 09:41:01,754 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27541 conditions, 2161 events. 839/2161 cut-off events. For 250067/250092 co-relation queries the response was YES. Maximal size of possible extension queue 212. Compared 18180 event pairs, 20 based on Foata normal form. 6/1832 useless extension candidates. Maximal degree in co-relation 27161. Up to 368 conditions per place. [2021-03-25 09:41:01,801 INFO L142 LiptonReduction]: Number of co-enabled transitions 3932 [2021-03-25 09:41:01,899 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:41:01,899 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:41:01,899 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 855 [2021-03-25 09:41:01,899 INFO L480 AbstractCegarLoop]: Abstraction has has 859 places, 902 transitions, 27473 flow [2021-03-25 09:41:01,899 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:01,899 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:41:01,899 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:41:01,899 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable304 [2021-03-25 09:41:01,899 INFO L428 AbstractCegarLoop]: === Iteration 306 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:41:01,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:41:01,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1163421540, now seen corresponding path program 1 times [2021-03-25 09:41:01,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:41:01,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291875097] [2021-03-25 09:41:01,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:41:01,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:41:01,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:01,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:41:01,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:01,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:41:01,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:01,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:41:01,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:01,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:41:01,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:01,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:41:01,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:01,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:41:01,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:01,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:41:01,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:01,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:41:01,958 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:41:01,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:41:01,962 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:41:01,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:41:01,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:41:01,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291875097] [2021-03-25 09:41:01,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:41:01,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 09:41:01,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093923563] [2021-03-25 09:41:01,965 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 09:41:01,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:41:01,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 09:41:01,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-03-25 09:41:01,965 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 179 [2021-03-25 09:41:01,965 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 859 places, 902 transitions, 27473 flow. Second operand has 8 states, 8 states have (on average 49.5) internal successors, (396), 8 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:01,965 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:41:01,965 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 179 [2021-03-25 09:41:01,965 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:41:03,367 INFO L129 PetriNetUnfolder]: 898/2280 cut-off events. [2021-03-25 09:41:03,368 INFO L130 PetriNetUnfolder]: For 248961/248967 co-relation queries the response was YES. [2021-03-25 09:41:03,428 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29978 conditions, 2280 events. 898/2280 cut-off events. For 248961/248967 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 18841 event pairs, 13 based on Foata normal form. 8/1935 useless extension candidates. Maximal degree in co-relation 29587. Up to 1165 conditions per place. [2021-03-25 09:41:03,440 INFO L132 encePairwiseOnDemand]: 161/179 looper letters, 775 selfloop transitions, 124 changer transitions 0/917 dead transitions. [2021-03-25 09:41:03,440 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 866 places, 917 transitions, 29934 flow [2021-03-25 09:41:03,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 09:41:03,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 09:41:03,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 474 transitions. [2021-03-25 09:41:03,441 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.33100558659217877 [2021-03-25 09:41:03,441 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 474 transitions. [2021-03-25 09:41:03,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 474 transitions. [2021-03-25 09:41:03,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:41:03,441 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 474 transitions. [2021-03-25 09:41:03,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 59.25) internal successors, (474), 8 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:03,442 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 179.0) internal successors, (1611), 9 states have internal predecessors, (1611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:03,442 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 179.0) internal successors, (1611), 9 states have internal predecessors, (1611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:03,442 INFO L185 Difference]: Start difference. First operand has 859 places, 902 transitions, 27473 flow. Second operand 8 states and 474 transitions. [2021-03-25 09:41:03,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 866 places, 917 transitions, 29934 flow [2021-03-25 09:41:06,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 847 places, 917 transitions, 29589 flow, removed 83 selfloop flow, removed 19 redundant places. [2021-03-25 09:41:06,231 INFO L241 Difference]: Finished difference. Result has 852 places, 908 transitions, 27777 flow [2021-03-25 09:41:06,231 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=27128, PETRI_DIFFERENCE_MINUEND_PLACES=840, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=902, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=118, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=778, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=27777, PETRI_PLACES=852, PETRI_TRANSITIONS=908} [2021-03-25 09:41:06,231 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 791 predicate places. [2021-03-25 09:41:06,231 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:41:06,232 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 852 places, 908 transitions, 27777 flow [2021-03-25 09:41:06,232 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 852 places, 908 transitions, 27777 flow [2021-03-25 09:41:06,241 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 852 places, 908 transitions, 27777 flow [2021-03-25 09:41:06,892 INFO L129 PetriNetUnfolder]: 848/2196 cut-off events. [2021-03-25 09:41:06,892 INFO L130 PetriNetUnfolder]: For 249019/249045 co-relation queries the response was YES. [2021-03-25 09:41:06,949 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27934 conditions, 2196 events. 848/2196 cut-off events. For 249019/249045 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 18565 event pairs, 23 based on Foata normal form. 5/1858 useless extension candidates. Maximal degree in co-relation 27553. Up to 369 conditions per place. [2021-03-25 09:41:06,997 INFO L142 LiptonReduction]: Number of co-enabled transitions 3986 [2021-03-25 09:41:07,096 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:41:07,097 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:41:07,097 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 866 [2021-03-25 09:41:07,097 INFO L480 AbstractCegarLoop]: Abstraction has has 852 places, 908 transitions, 27777 flow [2021-03-25 09:41:07,097 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 49.5) internal successors, (396), 8 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:07,097 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:41:07,097 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:41:07,097 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable305 [2021-03-25 09:41:07,097 INFO L428 AbstractCegarLoop]: === Iteration 307 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:41:07,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:41:07,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1384263604, now seen corresponding path program 2 times [2021-03-25 09:41:07,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:41:07,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070488470] [2021-03-25 09:41:07,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:41:07,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:41:07,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:07,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:41:07,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:07,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:41:07,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:07,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:41:07,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:07,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:41:07,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:07,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:41:07,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:07,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:41:07,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:07,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:41:07,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:07,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:41:07,155 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:41:07,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:41:07,161 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:41:07,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:41:07,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:41:07,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070488470] [2021-03-25 09:41:07,164 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:41:07,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 09:41:07,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938790525] [2021-03-25 09:41:07,164 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 09:41:07,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:41:07,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 09:41:07,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-03-25 09:41:07,164 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 179 [2021-03-25 09:41:07,165 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 852 places, 908 transitions, 27777 flow. Second operand has 8 states, 8 states have (on average 49.5) internal successors, (396), 8 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:07,165 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:41:07,165 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 179 [2021-03-25 09:41:07,165 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:41:08,521 INFO L129 PetriNetUnfolder]: 902/2293 cut-off events. [2021-03-25 09:41:08,522 INFO L130 PetriNetUnfolder]: For 246985/246998 co-relation queries the response was YES. [2021-03-25 09:41:08,581 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30249 conditions, 2293 events. 902/2293 cut-off events. For 246985/246998 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 19077 event pairs, 20 based on Foata normal form. 14/1950 useless extension candidates. Maximal degree in co-relation 29857. Up to 1215 conditions per place. [2021-03-25 09:41:08,592 INFO L132 encePairwiseOnDemand]: 161/179 looper letters, 832 selfloop transitions, 68 changer transitions 0/918 dead transitions. [2021-03-25 09:41:08,592 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 859 places, 918 transitions, 29965 flow [2021-03-25 09:41:08,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 09:41:08,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 09:41:08,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 470 transitions. [2021-03-25 09:41:08,594 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32821229050279327 [2021-03-25 09:41:08,594 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 470 transitions. [2021-03-25 09:41:08,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 470 transitions. [2021-03-25 09:41:08,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:41:08,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 470 transitions. [2021-03-25 09:41:08,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.75) internal successors, (470), 8 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:08,595 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 179.0) internal successors, (1611), 9 states have internal predecessors, (1611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:08,595 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 179.0) internal successors, (1611), 9 states have internal predecessors, (1611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:08,595 INFO L185 Difference]: Start difference. First operand has 852 places, 908 transitions, 27777 flow. Second operand 8 states and 470 transitions. [2021-03-25 09:41:08,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 859 places, 918 transitions, 29965 flow [2021-03-25 09:41:11,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 856 places, 918 transitions, 29786 flow, removed 21 selfloop flow, removed 3 redundant places. [2021-03-25 09:41:11,346 INFO L241 Difference]: Finished difference. Result has 858 places, 911 transitions, 28103 flow [2021-03-25 09:41:11,346 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=27598, PETRI_DIFFERENCE_MINUEND_PLACES=849, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=908, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=841, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=28103, PETRI_PLACES=858, PETRI_TRANSITIONS=911} [2021-03-25 09:41:11,347 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 797 predicate places. [2021-03-25 09:41:11,347 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:41:11,347 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 858 places, 911 transitions, 28103 flow [2021-03-25 09:41:11,347 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 858 places, 911 transitions, 28103 flow [2021-03-25 09:41:11,356 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 858 places, 911 transitions, 28103 flow [2021-03-25 09:41:12,062 INFO L129 PetriNetUnfolder]: 857/2226 cut-off events. [2021-03-25 09:41:12,062 INFO L130 PetriNetUnfolder]: For 249535/249537 co-relation queries the response was YES. [2021-03-25 09:41:12,118 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28386 conditions, 2226 events. 857/2226 cut-off events. For 249535/249537 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 18919 event pairs, 15 based on Foata normal form. 0/1878 useless extension candidates. Maximal degree in co-relation 28003. Up to 376 conditions per place. [2021-03-25 09:41:12,164 INFO L142 LiptonReduction]: Number of co-enabled transitions 4022 [2021-03-25 09:41:12,253 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:41:12,253 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:41:12,253 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 906 [2021-03-25 09:41:12,253 INFO L480 AbstractCegarLoop]: Abstraction has has 858 places, 911 transitions, 28103 flow [2021-03-25 09:41:12,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 49.5) internal successors, (396), 8 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:12,253 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:41:12,253 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:41:12,253 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable306 [2021-03-25 09:41:12,253 INFO L428 AbstractCegarLoop]: === Iteration 308 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:41:12,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:41:12,254 INFO L82 PathProgramCache]: Analyzing trace with hash -1228866782, now seen corresponding path program 3 times [2021-03-25 09:41:12,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:41:12,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272751119] [2021-03-25 09:41:12,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:41:12,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:41:12,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:12,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:41:12,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:12,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:41:12,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:12,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:41:12,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:12,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:41:12,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:12,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:41:12,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:12,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:41:12,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:12,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:41:12,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:12,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:41:12,312 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:41:12,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:41:12,323 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:41:12,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:41:12,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:41:12,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272751119] [2021-03-25 09:41:12,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:41:12,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:41:12,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764988851] [2021-03-25 09:41:12,326 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:41:12,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:41:12,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:41:12,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:41:12,327 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 179 [2021-03-25 09:41:12,327 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 858 places, 911 transitions, 28103 flow. Second operand has 9 states, 9 states have (on average 49.333333333333336) internal successors, (444), 9 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:12,327 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:41:12,327 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 179 [2021-03-25 09:41:12,327 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:41:13,801 INFO L129 PetriNetUnfolder]: 907/2312 cut-off events. [2021-03-25 09:41:13,801 INFO L130 PetriNetUnfolder]: For 248694/248707 co-relation queries the response was YES. [2021-03-25 09:41:13,864 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30346 conditions, 2312 events. 907/2312 cut-off events. For 248694/248707 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 19261 event pairs, 22 based on Foata normal form. 14/1963 useless extension candidates. Maximal degree in co-relation 29952. Up to 1181 conditions per place. [2021-03-25 09:41:13,876 INFO L132 encePairwiseOnDemand]: 158/179 looper letters, 793 selfloop transitions, 93 changer transitions 16/920 dead transitions. [2021-03-25 09:41:13,876 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 866 places, 920 transitions, 30103 flow [2021-03-25 09:41:13,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 09:41:13,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 09:41:13,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 528 transitions. [2021-03-25 09:41:13,877 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32774674115456237 [2021-03-25 09:41:13,877 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 528 transitions. [2021-03-25 09:41:13,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 528 transitions. [2021-03-25 09:41:13,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:41:13,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 528 transitions. [2021-03-25 09:41:13,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 58.666666666666664) internal successors, (528), 9 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:13,878 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 179.0) internal successors, (1790), 10 states have internal predecessors, (1790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:13,878 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 179.0) internal successors, (1790), 10 states have internal predecessors, (1790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:13,878 INFO L185 Difference]: Start difference. First operand has 858 places, 911 transitions, 28103 flow. Second operand 9 states and 528 transitions. [2021-03-25 09:41:13,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 866 places, 920 transitions, 30103 flow [2021-03-25 09:41:16,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 862 places, 920 transitions, 29822 flow, removed 101 selfloop flow, removed 4 redundant places. [2021-03-25 09:41:16,860 INFO L241 Difference]: Finished difference. Result has 864 places, 896 transitions, 27567 flow [2021-03-25 09:41:16,860 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=27822, PETRI_DIFFERENCE_MINUEND_PLACES=854, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=911, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=818, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=27567, PETRI_PLACES=864, PETRI_TRANSITIONS=896} [2021-03-25 09:41:16,860 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 803 predicate places. [2021-03-25 09:41:16,860 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:41:16,860 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 864 places, 896 transitions, 27567 flow [2021-03-25 09:41:16,860 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 864 places, 896 transitions, 27567 flow [2021-03-25 09:41:16,869 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 863 places, 896 transitions, 27567 flow [2021-03-25 09:41:17,543 INFO L129 PetriNetUnfolder]: 840/2160 cut-off events. [2021-03-25 09:41:17,543 INFO L130 PetriNetUnfolder]: For 248401/248426 co-relation queries the response was YES. [2021-03-25 09:41:17,698 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27871 conditions, 2160 events. 840/2160 cut-off events. For 248401/248426 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 18115 event pairs, 21 based on Foata normal form. 4/1828 useless extension candidates. Maximal degree in co-relation 27485. Up to 367 conditions per place. [2021-03-25 09:41:17,738 INFO L142 LiptonReduction]: Number of co-enabled transitions 3894 [2021-03-25 09:41:17,824 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:41:17,824 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:41:17,824 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 964 [2021-03-25 09:41:17,824 INFO L480 AbstractCegarLoop]: Abstraction has has 863 places, 896 transitions, 27567 flow [2021-03-25 09:41:17,825 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 49.333333333333336) internal successors, (444), 9 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:17,825 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:41:17,825 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:41:17,825 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable307 [2021-03-25 09:41:17,825 INFO L428 AbstractCegarLoop]: === Iteration 309 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:41:17,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:41:17,825 INFO L82 PathProgramCache]: Analyzing trace with hash 1099625875, now seen corresponding path program 8 times [2021-03-25 09:41:17,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:41:17,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613316655] [2021-03-25 09:41:17,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:41:17,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:41:17,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:17,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:41:17,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:17,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:41:17,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:17,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:41:17,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:17,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:41:17,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:17,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:41:17,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:17,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:41:17,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:17,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:41:17,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:17,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:41:17,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:17,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:41:17,897 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:41:17,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:41:17,900 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:41:17,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:41:17,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:41:17,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613316655] [2021-03-25 09:41:17,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:41:17,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:41:17,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974108245] [2021-03-25 09:41:17,903 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:41:17,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:41:17,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:41:17,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:41:17,904 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 179 [2021-03-25 09:41:17,904 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 863 places, 896 transitions, 27567 flow. Second operand has 9 states, 9 states have (on average 49.44444444444444) internal successors, (445), 9 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:17,904 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:41:17,904 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 179 [2021-03-25 09:41:17,904 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:41:19,305 INFO L129 PetriNetUnfolder]: 891/2248 cut-off events. [2021-03-25 09:41:19,305 INFO L130 PetriNetUnfolder]: For 243399/243405 co-relation queries the response was YES. [2021-03-25 09:41:19,369 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30102 conditions, 2248 events. 891/2248 cut-off events. For 243399/243405 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 18340 event pairs, 19 based on Foata normal form. 7/1907 useless extension candidates. Maximal degree in co-relation 29705. Up to 1212 conditions per place. [2021-03-25 09:41:19,380 INFO L132 encePairwiseOnDemand]: 161/179 looper letters, 834 selfloop transitions, 52 changer transitions 0/904 dead transitions. [2021-03-25 09:41:19,380 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 873 places, 904 transitions, 29614 flow [2021-03-25 09:41:19,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:41:19,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:41:19,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 608 transitions. [2021-03-25 09:41:19,382 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.30878618588115797 [2021-03-25 09:41:19,382 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 608 transitions. [2021-03-25 09:41:19,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 608 transitions. [2021-03-25 09:41:19,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:41:19,382 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 608 transitions. [2021-03-25 09:41:19,382 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 55.27272727272727) internal successors, (608), 11 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:19,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 179.0) internal successors, (2148), 12 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:19,383 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 179.0) internal successors, (2148), 12 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:19,383 INFO L185 Difference]: Start difference. First operand has 863 places, 896 transitions, 27567 flow. Second operand 11 states and 608 transitions. [2021-03-25 09:41:19,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 873 places, 904 transitions, 29614 flow [2021-03-25 09:41:22,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 850 places, 904 transitions, 29117 flow, removed 11 selfloop flow, removed 23 redundant places. [2021-03-25 09:41:22,132 INFO L241 Difference]: Finished difference. Result has 854 places, 899 transitions, 27428 flow [2021-03-25 09:41:22,132 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=27070, PETRI_DIFFERENCE_MINUEND_PLACES=840, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=896, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=844, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=27428, PETRI_PLACES=854, PETRI_TRANSITIONS=899} [2021-03-25 09:41:22,133 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 793 predicate places. [2021-03-25 09:41:22,133 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:41:22,133 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 854 places, 899 transitions, 27428 flow [2021-03-25 09:41:22,133 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 854 places, 899 transitions, 27428 flow [2021-03-25 09:41:22,142 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 854 places, 899 transitions, 27428 flow [2021-03-25 09:41:22,786 INFO L129 PetriNetUnfolder]: 834/2147 cut-off events. [2021-03-25 09:41:22,786 INFO L130 PetriNetUnfolder]: For 248085/248110 co-relation queries the response was YES. [2021-03-25 09:41:22,840 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27640 conditions, 2147 events. 834/2147 cut-off events. For 248085/248110 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 17956 event pairs, 23 based on Foata normal form. 4/1819 useless extension candidates. Maximal degree in co-relation 27258. Up to 368 conditions per place. [2021-03-25 09:41:22,886 INFO L142 LiptonReduction]: Number of co-enabled transitions 3928 [2021-03-25 09:41:22,983 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:41:22,983 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:41:22,983 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 850 [2021-03-25 09:41:22,983 INFO L480 AbstractCegarLoop]: Abstraction has has 854 places, 899 transitions, 27428 flow [2021-03-25 09:41:22,984 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 49.44444444444444) internal successors, (445), 9 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:22,984 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:41:22,984 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:41:22,984 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable308 [2021-03-25 09:41:22,984 INFO L428 AbstractCegarLoop]: === Iteration 310 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:41:22,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:41:22,984 INFO L82 PathProgramCache]: Analyzing trace with hash 2049538607, now seen corresponding path program 13 times [2021-03-25 09:41:22,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:41:22,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115097276] [2021-03-25 09:41:22,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:41:22,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:41:22,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:22,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:41:22,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:22,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:41:23,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:23,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:41:23,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:23,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:41:23,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:23,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:41:23,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:23,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:41:23,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:23,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:41:23,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:23,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:41:23,066 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:41:23,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:41:23,080 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:41:23,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:41:23,096 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:41:23,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:41:23,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:41:23,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115097276] [2021-03-25 09:41:23,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:41:23,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:41:23,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232383114] [2021-03-25 09:41:23,098 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:41:23,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:41:23,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:41:23,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:41:23,099 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 179 [2021-03-25 09:41:23,099 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 854 places, 899 transitions, 27428 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:23,099 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:41:23,099 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 179 [2021-03-25 09:41:23,099 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:41:24,612 INFO L129 PetriNetUnfolder]: 897/2272 cut-off events. [2021-03-25 09:41:24,612 INFO L130 PetriNetUnfolder]: For 241458/241462 co-relation queries the response was YES. [2021-03-25 09:41:24,668 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30049 conditions, 2272 events. 897/2272 cut-off events. For 241458/241462 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 18661 event pairs, 23 based on Foata normal form. 5/1922 useless extension candidates. Maximal degree in co-relation 29656. Up to 1193 conditions per place. [2021-03-25 09:41:24,679 INFO L132 encePairwiseOnDemand]: 164/179 looper letters, 838 selfloop transitions, 59 changer transitions 2/917 dead transitions. [2021-03-25 09:41:24,679 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 868 places, 917 transitions, 29695 flow [2021-03-25 09:41:24,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 09:41:24,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 09:41:24,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 814 transitions. [2021-03-25 09:41:24,680 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3031657355679702 [2021-03-25 09:41:24,681 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 814 transitions. [2021-03-25 09:41:24,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 814 transitions. [2021-03-25 09:41:24,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:41:24,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 814 transitions. [2021-03-25 09:41:24,681 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 54.266666666666666) internal successors, (814), 15 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:24,682 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 179.0) internal successors, (2864), 16 states have internal predecessors, (2864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:24,682 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 179.0) internal successors, (2864), 16 states have internal predecessors, (2864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:24,682 INFO L185 Difference]: Start difference. First operand has 854 places, 899 transitions, 27428 flow. Second operand 15 states and 814 transitions. [2021-03-25 09:41:24,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 868 places, 917 transitions, 29695 flow [2021-03-25 09:41:27,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 861 places, 917 transitions, 29419 flow, removed 90 selfloop flow, removed 7 redundant places. [2021-03-25 09:41:27,400 INFO L241 Difference]: Finished difference. Result has 864 places, 900 transitions, 27407 flow [2021-03-25 09:41:27,401 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=27152, PETRI_DIFFERENCE_MINUEND_PLACES=847, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=899, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=840, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=27407, PETRI_PLACES=864, PETRI_TRANSITIONS=900} [2021-03-25 09:41:27,401 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 803 predicate places. [2021-03-25 09:41:27,401 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:41:27,401 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 864 places, 900 transitions, 27407 flow [2021-03-25 09:41:27,401 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 864 places, 900 transitions, 27407 flow [2021-03-25 09:41:27,410 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 863 places, 900 transitions, 27407 flow [2021-03-25 09:41:28,055 INFO L129 PetriNetUnfolder]: 840/2168 cut-off events. [2021-03-25 09:41:28,055 INFO L130 PetriNetUnfolder]: For 248107/248133 co-relation queries the response was YES. [2021-03-25 09:41:28,114 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27798 conditions, 2168 events. 840/2168 cut-off events. For 248107/248133 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 18170 event pairs, 19 based on Foata normal form. 5/1835 useless extension candidates. Maximal degree in co-relation 27413. Up to 367 conditions per place. [2021-03-25 09:41:28,163 INFO L142 LiptonReduction]: Number of co-enabled transitions 3940 [2021-03-25 09:41:28,257 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:41:28,257 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:41:28,257 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 856 [2021-03-25 09:41:28,257 INFO L480 AbstractCegarLoop]: Abstraction has has 863 places, 900 transitions, 27407 flow [2021-03-25 09:41:28,257 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:28,257 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:41:28,258 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:41:28,258 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable309 [2021-03-25 09:41:28,258 INFO L428 AbstractCegarLoop]: === Iteration 311 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:41:28,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:41:28,258 INFO L82 PathProgramCache]: Analyzing trace with hash 387192551, now seen corresponding path program 14 times [2021-03-25 09:41:28,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:41:28,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757009442] [2021-03-25 09:41:28,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:41:28,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:41:28,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:28,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:41:28,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:28,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:41:28,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:28,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:41:28,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:28,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:41:28,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:28,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:41:28,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:28,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:41:28,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:28,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:41:28,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:28,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:41:28,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:28,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:41:28,353 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:41:28,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:41:28,369 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:41:28,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:41:28,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:41:28,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757009442] [2021-03-25 09:41:28,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:41:28,372 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:41:28,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595506467] [2021-03-25 09:41:28,372 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:41:28,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:41:28,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:41:28,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:41:28,372 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 179 [2021-03-25 09:41:28,373 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 863 places, 900 transitions, 27407 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:28,373 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:41:28,373 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 179 [2021-03-25 09:41:28,373 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:41:30,192 INFO L129 PetriNetUnfolder]: 915/2322 cut-off events. [2021-03-25 09:41:30,192 INFO L130 PetriNetUnfolder]: For 258419/258430 co-relation queries the response was YES. [2021-03-25 09:41:30,242 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30955 conditions, 2322 events. 915/2322 cut-off events. For 258419/258430 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 19191 event pairs, 23 based on Foata normal form. 11/1968 useless extension candidates. Maximal degree in co-relation 30559. Up to 1190 conditions per place. [2021-03-25 09:41:30,254 INFO L132 encePairwiseOnDemand]: 163/179 looper letters, 815 selfloop transitions, 102 changer transitions 0/935 dead transitions. [2021-03-25 09:41:30,254 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 880 places, 935 transitions, 31172 flow [2021-03-25 09:41:30,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-25 09:41:30,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-25 09:41:30,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 974 transitions. [2021-03-25 09:41:30,255 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3022967101179392 [2021-03-25 09:41:30,255 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 974 transitions. [2021-03-25 09:41:30,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 974 transitions. [2021-03-25 09:41:30,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:41:30,256 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 974 transitions. [2021-03-25 09:41:30,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 54.111111111111114) internal successors, (974), 18 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:30,257 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 179.0) internal successors, (3401), 19 states have internal predecessors, (3401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:30,257 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 179.0) internal successors, (3401), 19 states have internal predecessors, (3401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:30,257 INFO L185 Difference]: Start difference. First operand has 863 places, 900 transitions, 27407 flow. Second operand 18 states and 974 transitions. [2021-03-25 09:41:30,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 880 places, 935 transitions, 31172 flow [2021-03-25 09:41:32,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 867 places, 935 transitions, 30969 flow, removed 48 selfloop flow, removed 13 redundant places. [2021-03-25 09:41:32,912 INFO L241 Difference]: Finished difference. Result has 872 places, 923 transitions, 29344 flow [2021-03-25 09:41:32,912 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=27257, PETRI_DIFFERENCE_MINUEND_PLACES=850, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=900, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=810, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=29344, PETRI_PLACES=872, PETRI_TRANSITIONS=923} [2021-03-25 09:41:32,912 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 811 predicate places. [2021-03-25 09:41:32,912 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:41:32,912 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 872 places, 923 transitions, 29344 flow [2021-03-25 09:41:32,912 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 872 places, 923 transitions, 29344 flow [2021-03-25 09:41:32,921 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 872 places, 923 transitions, 29344 flow [2021-03-25 09:41:33,574 INFO L129 PetriNetUnfolder]: 860/2219 cut-off events. [2021-03-25 09:41:33,574 INFO L130 PetriNetUnfolder]: For 265277/265281 co-relation queries the response was YES. [2021-03-25 09:41:33,631 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28939 conditions, 2219 events. 860/2219 cut-off events. For 265277/265281 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 18747 event pairs, 16 based on Foata normal form. 0/1872 useless extension candidates. Maximal degree in co-relation 28551. Up to 386 conditions per place. [2021-03-25 09:41:33,679 INFO L142 LiptonReduction]: Number of co-enabled transitions 4096 [2021-03-25 09:41:33,779 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:41:33,779 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:41:33,779 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 867 [2021-03-25 09:41:33,779 INFO L480 AbstractCegarLoop]: Abstraction has has 872 places, 923 transitions, 29344 flow [2021-03-25 09:41:33,779 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:33,779 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:41:33,779 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:41:33,779 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable310 [2021-03-25 09:41:33,779 INFO L428 AbstractCegarLoop]: === Iteration 312 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:41:33,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:41:33,780 INFO L82 PathProgramCache]: Analyzing trace with hash 2002440889, now seen corresponding path program 15 times [2021-03-25 09:41:33,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:41:33,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095852794] [2021-03-25 09:41:33,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:41:33,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:41:33,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:33,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:41:33,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:33,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:41:33,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:33,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:41:33,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:33,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:41:33,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:33,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:41:33,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:33,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:41:33,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:33,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:41:33,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:33,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:41:33,863 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:41:33,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:41:33,878 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:41:33,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:41:33,895 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:41:33,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:41:33,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:41:33,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095852794] [2021-03-25 09:41:33,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:41:33,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:41:33,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112820450] [2021-03-25 09:41:33,898 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:41:33,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:41:33,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:41:33,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:41:33,899 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 179 [2021-03-25 09:41:33,899 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 872 places, 923 transitions, 29344 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:33,899 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:41:33,899 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 179 [2021-03-25 09:41:33,899 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:41:35,557 INFO L129 PetriNetUnfolder]: 909/2306 cut-off events. [2021-03-25 09:41:35,557 INFO L130 PetriNetUnfolder]: For 265438/265451 co-relation queries the response was YES. [2021-03-25 09:41:35,619 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31043 conditions, 2306 events. 909/2306 cut-off events. For 265438/265451 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 19085 event pairs, 14 based on Foata normal form. 14/1962 useless extension candidates. Maximal degree in co-relation 30644. Up to 1221 conditions per place. [2021-03-25 09:41:35,631 INFO L132 encePairwiseOnDemand]: 164/179 looper letters, 863 selfloop transitions, 53 changer transitions 3/937 dead transitions. [2021-03-25 09:41:35,631 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 885 places, 937 transitions, 31371 flow [2021-03-25 09:41:35,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:41:35,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:41:35,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 761 transitions. [2021-03-25 09:41:35,632 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.30367118914604946 [2021-03-25 09:41:35,633 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 761 transitions. [2021-03-25 09:41:35,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 761 transitions. [2021-03-25 09:41:35,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:41:35,633 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 761 transitions. [2021-03-25 09:41:35,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 54.357142857142854) internal successors, (761), 14 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:35,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 179.0) internal successors, (2685), 15 states have internal predecessors, (2685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:35,634 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 179.0) internal successors, (2685), 15 states have internal predecessors, (2685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:35,634 INFO L185 Difference]: Start difference. First operand has 872 places, 923 transitions, 29344 flow. Second operand 14 states and 761 transitions. [2021-03-25 09:41:35,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 885 places, 937 transitions, 31371 flow [2021-03-25 09:41:38,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 877 places, 937 transitions, 30251 flow, removed 540 selfloop flow, removed 8 redundant places. [2021-03-25 09:41:38,359 INFO L241 Difference]: Finished difference. Result has 879 places, 922 transitions, 28330 flow [2021-03-25 09:41:38,359 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=28224, PETRI_DIFFERENCE_MINUEND_PLACES=864, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=923, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=870, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=28330, PETRI_PLACES=879, PETRI_TRANSITIONS=922} [2021-03-25 09:41:38,359 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 818 predicate places. [2021-03-25 09:41:38,359 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:41:38,359 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 879 places, 922 transitions, 28330 flow [2021-03-25 09:41:38,359 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 879 places, 922 transitions, 28330 flow [2021-03-25 09:41:38,368 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 878 places, 922 transitions, 28330 flow [2021-03-25 09:41:39,041 INFO L129 PetriNetUnfolder]: 870/2246 cut-off events. [2021-03-25 09:41:39,041 INFO L130 PetriNetUnfolder]: For 248365/248415 co-relation queries the response was YES. [2021-03-25 09:41:39,099 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28581 conditions, 2246 events. 870/2246 cut-off events. For 248365/248415 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 18898 event pairs, 19 based on Foata normal form. 0/1891 useless extension candidates. Maximal degree in co-relation 28190. Up to 377 conditions per place. [2021-03-25 09:41:39,147 INFO L142 LiptonReduction]: Number of co-enabled transitions 4096 [2021-03-25 09:41:39,250 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:41:39,250 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:41:39,250 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 891 [2021-03-25 09:41:39,250 INFO L480 AbstractCegarLoop]: Abstraction has has 878 places, 922 transitions, 28330 flow [2021-03-25 09:41:39,250 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:39,250 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:41:39,250 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:41:39,250 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable311 [2021-03-25 09:41:39,250 INFO L428 AbstractCegarLoop]: === Iteration 313 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:41:39,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:41:39,251 INFO L82 PathProgramCache]: Analyzing trace with hash -25630101, now seen corresponding path program 14 times [2021-03-25 09:41:39,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:41:39,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231997874] [2021-03-25 09:41:39,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:41:39,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:41:39,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:39,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:41:39,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:39,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:41:39,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:39,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:41:39,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:39,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:41:39,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:39,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:41:39,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:39,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:41:39,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:39,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:41:39,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:39,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:41:39,331 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:41:39,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:41:39,345 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:41:39,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:41:39,361 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:41:39,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:41:39,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:41:39,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231997874] [2021-03-25 09:41:39,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:41:39,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:41:39,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285844334] [2021-03-25 09:41:39,364 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:41:39,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:41:39,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:41:39,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:41:39,364 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 179 [2021-03-25 09:41:39,365 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 878 places, 922 transitions, 28330 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:39,365 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:41:39,365 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 179 [2021-03-25 09:41:39,365 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:41:41,035 INFO L129 PetriNetUnfolder]: 908/2310 cut-off events. [2021-03-25 09:41:41,035 INFO L130 PetriNetUnfolder]: For 254792/254798 co-relation queries the response was YES. [2021-03-25 09:41:41,096 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30662 conditions, 2310 events. 908/2310 cut-off events. For 254792/254798 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 19172 event pairs, 17 based on Foata normal form. 7/1958 useless extension candidates. Maximal degree in co-relation 30260. Up to 1164 conditions per place. [2021-03-25 09:41:41,108 INFO L132 encePairwiseOnDemand]: 161/179 looper letters, 819 selfloop transitions, 88 changer transitions 11/936 dead transitions. [2021-03-25 09:41:41,108 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 890 places, 936 transitions, 30792 flow [2021-03-25 09:41:41,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:41:41,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:41:41,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 718 transitions. [2021-03-25 09:41:41,109 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3085517834121186 [2021-03-25 09:41:41,109 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 718 transitions. [2021-03-25 09:41:41,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 718 transitions. [2021-03-25 09:41:41,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:41:41,109 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 718 transitions. [2021-03-25 09:41:41,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 55.23076923076923) internal successors, (718), 13 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:41,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 179.0) internal successors, (2506), 14 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:41,111 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 179.0) internal successors, (2506), 14 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:41,111 INFO L185 Difference]: Start difference. First operand has 878 places, 922 transitions, 28330 flow. Second operand 13 states and 718 transitions. [2021-03-25 09:41:41,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 890 places, 936 transitions, 30792 flow [2021-03-25 09:41:44,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 876 places, 936 transitions, 30662 flow, removed 2 selfloop flow, removed 14 redundant places. [2021-03-25 09:41:44,112 INFO L241 Difference]: Finished difference. Result has 879 places, 914 transitions, 28366 flow [2021-03-25 09:41:44,112 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=28200, PETRI_DIFFERENCE_MINUEND_PLACES=864, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=922, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=834, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=28366, PETRI_PLACES=879, PETRI_TRANSITIONS=914} [2021-03-25 09:41:44,112 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 818 predicate places. [2021-03-25 09:41:44,112 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:41:44,112 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 879 places, 914 transitions, 28366 flow [2021-03-25 09:41:44,113 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 879 places, 914 transitions, 28366 flow [2021-03-25 09:41:44,122 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 873 places, 914 transitions, 28366 flow [2021-03-25 09:41:44,799 INFO L129 PetriNetUnfolder]: 863/2235 cut-off events. [2021-03-25 09:41:44,799 INFO L130 PetriNetUnfolder]: For 253301/253304 co-relation queries the response was YES. [2021-03-25 09:41:44,859 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28670 conditions, 2235 events. 863/2235 cut-off events. For 253301/253304 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 18906 event pairs, 17 based on Foata normal form. 1/1881 useless extension candidates. Maximal degree in co-relation 28278. Up to 377 conditions per place. [2021-03-25 09:41:44,908 INFO L142 LiptonReduction]: Number of co-enabled transitions 4068 [2021-03-25 09:41:45,010 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:41:45,010 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:41:45,010 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 898 [2021-03-25 09:41:45,010 INFO L480 AbstractCegarLoop]: Abstraction has has 873 places, 914 transitions, 28366 flow [2021-03-25 09:41:45,010 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:45,010 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:41:45,010 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:41:45,010 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable312 [2021-03-25 09:41:45,011 INFO L428 AbstractCegarLoop]: === Iteration 314 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:41:45,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:41:45,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1852137047, now seen corresponding path program 15 times [2021-03-25 09:41:45,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:41:45,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031831501] [2021-03-25 09:41:45,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:41:45,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:41:45,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:45,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:41:45,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:45,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:41:45,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:45,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:41:45,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:45,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:41:45,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:45,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:41:45,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:45,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:41:45,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:45,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:41:45,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:45,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:41:45,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:45,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:41:45,093 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:41:45,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:41:45,097 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:41:45,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:41:45,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:41:45,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031831501] [2021-03-25 09:41:45,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:41:45,099 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:41:45,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759678323] [2021-03-25 09:41:45,100 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:41:45,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:41:45,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:41:45,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:41:45,100 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 179 [2021-03-25 09:41:45,100 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 873 places, 914 transitions, 28366 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:45,100 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:41:45,101 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 179 [2021-03-25 09:41:45,101 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:41:46,580 INFO L129 PetriNetUnfolder]: 904/2295 cut-off events. [2021-03-25 09:41:46,580 INFO L130 PetriNetUnfolder]: For 255728/255732 co-relation queries the response was YES. [2021-03-25 09:41:46,641 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30730 conditions, 2295 events. 904/2295 cut-off events. For 255728/255732 co-relation queries the response was YES. Maximal size of possible extension queue 239. Compared 19014 event pairs, 23 based on Foata normal form. 5/1941 useless extension candidates. Maximal degree in co-relation 30327. Up to 1226 conditions per place. [2021-03-25 09:41:46,652 INFO L132 encePairwiseOnDemand]: 165/179 looper letters, 863 selfloop transitions, 44 changer transitions 1/926 dead transitions. [2021-03-25 09:41:46,652 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 884 places, 926 transitions, 30618 flow [2021-03-25 09:41:46,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:41:46,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:41:46,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 652 transitions. [2021-03-25 09:41:46,654 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.30353817504655495 [2021-03-25 09:41:46,654 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 652 transitions. [2021-03-25 09:41:46,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 652 transitions. [2021-03-25 09:41:46,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:41:46,654 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 652 transitions. [2021-03-25 09:41:46,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 54.333333333333336) internal successors, (652), 12 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:46,655 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 179.0) internal successors, (2327), 13 states have internal predecessors, (2327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:46,655 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 179.0) internal successors, (2327), 13 states have internal predecessors, (2327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:46,655 INFO L185 Difference]: Start difference. First operand has 873 places, 914 transitions, 28366 flow. Second operand 12 states and 652 transitions. [2021-03-25 09:41:46,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 884 places, 926 transitions, 30618 flow [2021-03-25 09:41:49,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 871 places, 926 transitions, 30375 flow, removed 38 selfloop flow, removed 13 redundant places. [2021-03-25 09:41:49,524 INFO L241 Difference]: Finished difference. Result has 874 places, 918 transitions, 28616 flow [2021-03-25 09:41:49,525 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=28127, PETRI_DIFFERENCE_MINUEND_PLACES=860, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=914, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=871, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=28616, PETRI_PLACES=874, PETRI_TRANSITIONS=918} [2021-03-25 09:41:49,525 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 813 predicate places. [2021-03-25 09:41:49,525 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:41:49,525 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 874 places, 918 transitions, 28616 flow [2021-03-25 09:41:49,525 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 874 places, 918 transitions, 28616 flow [2021-03-25 09:41:49,534 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 874 places, 918 transitions, 28616 flow [2021-03-25 09:41:50,273 INFO L129 PetriNetUnfolder]: 862/2237 cut-off events. [2021-03-25 09:41:50,273 INFO L130 PetriNetUnfolder]: For 256407/256411 co-relation queries the response was YES. [2021-03-25 09:41:50,327 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28636 conditions, 2237 events. 862/2237 cut-off events. For 256407/256411 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 18962 event pairs, 18 based on Foata normal form. 0/1881 useless extension candidates. Maximal degree in co-relation 28244. Up to 380 conditions per place. [2021-03-25 09:41:50,374 INFO L142 LiptonReduction]: Number of co-enabled transitions 4104 [2021-03-25 09:41:50,467 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:41:50,468 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:41:50,468 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 943 [2021-03-25 09:41:50,468 INFO L480 AbstractCegarLoop]: Abstraction has has 874 places, 918 transitions, 28616 flow [2021-03-25 09:41:50,468 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:50,468 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:41:50,468 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:41:50,468 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable313 [2021-03-25 09:41:50,468 INFO L428 AbstractCegarLoop]: === Iteration 315 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:41:50,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:41:50,468 INFO L82 PathProgramCache]: Analyzing trace with hash -237941339, now seen corresponding path program 9 times [2021-03-25 09:41:50,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:41:50,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094379295] [2021-03-25 09:41:50,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:41:50,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:41:50,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:50,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:41:50,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:50,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:41:50,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:50,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:41:50,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:50,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:41:50,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:50,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:41:50,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:50,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:41:50,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:50,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:41:50,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:50,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:41:50,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:50,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:41:50,538 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:41:50,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:41:50,542 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:41:50,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:41:50,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:41:50,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094379295] [2021-03-25 09:41:50,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:41:50,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:41:50,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27565483] [2021-03-25 09:41:50,545 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:41:50,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:41:50,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:41:50,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:41:50,546 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 179 [2021-03-25 09:41:50,546 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 874 places, 918 transitions, 28616 flow. Second operand has 9 states, 9 states have (on average 49.44444444444444) internal successors, (445), 9 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:50,546 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:41:50,546 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 179 [2021-03-25 09:41:50,546 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:41:51,954 INFO L129 PetriNetUnfolder]: 902/2300 cut-off events. [2021-03-25 09:41:51,954 INFO L130 PetriNetUnfolder]: For 258516/258531 co-relation queries the response was YES. [2021-03-25 09:41:52,014 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30778 conditions, 2300 events. 902/2300 cut-off events. For 258516/258531 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 19051 event pairs, 18 based on Foata normal form. 16/1957 useless extension candidates. Maximal degree in co-relation 30375. Up to 1233 conditions per place. [2021-03-25 09:41:52,025 INFO L132 encePairwiseOnDemand]: 161/179 looper letters, 860 selfloop transitions, 47 changer transitions 0/925 dead transitions. [2021-03-25 09:41:52,025 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 886 places, 925 transitions, 30714 flow [2021-03-25 09:41:52,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:41:52,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:41:52,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 701 transitions. [2021-03-25 09:41:52,027 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.30124623979372583 [2021-03-25 09:41:52,027 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 701 transitions. [2021-03-25 09:41:52,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 701 transitions. [2021-03-25 09:41:52,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:41:52,027 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 701 transitions. [2021-03-25 09:41:52,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 53.92307692307692) internal successors, (701), 13 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:52,028 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 179.0) internal successors, (2506), 14 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:52,028 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 179.0) internal successors, (2506), 14 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:52,028 INFO L185 Difference]: Start difference. First operand has 874 places, 918 transitions, 28616 flow. Second operand 13 states and 701 transitions. [2021-03-25 09:41:52,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 886 places, 925 transitions, 30714 flow [2021-03-25 09:41:54,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 879 places, 925 transitions, 30393 flow, removed 144 selfloop flow, removed 7 redundant places. [2021-03-25 09:41:55,005 INFO L241 Difference]: Finished difference. Result has 880 places, 920 transitions, 28642 flow [2021-03-25 09:41:55,005 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=28295, PETRI_DIFFERENCE_MINUEND_PLACES=867, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=918, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=872, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=28642, PETRI_PLACES=880, PETRI_TRANSITIONS=920} [2021-03-25 09:41:55,005 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 819 predicate places. [2021-03-25 09:41:55,005 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:41:55,006 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 880 places, 920 transitions, 28642 flow [2021-03-25 09:41:55,006 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 880 places, 920 transitions, 28642 flow [2021-03-25 09:41:55,015 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 880 places, 920 transitions, 28642 flow [2021-03-25 09:41:55,720 INFO L129 PetriNetUnfolder]: 871/2261 cut-off events. [2021-03-25 09:41:55,720 INFO L130 PetriNetUnfolder]: For 264675/264706 co-relation queries the response was YES. [2021-03-25 09:41:55,781 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29057 conditions, 2261 events. 871/2261 cut-off events. For 264675/264706 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 19171 event pairs, 16 based on Foata normal form. 0/1897 useless extension candidates. Maximal degree in co-relation 28663. Up to 382 conditions per place. [2021-03-25 09:41:55,831 INFO L142 LiptonReduction]: Number of co-enabled transitions 4132 [2021-03-25 09:41:56,098 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:41:56,098 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:41:56,098 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1093 [2021-03-25 09:41:56,099 INFO L480 AbstractCegarLoop]: Abstraction has has 880 places, 920 transitions, 28642 flow [2021-03-25 09:41:56,099 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 49.44444444444444) internal successors, (445), 9 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:56,099 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:41:56,099 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:41:56,099 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable314 [2021-03-25 09:41:56,099 INFO L428 AbstractCegarLoop]: === Iteration 316 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:41:56,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:41:56,099 INFO L82 PathProgramCache]: Analyzing trace with hash -974104751, now seen corresponding path program 16 times [2021-03-25 09:41:56,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:41:56,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956658209] [2021-03-25 09:41:56,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:41:56,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:41:56,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:56,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:41:56,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:56,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:41:56,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:56,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:41:56,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:56,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:41:56,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:56,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:41:56,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:56,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:41:56,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:41:56,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:41:56,156 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:41:56,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:41:56,159 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:41:56,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:41:56,172 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:41:56,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:41:56,176 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:41:56,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:41:56,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:41:56,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956658209] [2021-03-25 09:41:56,178 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:41:56,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:41:56,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466362558] [2021-03-25 09:41:56,179 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:41:56,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:41:56,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:41:56,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:41:56,179 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 179 [2021-03-25 09:41:56,180 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 880 places, 920 transitions, 28642 flow. Second operand has 9 states, 9 states have (on average 49.44444444444444) internal successors, (445), 9 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:56,180 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:41:56,180 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 179 [2021-03-25 09:41:56,180 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:41:57,667 INFO L129 PetriNetUnfolder]: 912/2325 cut-off events. [2021-03-25 09:41:57,667 INFO L130 PetriNetUnfolder]: For 257938/257951 co-relation queries the response was YES. [2021-03-25 09:41:57,731 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30829 conditions, 2325 events. 912/2325 cut-off events. For 257938/257951 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 19364 event pairs, 23 based on Foata normal form. 14/1970 useless extension candidates. Maximal degree in co-relation 30424. Up to 1227 conditions per place. [2021-03-25 09:41:57,743 INFO L132 encePairwiseOnDemand]: 163/179 looper letters, 868 selfloop transitions, 42 changer transitions 2/930 dead transitions. [2021-03-25 09:41:57,743 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 889 places, 930 transitions, 30698 flow [2021-03-25 09:41:57,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:41:57,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:41:57,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 554 transitions. [2021-03-25 09:41:57,745 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3094972067039106 [2021-03-25 09:41:57,745 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 554 transitions. [2021-03-25 09:41:57,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 554 transitions. [2021-03-25 09:41:57,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:41:57,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 554 transitions. [2021-03-25 09:41:57,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:57,746 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 179.0) internal successors, (1969), 11 states have internal predecessors, (1969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:57,746 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 179.0) internal successors, (1969), 11 states have internal predecessors, (1969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:41:57,746 INFO L185 Difference]: Start difference. First operand has 880 places, 920 transitions, 28642 flow. Second operand 10 states and 554 transitions. [2021-03-25 09:41:57,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 889 places, 930 transitions, 30698 flow [2021-03-25 09:42:00,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 881 places, 930 transitions, 30369 flow, removed 132 selfloop flow, removed 8 redundant places. [2021-03-25 09:42:00,790 INFO L241 Difference]: Finished difference. Result has 883 places, 921 transitions, 28459 flow [2021-03-25 09:42:00,791 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=28313, PETRI_DIFFERENCE_MINUEND_PLACES=872, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=920, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=879, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=28459, PETRI_PLACES=883, PETRI_TRANSITIONS=921} [2021-03-25 09:42:00,791 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 822 predicate places. [2021-03-25 09:42:00,791 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:42:00,791 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 883 places, 921 transitions, 28459 flow [2021-03-25 09:42:00,791 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 883 places, 921 transitions, 28459 flow [2021-03-25 09:42:00,800 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 882 places, 921 transitions, 28459 flow [2021-03-25 09:42:01,499 INFO L129 PetriNetUnfolder]: 868/2262 cut-off events. [2021-03-25 09:42:01,499 INFO L130 PetriNetUnfolder]: For 254893/254896 co-relation queries the response was YES. [2021-03-25 09:42:01,559 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28781 conditions, 2262 events. 868/2262 cut-off events. For 254893/254896 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 19275 event pairs, 16 based on Foata normal form. 1/1901 useless extension candidates. Maximal degree in co-relation 28384. Up to 376 conditions per place. [2021-03-25 09:42:01,610 INFO L142 LiptonReduction]: Number of co-enabled transitions 4132 [2021-03-25 09:42:01,711 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:42:01,711 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:42:01,711 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 920 [2021-03-25 09:42:01,711 INFO L480 AbstractCegarLoop]: Abstraction has has 882 places, 921 transitions, 28459 flow [2021-03-25 09:42:01,711 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 49.44444444444444) internal successors, (445), 9 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:01,711 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:42:01,711 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:42:01,711 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315 [2021-03-25 09:42:01,711 INFO L428 AbstractCegarLoop]: === Iteration 317 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:42:01,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:42:01,712 INFO L82 PathProgramCache]: Analyzing trace with hash 350058583, now seen corresponding path program 10 times [2021-03-25 09:42:01,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:42:01,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059865018] [2021-03-25 09:42:01,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:42:01,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:42:01,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:01,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:42:01,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:01,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:42:01,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:01,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:01,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:01,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:42:01,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:01,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:01,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:01,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:42:01,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:01,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:42:01,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:01,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:01,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:01,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:42:01,787 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:42:01,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:42:01,801 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:42:01,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:01,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:42:01,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059865018] [2021-03-25 09:42:01,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:42:01,803 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:42:01,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005777402] [2021-03-25 09:42:01,804 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:42:01,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:42:01,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:42:01,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:42:01,804 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 179 [2021-03-25 09:42:01,804 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 882 places, 921 transitions, 28459 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:01,804 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:42:01,804 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 179 [2021-03-25 09:42:01,805 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:42:03,394 INFO L129 PetriNetUnfolder]: 916/2340 cut-off events. [2021-03-25 09:42:03,395 INFO L130 PetriNetUnfolder]: For 259723/259727 co-relation queries the response was YES. [2021-03-25 09:42:03,456 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30944 conditions, 2340 events. 916/2340 cut-off events. For 259723/259727 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 19543 event pairs, 23 based on Foata normal form. 5/1973 useless extension candidates. Maximal degree in co-relation 30536. Up to 1205 conditions per place. [2021-03-25 09:42:03,468 INFO L132 encePairwiseOnDemand]: 160/179 looper letters, 830 selfloop transitions, 87 changer transitions 2/937 dead transitions. [2021-03-25 09:42:03,468 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 894 places, 937 transitions, 30948 flow [2021-03-25 09:42:03,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:42:03,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:42:03,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 721 transitions. [2021-03-25 09:42:03,469 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.309840996991835 [2021-03-25 09:42:03,470 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 721 transitions. [2021-03-25 09:42:03,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 721 transitions. [2021-03-25 09:42:03,470 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:42:03,470 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 721 transitions. [2021-03-25 09:42:03,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 55.46153846153846) internal successors, (721), 13 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:03,471 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 179.0) internal successors, (2506), 14 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:03,471 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 179.0) internal successors, (2506), 14 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:03,471 INFO L185 Difference]: Start difference. First operand has 882 places, 921 transitions, 28459 flow. Second operand 13 states and 721 transitions. [2021-03-25 09:42:03,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 894 places, 937 transitions, 30948 flow [2021-03-25 09:42:06,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 885 places, 937 transitions, 30805 flow, removed 21 selfloop flow, removed 9 redundant places. [2021-03-25 09:42:06,476 INFO L241 Difference]: Finished difference. Result has 890 places, 926 transitions, 28956 flow [2021-03-25 09:42:06,477 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=28320, PETRI_DIFFERENCE_MINUEND_PLACES=873, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=921, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=834, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=28956, PETRI_PLACES=890, PETRI_TRANSITIONS=926} [2021-03-25 09:42:06,477 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 829 predicate places. [2021-03-25 09:42:06,477 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:42:06,477 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 890 places, 926 transitions, 28956 flow [2021-03-25 09:42:06,477 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 890 places, 926 transitions, 28956 flow [2021-03-25 09:42:06,486 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 890 places, 926 transitions, 28956 flow [2021-03-25 09:42:07,211 INFO L129 PetriNetUnfolder]: 870/2266 cut-off events. [2021-03-25 09:42:07,211 INFO L130 PetriNetUnfolder]: For 266439/266471 co-relation queries the response was YES. [2021-03-25 09:42:07,272 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29265 conditions, 2266 events. 870/2266 cut-off events. For 266439/266471 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 19389 event pairs, 20 based on Foata normal form. 1/1904 useless extension candidates. Maximal degree in co-relation 28865. Up to 381 conditions per place. [2021-03-25 09:42:07,323 INFO L142 LiptonReduction]: Number of co-enabled transitions 4156 [2021-03-25 09:42:07,428 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:42:07,428 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:42:07,428 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 951 [2021-03-25 09:42:07,428 INFO L480 AbstractCegarLoop]: Abstraction has has 890 places, 926 transitions, 28956 flow [2021-03-25 09:42:07,429 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:07,429 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:42:07,429 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:42:07,429 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable316 [2021-03-25 09:42:07,429 INFO L428 AbstractCegarLoop]: === Iteration 318 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:42:07,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:42:07,429 INFO L82 PathProgramCache]: Analyzing trace with hash -1892956525, now seen corresponding path program 11 times [2021-03-25 09:42:07,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:42:07,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938187479] [2021-03-25 09:42:07,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:42:07,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:42:07,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:07,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:42:07,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:07,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:42:07,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:07,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:07,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:07,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:42:07,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:07,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:07,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:07,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:42:07,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:07,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:42:07,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:07,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:07,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:07,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:42:07,501 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:42:07,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:42:07,514 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:42:07,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:07,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:42:07,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938187479] [2021-03-25 09:42:07,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:42:07,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:42:07,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187941656] [2021-03-25 09:42:07,517 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:42:07,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:42:07,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:42:07,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:42:07,517 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 179 [2021-03-25 09:42:07,517 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 890 places, 926 transitions, 28956 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:07,518 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:42:07,518 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 179 [2021-03-25 09:42:07,518 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:42:09,141 INFO L129 PetriNetUnfolder]: 917/2349 cut-off events. [2021-03-25 09:42:09,141 INFO L130 PetriNetUnfolder]: For 260195/260199 co-relation queries the response was YES. [2021-03-25 09:42:09,197 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31063 conditions, 2349 events. 917/2349 cut-off events. For 260195/260199 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 19665 event pairs, 23 based on Foata normal form. 5/1979 useless extension candidates. Maximal degree in co-relation 30652. Up to 1212 conditions per place. [2021-03-25 09:42:09,209 INFO L132 encePairwiseOnDemand]: 158/179 looper letters, 838 selfloop transitions, 60 changer transitions 19/935 dead transitions. [2021-03-25 09:42:09,209 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 901 places, 935 transitions, 31033 flow [2021-03-25 09:42:09,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:42:09,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:42:09,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 665 transitions. [2021-03-25 09:42:09,210 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3095903165735568 [2021-03-25 09:42:09,210 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 665 transitions. [2021-03-25 09:42:09,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 665 transitions. [2021-03-25 09:42:09,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:42:09,211 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 665 transitions. [2021-03-25 09:42:09,211 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 55.416666666666664) internal successors, (665), 12 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:09,212 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 179.0) internal successors, (2327), 13 states have internal predecessors, (2327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:09,212 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 179.0) internal successors, (2327), 13 states have internal predecessors, (2327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:09,212 INFO L185 Difference]: Start difference. First operand has 890 places, 926 transitions, 28956 flow. Second operand 12 states and 665 transitions. [2021-03-25 09:42:09,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 901 places, 935 transitions, 31033 flow [2021-03-25 09:42:12,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 892 places, 935 transitions, 30628 flow, removed 126 selfloop flow, removed 9 redundant places. [2021-03-25 09:42:12,298 INFO L241 Difference]: Finished difference. Result has 896 places, 910 transitions, 28213 flow [2021-03-25 09:42:12,298 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=28551, PETRI_DIFFERENCE_MINUEND_PLACES=881, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=926, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=866, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=28213, PETRI_PLACES=896, PETRI_TRANSITIONS=910} [2021-03-25 09:42:12,298 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 835 predicate places. [2021-03-25 09:42:12,298 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:42:12,298 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 896 places, 910 transitions, 28213 flow [2021-03-25 09:42:12,298 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 896 places, 910 transitions, 28213 flow [2021-03-25 09:42:12,307 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 887 places, 910 transitions, 28213 flow [2021-03-25 09:42:12,991 INFO L129 PetriNetUnfolder]: 854/2215 cut-off events. [2021-03-25 09:42:12,991 INFO L130 PetriNetUnfolder]: For 266024/266059 co-relation queries the response was YES. [2021-03-25 09:42:13,053 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28736 conditions, 2215 events. 854/2215 cut-off events. For 266024/266059 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 18759 event pairs, 15 based on Foata normal form. 0/1862 useless extension candidates. Maximal degree in co-relation 28335. Up to 377 conditions per place. [2021-03-25 09:42:13,106 INFO L142 LiptonReduction]: Number of co-enabled transitions 4056 [2021-03-25 09:42:13,206 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:42:13,206 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:42:13,206 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 908 [2021-03-25 09:42:13,206 INFO L480 AbstractCegarLoop]: Abstraction has has 887 places, 910 transitions, 28213 flow [2021-03-25 09:42:13,207 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:13,207 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:42:13,207 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:42:13,207 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable317 [2021-03-25 09:42:13,207 INFO L428 AbstractCegarLoop]: === Iteration 319 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:42:13,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:42:13,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1651838791, now seen corresponding path program 18 times [2021-03-25 09:42:13,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:42:13,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939939931] [2021-03-25 09:42:13,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:42:13,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:42:13,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:13,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:42:13,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:13,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:42:13,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:13,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:13,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:13,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:42:13,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:13,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:42:13,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:13,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:42:13,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:13,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:13,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:13,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:13,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:13,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:42:13,320 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:42:13,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:42:13,334 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:42:13,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:13,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:42:13,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939939931] [2021-03-25 09:42:13,336 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:42:13,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:42:13,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672903966] [2021-03-25 09:42:13,337 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:42:13,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:42:13,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:42:13,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:42:13,337 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 179 [2021-03-25 09:42:13,337 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 887 places, 910 transitions, 28213 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:13,337 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:42:13,337 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 179 [2021-03-25 09:42:13,337 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:42:14,933 INFO L129 PetriNetUnfolder]: 897/2285 cut-off events. [2021-03-25 09:42:14,933 INFO L130 PetriNetUnfolder]: For 258184/258188 co-relation queries the response was YES. [2021-03-25 09:42:14,980 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30503 conditions, 2285 events. 897/2285 cut-off events. For 258184/258188 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 18924 event pairs, 23 based on Foata normal form. 5/1930 useless extension candidates. Maximal degree in co-relation 30100. Up to 1223 conditions per place. [2021-03-25 09:42:14,992 INFO L132 encePairwiseOnDemand]: 162/179 looper letters, 862 selfloop transitions, 26 changer transitions 10/916 dead transitions. [2021-03-25 09:42:14,993 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 900 places, 916 transitions, 30098 flow [2021-03-25 09:42:14,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:42:14,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:42:14,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 739 transitions. [2021-03-25 09:42:14,994 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2948922585794094 [2021-03-25 09:42:14,994 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 739 transitions. [2021-03-25 09:42:14,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 739 transitions. [2021-03-25 09:42:14,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:42:14,994 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 739 transitions. [2021-03-25 09:42:14,995 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 52.785714285714285) internal successors, (739), 14 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:14,996 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 179.0) internal successors, (2685), 15 states have internal predecessors, (2685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:14,996 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 179.0) internal successors, (2685), 15 states have internal predecessors, (2685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:14,996 INFO L185 Difference]: Start difference. First operand has 887 places, 910 transitions, 28213 flow. Second operand 14 states and 739 transitions. [2021-03-25 09:42:14,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 900 places, 916 transitions, 30098 flow [2021-03-25 09:42:17,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 876 places, 916 transitions, 29857 flow, removed 12 selfloop flow, removed 24 redundant places. [2021-03-25 09:42:17,848 INFO L241 Difference]: Finished difference. Result has 878 places, 902 transitions, 27867 flow [2021-03-25 09:42:17,848 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=27972, PETRI_DIFFERENCE_MINUEND_PLACES=863, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=910, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=884, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=27867, PETRI_PLACES=878, PETRI_TRANSITIONS=902} [2021-03-25 09:42:17,848 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 817 predicate places. [2021-03-25 09:42:17,848 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:42:17,848 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 878 places, 902 transitions, 27867 flow [2021-03-25 09:42:17,848 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 878 places, 902 transitions, 27867 flow [2021-03-25 09:42:17,857 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 864 places, 902 transitions, 27867 flow [2021-03-25 09:42:18,527 INFO L129 PetriNetUnfolder]: 852/2201 cut-off events. [2021-03-25 09:42:18,528 INFO L130 PetriNetUnfolder]: For 262394/262430 co-relation queries the response was YES. [2021-03-25 09:42:18,585 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28520 conditions, 2201 events. 852/2201 cut-off events. For 262394/262430 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 18532 event pairs, 16 based on Foata normal form. 1/1852 useless extension candidates. Maximal degree in co-relation 28132. Up to 377 conditions per place. [2021-03-25 09:42:18,632 INFO L142 LiptonReduction]: Number of co-enabled transitions 4022 [2021-03-25 09:42:18,884 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:42:18,885 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:42:18,885 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1037 [2021-03-25 09:42:18,885 INFO L480 AbstractCegarLoop]: Abstraction has has 864 places, 902 transitions, 27872 flow [2021-03-25 09:42:18,885 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:18,885 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:42:18,885 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:42:18,885 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable318 [2021-03-25 09:42:18,885 INFO L428 AbstractCegarLoop]: === Iteration 320 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:42:18,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:42:18,885 INFO L82 PathProgramCache]: Analyzing trace with hash -40813153, now seen corresponding path program 12 times [2021-03-25 09:42:18,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:42:18,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820090474] [2021-03-25 09:42:18,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:42:18,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:42:18,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:18,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:42:18,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:18,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:42:18,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:18,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:18,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:18,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:42:18,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:18,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:18,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:18,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:42:18,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:18,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:42:18,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:18,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:18,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:18,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:42:18,949 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:42:18,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:42:18,962 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:42:18,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:18,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:42:18,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820090474] [2021-03-25 09:42:18,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:42:18,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:42:18,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147886550] [2021-03-25 09:42:18,964 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:42:18,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:42:18,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:42:18,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:42:18,965 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 180 [2021-03-25 09:42:18,965 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 864 places, 902 transitions, 27872 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:18,965 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:42:18,965 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 180 [2021-03-25 09:42:18,965 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:42:20,452 INFO L129 PetriNetUnfolder]: 888/2254 cut-off events. [2021-03-25 09:42:20,453 INFO L130 PetriNetUnfolder]: For 256470/256485 co-relation queries the response was YES. [2021-03-25 09:42:20,511 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30297 conditions, 2254 events. 888/2254 cut-off events. For 256470/256485 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 18574 event pairs, 18 based on Foata normal form. 16/1919 useless extension candidates. Maximal degree in co-relation 29907. Up to 1187 conditions per place. [2021-03-25 09:42:20,522 INFO L132 encePairwiseOnDemand]: 159/180 looper letters, 817 selfloop transitions, 73 changer transitions 4/912 dead transitions. [2021-03-25 09:42:20,523 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 875 places, 912 transitions, 29986 flow [2021-03-25 09:42:20,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:42:20,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:42:20,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 671 transitions. [2021-03-25 09:42:20,524 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3106481481481482 [2021-03-25 09:42:20,524 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 671 transitions. [2021-03-25 09:42:20,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 671 transitions. [2021-03-25 09:42:20,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:42:20,524 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 671 transitions. [2021-03-25 09:42:20,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 55.916666666666664) internal successors, (671), 12 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:20,525 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 180.0) internal successors, (2340), 13 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:20,525 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 180.0) internal successors, (2340), 13 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:20,526 INFO L185 Difference]: Start difference. First operand has 864 places, 902 transitions, 27872 flow. Second operand 12 states and 671 transitions. [2021-03-25 09:42:20,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 875 places, 912 transitions, 29986 flow [2021-03-25 09:42:23,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 859 places, 912 transitions, 29824 flow, removed 18 selfloop flow, removed 16 redundant places. [2021-03-25 09:42:23,321 INFO L241 Difference]: Finished difference. Result has 862 places, 900 transitions, 27949 flow [2021-03-25 09:42:23,321 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=27710, PETRI_DIFFERENCE_MINUEND_PLACES=848, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=902, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=829, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=27949, PETRI_PLACES=862, PETRI_TRANSITIONS=900} [2021-03-25 09:42:23,321 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 801 predicate places. [2021-03-25 09:42:23,321 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:42:23,321 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 862 places, 900 transitions, 27949 flow [2021-03-25 09:42:23,321 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 862 places, 900 transitions, 27949 flow [2021-03-25 09:42:23,330 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 859 places, 900 transitions, 27949 flow [2021-03-25 09:42:23,998 INFO L129 PetriNetUnfolder]: 857/2210 cut-off events. [2021-03-25 09:42:23,998 INFO L130 PetriNetUnfolder]: For 257455/257490 co-relation queries the response was YES. [2021-03-25 09:42:24,057 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28518 conditions, 2210 events. 857/2210 cut-off events. For 257455/257490 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 18640 event pairs, 17 based on Foata normal form. 0/1854 useless extension candidates. Maximal degree in co-relation 28131. Up to 378 conditions per place. [2021-03-25 09:42:24,107 INFO L142 LiptonReduction]: Number of co-enabled transitions 4010 [2021-03-25 09:42:24,204 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:42:24,204 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:42:24,204 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 883 [2021-03-25 09:42:24,204 INFO L480 AbstractCegarLoop]: Abstraction has has 859 places, 900 transitions, 27949 flow [2021-03-25 09:42:24,204 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:24,204 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:42:24,204 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:42:24,205 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable319 [2021-03-25 09:42:24,205 INFO L428 AbstractCegarLoop]: === Iteration 321 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:42:24,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:42:24,205 INFO L82 PathProgramCache]: Analyzing trace with hash 1998648119, now seen corresponding path program 17 times [2021-03-25 09:42:24,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:42:24,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822674513] [2021-03-25 09:42:24,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:42:24,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:42:24,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:24,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:42:24,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:24,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:42:24,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:24,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:24,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:24,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:42:24,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:24,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:42:24,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:24,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:24,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:24,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:24,268 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:42:24,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:42:24,271 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:42:24,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:42:24,285 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:42:24,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:42:24,289 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:42:24,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:24,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:42:24,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822674513] [2021-03-25 09:42:24,292 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:42:24,292 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:42:24,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007973494] [2021-03-25 09:42:24,292 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:42:24,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:42:24,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:42:24,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:42:24,293 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 180 [2021-03-25 09:42:24,293 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 859 places, 900 transitions, 27949 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:24,293 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:42:24,293 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 180 [2021-03-25 09:42:24,293 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:42:25,956 INFO L129 PetriNetUnfolder]: 893/2265 cut-off events. [2021-03-25 09:42:25,957 INFO L130 PetriNetUnfolder]: For 249984/249988 co-relation queries the response was YES. [2021-03-25 09:42:26,018 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30269 conditions, 2265 events. 893/2265 cut-off events. For 249984/249988 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 18696 event pairs, 24 based on Foata normal form. 5/1914 useless extension candidates. Maximal degree in co-relation 29871. Up to 1180 conditions per place. [2021-03-25 09:42:26,031 INFO L132 encePairwiseOnDemand]: 164/180 looper letters, 823 selfloop transitions, 68 changer transitions 2/911 dead transitions. [2021-03-25 09:42:26,031 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 869 places, 911 transitions, 30117 flow [2021-03-25 09:42:26,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:42:26,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:42:26,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 608 transitions. [2021-03-25 09:42:26,032 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.30707070707070705 [2021-03-25 09:42:26,032 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 608 transitions. [2021-03-25 09:42:26,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 608 transitions. [2021-03-25 09:42:26,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:42:26,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 608 transitions. [2021-03-25 09:42:26,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 55.27272727272727) internal successors, (608), 11 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:26,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 180.0) internal successors, (2160), 12 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:26,034 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 180.0) internal successors, (2160), 12 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:26,034 INFO L185 Difference]: Start difference. First operand has 859 places, 900 transitions, 27949 flow. Second operand 11 states and 608 transitions. [2021-03-25 09:42:26,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 869 places, 911 transitions, 30117 flow [2021-03-25 09:42:29,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 857 places, 911 transitions, 29813 flow, removed 72 selfloop flow, removed 12 redundant places. [2021-03-25 09:42:29,192 INFO L241 Difference]: Finished difference. Result has 859 places, 902 transitions, 28001 flow [2021-03-25 09:42:29,193 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=27649, PETRI_DIFFERENCE_MINUEND_PLACES=847, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=900, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=833, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=28001, PETRI_PLACES=859, PETRI_TRANSITIONS=902} [2021-03-25 09:42:29,193 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 798 predicate places. [2021-03-25 09:42:29,193 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:42:29,193 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 859 places, 902 transitions, 28001 flow [2021-03-25 09:42:29,193 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 859 places, 902 transitions, 28001 flow [2021-03-25 09:42:29,203 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 858 places, 902 transitions, 28001 flow [2021-03-25 09:42:29,930 INFO L129 PetriNetUnfolder]: 844/2185 cut-off events. [2021-03-25 09:42:29,930 INFO L130 PetriNetUnfolder]: For 254997/254999 co-relation queries the response was YES. [2021-03-25 09:42:29,989 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28215 conditions, 2185 events. 844/2185 cut-off events. For 254997/254999 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 18415 event pairs, 14 based on Foata normal form. 0/1841 useless extension candidates. Maximal degree in co-relation 27831. Up to 375 conditions per place. [2021-03-25 09:42:30,038 INFO L142 LiptonReduction]: Number of co-enabled transitions 4010 [2021-03-25 09:42:30,127 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:42:30,128 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:42:30,128 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 935 [2021-03-25 09:42:30,128 INFO L480 AbstractCegarLoop]: Abstraction has has 858 places, 902 transitions, 28001 flow [2021-03-25 09:42:30,128 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:30,128 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:42:30,128 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:42:30,128 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable320 [2021-03-25 09:42:30,128 INFO L428 AbstractCegarLoop]: === Iteration 322 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:42:30,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:42:30,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1644200013, now seen corresponding path program 13 times [2021-03-25 09:42:30,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:42:30,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188917959] [2021-03-25 09:42:30,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:42:30,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:42:30,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:30,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:42:30,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:30,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:42:30,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:30,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:30,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:30,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:42:30,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:30,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:30,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:30,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:30,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:30,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:30,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:30,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:30,179 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 09:42:30,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:42:30,190 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:42:30,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:42:30,202 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:42:30,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:30,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:42:30,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188917959] [2021-03-25 09:42:30,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:42:30,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:42:30,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614990106] [2021-03-25 09:42:30,204 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:42:30,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:42:30,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:42:30,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:42:30,205 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 180 [2021-03-25 09:42:30,205 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 858 places, 902 transitions, 28001 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:30,205 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:42:30,205 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 180 [2021-03-25 09:42:30,205 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:42:31,635 INFO L129 PetriNetUnfolder]: 885/2253 cut-off events. [2021-03-25 09:42:31,635 INFO L130 PetriNetUnfolder]: For 251842/251857 co-relation queries the response was YES. [2021-03-25 09:42:31,691 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30161 conditions, 2253 events. 885/2253 cut-off events. For 251842/251857 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 18578 event pairs, 18 based on Foata normal form. 16/1919 useless extension candidates. Maximal degree in co-relation 29766. Up to 1202 conditions per place. [2021-03-25 09:42:31,702 INFO L132 encePairwiseOnDemand]: 162/180 looper letters, 835 selfloop transitions, 53 changer transitions 3/909 dead transitions. [2021-03-25 09:42:31,702 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 870 places, 909 transitions, 29943 flow [2021-03-25 09:42:31,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:42:31,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:42:31,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 705 transitions. [2021-03-25 09:42:31,704 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.30128205128205127 [2021-03-25 09:42:31,704 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 705 transitions. [2021-03-25 09:42:31,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 705 transitions. [2021-03-25 09:42:31,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:42:31,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 705 transitions. [2021-03-25 09:42:31,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 54.23076923076923) internal successors, (705), 13 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:31,705 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 180.0) internal successors, (2520), 14 states have internal predecessors, (2520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:31,705 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 180.0) internal successors, (2520), 14 states have internal predecessors, (2520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:31,705 INFO L185 Difference]: Start difference. First operand has 858 places, 902 transitions, 28001 flow. Second operand 13 states and 705 transitions. [2021-03-25 09:42:31,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 870 places, 909 transitions, 29943 flow [2021-03-25 09:42:34,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 860 places, 909 transitions, 29671 flow, removed 70 selfloop flow, removed 10 redundant places. [2021-03-25 09:42:34,372 INFO L241 Difference]: Finished difference. Result has 862 places, 900 transitions, 27800 flow [2021-03-25 09:42:34,373 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=27731, PETRI_DIFFERENCE_MINUEND_PLACES=848, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=902, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=849, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=27800, PETRI_PLACES=862, PETRI_TRANSITIONS=900} [2021-03-25 09:42:34,373 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 801 predicate places. [2021-03-25 09:42:34,373 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:42:34,373 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 862 places, 900 transitions, 27800 flow [2021-03-25 09:42:34,373 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 862 places, 900 transitions, 27800 flow [2021-03-25 09:42:34,382 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 861 places, 900 transitions, 27800 flow [2021-03-25 09:42:35,048 INFO L129 PetriNetUnfolder]: 845/2188 cut-off events. [2021-03-25 09:42:35,048 INFO L130 PetriNetUnfolder]: For 259575/259613 co-relation queries the response was YES. [2021-03-25 09:42:35,106 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28363 conditions, 2188 events. 845/2188 cut-off events. For 259575/259613 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 18366 event pairs, 14 based on Foata normal form. 1/1843 useless extension candidates. Maximal degree in co-relation 27979. Up to 378 conditions per place. [2021-03-25 09:42:35,296 INFO L142 LiptonReduction]: Number of co-enabled transitions 4010 [2021-03-25 09:42:35,385 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:42:35,385 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:42:35,385 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1012 [2021-03-25 09:42:35,385 INFO L480 AbstractCegarLoop]: Abstraction has has 861 places, 900 transitions, 27800 flow [2021-03-25 09:42:35,385 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:35,385 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:42:35,385 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:42:35,385 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable321 [2021-03-25 09:42:35,385 INFO L428 AbstractCegarLoop]: === Iteration 323 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:42:35,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:42:35,386 INFO L82 PathProgramCache]: Analyzing trace with hash 30715945, now seen corresponding path program 18 times [2021-03-25 09:42:35,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:42:35,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036765952] [2021-03-25 09:42:35,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:42:35,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:42:35,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:35,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:42:35,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:35,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:42:35,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:35,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:35,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:35,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:42:35,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:35,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:42:35,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:35,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:42:35,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:35,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:35,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:35,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:35,460 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:42:35,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:42:35,474 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:42:35,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:42:35,478 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:42:35,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:35,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:42:35,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036765952] [2021-03-25 09:42:35,480 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:42:35,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:42:35,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117796418] [2021-03-25 09:42:35,480 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:42:35,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:42:35,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:42:35,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:42:35,481 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 180 [2021-03-25 09:42:35,481 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 861 places, 900 transitions, 27800 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:35,481 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:42:35,481 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 180 [2021-03-25 09:42:35,481 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:42:36,901 INFO L129 PetriNetUnfolder]: 886/2253 cut-off events. [2021-03-25 09:42:36,901 INFO L130 PetriNetUnfolder]: For 249041/249054 co-relation queries the response was YES. [2021-03-25 09:42:36,960 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30080 conditions, 2253 events. 886/2253 cut-off events. For 249041/249054 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 18636 event pairs, 22 based on Foata normal form. 14/1915 useless extension candidates. Maximal degree in co-relation 29685. Up to 1193 conditions per place. [2021-03-25 09:42:36,972 INFO L132 encePairwiseOnDemand]: 164/180 looper letters, 834 selfloop transitions, 55 changer transitions 2/909 dead transitions. [2021-03-25 09:42:36,972 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 873 places, 909 transitions, 29756 flow [2021-03-25 09:42:36,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:42:36,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:42:36,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 706 transitions. [2021-03-25 09:42:36,973 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3017094017094017 [2021-03-25 09:42:36,973 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 706 transitions. [2021-03-25 09:42:36,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 706 transitions. [2021-03-25 09:42:36,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:42:36,974 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 706 transitions. [2021-03-25 09:42:36,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 54.30769230769231) internal successors, (706), 13 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:36,975 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 180.0) internal successors, (2520), 14 states have internal predecessors, (2520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:36,975 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 180.0) internal successors, (2520), 14 states have internal predecessors, (2520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:36,975 INFO L185 Difference]: Start difference. First operand has 861 places, 900 transitions, 27800 flow. Second operand 13 states and 706 transitions. [2021-03-25 09:42:36,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 873 places, 909 transitions, 29756 flow [2021-03-25 09:42:39,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 858 places, 909 transitions, 29581 flow, removed 6 selfloop flow, removed 15 redundant places. [2021-03-25 09:42:39,803 INFO L241 Difference]: Finished difference. Result has 860 places, 899 transitions, 27721 flow [2021-03-25 09:42:39,803 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=27627, PETRI_DIFFERENCE_MINUEND_PLACES=846, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=900, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=845, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=27721, PETRI_PLACES=860, PETRI_TRANSITIONS=899} [2021-03-25 09:42:39,803 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 799 predicate places. [2021-03-25 09:42:39,803 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:42:39,803 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 860 places, 899 transitions, 27721 flow [2021-03-25 09:42:39,803 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 860 places, 899 transitions, 27721 flow [2021-03-25 09:42:39,812 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 859 places, 899 transitions, 27721 flow [2021-03-25 09:42:40,486 INFO L129 PetriNetUnfolder]: 842/2187 cut-off events. [2021-03-25 09:42:40,487 INFO L130 PetriNetUnfolder]: For 249439/249442 co-relation queries the response was YES. [2021-03-25 09:42:40,544 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28099 conditions, 2187 events. 842/2187 cut-off events. For 249439/249442 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 18523 event pairs, 15 based on Foata normal form. 1/1843 useless extension candidates. Maximal degree in co-relation 27716. Up to 374 conditions per place. [2021-03-25 09:42:40,593 INFO L142 LiptonReduction]: Number of co-enabled transitions 4010 [2021-03-25 09:42:40,690 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:42:40,690 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:42:40,690 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 887 [2021-03-25 09:42:40,691 INFO L480 AbstractCegarLoop]: Abstraction has has 859 places, 899 transitions, 27721 flow [2021-03-25 09:42:40,691 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:40,691 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:42:40,691 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:42:40,691 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable322 [2021-03-25 09:42:40,691 INFO L428 AbstractCegarLoop]: === Iteration 324 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:42:40,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:42:40,691 INFO L82 PathProgramCache]: Analyzing trace with hash 1596759303, now seen corresponding path program 14 times [2021-03-25 09:42:40,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:42:40,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701544448] [2021-03-25 09:42:40,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:42:40,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:42:40,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:40,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:42:40,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:40,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:42:40,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:40,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:40,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:40,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:42:40,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:40,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:40,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:40,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:42:40,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:40,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:42:40,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:40,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:40,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:40,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:42:40,755 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:42:40,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:42:40,767 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:42:40,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:40,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:42:40,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701544448] [2021-03-25 09:42:40,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:42:40,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:42:40,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264671605] [2021-03-25 09:42:40,770 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:42:40,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:42:40,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:42:40,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:42:40,770 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 180 [2021-03-25 09:42:40,770 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 859 places, 899 transitions, 27721 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:40,770 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:42:40,770 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 180 [2021-03-25 09:42:40,771 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:42:42,223 INFO L129 PetriNetUnfolder]: 883/2252 cut-off events. [2021-03-25 09:42:42,223 INFO L130 PetriNetUnfolder]: For 252700/252715 co-relation queries the response was YES. [2021-03-25 09:42:42,278 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30050 conditions, 2252 events. 883/2252 cut-off events. For 252700/252715 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 18564 event pairs, 17 based on Foata normal form. 16/1918 useless extension candidates. Maximal degree in co-relation 29656. Up to 1175 conditions per place. [2021-03-25 09:42:42,289 INFO L132 encePairwiseOnDemand]: 159/180 looper letters, 804 selfloop transitions, 88 changer transitions 0/910 dead transitions. [2021-03-25 09:42:42,290 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 871 places, 910 transitions, 29769 flow [2021-03-25 09:42:42,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:42:42,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:42:42,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 724 transitions. [2021-03-25 09:42:42,291 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3094017094017094 [2021-03-25 09:42:42,291 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 724 transitions. [2021-03-25 09:42:42,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 724 transitions. [2021-03-25 09:42:42,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:42:42,291 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 724 transitions. [2021-03-25 09:42:42,292 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 55.69230769230769) internal successors, (724), 13 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:42,293 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 180.0) internal successors, (2520), 14 states have internal predecessors, (2520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:42,293 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 180.0) internal successors, (2520), 14 states have internal predecessors, (2520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:42,293 INFO L185 Difference]: Start difference. First operand has 859 places, 899 transitions, 27721 flow. Second operand 13 states and 724 transitions. [2021-03-25 09:42:42,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 871 places, 910 transitions, 29769 flow [2021-03-25 09:42:44,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 860 places, 910 transitions, 29663 flow, removed 4 selfloop flow, removed 11 redundant places. [2021-03-25 09:42:44,943 INFO L241 Difference]: Finished difference. Result has 863 places, 901 transitions, 27990 flow [2021-03-25 09:42:44,943 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=27615, PETRI_DIFFERENCE_MINUEND_PLACES=848, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=899, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=811, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=27990, PETRI_PLACES=863, PETRI_TRANSITIONS=901} [2021-03-25 09:42:44,943 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 802 predicate places. [2021-03-25 09:42:44,943 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:42:44,943 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 863 places, 901 transitions, 27990 flow [2021-03-25 09:42:44,944 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 863 places, 901 transitions, 27990 flow [2021-03-25 09:42:44,953 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 863 places, 901 transitions, 27990 flow [2021-03-25 09:42:45,626 INFO L129 PetriNetUnfolder]: 842/2192 cut-off events. [2021-03-25 09:42:45,626 INFO L130 PetriNetUnfolder]: For 254590/254597 co-relation queries the response was YES. [2021-03-25 09:42:45,684 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28244 conditions, 2192 events. 842/2192 cut-off events. For 254590/254597 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 18501 event pairs, 15 based on Foata normal form. 1/1847 useless extension candidates. Maximal degree in co-relation 27860. Up to 375 conditions per place. [2021-03-25 09:42:45,733 INFO L142 LiptonReduction]: Number of co-enabled transitions 4030 [2021-03-25 09:42:45,828 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:42:45,828 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:42:45,828 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 885 [2021-03-25 09:42:45,828 INFO L480 AbstractCegarLoop]: Abstraction has has 863 places, 901 transitions, 27990 flow [2021-03-25 09:42:45,829 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:45,829 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:42:45,829 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:42:45,829 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable323 [2021-03-25 09:42:45,829 INFO L428 AbstractCegarLoop]: === Iteration 325 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:42:45,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:42:45,829 INFO L82 PathProgramCache]: Analyzing trace with hash 943101791, now seen corresponding path program 19 times [2021-03-25 09:42:45,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:42:45,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582590930] [2021-03-25 09:42:45,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:42:45,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:42:45,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:45,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:42:45,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:45,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:42:45,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:45,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:45,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:45,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:42:45,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:45,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:42:45,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:45,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:42:45,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:45,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:45,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:45,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:45,946 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:42:45,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:42:45,959 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:42:45,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:42:45,973 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:42:45,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:45,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:42:45,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582590930] [2021-03-25 09:42:45,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:42:45,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:42:45,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555115300] [2021-03-25 09:42:45,976 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:42:45,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:42:45,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:42:45,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:42:45,976 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 180 [2021-03-25 09:42:45,977 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 863 places, 901 transitions, 27990 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:45,977 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:42:45,977 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 180 [2021-03-25 09:42:45,977 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:42:47,682 INFO L129 PetriNetUnfolder]: 890/2271 cut-off events. [2021-03-25 09:42:47,682 INFO L130 PetriNetUnfolder]: For 248387/248391 co-relation queries the response was YES. [2021-03-25 09:42:47,728 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30171 conditions, 2271 events. 890/2271 cut-off events. For 248387/248391 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 18842 event pairs, 25 based on Foata normal form. 5/1918 useless extension candidates. Maximal degree in co-relation 29776. Up to 1182 conditions per place. [2021-03-25 09:42:47,741 INFO L132 encePairwiseOnDemand]: 164/180 looper letters, 822 selfloop transitions, 62 changer transitions 9/911 dead transitions. [2021-03-25 09:42:47,741 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 876 places, 911 transitions, 29922 flow [2021-03-25 09:42:47,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:42:47,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:42:47,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 761 transitions. [2021-03-25 09:42:47,742 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.30198412698412697 [2021-03-25 09:42:47,742 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 761 transitions. [2021-03-25 09:42:47,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 761 transitions. [2021-03-25 09:42:47,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:42:47,743 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 761 transitions. [2021-03-25 09:42:47,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 54.357142857142854) internal successors, (761), 14 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:47,744 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 180.0) internal successors, (2700), 15 states have internal predecessors, (2700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:47,744 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 180.0) internal successors, (2700), 15 states have internal predecessors, (2700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:47,744 INFO L185 Difference]: Start difference. First operand has 863 places, 901 transitions, 27990 flow. Second operand 14 states and 761 transitions. [2021-03-25 09:42:47,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 876 places, 911 transitions, 29922 flow [2021-03-25 09:42:50,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 866 places, 911 transitions, 29566 flow, removed 102 selfloop flow, removed 10 redundant places. [2021-03-25 09:42:50,712 INFO L241 Difference]: Finished difference. Result has 868 places, 893 transitions, 27609 flow [2021-03-25 09:42:50,712 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=27636, PETRI_DIFFERENCE_MINUEND_PLACES=853, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=901, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=839, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=27609, PETRI_PLACES=868, PETRI_TRANSITIONS=893} [2021-03-25 09:42:50,712 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 807 predicate places. [2021-03-25 09:42:50,712 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:42:50,712 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 868 places, 893 transitions, 27609 flow [2021-03-25 09:42:50,713 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 868 places, 893 transitions, 27609 flow [2021-03-25 09:42:50,721 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 867 places, 893 transitions, 27609 flow [2021-03-25 09:42:51,363 INFO L129 PetriNetUnfolder]: 838/2179 cut-off events. [2021-03-25 09:42:51,364 INFO L130 PetriNetUnfolder]: For 249724/249726 co-relation queries the response was YES. [2021-03-25 09:42:51,425 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27911 conditions, 2179 events. 838/2179 cut-off events. For 249724/249726 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 18451 event pairs, 14 based on Foata normal form. 0/1833 useless extension candidates. Maximal degree in co-relation 27525. Up to 371 conditions per place. [2021-03-25 09:42:51,473 INFO L142 LiptonReduction]: Number of co-enabled transitions 4028 [2021-03-25 09:42:51,732 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:42:51,732 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:42:51,732 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1020 [2021-03-25 09:42:51,732 INFO L480 AbstractCegarLoop]: Abstraction has has 867 places, 893 transitions, 27612 flow [2021-03-25 09:42:51,732 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:51,732 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:42:51,732 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:42:51,732 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable324 [2021-03-25 09:42:51,732 INFO L428 AbstractCegarLoop]: === Iteration 326 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:42:51,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:42:51,733 INFO L82 PathProgramCache]: Analyzing trace with hash -1286166003, now seen corresponding path program 15 times [2021-03-25 09:42:51,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:42:51,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219219110] [2021-03-25 09:42:51,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:42:51,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:42:51,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:51,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:42:51,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:51,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:42:51,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:51,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:51,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:51,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:42:51,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:51,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:51,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:51,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:51,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:51,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:51,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:51,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:51,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:51,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:42:51,795 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:42:51,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:42:51,799 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:42:51,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:51,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:42:51,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219219110] [2021-03-25 09:42:51,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:42:51,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:42:51,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360405999] [2021-03-25 09:42:51,801 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:42:51,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:42:51,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:42:51,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:42:51,802 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 181 [2021-03-25 09:42:51,802 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 867 places, 893 transitions, 27612 flow. Second operand has 9 states, 9 states have (on average 49.44444444444444) internal successors, (445), 9 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:51,802 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:42:51,802 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 181 [2021-03-25 09:42:51,802 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:42:53,261 INFO L129 PetriNetUnfolder]: 915/2310 cut-off events. [2021-03-25 09:42:53,261 INFO L130 PetriNetUnfolder]: For 264148/264152 co-relation queries the response was YES. [2021-03-25 09:42:53,321 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31079 conditions, 2310 events. 915/2310 cut-off events. For 264148/264152 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 19057 event pairs, 24 based on Foata normal form. 5/1954 useless extension candidates. Maximal degree in co-relation 30682. Up to 1215 conditions per place. [2021-03-25 09:42:53,332 INFO L132 encePairwiseOnDemand]: 163/181 looper letters, 830 selfloop transitions, 78 changer transitions 0/926 dead transitions. [2021-03-25 09:42:53,332 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 876 places, 926 transitions, 30681 flow [2021-03-25 09:42:53,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:42:53,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:42:53,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 564 transitions. [2021-03-25 09:42:53,334 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3116022099447514 [2021-03-25 09:42:53,334 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 564 transitions. [2021-03-25 09:42:53,334 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 564 transitions. [2021-03-25 09:42:53,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:42:53,334 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 564 transitions. [2021-03-25 09:42:53,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 56.4) internal successors, (564), 10 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:53,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 181.0) internal successors, (1991), 11 states have internal predecessors, (1991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:53,335 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 181.0) internal successors, (1991), 11 states have internal predecessors, (1991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:53,335 INFO L185 Difference]: Start difference. First operand has 867 places, 893 transitions, 27612 flow. Second operand 10 states and 564 transitions. [2021-03-25 09:42:53,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 876 places, 926 transitions, 30681 flow [2021-03-25 09:42:56,232 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 850 places, 926 transitions, 30323 flow, removed 50 selfloop flow, removed 26 redundant places. [2021-03-25 09:42:56,250 INFO L241 Difference]: Finished difference. Result has 855 places, 919 transitions, 28504 flow [2021-03-25 09:42:56,251 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=27258, PETRI_DIFFERENCE_MINUEND_PLACES=841, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=893, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=815, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=28504, PETRI_PLACES=855, PETRI_TRANSITIONS=919} [2021-03-25 09:42:56,251 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 794 predicate places. [2021-03-25 09:42:56,251 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:42:56,251 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 855 places, 919 transitions, 28504 flow [2021-03-25 09:42:56,251 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 855 places, 919 transitions, 28504 flow [2021-03-25 09:42:56,260 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 855 places, 919 transitions, 28504 flow [2021-03-25 09:42:56,968 INFO L129 PetriNetUnfolder]: 878/2266 cut-off events. [2021-03-25 09:42:56,968 INFO L130 PetriNetUnfolder]: For 259234/259240 co-relation queries the response was YES. [2021-03-25 09:42:57,029 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29183 conditions, 2266 events. 878/2266 cut-off events. For 259234/259240 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 19184 event pairs, 19 based on Foata normal form. 0/1905 useless extension candidates. Maximal degree in co-relation 28795. Up to 392 conditions per place. [2021-03-25 09:42:57,080 INFO L142 LiptonReduction]: Number of co-enabled transitions 4090 [2021-03-25 09:42:57,184 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:42:57,184 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:42:57,184 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 933 [2021-03-25 09:42:57,184 INFO L480 AbstractCegarLoop]: Abstraction has has 855 places, 919 transitions, 28504 flow [2021-03-25 09:42:57,184 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 49.44444444444444) internal successors, (445), 9 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:57,184 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:42:57,184 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:42:57,184 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable325 [2021-03-25 09:42:57,184 INFO L428 AbstractCegarLoop]: === Iteration 327 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:42:57,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:42:57,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1049230115, now seen corresponding path program 16 times [2021-03-25 09:42:57,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:42:57,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504738407] [2021-03-25 09:42:57,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:42:57,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:42:57,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:57,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:42:57,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:57,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:42:57,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:57,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:57,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:57,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:42:57,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:57,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:57,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:57,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:42:57,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:57,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:57,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:42:57,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:57,237 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 09:42:57,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:42:57,248 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:42:57,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:42:57,259 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:42:57,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:42:57,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:42:57,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504738407] [2021-03-25 09:42:57,262 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:42:57,262 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:42:57,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737961020] [2021-03-25 09:42:57,262 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:42:57,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:42:57,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:42:57,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:42:57,262 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 181 [2021-03-25 09:42:57,263 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 855 places, 919 transitions, 28504 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:57,263 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:42:57,263 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 181 [2021-03-25 09:42:57,263 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:42:58,765 INFO L129 PetriNetUnfolder]: 916/2324 cut-off events. [2021-03-25 09:42:58,765 INFO L130 PetriNetUnfolder]: For 259796/259809 co-relation queries the response was YES. [2021-03-25 09:42:58,825 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31121 conditions, 2324 events. 916/2324 cut-off events. For 259796/259809 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 19238 event pairs, 23 based on Foata normal form. 12/1972 useless extension candidates. Maximal degree in co-relation 30722. Up to 1211 conditions per place. [2021-03-25 09:42:58,837 INFO L132 encePairwiseOnDemand]: 160/181 looper letters, 828 selfloop transitions, 79 changer transitions 4/929 dead transitions. [2021-03-25 09:42:58,837 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 867 places, 929 transitions, 30504 flow [2021-03-25 09:42:58,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:42:58,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:42:58,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 724 transitions. [2021-03-25 09:42:58,838 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3076923076923077 [2021-03-25 09:42:58,838 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 724 transitions. [2021-03-25 09:42:58,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 724 transitions. [2021-03-25 09:42:58,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:42:58,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 724 transitions. [2021-03-25 09:42:58,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 55.69230769230769) internal successors, (724), 13 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:58,840 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 181.0) internal successors, (2534), 14 states have internal predecessors, (2534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:58,840 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 181.0) internal successors, (2534), 14 states have internal predecessors, (2534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:42:58,840 INFO L185 Difference]: Start difference. First operand has 855 places, 919 transitions, 28504 flow. Second operand 13 states and 724 transitions. [2021-03-25 09:42:58,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 867 places, 929 transitions, 30504 flow [2021-03-25 09:43:01,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 862 places, 929 transitions, 30223 flow, removed 93 selfloop flow, removed 5 redundant places. [2021-03-25 09:43:01,651 INFO L241 Difference]: Finished difference. Result has 863 places, 915 transitions, 28184 flow [2021-03-25 09:43:01,652 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=28223, PETRI_DIFFERENCE_MINUEND_PLACES=850, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=919, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=840, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=28184, PETRI_PLACES=863, PETRI_TRANSITIONS=915} [2021-03-25 09:43:01,652 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 802 predicate places. [2021-03-25 09:43:01,652 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:43:01,652 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 863 places, 915 transitions, 28184 flow [2021-03-25 09:43:01,652 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 863 places, 915 transitions, 28184 flow [2021-03-25 09:43:01,661 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 862 places, 915 transitions, 28184 flow [2021-03-25 09:43:02,361 INFO L129 PetriNetUnfolder]: 876/2261 cut-off events. [2021-03-25 09:43:02,361 INFO L130 PetriNetUnfolder]: For 266666/266702 co-relation queries the response was YES. [2021-03-25 09:43:02,421 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29235 conditions, 2261 events. 876/2261 cut-off events. For 266666/266702 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 19126 event pairs, 22 based on Foata normal form. 1/1901 useless extension candidates. Maximal degree in co-relation 28846. Up to 394 conditions per place. [2021-03-25 09:43:02,471 INFO L142 LiptonReduction]: Number of co-enabled transitions 4080 [2021-03-25 09:43:02,554 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:43:02,554 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:43:02,554 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 902 [2021-03-25 09:43:02,554 INFO L480 AbstractCegarLoop]: Abstraction has has 862 places, 915 transitions, 28184 flow [2021-03-25 09:43:02,554 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:02,554 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:43:02,555 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:43:02,555 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable326 [2021-03-25 09:43:02,555 INFO L428 AbstractCegarLoop]: === Iteration 328 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:43:02,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:43:02,555 INFO L82 PathProgramCache]: Analyzing trace with hash -1361993939, now seen corresponding path program 20 times [2021-03-25 09:43:02,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:43:02,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002712597] [2021-03-25 09:43:02,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:43:02,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:43:02,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:02,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:43:02,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:02,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:43:02,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:02,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:02,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:02,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:43:02,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:02,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:43:02,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:02,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:02,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:02,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:02,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:02,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:02,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:02,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:43:02,638 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:43:02,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:43:02,652 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:43:02,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:02,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:43:02,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002712597] [2021-03-25 09:43:02,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:43:02,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:43:02,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101841765] [2021-03-25 09:43:02,654 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:43:02,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:43:02,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:43:02,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:43:02,655 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 181 [2021-03-25 09:43:02,655 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 862 places, 915 transitions, 28184 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:02,655 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:43:02,655 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 181 [2021-03-25 09:43:02,655 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:43:04,182 INFO L129 PetriNetUnfolder]: 918/2327 cut-off events. [2021-03-25 09:43:04,182 INFO L130 PetriNetUnfolder]: For 259649/259653 co-relation queries the response was YES. [2021-03-25 09:43:04,247 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30992 conditions, 2327 events. 918/2327 cut-off events. For 259649/259653 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 19277 event pairs, 27 based on Foata normal form. 5/1964 useless extension candidates. Maximal degree in co-relation 30592. Up to 1200 conditions per place. [2021-03-25 09:43:04,260 INFO L132 encePairwiseOnDemand]: 165/181 looper letters, 828 selfloop transitions, 69 changer transitions 10/925 dead transitions. [2021-03-25 09:43:04,260 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 876 places, 925 transitions, 30200 flow [2021-03-25 09:43:04,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 09:43:04,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 09:43:04,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 812 transitions. [2021-03-25 09:43:04,262 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2990791896869245 [2021-03-25 09:43:04,262 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 812 transitions. [2021-03-25 09:43:04,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 812 transitions. [2021-03-25 09:43:04,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:43:04,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 812 transitions. [2021-03-25 09:43:04,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 54.13333333333333) internal successors, (812), 15 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:04,263 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 181.0) internal successors, (2896), 16 states have internal predecessors, (2896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:04,263 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 181.0) internal successors, (2896), 16 states have internal predecessors, (2896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:04,263 INFO L185 Difference]: Start difference. First operand has 862 places, 915 transitions, 28184 flow. Second operand 15 states and 812 transitions. [2021-03-25 09:43:04,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 876 places, 925 transitions, 30200 flow [2021-03-25 09:43:07,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 862 places, 925 transitions, 30018 flow, removed 2 selfloop flow, removed 14 redundant places. [2021-03-25 09:43:07,197 INFO L241 Difference]: Finished difference. Result has 864 places, 906 transitions, 28006 flow [2021-03-25 09:43:07,197 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=28002, PETRI_DIFFERENCE_MINUEND_PLACES=848, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=915, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=846, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=28006, PETRI_PLACES=864, PETRI_TRANSITIONS=906} [2021-03-25 09:43:07,197 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 803 predicate places. [2021-03-25 09:43:07,197 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:43:07,197 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 864 places, 906 transitions, 28006 flow [2021-03-25 09:43:07,197 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 864 places, 906 transitions, 28006 flow [2021-03-25 09:43:07,206 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 861 places, 906 transitions, 28006 flow [2021-03-25 09:43:08,036 INFO L129 PetriNetUnfolder]: 858/2208 cut-off events. [2021-03-25 09:43:08,037 INFO L130 PetriNetUnfolder]: For 257283/257286 co-relation queries the response was YES. [2021-03-25 09:43:08,083 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28777 conditions, 2208 events. 858/2208 cut-off events. For 257283/257286 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 18579 event pairs, 25 based on Foata normal form. 1/1863 useless extension candidates. Maximal degree in co-relation 28388. Up to 390 conditions per place. [2021-03-25 09:43:08,125 INFO L142 LiptonReduction]: Number of co-enabled transitions 3996 [2021-03-25 09:43:08,215 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:43:08,215 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:43:08,215 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1018 [2021-03-25 09:43:08,215 INFO L480 AbstractCegarLoop]: Abstraction has has 861 places, 906 transitions, 28006 flow [2021-03-25 09:43:08,215 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:08,215 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:43:08,215 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:43:08,215 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable327 [2021-03-25 09:43:08,215 INFO L428 AbstractCegarLoop]: === Iteration 329 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:43:08,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:43:08,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1759617073, now seen corresponding path program 17 times [2021-03-25 09:43:08,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:43:08,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176067356] [2021-03-25 09:43:08,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:43:08,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:43:08,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:08,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:43:08,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:08,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:43:08,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:08,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:08,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:08,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:43:08,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:08,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:08,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:08,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:08,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:08,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:08,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:08,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:08,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:08,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:43:08,285 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:43:08,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:43:08,301 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:43:08,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:08,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:43:08,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176067356] [2021-03-25 09:43:08,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:43:08,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:43:08,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556503209] [2021-03-25 09:43:08,304 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:43:08,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:43:08,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:43:08,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:43:08,305 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 181 [2021-03-25 09:43:08,305 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 861 places, 906 transitions, 28006 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:08,305 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:43:08,305 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 181 [2021-03-25 09:43:08,305 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:43:09,996 INFO L129 PetriNetUnfolder]: 908/2293 cut-off events. [2021-03-25 09:43:09,996 INFO L130 PetriNetUnfolder]: For 257358/257362 co-relation queries the response was YES. [2021-03-25 09:43:10,062 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30773 conditions, 2293 events. 908/2293 cut-off events. For 257358/257362 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 18919 event pairs, 27 based on Foata normal form. 5/1938 useless extension candidates. Maximal degree in co-relation 30373. Up to 1223 conditions per place. [2021-03-25 09:43:10,074 INFO L132 encePairwiseOnDemand]: 163/181 looper letters, 842 selfloop transitions, 46 changer transitions 5/911 dead transitions. [2021-03-25 09:43:10,074 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 874 places, 911 transitions, 29840 flow [2021-03-25 09:43:10,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:43:10,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:43:10,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 754 transitions. [2021-03-25 09:43:10,076 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2975532754538279 [2021-03-25 09:43:10,076 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 754 transitions. [2021-03-25 09:43:10,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 754 transitions. [2021-03-25 09:43:10,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:43:10,076 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 754 transitions. [2021-03-25 09:43:10,076 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 53.857142857142854) internal successors, (754), 14 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:10,077 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 181.0) internal successors, (2715), 15 states have internal predecessors, (2715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:10,077 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 181.0) internal successors, (2715), 15 states have internal predecessors, (2715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:10,077 INFO L185 Difference]: Start difference. First operand has 861 places, 906 transitions, 28006 flow. Second operand 14 states and 754 transitions. [2021-03-25 09:43:10,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 874 places, 911 transitions, 29840 flow [2021-03-25 09:43:13,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 852 places, 911 transitions, 29594 flow, removed 21 selfloop flow, removed 22 redundant places. [2021-03-25 09:43:13,071 INFO L241 Difference]: Finished difference. Result has 853 places, 901 transitions, 27677 flow [2021-03-25 09:43:13,071 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=27760, PETRI_DIFFERENCE_MINUEND_PLACES=839, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=906, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=860, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=27677, PETRI_PLACES=853, PETRI_TRANSITIONS=901} [2021-03-25 09:43:13,071 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 792 predicate places. [2021-03-25 09:43:13,071 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:43:13,071 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 853 places, 901 transitions, 27677 flow [2021-03-25 09:43:13,071 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 853 places, 901 transitions, 27677 flow [2021-03-25 09:43:13,081 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 850 places, 901 transitions, 27677 flow [2021-03-25 09:43:13,809 INFO L129 PetriNetUnfolder]: 862/2213 cut-off events. [2021-03-25 09:43:13,809 INFO L130 PetriNetUnfolder]: For 261367/261399 co-relation queries the response was YES. [2021-03-25 09:43:13,870 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28812 conditions, 2213 events. 862/2213 cut-off events. For 261367/261399 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 18573 event pairs, 26 based on Foata normal form. 0/1862 useless extension candidates. Maximal degree in co-relation 28430. Up to 390 conditions per place. [2021-03-25 09:43:13,922 INFO L142 LiptonReduction]: Number of co-enabled transitions 3952 [2021-03-25 09:43:14,170 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:43:14,170 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:43:14,170 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1099 [2021-03-25 09:43:14,170 INFO L480 AbstractCegarLoop]: Abstraction has has 849 places, 900 transitions, 27669 flow [2021-03-25 09:43:14,170 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:14,170 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:43:14,170 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:43:14,171 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable328 [2021-03-25 09:43:14,171 INFO L428 AbstractCegarLoop]: === Iteration 330 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:43:14,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:43:14,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1447335301, now seen corresponding path program 18 times [2021-03-25 09:43:14,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:43:14,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988651185] [2021-03-25 09:43:14,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:43:14,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:43:14,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:14,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:43:14,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:14,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:43:14,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:14,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:14,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:14,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:43:14,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:14,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:14,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:14,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:43:14,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:14,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:14,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:14,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:14,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:14,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:43:14,253 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:43:14,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:43:14,269 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:43:14,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:14,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:43:14,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988651185] [2021-03-25 09:43:14,272 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:43:14,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:43:14,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902508636] [2021-03-25 09:43:14,272 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:43:14,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:43:14,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:43:14,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:43:14,273 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 182 [2021-03-25 09:43:14,273 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 849 places, 900 transitions, 27669 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:14,273 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:43:14,273 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 182 [2021-03-25 09:43:14,273 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:43:15,919 INFO L129 PetriNetUnfolder]: 905/2296 cut-off events. [2021-03-25 09:43:15,919 INFO L130 PetriNetUnfolder]: For 257990/258005 co-relation queries the response was YES. [2021-03-25 09:43:15,985 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30543 conditions, 2296 events. 905/2296 cut-off events. For 257990/258005 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 18940 event pairs, 19 based on Foata normal form. 16/1953 useless extension candidates. Maximal degree in co-relation 30150. Up to 1191 conditions per place. [2021-03-25 09:43:15,998 INFO L132 encePairwiseOnDemand]: 161/182 looper letters, 810 selfloop transitions, 80 changer transitions 5/913 dead transitions. [2021-03-25 09:43:15,998 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 861 places, 913 transitions, 29656 flow [2021-03-25 09:43:15,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:43:15,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:43:16,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 725 transitions. [2021-03-25 09:43:16,000 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3064243448858833 [2021-03-25 09:43:16,000 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 725 transitions. [2021-03-25 09:43:16,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 725 transitions. [2021-03-25 09:43:16,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:43:16,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 725 transitions. [2021-03-25 09:43:16,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 55.76923076923077) internal successors, (725), 13 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:16,001 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 182.0) internal successors, (2548), 14 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:16,001 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 182.0) internal successors, (2548), 14 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:16,001 INFO L185 Difference]: Start difference. First operand has 849 places, 900 transitions, 27669 flow. Second operand 13 states and 725 transitions. [2021-03-25 09:43:16,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 861 places, 913 transitions, 29656 flow [2021-03-25 09:43:19,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 847 places, 913 transitions, 29462 flow, removed 14 selfloop flow, removed 14 redundant places. [2021-03-25 09:43:19,081 INFO L241 Difference]: Finished difference. Result has 851 places, 899 transitions, 27620 flow [2021-03-25 09:43:19,082 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=27475, PETRI_DIFFERENCE_MINUEND_PLACES=835, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=900, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=820, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=27620, PETRI_PLACES=851, PETRI_TRANSITIONS=899} [2021-03-25 09:43:19,082 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 790 predicate places. [2021-03-25 09:43:19,082 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:43:19,082 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 851 places, 899 transitions, 27620 flow [2021-03-25 09:43:19,082 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 851 places, 899 transitions, 27620 flow [2021-03-25 09:43:19,091 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 849 places, 899 transitions, 27620 flow [2021-03-25 09:43:19,809 INFO L129 PetriNetUnfolder]: 857/2210 cut-off events. [2021-03-25 09:43:19,809 INFO L130 PetriNetUnfolder]: For 248569/248572 co-relation queries the response was YES. [2021-03-25 09:43:19,870 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28529 conditions, 2210 events. 857/2210 cut-off events. For 248569/248572 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 18597 event pairs, 25 based on Foata normal form. 1/1863 useless extension candidates. Maximal degree in co-relation 28162. Up to 386 conditions per place. [2021-03-25 09:43:19,922 INFO L142 LiptonReduction]: Number of co-enabled transitions 3952 [2021-03-25 09:43:20,023 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:43:20,023 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:43:20,023 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 941 [2021-03-25 09:43:20,023 INFO L480 AbstractCegarLoop]: Abstraction has has 849 places, 899 transitions, 27620 flow [2021-03-25 09:43:20,023 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:20,023 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:43:20,023 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:43:20,023 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable329 [2021-03-25 09:43:20,023 INFO L428 AbstractCegarLoop]: === Iteration 331 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:43:20,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:43:20,024 INFO L82 PathProgramCache]: Analyzing trace with hash 474276207, now seen corresponding path program 1 times [2021-03-25 09:43:20,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:43:20,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144884100] [2021-03-25 09:43:20,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:43:20,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:43:20,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:20,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:43:20,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:20,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:43:20,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:20,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:20,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:20,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:43:20,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:20,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:20,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:20,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:20,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:20,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:20,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:20,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:43:20,077 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:43:20,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:43:20,088 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:43:20,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:20,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:43:20,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144884100] [2021-03-25 09:43:20,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:43:20,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:43:20,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828984930] [2021-03-25 09:43:20,091 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:43:20,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:43:20,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:43:20,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:43:20,091 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 182 [2021-03-25 09:43:20,091 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 849 places, 899 transitions, 27620 flow. Second operand has 9 states, 9 states have (on average 49.333333333333336) internal successors, (444), 9 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:20,091 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:43:20,091 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 182 [2021-03-25 09:43:20,091 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:43:21,710 INFO L129 PetriNetUnfolder]: 909/2293 cut-off events. [2021-03-25 09:43:21,711 INFO L130 PetriNetUnfolder]: For 257926/257930 co-relation queries the response was YES. [2021-03-25 09:43:21,765 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30688 conditions, 2293 events. 909/2293 cut-off events. For 257926/257930 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 18891 event pairs, 21 based on Foata normal form. 5/1936 useless extension candidates. Maximal degree in co-relation 30319. Up to 1128 conditions per place. [2021-03-25 09:43:21,778 INFO L132 encePairwiseOnDemand]: 164/182 looper letters, 731 selfloop transitions, 154 changer transitions 7/910 dead transitions. [2021-03-25 09:43:21,778 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 857 places, 910 transitions, 30092 flow [2021-03-25 09:43:21,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 09:43:21,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 09:43:21,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 524 transitions. [2021-03-25 09:43:21,780 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3199023199023199 [2021-03-25 09:43:21,780 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 524 transitions. [2021-03-25 09:43:21,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 524 transitions. [2021-03-25 09:43:21,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:43:21,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 524 transitions. [2021-03-25 09:43:21,780 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 58.22222222222222) internal successors, (524), 9 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:21,781 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:21,781 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:21,781 INFO L185 Difference]: Start difference. First operand has 849 places, 899 transitions, 27620 flow. Second operand 9 states and 524 transitions. [2021-03-25 09:43:21,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 857 places, 910 transitions, 30092 flow [2021-03-25 09:43:24,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 844 places, 910 transitions, 29832 flow, removed 27 selfloop flow, removed 13 redundant places. [2021-03-25 09:43:24,918 INFO L241 Difference]: Finished difference. Result has 846 places, 894 transitions, 27923 flow [2021-03-25 09:43:24,918 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=27364, PETRI_DIFFERENCE_MINUEND_PLACES=836, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=899, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=152, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=745, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=27923, PETRI_PLACES=846, PETRI_TRANSITIONS=894} [2021-03-25 09:43:24,919 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 785 predicate places. [2021-03-25 09:43:24,919 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:43:24,919 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 846 places, 894 transitions, 27923 flow [2021-03-25 09:43:24,919 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 846 places, 894 transitions, 27923 flow [2021-03-25 09:43:24,928 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 842 places, 894 transitions, 27923 flow [2021-03-25 09:43:25,654 INFO L129 PetriNetUnfolder]: 865/2217 cut-off events. [2021-03-25 09:43:25,654 INFO L130 PetriNetUnfolder]: For 258222/258225 co-relation queries the response was YES. [2021-03-25 09:43:25,721 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28816 conditions, 2217 events. 865/2217 cut-off events. For 258222/258225 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 18593 event pairs, 25 based on Foata normal form. 1/1863 useless extension candidates. Maximal degree in co-relation 28453. Up to 389 conditions per place. [2021-03-25 09:43:25,772 INFO L142 LiptonReduction]: Number of co-enabled transitions 3938 [2021-03-25 09:43:25,873 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:43:25,874 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:43:25,874 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 955 [2021-03-25 09:43:25,874 INFO L480 AbstractCegarLoop]: Abstraction has has 842 places, 894 transitions, 27923 flow [2021-03-25 09:43:25,874 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 49.333333333333336) internal successors, (444), 9 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:25,874 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:43:25,874 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:43:25,874 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable330 [2021-03-25 09:43:25,874 INFO L428 AbstractCegarLoop]: === Iteration 332 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:43:25,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:43:25,874 INFO L82 PathProgramCache]: Analyzing trace with hash 802675061, now seen corresponding path program 19 times [2021-03-25 09:43:25,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:43:25,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357410577] [2021-03-25 09:43:25,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:43:25,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:43:25,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:25,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:43:25,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:25,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:43:25,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:25,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:25,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:25,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:43:25,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:25,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:25,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:25,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:43:25,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:25,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:25,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:25,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:25,931 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 09:43:25,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:43:25,942 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:43:25,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:43:25,954 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:43:25,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:25,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:43:25,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357410577] [2021-03-25 09:43:25,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:43:25,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:43:25,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364489156] [2021-03-25 09:43:25,957 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:43:25,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:43:25,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:43:25,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:43:25,958 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 182 [2021-03-25 09:43:25,958 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 842 places, 894 transitions, 27923 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:25,958 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:43:25,958 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 182 [2021-03-25 09:43:25,958 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:43:27,508 INFO L129 PetriNetUnfolder]: 896/2255 cut-off events. [2021-03-25 09:43:27,508 INFO L130 PetriNetUnfolder]: For 257687/257691 co-relation queries the response was YES. [2021-03-25 09:43:27,566 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30677 conditions, 2255 events. 896/2255 cut-off events. For 257687/257691 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 18493 event pairs, 26 based on Foata normal form. 5/1910 useless extension candidates. Maximal degree in co-relation 30312. Up to 1184 conditions per place. [2021-03-25 09:43:27,578 INFO L132 encePairwiseOnDemand]: 161/182 looper letters, 794 selfloop transitions, 87 changer transitions 4/903 dead transitions. [2021-03-25 09:43:27,578 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 854 places, 903 transitions, 29783 flow [2021-03-25 09:43:27,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:43:27,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:43:27,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 723 transitions. [2021-03-25 09:43:27,579 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3055790363482671 [2021-03-25 09:43:27,579 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 723 transitions. [2021-03-25 09:43:27,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 723 transitions. [2021-03-25 09:43:27,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:43:27,580 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 723 transitions. [2021-03-25 09:43:27,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 55.61538461538461) internal successors, (723), 13 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:27,581 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 182.0) internal successors, (2548), 14 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:27,581 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 182.0) internal successors, (2548), 14 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:27,581 INFO L185 Difference]: Start difference. First operand has 842 places, 894 transitions, 27923 flow. Second operand 13 states and 723 transitions. [2021-03-25 09:43:27,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 854 places, 903 transitions, 29783 flow [2021-03-25 09:43:30,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 840 places, 903 transitions, 29263 flow, removed 74 selfloop flow, removed 14 redundant places. [2021-03-25 09:43:30,446 INFO L241 Difference]: Finished difference. Result has 841 places, 890 transitions, 27442 flow [2021-03-25 09:43:30,446 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=27403, PETRI_DIFFERENCE_MINUEND_PLACES=828, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=894, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=807, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=27442, PETRI_PLACES=841, PETRI_TRANSITIONS=890} [2021-03-25 09:43:30,446 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 780 predicate places. [2021-03-25 09:43:30,446 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:43:30,446 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 841 places, 890 transitions, 27442 flow [2021-03-25 09:43:30,446 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 841 places, 890 transitions, 27442 flow [2021-03-25 09:43:30,455 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 840 places, 890 transitions, 27442 flow [2021-03-25 09:43:31,096 INFO L129 PetriNetUnfolder]: 861/2207 cut-off events. [2021-03-25 09:43:31,096 INFO L130 PetriNetUnfolder]: For 248889/248891 co-relation queries the response was YES. [2021-03-25 09:43:31,152 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28402 conditions, 2207 events. 861/2207 cut-off events. For 248889/248891 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 18477 event pairs, 29 based on Foata normal form. 0/1855 useless extension candidates. Maximal degree in co-relation 28025. Up to 387 conditions per place. [2021-03-25 09:43:31,202 INFO L142 LiptonReduction]: Number of co-enabled transitions 3926 [2021-03-25 09:43:31,300 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:43:31,300 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:43:31,300 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 854 [2021-03-25 09:43:31,300 INFO L480 AbstractCegarLoop]: Abstraction has has 840 places, 890 transitions, 27442 flow [2021-03-25 09:43:31,300 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:31,301 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:43:31,301 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:43:31,301 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable331 [2021-03-25 09:43:31,301 INFO L428 AbstractCegarLoop]: === Iteration 333 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:43:31,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:43:31,301 INFO L82 PathProgramCache]: Analyzing trace with hash -37754025, now seen corresponding path program 20 times [2021-03-25 09:43:31,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:43:31,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101499368] [2021-03-25 09:43:31,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:43:31,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:43:31,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:31,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:43:31,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:31,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:43:31,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:31,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:31,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:31,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:43:31,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:31,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:31,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:31,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:43:31,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:31,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:43:31,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:31,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:31,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:31,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:43:31,375 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:43:31,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:43:31,388 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:43:31,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:31,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:43:31,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101499368] [2021-03-25 09:43:31,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:43:31,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:43:31,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082219706] [2021-03-25 09:43:31,391 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:43:31,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:43:31,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:43:31,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:43:31,392 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 182 [2021-03-25 09:43:31,392 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 840 places, 890 transitions, 27442 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:31,392 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:43:31,392 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 182 [2021-03-25 09:43:31,392 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:43:32,871 INFO L129 PetriNetUnfolder]: 891/2246 cut-off events. [2021-03-25 09:43:32,871 INFO L130 PetriNetUnfolder]: For 249364/249370 co-relation queries the response was YES. [2021-03-25 09:43:32,927 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30284 conditions, 2246 events. 891/2246 cut-off events. For 249364/249370 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 18371 event pairs, 21 based on Foata normal form. 7/1907 useless extension candidates. Maximal degree in co-relation 29896. Up to 1165 conditions per place. [2021-03-25 09:43:32,938 INFO L132 encePairwiseOnDemand]: 163/182 looper letters, 773 selfloop transitions, 103 changer transitions 6/900 dead transitions. [2021-03-25 09:43:32,938 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 851 places, 900 transitions, 29372 flow [2021-03-25 09:43:32,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:43:32,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:43:32,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 672 transitions. [2021-03-25 09:43:32,940 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3076923076923077 [2021-03-25 09:43:32,940 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 672 transitions. [2021-03-25 09:43:32,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 672 transitions. [2021-03-25 09:43:32,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:43:32,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 672 transitions. [2021-03-25 09:43:32,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 56.0) internal successors, (672), 12 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:32,941 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 182.0) internal successors, (2366), 13 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:32,941 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 182.0) internal successors, (2366), 13 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:32,941 INFO L185 Difference]: Start difference. First operand has 840 places, 890 transitions, 27442 flow. Second operand 12 states and 672 transitions. [2021-03-25 09:43:32,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 851 places, 900 transitions, 29372 flow [2021-03-25 09:43:35,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 835 places, 900 transitions, 29120 flow, removed 2 selfloop flow, removed 16 redundant places. [2021-03-25 09:43:35,477 INFO L241 Difference]: Finished difference. Result has 837 places, 885 transitions, 27323 flow [2021-03-25 09:43:35,478 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=27190, PETRI_DIFFERENCE_MINUEND_PLACES=824, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=890, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=787, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=27323, PETRI_PLACES=837, PETRI_TRANSITIONS=885} [2021-03-25 09:43:35,478 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 776 predicate places. [2021-03-25 09:43:35,478 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:43:35,478 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 837 places, 885 transitions, 27323 flow [2021-03-25 09:43:35,478 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 837 places, 885 transitions, 27323 flow [2021-03-25 09:43:35,487 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 835 places, 885 transitions, 27323 flow [2021-03-25 09:43:36,182 INFO L129 PetriNetUnfolder]: 856/2191 cut-off events. [2021-03-25 09:43:36,182 INFO L130 PetriNetUnfolder]: For 250212/250215 co-relation queries the response was YES. [2021-03-25 09:43:36,239 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28343 conditions, 2191 events. 856/2191 cut-off events. For 250212/250215 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 18289 event pairs, 21 based on Foata normal form. 1/1844 useless extension candidates. Maximal degree in co-relation 27966. Up to 387 conditions per place. [2021-03-25 09:43:36,288 INFO L142 LiptonReduction]: Number of co-enabled transitions 3902 [2021-03-25 09:43:36,372 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:43:36,372 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:43:36,372 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 894 [2021-03-25 09:43:36,373 INFO L480 AbstractCegarLoop]: Abstraction has has 835 places, 885 transitions, 27323 flow [2021-03-25 09:43:36,373 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:36,373 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:43:36,373 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:43:36,373 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable332 [2021-03-25 09:43:36,373 INFO L428 AbstractCegarLoop]: === Iteration 334 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:43:36,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:43:36,373 INFO L82 PathProgramCache]: Analyzing trace with hash 1379578581, now seen corresponding path program 21 times [2021-03-25 09:43:36,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:43:36,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521023801] [2021-03-25 09:43:36,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:43:36,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:43:36,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:36,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:43:36,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:36,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:43:36,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:36,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:36,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:36,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:43:36,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:36,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:43:36,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:36,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:36,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:36,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:36,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:36,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:36,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:36,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:43:36,475 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:43:36,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:43:36,491 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:43:36,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:36,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:43:36,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521023801] [2021-03-25 09:43:36,494 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:43:36,494 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:43:36,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41996760] [2021-03-25 09:43:36,494 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:43:36,494 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:43:36,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:43:36,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:43:36,494 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 182 [2021-03-25 09:43:36,495 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 835 places, 885 transitions, 27323 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:36,495 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:43:36,495 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 182 [2021-03-25 09:43:36,495 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:43:38,095 INFO L129 PetriNetUnfolder]: 892/2239 cut-off events. [2021-03-25 09:43:38,095 INFO L130 PetriNetUnfolder]: For 249267/249271 co-relation queries the response was YES. [2021-03-25 09:43:38,154 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30265 conditions, 2239 events. 892/2239 cut-off events. For 249267/249271 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 18318 event pairs, 27 based on Foata normal form. 5/1896 useless extension candidates. Maximal degree in co-relation 29877. Up to 1167 conditions per place. [2021-03-25 09:43:38,166 INFO L132 encePairwiseOnDemand]: 166/182 looper letters, 793 selfloop transitions, 85 changer transitions 0/896 dead transitions. [2021-03-25 09:43:38,166 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 849 places, 896 transitions, 29301 flow [2021-03-25 09:43:38,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 09:43:38,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 09:43:38,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 815 transitions. [2021-03-25 09:43:38,167 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.29853479853479853 [2021-03-25 09:43:38,168 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 815 transitions. [2021-03-25 09:43:38,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 815 transitions. [2021-03-25 09:43:38,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:43:38,168 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 815 transitions. [2021-03-25 09:43:38,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 54.333333333333336) internal successors, (815), 15 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:38,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 182.0) internal successors, (2912), 16 states have internal predecessors, (2912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:38,169 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 182.0) internal successors, (2912), 16 states have internal predecessors, (2912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:38,169 INFO L185 Difference]: Start difference. First operand has 835 places, 885 transitions, 27323 flow. Second operand 15 states and 815 transitions. [2021-03-25 09:43:38,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 849 places, 896 transitions, 29301 flow [2021-03-25 09:43:40,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 831 places, 896 transitions, 28985 flow, removed 6 selfloop flow, removed 18 redundant places. [2021-03-25 09:43:40,830 INFO L241 Difference]: Finished difference. Result has 833 places, 886 transitions, 27341 flow [2021-03-25 09:43:40,830 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=27009, PETRI_DIFFERENCE_MINUEND_PLACES=817, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=885, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=800, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=27341, PETRI_PLACES=833, PETRI_TRANSITIONS=886} [2021-03-25 09:43:40,830 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 772 predicate places. [2021-03-25 09:43:40,830 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:43:40,830 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 833 places, 886 transitions, 27341 flow [2021-03-25 09:43:40,831 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 833 places, 886 transitions, 27341 flow [2021-03-25 09:43:40,839 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 833 places, 886 transitions, 27341 flow [2021-03-25 09:43:41,493 INFO L129 PetriNetUnfolder]: 850/2181 cut-off events. [2021-03-25 09:43:41,493 INFO L130 PetriNetUnfolder]: For 249969/249972 co-relation queries the response was YES. [2021-03-25 09:43:41,549 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28227 conditions, 2181 events. 850/2181 cut-off events. For 249969/249972 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 18285 event pairs, 22 based on Foata normal form. 1/1839 useless extension candidates. Maximal degree in co-relation 27853. Up to 387 conditions per place. [2021-03-25 09:43:41,756 INFO L142 LiptonReduction]: Number of co-enabled transitions 3918 [2021-03-25 09:43:41,842 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:43:41,842 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:43:41,842 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1012 [2021-03-25 09:43:41,842 INFO L480 AbstractCegarLoop]: Abstraction has has 833 places, 886 transitions, 27341 flow [2021-03-25 09:43:41,842 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:41,842 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:43:41,842 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:43:41,842 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable333 [2021-03-25 09:43:41,842 INFO L428 AbstractCegarLoop]: === Iteration 335 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:43:41,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:43:41,843 INFO L82 PathProgramCache]: Analyzing trace with hash -1157689091, now seen corresponding path program 21 times [2021-03-25 09:43:41,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:43:41,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126753790] [2021-03-25 09:43:41,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:43:41,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:43:41,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:41,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:43:41,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:41,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:43:41,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:41,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:41,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:41,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:43:41,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:41,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:41,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:41,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:43:41,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:41,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:41,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:41,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:43:41,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:41,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:43:41,917 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:43:41,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:43:41,931 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:43:41,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:41,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:43:41,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126753790] [2021-03-25 09:43:41,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:43:41,933 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:43:41,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252070171] [2021-03-25 09:43:41,934 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:43:41,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:43:41,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:43:41,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:43:41,934 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 182 [2021-03-25 09:43:41,934 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 833 places, 886 transitions, 27341 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:41,934 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:43:41,934 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 182 [2021-03-25 09:43:41,935 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:43:43,400 INFO L129 PetriNetUnfolder]: 888/2234 cut-off events. [2021-03-25 09:43:43,400 INFO L130 PetriNetUnfolder]: For 247715/247719 co-relation queries the response was YES. [2021-03-25 09:43:43,458 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30165 conditions, 2234 events. 888/2234 cut-off events. For 247715/247719 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 18293 event pairs, 26 based on Foata normal form. 5/1894 useless extension candidates. Maximal degree in co-relation 29780. Up to 1192 conditions per place. [2021-03-25 09:43:43,469 INFO L132 encePairwiseOnDemand]: 161/182 looper letters, 816 selfloop transitions, 49 changer transitions 10/893 dead transitions. [2021-03-25 09:43:43,469 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 844 places, 893 transitions, 29169 flow [2021-03-25 09:43:43,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:43:43,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:43:43,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 660 transitions. [2021-03-25 09:43:43,471 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3021978021978022 [2021-03-25 09:43:43,471 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 660 transitions. [2021-03-25 09:43:43,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 660 transitions. [2021-03-25 09:43:43,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:43:43,471 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 660 transitions. [2021-03-25 09:43:43,471 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 55.0) internal successors, (660), 12 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:43,472 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 182.0) internal successors, (2366), 13 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:43,472 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 182.0) internal successors, (2366), 13 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:43,472 INFO L185 Difference]: Start difference. First operand has 833 places, 886 transitions, 27341 flow. Second operand 12 states and 660 transitions. [2021-03-25 09:43:43,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 844 places, 893 transitions, 29169 flow [2021-03-25 09:43:45,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 830 places, 893 transitions, 28866 flow, removed 61 selfloop flow, removed 14 redundant places. [2021-03-25 09:43:45,996 INFO L241 Difference]: Finished difference. Result has 831 places, 876 transitions, 26848 flow [2021-03-25 09:43:45,997 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=27038, PETRI_DIFFERENCE_MINUEND_PLACES=819, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=886, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=837, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=26848, PETRI_PLACES=831, PETRI_TRANSITIONS=876} [2021-03-25 09:43:45,997 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 770 predicate places. [2021-03-25 09:43:45,997 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:43:45,997 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 831 places, 876 transitions, 26848 flow [2021-03-25 09:43:45,997 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 831 places, 876 transitions, 26848 flow [2021-03-25 09:43:46,006 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 826 places, 876 transitions, 26848 flow [2021-03-25 09:43:46,627 INFO L129 PetriNetUnfolder]: 839/2142 cut-off events. [2021-03-25 09:43:46,627 INFO L130 PetriNetUnfolder]: For 249622/249627 co-relation queries the response was YES. [2021-03-25 09:43:46,681 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27914 conditions, 2142 events. 839/2142 cut-off events. For 249622/249627 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 17823 event pairs, 24 based on Foata normal form. 1/1809 useless extension candidates. Maximal degree in co-relation 27540. Up to 385 conditions per place. [2021-03-25 09:43:46,728 INFO L142 LiptonReduction]: Number of co-enabled transitions 3856 [2021-03-25 09:43:46,973 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 09:43:46,973 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:43:46,973 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 976 [2021-03-25 09:43:46,973 INFO L480 AbstractCegarLoop]: Abstraction has has 826 places, 876 transitions, 26856 flow [2021-03-25 09:43:46,973 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:46,973 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:43:46,973 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:43:46,973 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable334 [2021-03-25 09:43:46,973 INFO L428 AbstractCegarLoop]: === Iteration 336 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:43:46,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:43:46,974 INFO L82 PathProgramCache]: Analyzing trace with hash 547631939, now seen corresponding path program 22 times [2021-03-25 09:43:46,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:43:46,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791411042] [2021-03-25 09:43:46,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:43:46,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:43:46,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:46,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:43:46,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:46,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:43:46,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:46,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:47,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:47,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:43:47,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:47,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:47,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:47,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:43:47,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:47,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:43:47,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:47,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:47,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:47,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:43:47,050 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:43:47,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:43:47,055 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:43:47,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:47,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:43:47,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791411042] [2021-03-25 09:43:47,057 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:43:47,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 09:43:47,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235625265] [2021-03-25 09:43:47,057 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:43:47,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:43:47,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:43:47,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:43:47,058 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 183 [2021-03-25 09:43:47,058 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 826 places, 876 transitions, 26856 flow. Second operand has 9 states, 9 states have (on average 49.44444444444444) internal successors, (445), 9 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:47,058 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:43:47,058 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 183 [2021-03-25 09:43:47,058 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:43:48,557 INFO L129 PetriNetUnfolder]: 888/2225 cut-off events. [2021-03-25 09:43:48,558 INFO L130 PetriNetUnfolder]: For 257976/257991 co-relation queries the response was YES. [2021-03-25 09:43:48,611 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30399 conditions, 2225 events. 888/2225 cut-off events. For 257976/257991 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 18078 event pairs, 17 based on Foata normal form. 16/1899 useless extension candidates. Maximal degree in co-relation 30014. Up to 1187 conditions per place. [2021-03-25 09:43:48,623 INFO L132 encePairwiseOnDemand]: 165/183 looper letters, 804 selfloop transitions, 74 changer transitions 0/896 dead transitions. [2021-03-25 09:43:48,623 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 837 places, 896 transitions, 30031 flow [2021-03-25 09:43:48,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:43:48,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:43:48,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 666 transitions. [2021-03-25 09:43:48,625 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.30327868852459017 [2021-03-25 09:43:48,625 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 666 transitions. [2021-03-25 09:43:48,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 666 transitions. [2021-03-25 09:43:48,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:43:48,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 666 transitions. [2021-03-25 09:43:48,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 55.5) internal successors, (666), 12 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:48,626 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 183.0) internal successors, (2379), 13 states have internal predecessors, (2379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:48,626 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 183.0) internal successors, (2379), 13 states have internal predecessors, (2379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:48,626 INFO L185 Difference]: Start difference. First operand has 826 places, 876 transitions, 26856 flow. Second operand 12 states and 666 transitions. [2021-03-25 09:43:48,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 837 places, 896 transitions, 30031 flow [2021-03-25 09:43:51,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 822 places, 896 transitions, 29820 flow, removed 5 selfloop flow, removed 15 redundant places. [2021-03-25 09:43:51,224 INFO L241 Difference]: Finished difference. Result has 824 places, 890 transitions, 28071 flow [2021-03-25 09:43:51,224 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=26647, PETRI_DIFFERENCE_MINUEND_PLACES=811, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=876, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=812, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=28071, PETRI_PLACES=824, PETRI_TRANSITIONS=890} [2021-03-25 09:43:51,224 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 763 predicate places. [2021-03-25 09:43:51,224 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:43:51,224 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 824 places, 890 transitions, 28071 flow [2021-03-25 09:43:51,224 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 824 places, 890 transitions, 28071 flow [2021-03-25 09:43:51,233 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 824 places, 890 transitions, 28071 flow [2021-03-25 09:43:51,880 INFO L129 PetriNetUnfolder]: 856/2185 cut-off events. [2021-03-25 09:43:51,881 INFO L130 PetriNetUnfolder]: For 258565/258567 co-relation queries the response was YES. [2021-03-25 09:43:51,936 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28591 conditions, 2185 events. 856/2185 cut-off events. For 258565/258567 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 18237 event pairs, 16 based on Foata normal form. 0/1839 useless extension candidates. Maximal degree in co-relation 28219. Up to 394 conditions per place. [2021-03-25 09:43:51,984 INFO L142 LiptonReduction]: Number of co-enabled transitions 3906 [2021-03-25 09:43:52,225 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 09:43:52,225 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:43:52,225 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1001 [2021-03-25 09:43:52,225 INFO L480 AbstractCegarLoop]: Abstraction has has 824 places, 890 transitions, 28078 flow [2021-03-25 09:43:52,225 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 49.44444444444444) internal successors, (445), 9 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:52,225 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:43:52,225 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:43:52,225 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable335 [2021-03-25 09:43:52,225 INFO L428 AbstractCegarLoop]: === Iteration 337 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:43:52,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:43:52,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1412558818, now seen corresponding path program 1 times [2021-03-25 09:43:52,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:43:52,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737156285] [2021-03-25 09:43:52,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:43:52,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:43:52,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:52,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:43:52,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:52,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:43:52,242 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 09:43:52,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:43:52,248 INFO L142 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size [2021-03-25 09:43:52,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:52,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:52,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:43:52,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:52,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:52,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:52,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:52,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:52,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:52,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:52,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:43:52,322 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:43:52,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:43:52,339 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:43:52,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:52,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:43:52,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737156285] [2021-03-25 09:43:52,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:43:52,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:43:52,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431500733] [2021-03-25 09:43:52,341 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:43:52,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:43:52,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:43:52,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:43:52,342 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 184 [2021-03-25 09:43:52,342 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 824 places, 890 transitions, 28078 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:52,342 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:43:52,342 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 184 [2021-03-25 09:43:52,342 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:43:54,416 INFO L129 PetriNetUnfolder]: 899/2266 cut-off events. [2021-03-25 09:43:54,416 INFO L130 PetriNetUnfolder]: For 265146/265159 co-relation queries the response was YES. [2021-03-25 09:43:54,465 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30828 conditions, 2266 events. 899/2266 cut-off events. For 265146/265159 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 18559 event pairs, 16 based on Foata normal form. 14/1927 useless extension candidates. Maximal degree in co-relation 30445. Up to 1167 conditions per place. [2021-03-25 09:43:54,477 INFO L132 encePairwiseOnDemand]: 166/184 looper letters, 796 selfloop transitions, 94 changer transitions 6/914 dead transitions. [2021-03-25 09:43:54,477 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 842 places, 914 transitions, 30663 flow [2021-03-25 09:43:54,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-25 09:43:54,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-25 09:43:54,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1041 transitions. [2021-03-25 09:43:54,479 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.29776887871853547 [2021-03-25 09:43:54,479 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1041 transitions. [2021-03-25 09:43:54,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1041 transitions. [2021-03-25 09:43:54,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:43:54,479 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1041 transitions. [2021-03-25 09:43:54,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 54.78947368421053) internal successors, (1041), 19 states have internal predecessors, (1041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:54,481 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 184.0) internal successors, (3680), 20 states have internal predecessors, (3680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:54,481 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 184.0) internal successors, (3680), 20 states have internal predecessors, (3680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:54,481 INFO L185 Difference]: Start difference. First operand has 824 places, 890 transitions, 28078 flow. Second operand 19 states and 1041 transitions. [2021-03-25 09:43:54,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 842 places, 914 transitions, 30663 flow [2021-03-25 09:43:57,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 840 places, 914 transitions, 29557 flow, removed 547 selfloop flow, removed 2 redundant places. [2021-03-25 09:43:57,107 INFO L241 Difference]: Finished difference. Result has 844 places, 895 transitions, 27342 flow [2021-03-25 09:43:57,108 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=26972, PETRI_DIFFERENCE_MINUEND_PLACES=822, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=890, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=800, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=27342, PETRI_PLACES=844, PETRI_TRANSITIONS=895} [2021-03-25 09:43:57,108 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 783 predicate places. [2021-03-25 09:43:57,108 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:43:57,108 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 844 places, 895 transitions, 27342 flow [2021-03-25 09:43:57,108 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 844 places, 895 transitions, 27342 flow [2021-03-25 09:43:57,117 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 844 places, 895 transitions, 27342 flow [2021-03-25 09:43:57,780 INFO L129 PetriNetUnfolder]: 856/2197 cut-off events. [2021-03-25 09:43:57,780 INFO L130 PetriNetUnfolder]: For 254027/254033 co-relation queries the response was YES. [2021-03-25 09:43:57,837 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28123 conditions, 2197 events. 856/2197 cut-off events. For 254027/254033 co-relation queries the response was YES. Maximal size of possible extension queue 212. Compared 18425 event pairs, 19 based on Foata normal form. 4/1851 useless extension candidates. Maximal degree in co-relation 27746. Up to 384 conditions per place. [2021-03-25 09:43:57,885 INFO L142 LiptonReduction]: Number of co-enabled transitions 3986 [2021-03-25 09:43:57,976 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:43:57,977 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:43:57,977 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 869 [2021-03-25 09:43:57,977 INFO L480 AbstractCegarLoop]: Abstraction has has 844 places, 895 transitions, 27342 flow [2021-03-25 09:43:57,977 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:57,977 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:43:57,977 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:43:57,977 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable336 [2021-03-25 09:43:57,977 INFO L428 AbstractCegarLoop]: === Iteration 338 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:43:57,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:43:57,977 INFO L82 PathProgramCache]: Analyzing trace with hash -1057886803, now seen corresponding path program 16 times [2021-03-25 09:43:57,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:43:57,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238679372] [2021-03-25 09:43:57,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:43:57,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:43:57,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:57,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:43:57,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:57,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:43:57,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:57,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:43:58,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:58,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:58,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:58,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:43:58,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:58,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:43:58,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:58,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:43:58,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:58,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:58,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:43:58,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:43:58,077 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:43:58,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:43:58,093 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:43:58,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:43:58,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:43:58,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238679372] [2021-03-25 09:43:58,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:43:58,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:43:58,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916477196] [2021-03-25 09:43:58,096 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:43:58,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:43:58,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:43:58,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:43:58,096 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 184 [2021-03-25 09:43:58,097 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 844 places, 895 transitions, 27342 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:58,097 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:43:58,097 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 184 [2021-03-25 09:43:58,097 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:43:59,884 INFO L129 PetriNetUnfolder]: 908/2297 cut-off events. [2021-03-25 09:43:59,884 INFO L130 PetriNetUnfolder]: For 252922/252933 co-relation queries the response was YES. [2021-03-25 09:43:59,943 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30363 conditions, 2297 events. 908/2297 cut-off events. For 252922/252933 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 18958 event pairs, 23 based on Foata normal form. 13/1948 useless extension candidates. Maximal degree in co-relation 29975. Up to 1163 conditions per place. [2021-03-25 09:43:59,955 INFO L132 encePairwiseOnDemand]: 167/184 looper letters, 790 selfloop transitions, 105 changer transitions 9/922 dead transitions. [2021-03-25 09:43:59,955 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 863 places, 922 transitions, 29780 flow [2021-03-25 09:43:59,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-25 09:43:59,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-03-25 09:43:59,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1076 transitions. [2021-03-25 09:43:59,957 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.29239130434782606 [2021-03-25 09:43:59,957 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1076 transitions. [2021-03-25 09:43:59,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1076 transitions. [2021-03-25 09:43:59,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:43:59,957 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1076 transitions. [2021-03-25 09:43:59,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 53.8) internal successors, (1076), 20 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:59,959 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 184.0) internal successors, (3864), 21 states have internal predecessors, (3864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:59,959 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 184.0) internal successors, (3864), 21 states have internal predecessors, (3864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:43:59,959 INFO L185 Difference]: Start difference. First operand has 844 places, 895 transitions, 27342 flow. Second operand 20 states and 1076 transitions. [2021-03-25 09:43:59,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 863 places, 922 transitions, 29780 flow [2021-03-25 09:44:02,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 852 places, 922 transitions, 29596 flow, removed 54 selfloop flow, removed 11 redundant places. [2021-03-25 09:44:02,667 INFO L241 Difference]: Finished difference. Result has 858 places, 900 transitions, 27730 flow [2021-03-25 09:44:02,667 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=27203, PETRI_DIFFERENCE_MINUEND_PLACES=833, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=895, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=790, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=27730, PETRI_PLACES=858, PETRI_TRANSITIONS=900} [2021-03-25 09:44:02,667 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 797 predicate places. [2021-03-25 09:44:02,667 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:44:02,667 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 858 places, 900 transitions, 27730 flow [2021-03-25 09:44:02,668 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 858 places, 900 transitions, 27730 flow [2021-03-25 09:44:02,676 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 858 places, 900 transitions, 27730 flow [2021-03-25 09:44:03,349 INFO L129 PetriNetUnfolder]: 863/2223 cut-off events. [2021-03-25 09:44:03,349 INFO L130 PetriNetUnfolder]: For 252611/252613 co-relation queries the response was YES. [2021-03-25 09:44:03,408 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28398 conditions, 2223 events. 863/2223 cut-off events. For 252611/252613 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 18735 event pairs, 18 based on Foata normal form. 0/1866 useless extension candidates. Maximal degree in co-relation 28017. Up to 386 conditions per place. [2021-03-25 09:44:03,459 INFO L142 LiptonReduction]: Number of co-enabled transitions 4074 [2021-03-25 09:44:03,726 INFO L154 LiptonReduction]: Checked pairs total: 6 [2021-03-25 09:44:03,726 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:44:03,726 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1059 [2021-03-25 09:44:03,726 INFO L480 AbstractCegarLoop]: Abstraction has has 858 places, 900 transitions, 27735 flow [2021-03-25 09:44:03,726 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:03,727 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:44:03,727 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:44:03,727 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable337 [2021-03-25 09:44:03,727 INFO L428 AbstractCegarLoop]: === Iteration 339 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:44:03,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:44:03,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1946002431, now seen corresponding path program 23 times [2021-03-25 09:44:03,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:44:03,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417856203] [2021-03-25 09:44:03,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:44:03,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:44:03,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:03,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:44:03,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:03,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:44:03,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:03,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:44:03,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:03,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:44:03,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:03,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:44:03,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:03,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:44:03,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:03,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:44:03,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:03,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:44:03,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:03,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:44:03,801 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:44:03,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:44:03,815 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:44:03,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:44:03,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:44:03,818 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417856203] [2021-03-25 09:44:03,818 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:44:03,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:44:03,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592453776] [2021-03-25 09:44:03,818 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:44:03,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:44:03,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:44:03,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:44:03,819 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 185 [2021-03-25 09:44:03,819 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 858 places, 900 transitions, 27735 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:03,819 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:44:03,819 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 185 [2021-03-25 09:44:03,819 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:44:05,423 INFO L129 PetriNetUnfolder]: 899/2278 cut-off events. [2021-03-25 09:44:05,423 INFO L130 PetriNetUnfolder]: For 249058/249062 co-relation queries the response was YES. [2021-03-25 09:44:05,483 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30279 conditions, 2278 events. 899/2278 cut-off events. For 249058/249062 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 18766 event pairs, 24 based on Foata normal form. 5/1925 useless extension candidates. Maximal degree in co-relation 29887. Up to 1212 conditions per place. [2021-03-25 09:44:05,494 INFO L132 encePairwiseOnDemand]: 167/185 looper letters, 844 selfloop transitions, 39 changer transitions 5/906 dead transitions. [2021-03-25 09:44:05,494 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 872 places, 906 transitions, 29625 flow [2021-03-25 09:44:05,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 09:44:05,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 09:44:05,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 799 transitions. [2021-03-25 09:44:05,496 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.28792792792792793 [2021-03-25 09:44:05,496 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 799 transitions. [2021-03-25 09:44:05,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 799 transitions. [2021-03-25 09:44:05,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:44:05,496 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 799 transitions. [2021-03-25 09:44:05,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 53.266666666666666) internal successors, (799), 15 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:05,497 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 185.0) internal successors, (2960), 16 states have internal predecessors, (2960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:05,497 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 185.0) internal successors, (2960), 16 states have internal predecessors, (2960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:05,498 INFO L185 Difference]: Start difference. First operand has 858 places, 900 transitions, 27735 flow. Second operand 15 states and 799 transitions. [2021-03-25 09:44:05,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 872 places, 906 transitions, 29625 flow [2021-03-25 09:44:08,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 858 places, 906 transitions, 29258 flow, removed 102 selfloop flow, removed 14 redundant places. [2021-03-25 09:44:08,288 INFO L241 Difference]: Finished difference. Result has 859 places, 895 transitions, 27245 flow [2021-03-25 09:44:08,289 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=27370, PETRI_DIFFERENCE_MINUEND_PLACES=844, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=900, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=861, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=27245, PETRI_PLACES=859, PETRI_TRANSITIONS=895} [2021-03-25 09:44:08,289 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 798 predicate places. [2021-03-25 09:44:08,289 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:44:08,289 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 859 places, 895 transitions, 27245 flow [2021-03-25 09:44:08,289 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 859 places, 895 transitions, 27245 flow [2021-03-25 09:44:08,298 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 854 places, 895 transitions, 27245 flow [2021-03-25 09:44:08,963 INFO L129 PetriNetUnfolder]: 855/2196 cut-off events. [2021-03-25 09:44:08,964 INFO L130 PetriNetUnfolder]: For 248931/248933 co-relation queries the response was YES. [2021-03-25 09:44:09,022 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28109 conditions, 2196 events. 855/2196 cut-off events. For 248931/248933 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 18431 event pairs, 16 based on Foata normal form. 0/1847 useless extension candidates. Maximal degree in co-relation 27728. Up to 380 conditions per place. [2021-03-25 09:44:09,070 INFO L142 LiptonReduction]: Number of co-enabled transitions 4030 [2021-03-25 09:44:09,157 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:44:09,157 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:44:09,157 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 868 [2021-03-25 09:44:09,157 INFO L480 AbstractCegarLoop]: Abstraction has has 854 places, 895 transitions, 27245 flow [2021-03-25 09:44:09,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:09,158 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:44:09,158 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:44:09,158 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable338 [2021-03-25 09:44:09,158 INFO L428 AbstractCegarLoop]: === Iteration 340 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:44:09,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:44:09,158 INFO L82 PathProgramCache]: Analyzing trace with hash -720906782, now seen corresponding path program 1 times [2021-03-25 09:44:09,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:44:09,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783466440] [2021-03-25 09:44:09,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:44:09,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:44:09,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:09,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:44:09,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:09,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:44:09,174 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 09:44:09,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:44:09,180 INFO L142 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size [2021-03-25 09:44:09,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:44:09,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:09,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:44:09,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:09,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:44:09,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:09,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:44:09,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:09,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:44:09,241 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:44:09,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:44:09,256 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:44:09,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:44:09,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:44:09,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783466440] [2021-03-25 09:44:09,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:44:09,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:44:09,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892570176] [2021-03-25 09:44:09,258 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:44:09,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:44:09,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:44:09,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:44:09,259 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 185 [2021-03-25 09:44:09,259 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 854 places, 895 transitions, 27245 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:09,259 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:44:09,259 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 185 [2021-03-25 09:44:09,259 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:44:10,688 INFO L129 PetriNetUnfolder]: 889/2243 cut-off events. [2021-03-25 09:44:10,689 INFO L130 PetriNetUnfolder]: For 247368/247381 co-relation queries the response was YES. [2021-03-25 09:44:10,747 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29967 conditions, 2243 events. 889/2243 cut-off events. For 247368/247381 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 18346 event pairs, 19 based on Foata normal form. 10/1906 useless extension candidates. Maximal degree in co-relation 29575. Up to 1212 conditions per place. [2021-03-25 09:44:10,758 INFO L132 encePairwiseOnDemand]: 170/185 looper letters, 848 selfloop transitions, 28 changer transitions 9/903 dead transitions. [2021-03-25 09:44:10,759 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 865 places, 903 transitions, 29067 flow [2021-03-25 09:44:10,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:44:10,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:44:10,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 650 transitions. [2021-03-25 09:44:10,760 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2927927927927928 [2021-03-25 09:44:10,760 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 650 transitions. [2021-03-25 09:44:10,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 650 transitions. [2021-03-25 09:44:10,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:44:10,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 650 transitions. [2021-03-25 09:44:10,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 54.166666666666664) internal successors, (650), 12 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:10,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 185.0) internal successors, (2405), 13 states have internal predecessors, (2405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:10,761 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 185.0) internal successors, (2405), 13 states have internal predecessors, (2405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:10,761 INFO L185 Difference]: Start difference. First operand has 854 places, 895 transitions, 27245 flow. Second operand 12 states and 650 transitions. [2021-03-25 09:44:10,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 865 places, 903 transitions, 29067 flow [2021-03-25 09:44:13,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 853 places, 903 transitions, 28972 flow, removed 4 selfloop flow, removed 12 redundant places. [2021-03-25 09:44:13,363 INFO L241 Difference]: Finished difference. Result has 855 places, 888 transitions, 27068 flow [2021-03-25 09:44:13,363 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=27150, PETRI_DIFFERENCE_MINUEND_PLACES=842, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=895, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=867, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=27068, PETRI_PLACES=855, PETRI_TRANSITIONS=888} [2021-03-25 09:44:13,363 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 794 predicate places. [2021-03-25 09:44:13,363 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:44:13,363 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 855 places, 888 transitions, 27068 flow [2021-03-25 09:44:13,363 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 855 places, 888 transitions, 27068 flow [2021-03-25 09:44:13,372 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 848 places, 888 transitions, 27068 flow [2021-03-25 09:44:14,034 INFO L129 PetriNetUnfolder]: 844/2159 cut-off events. [2021-03-25 09:44:14,034 INFO L130 PetriNetUnfolder]: For 250011/250018 co-relation queries the response was YES. [2021-03-25 09:44:14,097 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27756 conditions, 2159 events. 844/2159 cut-off events. For 250011/250018 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 18026 event pairs, 19 based on Foata normal form. 3/1820 useless extension candidates. Maximal degree in co-relation 27375. Up to 378 conditions per place. [2021-03-25 09:44:14,262 INFO L142 LiptonReduction]: Number of co-enabled transitions 3956 [2021-03-25 09:44:14,351 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:44:14,351 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:44:14,351 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 988 [2021-03-25 09:44:14,351 INFO L480 AbstractCegarLoop]: Abstraction has has 848 places, 888 transitions, 27068 flow [2021-03-25 09:44:14,351 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:14,351 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:44:14,351 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:44:14,351 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable339 [2021-03-25 09:44:14,351 INFO L428 AbstractCegarLoop]: === Iteration 341 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:44:14,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:44:14,352 INFO L82 PathProgramCache]: Analyzing trace with hash 542272365, now seen corresponding path program 22 times [2021-03-25 09:44:14,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:44:14,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138600086] [2021-03-25 09:44:14,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:44:14,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:44:14,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:14,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:44:14,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:14,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:44:14,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:14,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:44:14,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:14,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:44:14,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:14,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:44:14,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:14,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:44:14,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:14,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:44:14,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:14,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:44:14,437 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:44:14,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:44:14,453 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:44:14,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:44:14,457 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-25 09:44:14,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:44:14,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:44:14,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138600086] [2021-03-25 09:44:14,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:44:14,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:44:14,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453191283] [2021-03-25 09:44:14,459 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:44:14,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:44:14,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:44:14,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:44:14,460 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 185 [2021-03-25 09:44:14,460 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 848 places, 888 transitions, 27068 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:14,460 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:44:14,460 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 185 [2021-03-25 09:44:14,460 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:44:15,910 INFO L129 PetriNetUnfolder]: 888/2237 cut-off events. [2021-03-25 09:44:15,910 INFO L130 PetriNetUnfolder]: For 250440/250446 co-relation queries the response was YES. [2021-03-25 09:44:15,968 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29931 conditions, 2237 events. 888/2237 cut-off events. For 250440/250446 co-relation queries the response was YES. Maximal size of possible extension queue 213. Compared 18228 event pairs, 18 based on Foata normal form. 7/1897 useless extension candidates. Maximal degree in co-relation 29539. Up to 1173 conditions per place. [2021-03-25 09:44:15,979 INFO L132 encePairwiseOnDemand]: 169/185 looper letters, 805 selfloop transitions, 74 changer transitions 2/899 dead transitions. [2021-03-25 09:44:15,979 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 861 places, 899 transitions, 29074 flow [2021-03-25 09:44:15,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:44:15,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:44:15,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 760 transitions. [2021-03-25 09:44:15,981 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.29343629343629346 [2021-03-25 09:44:15,981 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 760 transitions. [2021-03-25 09:44:15,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 760 transitions. [2021-03-25 09:44:15,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:44:15,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 760 transitions. [2021-03-25 09:44:15,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 54.285714285714285) internal successors, (760), 14 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:15,982 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 185.0) internal successors, (2775), 15 states have internal predecessors, (2775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:15,983 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 185.0) internal successors, (2775), 15 states have internal predecessors, (2775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:15,983 INFO L185 Difference]: Start difference. First operand has 848 places, 888 transitions, 27068 flow. Second operand 14 states and 760 transitions. [2021-03-25 09:44:15,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 861 places, 899 transitions, 29074 flow [2021-03-25 09:44:18,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 845 places, 899 transitions, 28923 flow, removed 11 selfloop flow, removed 16 redundant places. [2021-03-25 09:44:18,706 INFO L241 Difference]: Finished difference. Result has 847 places, 889 transitions, 27133 flow [2021-03-25 09:44:18,706 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=26919, PETRI_DIFFERENCE_MINUEND_PLACES=832, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=888, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=815, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=27133, PETRI_PLACES=847, PETRI_TRANSITIONS=889} [2021-03-25 09:44:18,706 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 786 predicate places. [2021-03-25 09:44:18,706 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:44:18,706 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 847 places, 889 transitions, 27133 flow [2021-03-25 09:44:18,706 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 847 places, 889 transitions, 27133 flow [2021-03-25 09:44:18,715 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 846 places, 889 transitions, 27133 flow [2021-03-25 09:44:19,346 INFO L129 PetriNetUnfolder]: 850/2172 cut-off events. [2021-03-25 09:44:19,346 INFO L130 PetriNetUnfolder]: For 249313/249315 co-relation queries the response was YES. [2021-03-25 09:44:19,401 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28035 conditions, 2172 events. 850/2172 cut-off events. For 249313/249315 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 18080 event pairs, 18 based on Foata normal form. 0/1828 useless extension candidates. Maximal degree in co-relation 27658. Up to 379 conditions per place. [2021-03-25 09:44:19,449 INFO L142 LiptonReduction]: Number of co-enabled transitions 3956 [2021-03-25 09:44:19,545 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:44:19,545 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:44:19,545 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 839 [2021-03-25 09:44:19,546 INFO L480 AbstractCegarLoop]: Abstraction has has 846 places, 889 transitions, 27133 flow [2021-03-25 09:44:19,546 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:19,546 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:44:19,546 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:44:19,546 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable340 [2021-03-25 09:44:19,546 INFO L428 AbstractCegarLoop]: === Iteration 342 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:44:19,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:44:19,546 INFO L82 PathProgramCache]: Analyzing trace with hash 470158337, now seen corresponding path program 17 times [2021-03-25 09:44:19,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:44:19,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948942676] [2021-03-25 09:44:19,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:44:19,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:44:19,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:19,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:44:19,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:19,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:44:19,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:19,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:44:19,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:19,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:44:19,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:19,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:44:19,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:19,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:44:19,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:19,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:44:19,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:19,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:44:19,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:19,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:44:19,635 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:44:19,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:44:19,651 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:44:19,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:44:19,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:44:19,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948942676] [2021-03-25 09:44:19,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:44:19,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:44:19,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716942616] [2021-03-25 09:44:19,654 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:44:19,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:44:19,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:44:19,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:44:19,654 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 185 [2021-03-25 09:44:19,654 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 846 places, 889 transitions, 27133 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:19,654 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:44:19,654 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 185 [2021-03-25 09:44:19,655 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:44:21,342 INFO L129 PetriNetUnfolder]: 892/2242 cut-off events. [2021-03-25 09:44:21,343 INFO L130 PetriNetUnfolder]: For 257574/257576 co-relation queries the response was YES. [2021-03-25 09:44:21,400 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30384 conditions, 2242 events. 892/2242 cut-off events. For 257574/257576 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 18351 event pairs, 22 based on Foata normal form. 3/1896 useless extension candidates. Maximal degree in co-relation 29996. Up to 1168 conditions per place. [2021-03-25 09:44:21,412 INFO L132 encePairwiseOnDemand]: 167/185 looper letters, 810 selfloop transitions, 79 changer transitions 0/907 dead transitions. [2021-03-25 09:44:21,412 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 862 places, 907 transitions, 29901 flow [2021-03-25 09:44:21,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-25 09:44:21,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-25 09:44:21,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 917 transitions. [2021-03-25 09:44:21,414 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2915739268680445 [2021-03-25 09:44:21,414 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 917 transitions. [2021-03-25 09:44:21,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 917 transitions. [2021-03-25 09:44:21,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:44:21,414 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 917 transitions. [2021-03-25 09:44:21,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 53.94117647058823) internal successors, (917), 17 states have internal predecessors, (917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:21,415 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 185.0) internal successors, (3330), 18 states have internal predecessors, (3330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:21,415 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 185.0) internal successors, (3330), 18 states have internal predecessors, (3330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:21,415 INFO L185 Difference]: Start difference. First operand has 846 places, 889 transitions, 27133 flow. Second operand 17 states and 917 transitions. [2021-03-25 09:44:21,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 862 places, 907 transitions, 29901 flow [2021-03-25 09:44:24,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 850 places, 907 transitions, 29759 flow, removed 5 selfloop flow, removed 12 redundant places. [2021-03-25 09:44:24,116 INFO L241 Difference]: Finished difference. Result has 852 places, 896 transitions, 28060 flow [2021-03-25 09:44:24,116 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=26991, PETRI_DIFFERENCE_MINUEND_PLACES=834, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=889, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=814, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=28060, PETRI_PLACES=852, PETRI_TRANSITIONS=896} [2021-03-25 09:44:24,116 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 791 predicate places. [2021-03-25 09:44:24,116 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:44:24,116 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 852 places, 896 transitions, 28060 flow [2021-03-25 09:44:24,116 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 852 places, 896 transitions, 28060 flow [2021-03-25 09:44:24,125 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 852 places, 896 transitions, 28060 flow [2021-03-25 09:44:24,791 INFO L129 PetriNetUnfolder]: 858/2199 cut-off events. [2021-03-25 09:44:24,791 INFO L130 PetriNetUnfolder]: For 268877/268879 co-relation queries the response was YES. [2021-03-25 09:44:24,852 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28482 conditions, 2199 events. 858/2199 cut-off events. For 268877/268879 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 18413 event pairs, 18 based on Foata normal form. 0/1847 useless extension candidates. Maximal degree in co-relation 28105. Up to 383 conditions per place. [2021-03-25 09:44:24,902 INFO L142 LiptonReduction]: Number of co-enabled transitions 4002 [2021-03-25 09:44:25,142 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 09:44:25,143 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:44:25,143 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1027 [2021-03-25 09:44:25,143 INFO L480 AbstractCegarLoop]: Abstraction has has 852 places, 896 transitions, 28175 flow [2021-03-25 09:44:25,143 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:25,143 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:44:25,143 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:44:25,143 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable341 [2021-03-25 09:44:25,143 INFO L428 AbstractCegarLoop]: === Iteration 343 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:44:25,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:44:25,143 INFO L82 PathProgramCache]: Analyzing trace with hash 384913713, now seen corresponding path program 24 times [2021-03-25 09:44:25,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:44:25,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500423362] [2021-03-25 09:44:25,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:44:25,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:44:25,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:25,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:44:25,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:25,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:44:25,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:25,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:44:25,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:25,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:44:25,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:25,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:44:25,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:25,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:44:25,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:25,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:44:25,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:25,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:44:25,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:25,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:44:25,234 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:44:25,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:44:25,248 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:44:25,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:44:25,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:44:25,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500423362] [2021-03-25 09:44:25,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:44:25,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 09:44:25,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422477923] [2021-03-25 09:44:25,251 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:44:25,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:44:25,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:44:25,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:44:25,252 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 186 [2021-03-25 09:44:25,252 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 852 places, 896 transitions, 28175 flow. Second operand has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:25,252 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:44:25,252 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 186 [2021-03-25 09:44:25,252 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:44:27,106 INFO L129 PetriNetUnfolder]: 909/2281 cut-off events. [2021-03-25 09:44:27,107 INFO L130 PetriNetUnfolder]: For 282285/282298 co-relation queries the response was YES. [2021-03-25 09:44:27,157 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31257 conditions, 2281 events. 909/2281 cut-off events. For 282285/282298 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 18722 event pairs, 18 based on Foata normal form. 15/1939 useless extension candidates. Maximal degree in co-relation 30869. Up to 1136 conditions per place. [2021-03-25 09:44:27,170 INFO L132 encePairwiseOnDemand]: 168/186 looper letters, 740 selfloop transitions, 151 changer transitions 11/920 dead transitions. [2021-03-25 09:44:27,170 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 863 places, 920 transitions, 31665 flow [2021-03-25 09:44:27,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:44:27,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:44:27,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 676 transitions. [2021-03-25 09:44:27,171 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.30286738351254483 [2021-03-25 09:44:27,171 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 676 transitions. [2021-03-25 09:44:27,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 676 transitions. [2021-03-25 09:44:27,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:44:27,172 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 676 transitions. [2021-03-25 09:44:27,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 56.333333333333336) internal successors, (676), 12 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:27,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 186.0) internal successors, (2418), 13 states have internal predecessors, (2418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:27,173 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 186.0) internal successors, (2418), 13 states have internal predecessors, (2418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:27,173 INFO L185 Difference]: Start difference. First operand has 852 places, 896 transitions, 28175 flow. Second operand 12 states and 676 transitions. [2021-03-25 09:44:27,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 863 places, 920 transitions, 31665 flow [2021-03-25 09:44:30,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 853 places, 920 transitions, 30665 flow, removed 450 selfloop flow, removed 10 redundant places. [2021-03-25 09:44:30,043 INFO L241 Difference]: Finished difference. Result has 854 places, 901 transitions, 28669 flow [2021-03-25 09:44:30,044 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=27175, PETRI_DIFFERENCE_MINUEND_PLACES=842, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=896, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=138, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=757, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=28669, PETRI_PLACES=854, PETRI_TRANSITIONS=901} [2021-03-25 09:44:30,044 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 793 predicate places. [2021-03-25 09:44:30,044 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:44:30,044 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 854 places, 901 transitions, 28669 flow [2021-03-25 09:44:30,044 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 854 places, 901 transitions, 28669 flow [2021-03-25 09:44:30,054 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 846 places, 901 transitions, 28669 flow [2021-03-25 09:44:30,725 INFO L129 PetriNetUnfolder]: 855/2178 cut-off events. [2021-03-25 09:44:30,726 INFO L130 PetriNetUnfolder]: For 267536/267538 co-relation queries the response was YES. [2021-03-25 09:44:30,782 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28925 conditions, 2178 events. 855/2178 cut-off events. For 267536/267538 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 18234 event pairs, 21 based on Foata normal form. 0/1837 useless extension candidates. Maximal degree in co-relation 28546. Up to 390 conditions per place. [2021-03-25 09:44:30,830 INFO L142 LiptonReduction]: Number of co-enabled transitions 4004 [2021-03-25 09:44:30,922 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:44:30,922 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:44:30,922 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 878 [2021-03-25 09:44:30,922 INFO L480 AbstractCegarLoop]: Abstraction has has 846 places, 901 transitions, 28669 flow [2021-03-25 09:44:30,923 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:30,923 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:44:30,923 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:44:30,923 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable342 [2021-03-25 09:44:30,923 INFO L428 AbstractCegarLoop]: === Iteration 344 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:44:30,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:44:30,923 INFO L82 PathProgramCache]: Analyzing trace with hash -806446821, now seen corresponding path program 19 times [2021-03-25 09:44:30,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:44:30,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249964685] [2021-03-25 09:44:30,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:44:30,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:44:30,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:30,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:44:30,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:30,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:44:30,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:30,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:44:30,948 INFO L142 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size [2021-03-25 09:44:30,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:44:30,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:30,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:44:30,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:30,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:44:30,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:30,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:44:30,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:30,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:44:31,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:31,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:44:31,027 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:44:31,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:44:31,044 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:44:31,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:44:31,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:44:31,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249964685] [2021-03-25 09:44:31,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:44:31,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 09:44:31,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745932657] [2021-03-25 09:44:31,047 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:44:31,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:44:31,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:44:31,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:44:31,048 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 186 [2021-03-25 09:44:31,048 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 846 places, 901 transitions, 28669 flow. Second operand has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:31,048 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:44:31,048 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 186 [2021-03-25 09:44:31,048 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:44:32,701 INFO L129 PetriNetUnfolder]: 932/2320 cut-off events. [2021-03-25 09:44:32,701 INFO L130 PetriNetUnfolder]: For 298787/298791 co-relation queries the response was YES. [2021-03-25 09:44:32,760 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32851 conditions, 2320 events. 932/2320 cut-off events. For 298787/298791 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 18989 event pairs, 24 based on Foata normal form. 5/1963 useless extension candidates. Maximal degree in co-relation 32461. Up to 1227 conditions per place. [2021-03-25 09:44:32,772 INFO L132 encePairwiseOnDemand]: 167/186 looper letters, 841 selfloop transitions, 83 changer transitions 0/942 dead transitions. [2021-03-25 09:44:32,772 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 862 places, 942 transitions, 33496 flow [2021-03-25 09:44:32,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-25 09:44:32,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-25 09:44:32,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 912 transitions. [2021-03-25 09:44:32,774 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2884250474383302 [2021-03-25 09:44:32,774 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 912 transitions. [2021-03-25 09:44:32,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 912 transitions. [2021-03-25 09:44:32,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:44:32,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 912 transitions. [2021-03-25 09:44:32,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 53.64705882352941) internal successors, (912), 17 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:32,775 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 186.0) internal successors, (3348), 18 states have internal predecessors, (3348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:32,775 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 186.0) internal successors, (3348), 18 states have internal predecessors, (3348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:32,775 INFO L185 Difference]: Start difference. First operand has 846 places, 901 transitions, 28669 flow. Second operand 17 states and 912 transitions. [2021-03-25 09:44:32,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 862 places, 942 transitions, 33496 flow [2021-03-25 09:44:35,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 855 places, 942 transitions, 32379 flow, removed 505 selfloop flow, removed 7 redundant places. [2021-03-25 09:44:35,871 INFO L241 Difference]: Finished difference. Result has 861 places, 929 transitions, 30067 flow [2021-03-25 09:44:35,872 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=27607, PETRI_DIFFERENCE_MINUEND_PLACES=839, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=901, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=832, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=30067, PETRI_PLACES=861, PETRI_TRANSITIONS=929} [2021-03-25 09:44:35,872 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 800 predicate places. [2021-03-25 09:44:35,872 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:44:35,872 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 861 places, 929 transitions, 30067 flow [2021-03-25 09:44:35,872 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 861 places, 929 transitions, 30067 flow [2021-03-25 09:44:35,882 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 861 places, 929 transitions, 30067 flow [2021-03-25 09:44:36,628 INFO L129 PetriNetUnfolder]: 896/2274 cut-off events. [2021-03-25 09:44:36,629 INFO L130 PetriNetUnfolder]: For 284959/284962 co-relation queries the response was YES. [2021-03-25 09:44:36,689 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30336 conditions, 2274 events. 896/2274 cut-off events. For 284959/284962 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 19108 event pairs, 16 based on Foata normal form. 1/1913 useless extension candidates. Maximal degree in co-relation 29951. Up to 405 conditions per place. [2021-03-25 09:44:36,740 INFO L142 LiptonReduction]: Number of co-enabled transitions 4128 [2021-03-25 09:44:37,014 INFO L154 LiptonReduction]: Checked pairs total: 5 [2021-03-25 09:44:37,014 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:44:37,014 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1142 [2021-03-25 09:44:37,014 INFO L480 AbstractCegarLoop]: Abstraction has has 861 places, 929 transitions, 30185 flow [2021-03-25 09:44:37,014 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 49.083333333333336) internal successors, (589), 12 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:37,014 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:44:37,015 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:44:37,015 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable343 [2021-03-25 09:44:37,015 INFO L428 AbstractCegarLoop]: === Iteration 345 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:44:37,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:44:37,015 INFO L82 PathProgramCache]: Analyzing trace with hash -457020392, now seen corresponding path program 1 times [2021-03-25 09:44:37,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:44:37,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729216697] [2021-03-25 09:44:37,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:44:37,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:44:37,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:37,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:44:37,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:37,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:44:37,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:37,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:44:37,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:37,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:44:37,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:37,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:44:37,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:37,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:44:37,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:37,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:44:37,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:37,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:44:37,090 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 09:44:37,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:44:37,104 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:44:37,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:44:37,120 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:44:37,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:44:37,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:44:37,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729216697] [2021-03-25 09:44:37,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:44:37,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:44:37,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093857238] [2021-03-25 09:44:37,123 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:44:37,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:44:37,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:44:37,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:44:37,123 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 187 [2021-03-25 09:44:37,123 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 861 places, 929 transitions, 30185 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:37,123 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:44:37,123 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 187 [2021-03-25 09:44:37,124 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:44:39,061 INFO L129 PetriNetUnfolder]: 983/2426 cut-off events. [2021-03-25 09:44:39,061 INFO L130 PetriNetUnfolder]: For 329039/329041 co-relation queries the response was YES. [2021-03-25 09:44:39,126 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35362 conditions, 2426 events. 983/2426 cut-off events. For 329039/329041 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 19939 event pairs, 28 based on Foata normal form. 3/2048 useless extension candidates. Maximal degree in co-relation 34966. Up to 1269 conditions per place. [2021-03-25 09:44:39,140 INFO L132 encePairwiseOnDemand]: 168/187 looper letters, 858 selfloop transitions, 100 changer transitions 5/981 dead transitions. [2021-03-25 09:44:39,140 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 877 places, 981 transitions, 36225 flow [2021-03-25 09:44:39,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-25 09:44:39,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-25 09:44:39,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 934 transitions. [2021-03-25 09:44:39,142 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2938030827304184 [2021-03-25 09:44:39,142 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 934 transitions. [2021-03-25 09:44:39,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 934 transitions. [2021-03-25 09:44:39,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:44:39,142 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 934 transitions. [2021-03-25 09:44:39,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 54.94117647058823) internal successors, (934), 17 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:39,143 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 187.0) internal successors, (3366), 18 states have internal predecessors, (3366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:39,144 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 187.0) internal successors, (3366), 18 states have internal predecessors, (3366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:39,144 INFO L185 Difference]: Start difference. First operand has 861 places, 929 transitions, 30185 flow. Second operand 17 states and 934 transitions. [2021-03-25 09:44:39,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 877 places, 981 transitions, 36225 flow [2021-03-25 09:44:42,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 871 places, 981 transitions, 34837 flow, removed 671 selfloop flow, removed 6 redundant places. [2021-03-25 09:44:42,529 INFO L241 Difference]: Finished difference. Result has 874 places, 966 transitions, 32737 flow [2021-03-25 09:44:42,529 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=28800, PETRI_DIFFERENCE_MINUEND_PLACES=855, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=929, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=858, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=32737, PETRI_PLACES=874, PETRI_TRANSITIONS=966} [2021-03-25 09:44:42,529 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 813 predicate places. [2021-03-25 09:44:42,529 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:44:42,529 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 874 places, 966 transitions, 32737 flow [2021-03-25 09:44:42,530 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 874 places, 966 transitions, 32737 flow [2021-03-25 09:44:42,540 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 874 places, 966 transitions, 32737 flow [2021-03-25 09:44:43,306 INFO L129 PetriNetUnfolder]: 925/2328 cut-off events. [2021-03-25 09:44:43,306 INFO L130 PetriNetUnfolder]: For 328107/328113 co-relation queries the response was YES. [2021-03-25 09:44:43,368 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32539 conditions, 2328 events. 925/2328 cut-off events. For 328107/328113 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 19583 event pairs, 18 based on Foata normal form. 4/1966 useless extension candidates. Maximal degree in co-relation 32150. Up to 437 conditions per place. [2021-03-25 09:44:43,421 INFO L142 LiptonReduction]: Number of co-enabled transitions 4252 [2021-03-25 09:44:43,769 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-25 09:44:43,769 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 09:44:43,769 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1240 [2021-03-25 09:44:43,769 INFO L480 AbstractCegarLoop]: Abstraction has has 874 places, 966 transitions, 32902 flow [2021-03-25 09:44:43,769 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:43,769 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:44:43,769 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:44:43,769 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable344 [2021-03-25 09:44:43,770 INFO L428 AbstractCegarLoop]: === Iteration 346 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:44:43,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:44:43,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1256373702, now seen corresponding path program 1 times [2021-03-25 09:44:43,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:44:43,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456529976] [2021-03-25 09:44:43,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:44:43,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:44:43,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:43,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:44:43,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:43,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:44:43,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:43,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:44:43,795 INFO L142 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size [2021-03-25 09:44:43,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:44:43,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:43,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:44:43,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:43,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:44:43,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:43,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:44:43,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:43,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:44:43,856 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:44:43,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:44:43,872 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:44:43,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:44:43,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:44:43,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456529976] [2021-03-25 09:44:43,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:44:43,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 09:44:43,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854053795] [2021-03-25 09:44:43,874 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:44:43,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:44:43,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:44:43,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:44:43,875 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 190 [2021-03-25 09:44:43,875 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 874 places, 966 transitions, 32902 flow. Second operand has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:43,875 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:44:43,875 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 190 [2021-03-25 09:44:43,875 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:44:45,857 INFO L129 PetriNetUnfolder]: 1000/2461 cut-off events. [2021-03-25 09:44:45,857 INFO L130 PetriNetUnfolder]: For 350852/350856 co-relation queries the response was YES. [2021-03-25 09:44:45,924 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36605 conditions, 2461 events. 1000/2461 cut-off events. For 350852/350856 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 20294 event pairs, 21 based on Foata normal form. 5/2082 useless extension candidates. Maximal degree in co-relation 36205. Up to 1294 conditions per place. [2021-03-25 09:44:45,938 INFO L132 encePairwiseOnDemand]: 169/190 looper letters, 878 selfloop transitions, 101 changer transitions 0/997 dead transitions. [2021-03-25 09:44:45,938 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 889 places, 997 transitions, 37669 flow [2021-03-25 09:44:45,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 09:44:45,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 09:44:45,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 883 transitions. [2021-03-25 09:44:45,940 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.29046052631578945 [2021-03-25 09:44:45,940 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 883 transitions. [2021-03-25 09:44:45,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 883 transitions. [2021-03-25 09:44:45,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:44:45,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 883 transitions. [2021-03-25 09:44:45,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 55.1875) internal successors, (883), 16 states have internal predecessors, (883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:45,942 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 190.0) internal successors, (3230), 17 states have internal predecessors, (3230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:45,942 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 190.0) internal successors, (3230), 17 states have internal predecessors, (3230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:45,942 INFO L185 Difference]: Start difference. First operand has 874 places, 966 transitions, 32902 flow. Second operand 16 states and 883 transitions. [2021-03-25 09:44:45,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 889 places, 997 transitions, 37669 flow [2021-03-25 09:44:49,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 885 places, 997 transitions, 35152 flow, removed 1222 selfloop flow, removed 4 redundant places. [2021-03-25 09:44:49,945 INFO L241 Difference]: Finished difference. Result has 887 places, 984 transitions, 32536 flow [2021-03-25 09:44:49,945 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=30385, PETRI_DIFFERENCE_MINUEND_PLACES=870, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=966, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=875, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=32536, PETRI_PLACES=887, PETRI_TRANSITIONS=984} [2021-03-25 09:44:49,945 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 826 predicate places. [2021-03-25 09:44:49,945 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:44:49,945 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 887 places, 984 transitions, 32536 flow [2021-03-25 09:44:49,945 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 887 places, 984 transitions, 32536 flow [2021-03-25 09:44:49,956 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 887 places, 984 transitions, 32536 flow [2021-03-25 09:44:50,745 INFO L129 PetriNetUnfolder]: 961/2404 cut-off events. [2021-03-25 09:44:50,746 INFO L130 PetriNetUnfolder]: For 326228/326230 co-relation queries the response was YES. [2021-03-25 09:44:50,810 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33218 conditions, 2404 events. 961/2404 cut-off events. For 326228/326230 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 20194 event pairs, 21 based on Foata normal form. 0/2024 useless extension candidates. Maximal degree in co-relation 32827. Up to 447 conditions per place. [2021-03-25 09:44:50,864 INFO L142 LiptonReduction]: Number of co-enabled transitions 4302 [2021-03-25 09:44:50,979 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:44:50,979 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:44:50,979 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1034 [2021-03-25 09:44:50,980 INFO L480 AbstractCegarLoop]: Abstraction has has 887 places, 984 transitions, 32536 flow [2021-03-25 09:44:50,980 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 49.09090909090909) internal successors, (540), 11 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:50,980 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:44:50,980 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:44:50,980 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable345 [2021-03-25 09:44:50,980 INFO L428 AbstractCegarLoop]: === Iteration 347 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:44:50,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:44:50,980 INFO L82 PathProgramCache]: Analyzing trace with hash 459881167, now seen corresponding path program 1 times [2021-03-25 09:44:50,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:44:50,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920442618] [2021-03-25 09:44:50,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:44:50,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:44:50,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:50,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:44:50,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:50,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:44:50,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:50,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:44:51,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:51,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:44:51,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:51,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:44:51,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:51,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:44:51,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:51,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:44:51,029 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 09:44:51,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:44:51,041 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:44:51,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:44:51,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:44:51,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920442618] [2021-03-25 09:44:51,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:44:51,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 09:44:51,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449308898] [2021-03-25 09:44:51,044 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 09:44:51,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:44:51,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 09:44:51,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-03-25 09:44:51,045 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 190 [2021-03-25 09:44:51,045 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 887 places, 984 transitions, 32536 flow. Second operand has 8 states, 8 states have (on average 49.375) internal successors, (395), 8 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:51,045 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:44:51,045 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 190 [2021-03-25 09:44:51,045 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:44:52,633 INFO L129 PetriNetUnfolder]: 1002/2465 cut-off events. [2021-03-25 09:44:52,634 INFO L130 PetriNetUnfolder]: For 338722/338737 co-relation queries the response was YES. [2021-03-25 09:44:52,700 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36039 conditions, 2465 events. 1002/2465 cut-off events. For 338722/338737 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 20280 event pairs, 16 based on Foata normal form. 16/2102 useless extension candidates. Maximal degree in co-relation 35637. Up to 1347 conditions per place. [2021-03-25 09:44:52,714 INFO L132 encePairwiseOnDemand]: 169/190 looper letters, 936 selfloop transitions, 49 changer transitions 0/1003 dead transitions. [2021-03-25 09:44:52,714 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 894 places, 1003 transitions, 35870 flow [2021-03-25 09:44:52,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 09:44:52,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 09:44:52,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 462 transitions. [2021-03-25 09:44:52,715 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.30394736842105263 [2021-03-25 09:44:52,715 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 462 transitions. [2021-03-25 09:44:52,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 462 transitions. [2021-03-25 09:44:52,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:44:52,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 462 transitions. [2021-03-25 09:44:52,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 57.75) internal successors, (462), 8 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:52,716 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 190.0) internal successors, (1710), 9 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:52,716 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 190.0) internal successors, (1710), 9 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:52,716 INFO L185 Difference]: Start difference. First operand has 887 places, 984 transitions, 32536 flow. Second operand 8 states and 462 transitions. [2021-03-25 09:44:52,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 894 places, 1003 transitions, 35870 flow [2021-03-25 09:44:56,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 886 places, 1003 transitions, 34497 flow, removed 652 selfloop flow, removed 8 redundant places. [2021-03-25 09:44:56,405 INFO L241 Difference]: Finished difference. Result has 889 places, 996 transitions, 32360 flow [2021-03-25 09:44:56,405 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=31167, PETRI_DIFFERENCE_MINUEND_PLACES=879, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=984, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=939, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=32360, PETRI_PLACES=889, PETRI_TRANSITIONS=996} [2021-03-25 09:44:56,405 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 828 predicate places. [2021-03-25 09:44:56,405 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:44:56,405 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 889 places, 996 transitions, 32360 flow [2021-03-25 09:44:56,406 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 889 places, 996 transitions, 32360 flow [2021-03-25 09:44:56,416 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 889 places, 996 transitions, 32360 flow [2021-03-25 09:44:57,216 INFO L129 PetriNetUnfolder]: 965/2414 cut-off events. [2021-03-25 09:44:57,216 INFO L130 PetriNetUnfolder]: For 328054/328064 co-relation queries the response was YES. [2021-03-25 09:44:57,283 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33141 conditions, 2414 events. 965/2414 cut-off events. For 328054/328064 co-relation queries the response was YES. Maximal size of possible extension queue 239. Compared 20310 event pairs, 16 based on Foata normal form. 8/2045 useless extension candidates. Maximal degree in co-relation 32746. Up to 445 conditions per place. [2021-03-25 09:44:57,339 INFO L142 LiptonReduction]: Number of co-enabled transitions 4318 [2021-03-25 09:44:57,462 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:44:57,462 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:44:57,462 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1057 [2021-03-25 09:44:57,463 INFO L480 AbstractCegarLoop]: Abstraction has has 889 places, 996 transitions, 32360 flow [2021-03-25 09:44:57,463 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 49.375) internal successors, (395), 8 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:57,463 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:44:57,463 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:44:57,463 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable346 [2021-03-25 09:44:57,463 INFO L428 AbstractCegarLoop]: === Iteration 348 === [thread4Err1INUSE_VIOLATION, thread4Thread1of1ForFork4Err5INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread4Thread1of1ForFork4Err6INUSE_VIOLATION, thread4Err9INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread1Thread1of1ForFork2Err3INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-25 09:44:57,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:44:57,463 INFO L82 PathProgramCache]: Analyzing trace with hash 1000302907, now seen corresponding path program 2 times [2021-03-25 09:44:57,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:44:57,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191055293] [2021-03-25 09:44:57,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:44:57,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:44:57,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:57,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:44:57,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:57,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:44:57,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:57,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:44:57,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:57,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:44:57,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:57,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:44:57,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:57,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:44:57,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:44:57,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:44:57,513 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:44:57,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:44:57,526 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 09:44:57,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:44:57,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:44:57,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191055293] [2021-03-25 09:44:57,528 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:44:57,528 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 09:44:57,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561540434] [2021-03-25 09:44:57,528 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 09:44:57,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:44:57,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 09:44:57,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-03-25 09:44:57,529 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 190 [2021-03-25 09:44:57,529 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 889 places, 996 transitions, 32360 flow. Second operand has 8 states, 8 states have (on average 49.375) internal successors, (395), 8 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:57,529 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:44:57,529 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 190 [2021-03-25 09:44:57,529 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:44:59,170 INFO L129 PetriNetUnfolder]: 1003/2473 cut-off events. [2021-03-25 09:44:59,170 INFO L130 PetriNetUnfolder]: For 321633/321637 co-relation queries the response was YES. [2021-03-25 09:44:59,238 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35210 conditions, 2473 events. 1003/2473 cut-off events. For 321633/321637 co-relation queries the response was YES. Maximal size of possible extension queue 251. Compared 20452 event pairs, 22 based on Foata normal form. 5/2097 useless extension candidates. Maximal degree in co-relation 34804. Up to 1354 conditions per place. [2021-03-25 09:44:59,251 INFO L132 encePairwiseOnDemand]: 171/190 looper letters, 936 selfloop transitions, 50 changer transitions 5/1009 dead transitions. [2021-03-25 09:44:59,251 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 896 places, 1009 transitions, 34837 flow [2021-03-25 09:44:59,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 09:44:59,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 09:44:59,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 469 transitions. [2021-03-25 09:44:59,253 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.30855263157894736 [2021-03-25 09:44:59,253 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 469 transitions. [2021-03-25 09:44:59,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 469 transitions. [2021-03-25 09:44:59,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:44:59,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 469 transitions. [2021-03-25 09:44:59,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.625) internal successors, (469), 8 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:59,254 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 190.0) internal successors, (1710), 9 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:59,254 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 190.0) internal successors, (1710), 9 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:44:59,254 INFO L185 Difference]: Start difference. First operand has 889 places, 996 transitions, 32360 flow. Second operand 8 states and 469 transitions. [2021-03-25 09:44:59,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 896 places, 1009 transitions, 34837 flow Received shutdown request... [2021-03-25 09:45:00,397 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable347 [2021-03-25 09:45:00,397 WARN L545 AbstractCegarLoop]: Verification canceled [2021-03-25 09:45:00,400 WARN L224 ceAbstractionStarter]: Timeout [2021-03-25 09:45:00,400 INFO L202 PluginConnector]: Adding new model barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 09:45:00 BasicIcfg [2021-03-25 09:45:00,400 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 09:45:00,400 INFO L168 Benchmark]: Toolchain (without parser) took 859647.72 ms. Allocated memory was 364.9 MB in the beginning and 2.8 GB in the end (delta: 2.5 GB). Free memory was 344.4 MB in the beginning and 1.1 GB in the end (delta: -755.7 MB). Peak memory consumption was 1.7 GB. Max. memory is 16.0 GB. [2021-03-25 09:45:00,400 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.44 ms. Allocated memory is still 364.9 MB. Free memory was 345.6 MB in the beginning and 345.6 MB in the end (delta: 76.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 09:45:00,400 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.36 ms. Allocated memory is still 364.9 MB. Free memory was 344.3 MB in the beginning and 342.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 09:45:00,401 INFO L168 Benchmark]: Boogie Preprocessor took 11.04 ms. Allocated memory is still 364.9 MB. Free memory was 342.8 MB in the beginning and 341.9 MB in the end (delta: 980.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 09:45:00,401 INFO L168 Benchmark]: RCFGBuilder took 289.00 ms. Allocated memory is still 364.9 MB. Free memory was 341.8 MB in the beginning and 327.8 MB in the end (delta: 14.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-03-25 09:45:00,401 INFO L168 Benchmark]: TraceAbstraction took 859322.79 ms. Allocated memory was 364.9 MB in the beginning and 2.8 GB in the end (delta: 2.5 GB). Free memory was 327.3 MB in the beginning and 1.1 GB in the end (delta: -772.8 MB). Peak memory consumption was 1.7 GB. Max. memory is 16.0 GB. [2021-03-25 09:45:00,401 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.44 ms. Allocated memory is still 364.9 MB. Free memory was 345.6 MB in the beginning and 345.6 MB in the end (delta: 76.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 20.36 ms. Allocated memory is still 364.9 MB. Free memory was 344.3 MB in the beginning and 342.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 11.04 ms. Allocated memory is still 364.9 MB. Free memory was 342.8 MB in the beginning and 341.9 MB in the end (delta: 980.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 289.00 ms. Allocated memory is still 364.9 MB. Free memory was 341.8 MB in the beginning and 327.8 MB in the end (delta: 14.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 859322.79 ms. Allocated memory was 364.9 MB in the beginning and 2.8 GB in the end (delta: 2.5 GB). Free memory was 327.3 MB in the beginning and 1.1 GB in the end (delta: -772.8 MB). Peak memory consumption was 1.7 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 99.5ms, 66 PlacesBefore, 61 PlacesAfterwards, 51 TransitionsBefore, 46 TransitionsAfterwards, 1336 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 2462 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1044, positive: 966, positive conditional: 0, positive unconditional: 966, negative: 78, negative conditional: 0, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 398, positive: 374, positive conditional: 0, positive unconditional: 374, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 398, positive: 374, positive conditional: 0, positive unconditional: 374, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1044, positive: 592, positive conditional: 0, positive unconditional: 592, negative: 54, negative conditional: 0, negative unconditional: 54, unknown: 398, unknown conditional: 0, unknown unconditional: 398] , Statistics on independence cache: Total cache size (in pairs): 250, Positive cache size: 234, Positive conditional cache size: 0, Positive unconditional cache size: 234, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 89.4ms, 52 PlacesBefore, 48 PlacesAfterwards, 46 TransitionsBefore, 42 TransitionsAfterwards, 1078 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 2408 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1147, positive: 1061, positive conditional: 0, positive unconditional: 1061, negative: 86, negative conditional: 0, negative unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 128, positive: 128, positive conditional: 0, positive unconditional: 128, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 128, positive: 128, positive conditional: 0, positive unconditional: 128, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1147, positive: 933, positive conditional: 0, positive unconditional: 933, negative: 86, negative conditional: 0, negative unconditional: 86, unknown: 128, unknown conditional: 0, unknown unconditional: 128] , Statistics on independence cache: Total cache size (in pairs): 237, Positive cache size: 225, Positive conditional cache size: 0, Positive unconditional cache size: 225, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 75.6ms, 49 PlacesBefore, 45 PlacesAfterwards, 42 TransitionsBefore, 38 TransitionsAfterwards, 856 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 1433 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 729, positive: 673, positive conditional: 0, positive unconditional: 673, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 43, positive: 43, positive conditional: 0, positive unconditional: 43, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 43, positive: 43, positive conditional: 0, positive unconditional: 43, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 729, positive: 630, positive conditional: 0, positive unconditional: 630, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 43, unknown conditional: 0, unknown unconditional: 43] , Statistics on independence cache: Total cache size (in pairs): 177, Positive cache size: 169, Positive conditional cache size: 0, Positive unconditional cache size: 169, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 66.9ms, 45 PlacesBefore, 41 PlacesAfterwards, 38 TransitionsBefore, 34 TransitionsAfterwards, 648 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 687 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 468, positive: 438, positive conditional: 0, positive unconditional: 438, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 42, positive: 42, positive conditional: 0, positive unconditional: 42, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 42, positive: 42, positive conditional: 0, positive unconditional: 42, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 468, positive: 396, positive conditional: 0, positive unconditional: 396, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 42, unknown conditional: 0, unknown unconditional: 42] , Statistics on independence cache: Total cache size (in pairs): 112, Positive cache size: 108, Positive conditional cache size: 0, Positive unconditional cache size: 108, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 95.1ms, 58 PlacesBefore, 58 PlacesAfterwards, 84 TransitionsBefore, 84 TransitionsAfterwards, 950 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 727 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 409, positive: 388, positive conditional: 0, positive unconditional: 388, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 409, positive: 382, positive conditional: 0, positive unconditional: 382, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 113, Positive cache size: 112, Positive conditional cache size: 0, Positive unconditional cache size: 112, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 97.1ms, 60 PlacesBefore, 59 PlacesAfterwards, 82 TransitionsBefore, 81 TransitionsAfterwards, 734 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 127 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 127, positive: 127, positive conditional: 0, positive unconditional: 127, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 127, positive: 127, positive conditional: 0, positive unconditional: 127, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 47.0ms, 69 PlacesBefore, 69 PlacesAfterwards, 94 TransitionsBefore, 94 TransitionsAfterwards, 730 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 14 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 14, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 14, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.0ms, 77 PlacesBefore, 71 PlacesAfterwards, 83 TransitionsBefore, 83 TransitionsAfterwards, 580 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 55.6ms, 73 PlacesBefore, 73 PlacesAfterwards, 102 TransitionsBefore, 102 TransitionsAfterwards, 720 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 71.4ms, 85 PlacesBefore, 85 PlacesAfterwards, 122 TransitionsBefore, 122 TransitionsAfterwards, 846 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 8 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 69, Positive cache size: 69, Positive conditional cache size: 0, Positive unconditional cache size: 69, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 56.8ms, 102 PlacesBefore, 100 PlacesAfterwards, 148 TransitionsBefore, 147 TransitionsAfterwards, 924 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 32 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 32, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 32, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 53, Positive cache size: 53, Positive conditional cache size: 0, Positive unconditional cache size: 53, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.5ms, 112 PlacesBefore, 112 PlacesAfterwards, 153 TransitionsBefore, 153 TransitionsAfterwards, 958 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 53, Positive cache size: 53, Positive conditional cache size: 0, Positive unconditional cache size: 53, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38.9ms, 119 PlacesBefore, 117 PlacesAfterwards, 169 TransitionsBefore, 169 TransitionsAfterwards, 974 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 53, Positive cache size: 53, Positive conditional cache size: 0, Positive unconditional cache size: 53, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 44.3ms, 132 PlacesBefore, 132 PlacesAfterwards, 191 TransitionsBefore, 191 TransitionsAfterwards, 1094 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 53, Positive cache size: 53, Positive conditional cache size: 0, Positive unconditional cache size: 53, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 70.6ms, 140 PlacesBefore, 140 PlacesAfterwards, 201 TransitionsBefore, 201 TransitionsAfterwards, 1166 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 53, Positive cache size: 53, Positive conditional cache size: 0, Positive unconditional cache size: 53, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 56.8ms, 144 PlacesBefore, 144 PlacesAfterwards, 209 TransitionsBefore, 209 TransitionsAfterwards, 1270 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 53, Positive cache size: 53, Positive conditional cache size: 0, Positive unconditional cache size: 53, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 81.4ms, 152 PlacesBefore, 152 PlacesAfterwards, 212 TransitionsBefore, 212 TransitionsAfterwards, 1314 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 53, Positive cache size: 53, Positive conditional cache size: 0, Positive unconditional cache size: 53, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 58.3ms, 159 PlacesBefore, 159 PlacesAfterwards, 208 TransitionsBefore, 208 TransitionsAfterwards, 1272 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 53, Positive cache size: 53, Positive conditional cache size: 0, Positive unconditional cache size: 53, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 62.3ms, 163 PlacesBefore, 163 PlacesAfterwards, 231 TransitionsBefore, 231 TransitionsAfterwards, 1408 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 53, Positive cache size: 53, Positive conditional cache size: 0, Positive unconditional cache size: 53, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 70.3ms, 172 PlacesBefore, 171 PlacesAfterwards, 237 TransitionsBefore, 237 TransitionsAfterwards, 1410 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 53, Positive cache size: 53, Positive conditional cache size: 0, Positive unconditional cache size: 53, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 55.4ms, 175 PlacesBefore, 166 PlacesAfterwards, 201 TransitionsBefore, 201 TransitionsAfterwards, 954 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 53, Positive cache size: 53, Positive conditional cache size: 0, Positive unconditional cache size: 53, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 68.0ms, 148 PlacesBefore, 148 PlacesAfterwards, 217 TransitionsBefore, 217 TransitionsAfterwards, 986 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 53, Positive cache size: 53, Positive conditional cache size: 0, Positive unconditional cache size: 53, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 54.1ms, 153 PlacesBefore, 153 PlacesAfterwards, 225 TransitionsBefore, 225 TransitionsAfterwards, 1012 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 53, Positive cache size: 53, Positive conditional cache size: 0, Positive unconditional cache size: 53, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 56.0ms, 160 PlacesBefore, 159 PlacesAfterwards, 223 TransitionsBefore, 223 TransitionsAfterwards, 1012 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 53, Positive cache size: 53, Positive conditional cache size: 0, Positive unconditional cache size: 53, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 53.1ms, 158 PlacesBefore, 154 PlacesAfterwards, 220 TransitionsBefore, 220 TransitionsAfterwards, 984 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 53, Positive cache size: 53, Positive conditional cache size: 0, Positive unconditional cache size: 53, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 56.6ms, 156 PlacesBefore, 154 PlacesAfterwards, 218 TransitionsBefore, 218 TransitionsAfterwards, 974 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 53, Positive cache size: 53, Positive conditional cache size: 0, Positive unconditional cache size: 53, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 49.8ms, 155 PlacesBefore, 154 PlacesAfterwards, 217 TransitionsBefore, 217 TransitionsAfterwards, 974 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 53, Positive cache size: 53, Positive conditional cache size: 0, Positive unconditional cache size: 53, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 49.7ms, 157 PlacesBefore, 157 PlacesAfterwards, 228 TransitionsBefore, 228 TransitionsAfterwards, 1026 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 53, Positive cache size: 53, Positive conditional cache size: 0, Positive unconditional cache size: 53, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 55.5ms, 163 PlacesBefore, 163 PlacesAfterwards, 231 TransitionsBefore, 231 TransitionsAfterwards, 1062 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 53, Positive cache size: 53, Positive conditional cache size: 0, Positive unconditional cache size: 53, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 49.8ms, 169 PlacesBefore, 165 PlacesAfterwards, 218 TransitionsBefore, 218 TransitionsAfterwards, 954 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 53, Positive cache size: 53, Positive conditional cache size: 0, Positive unconditional cache size: 53, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 91.1ms, 158 PlacesBefore, 158 PlacesAfterwards, 226 TransitionsBefore, 226 TransitionsAfterwards, 1002 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 53, Positive cache size: 53, Positive conditional cache size: 0, Positive unconditional cache size: 53, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 95.9ms, 169 PlacesBefore, 168 PlacesAfterwards, 239 TransitionsBefore, 239 TransitionsAfterwards, 1002 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 57, Positive cache size: 57, Positive conditional cache size: 0, Positive unconditional cache size: 57, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 96.0ms, 176 PlacesBefore, 176 PlacesAfterwards, 248 TransitionsBefore, 248 TransitionsAfterwards, 1048 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 89.5ms, 184 PlacesBefore, 184 PlacesAfterwards, 255 TransitionsBefore, 255 TransitionsAfterwards, 1094 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 69.2ms, 197 PlacesBefore, 197 PlacesAfterwards, 269 TransitionsBefore, 269 TransitionsAfterwards, 1146 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 70.8ms, 204 PlacesBefore, 204 PlacesAfterwards, 272 TransitionsBefore, 272 TransitionsAfterwards, 1170 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 84.3ms, 206 PlacesBefore, 205 PlacesAfterwards, 274 TransitionsBefore, 274 TransitionsAfterwards, 1170 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 109.2ms, 214 PlacesBefore, 214 PlacesAfterwards, 280 TransitionsBefore, 280 TransitionsAfterwards, 1230 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 74.1ms, 221 PlacesBefore, 221 PlacesAfterwards, 276 TransitionsBefore, 276 TransitionsAfterwards, 1190 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 75.4ms, 218 PlacesBefore, 212 PlacesAfterwards, 276 TransitionsBefore, 276 TransitionsAfterwards, 1156 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 86.7ms, 219 PlacesBefore, 219 PlacesAfterwards, 305 TransitionsBefore, 305 TransitionsAfterwards, 1230 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 119.6ms, 228 PlacesBefore, 228 PlacesAfterwards, 314 TransitionsBefore, 314 TransitionsAfterwards, 1308 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 5 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 62, Positive conditional cache size: 0, Positive unconditional cache size: 62, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 90.2ms, 237 PlacesBefore, 233 PlacesAfterwards, 310 TransitionsBefore, 310 TransitionsAfterwards, 1288 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 62, Positive conditional cache size: 0, Positive unconditional cache size: 62, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 97.5ms, 232 PlacesBefore, 232 PlacesAfterwards, 321 TransitionsBefore, 321 TransitionsAfterwards, 1330 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 62, Positive conditional cache size: 0, Positive unconditional cache size: 62, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 96.8ms, 242 PlacesBefore, 241 PlacesAfterwards, 322 TransitionsBefore, 322 TransitionsAfterwards, 1330 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 62, Positive conditional cache size: 0, Positive unconditional cache size: 62, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 100.1ms, 249 PlacesBefore, 249 PlacesAfterwards, 325 TransitionsBefore, 325 TransitionsAfterwards, 1354 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 62, Positive conditional cache size: 0, Positive unconditional cache size: 62, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 114.4ms, 253 PlacesBefore, 252 PlacesAfterwards, 324 TransitionsBefore, 324 TransitionsAfterwards, 1354 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 62, Positive conditional cache size: 0, Positive unconditional cache size: 62, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 112.4ms, 257 PlacesBefore, 257 PlacesAfterwards, 346 TransitionsBefore, 346 TransitionsAfterwards, 1500 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 62, Positive conditional cache size: 0, Positive unconditional cache size: 62, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 116.5ms, 270 PlacesBefore, 270 PlacesAfterwards, 351 TransitionsBefore, 351 TransitionsAfterwards, 1564 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 62, Positive conditional cache size: 0, Positive unconditional cache size: 62, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 115.0ms, 277 PlacesBefore, 277 PlacesAfterwards, 346 TransitionsBefore, 346 TransitionsAfterwards, 1540 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 62, Positive conditional cache size: 0, Positive unconditional cache size: 62, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 114.7ms, 280 PlacesBefore, 278 PlacesAfterwards, 345 TransitionsBefore, 345 TransitionsAfterwards, 1540 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 62, Positive conditional cache size: 0, Positive unconditional cache size: 62, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 114.4ms, 278 PlacesBefore, 277 PlacesAfterwards, 339 TransitionsBefore, 339 TransitionsAfterwards, 1514 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 62, Positive conditional cache size: 0, Positive unconditional cache size: 62, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 171.3ms, 279 PlacesBefore, 279 PlacesAfterwards, 335 TransitionsBefore, 335 TransitionsAfterwards, 1574 CoEnabledTransitionPairs, 2 FixpointIterations, 2 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 62, Positive conditional cache size: 0, Positive unconditional cache size: 62, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 108.1ms, 283 PlacesBefore, 281 PlacesAfterwards, 327 TransitionsBefore, 327 TransitionsAfterwards, 1510 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 62, Positive conditional cache size: 0, Positive unconditional cache size: 62, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 160.2ms, 276 PlacesBefore, 276 PlacesAfterwards, 334 TransitionsBefore, 334 TransitionsAfterwards, 1556 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 62, Positive conditional cache size: 0, Positive unconditional cache size: 62, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 107.3ms, 281 PlacesBefore, 277 PlacesAfterwards, 331 TransitionsBefore, 331 TransitionsAfterwards, 1556 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 62, Positive conditional cache size: 0, Positive unconditional cache size: 62, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 122.5ms, 282 PlacesBefore, 278 PlacesAfterwards, 327 TransitionsBefore, 327 TransitionsAfterwards, 1556 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 62, Positive conditional cache size: 0, Positive unconditional cache size: 62, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 100.5ms, 275 PlacesBefore, 267 PlacesAfterwards, 320 TransitionsBefore, 320 TransitionsAfterwards, 1538 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 62, Positive conditional cache size: 0, Positive unconditional cache size: 62, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 103.7ms, 264 PlacesBefore, 264 PlacesAfterwards, 332 TransitionsBefore, 332 TransitionsAfterwards, 1616 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 62, Positive conditional cache size: 0, Positive unconditional cache size: 62, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 137.8ms, 270 PlacesBefore, 269 PlacesAfterwards, 317 TransitionsBefore, 317 TransitionsAfterwards, 1484 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 6 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 99.8ms, 263 PlacesBefore, 263 PlacesAfterwards, 321 TransitionsBefore, 321 TransitionsAfterwards, 1518 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 170.7ms, 269 PlacesBefore, 269 PlacesAfterwards, 337 TransitionsBefore, 337 TransitionsAfterwards, 1640 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 5 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 144.6ms, 281 PlacesBefore, 281 PlacesAfterwards, 343 TransitionsBefore, 343 TransitionsAfterwards, 1704 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 5 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 123.2ms, 286 PlacesBefore, 286 PlacesAfterwards, 344 TransitionsBefore, 344 TransitionsAfterwards, 1714 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 100.6ms, 289 PlacesBefore, 270 PlacesAfterwards, 314 TransitionsBefore, 314 TransitionsAfterwards, 1468 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 100.6ms, 263 PlacesBefore, 263 PlacesAfterwards, 318 TransitionsBefore, 318 TransitionsAfterwards, 1520 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 176.0ms, 278 PlacesBefore, 278 PlacesAfterwards, 368 TransitionsBefore, 368 TransitionsAfterwards, 1720 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 8 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 132.3ms, 291 PlacesBefore, 291 PlacesAfterwards, 380 TransitionsBefore, 380 TransitionsAfterwards, 1836 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 166.5ms, 298 PlacesBefore, 295 PlacesAfterwards, 408 TransitionsBefore, 408 TransitionsAfterwards, 1872 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 144.0ms, 302 PlacesBefore, 302 PlacesAfterwards, 407 TransitionsBefore, 407 TransitionsAfterwards, 1860 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 144.0ms, 306 PlacesBefore, 306 PlacesAfterwards, 403 TransitionsBefore, 403 TransitionsAfterwards, 1838 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 135.8ms, 307 PlacesBefore, 307 PlacesAfterwards, 395 TransitionsBefore, 395 TransitionsAfterwards, 1800 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 156.1ms, 306 PlacesBefore, 305 PlacesAfterwards, 421 TransitionsBefore, 421 TransitionsAfterwards, 1882 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 151.8ms, 315 PlacesBefore, 315 PlacesAfterwards, 412 TransitionsBefore, 412 TransitionsAfterwards, 1850 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 155.1ms, 311 PlacesBefore, 307 PlacesAfterwards, 425 TransitionsBefore, 425 TransitionsAfterwards, 1862 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 176.8ms, 312 PlacesBefore, 312 PlacesAfterwards, 452 TransitionsBefore, 452 TransitionsAfterwards, 2000 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 218.3ms, 330 PlacesBefore, 330 PlacesAfterwards, 509 TransitionsBefore, 509 TransitionsAfterwards, 2270 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 232.2ms, 341 PlacesBefore, 341 PlacesAfterwards, 520 TransitionsBefore, 520 TransitionsAfterwards, 2338 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 232.6ms, 353 PlacesBefore, 353 PlacesAfterwards, 543 TransitionsBefore, 543 TransitionsAfterwards, 2486 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 251.1ms, 365 PlacesBefore, 365 PlacesAfterwards, 561 TransitionsBefore, 561 TransitionsAfterwards, 2540 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 266.2ms, 378 PlacesBefore, 378 PlacesAfterwards, 575 TransitionsBefore, 575 TransitionsAfterwards, 2624 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 408.9ms, 390 PlacesBefore, 390 PlacesAfterwards, 596 TransitionsBefore, 596 TransitionsAfterwards, 2812 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 300.4ms, 403 PlacesBefore, 403 PlacesAfterwards, 599 TransitionsBefore, 599 TransitionsAfterwards, 2810 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 309.1ms, 401 PlacesBefore, 401 PlacesAfterwards, 607 TransitionsBefore, 607 TransitionsAfterwards, 2740 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 311.1ms, 411 PlacesBefore, 411 PlacesAfterwards, 606 TransitionsBefore, 606 TransitionsAfterwards, 2768 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 335.2ms, 416 PlacesBefore, 416 PlacesAfterwards, 628 TransitionsBefore, 628 TransitionsAfterwards, 2914 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 421.9ms, 427 PlacesBefore, 422 PlacesAfterwards, 593 TransitionsBefore, 593 TransitionsAfterwards, 2656 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 283.4ms, 425 PlacesBefore, 420 PlacesAfterwards, 561 TransitionsBefore, 561 TransitionsAfterwards, 2424 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 276.5ms, 399 PlacesBefore, 399 PlacesAfterwards, 563 TransitionsBefore, 563 TransitionsAfterwards, 2448 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 281.7ms, 402 PlacesBefore, 402 PlacesAfterwards, 562 TransitionsBefore, 562 TransitionsAfterwards, 2448 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 275.4ms, 403 PlacesBefore, 401 PlacesAfterwards, 559 TransitionsBefore, 559 TransitionsAfterwards, 2424 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 278.4ms, 405 PlacesBefore, 405 PlacesAfterwards, 569 TransitionsBefore, 569 TransitionsAfterwards, 2472 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 276.5ms, 414 PlacesBefore, 409 PlacesAfterwards, 568 TransitionsBefore, 568 TransitionsAfterwards, 2450 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 299.2ms, 413 PlacesBefore, 413 PlacesAfterwards, 593 TransitionsBefore, 593 TransitionsAfterwards, 2522 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 333.4ms, 434 PlacesBefore, 431 PlacesAfterwards, 586 TransitionsBefore, 586 TransitionsAfterwards, 2368 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 294.1ms, 416 PlacesBefore, 416 PlacesAfterwards, 588 TransitionsBefore, 588 TransitionsAfterwards, 2392 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 278.5ms, 430 PlacesBefore, 430 PlacesAfterwards, 583 TransitionsBefore, 583 TransitionsAfterwards, 2136 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 264.2ms, 432 PlacesBefore, 427 PlacesAfterwards, 558 TransitionsBefore, 558 TransitionsAfterwards, 1904 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 262.6ms, 421 PlacesBefore, 413 PlacesAfterwards, 549 TransitionsBefore, 549 TransitionsAfterwards, 1832 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 233.0ms, 403 PlacesBefore, 403 PlacesAfterwards, 549 TransitionsBefore, 549 TransitionsAfterwards, 1832 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 301.0ms, 417 PlacesBefore, 414 PlacesAfterwards, 547 TransitionsBefore, 547 TransitionsAfterwards, 1794 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 233.7ms, 407 PlacesBefore, 404 PlacesAfterwards, 535 TransitionsBefore, 535 TransitionsAfterwards, 1738 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 226.5ms, 385 PlacesBefore, 384 PlacesAfterwards, 548 TransitionsBefore, 548 TransitionsAfterwards, 1726 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 283.8ms, 396 PlacesBefore, 389 PlacesAfterwards, 533 TransitionsBefore, 533 TransitionsAfterwards, 1718 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 217.7ms, 377 PlacesBefore, 375 PlacesAfterwards, 537 TransitionsBefore, 537 TransitionsAfterwards, 1710 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 230.3ms, 380 PlacesBefore, 378 PlacesAfterwards, 548 TransitionsBefore, 548 TransitionsAfterwards, 1738 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 330.0ms, 382 PlacesBefore, 382 PlacesAfterwards, 560 TransitionsBefore, 560 TransitionsAfterwards, 1824 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 5 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 233.0ms, 389 PlacesBefore, 389 PlacesAfterwards, 562 TransitionsBefore, 562 TransitionsAfterwards, 1900 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 237.3ms, 394 PlacesBefore, 394 PlacesAfterwards, 568 TransitionsBefore, 568 TransitionsAfterwards, 1946 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 261.2ms, 403 PlacesBefore, 402 PlacesAfterwards, 579 TransitionsBefore, 579 TransitionsAfterwards, 1946 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 264.1ms, 414 PlacesBefore, 414 PlacesAfterwards, 593 TransitionsBefore, 593 TransitionsAfterwards, 1946 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 338.6ms, 419 PlacesBefore, 419 PlacesAfterwards, 598 TransitionsBefore, 598 TransitionsAfterwards, 1942 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 266.3ms, 421 PlacesBefore, 421 PlacesAfterwards, 600 TransitionsBefore, 600 TransitionsAfterwards, 1954 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 268.9ms, 425 PlacesBefore, 425 PlacesAfterwards, 608 TransitionsBefore, 608 TransitionsAfterwards, 1994 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 279.3ms, 428 PlacesBefore, 426 PlacesAfterwards, 610 TransitionsBefore, 610 TransitionsAfterwards, 2012 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 363.9ms, 433 PlacesBefore, 433 PlacesAfterwards, 616 TransitionsBefore, 616 TransitionsAfterwards, 2048 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 302.6ms, 441 PlacesBefore, 441 PlacesAfterwards, 628 TransitionsBefore, 628 TransitionsAfterwards, 2108 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 392.2ms, 451 PlacesBefore, 451 PlacesAfterwards, 632 TransitionsBefore, 632 TransitionsAfterwards, 2136 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 432.2ms, 459 PlacesBefore, 459 PlacesAfterwards, 634 TransitionsBefore, 634 TransitionsAfterwards, 2156 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 315.1ms, 461 PlacesBefore, 458 PlacesAfterwards, 632 TransitionsBefore, 632 TransitionsAfterwards, 2156 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 374.2ms, 463 PlacesBefore, 457 PlacesAfterwards, 626 TransitionsBefore, 626 TransitionsAfterwards, 2124 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 387.2ms, 455 PlacesBefore, 454 PlacesAfterwards, 628 TransitionsBefore, 627 TransitionsAfterwards, 2144 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 5 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 57, Positive cache size: 57, Positive conditional cache size: 0, Positive unconditional cache size: 57, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 306.9ms, 460 PlacesBefore, 453 PlacesAfterwards, 622 TransitionsBefore, 622 TransitionsAfterwards, 2074 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 57, Positive cache size: 57, Positive conditional cache size: 0, Positive unconditional cache size: 57, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 367.7ms, 453 PlacesBefore, 447 PlacesAfterwards, 617 TransitionsBefore, 617 TransitionsAfterwards, 2030 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 380.6ms, 447 PlacesBefore, 440 PlacesAfterwards, 611 TransitionsBefore, 611 TransitionsAfterwards, 2020 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 291.8ms, 446 PlacesBefore, 445 PlacesAfterwards, 607 TransitionsBefore, 607 TransitionsAfterwards, 2020 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 306.2ms, 446 PlacesBefore, 446 PlacesAfterwards, 622 TransitionsBefore, 622 TransitionsAfterwards, 2068 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 388.9ms, 452 PlacesBefore, 448 PlacesAfterwards, 619 TransitionsBefore, 618 TransitionsAfterwards, 2068 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 50, Positive cache size: 50, Positive conditional cache size: 0, Positive unconditional cache size: 50, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 314.9ms, 450 PlacesBefore, 450 PlacesAfterwards, 625 TransitionsBefore, 625 TransitionsAfterwards, 2134 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 50, Positive cache size: 50, Positive conditional cache size: 0, Positive unconditional cache size: 50, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 322.9ms, 455 PlacesBefore, 445 PlacesAfterwards, 617 TransitionsBefore, 617 TransitionsAfterwards, 2100 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 50, Positive cache size: 50, Positive conditional cache size: 0, Positive unconditional cache size: 50, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 306.9ms, 440 PlacesBefore, 440 PlacesAfterwards, 621 TransitionsBefore, 621 TransitionsAfterwards, 2128 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 50, Positive cache size: 50, Positive conditional cache size: 0, Positive unconditional cache size: 50, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 334.9ms, 446 PlacesBefore, 446 PlacesAfterwards, 626 TransitionsBefore, 626 TransitionsAfterwards, 2166 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 50, Positive cache size: 50, Positive conditional cache size: 0, Positive unconditional cache size: 50, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 299.1ms, 460 PlacesBefore, 460 PlacesAfterwards, 612 TransitionsBefore, 612 TransitionsAfterwards, 2200 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 50, Positive cache size: 50, Positive conditional cache size: 0, Positive unconditional cache size: 50, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 300.7ms, 455 PlacesBefore, 455 PlacesAfterwards, 615 TransitionsBefore, 615 TransitionsAfterwards, 2238 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 50, Positive cache size: 50, Positive conditional cache size: 0, Positive unconditional cache size: 50, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 319.2ms, 465 PlacesBefore, 465 PlacesAfterwards, 623 TransitionsBefore, 623 TransitionsAfterwards, 2292 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 50, Positive cache size: 50, Positive conditional cache size: 0, Positive unconditional cache size: 50, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 394.9ms, 473 PlacesBefore, 467 PlacesAfterwards, 601 TransitionsBefore, 601 TransitionsAfterwards, 2236 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 8 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 54, Positive cache size: 54, Positive conditional cache size: 0, Positive unconditional cache size: 54, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 279.6ms, 453 PlacesBefore, 453 PlacesAfterwards, 602 TransitionsBefore, 602 TransitionsAfterwards, 2246 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 54, Positive cache size: 54, Positive conditional cache size: 0, Positive unconditional cache size: 54, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 386.8ms, 460 PlacesBefore, 449 PlacesAfterwards, 549 TransitionsBefore, 549 TransitionsAfterwards, 1888 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 8 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 54, Positive cache size: 54, Positive conditional cache size: 0, Positive unconditional cache size: 54, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 258.6ms, 428 PlacesBefore, 426 PlacesAfterwards, 534 TransitionsBefore, 534 TransitionsAfterwards, 1894 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 54, Positive cache size: 54, Positive conditional cache size: 0, Positive unconditional cache size: 54, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 255.5ms, 425 PlacesBefore, 425 PlacesAfterwards, 538 TransitionsBefore, 538 TransitionsAfterwards, 1934 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 54, Positive cache size: 54, Positive conditional cache size: 0, Positive unconditional cache size: 54, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 289.2ms, 433 PlacesBefore, 431 PlacesAfterwards, 525 TransitionsBefore, 525 TransitionsAfterwards, 1782 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 54, Positive cache size: 54, Positive conditional cache size: 0, Positive unconditional cache size: 54, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 267.5ms, 428 PlacesBefore, 428 PlacesAfterwards, 533 TransitionsBefore, 533 TransitionsAfterwards, 1808 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 54, Positive cache size: 54, Positive conditional cache size: 0, Positive unconditional cache size: 54, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 279.6ms, 436 PlacesBefore, 436 PlacesAfterwards, 539 TransitionsBefore, 539 TransitionsAfterwards, 1834 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 54, Positive cache size: 54, Positive conditional cache size: 0, Positive unconditional cache size: 54, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 271.0ms, 441 PlacesBefore, 441 PlacesAfterwards, 543 TransitionsBefore, 543 TransitionsAfterwards, 1862 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 54, Positive cache size: 54, Positive conditional cache size: 0, Positive unconditional cache size: 54, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 262.3ms, 449 PlacesBefore, 446 PlacesAfterwards, 547 TransitionsBefore, 547 TransitionsAfterwards, 1834 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 54, Positive cache size: 54, Positive conditional cache size: 0, Positive unconditional cache size: 54, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 284.3ms, 453 PlacesBefore, 452 PlacesAfterwards, 549 TransitionsBefore, 549 TransitionsAfterwards, 1832 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 54, Positive cache size: 54, Positive conditional cache size: 0, Positive unconditional cache size: 54, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 328.4ms, 456 PlacesBefore, 454 PlacesAfterwards, 540 TransitionsBefore, 540 TransitionsAfterwards, 1824 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 58, Positive cache size: 58, Positive conditional cache size: 0, Positive unconditional cache size: 58, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 283.6ms, 455 PlacesBefore, 455 PlacesAfterwards, 568 TransitionsBefore, 568 TransitionsAfterwards, 1868 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 58, Positive cache size: 58, Positive conditional cache size: 0, Positive unconditional cache size: 58, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 292.0ms, 462 PlacesBefore, 459 PlacesAfterwards, 561 TransitionsBefore, 561 TransitionsAfterwards, 1786 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 58, Positive cache size: 58, Positive conditional cache size: 0, Positive unconditional cache size: 58, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 380.4ms, 460 PlacesBefore, 460 PlacesAfterwards, 581 TransitionsBefore, 581 TransitionsAfterwards, 1942 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 58, Positive cache size: 58, Positive conditional cache size: 0, Positive unconditional cache size: 58, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 364.6ms, 467 PlacesBefore, 467 PlacesAfterwards, 585 TransitionsBefore, 585 TransitionsAfterwards, 1982 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 58, Positive cache size: 58, Positive conditional cache size: 0, Positive unconditional cache size: 58, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 316.0ms, 477 PlacesBefore, 477 PlacesAfterwards, 590 TransitionsBefore, 590 TransitionsAfterwards, 2028 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 58, Positive cache size: 58, Positive conditional cache size: 0, Positive unconditional cache size: 58, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 310.9ms, 484 PlacesBefore, 483 PlacesAfterwards, 590 TransitionsBefore, 590 TransitionsAfterwards, 2038 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 58, Positive cache size: 58, Positive conditional cache size: 0, Positive unconditional cache size: 58, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 480.2ms, 487 PlacesBefore, 484 PlacesAfterwards, 586 TransitionsBefore, 586 TransitionsAfterwards, 2016 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 58, Positive cache size: 58, Positive conditional cache size: 0, Positive unconditional cache size: 58, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 334.5ms, 478 PlacesBefore, 477 PlacesAfterwards, 585 TransitionsBefore, 585 TransitionsAfterwards, 2016 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 58, Positive cache size: 58, Positive conditional cache size: 0, Positive unconditional cache size: 58, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 308.2ms, 480 PlacesBefore, 478 PlacesAfterwards, 582 TransitionsBefore, 582 TransitionsAfterwards, 2016 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 58, Positive cache size: 58, Positive conditional cache size: 0, Positive unconditional cache size: 58, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 316.4ms, 478 PlacesBefore, 478 PlacesAfterwards, 586 TransitionsBefore, 586 TransitionsAfterwards, 2068 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 58, Positive cache size: 58, Positive conditional cache size: 0, Positive unconditional cache size: 58, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 300.6ms, 485 PlacesBefore, 479 PlacesAfterwards, 570 TransitionsBefore, 570 TransitionsAfterwards, 1924 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 58, Positive cache size: 58, Positive conditional cache size: 0, Positive unconditional cache size: 58, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 309.4ms, 478 PlacesBefore, 478 PlacesAfterwards, 583 TransitionsBefore, 583 TransitionsAfterwards, 2026 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 58, Positive cache size: 58, Positive conditional cache size: 0, Positive unconditional cache size: 58, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 324.2ms, 480 PlacesBefore, 480 PlacesAfterwards, 585 TransitionsBefore, 585 TransitionsAfterwards, 2050 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 58, Positive cache size: 58, Positive conditional cache size: 0, Positive unconditional cache size: 58, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 353.9ms, 489 PlacesBefore, 489 PlacesAfterwards, 595 TransitionsBefore, 595 TransitionsAfterwards, 2092 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 58, Positive cache size: 58, Positive conditional cache size: 0, Positive unconditional cache size: 58, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 326.6ms, 503 PlacesBefore, 501 PlacesAfterwards, 574 TransitionsBefore, 574 TransitionsAfterwards, 1992 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 58, Positive cache size: 58, Positive conditional cache size: 0, Positive unconditional cache size: 58, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 341.1ms, 503 PlacesBefore, 502 PlacesAfterwards, 572 TransitionsBefore, 572 TransitionsAfterwards, 2006 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 58, Positive cache size: 58, Positive conditional cache size: 0, Positive unconditional cache size: 58, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 309.6ms, 505 PlacesBefore, 501 PlacesAfterwards, 556 TransitionsBefore, 556 TransitionsAfterwards, 1894 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 58, Positive cache size: 58, Positive conditional cache size: 0, Positive unconditional cache size: 58, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 293.2ms, 498 PlacesBefore, 496 PlacesAfterwards, 551 TransitionsBefore, 551 TransitionsAfterwards, 1872 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 58, Positive cache size: 58, Positive conditional cache size: 0, Positive unconditional cache size: 58, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 362.7ms, 488 PlacesBefore, 481 PlacesAfterwards, 543 TransitionsBefore, 543 TransitionsAfterwards, 1838 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 287.3ms, 478 PlacesBefore, 477 PlacesAfterwards, 542 TransitionsBefore, 542 TransitionsAfterwards, 1838 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 291.8ms, 476 PlacesBefore, 476 PlacesAfterwards, 543 TransitionsBefore, 543 TransitionsAfterwards, 1850 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 294.6ms, 481 PlacesBefore, 479 PlacesAfterwards, 538 TransitionsBefore, 538 TransitionsAfterwards, 1800 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 283.6ms, 479 PlacesBefore, 479 PlacesAfterwards, 546 TransitionsBefore, 546 TransitionsAfterwards, 1852 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 262.8ms, 485 PlacesBefore, 483 PlacesAfterwards, 539 TransitionsBefore, 539 TransitionsAfterwards, 1828 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 289.5ms, 477 PlacesBefore, 477 PlacesAfterwards, 546 TransitionsBefore, 546 TransitionsAfterwards, 1892 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 331.4ms, 485 PlacesBefore, 485 PlacesAfterwards, 551 TransitionsBefore, 551 TransitionsAfterwards, 1904 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 317.4ms, 491 PlacesBefore, 491 PlacesAfterwards, 558 TransitionsBefore, 558 TransitionsAfterwards, 1938 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 301.5ms, 496 PlacesBefore, 496 PlacesAfterwards, 566 TransitionsBefore, 566 TransitionsAfterwards, 1986 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 332.7ms, 504 PlacesBefore, 504 PlacesAfterwards, 569 TransitionsBefore, 569 TransitionsAfterwards, 2016 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 351.3ms, 509 PlacesBefore, 509 PlacesAfterwards, 571 TransitionsBefore, 571 TransitionsAfterwards, 2042 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 345.2ms, 511 PlacesBefore, 509 PlacesAfterwards, 566 TransitionsBefore, 566 TransitionsAfterwards, 1992 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 355.0ms, 509 PlacesBefore, 509 PlacesAfterwards, 562 TransitionsBefore, 562 TransitionsAfterwards, 1992 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 355.7ms, 509 PlacesBefore, 509 PlacesAfterwards, 563 TransitionsBefore, 563 TransitionsAfterwards, 2008 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 353.5ms, 512 PlacesBefore, 510 PlacesAfterwards, 558 TransitionsBefore, 558 TransitionsAfterwards, 1954 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 331.9ms, 509 PlacesBefore, 507 PlacesAfterwards, 555 TransitionsBefore, 555 TransitionsAfterwards, 1928 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 326.6ms, 504 PlacesBefore, 503 PlacesAfterwards, 550 TransitionsBefore, 550 TransitionsAfterwards, 1874 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 311.9ms, 499 PlacesBefore, 499 PlacesAfterwards, 550 TransitionsBefore, 550 TransitionsAfterwards, 1888 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 340.9ms, 503 PlacesBefore, 503 PlacesAfterwards, 556 TransitionsBefore, 556 TransitionsAfterwards, 1912 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 354.4ms, 507 PlacesBefore, 507 PlacesAfterwards, 565 TransitionsBefore, 565 TransitionsAfterwards, 1990 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 321.5ms, 516 PlacesBefore, 514 PlacesAfterwards, 552 TransitionsBefore, 552 TransitionsAfterwards, 1878 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 324.9ms, 512 PlacesBefore, 512 PlacesAfterwards, 553 TransitionsBefore, 553 TransitionsAfterwards, 1898 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 312.8ms, 514 PlacesBefore, 514 PlacesAfterwards, 547 TransitionsBefore, 547 TransitionsAfterwards, 1846 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 328.0ms, 510 PlacesBefore, 510 PlacesAfterwards, 548 TransitionsBefore, 548 TransitionsAfterwards, 1854 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 305.8ms, 512 PlacesBefore, 508 PlacesAfterwards, 540 TransitionsBefore, 540 TransitionsAfterwards, 1818 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 271.7ms, 507 PlacesBefore, 494 PlacesAfterwards, 504 TransitionsBefore, 504 TransitionsAfterwards, 1566 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 245.0ms, 470 PlacesBefore, 470 PlacesAfterwards, 504 TransitionsBefore, 504 TransitionsAfterwards, 1566 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 249.7ms, 481 PlacesBefore, 478 PlacesAfterwards, 492 TransitionsBefore, 492 TransitionsAfterwards, 1562 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 259.1ms, 462 PlacesBefore, 462 PlacesAfterwards, 501 TransitionsBefore, 501 TransitionsAfterwards, 1656 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 325.7ms, 470 PlacesBefore, 470 PlacesAfterwards, 510 TransitionsBefore, 510 TransitionsAfterwards, 1738 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 5 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 64, Positive cache size: 64, Positive conditional cache size: 0, Positive unconditional cache size: 64, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 261.0ms, 479 PlacesBefore, 475 PlacesAfterwards, 511 TransitionsBefore, 511 TransitionsAfterwards, 1812 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 64, Positive cache size: 64, Positive conditional cache size: 0, Positive unconditional cache size: 64, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 299.6ms, 488 PlacesBefore, 488 PlacesAfterwards, 524 TransitionsBefore, 524 TransitionsAfterwards, 1950 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 64, Positive cache size: 64, Positive conditional cache size: 0, Positive unconditional cache size: 64, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 260.5ms, 496 PlacesBefore, 475 PlacesAfterwards, 477 TransitionsBefore, 477 TransitionsAfterwards, 1776 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 64, Positive cache size: 64, Positive conditional cache size: 0, Positive unconditional cache size: 64, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 244.6ms, 444 PlacesBefore, 444 PlacesAfterwards, 477 TransitionsBefore, 477 TransitionsAfterwards, 1776 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 64, Positive cache size: 64, Positive conditional cache size: 0, Positive unconditional cache size: 64, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 230.9ms, 441 PlacesBefore, 435 PlacesAfterwards, 467 TransitionsBefore, 467 TransitionsAfterwards, 1708 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 64, Positive cache size: 64, Positive conditional cache size: 0, Positive unconditional cache size: 64, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 268.7ms, 432 PlacesBefore, 419 PlacesAfterwards, 436 TransitionsBefore, 436 TransitionsAfterwards, 1488 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 7 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 7, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 64, Positive cache size: 64, Positive conditional cache size: 0, Positive unconditional cache size: 64, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 180.1ms, 412 PlacesBefore, 407 PlacesAfterwards, 411 TransitionsBefore, 411 TransitionsAfterwards, 1476 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 64, Positive cache size: 64, Positive conditional cache size: 0, Positive unconditional cache size: 64, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 300.5ms, 395 PlacesBefore, 395 PlacesAfterwards, 429 TransitionsBefore, 429 TransitionsAfterwards, 1576 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 11 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 11, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 11, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 69, Positive cache size: 69, Positive conditional cache size: 0, Positive unconditional cache size: 69, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 302.7ms, 412 PlacesBefore, 412 PlacesAfterwards, 453 TransitionsBefore, 453 TransitionsAfterwards, 1706 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 5 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 69, Positive cache size: 69, Positive conditional cache size: 0, Positive unconditional cache size: 69, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 337.5ms, 423 PlacesBefore, 422 PlacesAfterwards, 456 TransitionsBefore, 455 TransitionsAfterwards, 1726 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 5 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 63, Positive cache size: 63, Positive conditional cache size: 0, Positive unconditional cache size: 63, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 235.5ms, 426 PlacesBefore, 426 PlacesAfterwards, 455 TransitionsBefore, 455 TransitionsAfterwards, 1716 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 63, Positive cache size: 63, Positive conditional cache size: 0, Positive unconditional cache size: 63, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 337.6ms, 429 PlacesBefore, 428 PlacesAfterwards, 473 TransitionsBefore, 472 TransitionsAfterwards, 1798 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 5 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 63, Positive cache size: 63, Positive conditional cache size: 0, Positive unconditional cache size: 63, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 241.6ms, 439 PlacesBefore, 438 PlacesAfterwards, 491 TransitionsBefore, 491 TransitionsAfterwards, 1802 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 63, Positive cache size: 63, Positive conditional cache size: 0, Positive unconditional cache size: 63, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 310.9ms, 445 PlacesBefore, 445 PlacesAfterwards, 496 TransitionsBefore, 496 TransitionsAfterwards, 1856 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 5 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 319.8ms, 452 PlacesBefore, 451 PlacesAfterwards, 498 TransitionsBefore, 498 TransitionsAfterwards, 1870 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 66, Positive cache size: 66, Positive conditional cache size: 0, Positive unconditional cache size: 66, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 352.7ms, 463 PlacesBefore, 462 PlacesAfterwards, 511 TransitionsBefore, 511 TransitionsAfterwards, 1884 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 1 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 322.1ms, 473 PlacesBefore, 472 PlacesAfterwards, 514 TransitionsBefore, 514 TransitionsAfterwards, 1884 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 272.4ms, 474 PlacesBefore, 469 PlacesAfterwards, 514 TransitionsBefore, 514 TransitionsAfterwards, 1850 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 294.1ms, 472 PlacesBefore, 471 PlacesAfterwards, 512 TransitionsBefore, 512 TransitionsAfterwards, 1850 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 292.1ms, 470 PlacesBefore, 460 PlacesAfterwards, 498 TransitionsBefore, 498 TransitionsAfterwards, 1742 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 281.4ms, 459 PlacesBefore, 459 PlacesAfterwards, 498 TransitionsBefore, 498 TransitionsAfterwards, 1742 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 305.2ms, 466 PlacesBefore, 466 PlacesAfterwards, 523 TransitionsBefore, 523 TransitionsAfterwards, 1884 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 371.5ms, 479 PlacesBefore, 479 PlacesAfterwards, 537 TransitionsBefore, 537 TransitionsAfterwards, 2030 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 10 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 10, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 511.0ms, 496 PlacesBefore, 496 PlacesAfterwards, 566 TransitionsBefore, 566 TransitionsAfterwards, 2302 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 15 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 15, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 15, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 304.3ms, 502 PlacesBefore, 502 PlacesAfterwards, 566 TransitionsBefore, 566 TransitionsAfterwards, 2302 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 315.1ms, 506 PlacesBefore, 506 PlacesAfterwards, 566 TransitionsBefore, 566 TransitionsAfterwards, 2302 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 378.8ms, 510 PlacesBefore, 509 PlacesAfterwards, 571 TransitionsBefore, 570 TransitionsAfterwards, 2352 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 5 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 421.6ms, 516 PlacesBefore, 516 PlacesAfterwards, 590 TransitionsBefore, 590 TransitionsAfterwards, 2510 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 5 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 363.7ms, 531 PlacesBefore, 531 PlacesAfterwards, 605 TransitionsBefore, 605 TransitionsAfterwards, 2660 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 450.3ms, 542 PlacesBefore, 541 PlacesAfterwards, 609 TransitionsBefore, 608 TransitionsAfterwards, 2700 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 5 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 372.6ms, 545 PlacesBefore, 545 PlacesAfterwards, 610 TransitionsBefore, 610 TransitionsAfterwards, 2716 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 374.3ms, 556 PlacesBefore, 556 PlacesAfterwards, 610 TransitionsBefore, 610 TransitionsAfterwards, 2716 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 470.5ms, 556 PlacesBefore, 556 PlacesAfterwards, 614 TransitionsBefore, 614 TransitionsAfterwards, 2760 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 5 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 431.9ms, 567 PlacesBefore, 567 PlacesAfterwards, 622 TransitionsBefore, 622 TransitionsAfterwards, 2800 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 401.3ms, 575 PlacesBefore, 575 PlacesAfterwards, 626 TransitionsBefore, 626 TransitionsAfterwards, 2856 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 412.8ms, 581 PlacesBefore, 581 PlacesAfterwards, 638 TransitionsBefore, 638 TransitionsAfterwards, 2940 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 621.3ms, 599 PlacesBefore, 599 PlacesAfterwards, 671 TransitionsBefore, 671 TransitionsAfterwards, 3126 CoEnabledTransitionPairs, 2 FixpointIterations, 2 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 10 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 10, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 505.7ms, 615 PlacesBefore, 602 PlacesAfterwards, 648 TransitionsBefore, 648 TransitionsAfterwards, 2884 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 10 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 10, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 443.8ms, 587 PlacesBefore, 587 PlacesAfterwards, 664 TransitionsBefore, 664 TransitionsAfterwards, 2934 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 415.8ms, 590 PlacesBefore, 590 PlacesAfterwards, 664 TransitionsBefore, 664 TransitionsAfterwards, 2934 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 561.0ms, 599 PlacesBefore, 599 PlacesAfterwards, 675 TransitionsBefore, 675 TransitionsAfterwards, 3030 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 5 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 527.8ms, 615 PlacesBefore, 612 PlacesAfterwards, 679 TransitionsBefore, 679 TransitionsAfterwards, 3032 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 479.2ms, 617 PlacesBefore, 617 PlacesAfterwards, 698 TransitionsBefore, 698 TransitionsAfterwards, 3132 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 479.0ms, 628 PlacesBefore, 628 PlacesAfterwards, 702 TransitionsBefore, 702 TransitionsAfterwards, 3166 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 523.2ms, 639 PlacesBefore, 639 PlacesAfterwards, 697 TransitionsBefore, 697 TransitionsAfterwards, 3166 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 484.5ms, 636 PlacesBefore, 636 PlacesAfterwards, 705 TransitionsBefore, 705 TransitionsAfterwards, 3212 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 491.8ms, 650 PlacesBefore, 644 PlacesAfterwards, 705 TransitionsBefore, 705 TransitionsAfterwards, 3206 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 551.4ms, 648 PlacesBefore, 648 PlacesAfterwards, 716 TransitionsBefore, 716 TransitionsAfterwards, 3300 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 538.2ms, 666 PlacesBefore, 666 PlacesAfterwards, 732 TransitionsBefore, 732 TransitionsAfterwards, 3396 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 676.3ms, 672 PlacesBefore, 672 PlacesAfterwards, 735 TransitionsBefore, 735 TransitionsAfterwards, 3416 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 581.6ms, 673 PlacesBefore, 673 PlacesAfterwards, 742 TransitionsBefore, 742 TransitionsAfterwards, 3476 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 565.7ms, 683 PlacesBefore, 683 PlacesAfterwards, 744 TransitionsBefore, 744 TransitionsAfterwards, 3502 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 808.2ms, 691 PlacesBefore, 690 PlacesAfterwards, 763 TransitionsBefore, 762 TransitionsAfterwards, 3628 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 5 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 622.1ms, 706 PlacesBefore, 695 PlacesAfterwards, 751 TransitionsBefore, 751 TransitionsAfterwards, 3518 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 620.0ms, 695 PlacesBefore, 695 PlacesAfterwards, 766 TransitionsBefore, 766 TransitionsAfterwards, 3608 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 802.1ms, 703 PlacesBefore, 703 PlacesAfterwards, 767 TransitionsBefore, 767 TransitionsAfterwards, 3620 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 634.6ms, 710 PlacesBefore, 710 PlacesAfterwards, 773 TransitionsBefore, 773 TransitionsAfterwards, 3684 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 645.7ms, 721 PlacesBefore, 721 PlacesAfterwards, 774 TransitionsBefore, 774 TransitionsAfterwards, 3684 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 614.5ms, 722 PlacesBefore, 722 PlacesAfterwards, 787 TransitionsBefore, 787 TransitionsAfterwards, 3764 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 951.8ms, 733 PlacesBefore, 730 PlacesAfterwards, 817 TransitionsBefore, 817 TransitionsAfterwards, 3862 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 10 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 10, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 705.8ms, 743 PlacesBefore, 743 PlacesAfterwards, 814 TransitionsBefore, 814 TransitionsAfterwards, 3862 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 760.2ms, 745 PlacesBefore, 745 PlacesAfterwards, 822 TransitionsBefore, 822 TransitionsAfterwards, 3882 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 729.9ms, 751 PlacesBefore, 751 PlacesAfterwards, 823 TransitionsBefore, 823 TransitionsAfterwards, 3892 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 772.1ms, 759 PlacesBefore, 759 PlacesAfterwards, 831 TransitionsBefore, 831 TransitionsAfterwards, 3906 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 852.4ms, 765 PlacesBefore, 765 PlacesAfterwards, 858 TransitionsBefore, 858 TransitionsAfterwards, 4060 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 903.8ms, 785 PlacesBefore, 782 PlacesAfterwards, 864 TransitionsBefore, 864 TransitionsAfterwards, 4048 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 912.9ms, 785 PlacesBefore, 785 PlacesAfterwards, 867 TransitionsBefore, 867 TransitionsAfterwards, 4064 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 915.0ms, 791 PlacesBefore, 785 PlacesAfterwards, 860 TransitionsBefore, 860 TransitionsAfterwards, 4040 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 866.9ms, 779 PlacesBefore, 775 PlacesAfterwards, 853 TransitionsBefore, 853 TransitionsAfterwards, 3972 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 919.2ms, 774 PlacesBefore, 774 PlacesAfterwards, 861 TransitionsBefore, 861 TransitionsAfterwards, 4034 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 986.5ms, 788 PlacesBefore, 788 PlacesAfterwards, 866 TransitionsBefore, 866 TransitionsAfterwards, 4088 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 5 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1166.1ms, 797 PlacesBefore, 793 PlacesAfterwards, 881 TransitionsBefore, 881 TransitionsAfterwards, 4152 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 982.4ms, 798 PlacesBefore, 788 PlacesAfterwards, 850 TransitionsBefore, 850 TransitionsAfterwards, 3730 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 890.6ms, 782 PlacesBefore, 779 PlacesAfterwards, 846 TransitionsBefore, 846 TransitionsAfterwards, 3692 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 974.0ms, 780 PlacesBefore, 775 PlacesAfterwards, 842 TransitionsBefore, 842 TransitionsAfterwards, 3684 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 975.1ms, 774 PlacesBefore, 774 PlacesAfterwards, 846 TransitionsBefore, 846 TransitionsAfterwards, 3732 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 818.5ms, 779 PlacesBefore, 775 PlacesAfterwards, 835 TransitionsBefore, 835 TransitionsAfterwards, 3602 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 763.2ms, 769 PlacesBefore, 768 PlacesAfterwards, 841 TransitionsBefore, 841 TransitionsAfterwards, 3650 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 935.0ms, 775 PlacesBefore, 775 PlacesAfterwards, 857 TransitionsBefore, 857 TransitionsAfterwards, 3768 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 5 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 908.9ms, 786 PlacesBefore, 786 PlacesAfterwards, 863 TransitionsBefore, 863 TransitionsAfterwards, 3816 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1079.9ms, 802 PlacesBefore, 802 PlacesAfterwards, 886 TransitionsBefore, 886 TransitionsAfterwards, 3876 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 857.4ms, 800 PlacesBefore, 799 PlacesAfterwards, 881 TransitionsBefore, 881 TransitionsAfterwards, 3828 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 963.6ms, 802 PlacesBefore, 801 PlacesAfterwards, 881 TransitionsBefore, 881 TransitionsAfterwards, 3828 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 939.7ms, 802 PlacesBefore, 801 PlacesAfterwards, 881 TransitionsBefore, 881 TransitionsAfterwards, 3828 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 793.0ms, 802 PlacesBefore, 801 PlacesAfterwards, 879 TransitionsBefore, 879 TransitionsAfterwards, 3828 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 930.0ms, 798 PlacesBefore, 798 PlacesAfterwards, 882 TransitionsBefore, 882 TransitionsAfterwards, 3862 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 5 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 826.1ms, 804 PlacesBefore, 804 PlacesAfterwards, 891 TransitionsBefore, 891 TransitionsAfterwards, 3952 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 818.5ms, 814 PlacesBefore, 814 PlacesAfterwards, 898 TransitionsBefore, 898 TransitionsAfterwards, 4004 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 859.0ms, 823 PlacesBefore, 823 PlacesAfterwards, 903 TransitionsBefore, 903 TransitionsAfterwards, 4062 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1002.3ms, 832 PlacesBefore, 832 PlacesAfterwards, 907 TransitionsBefore, 907 TransitionsAfterwards, 4096 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 5 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 858.1ms, 838 PlacesBefore, 838 PlacesAfterwards, 907 TransitionsBefore, 907 TransitionsAfterwards, 4096 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 785.1ms, 841 PlacesBefore, 818 PlacesAfterwards, 866 TransitionsBefore, 866 TransitionsAfterwards, 3738 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 893.1ms, 809 PlacesBefore, 809 PlacesAfterwards, 869 TransitionsBefore, 869 TransitionsAfterwards, 3780 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 881.9ms, 814 PlacesBefore, 813 PlacesAfterwards, 868 TransitionsBefore, 868 TransitionsAfterwards, 3780 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 791.9ms, 814 PlacesBefore, 812 PlacesAfterwards, 865 TransitionsBefore, 865 TransitionsAfterwards, 3754 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 760.7ms, 817 PlacesBefore, 813 PlacesAfterwards, 862 TransitionsBefore, 862 TransitionsAfterwards, 3730 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 733.3ms, 809 PlacesBefore, 805 PlacesAfterwards, 853 TransitionsBefore, 853 TransitionsAfterwards, 3642 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 816.3ms, 806 PlacesBefore, 805 PlacesAfterwards, 857 TransitionsBefore, 857 TransitionsAfterwards, 3642 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 781.7ms, 812 PlacesBefore, 811 PlacesAfterwards, 854 TransitionsBefore, 854 TransitionsAfterwards, 3614 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 880.5ms, 812 PlacesBefore, 812 PlacesAfterwards, 875 TransitionsBefore, 875 TransitionsAfterwards, 3688 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 817.8ms, 827 PlacesBefore, 827 PlacesAfterwards, 880 TransitionsBefore, 880 TransitionsAfterwards, 3720 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 867.4ms, 839 PlacesBefore, 837 PlacesAfterwards, 875 TransitionsBefore, 875 TransitionsAfterwards, 3684 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 818.2ms, 830 PlacesBefore, 829 PlacesAfterwards, 873 TransitionsBefore, 873 TransitionsAfterwards, 3684 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 935.5ms, 826 PlacesBefore, 826 PlacesAfterwards, 880 TransitionsBefore, 880 TransitionsAfterwards, 3730 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 854.5ms, 838 PlacesBefore, 838 PlacesAfterwards, 891 TransitionsBefore, 891 TransitionsAfterwards, 3832 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 842.1ms, 843 PlacesBefore, 843 PlacesAfterwards, 892 TransitionsBefore, 892 TransitionsAfterwards, 3846 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 918.6ms, 844 PlacesBefore, 844 PlacesAfterwards, 897 TransitionsBefore, 897 TransitionsAfterwards, 3874 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 857.1ms, 852 PlacesBefore, 852 PlacesAfterwards, 908 TransitionsBefore, 908 TransitionsAfterwards, 3954 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1049.3ms, 858 PlacesBefore, 858 PlacesAfterwards, 904 TransitionsBefore, 904 TransitionsAfterwards, 3942 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 854.7ms, 861 PlacesBefore, 859 PlacesAfterwards, 902 TransitionsBefore, 902 TransitionsAfterwards, 3932 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 864.9ms, 852 PlacesBefore, 852 PlacesAfterwards, 908 TransitionsBefore, 908 TransitionsAfterwards, 3986 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 906.0ms, 858 PlacesBefore, 858 PlacesAfterwards, 911 TransitionsBefore, 911 TransitionsAfterwards, 4022 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 964.1ms, 864 PlacesBefore, 863 PlacesAfterwards, 896 TransitionsBefore, 896 TransitionsAfterwards, 3894 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 850.5ms, 854 PlacesBefore, 854 PlacesAfterwards, 899 TransitionsBefore, 899 TransitionsAfterwards, 3928 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 856.0ms, 864 PlacesBefore, 863 PlacesAfterwards, 900 TransitionsBefore, 900 TransitionsAfterwards, 3940 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 866.7ms, 872 PlacesBefore, 872 PlacesAfterwards, 923 TransitionsBefore, 923 TransitionsAfterwards, 4096 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 890.5ms, 879 PlacesBefore, 878 PlacesAfterwards, 922 TransitionsBefore, 922 TransitionsAfterwards, 4096 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 897.5ms, 879 PlacesBefore, 873 PlacesAfterwards, 914 TransitionsBefore, 914 TransitionsAfterwards, 4068 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 942.3ms, 874 PlacesBefore, 874 PlacesAfterwards, 918 TransitionsBefore, 918 TransitionsAfterwards, 4104 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1092.6ms, 880 PlacesBefore, 880 PlacesAfterwards, 920 TransitionsBefore, 920 TransitionsAfterwards, 4132 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 919.9ms, 883 PlacesBefore, 882 PlacesAfterwards, 921 TransitionsBefore, 921 TransitionsAfterwards, 4132 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 951.1ms, 890 PlacesBefore, 890 PlacesAfterwards, 926 TransitionsBefore, 926 TransitionsAfterwards, 4156 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 908.0ms, 896 PlacesBefore, 887 PlacesAfterwards, 910 TransitionsBefore, 910 TransitionsAfterwards, 4056 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1036.2ms, 878 PlacesBefore, 864 PlacesAfterwards, 902 TransitionsBefore, 902 TransitionsAfterwards, 4022 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 882.8ms, 862 PlacesBefore, 859 PlacesAfterwards, 900 TransitionsBefore, 900 TransitionsAfterwards, 4010 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 934.4ms, 859 PlacesBefore, 858 PlacesAfterwards, 902 TransitionsBefore, 902 TransitionsAfterwards, 4010 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1011.6ms, 862 PlacesBefore, 861 PlacesAfterwards, 900 TransitionsBefore, 900 TransitionsAfterwards, 4010 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 887.1ms, 860 PlacesBefore, 859 PlacesAfterwards, 899 TransitionsBefore, 899 TransitionsAfterwards, 4010 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 884.7ms, 863 PlacesBefore, 863 PlacesAfterwards, 901 TransitionsBefore, 901 TransitionsAfterwards, 4030 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1019.3ms, 868 PlacesBefore, 867 PlacesAfterwards, 893 TransitionsBefore, 893 TransitionsAfterwards, 4028 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 932.7ms, 855 PlacesBefore, 855 PlacesAfterwards, 919 TransitionsBefore, 919 TransitionsAfterwards, 4090 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 902.0ms, 863 PlacesBefore, 862 PlacesAfterwards, 915 TransitionsBefore, 915 TransitionsAfterwards, 4080 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1017.5ms, 864 PlacesBefore, 861 PlacesAfterwards, 906 TransitionsBefore, 906 TransitionsAfterwards, 3996 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1098.6ms, 853 PlacesBefore, 849 PlacesAfterwards, 901 TransitionsBefore, 900 TransitionsAfterwards, 3952 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 940.7ms, 851 PlacesBefore, 849 PlacesAfterwards, 899 TransitionsBefore, 899 TransitionsAfterwards, 3952 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 954.9ms, 846 PlacesBefore, 842 PlacesAfterwards, 894 TransitionsBefore, 894 TransitionsAfterwards, 3938 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 853.9ms, 841 PlacesBefore, 840 PlacesAfterwards, 890 TransitionsBefore, 890 TransitionsAfterwards, 3926 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 894.3ms, 837 PlacesBefore, 835 PlacesAfterwards, 885 TransitionsBefore, 885 TransitionsAfterwards, 3902 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1011.3ms, 833 PlacesBefore, 833 PlacesAfterwards, 886 TransitionsBefore, 886 TransitionsAfterwards, 3918 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 67, Positive conditional cache size: 0, Positive unconditional cache size: 67, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 975.8ms, 831 PlacesBefore, 826 PlacesAfterwards, 876 TransitionsBefore, 876 TransitionsAfterwards, 3856 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 69, Positive cache size: 69, Positive conditional cache size: 0, Positive unconditional cache size: 69, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1000.4ms, 824 PlacesBefore, 824 PlacesAfterwards, 890 TransitionsBefore, 890 TransitionsAfterwards, 3906 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 69, Positive cache size: 69, Positive conditional cache size: 0, Positive unconditional cache size: 69, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 868.8ms, 844 PlacesBefore, 844 PlacesAfterwards, 895 TransitionsBefore, 895 TransitionsAfterwards, 3986 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 69, Positive cache size: 69, Positive conditional cache size: 0, Positive unconditional cache size: 69, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1058.5ms, 858 PlacesBefore, 858 PlacesAfterwards, 900 TransitionsBefore, 900 TransitionsAfterwards, 4074 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 6 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 70, Positive cache size: 70, Positive conditional cache size: 0, Positive unconditional cache size: 70, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 868.1ms, 859 PlacesBefore, 854 PlacesAfterwards, 895 TransitionsBefore, 895 TransitionsAfterwards, 4030 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 70, Positive cache size: 70, Positive conditional cache size: 0, Positive unconditional cache size: 70, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 987.5ms, 855 PlacesBefore, 848 PlacesAfterwards, 888 TransitionsBefore, 888 TransitionsAfterwards, 3956 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 70, Positive cache size: 70, Positive conditional cache size: 0, Positive unconditional cache size: 70, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 838.8ms, 847 PlacesBefore, 846 PlacesAfterwards, 889 TransitionsBefore, 889 TransitionsAfterwards, 3956 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 70, Positive cache size: 70, Positive conditional cache size: 0, Positive unconditional cache size: 70, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1026.2ms, 852 PlacesBefore, 852 PlacesAfterwards, 896 TransitionsBefore, 896 TransitionsAfterwards, 4002 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 70, Positive cache size: 70, Positive conditional cache size: 0, Positive unconditional cache size: 70, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 877.8ms, 854 PlacesBefore, 846 PlacesAfterwards, 901 TransitionsBefore, 901 TransitionsAfterwards, 4004 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 70, Positive cache size: 70, Positive conditional cache size: 0, Positive unconditional cache size: 70, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1141.9ms, 861 PlacesBefore, 861 PlacesAfterwards, 929 TransitionsBefore, 929 TransitionsAfterwards, 4128 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 5 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 73, Positive cache size: 73, Positive conditional cache size: 0, Positive unconditional cache size: 73, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1239.5ms, 874 PlacesBefore, 874 PlacesAfterwards, 966 TransitionsBefore, 966 TransitionsAfterwards, 4252 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 3 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 74, Positive cache size: 74, Positive conditional cache size: 0, Positive unconditional cache size: 74, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1034.1ms, 887 PlacesBefore, 887 PlacesAfterwards, 984 TransitionsBefore, 984 TransitionsAfterwards, 4302 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 74, Positive cache size: 74, Positive conditional cache size: 0, Positive unconditional cache size: 74, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1056.7ms, 889 PlacesBefore, 889 PlacesAfterwards, 996 TransitionsBefore, 996 TransitionsAfterwards, 4318 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 74, Positive cache size: 74, Positive conditional cache size: 0, Positive unconditional cache size: 74, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - TimeoutResultAtElement [Line: 95]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 95). Cancelled while executing RemoveRedundantFlow. - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 10.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: TIMEOUT, OverallTime: 859197.5ms, OverallIterations: 348, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 670800.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 165.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 7612 SDtfs, 6239 SDslu, 6731 SDs, 0 SdLazy, 172607 SolverSat, 4845 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 54193.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4719 GetRequests, 156 SyntacticMatches, 472 SemanticMatches, 4091 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5469 ImplicationChecksByTransitivity, 41498.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=32902occurred in iteration=345, InterpolantAutomatonStates: 4455, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 170.0ms SsaConstructionTime, 589.6ms SatisfiabilityAnalysisTime, 32295.6ms InterpolantComputationTime, 9264 NumberOfCodeBlocks, 9264 NumberOfCodeBlocksAsserted, 348 NumberOfCheckSat, 8916 ConstructedInterpolants, 0 QuantifiedInterpolants, 109992 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 348 InterpolantComputations, 348 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown