/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-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 05:34:46,747 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 05:34:46,751 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 05:34:46,818 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-29 05:34:46,819 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-29 05:34:46,823 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-29 05:34:46,827 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-29 05:34:46,835 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-29 05:34:46,839 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-29 05:34:46,845 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-29 05:34:46,846 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-29 05:34:46,849 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-29 05:34:46,849 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 05:34:46,852 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 05:34:46,854 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 05:34:46,857 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 05:34:46,860 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 05:34:46,862 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 05:34:46,871 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 05:34:46,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 05:34:46,881 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 05:34:46,883 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 05:34:46,885 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 05:34:46,888 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 05:34:46,899 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 05:34:46,912 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 05:34:46,913 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 05:34:46,914 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 05:34:46,915 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-RepeatedSemanticLbeWithPredicates.epf [2021-04-29 05:34:46,973 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 05:34:46,973 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 05:34:46,977 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 05:34:46,977 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 05:34:46,977 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 05:34:46,978 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 05:34:46,978 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 05:34:46,978 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 05:34:46,978 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 05:34:46,979 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 05:34:46,980 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 05:34:46,980 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 05:34:46,981 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 05:34:46,981 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 05:34:46,981 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 05:34:46,981 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 05:34:46,982 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 05:34:46,982 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 05:34:46,982 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 05:34:46,982 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 05:34:46,983 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 05:34:46,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 05:34:46,983 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 05:34:46,984 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 05:34:46,984 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 05:34:46,984 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 05:34:46,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 05:34:46,985 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 05:34:46,985 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 05:34:46,985 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 05:34:46,985 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 05:34:47,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 05:34:47,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 05:34:47,432 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 05:34:47,434 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-04-29 05:34:47,440 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-04-29 05:34:47,442 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier.wvr.bpl [2021-04-29 05:34:47,444 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier.wvr.bpl' [2021-04-29 05:34:47,487 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 05:34:47,544 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-04-29 05:34:47,545 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 05:34:47,546 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 05:34:47,546 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 05:34:47,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:34:47" (1/1) ... [2021-04-29 05:34:47,571 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:34:47" (1/1) ... [2021-04-29 05:34:47,579 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 05:34:47,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 05:34:47,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 05:34:47,583 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 05:34:47,593 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:34:47" (1/1) ... [2021-04-29 05:34:47,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:34:47" (1/1) ... [2021-04-29 05:34:47,595 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:34:47" (1/1) ... [2021-04-29 05:34:47,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:34:47" (1/1) ... [2021-04-29 05:34:47,599 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:34:47" (1/1) ... [2021-04-29 05:34:47,600 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:34:47" (1/1) ... [2021-04-29 05:34:47,601 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:34:47" (1/1) ... [2021-04-29 05:34:47,603 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 05:34:47,604 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 05:34:47,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 05:34:47,605 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 05:34:47,606 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:34:47" (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 [2021-04-29 05:34:47,718 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-04-29 05:34:47,719 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-04-29 05:34:47,719 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-04-29 05:34:47,719 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-04-29 05:34:47,719 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-04-29 05:34:47,719 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-04-29 05:34:47,720 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-04-29 05:34:47,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 05:34:47,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 05:34:47,720 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-04-29 05:34:47,720 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-04-29 05:34:47,721 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-04-29 05:34:47,721 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-04-29 05:34:47,721 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-04-29 05:34:47,721 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-04-29 05:34:47,721 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2021-04-29 05:34:47,722 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2021-04-29 05:34:47,722 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2021-04-29 05:34:47,722 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2021-04-29 05:34:47,722 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2021-04-29 05:34:47,722 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2021-04-29 05:34:47,723 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-29 05:34:47,939 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 05:34:47,939 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-04-29 05:34:47,941 INFO L202 PluginConnector]: Adding new model barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 05:34:47 BoogieIcfgContainer [2021-04-29 05:34:47,941 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 05:34:47,943 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 05:34:47,943 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 05:34:47,947 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 05:34:47,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:34:47" (1/2) ... [2021-04-29 05:34:47,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3198aa98 and model type barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 05:34:47, skipping insertion in model container [2021-04-29 05:34:47,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 05:34:47" (2/2) ... [2021-04-29 05:34:47,951 INFO L111 eAbstractionObserver]: Analyzing ICFG barrier.wvr.bpl [2021-04-29 05:34:47,958 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 05:34:47,963 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 05:34:47,964 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 05:34:48,160 INFO L149 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2021-04-29 05:34:48,187 INFO L253 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-04-29 05:34:48,213 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 05:34:48,213 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 05:34:48,213 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 05:34:48,213 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 05:34:48,213 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 05:34:48,214 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 05:34:48,214 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 05:34:48,214 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 05:34:48,230 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 65 transitions, 202 flow [2021-04-29 05:34:48,284 INFO L129 PetriNetUnfolder]: 4/53 cut-off events. [2021-04-29 05:34:48,284 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-04-29 05:34:48,291 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. [2021-04-29 05:34:48,292 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 65 transitions, 202 flow [2021-04-29 05:34:48,299 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 51 transitions, 150 flow [2021-04-29 05:34:48,301 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:34:48,320 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 51 transitions, 150 flow [2021-04-29 05:34:48,323 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 51 transitions, 150 flow [2021-04-29 05:34:48,327 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 51 transitions, 150 flow [2021-04-29 05:34:48,355 INFO L129 PetriNetUnfolder]: 4/51 cut-off events. [2021-04-29 05:34:48,356 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-04-29 05:34:48,357 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. [2021-04-29 05:34:48,362 INFO L146 LiptonReduction]: Number of co-enabled transitions 1336 [2021-04-29 05:34:48,921 INFO L158 LiptonReduction]: Checked pairs total: 2330 [2021-04-29 05:34:48,922 INFO L160 LiptonReduction]: Total number of compositions: 13 [2021-04-29 05:34:48,925 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 626 [2021-04-29 05:34:48,951 INFO L129 PetriNetUnfolder]: 4/50 cut-off events. [2021-04-29 05:34:48,952 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-04-29 05:34:48,952 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:34:48,953 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, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:34:48,953 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]=== [2021-04-29 05:34:48,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:34:48,960 INFO L82 PathProgramCache]: Analyzing trace with hash -1729675932, now seen corresponding path program 1 times [2021-04-29 05:34:48,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:34:48,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561403423] [2021-04-29 05:34:48,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:34:49,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:34:49,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:34:49,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:34:49,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:34:49,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-04-29 05:34:49,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:34:49,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:34:49,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:34:49,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561403423] [2021-04-29 05:34:49,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:34:49,198 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 05:34:49,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339175703] [2021-04-29 05:34:49,209 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 05:34:49,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:34:49,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 05:34:49,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 05:34:49,228 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 82 [2021-04-29 05:34:49,232 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 51 transitions, 150 flow. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:34:49,232 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:34:49,232 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 82 [2021-04-29 05:34:49,234 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:34:49,278 INFO L129 PetriNetUnfolder]: 10/67 cut-off events. [2021-04-29 05:34:49,279 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-04-29 05:34:49,280 INFO L84 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 67 events. 10/67 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 191 event pairs, 4 based on Foata normal form. 1/44 useless extension candidates. Maximal degree in co-relation 97. Up to 14 conditions per place. [2021-04-29 05:34:49,282 INFO L132 encePairwiseOnDemand]: 78/82 looper letters, 4 selfloop transitions, 2 changer transitions 1/51 dead transitions. [2021-04-29 05:34:49,282 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 51 transitions, 162 flow [2021-04-29 05:34:49,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 05:34:49,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 05:34:49,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 230 transitions. [2021-04-29 05:34:49,301 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9349593495934959 [2021-04-29 05:34:49,302 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 230 transitions. [2021-04-29 05:34:49,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 230 transitions. [2021-04-29 05:34:49,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:34:49,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 230 transitions. [2021-04-29 05:34:49,315 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) [2021-04-29 05:34:49,323 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) [2021-04-29 05:34:49,323 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) [2021-04-29 05:34:49,325 INFO L185 Difference]: Start difference. First operand has 66 places, 51 transitions, 150 flow. Second operand 3 states and 230 transitions. [2021-04-29 05:34:49,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 51 transitions, 162 flow [2021-04-29 05:34:49,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 51 transitions, 127 flow, removed 0 selfloop flow, removed 13 redundant places. [2021-04-29 05:34:49,333 INFO L241 Difference]: Finished difference. Result has 56 places, 50 transitions, 123 flow [2021-04-29 05:34:49,335 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=123, PETRI_PLACES=56, PETRI_TRANSITIONS=50} [2021-04-29 05:34:49,336 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, -10 predicate places. [2021-04-29 05:34:49,336 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:34:49,337 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 50 transitions, 123 flow [2021-04-29 05:34:49,337 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 50 transitions, 123 flow [2021-04-29 05:34:49,338 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 50 transitions, 123 flow [2021-04-29 05:34:49,349 INFO L129 PetriNetUnfolder]: 4/50 cut-off events. [2021-04-29 05:34:49,349 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-04-29 05:34:49,350 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 50 events. 4/50 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 138 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 52. Up to 4 conditions per place. [2021-04-29 05:34:49,351 INFO L146 LiptonReduction]: Number of co-enabled transitions 1292 [2021-04-29 05:34:49,426 INFO L158 LiptonReduction]: Checked pairs total: 2192 [2021-04-29 05:34:49,426 INFO L160 LiptonReduction]: Total number of compositions: 2 [2021-04-29 05:34:49,428 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 92 [2021-04-29 05:34:49,435 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 50 transitions, 123 flow [2021-04-29 05:34:49,436 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:34:49,437 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:34:49,437 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:34:49,438 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 05:34:49,438 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]=== [2021-04-29 05:34:49,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:34:49,441 INFO L82 PathProgramCache]: Analyzing trace with hash 554976855, now seen corresponding path program 1 times [2021-04-29 05:34:49,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:34:49,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365814945] [2021-04-29 05:34:49,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:34:49,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:34:49,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:34:49,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:34:49,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:34:49,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-04-29 05:34:49,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:34:49,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:34:49,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:34:49,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365814945] [2021-04-29 05:34:49,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:34:49,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 05:34:49,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453091960] [2021-04-29 05:34:49,549 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 05:34:49,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:34:49,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 05:34:49,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 05:34:49,552 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 84 [2021-04-29 05:34:49,553 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 50 transitions, 123 flow. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:34:49,553 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:34:49,553 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 84 [2021-04-29 05:34:49,554 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:34:49,587 INFO L129 PetriNetUnfolder]: 10/66 cut-off events. [2021-04-29 05:34:49,588 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-04-29 05:34:49,589 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 66 events. 10/66 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 230 event pairs, 4 based on Foata normal form. 1/44 useless extension candidates. Maximal degree in co-relation 82. Up to 14 conditions per place. [2021-04-29 05:34:49,590 INFO L132 encePairwiseOnDemand]: 80/84 looper letters, 4 selfloop transitions, 2 changer transitions 0/50 dead transitions. [2021-04-29 05:34:49,590 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 50 transitions, 135 flow [2021-04-29 05:34:49,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 05:34:49,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 05:34:49,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 236 transitions. [2021-04-29 05:34:49,594 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9365079365079365 [2021-04-29 05:34:49,594 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 236 transitions. [2021-04-29 05:34:49,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 236 transitions. [2021-04-29 05:34:49,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:34:49,595 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 236 transitions. [2021-04-29 05:34:49,596 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:34:49,598 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:34:49,599 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:34:49,599 INFO L185 Difference]: Start difference. First operand has 55 places, 50 transitions, 123 flow. Second operand 3 states and 236 transitions. [2021-04-29 05:34:49,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 50 transitions, 135 flow [2021-04-29 05:34:49,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 50 transitions, 131 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 05:34:49,602 INFO L241 Difference]: Finished difference. Result has 56 places, 50 transitions, 129 flow [2021-04-29 05:34:49,603 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=129, PETRI_PLACES=56, PETRI_TRANSITIONS=50} [2021-04-29 05:34:49,604 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, -10 predicate places. [2021-04-29 05:34:49,604 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:34:49,604 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 50 transitions, 129 flow [2021-04-29 05:34:49,605 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 50 transitions, 129 flow [2021-04-29 05:34:49,605 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 56 places, 50 transitions, 129 flow [2021-04-29 05:34:49,616 INFO L129 PetriNetUnfolder]: 4/50 cut-off events. [2021-04-29 05:34:49,616 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-04-29 05:34:49,617 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 50 events. 4/50 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 142 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 55. Up to 4 conditions per place. [2021-04-29 05:34:49,618 INFO L146 LiptonReduction]: Number of co-enabled transitions 1268 [2021-04-29 05:34:49,686 INFO L158 LiptonReduction]: Checked pairs total: 1314 [2021-04-29 05:34:49,686 INFO L160 LiptonReduction]: Total number of compositions: 2 [2021-04-29 05:34:49,686 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 82 [2021-04-29 05:34:49,689 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 50 transitions, 129 flow [2021-04-29 05:34:49,690 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:34:49,690 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:34:49,690 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:34:49,690 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 05:34:49,691 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]=== [2021-04-29 05:34:49,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:34:49,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1325492668, now seen corresponding path program 1 times [2021-04-29 05:34:49,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:34:49,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943974356] [2021-04-29 05:34:49,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:34:49,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:34:49,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:34:49,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:34:49,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:34:49,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 05:34:49,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:34:49,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:34:49,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:34:49,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:34:49,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:34:49,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:34:49,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:34:49,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:34:49,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:34:49,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:34:50,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:34:50,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:34:50,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:34:50,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:34:50,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:34:50,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:34:50,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:34:50,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:34:50,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:34:50,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:34:50,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:34:50,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:34:50,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:34:50,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:34:50,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:34:50,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:34:50,199 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-04-29 05:34:50,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-29 05:34:50,231 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-04-29 05:34:50,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:34:50,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:34:50,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943974356] [2021-04-29 05:34:50,236 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:34:50,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-04-29 05:34:50,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636229258] [2021-04-29 05:34:50,237 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-04-29 05:34:50,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:34:50,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-04-29 05:34:50,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2021-04-29 05:34:50,241 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 86 [2021-04-29 05:34:50,243 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 50 transitions, 129 flow. Second operand has 16 states, 16 states have (on average 49.1875) internal successors, (787), 16 states have internal predecessors, (787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:34:50,244 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:34:50,244 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 86 [2021-04-29 05:34:50,244 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:34:53,361 INFO L129 PetriNetUnfolder]: 5206/8082 cut-off events. [2021-04-29 05:34:53,361 INFO L130 PetriNetUnfolder]: For 853/1133 co-relation queries the response was YES. [2021-04-29 05:34:53,392 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16557 conditions, 8082 events. 5206/8082 cut-off events. For 853/1133 co-relation queries the response was YES. Maximal size of possible extension queue 458. Compared 50571 event pairs, 2413 based on Foata normal form. 1/5234 useless extension candidates. Maximal degree in co-relation 16508. Up to 6095 conditions per place. [2021-04-29 05:34:53,434 INFO L132 encePairwiseOnDemand]: 59/86 looper letters, 62 selfloop transitions, 127 changer transitions 12/223 dead transitions. [2021-04-29 05:34:53,434 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 223 transitions, 958 flow [2021-04-29 05:34:53,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-04-29 05:34:53,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2021-04-29 05:34:53,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 1498 transitions. [2021-04-29 05:34:53,443 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6451335055986219 [2021-04-29 05:34:53,443 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 1498 transitions. [2021-04-29 05:34:53,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 1498 transitions. [2021-04-29 05:34:53,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:34:53,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 1498 transitions. [2021-04-29 05:34:53,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 55.48148148148148) internal successors, (1498), 27 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) [2021-04-29 05:34:53,460 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 86.0) internal successors, (2408), 28 states have internal predecessors, (2408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:34:53,461 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 86.0) internal successors, (2408), 28 states have internal predecessors, (2408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:34:53,461 INFO L185 Difference]: Start difference. First operand has 56 places, 50 transitions, 129 flow. Second operand 27 states and 1498 transitions. [2021-04-29 05:34:53,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 223 transitions, 958 flow [2021-04-29 05:34:53,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 223 transitions, 910 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 05:34:53,470 INFO L241 Difference]: Finished difference. Result has 94 places, 178 transitions, 853 flow [2021-04-29 05:34:53,471 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=853, PETRI_PLACES=94, PETRI_TRANSITIONS=178} [2021-04-29 05:34:53,471 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 28 predicate places. [2021-04-29 05:34:53,471 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:34:53,471 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 178 transitions, 853 flow [2021-04-29 05:34:53,472 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 178 transitions, 853 flow [2021-04-29 05:34:53,473 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 94 places, 178 transitions, 853 flow [2021-04-29 05:34:53,966 INFO L129 PetriNetUnfolder]: 2465/4282 cut-off events. [2021-04-29 05:34:53,966 INFO L130 PetriNetUnfolder]: For 641/656 co-relation queries the response was YES. [2021-04-29 05:34:53,997 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9013 conditions, 4282 events. 2465/4282 cut-off events. For 641/656 co-relation queries the response was YES. Maximal size of possible extension queue 404. Compared 30777 event pairs, 727 based on Foata normal form. 0/2382 useless extension candidates. Maximal degree in co-relation 8953. Up to 2916 conditions per place. [2021-04-29 05:34:54,059 INFO L146 LiptonReduction]: Number of co-enabled transitions 2510 [2021-04-29 05:34:54,400 INFO L158 LiptonReduction]: Checked pairs total: 10 [2021-04-29 05:34:54,401 INFO L160 LiptonReduction]: Total number of compositions: 2 [2021-04-29 05:34:54,401 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 930 [2021-04-29 05:34:54,403 INFO L480 AbstractCegarLoop]: Abstraction has has 95 places, 179 transitions, 857 flow [2021-04-29 05:34:54,404 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 49.1875) internal successors, (787), 16 states have internal predecessors, (787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:34:54,404 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:34:54,404 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:34:54,404 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 05:34:54,404 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]=== [2021-04-29 05:34:54,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:34:54,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1460689092, now seen corresponding path program 1 times [2021-04-29 05:34:54,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:34:54,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667104309] [2021-04-29 05:34:54,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:34:54,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:34:54,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:34:54,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:34:54,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:34:54,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-04-29 05:34:54,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:34:54,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:34:54,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:34:54,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667104309] [2021-04-29 05:34:54,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:34:54,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 05:34:54,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325572533] [2021-04-29 05:34:54,434 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 05:34:54,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:34:54,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 05:34:54,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 05:34:54,436 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 88 [2021-04-29 05:34:54,436 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 179 transitions, 857 flow. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:34:54,437 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:34:54,437 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 88 [2021-04-29 05:34:54,437 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:34:54,934 INFO L129 PetriNetUnfolder]: 2093/3690 cut-off events. [2021-04-29 05:34:54,934 INFO L130 PetriNetUnfolder]: For 1113/1234 co-relation queries the response was YES. [2021-04-29 05:34:54,959 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8337 conditions, 3690 events. 2093/3690 cut-off events. For 1113/1234 co-relation queries the response was YES. Maximal size of possible extension queue 288. Compared 25538 event pairs, 977 based on Foata normal form. 131/2374 useless extension candidates. Maximal degree in co-relation 8271. Up to 2473 conditions per place. [2021-04-29 05:34:54,984 INFO L132 encePairwiseOnDemand]: 84/88 looper letters, 13 selfloop transitions, 17 changer transitions 0/166 dead transitions. [2021-04-29 05:34:54,984 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 166 transitions, 850 flow [2021-04-29 05:34:54,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 05:34:54,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 05:34:54,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 244 transitions. [2021-04-29 05:34:54,986 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9242424242424242 [2021-04-29 05:34:54,987 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 244 transitions. [2021-04-29 05:34:54,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 244 transitions. [2021-04-29 05:34:54,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:34:54,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 244 transitions. [2021-04-29 05:34:54,988 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:34:54,989 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) [2021-04-29 05:34:54,990 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) [2021-04-29 05:34:54,990 INFO L185 Difference]: Start difference. First operand has 95 places, 179 transitions, 857 flow. Second operand 3 states and 244 transitions. [2021-04-29 05:34:54,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 166 transitions, 850 flow [2021-04-29 05:34:55,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 166 transitions, 845 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-04-29 05:34:55,028 INFO L241 Difference]: Finished difference. Result has 94 places, 166 transitions, 844 flow [2021-04-29 05:34:55,029 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=785, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=844, PETRI_PLACES=94, PETRI_TRANSITIONS=166} [2021-04-29 05:34:55,029 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 28 predicate places. [2021-04-29 05:34:55,029 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:34:55,030 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 166 transitions, 844 flow [2021-04-29 05:34:55,030 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 166 transitions, 844 flow [2021-04-29 05:34:55,032 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 94 places, 166 transitions, 844 flow [2021-04-29 05:34:55,379 INFO L129 PetriNetUnfolder]: 1810/3196 cut-off events. [2021-04-29 05:34:55,380 INFO L130 PetriNetUnfolder]: For 797/883 co-relation queries the response was YES. [2021-04-29 05:34:55,402 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7466 conditions, 3196 events. 1810/3196 cut-off events. For 797/883 co-relation queries the response was YES. Maximal size of possible extension queue 280. Compared 22215 event pairs, 498 based on Foata normal form. 0/1954 useless extension candidates. Maximal degree in co-relation 7409. Up to 2185 conditions per place. [2021-04-29 05:34:55,449 INFO L146 LiptonReduction]: Number of co-enabled transitions 2290 [2021-04-29 05:34:55,471 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:34:55,471 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:34:55,472 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 443 [2021-04-29 05:34:55,473 INFO L480 AbstractCegarLoop]: Abstraction has has 94 places, 166 transitions, 844 flow [2021-04-29 05:34:55,474 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:34:55,474 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:34:55,474 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:34:55,474 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 05:34:55,475 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]=== [2021-04-29 05:34:55,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:34:55,475 INFO L82 PathProgramCache]: Analyzing trace with hash -46391648, now seen corresponding path program 2 times [2021-04-29 05:34:55,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:34:55,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665014404] [2021-04-29 05:34:55,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:34:55,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:34:55,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:34:55,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:34:55,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:34:55,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-04-29 05:34:55,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:34:55,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:34:55,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:34:55,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665014404] [2021-04-29 05:34:55,502 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:34:55,502 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 05:34:55,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131176511] [2021-04-29 05:34:55,503 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 05:34:55,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:34:55,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 05:34:55,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 05:34:55,505 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 88 [2021-04-29 05:34:55,505 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 166 transitions, 844 flow. Second operand has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:34:55,505 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:34:55,506 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 88 [2021-04-29 05:34:55,506 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:34:55,813 INFO L129 PetriNetUnfolder]: 1515/2794 cut-off events. [2021-04-29 05:34:55,813 INFO L130 PetriNetUnfolder]: For 889/1001 co-relation queries the response was YES. [2021-04-29 05:34:55,830 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6631 conditions, 2794 events. 1515/2794 cut-off events. For 889/1001 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 19556 event pairs, 763 based on Foata normal form. 27/1822 useless extension candidates. Maximal degree in co-relation 6579. Up to 1842 conditions per place. [2021-04-29 05:34:55,846 INFO L132 encePairwiseOnDemand]: 84/88 looper letters, 8 selfloop transitions, 6 changer transitions 0/162 dead transitions. [2021-04-29 05:34:55,846 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 162 transitions, 850 flow [2021-04-29 05:34:55,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 05:34:55,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 05:34:55,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 248 transitions. [2021-04-29 05:34:55,848 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9393939393939394 [2021-04-29 05:34:55,848 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 248 transitions. [2021-04-29 05:34:55,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 248 transitions. [2021-04-29 05:34:55,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:34:55,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 248 transitions. [2021-04-29 05:34:55,850 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) [2021-04-29 05:34:55,851 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) [2021-04-29 05:34:55,851 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) [2021-04-29 05:34:55,851 INFO L185 Difference]: Start difference. First operand has 94 places, 166 transitions, 844 flow. Second operand 3 states and 248 transitions. [2021-04-29 05:34:55,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 162 transitions, 850 flow [2021-04-29 05:34:55,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 162 transitions, 816 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 05:34:55,874 INFO L241 Difference]: Finished difference. Result has 95 places, 162 transitions, 810 flow [2021-04-29 05:34:55,874 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=788, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=810, PETRI_PLACES=95, PETRI_TRANSITIONS=162} [2021-04-29 05:34:55,874 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 29 predicate places. [2021-04-29 05:34:55,875 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:34:55,875 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 162 transitions, 810 flow [2021-04-29 05:34:55,879 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 162 transitions, 810 flow [2021-04-29 05:34:55,880 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 95 places, 162 transitions, 810 flow [2021-04-29 05:34:56,097 INFO L129 PetriNetUnfolder]: 1214/2269 cut-off events. [2021-04-29 05:34:56,098 INFO L130 PetriNetUnfolder]: For 476/560 co-relation queries the response was YES. [2021-04-29 05:34:56,111 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5183 conditions, 2269 events. 1214/2269 cut-off events. For 476/560 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 15441 event pairs, 337 based on Foata normal form. 0/1331 useless extension candidates. Maximal degree in co-relation 5126. Up to 1496 conditions per place. [2021-04-29 05:34:56,145 INFO L146 LiptonReduction]: Number of co-enabled transitions 2082 [2021-04-29 05:34:56,165 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:34:56,166 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:34:56,166 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 291 [2021-04-29 05:34:56,168 INFO L480 AbstractCegarLoop]: Abstraction has has 95 places, 162 transitions, 810 flow [2021-04-29 05:34:56,169 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:34:56,169 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:34:56,169 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:34:56,169 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 05:34:56,169 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]=== [2021-04-29 05:34:56,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:34:56,170 INFO L82 PathProgramCache]: Analyzing trace with hash 1554521258, now seen corresponding path program 3 times [2021-04-29 05:34:56,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:34:56,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325578509] [2021-04-29 05:34:56,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:34:56,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:34:56,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:34:56,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:34:56,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:34:56,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 05:34:56,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:34:56,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 05:34:56,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:34:56,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:34:56,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:34:56,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 05:34:56,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:34:56,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:34:56,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:34:56,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:34:56,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:34:56,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:34:56,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:34:56,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:34:56,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:34:56,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 05:34:56,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:34:56,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 05:34:56,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:34:56,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:34:56,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:34:56,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:34:56,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:34:56,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:34:56,550 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-04-29 05:34:56,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-29 05:34:56,582 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-04-29 05:34:56,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:34:56,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:34:56,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325578509] [2021-04-29 05:34:56,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:34:56,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-04-29 05:34:56,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266786339] [2021-04-29 05:34:56,589 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-04-29 05:34:56,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:34:56,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-04-29 05:34:56,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2021-04-29 05:34:56,592 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 88 [2021-04-29 05:34:56,594 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 162 transitions, 810 flow. Second operand has 16 states, 16 states have (on average 49.125) internal successors, (786), 16 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:34:56,594 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:34:56,594 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 88 [2021-04-29 05:34:56,594 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:35:00,845 INFO L129 PetriNetUnfolder]: 3530/5857 cut-off events. [2021-04-29 05:35:00,845 INFO L130 PetriNetUnfolder]: For 6701/7341 co-relation queries the response was YES. [2021-04-29 05:35:00,877 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18913 conditions, 5857 events. 3530/5857 cut-off events. For 6701/7341 co-relation queries the response was YES. Maximal size of possible extension queue 313. Compared 37436 event pairs, 1266 based on Foata normal form. 5/4000 useless extension candidates. Maximal degree in co-relation 18836. Up to 3853 conditions per place. [2021-04-29 05:35:00,915 INFO L132 encePairwiseOnDemand]: 61/88 looper letters, 171 selfloop transitions, 131 changer transitions 129/453 dead transitions. [2021-04-29 05:35:00,915 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 453 transitions, 3117 flow [2021-04-29 05:35:00,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-04-29 05:35:00,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2021-04-29 05:35:00,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 2879 transitions. [2021-04-29 05:35:00,929 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6172813036020584 [2021-04-29 05:35:00,929 INFO L72 ComplementDD]: Start complementDD. Operand 53 states and 2879 transitions. [2021-04-29 05:35:00,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 2879 transitions. [2021-04-29 05:35:00,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:35:00,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 53 states and 2879 transitions. [2021-04-29 05:35:00,946 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 54 states, 53 states have (on average 54.320754716981135) internal successors, (2879), 53 states have internal predecessors, (2879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:35:00,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 54 states, 54 states have (on average 88.0) internal successors, (4752), 54 states have internal predecessors, (4752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:35:00,961 INFO L81 ComplementDD]: Finished complementDD. Result has 54 states, 54 states have (on average 88.0) internal successors, (4752), 54 states have internal predecessors, (4752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:35:00,961 INFO L185 Difference]: Start difference. First operand has 95 places, 162 transitions, 810 flow. Second operand 53 states and 2879 transitions. [2021-04-29 05:35:00,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 453 transitions, 3117 flow [2021-04-29 05:35:00,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 453 transitions, 3081 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 05:35:00,998 INFO L241 Difference]: Finished difference. Result has 170 places, 296 transitions, 1938 flow [2021-04-29 05:35:00,999 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=798, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=53, PETRI_FLOW=1938, PETRI_PLACES=170, PETRI_TRANSITIONS=296} [2021-04-29 05:35:00,999 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 104 predicate places. [2021-04-29 05:35:00,999 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:35:01,000 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 170 places, 296 transitions, 1938 flow [2021-04-29 05:35:01,000 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 170 places, 296 transitions, 1938 flow [2021-04-29 05:35:01,003 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 155 places, 296 transitions, 1938 flow [2021-04-29 05:35:01,439 INFO L129 PetriNetUnfolder]: 2006/3456 cut-off events. [2021-04-29 05:35:01,440 INFO L130 PetriNetUnfolder]: For 9765/10352 co-relation queries the response was YES. [2021-04-29 05:35:01,470 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12644 conditions, 3456 events. 2006/3456 cut-off events. For 9765/10352 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 22773 event pairs, 908 based on Foata normal form. 9/2067 useless extension candidates. Maximal degree in co-relation 12559. Up to 2308 conditions per place. [2021-04-29 05:35:01,529 INFO L146 LiptonReduction]: Number of co-enabled transitions 2642 [2021-04-29 05:35:01,602 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:35:01,602 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:35:01,602 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 603 [2021-04-29 05:35:01,604 INFO L480 AbstractCegarLoop]: Abstraction has has 155 places, 296 transitions, 1938 flow [2021-04-29 05:35:01,604 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 49.125) internal successors, (786), 16 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:35:01,605 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:35:01,605 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:35:01,605 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-29 05:35:01,605 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]=== [2021-04-29 05:35:01,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:35:01,606 INFO L82 PathProgramCache]: Analyzing trace with hash 1091253530, now seen corresponding path program 4 times [2021-04-29 05:35:01,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:35:01,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365141761] [2021-04-29 05:35:01,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:35:01,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:35:01,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:01,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:35:01,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:01,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 05:35:01,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:01,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 05:35:01,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:01,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:35:01,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:01,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-29 05:35:01,736 INFO L142 QuantifierPusher]: treesize reduction 4, result has 85.7 percent of original size [2021-04-29 05:35:01,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-04-29 05:35:01,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:01,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:35:01,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:01,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:35:01,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:01,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:35:01,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:01,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 05:35:01,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:01,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 05:35:01,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:01,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:35:01,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:01,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:35:01,949 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-04-29 05:35:01,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-29 05:35:01,985 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-04-29 05:35:01,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-29 05:35:02,021 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-04-29 05:35:02,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:35:02,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:35:02,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365141761] [2021-04-29 05:35:02,027 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:35:02,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-04-29 05:35:02,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864574663] [2021-04-29 05:35:02,028 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-04-29 05:35:02,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:35:02,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-04-29 05:35:02,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2021-04-29 05:35:02,031 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 88 [2021-04-29 05:35:02,032 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 296 transitions, 1938 flow. Second operand has 17 states, 17 states have (on average 49.05882352941177) internal successors, (834), 17 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) [2021-04-29 05:35:02,032 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:35:02,032 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 88 [2021-04-29 05:35:02,033 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:35:11,794 INFO L129 PetriNetUnfolder]: 4956/8323 cut-off events. [2021-04-29 05:35:11,794 INFO L130 PetriNetUnfolder]: For 36794/37990 co-relation queries the response was YES. [2021-04-29 05:35:11,847 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37968 conditions, 8323 events. 4956/8323 cut-off events. For 36794/37990 co-relation queries the response was YES. Maximal size of possible extension queue 374. Compared 56783 event pairs, 1314 based on Foata normal form. 5/5713 useless extension candidates. Maximal degree in co-relation 37863. Up to 4962 conditions per place. [2021-04-29 05:35:11,884 INFO L132 encePairwiseOnDemand]: 60/88 looper letters, 359 selfloop transitions, 428 changer transitions 194/1003 dead transitions. [2021-04-29 05:35:11,884 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 1003 transitions, 9764 flow [2021-04-29 05:35:11,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2021-04-29 05:35:11,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2021-04-29 05:35:11,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 5489 transitions. [2021-04-29 05:35:11,906 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6300505050505051 [2021-04-29 05:35:11,906 INFO L72 ComplementDD]: Start complementDD. Operand 99 states and 5489 transitions. [2021-04-29 05:35:11,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 99 states and 5489 transitions. [2021-04-29 05:35:11,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:35:11,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 99 states and 5489 transitions. [2021-04-29 05:35:11,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 100 states, 99 states have (on average 55.44444444444444) internal successors, (5489), 99 states have internal predecessors, (5489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:35:11,943 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 100 states, 100 states have (on average 88.0) internal successors, (8800), 100 states have internal predecessors, (8800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:35:11,948 INFO L81 ComplementDD]: Finished complementDD. Result has 100 states, 100 states have (on average 88.0) internal successors, (8800), 100 states have internal predecessors, (8800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:35:11,949 INFO L185 Difference]: Start difference. First operand has 155 places, 296 transitions, 1938 flow. Second operand 99 states and 5489 transitions. [2021-04-29 05:35:11,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 1003 transitions, 9764 flow [2021-04-29 05:35:12,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 1003 transitions, 8945 flow, removed 394 selfloop flow, removed 11 redundant places. [2021-04-29 05:35:12,375 INFO L241 Difference]: Finished difference. Result has 298 places, 762 transitions, 6653 flow [2021-04-29 05:35:12,376 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=1672, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=99, PETRI_FLOW=6653, PETRI_PLACES=298, PETRI_TRANSITIONS=762} [2021-04-29 05:35:12,376 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 232 predicate places. [2021-04-29 05:35:12,376 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:35:12,377 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 298 places, 762 transitions, 6653 flow [2021-04-29 05:35:12,377 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 298 places, 762 transitions, 6653 flow [2021-04-29 05:35:12,383 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 286 places, 762 transitions, 6653 flow [2021-04-29 05:35:13,695 INFO L129 PetriNetUnfolder]: 3746/6594 cut-off events. [2021-04-29 05:35:13,696 INFO L130 PetriNetUnfolder]: For 182354/183622 co-relation queries the response was YES. [2021-04-29 05:35:13,769 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37100 conditions, 6594 events. 3746/6594 cut-off events. For 182354/183622 co-relation queries the response was YES. Maximal size of possible extension queue 359. Compared 46991 event pairs, 828 based on Foata normal form. 7/4574 useless extension candidates. Maximal degree in co-relation 36959. Up to 3556 conditions per place. [2021-04-29 05:35:14,150 INFO L146 LiptonReduction]: Number of co-enabled transitions 5498 [2021-04-29 05:35:14,439 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:35:14,440 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:35:14,440 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2064 [2021-04-29 05:35:14,445 INFO L480 AbstractCegarLoop]: Abstraction has has 286 places, 762 transitions, 6653 flow [2021-04-29 05:35:14,446 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 49.05882352941177) internal successors, (834), 17 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) [2021-04-29 05:35:14,446 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:35:14,446 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:35:14,446 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-29 05:35:14,447 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]=== [2021-04-29 05:35:14,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:35:14,447 INFO L82 PathProgramCache]: Analyzing trace with hash 817762528, now seen corresponding path program 5 times [2021-04-29 05:35:14,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:35:14,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234785999] [2021-04-29 05:35:14,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:35:14,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:35:14,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:14,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:35:14,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:14,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 05:35:14,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:14,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:35:14,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:14,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:35:14,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:14,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:35:14,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:14,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:35:14,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:14,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:35:14,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:14,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:35:14,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:14,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:35:14,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:14,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 05:35:14,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:14,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 05:35:14,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:14,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:35:14,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:14,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:35:14,837 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-04-29 05:35:14,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-29 05:35:14,877 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-04-29 05:35:14,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-29 05:35:14,920 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-04-29 05:35:14,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:35:14,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:35:14,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234785999] [2021-04-29 05:35:14,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:35:14,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-04-29 05:35:14,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224298751] [2021-04-29 05:35:14,930 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-04-29 05:35:14,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:35:14,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-04-29 05:35:14,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2021-04-29 05:35:14,934 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 88 [2021-04-29 05:35:14,935 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 762 transitions, 6653 flow. Second operand has 17 states, 17 states have (on average 49.05882352941177) internal successors, (834), 17 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) [2021-04-29 05:35:14,936 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:35:14,936 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 88 [2021-04-29 05:35:14,936 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:35:23,599 INFO L129 PetriNetUnfolder]: 5640/9492 cut-off events. [2021-04-29 05:35:23,599 INFO L130 PetriNetUnfolder]: For 324461/325943 co-relation queries the response was YES. [2021-04-29 05:35:23,704 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66184 conditions, 9492 events. 5640/9492 cut-off events. For 324461/325943 co-relation queries the response was YES. Maximal size of possible extension queue 447. Compared 67022 event pairs, 1099 based on Foata normal form. 16/6862 useless extension candidates. Maximal degree in co-relation 66029. Up to 6666 conditions per place. [2021-04-29 05:35:23,755 INFO L132 encePairwiseOnDemand]: 63/88 looper letters, 766 selfloop transitions, 370 changer transitions 46/1204 dead transitions. [2021-04-29 05:35:23,755 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 1204 transitions, 16470 flow [2021-04-29 05:35:23,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-04-29 05:35:23,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2021-04-29 05:35:23,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 4113 transitions. [2021-04-29 05:35:23,764 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.614982057416268 [2021-04-29 05:35:23,764 INFO L72 ComplementDD]: Start complementDD. Operand 76 states and 4113 transitions. [2021-04-29 05:35:23,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 76 states and 4113 transitions. [2021-04-29 05:35:23,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:35:23,767 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 76 states and 4113 transitions. [2021-04-29 05:35:23,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 77 states, 76 states have (on average 54.11842105263158) internal successors, (4113), 76 states have internal predecessors, (4113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:35:23,788 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 77 states, 77 states have (on average 88.0) internal successors, (6776), 77 states have internal predecessors, (6776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:35:23,792 INFO L81 ComplementDD]: Finished complementDD. Result has 77 states, 77 states have (on average 88.0) internal successors, (6776), 77 states have internal predecessors, (6776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:35:23,792 INFO L185 Difference]: Start difference. First operand has 286 places, 762 transitions, 6653 flow. Second operand 76 states and 4113 transitions. [2021-04-29 05:35:23,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 1204 transitions, 16470 flow [2021-04-29 05:35:29,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 1204 transitions, 14157 flow, removed 1142 selfloop flow, removed 12 redundant places. [2021-04-29 05:35:29,277 INFO L241 Difference]: Finished difference. Result has 364 places, 1132 transitions, 11549 flow [2021-04-29 05:35:29,279 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=4960, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=762, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=712, PETRI_DIFFERENCE_SUBTRAHEND_STATES=76, PETRI_FLOW=11549, PETRI_PLACES=364, PETRI_TRANSITIONS=1132} [2021-04-29 05:35:29,279 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 298 predicate places. [2021-04-29 05:35:29,279 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:35:29,279 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 364 places, 1132 transitions, 11549 flow [2021-04-29 05:35:29,280 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 364 places, 1132 transitions, 11549 flow [2021-04-29 05:35:29,292 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 364 places, 1132 transitions, 11549 flow [2021-04-29 05:35:31,317 INFO L129 PetriNetUnfolder]: 4780/8193 cut-off events. [2021-04-29 05:35:31,317 INFO L130 PetriNetUnfolder]: For 239077/240741 co-relation queries the response was YES. [2021-04-29 05:35:31,417 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49492 conditions, 8193 events. 4780/8193 cut-off events. For 239077/240741 co-relation queries the response was YES. Maximal size of possible extension queue 456. Compared 58954 event pairs, 814 based on Foata normal form. 26/5739 useless extension candidates. Maximal degree in co-relation 49342. Up to 4315 conditions per place. [2021-04-29 05:35:31,658 INFO L146 LiptonReduction]: Number of co-enabled transitions 7294 [2021-04-29 05:35:32,048 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:35:32,048 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:35:32,048 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2769 [2021-04-29 05:35:32,050 INFO L480 AbstractCegarLoop]: Abstraction has has 364 places, 1132 transitions, 11549 flow [2021-04-29 05:35:32,050 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 49.05882352941177) internal successors, (834), 17 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) [2021-04-29 05:35:32,050 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:35:32,050 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:35:32,051 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-29 05:35:32,051 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]=== [2021-04-29 05:35:32,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:35:32,051 INFO L82 PathProgramCache]: Analyzing trace with hash 214496930, now seen corresponding path program 6 times [2021-04-29 05:35:32,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:35:32,052 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193585246] [2021-04-29 05:35:32,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:35:32,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:35:32,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:32,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:35:32,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:32,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 05:35:32,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:32,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:35:32,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:32,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:35:32,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:32,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:35:32,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:32,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:35:32,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:32,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:35:32,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:32,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:35:32,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:32,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:35:32,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:32,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:35:32,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:32,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:35:32,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:32,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:35:32,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:32,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:35:32,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:32,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:35:32,401 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-04-29 05:35:32,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-29 05:35:32,448 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-04-29 05:35:32,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:35:32,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:35:32,455 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193585246] [2021-04-29 05:35:32,455 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:35:32,455 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-04-29 05:35:32,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895268465] [2021-04-29 05:35:32,456 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-04-29 05:35:32,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:35:32,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-04-29 05:35:32,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2021-04-29 05:35:32,458 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 88 [2021-04-29 05:35:32,459 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 1132 transitions, 11549 flow. Second operand has 17 states, 17 states have (on average 49.05882352941177) internal successors, (834), 17 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) [2021-04-29 05:35:32,460 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:35:32,460 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 88 [2021-04-29 05:35:32,460 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:35:38,961 INFO L129 PetriNetUnfolder]: 5787/9834 cut-off events. [2021-04-29 05:35:38,962 INFO L130 PetriNetUnfolder]: For 324253/325915 co-relation queries the response was YES. [2021-04-29 05:35:39,138 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70824 conditions, 9834 events. 5787/9834 cut-off events. For 324253/325915 co-relation queries the response was YES. Maximal size of possible extension queue 450. Compared 69696 event pairs, 890 based on Foata normal form. 21/7260 useless extension candidates. Maximal degree in co-relation 70646. Up to 7574 conditions per place. [2021-04-29 05:35:39,197 INFO L132 encePairwiseOnDemand]: 63/88 looper letters, 1093 selfloop transitions, 155 changer transitions 64/1334 dead transitions. [2021-04-29 05:35:39,197 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 1334 transitions, 18225 flow [2021-04-29 05:35:39,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-04-29 05:35:39,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2021-04-29 05:35:39,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 1822 transitions. [2021-04-29 05:35:39,204 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6274104683195593 [2021-04-29 05:35:39,204 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 1822 transitions. [2021-04-29 05:35:39,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 1822 transitions. [2021-04-29 05:35:39,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:35:39,205 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 1822 transitions. [2021-04-29 05:35:39,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 55.21212121212121) internal successors, (1822), 33 states have internal predecessors, (1822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:35:39,214 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 88.0) internal successors, (2992), 34 states have internal predecessors, (2992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:35:39,215 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 88.0) internal successors, (2992), 34 states have internal predecessors, (2992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:35:39,215 INFO L185 Difference]: Start difference. First operand has 364 places, 1132 transitions, 11549 flow. Second operand 33 states and 1822 transitions. [2021-04-29 05:35:39,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 1334 transitions, 18225 flow [2021-04-29 05:35:43,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 1334 transitions, 13911 flow, removed 2146 selfloop flow, removed 2 redundant places. [2021-04-29 05:35:43,629 INFO L241 Difference]: Finished difference. Result has 411 places, 1227 transitions, 9823 flow [2021-04-29 05:35:43,630 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=7359, PETRI_DIFFERENCE_MINUEND_PLACES=362, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1075, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=9823, PETRI_PLACES=411, PETRI_TRANSITIONS=1227} [2021-04-29 05:35:43,630 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 345 predicate places. [2021-04-29 05:35:43,630 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:35:43,631 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 411 places, 1227 transitions, 9823 flow [2021-04-29 05:35:43,631 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 411 places, 1227 transitions, 9823 flow [2021-04-29 05:35:43,641 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 409 places, 1227 transitions, 9823 flow [2021-04-29 05:35:45,389 INFO L129 PetriNetUnfolder]: 4693/8163 cut-off events. [2021-04-29 05:35:45,390 INFO L130 PetriNetUnfolder]: For 242623/244476 co-relation queries the response was YES. [2021-04-29 05:35:45,481 INFO L84 FinitePrefix]: Finished finitePrefix Result has 50936 conditions, 8163 events. 4693/8163 cut-off events. For 242623/244476 co-relation queries the response was YES. Maximal size of possible extension queue 433. Compared 59803 event pairs, 868 based on Foata normal form. 18/5812 useless extension candidates. Maximal degree in co-relation 50750. Up to 3815 conditions per place. [2021-04-29 05:35:45,560 INFO L146 LiptonReduction]: Number of co-enabled transitions 8044 [2021-04-29 05:35:46,700 INFO L158 LiptonReduction]: Checked pairs total: 12 [2021-04-29 05:35:46,700 INFO L160 LiptonReduction]: Total number of compositions: 4 [2021-04-29 05:35:46,700 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3070 [2021-04-29 05:35:46,701 INFO L480 AbstractCegarLoop]: Abstraction has has 411 places, 1229 transitions, 9834 flow [2021-04-29 05:35:46,701 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 49.05882352941177) internal successors, (834), 17 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) [2021-04-29 05:35:46,701 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:35:46,702 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, 1, 1, 1, 1, 1] [2021-04-29 05:35:46,702 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-29 05:35:46,702 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]=== [2021-04-29 05:35:46,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:35:46,702 INFO L82 PathProgramCache]: Analyzing trace with hash -1745809726, now seen corresponding path program 7 times [2021-04-29 05:35:46,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:35:46,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829305832] [2021-04-29 05:35:46,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:35:46,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:35:46,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:46,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:35:46,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:46,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 05:35:46,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:46,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:35:46,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:46,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:35:46,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:46,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:35:46,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:46,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:35:46,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:46,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:35:46,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:46,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:35:46,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:46,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:35:46,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:46,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:35:46,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:46,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:35:46,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:46,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:35:46,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:46,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:35:47,014 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-04-29 05:35:47,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-29 05:35:47,047 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-04-29 05:35:47,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-29 05:35:47,083 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-04-29 05:35:47,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:35:47,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:35:47,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829305832] [2021-04-29 05:35:47,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:35:47,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-04-29 05:35:47,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277260660] [2021-04-29 05:35:47,089 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-04-29 05:35:47,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:35:47,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-04-29 05:35:47,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2021-04-29 05:35:47,092 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 92 [2021-04-29 05:35:47,093 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 1229 transitions, 9834 flow. Second operand has 17 states, 17 states have (on average 49.05882352941177) internal successors, (834), 17 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) [2021-04-29 05:35:47,093 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:35:47,093 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 92 [2021-04-29 05:35:47,093 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:35:54,375 INFO L129 PetriNetUnfolder]: 5721/9697 cut-off events. [2021-04-29 05:35:54,375 INFO L130 PetriNetUnfolder]: For 311969/313627 co-relation queries the response was YES. [2021-04-29 05:35:54,493 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71824 conditions, 9697 events. 5721/9697 cut-off events. For 311969/313627 co-relation queries the response was YES. Maximal size of possible extension queue 488. Compared 68946 event pairs, 1264 based on Foata normal form. 43/7224 useless extension candidates. Maximal degree in co-relation 71622. Up to 7606 conditions per place. [2021-04-29 05:35:54,553 INFO L132 encePairwiseOnDemand]: 65/92 looper letters, 1175 selfloop transitions, 197 changer transitions 25/1419 dead transitions. [2021-04-29 05:35:54,553 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 443 places, 1419 transitions, 16313 flow [2021-04-29 05:35:54,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-04-29 05:35:54,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2021-04-29 05:35:54,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 1833 transitions. [2021-04-29 05:35:54,559 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6037549407114624 [2021-04-29 05:35:54,559 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 1833 transitions. [2021-04-29 05:35:54,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 1833 transitions. [2021-04-29 05:35:54,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:35:54,560 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 1833 transitions. [2021-04-29 05:35:54,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 55.54545454545455) internal successors, (1833), 33 states have internal predecessors, (1833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:35:54,569 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 92.0) internal successors, (3128), 34 states have internal predecessors, (3128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:35:54,570 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 92.0) internal successors, (3128), 34 states have internal predecessors, (3128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:35:54,570 INFO L185 Difference]: Start difference. First operand has 411 places, 1229 transitions, 9834 flow. Second operand 33 states and 1833 transitions. [2021-04-29 05:35:54,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 443 places, 1419 transitions, 16313 flow [2021-04-29 05:36:00,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 442 places, 1419 transitions, 15071 flow, removed 614 selfloop flow, removed 1 redundant places. [2021-04-29 05:36:00,611 INFO L241 Difference]: Finished difference. Result has 453 places, 1364 transitions, 11706 flow [2021-04-29 05:36:00,613 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=8654, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=11706, PETRI_PLACES=453, PETRI_TRANSITIONS=1364} [2021-04-29 05:36:00,613 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 387 predicate places. [2021-04-29 05:36:00,613 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:36:00,614 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 453 places, 1364 transitions, 11706 flow [2021-04-29 05:36:00,614 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 453 places, 1364 transitions, 11706 flow [2021-04-29 05:36:00,625 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 451 places, 1364 transitions, 11706 flow [2021-04-29 05:36:02,708 INFO L129 PetriNetUnfolder]: 5222/9020 cut-off events. [2021-04-29 05:36:02,708 INFO L130 PetriNetUnfolder]: For 267186/269244 co-relation queries the response was YES. [2021-04-29 05:36:02,848 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58339 conditions, 9020 events. 5222/9020 cut-off events. For 267186/269244 co-relation queries the response was YES. Maximal size of possible extension queue 501. Compared 66143 event pairs, 984 based on Foata normal form. 8/6362 useless extension candidates. Maximal degree in co-relation 58134. Up to 4132 conditions per place. [2021-04-29 05:36:03,227 INFO L146 LiptonReduction]: Number of co-enabled transitions 8934 [2021-04-29 05:36:03,689 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:36:03,690 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:36:03,690 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3077 [2021-04-29 05:36:03,691 INFO L480 AbstractCegarLoop]: Abstraction has has 451 places, 1364 transitions, 11706 flow [2021-04-29 05:36:03,692 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 49.05882352941177) internal successors, (834), 17 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) [2021-04-29 05:36:03,692 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:36:03,692 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, 1, 1, 1, 1] [2021-04-29 05:36:03,692 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-29 05:36:03,692 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]=== [2021-04-29 05:36:03,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:36:03,693 INFO L82 PathProgramCache]: Analyzing trace with hash -1432214682, now seen corresponding path program 1 times [2021-04-29 05:36:03,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:36:03,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160586974] [2021-04-29 05:36:03,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:36:03,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:36:03,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:03,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:36:03,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:03,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 05:36:03,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:03,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:36:03,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:03,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:36:03,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:03,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:36:03,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:03,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:36:03,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:03,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:36:03,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:03,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:36:03,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:03,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:36:03,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:03,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:36:03,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:03,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:36:03,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:03,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:36:03,970 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-04-29 05:36:03,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-29 05:36:04,002 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-04-29 05:36:04,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-29 05:36:04,046 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-04-29 05:36:04,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:36:04,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:36:04,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160586974] [2021-04-29 05:36:04,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:36:04,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-04-29 05:36:04,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846490161] [2021-04-29 05:36:04,051 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-04-29 05:36:04,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:36:04,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-04-29 05:36:04,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2021-04-29 05:36:04,053 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 92 [2021-04-29 05:36:04,054 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 1364 transitions, 11706 flow. Second operand has 16 states, 16 states have (on average 49.0625) internal successors, (785), 16 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:36:04,054 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:36:04,054 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 92 [2021-04-29 05:36:04,055 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:36:11,391 INFO L129 PetriNetUnfolder]: 6217/10524 cut-off events. [2021-04-29 05:36:11,391 INFO L130 PetriNetUnfolder]: For 350911/352711 co-relation queries the response was YES. [2021-04-29 05:36:11,568 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82031 conditions, 10524 events. 6217/10524 cut-off events. For 350911/352711 co-relation queries the response was YES. Maximal size of possible extension queue 523. Compared 75306 event pairs, 929 based on Foata normal form. 19/7797 useless extension candidates. Maximal degree in co-relation 81810. Up to 8250 conditions per place. [2021-04-29 05:36:11,636 INFO L132 encePairwiseOnDemand]: 64/92 looper letters, 1268 selfloop transitions, 272 changer transitions 34/1596 dead transitions. [2021-04-29 05:36:11,637 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 483 places, 1596 transitions, 19341 flow [2021-04-29 05:36:11,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-04-29 05:36:11,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2021-04-29 05:36:11,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 1829 transitions. [2021-04-29 05:36:11,641 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.602437417654809 [2021-04-29 05:36:11,641 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 1829 transitions. [2021-04-29 05:36:11,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 1829 transitions. [2021-04-29 05:36:11,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:36:11,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 1829 transitions. [2021-04-29 05:36:11,646 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 55.42424242424242) internal successors, (1829), 33 states have internal predecessors, (1829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:36:11,651 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 92.0) internal successors, (3128), 34 states have internal predecessors, (3128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:36:11,652 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 92.0) internal successors, (3128), 34 states have internal predecessors, (3128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:36:11,652 INFO L185 Difference]: Start difference. First operand has 451 places, 1364 transitions, 11706 flow. Second operand 33 states and 1829 transitions. [2021-04-29 05:36:11,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 483 places, 1596 transitions, 19341 flow [2021-04-29 05:36:16,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 482 places, 1596 transitions, 17883 flow, removed 722 selfloop flow, removed 1 redundant places. [2021-04-29 05:36:16,503 INFO L241 Difference]: Finished difference. Result has 489 places, 1520 transitions, 14399 flow [2021-04-29 05:36:16,504 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=10248, PETRI_DIFFERENCE_MINUEND_PLACES=450, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1364, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=140, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=14399, PETRI_PLACES=489, PETRI_TRANSITIONS=1520} [2021-04-29 05:36:16,505 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 423 predicate places. [2021-04-29 05:36:16,505 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:36:16,505 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 489 places, 1520 transitions, 14399 flow [2021-04-29 05:36:16,505 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 489 places, 1520 transitions, 14399 flow [2021-04-29 05:36:16,519 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 489 places, 1520 transitions, 14399 flow [2021-04-29 05:36:18,892 INFO L129 PetriNetUnfolder]: 5483/9499 cut-off events. [2021-04-29 05:36:18,892 INFO L130 PetriNetUnfolder]: For 319730/321963 co-relation queries the response was YES. [2021-04-29 05:36:19,057 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66477 conditions, 9499 events. 5483/9499 cut-off events. For 319730/321963 co-relation queries the response was YES. Maximal size of possible extension queue 564. Compared 70435 event pairs, 676 based on Foata normal form. 23/6863 useless extension candidates. Maximal degree in co-relation 66257. Up to 4610 conditions per place. [2021-04-29 05:36:19,167 INFO L146 LiptonReduction]: Number of co-enabled transitions 9812 [2021-04-29 05:36:19,941 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:36:19,941 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:36:19,941 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3436 [2021-04-29 05:36:19,942 INFO L480 AbstractCegarLoop]: Abstraction has has 489 places, 1520 transitions, 14399 flow [2021-04-29 05:36:19,942 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 49.0625) internal successors, (785), 16 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:36:19,942 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:36:19,942 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:36:19,942 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-29 05:36:19,943 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]=== [2021-04-29 05:36:19,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:36:19,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1657439078, now seen corresponding path program 2 times [2021-04-29 05:36:19,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:36:19,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099661655] [2021-04-29 05:36:19,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:36:19,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:36:19,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:19,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:36:19,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:19,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 05:36:19,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:19,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:36:20,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:20,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:36:20,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:20,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:36:20,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:20,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:36:20,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:20,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:36:20,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:20,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:36:20,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:20,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:36:20,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:20,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:36:20,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:20,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:36:20,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:20,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:36:20,210 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-04-29 05:36:20,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-29 05:36:20,246 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-04-29 05:36:20,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-29 05:36:20,286 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-04-29 05:36:20,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:36:20,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:36:20,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099661655] [2021-04-29 05:36:20,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:36:20,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-04-29 05:36:20,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717312590] [2021-04-29 05:36:20,292 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-04-29 05:36:20,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:36:20,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-04-29 05:36:20,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2021-04-29 05:36:20,294 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 92 [2021-04-29 05:36:20,295 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 489 places, 1520 transitions, 14399 flow. Second operand has 16 states, 16 states have (on average 49.0625) internal successors, (785), 16 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:36:20,295 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:36:20,295 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 92 [2021-04-29 05:36:20,295 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:36:27,833 INFO L129 PetriNetUnfolder]: 6091/10439 cut-off events. [2021-04-29 05:36:27,834 INFO L130 PetriNetUnfolder]: For 380843/382710 co-relation queries the response was YES. [2021-04-29 05:36:27,991 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84250 conditions, 10439 events. 6091/10439 cut-off events. For 380843/382710 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 76112 event pairs, 888 based on Foata normal form. 21/7837 useless extension candidates. Maximal degree in co-relation 84014. Up to 8269 conditions per place. [2021-04-29 05:36:28,041 INFO L132 encePairwiseOnDemand]: 64/92 looper letters, 1340 selfloop transitions, 225 changer transitions 8/1595 dead transitions. [2021-04-29 05:36:28,041 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 513 places, 1595 transitions, 19534 flow [2021-04-29 05:36:28,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-04-29 05:36:28,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2021-04-29 05:36:28,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 1380 transitions. [2021-04-29 05:36:28,045 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6 [2021-04-29 05:36:28,045 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 1380 transitions. [2021-04-29 05:36:28,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 1380 transitions. [2021-04-29 05:36:28,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:36:28,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 1380 transitions. [2021-04-29 05:36:28,048 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 55.2) internal successors, (1380), 25 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:36:28,052 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 92.0) internal successors, (2392), 26 states have internal predecessors, (2392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:36:28,052 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 92.0) internal successors, (2392), 26 states have internal predecessors, (2392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:36:28,053 INFO L185 Difference]: Start difference. First operand has 489 places, 1520 transitions, 14399 flow. Second operand 25 states and 1380 transitions. [2021-04-29 05:36:28,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 513 places, 1595 transitions, 19534 flow [2021-04-29 05:36:33,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 506 places, 1595 transitions, 16859 flow, removed 1272 selfloop flow, removed 7 redundant places. [2021-04-29 05:36:33,638 INFO L241 Difference]: Finished difference. Result has 514 places, 1547 transitions, 13248 flow [2021-04-29 05:36:33,640 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=11958, PETRI_DIFFERENCE_MINUEND_PLACES=482, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1520, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=200, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1311, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=13248, PETRI_PLACES=514, PETRI_TRANSITIONS=1547} [2021-04-29 05:36:33,640 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 448 predicate places. [2021-04-29 05:36:33,640 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:36:33,640 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 514 places, 1547 transitions, 13248 flow [2021-04-29 05:36:33,641 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 514 places, 1547 transitions, 13248 flow [2021-04-29 05:36:33,653 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 514 places, 1547 transitions, 13248 flow [2021-04-29 05:36:36,077 INFO L129 PetriNetUnfolder]: 5749/10026 cut-off events. [2021-04-29 05:36:36,078 INFO L130 PetriNetUnfolder]: For 335417/337703 co-relation queries the response was YES. [2021-04-29 05:36:36,258 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68953 conditions, 10026 events. 5749/10026 cut-off events. For 335417/337703 co-relation queries the response was YES. Maximal size of possible extension queue 596. Compared 76108 event pairs, 772 based on Foata normal form. 19/7194 useless extension candidates. Maximal degree in co-relation 68717. Up to 4408 conditions per place. [2021-04-29 05:36:36,367 INFO L146 LiptonReduction]: Number of co-enabled transitions 10152 [2021-04-29 05:36:36,932 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:36:36,932 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:36:36,932 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3292 [2021-04-29 05:36:36,933 INFO L480 AbstractCegarLoop]: Abstraction has has 514 places, 1547 transitions, 13248 flow [2021-04-29 05:36:36,933 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 49.0625) internal successors, (785), 16 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:36:36,933 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:36:36,933 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, 1, 1, 1, 1, 1] [2021-04-29 05:36:36,934 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-04-29 05:36:36,934 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]=== [2021-04-29 05:36:36,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:36:36,934 INFO L82 PathProgramCache]: Analyzing trace with hash -1049742114, now seen corresponding path program 3 times [2021-04-29 05:36:36,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:36:36,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900120980] [2021-04-29 05:36:36,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:36:36,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:36:36,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:36,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:36:36,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:36,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 05:36:36,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:36,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:36:36,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:36,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:36:37,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:37,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:36:37,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:37,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:36:37,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:37,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 05:36:37,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:37,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 05:36:37,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:37,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 05:36:37,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:37,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:36:37,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:37,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:36:37,152 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-04-29 05:36:37,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-29 05:36:37,165 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-04-29 05:36:37,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-29 05:36:37,173 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-04-29 05:36:37,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-29 05:36:37,203 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-04-29 05:36:37,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:36:37,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:36:37,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900120980] [2021-04-29 05:36:37,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:36:37,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-04-29 05:36:37,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011454202] [2021-04-29 05:36:37,209 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-04-29 05:36:37,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:36:37,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-04-29 05:36:37,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2021-04-29 05:36:37,211 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 92 [2021-04-29 05:36:37,212 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 514 places, 1547 transitions, 13248 flow. Second operand has 13 states, 13 states have (on average 49.30769230769231) internal successors, (641), 13 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) [2021-04-29 05:36:37,212 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:36:37,212 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 92 [2021-04-29 05:36:37,212 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:36:46,155 INFO L129 PetriNetUnfolder]: 6695/11355 cut-off events. [2021-04-29 05:36:46,155 INFO L130 PetriNetUnfolder]: For 473767/475824 co-relation queries the response was YES. [2021-04-29 05:36:46,328 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95894 conditions, 11355 events. 6695/11355 cut-off events. For 473767/475824 co-relation queries the response was YES. Maximal size of possible extension queue 573. Compared 82360 event pairs, 966 based on Foata normal form. 3/8489 useless extension candidates. Maximal degree in co-relation 95642. Up to 8859 conditions per place. [2021-04-29 05:36:46,385 INFO L132 encePairwiseOnDemand]: 62/92 looper letters, 1379 selfloop transitions, 340 changer transitions 32/1773 dead transitions. [2021-04-29 05:36:46,385 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 551 places, 1773 transitions, 22202 flow [2021-04-29 05:36:46,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-04-29 05:36:46,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2021-04-29 05:36:46,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 2083 transitions. [2021-04-29 05:36:46,389 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5958237986270023 [2021-04-29 05:36:46,389 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 2083 transitions. [2021-04-29 05:36:46,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 2083 transitions. [2021-04-29 05:36:46,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:36:46,390 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 2083 transitions. [2021-04-29 05:36:46,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 54.81578947368421) internal successors, (2083), 38 states have internal predecessors, (2083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:36:46,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 92.0) internal successors, (3588), 39 states have internal predecessors, (3588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:36:46,400 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 92.0) internal successors, (3588), 39 states have internal predecessors, (3588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:36:46,400 INFO L185 Difference]: Start difference. First operand has 514 places, 1547 transitions, 13248 flow. Second operand 38 states and 2083 transitions. [2021-04-29 05:36:46,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 551 places, 1773 transitions, 22202 flow [2021-04-29 05:36:52,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 543 places, 1773 transitions, 21494 flow, removed 262 selfloop flow, removed 8 redundant places. [2021-04-29 05:36:52,205 INFO L241 Difference]: Finished difference. Result has 559 places, 1704 transitions, 17320 flow [2021-04-29 05:36:52,206 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=12560, PETRI_DIFFERENCE_MINUEND_PLACES=506, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1547, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=194, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1336, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=17320, PETRI_PLACES=559, PETRI_TRANSITIONS=1704} [2021-04-29 05:36:52,206 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 493 predicate places. [2021-04-29 05:36:52,207 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:36:52,207 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 559 places, 1704 transitions, 17320 flow [2021-04-29 05:36:52,207 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 559 places, 1704 transitions, 17320 flow [2021-04-29 05:36:52,222 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 556 places, 1704 transitions, 17320 flow [2021-04-29 05:36:55,398 INFO L129 PetriNetUnfolder]: 6145/10714 cut-off events. [2021-04-29 05:36:55,398 INFO L130 PetriNetUnfolder]: For 446270/448525 co-relation queries the response was YES. [2021-04-29 05:36:55,619 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81430 conditions, 10714 events. 6145/10714 cut-off events. For 446270/448525 co-relation queries the response was YES. Maximal size of possible extension queue 647. Compared 81860 event pairs, 725 based on Foata normal form. 15/7776 useless extension candidates. Maximal degree in co-relation 81170. Up to 4764 conditions per place. [2021-04-29 05:36:55,778 INFO L146 LiptonReduction]: Number of co-enabled transitions 10692 [2021-04-29 05:36:56,490 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:36:56,490 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:36:56,490 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4283 [2021-04-29 05:36:56,491 INFO L480 AbstractCegarLoop]: Abstraction has has 556 places, 1704 transitions, 17320 flow [2021-04-29 05:36:56,491 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 49.30769230769231) internal successors, (641), 13 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) [2021-04-29 05:36:56,491 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:36:56,491 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:36:56,491 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-04-29 05:36:56,491 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]=== [2021-04-29 05:36:56,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:36:56,492 INFO L82 PathProgramCache]: Analyzing trace with hash -887659306, now seen corresponding path program 4 times [2021-04-29 05:36:56,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:36:56,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189299078] [2021-04-29 05:36:56,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:36:56,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:36:56,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:56,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:36:56,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:56,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 05:36:56,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:56,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:36:56,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:56,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:36:56,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:56,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:36:56,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:56,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:36:56,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:56,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:36:56,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:56,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 05:36:56,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:56,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 05:36:56,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:36:56,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:36:56,728 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-04-29 05:36:56,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-29 05:36:56,734 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-04-29 05:36:56,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-29 05:36:56,769 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-04-29 05:36:56,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-29 05:36:56,802 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-04-29 05:36:56,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-29 05:36:56,837 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-04-29 05:36:56,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:36:56,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:36:56,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189299078] [2021-04-29 05:36:56,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:36:56,844 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-04-29 05:36:56,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041287568] [2021-04-29 05:36:56,845 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-04-29 05:36:56,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:36:56,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-04-29 05:36:56,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2021-04-29 05:36:56,846 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 92 [2021-04-29 05:36:56,847 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 556 places, 1704 transitions, 17320 flow. Second operand has 15 states, 15 states have (on average 49.13333333333333) internal successors, (737), 15 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) [2021-04-29 05:36:56,847 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:36:56,847 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 92 [2021-04-29 05:36:56,848 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:37:08,617 INFO L129 PetriNetUnfolder]: 7243/12344 cut-off events. [2021-04-29 05:37:08,618 INFO L130 PetriNetUnfolder]: For 572190/574442 co-relation queries the response was YES. [2021-04-29 05:37:08,932 INFO L84 FinitePrefix]: Finished finitePrefix Result has 110527 conditions, 12344 events. 7243/12344 cut-off events. For 572190/574442 co-relation queries the response was YES. Maximal size of possible extension queue 661. Compared 91549 event pairs, 1018 based on Foata normal form. 42/9218 useless extension candidates. Maximal degree in co-relation 110215. Up to 9387 conditions per place. [2021-04-29 05:37:09,008 INFO L132 encePairwiseOnDemand]: 62/92 looper letters, 1478 selfloop transitions, 594 changer transitions 135/2229 dead transitions. [2021-04-29 05:37:09,008 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 613 places, 2229 transitions, 31739 flow [2021-04-29 05:37:09,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-04-29 05:37:09,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2021-04-29 05:37:09,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 3187 transitions. [2021-04-29 05:37:09,015 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.597263868065967 [2021-04-29 05:37:09,015 INFO L72 ComplementDD]: Start complementDD. Operand 58 states and 3187 transitions. [2021-04-29 05:37:09,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 3187 transitions. [2021-04-29 05:37:09,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:37:09,017 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 58 states and 3187 transitions. [2021-04-29 05:37:09,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 59 states, 58 states have (on average 54.94827586206897) internal successors, (3187), 58 states have internal predecessors, (3187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:37:09,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 59 states, 59 states have (on average 92.0) internal successors, (5428), 59 states have internal predecessors, (5428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:37:09,032 INFO L81 ComplementDD]: Finished complementDD. Result has 59 states, 59 states have (on average 92.0) internal successors, (5428), 59 states have internal predecessors, (5428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:37:09,032 INFO L185 Difference]: Start difference. First operand has 556 places, 1704 transitions, 17320 flow. Second operand 58 states and 3187 transitions. [2021-04-29 05:37:09,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 613 places, 2229 transitions, 31739 flow [2021-04-29 05:37:17,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 608 places, 2229 transitions, 28958 flow, removed 1378 selfloop flow, removed 5 redundant places. [2021-04-29 05:37:18,003 INFO L241 Difference]: Finished difference. Result has 634 places, 2044 transitions, 23222 flow [2021-04-29 05:37:18,005 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=15111, PETRI_DIFFERENCE_MINUEND_PLACES=551, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1704, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=266, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=58, PETRI_FLOW=23222, PETRI_PLACES=634, PETRI_TRANSITIONS=2044} [2021-04-29 05:37:18,005 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 568 predicate places. [2021-04-29 05:37:18,005 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:37:18,005 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 634 places, 2044 transitions, 23222 flow [2021-04-29 05:37:18,006 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 634 places, 2044 transitions, 23222 flow [2021-04-29 05:37:18,025 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 627 places, 2044 transitions, 23222 flow [2021-04-29 05:37:22,005 INFO L129 PetriNetUnfolder]: 6487/11211 cut-off events. [2021-04-29 05:37:22,005 INFO L130 PetriNetUnfolder]: For 538580/542105 co-relation queries the response was YES. [2021-04-29 05:37:22,245 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90297 conditions, 11211 events. 6487/11211 cut-off events. For 538580/542105 co-relation queries the response was YES. Maximal size of possible extension queue 701. Compared 85441 event pairs, 861 based on Foata normal form. 18/8126 useless extension candidates. Maximal degree in co-relation 89959. Up to 5135 conditions per place. [2021-04-29 05:37:22,378 INFO L146 LiptonReduction]: Number of co-enabled transitions 11900 [2021-04-29 05:37:23,580 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:37:23,581 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:37:23,581 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5576 [2021-04-29 05:37:23,582 INFO L480 AbstractCegarLoop]: Abstraction has has 627 places, 2044 transitions, 23222 flow [2021-04-29 05:37:23,582 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 49.13333333333333) internal successors, (737), 15 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) [2021-04-29 05:37:23,582 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:37:23,582 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:37:23,583 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-04-29 05:37:23,583 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]=== [2021-04-29 05:37:23,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:37:23,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1388179090, now seen corresponding path program 5 times [2021-04-29 05:37:23,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:37:23,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983827984] [2021-04-29 05:37:23,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:37:23,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:37:23,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:37:23,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:37:23,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:37:23,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 05:37:23,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:37:23,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:37:23,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:37:23,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:37:23,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:37:23,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:37:23,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:37:23,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:37:23,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:37:23,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:37:23,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:37:23,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:37:23,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:37:23,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:37:23,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:37:23,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:37:23,871 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-04-29 05:37:23,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-29 05:37:23,876 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-04-29 05:37:23,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-29 05:37:23,907 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-04-29 05:37:23,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-29 05:37:23,915 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-04-29 05:37:23,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-29 05:37:23,947 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-04-29 05:37:23,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:37:23,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:37:23,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983827984] [2021-04-29 05:37:23,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:37:23,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-04-29 05:37:23,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458109273] [2021-04-29 05:37:23,954 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-29 05:37:23,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:37:23,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-29 05:37:23,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2021-04-29 05:37:23,956 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 92 [2021-04-29 05:37:23,956 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 627 places, 2044 transitions, 23222 flow. Second operand has 14 states, 14 states have (on average 49.214285714285715) internal successors, (689), 14 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) [2021-04-29 05:37:23,957 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:37:23,957 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 92 [2021-04-29 05:37:23,957 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:37:34,654 INFO L129 PetriNetUnfolder]: 7108/12083 cut-off events. [2021-04-29 05:37:34,654 INFO L130 PetriNetUnfolder]: For 643903/646122 co-relation queries the response was YES. [2021-04-29 05:37:34,939 INFO L84 FinitePrefix]: Finished finitePrefix Result has 112428 conditions, 12083 events. 7108/12083 cut-off events. For 643903/646122 co-relation queries the response was YES. Maximal size of possible extension queue 668. Compared 89350 event pairs, 1086 based on Foata normal form. 7/9095 useless extension candidates. Maximal degree in co-relation 112071. Up to 9488 conditions per place. [2021-04-29 05:37:35,010 INFO L132 encePairwiseOnDemand]: 64/92 looper letters, 1571 selfloop transitions, 619 changer transitions 3/2215 dead transitions. [2021-04-29 05:37:35,010 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 654 places, 2215 transitions, 31991 flow [2021-04-29 05:37:35,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-04-29 05:37:35,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2021-04-29 05:37:35,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 1567 transitions. [2021-04-29 05:37:35,012 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6083074534161491 [2021-04-29 05:37:35,013 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 1567 transitions. [2021-04-29 05:37:35,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 1567 transitions. [2021-04-29 05:37:35,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:37:35,014 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 1567 transitions. [2021-04-29 05:37:35,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 55.964285714285715) internal successors, (1567), 28 states have internal predecessors, (1567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:37:35,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 92.0) internal successors, (2668), 29 states have internal predecessors, (2668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:37:35,020 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 92.0) internal successors, (2668), 29 states have internal predecessors, (2668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:37:35,020 INFO L185 Difference]: Start difference. First operand has 627 places, 2044 transitions, 23222 flow. Second operand 28 states and 1567 transitions. [2021-04-29 05:37:35,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 654 places, 2215 transitions, 31991 flow [2021-04-29 05:37:45,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 640 places, 2215 transitions, 28475 flow, removed 1663 selfloop flow, removed 14 redundant places. [2021-04-29 05:37:45,263 INFO L241 Difference]: Finished difference. Result has 648 places, 2176 transitions, 24691 flow [2021-04-29 05:37:45,265 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=19956, PETRI_DIFFERENCE_MINUEND_PLACES=613, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2044, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=503, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1510, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=24691, PETRI_PLACES=648, PETRI_TRANSITIONS=2176} [2021-04-29 05:37:45,265 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 582 predicate places. [2021-04-29 05:37:45,265 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:37:45,265 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 648 places, 2176 transitions, 24691 flow [2021-04-29 05:37:45,265 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 648 places, 2176 transitions, 24691 flow [2021-04-29 05:37:45,279 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 648 places, 2176 transitions, 24691 flow [2021-04-29 05:37:48,847 INFO L129 PetriNetUnfolder]: 6645/11449 cut-off events. [2021-04-29 05:37:48,847 INFO L130 PetriNetUnfolder]: For 571680/575505 co-relation queries the response was YES. [2021-04-29 05:37:49,287 INFO L84 FinitePrefix]: Finished finitePrefix Result has 93873 conditions, 11449 events. 6645/11449 cut-off events. For 571680/575505 co-relation queries the response was YES. Maximal size of possible extension queue 690. Compared 87184 event pairs, 940 based on Foata normal form. 10/8322 useless extension candidates. Maximal degree in co-relation 93535. Up to 5125 conditions per place. [2021-04-29 05:37:49,814 INFO L146 LiptonReduction]: Number of co-enabled transitions 12562 [2021-04-29 05:37:50,761 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:37:50,761 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:37:50,761 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5496 [2021-04-29 05:37:50,762 INFO L480 AbstractCegarLoop]: Abstraction has has 648 places, 2176 transitions, 24691 flow [2021-04-29 05:37:50,762 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 49.214285714285715) internal successors, (689), 14 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) [2021-04-29 05:37:50,763 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:37:50,763 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:37:50,763 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-04-29 05:37:50,763 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]=== [2021-04-29 05:37:50,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:37:50,763 INFO L82 PathProgramCache]: Analyzing trace with hash 1454739242, now seen corresponding path program 6 times [2021-04-29 05:37:50,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:37:50,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255069573] [2021-04-29 05:37:50,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:37:50,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:37:50,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:37:50,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:37:50,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:37:50,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 05:37:50,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:37:50,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:37:50,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:37:50,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:37:50,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:37:50,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:37:50,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:37:50,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:37:50,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:37:50,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:37:50,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:37:50,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 05:37:50,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:37:50,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 05:37:50,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:37:50,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:37:50,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:37:50,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:37:51,004 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-04-29 05:37:51,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-29 05:37:51,036 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-04-29 05:37:51,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-29 05:37:51,044 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-04-29 05:37:51,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-29 05:37:51,078 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-04-29 05:37:51,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:37:51,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:37:51,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255069573] [2021-04-29 05:37:51,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:37:51,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-04-29 05:37:51,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464562619] [2021-04-29 05:37:51,084 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-04-29 05:37:51,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:37:51,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-04-29 05:37:51,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2021-04-29 05:37:51,086 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 92 [2021-04-29 05:37:51,087 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 648 places, 2176 transitions, 24691 flow. Second operand has 15 states, 15 states have (on average 49.13333333333333) internal successors, (737), 15 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) [2021-04-29 05:37:51,087 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:37:51,087 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 92 [2021-04-29 05:37:51,087 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:38:04,233 INFO L129 PetriNetUnfolder]: 7676/12979 cut-off events. [2021-04-29 05:38:04,234 INFO L130 PetriNetUnfolder]: For 799391/801853 co-relation queries the response was YES. [2021-04-29 05:38:04,715 INFO L84 FinitePrefix]: Finished finitePrefix Result has 128314 conditions, 12979 events. 7676/12979 cut-off events. For 799391/801853 co-relation queries the response was YES. Maximal size of possible extension queue 726. Compared 96429 event pairs, 1020 based on Foata normal form. 7/9724 useless extension candidates. Maximal degree in co-relation 127957. Up to 9508 conditions per place. [2021-04-29 05:38:04,796 INFO L132 encePairwiseOnDemand]: 63/92 looper letters, 1536 selfloop transitions, 817 changer transitions 33/2408 dead transitions. [2021-04-29 05:38:04,796 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 692 places, 2408 transitions, 37703 flow [2021-04-29 05:38:04,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-04-29 05:38:04,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2021-04-29 05:38:04,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 2460 transitions. [2021-04-29 05:38:04,799 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5942028985507246 [2021-04-29 05:38:04,799 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 2460 transitions. [2021-04-29 05:38:04,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 2460 transitions. [2021-04-29 05:38:04,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:38:04,800 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 2460 transitions. [2021-04-29 05:38:04,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 54.666666666666664) internal successors, (2460), 45 states have internal predecessors, (2460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:38:04,809 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 92.0) internal successors, (4232), 46 states have internal predecessors, (4232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:38:04,810 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 92.0) internal successors, (4232), 46 states have internal predecessors, (4232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:38:04,810 INFO L185 Difference]: Start difference. First operand has 648 places, 2176 transitions, 24691 flow. Second operand 45 states and 2460 transitions. [2021-04-29 05:38:04,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 692 places, 2408 transitions, 37703 flow [2021-04-29 05:38:17,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 685 places, 2408 transitions, 35724 flow, removed 891 selfloop flow, removed 7 redundant places. [2021-04-29 05:38:17,706 INFO L241 Difference]: Finished difference. Result has 692 places, 2320 transitions, 29824 flow [2021-04-29 05:38:17,708 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=22738, PETRI_DIFFERENCE_MINUEND_PLACES=641, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=661, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1504, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=29824, PETRI_PLACES=692, PETRI_TRANSITIONS=2320} [2021-04-29 05:38:17,709 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 626 predicate places. [2021-04-29 05:38:17,709 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:38:17,709 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 692 places, 2320 transitions, 29824 flow [2021-04-29 05:38:17,709 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 692 places, 2320 transitions, 29824 flow [2021-04-29 05:38:17,730 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 692 places, 2320 transitions, 29824 flow [2021-04-29 05:38:23,040 INFO L129 PetriNetUnfolder]: 7156/12313 cut-off events. [2021-04-29 05:38:23,040 INFO L130 PetriNetUnfolder]: For 784818/787925 co-relation queries the response was YES. [2021-04-29 05:38:23,520 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111288 conditions, 12313 events. 7156/12313 cut-off events. For 784818/787925 co-relation queries the response was YES. Maximal size of possible extension queue 792. Compared 95054 event pairs, 760 based on Foata normal form. 15/9013 useless extension candidates. Maximal degree in co-relation 110934. Up to 5644 conditions per place. [2021-04-29 05:38:23,694 INFO L146 LiptonReduction]: Number of co-enabled transitions 13326 [2021-04-29 05:38:25,204 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:38:25,204 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:38:25,204 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7495 [2021-04-29 05:38:25,205 INFO L480 AbstractCegarLoop]: Abstraction has has 692 places, 2320 transitions, 29824 flow [2021-04-29 05:38:25,206 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 49.13333333333333) internal successors, (737), 15 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) [2021-04-29 05:38:25,206 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:38:25,206 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:38:25,206 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-04-29 05:38:25,207 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]=== [2021-04-29 05:38:25,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:38:25,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1948496328, now seen corresponding path program 7 times [2021-04-29 05:38:25,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:38:25,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917509482] [2021-04-29 05:38:25,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:38:25,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:38:25,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:38:25,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:38:25,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:38:25,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 05:38:25,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:38:25,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:38:25,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:38:25,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:38:25,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:38:25,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:38:25,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:38:25,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:38:25,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:38:25,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 05:38:25,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:38:25,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 05:38:25,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:38:25,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 05:38:25,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:38:25,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:38:25,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:38:25,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:38:25,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:38:25,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:38:25,492 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-04-29 05:38:25,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-29 05:38:25,529 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-04-29 05:38:25,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-29 05:38:25,570 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-04-29 05:38:25,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:38:25,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:38:25,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917509482] [2021-04-29 05:38:25,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:38:25,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-04-29 05:38:25,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126783118] [2021-04-29 05:38:25,575 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-04-29 05:38:25,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:38:25,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-04-29 05:38:25,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2021-04-29 05:38:25,576 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 92 [2021-04-29 05:38:25,577 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 692 places, 2320 transitions, 29824 flow. Second operand has 15 states, 15 states have (on average 49.13333333333333) internal successors, (737), 15 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) [2021-04-29 05:38:25,577 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:38:25,577 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 92 [2021-04-29 05:38:25,577 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:38:39,827 INFO L129 PetriNetUnfolder]: 8017/13501 cut-off events. [2021-04-29 05:38:39,827 INFO L130 PetriNetUnfolder]: For 900286/902868 co-relation queries the response was YES. [2021-04-29 05:38:40,345 INFO L84 FinitePrefix]: Finished finitePrefix Result has 137851 conditions, 13501 events. 8017/13501 cut-off events. For 900286/902868 co-relation queries the response was YES. Maximal size of possible extension queue 764. Compared 100065 event pairs, 1031 based on Foata normal form. 24/10158 useless extension candidates. Maximal degree in co-relation 137478. Up to 10747 conditions per place. [2021-04-29 05:38:40,435 INFO L132 encePairwiseOnDemand]: 63/92 looper letters, 1933 selfloop transitions, 717 changer transitions 4/2676 dead transitions. [2021-04-29 05:38:40,436 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 725 places, 2676 transitions, 42451 flow [2021-04-29 05:38:40,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-04-29 05:38:40,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2021-04-29 05:38:40,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 1884 transitions. [2021-04-29 05:38:40,439 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6023017902813299 [2021-04-29 05:38:40,439 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 1884 transitions. [2021-04-29 05:38:40,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 1884 transitions. [2021-04-29 05:38:40,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:38:40,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 1884 transitions. [2021-04-29 05:38:40,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 55.411764705882355) internal successors, (1884), 34 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) [2021-04-29 05:38:40,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 92.0) internal successors, (3220), 35 states have internal predecessors, (3220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:38:40,447 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 92.0) internal successors, (3220), 35 states have internal predecessors, (3220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:38:40,447 INFO L185 Difference]: Start difference. First operand has 692 places, 2320 transitions, 29824 flow. Second operand 34 states and 1884 transitions. [2021-04-29 05:38:40,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 725 places, 2676 transitions, 42451 flow [2021-04-29 05:38:59,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 712 places, 2676 transitions, 38436 flow, removed 1909 selfloop flow, removed 13 redundant places. [2021-04-29 05:38:59,334 INFO L241 Difference]: Finished difference. Result has 725 places, 2619 transitions, 34254 flow [2021-04-29 05:38:59,337 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=26605, PETRI_DIFFERENCE_MINUEND_PLACES=679, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=486, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1793, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=34254, PETRI_PLACES=725, PETRI_TRANSITIONS=2619} [2021-04-29 05:38:59,337 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 659 predicate places. [2021-04-29 05:38:59,337 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:38:59,337 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 725 places, 2619 transitions, 34254 flow [2021-04-29 05:38:59,338 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 725 places, 2619 transitions, 34254 flow [2021-04-29 05:38:59,358 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 725 places, 2619 transitions, 34254 flow [2021-04-29 05:39:04,783 INFO L129 PetriNetUnfolder]: 7610/12967 cut-off events. [2021-04-29 05:39:04,784 INFO L130 PetriNetUnfolder]: For 820894/825009 co-relation queries the response was YES. [2021-04-29 05:39:05,185 INFO L84 FinitePrefix]: Finished finitePrefix Result has 115266 conditions, 12967 events. 7610/12967 cut-off events. For 820894/825009 co-relation queries the response was YES. Maximal size of possible extension queue 802. Compared 99625 event pairs, 906 based on Foata normal form. 29/9475 useless extension candidates. Maximal degree in co-relation 114889. Up to 5776 conditions per place. [2021-04-29 05:39:05,353 INFO L146 LiptonReduction]: Number of co-enabled transitions 14568 [2021-04-29 05:39:07,161 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:39:07,162 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:39:07,162 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7825 [2021-04-29 05:39:07,163 INFO L480 AbstractCegarLoop]: Abstraction has has 725 places, 2619 transitions, 34254 flow [2021-04-29 05:39:07,163 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 49.13333333333333) internal successors, (737), 15 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) [2021-04-29 05:39:07,163 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:39:07,163 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:39:07,163 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-04-29 05:39:07,163 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]=== [2021-04-29 05:39:07,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:39:07,164 INFO L82 PathProgramCache]: Analyzing trace with hash -280486584, now seen corresponding path program 8 times [2021-04-29 05:39:07,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:39:07,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764047780] [2021-04-29 05:39:07,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:39:07,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:39:07,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:39:07,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:39:07,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:39:07,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 05:39:07,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:39:07,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:39:07,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:39:07,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:39:07,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:39:07,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:39:07,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:39:07,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:39:07,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:39:07,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:39:07,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:39:07,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:39:07,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:39:07,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:39:07,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:39:07,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:39:07,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:39:07,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:39:07,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:39:07,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:39:07,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:39:07,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:39:07,489 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-04-29 05:39:07,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-29 05:39:07,531 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-04-29 05:39:07,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:39:07,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:39:07,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764047780] [2021-04-29 05:39:07,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:39:07,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-04-29 05:39:07,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795523951] [2021-04-29 05:39:07,537 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-04-29 05:39:07,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:39:07,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-04-29 05:39:07,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2021-04-29 05:39:07,539 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 92 [2021-04-29 05:39:07,540 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 725 places, 2619 transitions, 34254 flow. Second operand has 16 states, 16 states have (on average 49.0625) internal successors, (785), 16 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:39:07,540 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:39:07,540 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 92 [2021-04-29 05:39:07,540 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:39:23,808 INFO L129 PetriNetUnfolder]: 8142/13728 cut-off events. [2021-04-29 05:39:23,809 INFO L130 PetriNetUnfolder]: For 923253/925831 co-relation queries the response was YES. [2021-04-29 05:39:24,563 INFO L84 FinitePrefix]: Finished finitePrefix Result has 138509 conditions, 13728 events. 8142/13728 cut-off events. For 923253/925831 co-relation queries the response was YES. Maximal size of possible extension queue 784. Compared 102601 event pairs, 1184 based on Foata normal form. 25/10313 useless extension candidates. Maximal degree in co-relation 138097. Up to 10786 conditions per place. [2021-04-29 05:39:24,651 INFO L132 encePairwiseOnDemand]: 64/92 looper letters, 1954 selfloop transitions, 744 changer transitions 4/2724 dead transitions. [2021-04-29 05:39:24,651 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 758 places, 2724 transitions, 43085 flow [2021-04-29 05:39:24,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-04-29 05:39:24,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2021-04-29 05:39:24,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 1860 transitions. [2021-04-29 05:39:24,653 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5946291560102301 [2021-04-29 05:39:24,653 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 1860 transitions. [2021-04-29 05:39:24,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 1860 transitions. [2021-04-29 05:39:24,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:39:24,654 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 1860 transitions. [2021-04-29 05:39:24,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 54.705882352941174) internal successors, (1860), 34 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) [2021-04-29 05:39:24,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 92.0) internal successors, (3220), 35 states have internal predecessors, (3220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:39:24,661 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 92.0) internal successors, (3220), 35 states have internal predecessors, (3220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:39:24,661 INFO L185 Difference]: Start difference. First operand has 725 places, 2619 transitions, 34254 flow. Second operand 34 states and 1860 transitions. [2021-04-29 05:39:24,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 758 places, 2724 transitions, 43085 flow [2021-04-29 05:39:40,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 748 places, 2724 transitions, 40487 flow, removed 1069 selfloop flow, removed 10 redundant places. [2021-04-29 05:39:40,175 INFO L241 Difference]: Finished difference. Result has 753 places, 2694 transitions, 35990 flow [2021-04-29 05:39:40,177 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=32258, PETRI_DIFFERENCE_MINUEND_PLACES=715, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2619, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=683, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1928, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=35990, PETRI_PLACES=753, PETRI_TRANSITIONS=2694} [2021-04-29 05:39:40,177 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 687 predicate places. [2021-04-29 05:39:40,177 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:39:40,177 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 753 places, 2694 transitions, 35990 flow [2021-04-29 05:39:40,178 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 753 places, 2694 transitions, 35990 flow [2021-04-29 05:39:40,203 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 753 places, 2694 transitions, 35990 flow [2021-04-29 05:39:45,774 INFO L129 PetriNetUnfolder]: 7780/13259 cut-off events. [2021-04-29 05:39:45,774 INFO L130 PetriNetUnfolder]: For 827999/832540 co-relation queries the response was YES. [2021-04-29 05:39:46,293 INFO L84 FinitePrefix]: Finished finitePrefix Result has 118808 conditions, 13259 events. 7780/13259 cut-off events. For 827999/832540 co-relation queries the response was YES. Maximal size of possible extension queue 809. Compared 102040 event pairs, 756 based on Foata normal form. 56/9695 useless extension candidates. Maximal degree in co-relation 118409. Up to 5947 conditions per place. [2021-04-29 05:39:46,469 INFO L146 LiptonReduction]: Number of co-enabled transitions 15116 [2021-04-29 05:39:48,150 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:39:48,150 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:39:48,151 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7974 [2021-04-29 05:39:48,151 INFO L480 AbstractCegarLoop]: Abstraction has has 753 places, 2694 transitions, 35990 flow [2021-04-29 05:39:48,152 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 49.0625) internal successors, (785), 16 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:39:48,152 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:39:48,152 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:39:48,152 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-04-29 05:39:48,152 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]=== [2021-04-29 05:39:48,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:39:48,152 INFO L82 PathProgramCache]: Analyzing trace with hash 233964100, now seen corresponding path program 9 times [2021-04-29 05:39:48,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:39:48,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386989623] [2021-04-29 05:39:48,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:39:48,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:39:48,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:39:48,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:39:48,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:39:48,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 05:39:48,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:39:48,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:39:48,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:39:48,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:39:48,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:39:48,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:39:48,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:39:48,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:39:48,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:39:48,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:39:48,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:39:48,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 05:39:48,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:39:48,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 05:39:48,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:39:48,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:39:48,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:39:48,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:39:48,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:39:48,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:39:48,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:39:48,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:39:48,489 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-04-29 05:39:48,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-29 05:39:48,534 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-04-29 05:39:48,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:39:48,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:39:48,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386989623] [2021-04-29 05:39:48,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:39:48,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-04-29 05:39:48,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364107745] [2021-04-29 05:39:48,540 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-04-29 05:39:48,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:39:48,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-04-29 05:39:48,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2021-04-29 05:39:48,542 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 92 [2021-04-29 05:39:48,543 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 753 places, 2694 transitions, 35990 flow. Second operand has 16 states, 16 states have (on average 49.0625) internal successors, (785), 16 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:39:48,543 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:39:48,543 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 92 [2021-04-29 05:39:48,543 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:40:08,163 INFO L129 PetriNetUnfolder]: 9122/15354 cut-off events. [2021-04-29 05:40:08,164 INFO L130 PetriNetUnfolder]: For 1104980/1107813 co-relation queries the response was YES. [2021-04-29 05:40:08,774 INFO L84 FinitePrefix]: Finished finitePrefix Result has 161107 conditions, 15354 events. 9122/15354 cut-off events. For 1104980/1107813 co-relation queries the response was YES. Maximal size of possible extension queue 846. Compared 116011 event pairs, 1217 based on Foata normal form. 23/11488 useless extension candidates. Maximal degree in co-relation 160658. Up to 11282 conditions per place. [2021-04-29 05:40:08,871 INFO L132 encePairwiseOnDemand]: 63/92 looper letters, 1962 selfloop transitions, 1044 changer transitions 30/3058 dead transitions. [2021-04-29 05:40:08,871 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 801 places, 3058 transitions, 51689 flow [2021-04-29 05:40:08,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-04-29 05:40:08,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2021-04-29 05:40:08,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 2732 transitions. [2021-04-29 05:40:08,875 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6060337178349601 [2021-04-29 05:40:08,875 INFO L72 ComplementDD]: Start complementDD. Operand 49 states and 2732 transitions. [2021-04-29 05:40:08,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 2732 transitions. [2021-04-29 05:40:08,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:40:08,876 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 49 states and 2732 transitions. [2021-04-29 05:40:08,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 50 states, 49 states have (on average 55.755102040816325) internal successors, (2732), 49 states have internal predecessors, (2732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:40:08,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 50 states, 50 states have (on average 92.0) internal successors, (4600), 50 states have internal predecessors, (4600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:40:08,887 INFO L81 ComplementDD]: Finished complementDD. Result has 50 states, 50 states have (on average 92.0) internal successors, (4600), 50 states have internal predecessors, (4600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:40:08,887 INFO L185 Difference]: Start difference. First operand has 753 places, 2694 transitions, 35990 flow. Second operand 49 states and 2732 transitions. [2021-04-29 05:40:08,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 801 places, 3058 transitions, 51689 flow [2021-04-29 05:40:29,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 781 places, 3058 transitions, 48736 flow, removed 1051 selfloop flow, removed 20 redundant places. [2021-04-29 05:40:29,570 INFO L241 Difference]: Finished difference. Result has 804 places, 2945 transitions, 41838 flow [2021-04-29 05:40:29,572 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=33251, PETRI_DIFFERENCE_MINUEND_PLACES=733, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2694, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=813, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1821, PETRI_DIFFERENCE_SUBTRAHEND_STATES=49, PETRI_FLOW=41838, PETRI_PLACES=804, PETRI_TRANSITIONS=2945} [2021-04-29 05:40:29,573 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 738 predicate places. [2021-04-29 05:40:29,573 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:40:29,573 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 804 places, 2945 transitions, 41838 flow [2021-04-29 05:40:29,573 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 804 places, 2945 transitions, 41838 flow [2021-04-29 05:40:29,596 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 804 places, 2945 transitions, 41838 flow [2021-04-29 05:40:36,967 INFO L129 PetriNetUnfolder]: 8631/14738 cut-off events. [2021-04-29 05:40:36,967 INFO L130 PetriNetUnfolder]: For 1209524/1213970 co-relation queries the response was YES. [2021-04-29 05:40:37,661 INFO L84 FinitePrefix]: Finished finitePrefix Result has 144545 conditions, 14738 events. 8631/14738 cut-off events. For 1209524/1213970 co-relation queries the response was YES. Maximal size of possible extension queue 887. Compared 114986 event pairs, 763 based on Foata normal form. 22/10734 useless extension candidates. Maximal degree in co-relation 144068. Up to 6771 conditions per place. [2021-04-29 05:40:37,869 INFO L146 LiptonReduction]: Number of co-enabled transitions 16658 [2021-04-29 05:40:39,891 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:40:39,891 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:40:39,891 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10318 [2021-04-29 05:40:39,892 INFO L480 AbstractCegarLoop]: Abstraction has has 804 places, 2945 transitions, 41838 flow [2021-04-29 05:40:39,892 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 49.0625) internal successors, (785), 16 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:40:39,892 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:40:39,892 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, 1, 1, 1, 1, 1] [2021-04-29 05:40:39,892 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-04-29 05:40:39,893 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]=== [2021-04-29 05:40:39,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:40:39,893 INFO L82 PathProgramCache]: Analyzing trace with hash -615639564, now seen corresponding path program 10 times [2021-04-29 05:40:39,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:40:39,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680328131] [2021-04-29 05:40:39,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:40:39,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:40:39,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:40:39,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:40:39,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:40:39,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 05:40:39,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:40:39,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:40:39,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:40:39,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:40:39,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:40:39,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:40:39,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:40:39,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:40:40,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:40:40,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 05:40:40,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:40:40,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 05:40:40,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:40:40,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:40:40,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:40:40,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:40:40,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:40:40,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:40:40,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:40:40,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:40:40,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:40:40,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:40:40,150 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-04-29 05:40:40,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-29 05:40:40,187 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-04-29 05:40:40,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:40:40,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:40:40,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680328131] [2021-04-29 05:40:40,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:40:40,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-04-29 05:40:40,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692363122] [2021-04-29 05:40:40,192 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-29 05:40:40,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:40:40,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-29 05:40:40,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2021-04-29 05:40:40,195 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 92 [2021-04-29 05:40:40,196 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 804 places, 2945 transitions, 41838 flow. Second operand has 14 states, 14 states have (on average 49.214285714285715) internal successors, (689), 14 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) [2021-04-29 05:40:40,196 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:40:40,196 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 92 [2021-04-29 05:40:40,196 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:40:59,203 INFO L129 PetriNetUnfolder]: 9275/15637 cut-off events. [2021-04-29 05:40:59,203 INFO L130 PetriNetUnfolder]: For 1358153/1361034 co-relation queries the response was YES. [2021-04-29 05:41:00,075 INFO L84 FinitePrefix]: Finished finitePrefix Result has 170157 conditions, 15637 events. 9275/15637 cut-off events. For 1358153/1361034 co-relation queries the response was YES. Maximal size of possible extension queue 853. Compared 118953 event pairs, 1217 based on Foata normal form. 7/11676 useless extension candidates. Maximal degree in co-relation 169658. Up to 12338 conditions per place. [2021-04-29 05:41:00,182 INFO L132 encePairwiseOnDemand]: 64/92 looper letters, 2409 selfloop transitions, 727 changer transitions 10/3168 dead transitions. [2021-04-29 05:41:00,182 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 840 places, 3168 transitions, 53375 flow [2021-04-29 05:41:00,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-04-29 05:41:00,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2021-04-29 05:41:00,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 2028 transitions. [2021-04-29 05:41:00,184 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5957696827262045 [2021-04-29 05:41:00,184 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 2028 transitions. [2021-04-29 05:41:00,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 2028 transitions. [2021-04-29 05:41:00,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:41:00,185 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 2028 transitions. [2021-04-29 05:41:00,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 54.810810810810814) internal successors, (2028), 37 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) [2021-04-29 05:41:00,193 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 92.0) internal successors, (3496), 38 states have internal predecessors, (3496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:41:00,193 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 92.0) internal successors, (3496), 38 states have internal predecessors, (3496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:41:00,193 INFO L185 Difference]: Start difference. First operand has 804 places, 2945 transitions, 41838 flow. Second operand 37 states and 2028 transitions. [2021-04-29 05:41:00,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 840 places, 3168 transitions, 53375 flow [2021-04-29 05:41:23,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 838 places, 3168 transitions, 50246 flow, removed 1528 selfloop flow, removed 2 redundant places. [2021-04-29 05:41:24,037 INFO L241 Difference]: Finished difference. Result has 849 places, 3114 transitions, 44548 flow [2021-04-29 05:41:24,040 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=38709, PETRI_DIFFERENCE_MINUEND_PLACES=802, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2945, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=568, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=44548, PETRI_PLACES=849, PETRI_TRANSITIONS=3114} [2021-04-29 05:41:24,040 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 783 predicate places. [2021-04-29 05:41:24,040 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:41:24,040 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 849 places, 3114 transitions, 44548 flow [2021-04-29 05:41:24,041 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 849 places, 3114 transitions, 44548 flow [2021-04-29 05:41:24,074 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 847 places, 3114 transitions, 44548 flow [2021-04-29 05:41:31,394 INFO L129 PetriNetUnfolder]: 8800/15056 cut-off events. [2021-04-29 05:41:31,395 INFO L130 PetriNetUnfolder]: For 1236845/1240259 co-relation queries the response was YES. [2021-04-29 05:41:32,211 INFO L84 FinitePrefix]: Finished finitePrefix Result has 143195 conditions, 15056 events. 8800/15056 cut-off events. For 1236845/1240259 co-relation queries the response was YES. Maximal size of possible extension queue 950. Compared 117822 event pairs, 842 based on Foata normal form. 12/10929 useless extension candidates. Maximal degree in co-relation 142745. Up to 6416 conditions per place. [2021-04-29 05:41:32,770 INFO L146 LiptonReduction]: Number of co-enabled transitions 17194 [2021-04-29 05:41:34,873 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:41:34,873 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:41:34,873 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10833 [2021-04-29 05:41:34,874 INFO L480 AbstractCegarLoop]: Abstraction has has 847 places, 3114 transitions, 44548 flow [2021-04-29 05:41:34,874 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 49.214285714285715) internal successors, (689), 14 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) [2021-04-29 05:41:34,874 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:41:34,875 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:41:34,875 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-04-29 05:41:34,875 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]=== [2021-04-29 05:41:34,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:41:34,875 INFO L82 PathProgramCache]: Analyzing trace with hash 1147186578, now seen corresponding path program 11 times [2021-04-29 05:41:34,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:41:34,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496977583] [2021-04-29 05:41:34,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:41:34,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:41:34,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:41:34,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:41:34,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:41:34,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 05:41:34,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:41:34,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:41:34,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:41:34,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:41:34,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:41:34,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:41:34,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:41:34,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:41:34,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:41:34,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:41:35,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:41:35,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:41:35,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:41:35,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:41:35,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:41:35,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:41:35,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:41:35,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:41:35,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:41:35,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:41:35,179 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-04-29 05:41:35,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-29 05:41:35,219 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-04-29 05:41:35,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-29 05:41:35,258 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-04-29 05:41:35,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:41:35,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:41:35,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496977583] [2021-04-29 05:41:35,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:41:35,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-04-29 05:41:35,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360841153] [2021-04-29 05:41:35,265 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-04-29 05:41:35,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:41:35,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-04-29 05:41:35,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2021-04-29 05:41:35,268 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 92 [2021-04-29 05:41:35,269 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 847 places, 3114 transitions, 44548 flow. Second operand has 16 states, 16 states have (on average 49.0625) internal successors, (785), 16 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:41:35,269 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:41:35,269 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 92 [2021-04-29 05:41:35,269 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:41:40,282 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-04-29 05:41:56,170 INFO L129 PetriNetUnfolder]: 9338/15829 cut-off events. [2021-04-29 05:41:56,170 INFO L130 PetriNetUnfolder]: For 1415446/1418380 co-relation queries the response was YES. [2021-04-29 05:41:56,979 INFO L84 FinitePrefix]: Finished finitePrefix Result has 168475 conditions, 15829 events. 9338/15829 cut-off events. For 1415446/1418380 co-relation queries the response was YES. Maximal size of possible extension queue 887. Compared 121382 event pairs, 1081 based on Foata normal form. 22/11750 useless extension candidates. Maximal degree in co-relation 168182. Up to 12429 conditions per place. [2021-04-29 05:41:57,093 INFO L132 encePairwiseOnDemand]: 64/92 looper letters, 2574 selfloop transitions, 612 changer transitions 2/3210 dead transitions. [2021-04-29 05:41:57,093 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 878 places, 3210 transitions, 54068 flow [2021-04-29 05:41:57,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-04-29 05:41:57,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2021-04-29 05:41:57,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 1758 transitions. [2021-04-29 05:41:57,095 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5971467391304348 [2021-04-29 05:41:57,095 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 1758 transitions. [2021-04-29 05:41:57,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 1758 transitions. [2021-04-29 05:41:57,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:41:57,096 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 1758 transitions. [2021-04-29 05:41:57,098 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 54.9375) internal successors, (1758), 32 states have internal predecessors, (1758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:41:57,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 92.0) internal successors, (3036), 33 states have internal predecessors, (3036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:41:57,101 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 92.0) internal successors, (3036), 33 states have internal predecessors, (3036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:41:57,101 INFO L185 Difference]: Start difference. First operand has 847 places, 3114 transitions, 44548 flow. Second operand 32 states and 1758 transitions. [2021-04-29 05:41:57,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 878 places, 3210 transitions, 54068 flow [2021-04-29 05:42:23,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 860 places, 3210 transitions, 51492 flow, removed 920 selfloop flow, removed 18 redundant places. [2021-04-29 05:42:23,377 INFO L241 Difference]: Finished difference. Result has 869 places, 3149 transitions, 44688 flow [2021-04-29 05:42:23,380 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=42026, PETRI_DIFFERENCE_MINUEND_PLACES=829, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=3114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=580, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2519, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=44688, PETRI_PLACES=869, PETRI_TRANSITIONS=3149} [2021-04-29 05:42:23,380 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 803 predicate places. [2021-04-29 05:42:23,381 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:42:23,381 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 869 places, 3149 transitions, 44688 flow [2021-04-29 05:42:23,381 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 869 places, 3149 transitions, 44688 flow [2021-04-29 05:42:23,417 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 869 places, 3149 transitions, 44688 flow [2021-04-29 05:42:31,106 INFO L129 PetriNetUnfolder]: 8913/15331 cut-off events. [2021-04-29 05:42:31,106 INFO L130 PetriNetUnfolder]: For 1245450/1248999 co-relation queries the response was YES. [2021-04-29 05:42:31,861 INFO L84 FinitePrefix]: Finished finitePrefix Result has 145720 conditions, 15331 events. 8913/15331 cut-off events. For 1245450/1248999 co-relation queries the response was YES. Maximal size of possible extension queue 989. Compared 121722 event pairs, 812 based on Foata normal form. 18/11121 useless extension candidates. Maximal degree in co-relation 145193. Up to 6521 conditions per place. [2021-04-29 05:42:32,076 INFO L146 LiptonReduction]: Number of co-enabled transitions 17492 [2021-04-29 05:42:34,079 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:42:34,079 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:42:34,079 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10698 [2021-04-29 05:42:34,080 INFO L480 AbstractCegarLoop]: Abstraction has has 869 places, 3149 transitions, 44688 flow [2021-04-29 05:42:34,081 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 49.0625) internal successors, (785), 16 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:42:34,081 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:42:34,081 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:42:34,081 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-04-29 05:42:34,081 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]=== [2021-04-29 05:42:34,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:42:34,081 INFO L82 PathProgramCache]: Analyzing trace with hash -683445064, now seen corresponding path program 12 times [2021-04-29 05:42:34,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:42:34,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585709313] [2021-04-29 05:42:34,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:42:34,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:42:34,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:42:34,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:42:34,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:42:34,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 05:42:34,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:42:34,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:42:34,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:42:34,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:42:34,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:42:34,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:42:34,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:42:34,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:42:34,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:42:34,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 05:42:34,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:42:34,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 05:42:34,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:42:34,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 05:42:34,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:42:34,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:42:34,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:42:34,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:42:34,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:42:34,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:42:34,318 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-04-29 05:42:34,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-29 05:42:34,348 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-04-29 05:42:34,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-29 05:42:34,380 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-04-29 05:42:34,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:42:34,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:42:34,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585709313] [2021-04-29 05:42:34,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:42:34,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-04-29 05:42:34,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939668770] [2021-04-29 05:42:34,386 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-29 05:42:34,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:42:34,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-29 05:42:34,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2021-04-29 05:42:34,387 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 92 [2021-04-29 05:42:34,388 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 869 places, 3149 transitions, 44688 flow. Second operand has 14 states, 14 states have (on average 49.214285714285715) internal successors, (689), 14 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) [2021-04-29 05:42:34,388 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:42:34,388 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 92 [2021-04-29 05:42:34,388 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:42:55,235 INFO L129 PetriNetUnfolder]: 9335/15825 cut-off events. [2021-04-29 05:42:55,235 INFO L130 PetriNetUnfolder]: For 1400204/1403161 co-relation queries the response was YES. [2021-04-29 05:42:56,367 INFO L84 FinitePrefix]: Finished finitePrefix Result has 168082 conditions, 15825 events. 9335/15825 cut-off events. For 1400204/1403161 co-relation queries the response was YES. Maximal size of possible extension queue 875. Compared 121591 event pairs, 1186 based on Foata normal form. 26/11760 useless extension candidates. Maximal degree in co-relation 167738. Up to 12388 conditions per place. [2021-04-29 05:42:56,496 INFO L132 encePairwiseOnDemand]: 63/92 looper letters, 2379 selfloop transitions, 815 changer transitions 3/3219 dead transitions. [2021-04-29 05:42:56,496 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 902 places, 3219 transitions, 53633 flow [2021-04-29 05:42:56,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-04-29 05:42:56,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2021-04-29 05:42:56,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 1872 transitions. [2021-04-29 05:42:56,499 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.59846547314578 [2021-04-29 05:42:56,499 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 1872 transitions. [2021-04-29 05:42:56,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 1872 transitions. [2021-04-29 05:42:56,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:42:56,500 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 1872 transitions. [2021-04-29 05:42:56,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 55.05882352941177) internal successors, (1872), 34 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) [2021-04-29 05:42:56,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 92.0) internal successors, (3220), 35 states have internal predecessors, (3220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:42:56,506 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 92.0) internal successors, (3220), 35 states have internal predecessors, (3220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:42:56,506 INFO L185 Difference]: Start difference. First operand has 869 places, 3149 transitions, 44688 flow. Second operand 34 states and 1872 transitions. [2021-04-29 05:42:56,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 902 places, 3219 transitions, 53633 flow [2021-04-29 05:43:20,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 889 places, 3219 transitions, 52164 flow, removed 440 selfloop flow, removed 13 redundant places. [2021-04-29 05:43:20,491 INFO L241 Difference]: Finished difference. Result has 893 places, 3171 transitions, 45781 flow [2021-04-29 05:43:20,493 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=43219, PETRI_DIFFERENCE_MINUEND_PLACES=856, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=3149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=795, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2348, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=45781, PETRI_PLACES=893, PETRI_TRANSITIONS=3171} [2021-04-29 05:43:20,493 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 827 predicate places. [2021-04-29 05:43:20,493 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:43:20,493 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 893 places, 3171 transitions, 45781 flow [2021-04-29 05:43:20,494 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 893 places, 3171 transitions, 45781 flow [2021-04-29 05:43:20,517 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 893 places, 3171 transitions, 45781 flow [2021-04-29 05:43:28,170 INFO L129 PetriNetUnfolder]: 8800/15111 cut-off events. [2021-04-29 05:43:28,170 INFO L130 PetriNetUnfolder]: For 1285166/1288640 co-relation queries the response was YES. [2021-04-29 05:43:28,991 INFO L84 FinitePrefix]: Finished finitePrefix Result has 145880 conditions, 15111 events. 8800/15111 cut-off events. For 1285166/1288640 co-relation queries the response was YES. Maximal size of possible extension queue 930. Compared 118907 event pairs, 937 based on Foata normal form. 37/11036 useless extension candidates. Maximal degree in co-relation 145421. Up to 6437 conditions per place. [2021-04-29 05:43:29,216 INFO L146 LiptonReduction]: Number of co-enabled transitions 17652 [2021-04-29 05:43:32,540 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:43:32,541 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:43:32,541 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12048 [2021-04-29 05:43:32,542 INFO L480 AbstractCegarLoop]: Abstraction has has 893 places, 3171 transitions, 45781 flow [2021-04-29 05:43:32,542 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 49.214285714285715) internal successors, (689), 14 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) [2021-04-29 05:43:32,543 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:43:32,546 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, 1, 1, 1, 1] [2021-04-29 05:43:32,546 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-04-29 05:43:32,546 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]=== [2021-04-29 05:43:32,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:43:32,553 INFO L82 PathProgramCache]: Analyzing trace with hash -1166758144, now seen corresponding path program 13 times [2021-04-29 05:43:32,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:43:32,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814693796] [2021-04-29 05:43:32,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:43:32,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:43:32,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:43:32,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:43:32,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:43:32,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 05:43:32,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:43:32,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:43:32,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:43:32,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:43:32,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:43:32,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:43:32,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:43:32,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:43:32,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:43:32,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 05:43:32,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:43:32,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 05:43:32,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:43:32,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 05:43:32,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:43:32,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 05:43:32,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:43:32,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:43:32,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:43:32,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:43:32,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:43:32,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:43:32,936 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-04-29 05:43:32,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-29 05:43:32,975 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-04-29 05:43:32,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:43:32,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:43:32,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814693796] [2021-04-29 05:43:32,979 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:43:32,979 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-04-29 05:43:32,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645679494] [2021-04-29 05:43:32,980 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-04-29 05:43:32,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:43:32,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-04-29 05:43:32,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2021-04-29 05:43:32,982 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 92 [2021-04-29 05:43:32,983 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 893 places, 3171 transitions, 45781 flow. Second operand has 15 states, 15 states have (on average 49.13333333333333) internal successors, (737), 15 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) [2021-04-29 05:43:32,983 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:43:32,983 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 92 [2021-04-29 05:43:32,983 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:43:56,898 INFO L129 PetriNetUnfolder]: 9841/16642 cut-off events. [2021-04-29 05:43:56,898 INFO L130 PetriNetUnfolder]: For 1528922/1532031 co-relation queries the response was YES. [2021-04-29 05:43:57,783 INFO L84 FinitePrefix]: Finished finitePrefix Result has 179823 conditions, 16642 events. 9841/16642 cut-off events. For 1528922/1532031 co-relation queries the response was YES. Maximal size of possible extension queue 945. Compared 128410 event pairs, 1252 based on Foata normal form. 43/12390 useless extension candidates. Maximal degree in co-relation 179519. Up to 13158 conditions per place. [2021-04-29 05:43:57,902 INFO L132 encePairwiseOnDemand]: 63/92 looper letters, 2726 selfloop transitions, 764 changer transitions 0/3512 dead transitions. [2021-04-29 05:43:57,902 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 931 places, 3512 transitions, 60977 flow [2021-04-29 05:43:57,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-04-29 05:43:57,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2021-04-29 05:43:57,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 2119 transitions. [2021-04-29 05:43:57,906 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5905797101449275 [2021-04-29 05:43:57,906 INFO L72 ComplementDD]: Start complementDD. Operand 39 states and 2119 transitions. [2021-04-29 05:43:57,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 2119 transitions. [2021-04-29 05:43:57,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:43:57,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 39 states and 2119 transitions. [2021-04-29 05:43:57,910 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 40 states, 39 states have (on average 54.333333333333336) internal successors, (2119), 39 states have internal predecessors, (2119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:43:57,913 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 40 states, 40 states have (on average 92.0) internal successors, (3680), 40 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) [2021-04-29 05:43:57,913 INFO L81 ComplementDD]: Finished complementDD. Result has 40 states, 40 states have (on average 92.0) internal successors, (3680), 40 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) [2021-04-29 05:43:57,913 INFO L185 Difference]: Start difference. First operand has 893 places, 3171 transitions, 45781 flow. Second operand 39 states and 2119 transitions. [2021-04-29 05:43:57,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 931 places, 3512 transitions, 60977 flow [2021-04-29 05:44:25,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 906 places, 3512 transitions, 59422 flow, removed 280 selfloop flow, removed 25 redundant places. [2021-04-29 05:44:25,679 INFO L241 Difference]: Finished difference. Result has 921 places, 3451 transitions, 53218 flow [2021-04-29 05:44:25,681 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=44360, PETRI_DIFFERENCE_MINUEND_PLACES=868, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=3171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=507, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2538, PETRI_DIFFERENCE_SUBTRAHEND_STATES=39, PETRI_FLOW=53218, PETRI_PLACES=921, PETRI_TRANSITIONS=3451} [2021-04-29 05:44:25,681 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 855 predicate places. [2021-04-29 05:44:25,681 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:44:25,682 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 921 places, 3451 transitions, 53218 flow [2021-04-29 05:44:25,682 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 921 places, 3451 transitions, 53218 flow [2021-04-29 05:44:25,718 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 921 places, 3451 transitions, 53218 flow [2021-04-29 05:44:34,650 INFO L129 PetriNetUnfolder]: 9395/16075 cut-off events. [2021-04-29 05:44:34,651 INFO L130 PetriNetUnfolder]: For 1392924/1396826 co-relation queries the response was YES. [2021-04-29 05:44:35,633 INFO L84 FinitePrefix]: Finished finitePrefix Result has 159529 conditions, 16075 events. 9395/16075 cut-off events. For 1392924/1396826 co-relation queries the response was YES. Maximal size of possible extension queue 1044. Compared 127189 event pairs, 934 based on Foata normal form. 34/11695 useless extension candidates. Maximal degree in co-relation 159044. Up to 6777 conditions per place. [2021-04-29 05:44:36,283 INFO L146 LiptonReduction]: Number of co-enabled transitions 18734 [2021-04-29 05:44:38,825 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:44:38,825 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:44:38,825 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13144 [2021-04-29 05:44:38,829 INFO L480 AbstractCegarLoop]: Abstraction has has 921 places, 3451 transitions, 53218 flow [2021-04-29 05:44:38,829 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 49.13333333333333) internal successors, (737), 15 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) [2021-04-29 05:44:38,829 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:44:38,829 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, 1, 1, 1, 1] [2021-04-29 05:44:38,829 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-04-29 05:44:38,830 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]=== [2021-04-29 05:44:38,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:44:38,830 INFO L82 PathProgramCache]: Analyzing trace with hash 1526078378, now seen corresponding path program 14 times [2021-04-29 05:44:38,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:44:38,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298574238] [2021-04-29 05:44:38,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:44:38,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:44:38,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:44:38,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:44:38,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:44:38,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 05:44:38,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:44:38,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:44:38,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:44:38,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:44:38,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:44:38,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:44:38,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:44:38,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:44:38,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:44:38,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:44:38,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:44:38,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 05:44:39,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:44:39,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 05:44:39,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:44:39,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 05:44:39,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:44:39,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:44:39,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:44:39,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:44:39,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:44:39,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:44:39,187 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-04-29 05:44:39,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-29 05:44:39,223 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-04-29 05:44:39,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:44:39,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:44:39,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298574238] [2021-04-29 05:44:39,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:44:39,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-04-29 05:44:39,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32315057] [2021-04-29 05:44:39,229 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-04-29 05:44:39,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:44:39,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-04-29 05:44:39,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2021-04-29 05:44:39,230 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 92 [2021-04-29 05:44:39,231 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 921 places, 3451 transitions, 53218 flow. Second operand has 16 states, 16 states have (on average 49.0625) internal successors, (785), 16 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:44:39,231 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:44:39,231 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 92 [2021-04-29 05:44:39,231 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:45:07,178 INFO L129 PetriNetUnfolder]: 10163/17265 cut-off events. [2021-04-29 05:45:07,179 INFO L130 PetriNetUnfolder]: For 1624232/1627359 co-relation queries the response was YES. [2021-04-29 05:45:08,515 INFO L84 FinitePrefix]: Finished finitePrefix Result has 191311 conditions, 17265 events. 10163/17265 cut-off events. For 1624232/1627359 co-relation queries the response was YES. Maximal size of possible extension queue 995. Compared 134722 event pairs, 1250 based on Foata normal form. 24/12816 useless extension candidates. Maximal degree in co-relation 190991. Up to 13193 conditions per place. [2021-04-29 05:45:08,628 INFO L132 encePairwiseOnDemand]: 63/92 looper letters, 2730 selfloop transitions, 903 changer transitions 4/3659 dead transitions. [2021-04-29 05:45:08,628 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 966 places, 3659 transitions, 66489 flow [2021-04-29 05:45:08,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-04-29 05:45:08,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2021-04-29 05:45:08,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 2489 transitions. [2021-04-29 05:45:08,632 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5881379962192816 [2021-04-29 05:45:08,632 INFO L72 ComplementDD]: Start complementDD. Operand 46 states and 2489 transitions. [2021-04-29 05:45:08,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 2489 transitions. [2021-04-29 05:45:08,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:45:08,633 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 46 states and 2489 transitions. [2021-04-29 05:45:08,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 47 states, 46 states have (on average 54.108695652173914) internal successors, (2489), 46 states have internal predecessors, (2489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:45:08,638 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 47 states, 47 states have (on average 92.0) internal successors, (4324), 47 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:45:08,638 INFO L81 ComplementDD]: Finished complementDD. Result has 47 states, 47 states have (on average 92.0) internal successors, (4324), 47 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:45:08,639 INFO L185 Difference]: Start difference. First operand has 921 places, 3451 transitions, 53218 flow. Second operand 46 states and 2489 transitions. [2021-04-29 05:45:08,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 966 places, 3659 transitions, 66489 flow [2021-04-29 05:45:43,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 960 places, 3659 transitions, 63834 flow, removed 1244 selfloop flow, removed 6 redundant places. [2021-04-29 05:45:43,126 INFO L241 Difference]: Finished difference. Result has 972 places, 3592 transitions, 56607 flow [2021-04-29 05:45:43,128 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=51025, PETRI_DIFFERENCE_MINUEND_PLACES=915, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=3451, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=784, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2631, PETRI_DIFFERENCE_SUBTRAHEND_STATES=46, PETRI_FLOW=56607, PETRI_PLACES=972, PETRI_TRANSITIONS=3592} [2021-04-29 05:45:43,129 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 906 predicate places. [2021-04-29 05:45:43,129 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:45:43,129 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 972 places, 3592 transitions, 56607 flow [2021-04-29 05:45:43,129 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 972 places, 3592 transitions, 56607 flow [2021-04-29 05:45:43,159 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 972 places, 3592 transitions, 56607 flow [2021-04-29 05:45:52,882 INFO L129 PetriNetUnfolder]: 9734/16809 cut-off events. [2021-04-29 05:45:52,882 INFO L130 PetriNetUnfolder]: For 1449389/1452619 co-relation queries the response was YES. [2021-04-29 05:45:53,967 INFO L84 FinitePrefix]: Finished finitePrefix Result has 167574 conditions, 16809 events. 9734/16809 cut-off events. For 1449389/1452619 co-relation queries the response was YES. Maximal size of possible extension queue 1107. Compared 135449 event pairs, 1018 based on Foata normal form. 14/12216 useless extension candidates. Maximal degree in co-relation 167061. Up to 6808 conditions per place. [2021-04-29 05:45:54,229 INFO L146 LiptonReduction]: Number of co-enabled transitions 19214 [2021-04-29 05:45:57,107 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:45:57,107 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:45:57,107 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13978 [2021-04-29 05:45:57,108 INFO L480 AbstractCegarLoop]: Abstraction has has 972 places, 3592 transitions, 56607 flow [2021-04-29 05:45:57,108 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 49.0625) internal successors, (785), 16 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:45:57,109 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:45:57,109 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:45:57,109 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-04-29 05:45:57,109 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]=== [2021-04-29 05:45:57,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:45:57,109 INFO L82 PathProgramCache]: Analyzing trace with hash -2019366774, now seen corresponding path program 15 times [2021-04-29 05:45:57,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:45:57,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730618456] [2021-04-29 05:45:57,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:45:57,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:45:57,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:45:57,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:45:57,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:45:57,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 05:45:57,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:45:57,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:45:57,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:45:57,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:45:57,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:45:57,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:45:57,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:45:57,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:45:57,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:45:57,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:45:57,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:45:57,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 05:45:57,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:45:57,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:45:57,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:45:57,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:45:57,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:45:57,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:45:57,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:45:57,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:45:57,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:45:57,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:45:57,426 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-04-29 05:45:57,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-29 05:45:57,467 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-04-29 05:45:57,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:45:57,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:45:57,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730618456] [2021-04-29 05:45:57,472 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:45:57,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-04-29 05:45:57,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577066895] [2021-04-29 05:45:57,472 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-04-29 05:45:57,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:45:57,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-04-29 05:45:57,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2021-04-29 05:45:57,474 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 92 [2021-04-29 05:45:57,475 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 972 places, 3592 transitions, 56607 flow. Second operand has 16 states, 16 states have (on average 49.0625) internal successors, (785), 16 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:45:57,475 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:45:57,475 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 92 [2021-04-29 05:45:57,475 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:46:25,544 INFO L129 PetriNetUnfolder]: 10431/17746 cut-off events. [2021-04-29 05:46:25,545 INFO L130 PetriNetUnfolder]: For 1711691/1714893 co-relation queries the response was YES. [2021-04-29 05:46:26,701 INFO L84 FinitePrefix]: Finished finitePrefix Result has 200053 conditions, 17746 events. 10431/17746 cut-off events. For 1711691/1714893 co-relation queries the response was YES. Maximal size of possible extension queue 1092. Compared 139281 event pairs, 1181 based on Foata normal form. 22/13171 useless extension candidates. Maximal degree in co-relation 199720. Up to 13722 conditions per place. [2021-04-29 05:46:26,834 INFO L132 encePairwiseOnDemand]: 63/92 looper letters, 2849 selfloop transitions, 908 changer transitions 2/3781 dead transitions. [2021-04-29 05:46:26,834 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1008 places, 3781 transitions, 70426 flow [2021-04-29 05:46:26,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-04-29 05:46:26,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2021-04-29 05:46:26,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 2017 transitions. [2021-04-29 05:46:26,838 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5925381903642774 [2021-04-29 05:46:26,838 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 2017 transitions. [2021-04-29 05:46:26,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 2017 transitions. [2021-04-29 05:46:26,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:46:26,839 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 2017 transitions. [2021-04-29 05:46:26,842 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 54.513513513513516) internal successors, (2017), 37 states have internal predecessors, (2017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:46:26,844 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 92.0) internal successors, (3496), 38 states have internal predecessors, (3496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:46:26,845 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 92.0) internal successors, (3496), 38 states have internal predecessors, (3496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:46:26,845 INFO L185 Difference]: Start difference. First operand has 972 places, 3592 transitions, 56607 flow. Second operand 37 states and 2017 transitions. [2021-04-29 05:46:26,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1008 places, 3781 transitions, 70426 flow [2021-04-29 05:47:05,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 992 places, 3781 transitions, 67035 flow, removed 1336 selfloop flow, removed 16 redundant places. [2021-04-29 05:47:05,467 INFO L241 Difference]: Finished difference. Result has 1000 places, 3745 transitions, 60233 flow [2021-04-29 05:47:05,470 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=54362, PETRI_DIFFERENCE_MINUEND_PLACES=956, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=3592, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=771, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2771, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=60233, PETRI_PLACES=1000, PETRI_TRANSITIONS=3745} [2021-04-29 05:47:05,471 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 934 predicate places. [2021-04-29 05:47:05,471 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:47:05,471 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1000 places, 3745 transitions, 60233 flow [2021-04-29 05:47:05,471 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 1000 places, 3745 transitions, 60233 flow [2021-04-29 05:47:05,504 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 1000 places, 3745 transitions, 60233 flow [2021-04-29 05:47:15,611 INFO L129 PetriNetUnfolder]: 10037/17322 cut-off events. [2021-04-29 05:47:15,611 INFO L130 PetriNetUnfolder]: For 1541178/1544714 co-relation queries the response was YES. [2021-04-29 05:47:17,243 INFO L84 FinitePrefix]: Finished finitePrefix Result has 175458 conditions, 17322 events. 10037/17322 cut-off events. For 1541178/1544714 co-relation queries the response was YES. Maximal size of possible extension queue 1143. Compared 140490 event pairs, 841 based on Foata normal form. 20/12598 useless extension candidates. Maximal degree in co-relation 174917. Up to 6733 conditions per place. [2021-04-29 05:47:17,515 INFO L146 LiptonReduction]: Number of co-enabled transitions 20272 [2021-04-29 05:47:20,650 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:47:20,650 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:47:20,650 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15179 [2021-04-29 05:47:20,651 INFO L480 AbstractCegarLoop]: Abstraction has has 1000 places, 3745 transitions, 60233 flow [2021-04-29 05:47:20,651 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 49.0625) internal successors, (785), 16 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:47:20,651 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:47:20,651 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, 1, 1, 1, 1] [2021-04-29 05:47:20,652 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-04-29 05:47:20,652 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]=== [2021-04-29 05:47:20,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:47:20,652 INFO L82 PathProgramCache]: Analyzing trace with hash 783067460, now seen corresponding path program 16 times [2021-04-29 05:47:20,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:47:20,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366983010] [2021-04-29 05:47:20,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:47:20,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:47:20,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:47:20,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:47:20,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:47:20,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-29 05:47:20,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:47:20,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:47:20,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:47:20,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:47:20,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:47:20,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:47:20,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:47:20,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:47:20,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:47:20,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 05:47:20,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:47:20,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 05:47:20,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:47:20,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:47:20,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:47:20,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:47:20,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:47:20,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:47:20,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:47:20,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 05:47:20,892 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-04-29 05:47:20,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-29 05:47:20,900 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-04-29 05:47:20,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-29 05:47:20,952 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-04-29 05:47:20,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 05:47:20,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:47:20,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366983010] [2021-04-29 05:47:20,959 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:47:20,959 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-04-29 05:47:20,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897694231] [2021-04-29 05:47:20,960 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-04-29 05:47:20,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:47:20,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-04-29 05:47:20,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2021-04-29 05:47:20,961 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 92 [2021-04-29 05:47:20,962 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1000 places, 3745 transitions, 60233 flow. Second operand has 13 states, 13 states have (on average 49.30769230769231) internal successors, (641), 13 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) [2021-04-29 05:47:20,962 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:47:20,962 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 92 [2021-04-29 05:47:20,962 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2021-04-29 05:47:46,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-04-29 05:47:46,985 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-04-29 05:47:46,985 WARN L545 AbstractCegarLoop]: Verification canceled [2021-04-29 05:47:46,989 WARN L224 ceAbstractionStarter]: Timeout [2021-04-29 05:47:46,989 INFO L202 PluginConnector]: Adding new model barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 05:47:46 BasicIcfg [2021-04-29 05:47:46,989 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 05:47:46,990 INFO L168 Benchmark]: Toolchain (without parser) took 779500.94 ms. Allocated memory was 306.2 MB in the beginning and 14.5 GB in the end (delta: 14.2 GB). Free memory was 275.3 MB in the beginning and 7.6 GB in the end (delta: -7.3 GB). Peak memory consumption was 6.9 GB. Max. memory is 16.0 GB. [2021-04-29 05:47:46,990 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.74 ms. Allocated memory is still 306.2 MB. Free memory was 276.5 MB in the beginning and 276.4 MB in the end (delta: 65.6 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 05:47:46,990 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.16 ms. Allocated memory is still 306.2 MB. Free memory was 289.4 MB in the beginning and 287.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 05:47:46,990 INFO L168 Benchmark]: Boogie Preprocessor took 20.82 ms. Allocated memory is still 306.2 MB. Free memory was 287.8 MB in the beginning and 286.9 MB in the end (delta: 916.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 05:47:46,991 INFO L168 Benchmark]: RCFGBuilder took 337.29 ms. Allocated memory is still 306.2 MB. Free memory was 286.8 MB in the beginning and 280.3 MB in the end (delta: 6.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. [2021-04-29 05:47:46,991 INFO L168 Benchmark]: TraceAbstraction took 779046.07 ms. Allocated memory was 306.2 MB in the beginning and 14.5 GB in the end (delta: 14.2 GB). Free memory was 279.8 MB in the beginning and 7.6 GB in the end (delta: -7.3 GB). Peak memory consumption was 6.9 GB. Max. memory is 16.0 GB. [2021-04-29 05:47:46,992 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 0.74 ms. Allocated memory is still 306.2 MB. Free memory was 276.5 MB in the beginning and 276.4 MB in the end (delta: 65.6 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 34.16 ms. Allocated memory is still 306.2 MB. Free memory was 289.4 MB in the beginning and 287.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 20.82 ms. Allocated memory is still 306.2 MB. Free memory was 287.8 MB in the beginning and 286.9 MB in the end (delta: 916.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 337.29 ms. Allocated memory is still 306.2 MB. Free memory was 286.8 MB in the beginning and 280.3 MB in the end (delta: 6.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 779046.07 ms. Allocated memory was 306.2 MB in the beginning and 14.5 GB in the end (delta: 14.2 GB). Free memory was 279.8 MB in the beginning and 7.6 GB in the end (delta: -7.3 GB). Peak memory consumption was 6.9 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 598.5ms, 66 PlacesBefore, 66 PlacesAfterwards, 51 TransitionsBefore, 51 TransitionsAfterwards, 1336 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 12 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 13 TotalNumberOfCompositions, 2330 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1043, positive: 981, positive conditional: 981, positive unconditional: 0, negative: 62, negative conditional: 62, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 793, positive: 755, positive conditional: 0, positive unconditional: 755, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 793, positive: 755, positive conditional: 0, positive unconditional: 755, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 793, positive: 749, positive conditional: 0, positive unconditional: 749, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 44, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 207, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 187, negative conditional: 0, negative unconditional: 187, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1043, positive: 226, positive conditional: 226, positive unconditional: 0, negative: 24, negative conditional: 24, negative unconditional: 0, unknown: 793, unknown conditional: 793, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 793, Positive cache size: 755, Positive conditional cache size: 755, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 90.3ms, 56 PlacesBefore, 55 PlacesAfterwards, 50 TransitionsBefore, 50 TransitionsAfterwards, 1292 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 2192 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 988, positive: 920, positive conditional: 920, positive unconditional: 0, negative: 68, negative conditional: 68, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 194, positive: 194, positive conditional: 1, positive unconditional: 193, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 194, positive: 194, positive conditional: 1, positive unconditional: 193, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 194, positive: 194, positive conditional: 0, positive unconditional: 194, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 988, positive: 726, positive conditional: 726, positive unconditional: 0, negative: 68, negative conditional: 68, negative unconditional: 0, unknown: 194, unknown conditional: 194, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 987, Positive cache size: 949, Positive conditional cache size: 949, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 81.5ms, 56 PlacesBefore, 56 PlacesAfterwards, 50 TransitionsBefore, 50 TransitionsAfterwards, 1268 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 1314 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 612, positive: 572, positive conditional: 572, positive unconditional: 0, negative: 40, negative conditional: 40, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 49, positive: 49, positive conditional: 4, positive unconditional: 45, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 49, positive: 49, positive conditional: 4, positive unconditional: 45, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 49, positive: 49, positive conditional: 0, positive unconditional: 49, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 612, positive: 523, positive conditional: 523, positive unconditional: 0, negative: 40, negative conditional: 40, negative unconditional: 0, unknown: 49, unknown conditional: 49, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1036, Positive cache size: 998, Positive conditional cache size: 998, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 929.0ms, 94 PlacesBefore, 95 PlacesAfterwards, 178 TransitionsBefore, 179 TransitionsAfterwards, 2510 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: 10, positive unconditional: 0, negative: 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: 5, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive 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: 5, positive conditional: 5, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1041, Positive cache size: 1003, Positive conditional cache size: 1003, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 441.3ms, 94 PlacesBefore, 94 PlacesAfterwards, 166 TransitionsBefore, 166 TransitionsAfterwards, 2290 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1041, Positive cache size: 1003, Positive conditional cache size: 1003, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 286.9ms, 95 PlacesBefore, 95 PlacesAfterwards, 162 TransitionsBefore, 162 TransitionsAfterwards, 2082 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1041, Positive cache size: 1003, Positive conditional cache size: 1003, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 602.1ms, 170 PlacesBefore, 155 PlacesAfterwards, 296 TransitionsBefore, 296 TransitionsAfterwards, 2642 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1041, Positive cache size: 1003, Positive conditional cache size: 1003, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2062.9ms, 298 PlacesBefore, 286 PlacesAfterwards, 762 TransitionsBefore, 762 TransitionsAfterwards, 5498 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1041, Positive cache size: 1003, Positive conditional cache size: 1003, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2768.6ms, 364 PlacesBefore, 364 PlacesAfterwards, 1132 TransitionsBefore, 1132 TransitionsAfterwards, 7294 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1041, Positive cache size: 1003, Positive conditional cache size: 1003, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3069.3ms, 411 PlacesBefore, 411 PlacesAfterwards, 1227 TransitionsBefore, 1229 TransitionsAfterwards, 8044 CoEnabledTransitionPairs, 2 FixpointIterations, 2 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 12 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 12, positive unconditional: 0, negative: 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: 6, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 12, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 6, unknown conditional: 6, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1047, Positive cache size: 1009, Positive conditional cache size: 1009, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3075.6ms, 453 PlacesBefore, 451 PlacesAfterwards, 1364 TransitionsBefore, 1364 TransitionsAfterwards, 8934 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1047, Positive cache size: 1009, Positive conditional cache size: 1009, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3435.6ms, 489 PlacesBefore, 489 PlacesAfterwards, 1520 TransitionsBefore, 1520 TransitionsAfterwards, 9812 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1047, Positive cache size: 1009, Positive conditional cache size: 1009, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3291.3ms, 514 PlacesBefore, 514 PlacesAfterwards, 1547 TransitionsBefore, 1547 TransitionsAfterwards, 10152 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1047, Positive cache size: 1009, Positive conditional cache size: 1009, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4282.8ms, 559 PlacesBefore, 556 PlacesAfterwards, 1704 TransitionsBefore, 1704 TransitionsAfterwards, 10692 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1047, Positive cache size: 1009, Positive conditional cache size: 1009, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5575.2ms, 634 PlacesBefore, 627 PlacesAfterwards, 2044 TransitionsBefore, 2044 TransitionsAfterwards, 11900 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1047, Positive cache size: 1009, Positive conditional cache size: 1009, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5495.9ms, 648 PlacesBefore, 648 PlacesAfterwards, 2176 TransitionsBefore, 2176 TransitionsAfterwards, 12562 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1047, Positive cache size: 1009, Positive conditional cache size: 1009, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7495.0ms, 692 PlacesBefore, 692 PlacesAfterwards, 2320 TransitionsBefore, 2320 TransitionsAfterwards, 13326 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1047, Positive cache size: 1009, Positive conditional cache size: 1009, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7824.0ms, 725 PlacesBefore, 725 PlacesAfterwards, 2619 TransitionsBefore, 2619 TransitionsAfterwards, 14568 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1047, Positive cache size: 1009, Positive conditional cache size: 1009, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7972.9ms, 753 PlacesBefore, 753 PlacesAfterwards, 2694 TransitionsBefore, 2694 TransitionsAfterwards, 15116 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1047, Positive cache size: 1009, Positive conditional cache size: 1009, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10317.8ms, 804 PlacesBefore, 804 PlacesAfterwards, 2945 TransitionsBefore, 2945 TransitionsAfterwards, 16658 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1047, Positive cache size: 1009, Positive conditional cache size: 1009, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10832.5ms, 849 PlacesBefore, 847 PlacesAfterwards, 3114 TransitionsBefore, 3114 TransitionsAfterwards, 17194 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1047, Positive cache size: 1009, Positive conditional cache size: 1009, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10698.2ms, 869 PlacesBefore, 869 PlacesAfterwards, 3149 TransitionsBefore, 3149 TransitionsAfterwards, 17492 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1047, Positive cache size: 1009, Positive conditional cache size: 1009, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12047.1ms, 893 PlacesBefore, 893 PlacesAfterwards, 3171 TransitionsBefore, 3171 TransitionsAfterwards, 17652 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1047, Positive cache size: 1009, Positive conditional cache size: 1009, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13143.6ms, 921 PlacesBefore, 921 PlacesAfterwards, 3451 TransitionsBefore, 3451 TransitionsAfterwards, 18734 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1047, Positive cache size: 1009, Positive conditional cache size: 1009, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13978.2ms, 972 PlacesBefore, 972 PlacesAfterwards, 3592 TransitionsBefore, 3592 TransitionsAfterwards, 19214 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1047, Positive cache size: 1009, Positive conditional cache size: 1009, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15178.8ms, 1000 PlacesBefore, 1000 PlacesAfterwards, 3745 TransitionsBefore, 3745 TransitionsAfterwards, 20272 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1047, Positive cache size: 1009, Positive conditional cache size: 1009, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - TimeoutResultAtElement [Line: 95]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 95). Cancelled while CegarLoopForPetriNetWithRepeatedLiptonReduction was enhancing Floyd-Hoare automaton (13states, 48/92 universal loopers) in iteration 26,while PetriNetUnfolder was constructing finite prefix that currently has 190130 conditions, 15104 events (9661/15103 cut-off events. For 1684683/1687873 co-relation queries the response was YES. Maximal size of possible extension queue 1099. Compared 110093 event pairs, 1340 based on Foata normal form. 21/11932 useless extension candidates. Maximal degree in co-relation 189838. Up to 12942 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 17.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: TIMEOUT, OverallTime: 778778.8ms, OverallIterations: 26, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 624182.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 720.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1717 SDtfs, 2472 SDslu, 2320 SDs, 0 SdLazy, 48332 SolverSat, 2031 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 32410.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1022 GetRequests, 13 SyntacticMatches, 36 SemanticMatches, 973 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12881 ImplicationChecksByTransitivity, 35102.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=60233occurred in iteration=25, InterpolantAutomatonStates: 902, 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: 77.5ms SsaConstructionTime, 301.8ms SatisfiabilityAnalysisTime, 8103.5ms InterpolantComputationTime, 821 NumberOfCodeBlocks, 821 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 795 ConstructedInterpolants, 0 QuantifiedInterpolants, 8809 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 26 InterpolantComputations, 26 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