/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/lamport.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 05:35:09,245 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 05:35:09,250 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 05:35:09,303 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-29 05:35:09,303 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-29 05:35:09,307 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-29 05:35:09,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-29 05:35:09,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-29 05:35:09,320 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-29 05:35:09,326 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-29 05:35:09,327 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-29 05:35:09,329 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-29 05:35:09,330 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 05:35:09,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 05:35:09,334 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 05:35:09,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 05:35:09,340 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 05:35:09,341 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 05:35:09,349 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 05:35:09,353 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 05:35:09,357 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 05:35:09,359 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 05:35:09,360 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 05:35:09,363 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 05:35:09,370 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 05:35:09,390 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 05:35:09,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 05:35:09,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 05:35:09,394 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 05:35:09,457 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 05:35:09,457 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 05:35:09,462 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 05:35:09,463 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 05:35:09,463 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 05:35:09,463 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 05:35:09,464 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 05:35:09,464 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 05:35:09,464 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 05:35:09,465 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 05:35:09,466 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 05:35:09,466 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 05:35:09,467 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 05:35:09,467 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 05:35:09,467 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 05:35:09,467 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 05:35:09,468 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 05:35:09,468 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 05:35:09,468 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 05:35:09,468 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 05:35:09,469 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 05:35:09,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 05:35:09,470 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 05:35:09,470 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 05:35:09,470 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 05:35:09,470 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 05:35:09,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 05:35:09,471 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 05:35:09,471 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 05:35:09,471 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 05:35:09,471 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 05:35:09,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 05:35:09,925 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 05:35:09,928 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 05:35:09,930 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-04-29 05:35:09,931 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-04-29 05:35:09,932 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/lamport.wvr.bpl [2021-04-29 05:35:09,933 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/lamport.wvr.bpl' [2021-04-29 05:35:09,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 05:35:10,025 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-04-29 05:35:10,027 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 05:35:10,027 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 05:35:10,028 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 05:35:10,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:35:09" (1/1) ... [2021-04-29 05:35:10,057 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:35:09" (1/1) ... [2021-04-29 05:35:10,067 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 05:35:10,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 05:35:10,069 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 05:35:10,069 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 05:35:10,080 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:35:09" (1/1) ... [2021-04-29 05:35:10,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:35:09" (1/1) ... [2021-04-29 05:35:10,082 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:35:09" (1/1) ... [2021-04-29 05:35:10,083 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:35:09" (1/1) ... [2021-04-29 05:35:10,086 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:35:09" (1/1) ... [2021-04-29 05:35:10,088 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:35:09" (1/1) ... [2021-04-29 05:35:10,089 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:35:09" (1/1) ... [2021-04-29 05:35:10,091 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 05:35:10,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 05:35:10,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 05:35:10,092 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 05:35:10,094 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:35:09" (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 05:35:10,244 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-04-29 05:35:10,246 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-04-29 05:35:10,247 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-04-29 05:35:10,247 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-04-29 05:35:10,248 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-04-29 05:35:10,248 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-04-29 05:35:10,248 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-04-29 05:35:10,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 05:35:10,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 05:35:10,249 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-04-29 05:35:10,249 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-04-29 05:35:10,249 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-04-29 05:35:10,250 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 05:35:10,492 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 05:35:10,493 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-04-29 05:35:10,497 INFO L202 PluginConnector]: Adding new model lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 05:35:10 BoogieIcfgContainer [2021-04-29 05:35:10,497 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 05:35:10,500 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 05:35:10,500 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 05:35:10,504 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 05:35:10,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:35:09" (1/2) ... [2021-04-29 05:35:10,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@567e3e76 and model type lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 05:35:10, skipping insertion in model container [2021-04-29 05:35:10,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 05:35:10" (2/2) ... [2021-04-29 05:35:10,517 INFO L111 eAbstractionObserver]: Analyzing ICFG lamport.wvr.bpl [2021-04-29 05:35:10,525 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 05:35:10,529 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 05:35:10,531 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 05:35:10,587 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-04-29 05:35:10,613 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-04-29 05:35:10,647 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 05:35:10,648 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 05:35:10,648 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 05:35:10,648 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 05:35:10,649 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 05:35:10,649 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 05:35:10,649 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 05:35:10,649 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 05:35:10,665 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 41 transitions, 106 flow [2021-04-29 05:35:10,723 INFO L129 PetriNetUnfolder]: 0/38 cut-off events. [2021-04-29 05:35:10,723 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-04-29 05:35:10,726 INFO L84 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 38 events. 0/38 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-29 05:35:10,726 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 41 transitions, 106 flow [2021-04-29 05:35:10,733 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 36 transitions, 90 flow [2021-04-29 05:35:10,735 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:35:10,757 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 36 transitions, 90 flow [2021-04-29 05:35:10,763 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 36 transitions, 90 flow [2021-04-29 05:35:10,766 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 36 transitions, 90 flow [2021-04-29 05:35:10,793 INFO L129 PetriNetUnfolder]: 0/36 cut-off events. [2021-04-29 05:35:10,793 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-04-29 05:35:10,793 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 36 events. 0/36 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-29 05:35:10,798 INFO L146 LiptonReduction]: Number of co-enabled transitions 412 [2021-04-29 05:35:11,531 INFO L158 LiptonReduction]: Checked pairs total: 1934 [2021-04-29 05:35:11,532 INFO L160 LiptonReduction]: Total number of compositions: 15 [2021-04-29 05:35:11,546 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 812 [2021-04-29 05:35:11,595 INFO L129 PetriNetUnfolder]: 0/36 cut-off events. [2021-04-29 05:35:11,595 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-04-29 05:35:11,596 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:35:11,596 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:35:11,597 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:35:11,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:35:11,620 INFO L82 PathProgramCache]: Analyzing trace with hash -2053550898, now seen corresponding path program 1 times [2021-04-29 05:35:11,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:35:11,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794864082] [2021-04-29 05:35:11,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:35:11,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:35:11,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:11,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:35:11,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:11,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:35:11,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:11,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:35:11,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:11,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:35:11,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:11,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:35:11,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:11,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:35:11,937 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 05:35:11,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794864082] [2021-04-29 05:35:11,940 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:35:11,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-29 05:35:11,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10209107] [2021-04-29 05:35:11,952 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-29 05:35:11,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:35:11,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-29 05:35:11,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-04-29 05:35:11,977 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 56 [2021-04-29 05:35:11,984 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 37 transitions, 92 flow. Second operand has 7 states, 7 states have (on average 41.0) internal successors, (287), 7 states have internal predecessors, (287), 0 states have call successors, (0), 0 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 05:35:11,984 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:35:11,984 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 56 [2021-04-29 05:35:11,987 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:35:12,337 INFO L129 PetriNetUnfolder]: 38/232 cut-off events. [2021-04-29 05:35:12,337 INFO L130 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2021-04-29 05:35:12,342 INFO L84 FinitePrefix]: Finished finitePrefix Result has 386 conditions, 232 events. 38/232 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1509 event pairs, 1 based on Foata normal form. 1/164 useless extension candidates. Maximal degree in co-relation 340. Up to 50 conditions per place. [2021-04-29 05:35:12,345 INFO L132 encePairwiseOnDemand]: 42/56 looper letters, 12 selfloop transitions, 11 changer transitions 24/69 dead transitions. [2021-04-29 05:35:12,345 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 69 transitions, 250 flow [2021-04-29 05:35:12,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-29 05:35:12,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-04-29 05:35:12,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 568 transitions. [2021-04-29 05:35:12,374 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7802197802197802 [2021-04-29 05:35:12,374 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 568 transitions. [2021-04-29 05:35:12,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 568 transitions. [2021-04-29 05:35:12,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:35:12,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 568 transitions. [2021-04-29 05:35:12,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 43.69230769230769) internal successors, (568), 13 states have internal predecessors, (568), 0 states have call successors, (0), 0 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 05:35:12,405 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 56.0) internal successors, (784), 14 states have internal predecessors, (784), 0 states have call successors, (0), 0 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 05:35:12,406 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 56.0) internal successors, (784), 14 states have internal predecessors, (784), 0 states have call successors, (0), 0 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 05:35:12,409 INFO L185 Difference]: Start difference. First operand has 47 places, 37 transitions, 92 flow. Second operand 13 states and 568 transitions. [2021-04-29 05:35:12,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 69 transitions, 250 flow [2021-04-29 05:35:12,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 69 transitions, 238 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-04-29 05:35:12,422 INFO L241 Difference]: Finished difference. Result has 58 places, 39 transitions, 131 flow [2021-04-29 05:35:12,425 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=131, PETRI_PLACES=58, PETRI_TRANSITIONS=39} [2021-04-29 05:35:12,426 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 11 predicate places. [2021-04-29 05:35:12,426 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:35:12,426 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 39 transitions, 131 flow [2021-04-29 05:35:12,427 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 39 transitions, 131 flow [2021-04-29 05:35:12,429 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 39 transitions, 131 flow [2021-04-29 05:35:12,451 INFO L129 PetriNetUnfolder]: 5/75 cut-off events. [2021-04-29 05:35:12,451 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-04-29 05:35:12,453 INFO L84 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 75 events. 5/75 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 275 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 107. Up to 10 conditions per place. [2021-04-29 05:35:12,455 INFO L146 LiptonReduction]: Number of co-enabled transitions 414 [2021-04-29 05:35:12,464 INFO L158 LiptonReduction]: Checked pairs total: 303 [2021-04-29 05:35:12,465 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:35:12,465 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 39 [2021-04-29 05:35:12,469 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 39 transitions, 131 flow [2021-04-29 05:35:12,470 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.0) internal successors, (287), 7 states have internal predecessors, (287), 0 states have call successors, (0), 0 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 05:35:12,471 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:35:12,472 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:35:12,473 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 05:35:12,473 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:35:12,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:35:12,475 INFO L82 PathProgramCache]: Analyzing trace with hash -1082873400, now seen corresponding path program 2 times [2021-04-29 05:35:12,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:35:12,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643019934] [2021-04-29 05:35:12,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:35:12,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:35:12,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:12,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:35:12,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:12,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:35:12,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:12,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:35:12,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:12,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:35:12,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:12,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 05:35:12,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:12,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:35:12,618 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 05:35:12,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643019934] [2021-04-29 05:35:12,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:35:12,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-29 05:35:12,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600043300] [2021-04-29 05:35:12,621 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-29 05:35:12,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:35:12,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-29 05:35:12,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-04-29 05:35:12,624 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 56 [2021-04-29 05:35:12,625 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 39 transitions, 131 flow. Second operand has 7 states, 7 states have (on average 36.285714285714285) internal successors, (254), 7 states have internal predecessors, (254), 0 states have call successors, (0), 0 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 05:35:12,625 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:35:12,625 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 56 [2021-04-29 05:35:12,625 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:35:12,817 INFO L129 PetriNetUnfolder]: 183/568 cut-off events. [2021-04-29 05:35:12,817 INFO L130 PetriNetUnfolder]: For 22/23 co-relation queries the response was YES. [2021-04-29 05:35:12,822 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1141 conditions, 568 events. 183/568 cut-off events. For 22/23 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 4013 event pairs, 13 based on Foata normal form. 3/392 useless extension candidates. Maximal degree in co-relation 1121. Up to 127 conditions per place. [2021-04-29 05:35:12,825 INFO L132 encePairwiseOnDemand]: 43/56 looper letters, 25 selfloop transitions, 29 changer transitions 1/81 dead transitions. [2021-04-29 05:35:12,825 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 81 transitions, 325 flow [2021-04-29 05:35:12,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-29 05:35:12,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-29 05:35:12,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 371 transitions. [2021-04-29 05:35:12,828 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7361111111111112 [2021-04-29 05:35:12,828 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 371 transitions. [2021-04-29 05:35:12,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 371 transitions. [2021-04-29 05:35:12,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:35:12,829 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 371 transitions. [2021-04-29 05:35:12,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 41.22222222222222) internal successors, (371), 9 states have internal predecessors, (371), 0 states have call successors, (0), 0 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 05:35:12,832 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 56.0) internal successors, (560), 10 states have internal predecessors, (560), 0 states have call successors, (0), 0 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 05:35:12,833 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 56.0) internal successors, (560), 10 states have internal predecessors, (560), 0 states have call successors, (0), 0 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 05:35:12,833 INFO L185 Difference]: Start difference. First operand has 44 places, 39 transitions, 131 flow. Second operand 9 states and 371 transitions. [2021-04-29 05:35:12,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 81 transitions, 325 flow [2021-04-29 05:35:12,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 81 transitions, 321 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-04-29 05:35:12,839 INFO L241 Difference]: Finished difference. Result has 56 places, 69 transitions, 326 flow [2021-04-29 05:35:12,839 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=326, PETRI_PLACES=56, PETRI_TRANSITIONS=69} [2021-04-29 05:35:12,840 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 9 predicate places. [2021-04-29 05:35:12,840 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:35:12,840 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 69 transitions, 326 flow [2021-04-29 05:35:12,841 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 69 transitions, 326 flow [2021-04-29 05:35:12,842 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 56 places, 69 transitions, 326 flow [2021-04-29 05:35:12,882 INFO L129 PetriNetUnfolder]: 108/370 cut-off events. [2021-04-29 05:35:12,882 INFO L130 PetriNetUnfolder]: For 88/92 co-relation queries the response was YES. [2021-04-29 05:35:12,884 INFO L84 FinitePrefix]: Finished finitePrefix Result has 874 conditions, 370 events. 108/370 cut-off events. For 88/92 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2323 event pairs, 2 based on Foata normal form. 1/249 useless extension candidates. Maximal degree in co-relation 819. Up to 89 conditions per place. [2021-04-29 05:35:12,890 INFO L146 LiptonReduction]: Number of co-enabled transitions 646 [2021-04-29 05:35:12,925 INFO L158 LiptonReduction]: Checked pairs total: 90 [2021-04-29 05:35:12,926 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:35:12,926 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 86 [2021-04-29 05:35:12,928 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 69 transitions, 326 flow [2021-04-29 05:35:12,928 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 36.285714285714285) internal successors, (254), 7 states have internal predecessors, (254), 0 states have call successors, (0), 0 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 05:35:12,928 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:35:12,929 INFO L263 CegarLoopForPetriNet]: trace histogram [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 05:35:12,929 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 05:35:12,929 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:35:12,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:35:12,930 INFO L82 PathProgramCache]: Analyzing trace with hash -728144194, now seen corresponding path program 3 times [2021-04-29 05:35:12,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:35:12,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552503159] [2021-04-29 05:35:12,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:35:12,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:35:12,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:12,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:35:12,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:12,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:35:12,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:12,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:35:12,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:12,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:35:12,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:12,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:35:12,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:12,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:35:12,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:35:12,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552503159] [2021-04-29 05:35:12,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:35:12,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-29 05:35:12,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514786577] [2021-04-29 05:35:12,996 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-29 05:35:12,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:35:12,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-29 05:35:12,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-04-29 05:35:12,998 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 56 [2021-04-29 05:35:12,999 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 69 transitions, 326 flow. Second operand has 7 states, 7 states have (on average 41.0) internal successors, (287), 7 states have internal predecessors, (287), 0 states have call successors, (0), 0 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 05:35:12,999 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:35:12,999 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 56 [2021-04-29 05:35:12,999 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:35:13,228 INFO L129 PetriNetUnfolder]: 257/803 cut-off events. [2021-04-29 05:35:13,228 INFO L130 PetriNetUnfolder]: For 265/278 co-relation queries the response was YES. [2021-04-29 05:35:13,232 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2064 conditions, 803 events. 257/803 cut-off events. For 265/278 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 6087 event pairs, 9 based on Foata normal form. 14/561 useless extension candidates. Maximal degree in co-relation 1941. Up to 185 conditions per place. [2021-04-29 05:35:13,237 INFO L132 encePairwiseOnDemand]: 49/56 looper letters, 14 selfloop transitions, 17 changer transitions 2/85 dead transitions. [2021-04-29 05:35:13,238 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 85 transitions, 458 flow [2021-04-29 05:35:13,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-29 05:35:13,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-29 05:35:13,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 386 transitions. [2021-04-29 05:35:13,241 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7658730158730159 [2021-04-29 05:35:13,241 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 386 transitions. [2021-04-29 05:35:13,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 386 transitions. [2021-04-29 05:35:13,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:35:13,242 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 386 transitions. [2021-04-29 05:35:13,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 42.888888888888886) internal successors, (386), 9 states have internal predecessors, (386), 0 states have call successors, (0), 0 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 05:35:13,246 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 56.0) internal successors, (560), 10 states have internal predecessors, (560), 0 states have call successors, (0), 0 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 05:35:13,247 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 56.0) internal successors, (560), 10 states have internal predecessors, (560), 0 states have call successors, (0), 0 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 05:35:13,247 INFO L185 Difference]: Start difference. First operand has 56 places, 69 transitions, 326 flow. Second operand 9 states and 386 transitions. [2021-04-29 05:35:13,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 85 transitions, 458 flow [2021-04-29 05:35:13,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 85 transitions, 458 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 05:35:13,263 INFO L241 Difference]: Finished difference. Result has 69 places, 78 transitions, 435 flow [2021-04-29 05:35:13,264 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=435, PETRI_PLACES=69, PETRI_TRANSITIONS=78} [2021-04-29 05:35:13,264 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 22 predicate places. [2021-04-29 05:35:13,264 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:35:13,265 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 78 transitions, 435 flow [2021-04-29 05:35:13,266 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 78 transitions, 435 flow [2021-04-29 05:35:13,267 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 78 transitions, 435 flow [2021-04-29 05:35:13,352 INFO L129 PetriNetUnfolder]: 178/619 cut-off events. [2021-04-29 05:35:13,353 INFO L130 PetriNetUnfolder]: For 338/348 co-relation queries the response was YES. [2021-04-29 05:35:13,355 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1625 conditions, 619 events. 178/619 cut-off events. For 338/348 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 4577 event pairs, 4 based on Foata normal form. 4/419 useless extension candidates. Maximal degree in co-relation 1579. Up to 149 conditions per place. [2021-04-29 05:35:13,365 INFO L146 LiptonReduction]: Number of co-enabled transitions 730 [2021-04-29 05:35:13,391 INFO L158 LiptonReduction]: Checked pairs total: 94 [2021-04-29 05:35:13,391 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:35:13,391 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 127 [2021-04-29 05:35:13,394 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 78 transitions, 435 flow [2021-04-29 05:35:13,395 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.0) internal successors, (287), 7 states have internal predecessors, (287), 0 states have call successors, (0), 0 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 05:35:13,395 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:35:13,395 INFO L263 CegarLoopForPetriNet]: trace histogram [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 05:35:13,395 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 05:35:13,395 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:35:13,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:35:13,396 INFO L82 PathProgramCache]: Analyzing trace with hash 1830346990, now seen corresponding path program 4 times [2021-04-29 05:35:13,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:35:13,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351448830] [2021-04-29 05:35:13,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:35:13,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:35:13,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:13,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:35:13,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:13,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:35:13,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:13,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:35:13,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:13,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:35:13,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:13,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:35:13,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:13,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:35:13,506 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 05:35:13,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351448830] [2021-04-29 05:35:13,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:35:13,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-29 05:35:13,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039793182] [2021-04-29 05:35:13,511 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-29 05:35:13,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:35:13,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-29 05:35:13,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-04-29 05:35:13,513 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 56 [2021-04-29 05:35:13,514 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 78 transitions, 435 flow. Second operand has 7 states, 7 states have (on average 41.0) internal successors, (287), 7 states have internal predecessors, (287), 0 states have call successors, (0), 0 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 05:35:13,514 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:35:13,514 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 56 [2021-04-29 05:35:13,515 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:35:13,747 INFO L129 PetriNetUnfolder]: 269/897 cut-off events. [2021-04-29 05:35:13,747 INFO L130 PetriNetUnfolder]: For 620/653 co-relation queries the response was YES. [2021-04-29 05:35:13,751 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2533 conditions, 897 events. 269/897 cut-off events. For 620/653 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 7275 event pairs, 9 based on Foata normal form. 24/631 useless extension candidates. Maximal degree in co-relation 2460. Up to 207 conditions per place. [2021-04-29 05:35:13,755 INFO L132 encePairwiseOnDemand]: 49/56 looper letters, 27 selfloop transitions, 14 changer transitions 7/96 dead transitions. [2021-04-29 05:35:13,756 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 96 transitions, 638 flow [2021-04-29 05:35:13,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-29 05:35:13,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-29 05:35:13,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 388 transitions. [2021-04-29 05:35:13,758 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7698412698412699 [2021-04-29 05:35:13,758 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 388 transitions. [2021-04-29 05:35:13,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 388 transitions. [2021-04-29 05:35:13,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:35:13,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 388 transitions. [2021-04-29 05:35:13,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 43.111111111111114) internal successors, (388), 9 states have internal predecessors, (388), 0 states have call successors, (0), 0 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 05:35:13,763 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 56.0) internal successors, (560), 10 states have internal predecessors, (560), 0 states have call successors, (0), 0 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 05:35:13,763 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 56.0) internal successors, (560), 10 states have internal predecessors, (560), 0 states have call successors, (0), 0 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 05:35:13,763 INFO L185 Difference]: Start difference. First operand has 67 places, 78 transitions, 435 flow. Second operand 9 states and 388 transitions. [2021-04-29 05:35:13,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 96 transitions, 638 flow [2021-04-29 05:35:13,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 96 transitions, 606 flow, removed 8 selfloop flow, removed 4 redundant places. [2021-04-29 05:35:13,784 INFO L241 Difference]: Finished difference. Result has 77 places, 80 transitions, 496 flow [2021-04-29 05:35:13,785 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=496, PETRI_PLACES=77, PETRI_TRANSITIONS=80} [2021-04-29 05:35:13,785 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 30 predicate places. [2021-04-29 05:35:13,785 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:35:13,786 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 80 transitions, 496 flow [2021-04-29 05:35:13,786 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 80 transitions, 496 flow [2021-04-29 05:35:13,787 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 73 places, 80 transitions, 496 flow [2021-04-29 05:35:13,862 INFO L129 PetriNetUnfolder]: 201/688 cut-off events. [2021-04-29 05:35:13,863 INFO L130 PetriNetUnfolder]: For 476/491 co-relation queries the response was YES. [2021-04-29 05:35:13,866 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1852 conditions, 688 events. 201/688 cut-off events. For 476/491 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 5323 event pairs, 6 based on Foata normal form. 6/463 useless extension candidates. Maximal degree in co-relation 1794. Up to 179 conditions per place. [2021-04-29 05:35:13,874 INFO L146 LiptonReduction]: Number of co-enabled transitions 722 [2021-04-29 05:35:13,902 INFO L158 LiptonReduction]: Checked pairs total: 90 [2021-04-29 05:35:13,903 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:35:13,903 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 118 [2021-04-29 05:35:13,910 INFO L480 AbstractCegarLoop]: Abstraction has has 73 places, 80 transitions, 496 flow [2021-04-29 05:35:13,910 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.0) internal successors, (287), 7 states have internal predecessors, (287), 0 states have call successors, (0), 0 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 05:35:13,910 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:35:13,911 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:35:13,911 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 05:35:13,911 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:35:13,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:35:13,912 INFO L82 PathProgramCache]: Analyzing trace with hash -762065008, now seen corresponding path program 5 times [2021-04-29 05:35:13,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:35:13,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846117686] [2021-04-29 05:35:13,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:35:13,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:35:13,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:13,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:35:13,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:13,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:35:13,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:13,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:35:14,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:14,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:35:14,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:14,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:35:14,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:14,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:35:14,015 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 05:35:14,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846117686] [2021-04-29 05:35:14,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:35:14,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-29 05:35:14,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244548039] [2021-04-29 05:35:14,016 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-29 05:35:14,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:35:14,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-29 05:35:14,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-04-29 05:35:14,019 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 56 [2021-04-29 05:35:14,020 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 80 transitions, 496 flow. Second operand has 7 states, 7 states have (on average 41.0) internal successors, (287), 7 states have internal predecessors, (287), 0 states have call successors, (0), 0 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 05:35:14,020 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:35:14,020 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 56 [2021-04-29 05:35:14,020 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:35:14,225 INFO L129 PetriNetUnfolder]: 287/933 cut-off events. [2021-04-29 05:35:14,225 INFO L130 PetriNetUnfolder]: For 899/948 co-relation queries the response was YES. [2021-04-29 05:35:14,230 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2745 conditions, 933 events. 287/933 cut-off events. For 899/948 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 7691 event pairs, 9 based on Foata normal form. 30/654 useless extension candidates. Maximal degree in co-relation 2668. Up to 237 conditions per place. [2021-04-29 05:35:14,234 INFO L132 encePairwiseOnDemand]: 49/56 looper letters, 26 selfloop transitions, 15 changer transitions 0/89 dead transitions. [2021-04-29 05:35:14,234 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 89 transitions, 654 flow [2021-04-29 05:35:14,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-29 05:35:14,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-04-29 05:35:14,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 344 transitions. [2021-04-29 05:35:14,236 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7678571428571429 [2021-04-29 05:35:14,237 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 344 transitions. [2021-04-29 05:35:14,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 344 transitions. [2021-04-29 05:35:14,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:35:14,237 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 344 transitions. [2021-04-29 05:35:14,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 43.0) internal successors, (344), 8 states have internal predecessors, (344), 0 states have call successors, (0), 0 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 05:35:14,239 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 56.0) internal successors, (504), 9 states have internal predecessors, (504), 0 states have call successors, (0), 0 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 05:35:14,240 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 56.0) internal successors, (504), 9 states have internal predecessors, (504), 0 states have call successors, (0), 0 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 05:35:14,240 INFO L185 Difference]: Start difference. First operand has 73 places, 80 transitions, 496 flow. Second operand 8 states and 344 transitions. [2021-04-29 05:35:14,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 89 transitions, 654 flow [2021-04-29 05:35:14,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 89 transitions, 617 flow, removed 14 selfloop flow, removed 4 redundant places. [2021-04-29 05:35:14,256 INFO L241 Difference]: Finished difference. Result has 79 places, 87 transitions, 571 flow [2021-04-29 05:35:14,257 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=469, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=571, PETRI_PLACES=79, PETRI_TRANSITIONS=87} [2021-04-29 05:35:14,257 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 32 predicate places. [2021-04-29 05:35:14,257 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:35:14,257 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 87 transitions, 571 flow [2021-04-29 05:35:14,258 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 87 transitions, 571 flow [2021-04-29 05:35:14,258 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 79 places, 87 transitions, 571 flow [2021-04-29 05:35:14,350 INFO L129 PetriNetUnfolder]: 239/790 cut-off events. [2021-04-29 05:35:14,351 INFO L130 PetriNetUnfolder]: For 606/615 co-relation queries the response was YES. [2021-04-29 05:35:14,355 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2202 conditions, 790 events. 239/790 cut-off events. For 606/615 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 6344 event pairs, 6 based on Foata normal form. 6/531 useless extension candidates. Maximal degree in co-relation 2054. Up to 207 conditions per place. [2021-04-29 05:35:14,368 INFO L146 LiptonReduction]: Number of co-enabled transitions 870 [2021-04-29 05:35:14,389 INFO L158 LiptonReduction]: Checked pairs total: 90 [2021-04-29 05:35:14,389 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:35:14,389 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 132 [2021-04-29 05:35:14,390 INFO L480 AbstractCegarLoop]: Abstraction has has 79 places, 87 transitions, 571 flow [2021-04-29 05:35:14,391 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.0) internal successors, (287), 7 states have internal predecessors, (287), 0 states have call successors, (0), 0 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 05:35:14,395 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:35:14,395 INFO L263 CegarLoopForPetriNet]: trace histogram [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 05:35:14,396 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 05:35:14,396 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:35:14,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:35:14,396 INFO L82 PathProgramCache]: Analyzing trace with hash 1251244452, now seen corresponding path program 6 times [2021-04-29 05:35:14,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:35:14,397 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525797039] [2021-04-29 05:35:14,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:35:14,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:35:14,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:14,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:35:14,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:14,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:35:14,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:14,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:35:14,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:14,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:35:14,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:14,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:35:14,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:14,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:35:14,442 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 05:35:14,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525797039] [2021-04-29 05:35:14,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:35:14,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-29 05:35:14,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35792554] [2021-04-29 05:35:14,443 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-29 05:35:14,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:35:14,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-29 05:35:14,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-04-29 05:35:14,445 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 56 [2021-04-29 05:35:14,445 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 87 transitions, 571 flow. Second operand has 7 states, 7 states have (on average 41.0) internal successors, (287), 7 states have internal predecessors, (287), 0 states have call successors, (0), 0 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 05:35:14,445 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:35:14,445 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 56 [2021-04-29 05:35:14,446 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:35:14,684 INFO L129 PetriNetUnfolder]: 291/974 cut-off events. [2021-04-29 05:35:14,684 INFO L130 PetriNetUnfolder]: For 935/992 co-relation queries the response was YES. [2021-04-29 05:35:14,689 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2928 conditions, 974 events. 291/974 cut-off events. For 935/992 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 8248 event pairs, 9 based on Foata normal form. 38/689 useless extension candidates. Maximal degree in co-relation 2719. Up to 251 conditions per place. [2021-04-29 05:35:14,693 INFO L132 encePairwiseOnDemand]: 49/56 looper letters, 26 selfloop transitions, 17 changer transitions 0/91 dead transitions. [2021-04-29 05:35:14,693 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 91 transitions, 691 flow [2021-04-29 05:35:14,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-29 05:35:14,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-29 05:35:14,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 385 transitions. [2021-04-29 05:35:14,695 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7638888888888888 [2021-04-29 05:35:14,696 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 385 transitions. [2021-04-29 05:35:14,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 385 transitions. [2021-04-29 05:35:14,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:35:14,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 385 transitions. [2021-04-29 05:35:14,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 42.77777777777778) internal successors, (385), 9 states have internal predecessors, (385), 0 states have call successors, (0), 0 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 05:35:14,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 56.0) internal successors, (560), 10 states have internal predecessors, (560), 0 states have call successors, (0), 0 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 05:35:14,700 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 56.0) internal successors, (560), 10 states have internal predecessors, (560), 0 states have call successors, (0), 0 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 05:35:14,700 INFO L185 Difference]: Start difference. First operand has 79 places, 87 transitions, 571 flow. Second operand 9 states and 385 transitions. [2021-04-29 05:35:14,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 91 transitions, 691 flow [2021-04-29 05:35:14,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 91 transitions, 652 flow, removed 12 selfloop flow, removed 3 redundant places. [2021-04-29 05:35:14,720 INFO L241 Difference]: Finished difference. Result has 86 places, 89 transitions, 595 flow [2021-04-29 05:35:14,721 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=532, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=595, PETRI_PLACES=86, PETRI_TRANSITIONS=89} [2021-04-29 05:35:14,721 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 39 predicate places. [2021-04-29 05:35:14,721 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:35:14,721 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 89 transitions, 595 flow [2021-04-29 05:35:14,722 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 89 transitions, 595 flow [2021-04-29 05:35:14,723 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 89 transitions, 595 flow [2021-04-29 05:35:14,821 INFO L129 PetriNetUnfolder]: 233/793 cut-off events. [2021-04-29 05:35:14,822 INFO L130 PetriNetUnfolder]: For 631/640 co-relation queries the response was YES. [2021-04-29 05:35:14,826 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2262 conditions, 793 events. 233/793 cut-off events. For 631/640 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 6470 event pairs, 6 based on Foata normal form. 6/540 useless extension candidates. Maximal degree in co-relation 2090. Up to 205 conditions per place. [2021-04-29 05:35:14,837 INFO L146 LiptonReduction]: Number of co-enabled transitions 884 [2021-04-29 05:35:14,860 INFO L158 LiptonReduction]: Checked pairs total: 90 [2021-04-29 05:35:14,860 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:35:14,860 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 139 [2021-04-29 05:35:14,861 INFO L480 AbstractCegarLoop]: Abstraction has has 86 places, 89 transitions, 595 flow [2021-04-29 05:35:14,862 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.0) internal successors, (287), 7 states have internal predecessors, (287), 0 states have call successors, (0), 0 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 05:35:14,862 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:35:14,862 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:35:14,862 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-29 05:35:14,863 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:35:14,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:35:14,863 INFO L82 PathProgramCache]: Analyzing trace with hash 575361946, now seen corresponding path program 7 times [2021-04-29 05:35:14,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:35:14,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890752656] [2021-04-29 05:35:14,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:35:14,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:35:14,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:14,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:35:14,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:14,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:35:14,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:14,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:35:14,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:14,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:35:14,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:14,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:35:14,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:14,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:35:14,908 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 05:35:14,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890752656] [2021-04-29 05:35:14,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:35:14,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-29 05:35:14,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045410152] [2021-04-29 05:35:14,909 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-29 05:35:14,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:35:14,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-29 05:35:14,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-04-29 05:35:14,910 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 56 [2021-04-29 05:35:14,911 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 89 transitions, 595 flow. Second operand has 7 states, 7 states have (on average 41.0) internal successors, (287), 7 states have internal predecessors, (287), 0 states have call successors, (0), 0 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 05:35:14,911 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:35:14,911 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 56 [2021-04-29 05:35:14,911 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:35:15,129 INFO L129 PetriNetUnfolder]: 296/1005 cut-off events. [2021-04-29 05:35:15,129 INFO L130 PetriNetUnfolder]: For 1022/1083 co-relation queries the response was YES. [2021-04-29 05:35:15,134 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3068 conditions, 1005 events. 296/1005 cut-off events. For 1022/1083 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 8663 event pairs, 9 based on Foata normal form. 42/712 useless extension candidates. Maximal degree in co-relation 2856. Up to 261 conditions per place. [2021-04-29 05:35:15,139 INFO L132 encePairwiseOnDemand]: 49/56 looper letters, 25 selfloop transitions, 11 changer transitions 7/91 dead transitions. [2021-04-29 05:35:15,139 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 91 transitions, 706 flow [2021-04-29 05:35:15,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-04-29 05:35:15,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-04-29 05:35:15,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 425 transitions. [2021-04-29 05:35:15,142 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7589285714285714 [2021-04-29 05:35:15,142 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 425 transitions. [2021-04-29 05:35:15,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 425 transitions. [2021-04-29 05:35:15,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:35:15,143 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 425 transitions. [2021-04-29 05:35:15,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 42.5) internal successors, (425), 10 states have internal predecessors, (425), 0 states have call successors, (0), 0 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 05:35:15,146 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 56.0) internal successors, (616), 11 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:35:15,146 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 56.0) internal successors, (616), 11 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:35:15,146 INFO L185 Difference]: Start difference. First operand has 86 places, 89 transitions, 595 flow. Second operand 10 states and 425 transitions. [2021-04-29 05:35:15,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 91 transitions, 706 flow [2021-04-29 05:35:15,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 91 transitions, 639 flow, removed 16 selfloop flow, removed 6 redundant places. [2021-04-29 05:35:15,169 INFO L241 Difference]: Finished difference. Result has 91 places, 83 transitions, 529 flow [2021-04-29 05:35:15,169 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=537, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=529, PETRI_PLACES=91, PETRI_TRANSITIONS=83} [2021-04-29 05:35:15,169 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 44 predicate places. [2021-04-29 05:35:15,169 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:35:15,170 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 83 transitions, 529 flow [2021-04-29 05:35:15,170 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 83 transitions, 529 flow [2021-04-29 05:35:15,171 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 83 transitions, 529 flow [2021-04-29 05:35:15,259 INFO L129 PetriNetUnfolder]: 244/816 cut-off events. [2021-04-29 05:35:15,259 INFO L130 PetriNetUnfolder]: For 651/660 co-relation queries the response was YES. [2021-04-29 05:35:15,266 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2287 conditions, 816 events. 244/816 cut-off events. For 651/660 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 6647 event pairs, 6 based on Foata normal form. 6/547 useless extension candidates. Maximal degree in co-relation 2251. Up to 219 conditions per place. [2021-04-29 05:35:15,278 INFO L146 LiptonReduction]: Number of co-enabled transitions 770 [2021-04-29 05:35:15,299 INFO L158 LiptonReduction]: Checked pairs total: 90 [2021-04-29 05:35:15,299 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:35:15,299 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 130 [2021-04-29 05:35:15,301 INFO L480 AbstractCegarLoop]: Abstraction has has 83 places, 83 transitions, 529 flow [2021-04-29 05:35:15,301 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.0) internal successors, (287), 7 states have internal predecessors, (287), 0 states have call successors, (0), 0 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 05:35:15,301 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:35:15,301 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:35:15,302 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-29 05:35:15,302 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:35:15,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:35:15,303 INFO L82 PathProgramCache]: Analyzing trace with hash 2077077542, now seen corresponding path program 8 times [2021-04-29 05:35:15,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:35:15,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094969683] [2021-04-29 05:35:15,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:35:15,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:35:15,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:15,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:35:15,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:15,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:35:15,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:15,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:35:15,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:15,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:35:15,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:15,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 05:35:15,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:15,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:35:15,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:35:15,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094969683] [2021-04-29 05:35:15,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:35:15,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-29 05:35:15,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311142002] [2021-04-29 05:35:15,359 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-29 05:35:15,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:35:15,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-29 05:35:15,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-04-29 05:35:15,361 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 56 [2021-04-29 05:35:15,362 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 83 transitions, 529 flow. Second operand has 7 states, 7 states have (on average 36.285714285714285) internal successors, (254), 7 states have internal predecessors, (254), 0 states have call successors, (0), 0 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 05:35:15,362 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:35:15,362 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 56 [2021-04-29 05:35:15,362 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:35:15,626 INFO L129 PetriNetUnfolder]: 285/946 cut-off events. [2021-04-29 05:35:15,626 INFO L130 PetriNetUnfolder]: For 1239/1453 co-relation queries the response was YES. [2021-04-29 05:35:15,632 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3316 conditions, 946 events. 285/946 cut-off events. For 1239/1453 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 7778 event pairs, 3 based on Foata normal form. 40/703 useless extension candidates. Maximal degree in co-relation 3244. Up to 316 conditions per place. [2021-04-29 05:35:15,637 INFO L132 encePairwiseOnDemand]: 44/56 looper letters, 23 selfloop transitions, 32 changer transitions 15/113 dead transitions. [2021-04-29 05:35:15,638 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 113 transitions, 833 flow [2021-04-29 05:35:15,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-29 05:35:15,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-29 05:35:15,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 364 transitions. [2021-04-29 05:35:15,640 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7222222222222222 [2021-04-29 05:35:15,640 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 364 transitions. [2021-04-29 05:35:15,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 364 transitions. [2021-04-29 05:35:15,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:35:15,641 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 364 transitions. [2021-04-29 05:35:15,642 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 40.44444444444444) internal successors, (364), 9 states have internal predecessors, (364), 0 states have call successors, (0), 0 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 05:35:15,644 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 56.0) internal successors, (560), 10 states have internal predecessors, (560), 0 states have call successors, (0), 0 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 05:35:15,644 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 56.0) internal successors, (560), 10 states have internal predecessors, (560), 0 states have call successors, (0), 0 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 05:35:15,645 INFO L185 Difference]: Start difference. First operand has 83 places, 83 transitions, 529 flow. Second operand 9 states and 364 transitions. [2021-04-29 05:35:15,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 113 transitions, 833 flow [2021-04-29 05:35:15,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 113 transitions, 799 flow, removed 4 selfloop flow, removed 9 redundant places. [2021-04-29 05:35:15,668 INFO L241 Difference]: Finished difference. Result has 86 places, 94 transitions, 696 flow [2021-04-29 05:35:15,668 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=479, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=696, PETRI_PLACES=86, PETRI_TRANSITIONS=94} [2021-04-29 05:35:15,669 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 39 predicate places. [2021-04-29 05:35:15,669 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:35:15,669 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 94 transitions, 696 flow [2021-04-29 05:35:15,670 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 94 transitions, 696 flow [2021-04-29 05:35:15,671 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 94 transitions, 696 flow [2021-04-29 05:35:15,759 INFO L129 PetriNetUnfolder]: 236/717 cut-off events. [2021-04-29 05:35:15,759 INFO L130 PetriNetUnfolder]: For 1182/1248 co-relation queries the response was YES. [2021-04-29 05:35:15,764 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2722 conditions, 717 events. 236/717 cut-off events. For 1182/1248 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 5341 event pairs, 3 based on Foata normal form. 21/519 useless extension candidates. Maximal degree in co-relation 2684. Up to 267 conditions per place. [2021-04-29 05:35:15,775 INFO L146 LiptonReduction]: Number of co-enabled transitions 724 [2021-04-29 05:35:15,884 INFO L158 LiptonReduction]: Checked pairs total: 136 [2021-04-29 05:35:15,884 INFO L160 LiptonReduction]: Total number of compositions: 2 [2021-04-29 05:35:15,885 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 216 [2021-04-29 05:35:15,885 INFO L480 AbstractCegarLoop]: Abstraction has has 84 places, 94 transitions, 696 flow [2021-04-29 05:35:15,886 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 36.285714285714285) internal successors, (254), 7 states have internal predecessors, (254), 0 states have call successors, (0), 0 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 05:35:15,886 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:35:15,886 INFO L263 CegarLoopForPetriNet]: trace histogram [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 05:35:15,886 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-29 05:35:15,886 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:35:15,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:35:15,887 INFO L82 PathProgramCache]: Analyzing trace with hash 819834244, now seen corresponding path program 9 times [2021-04-29 05:35:15,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:35:15,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485622335] [2021-04-29 05:35:15,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:35:15,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:35:15,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:15,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:35:15,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:15,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:35:15,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:15,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:35:15,901 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 05:35:15,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485622335] [2021-04-29 05:35:15,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:35:15,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 05:35:15,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078969095] [2021-04-29 05:35:15,902 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 05:35:15,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:35:15,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 05:35:15,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 05:35:15,903 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 58 [2021-04-29 05:35:15,904 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 94 transitions, 696 flow. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 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 05:35:15,904 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:35:15,904 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 58 [2021-04-29 05:35:15,904 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:35:16,014 INFO L129 PetriNetUnfolder]: 169/660 cut-off events. [2021-04-29 05:35:16,015 INFO L130 PetriNetUnfolder]: For 1170/1289 co-relation queries the response was YES. [2021-04-29 05:35:16,020 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2426 conditions, 660 events. 169/660 cut-off events. For 1170/1289 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 5381 event pairs, 7 based on Foata normal form. 39/522 useless extension candidates. Maximal degree in co-relation 2386. Up to 257 conditions per place. [2021-04-29 05:35:16,024 INFO L132 encePairwiseOnDemand]: 54/58 looper letters, 2 selfloop transitions, 7 changer transitions 3/90 dead transitions. [2021-04-29 05:35:16,024 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 90 transitions, 678 flow [2021-04-29 05:35:16,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 05:35:16,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 05:35:16,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 147 transitions. [2021-04-29 05:35:16,026 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8448275862068966 [2021-04-29 05:35:16,026 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 147 transitions. [2021-04-29 05:35:16,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 147 transitions. [2021-04-29 05:35:16,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:35:16,027 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 147 transitions. [2021-04-29 05:35:16,028 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 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 05:35:16,029 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 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 05:35:16,029 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 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 05:35:16,029 INFO L185 Difference]: Start difference. First operand has 84 places, 94 transitions, 696 flow. Second operand 3 states and 147 transitions. [2021-04-29 05:35:16,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 90 transitions, 678 flow [2021-04-29 05:35:16,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 90 transitions, 633 flow, removed 3 selfloop flow, removed 6 redundant places. [2021-04-29 05:35:16,056 INFO L241 Difference]: Finished difference. Result has 81 places, 87 transitions, 609 flow [2021-04-29 05:35:16,057 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=615, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=609, PETRI_PLACES=81, PETRI_TRANSITIONS=87} [2021-04-29 05:35:16,057 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 34 predicate places. [2021-04-29 05:35:16,057 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:35:16,057 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 87 transitions, 609 flow [2021-04-29 05:35:16,058 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 87 transitions, 609 flow [2021-04-29 05:35:16,059 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 87 transitions, 609 flow [2021-04-29 05:35:16,124 INFO L129 PetriNetUnfolder]: 142/572 cut-off events. [2021-04-29 05:35:16,125 INFO L130 PetriNetUnfolder]: For 623/677 co-relation queries the response was YES. [2021-04-29 05:35:16,128 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1981 conditions, 572 events. 142/572 cut-off events. For 623/677 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 4401 event pairs, 1 based on Foata normal form. 11/440 useless extension candidates. Maximal degree in co-relation 1862. Up to 219 conditions per place. [2021-04-29 05:35:16,136 INFO L146 LiptonReduction]: Number of co-enabled transitions 580 [2021-04-29 05:35:16,177 INFO L158 LiptonReduction]: Checked pairs total: 4 [2021-04-29 05:35:16,177 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-29 05:35:16,178 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 121 [2021-04-29 05:35:16,179 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 88 transitions, 611 flow [2021-04-29 05:35:16,179 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 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 05:35:16,179 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:35:16,179 INFO L263 CegarLoopForPetriNet]: trace histogram [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 05:35:16,180 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-29 05:35:16,180 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:35:16,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:35:16,180 INFO L82 PathProgramCache]: Analyzing trace with hash 20375225, now seen corresponding path program 1 times [2021-04-29 05:35:16,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:35:16,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164007451] [2021-04-29 05:35:16,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:35:16,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:35:16,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:16,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:35:16,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:16,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:35:16,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:16,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:35:16,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:16,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:35:16,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:16,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:35:16,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:16,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:35:16,224 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 05:35:16,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164007451] [2021-04-29 05:35:16,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:35:16,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-29 05:35:16,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857637137] [2021-04-29 05:35:16,225 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-29 05:35:16,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:35:16,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-29 05:35:16,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-04-29 05:35:16,227 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 59 [2021-04-29 05:35:16,228 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 88 transitions, 611 flow. Second operand has 7 states, 7 states have (on average 44.0) internal successors, (308), 7 states have internal predecessors, (308), 0 states have call successors, (0), 0 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 05:35:16,228 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:35:16,228 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 59 [2021-04-29 05:35:16,228 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:35:16,421 INFO L129 PetriNetUnfolder]: 180/716 cut-off events. [2021-04-29 05:35:16,421 INFO L130 PetriNetUnfolder]: For 1220/1354 co-relation queries the response was YES. [2021-04-29 05:35:16,425 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2748 conditions, 716 events. 180/716 cut-off events. For 1220/1354 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 5970 event pairs, 3 based on Foata normal form. 31/564 useless extension candidates. Maximal degree in co-relation 2620. Up to 264 conditions per place. [2021-04-29 05:35:16,429 INFO L132 encePairwiseOnDemand]: 52/59 looper letters, 25 selfloop transitions, 19 changer transitions 20/103 dead transitions. [2021-04-29 05:35:16,429 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 103 transitions, 824 flow [2021-04-29 05:35:16,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-29 05:35:16,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-29 05:35:16,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 415 transitions. [2021-04-29 05:35:16,432 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7815442561205274 [2021-04-29 05:35:16,432 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 415 transitions. [2021-04-29 05:35:16,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 415 transitions. [2021-04-29 05:35:16,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:35:16,433 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 415 transitions. [2021-04-29 05:35:16,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 46.111111111111114) internal successors, (415), 9 states have internal predecessors, (415), 0 states have call successors, (0), 0 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 05:35:16,436 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 59.0) internal successors, (590), 10 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:35:16,436 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 59.0) internal successors, (590), 10 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:35:16,436 INFO L185 Difference]: Start difference. First operand has 82 places, 88 transitions, 611 flow. Second operand 9 states and 415 transitions. [2021-04-29 05:35:16,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 103 transitions, 824 flow [2021-04-29 05:35:16,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 103 transitions, 795 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-29 05:35:16,451 INFO L241 Difference]: Finished difference. Result has 90 places, 77 transitions, 577 flow [2021-04-29 05:35:16,451 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=582, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=577, PETRI_PLACES=90, PETRI_TRANSITIONS=77} [2021-04-29 05:35:16,452 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 43 predicate places. [2021-04-29 05:35:16,452 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:35:16,452 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 77 transitions, 577 flow [2021-04-29 05:35:16,452 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 77 transitions, 577 flow [2021-04-29 05:35:16,453 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 77 transitions, 577 flow [2021-04-29 05:35:16,502 INFO L129 PetriNetUnfolder]: 75/447 cut-off events. [2021-04-29 05:35:16,502 INFO L130 PetriNetUnfolder]: For 622/663 co-relation queries the response was YES. [2021-04-29 05:35:16,504 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1481 conditions, 447 events. 75/447 cut-off events. For 622/663 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3491 event pairs, 1 based on Foata normal form. 7/393 useless extension candidates. Maximal degree in co-relation 1431. Up to 139 conditions per place. [2021-04-29 05:35:16,510 INFO L146 LiptonReduction]: Number of co-enabled transitions 466 [2021-04-29 05:35:16,550 INFO L158 LiptonReduction]: Checked pairs total: 10 [2021-04-29 05:35:16,550 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-29 05:35:16,550 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 98 [2021-04-29 05:35:16,551 INFO L480 AbstractCegarLoop]: Abstraction has has 86 places, 78 transitions, 583 flow [2021-04-29 05:35:16,552 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 44.0) internal successors, (308), 7 states have internal predecessors, (308), 0 states have call successors, (0), 0 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 05:35:16,552 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:35:16,552 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:35:16,552 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-29 05:35:16,552 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:35:16,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:35:16,553 INFO L82 PathProgramCache]: Analyzing trace with hash 163422543, now seen corresponding path program 1 times [2021-04-29 05:35:16,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:35:16,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729042738] [2021-04-29 05:35:16,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:35:16,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:35:16,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:16,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:35:16,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:16,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:35:16,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:16,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:35:16,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:16,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:35:16,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:16,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:35:16,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:16,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:35:16,595 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 05:35:16,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729042738] [2021-04-29 05:35:16,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:35:16,596 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-29 05:35:16,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870386872] [2021-04-29 05:35:16,596 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-29 05:35:16,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:35:16,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-29 05:35:16,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-04-29 05:35:16,598 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 60 [2021-04-29 05:35:16,598 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 78 transitions, 583 flow. Second operand has 7 states, 7 states have (on average 45.0) internal successors, (315), 7 states have internal predecessors, (315), 0 states have call successors, (0), 0 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 05:35:16,598 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:35:16,598 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 60 [2021-04-29 05:35:16,598 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:35:16,749 INFO L129 PetriNetUnfolder]: 89/481 cut-off events. [2021-04-29 05:35:16,749 INFO L130 PetriNetUnfolder]: For 951/1080 co-relation queries the response was YES. [2021-04-29 05:35:16,752 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1764 conditions, 481 events. 89/481 cut-off events. For 951/1080 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 3892 event pairs, 9 based on Foata normal form. 35/437 useless extension candidates. Maximal degree in co-relation 1701. Up to 148 conditions per place. [2021-04-29 05:35:16,754 INFO L132 encePairwiseOnDemand]: 53/60 looper letters, 25 selfloop transitions, 18 changer transitions 1/83 dead transitions. [2021-04-29 05:35:16,754 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 83 transitions, 712 flow [2021-04-29 05:35:16,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-29 05:35:16,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-04-29 05:35:16,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 374 transitions. [2021-04-29 05:35:16,756 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7791666666666667 [2021-04-29 05:35:16,757 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 374 transitions. [2021-04-29 05:35:16,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 374 transitions. [2021-04-29 05:35:16,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:35:16,757 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 374 transitions. [2021-04-29 05:35:16,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 46.75) internal successors, (374), 8 states have internal predecessors, (374), 0 states have call successors, (0), 0 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 05:35:16,760 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 60.0) internal successors, (540), 9 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:35:16,760 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 60.0) internal successors, (540), 9 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:35:16,760 INFO L185 Difference]: Start difference. First operand has 86 places, 78 transitions, 583 flow. Second operand 8 states and 374 transitions. [2021-04-29 05:35:16,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 83 transitions, 712 flow [2021-04-29 05:35:16,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 83 transitions, 647 flow, removed 13 selfloop flow, removed 9 redundant places. [2021-04-29 05:35:16,774 INFO L241 Difference]: Finished difference. Result has 87 places, 81 transitions, 608 flow [2021-04-29 05:35:16,774 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=608, PETRI_PLACES=87, PETRI_TRANSITIONS=81} [2021-04-29 05:35:16,775 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 40 predicate places. [2021-04-29 05:35:16,775 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:35:16,775 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 81 transitions, 608 flow [2021-04-29 05:35:16,775 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 81 transitions, 608 flow [2021-04-29 05:35:16,776 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 81 transitions, 608 flow [2021-04-29 05:35:16,825 INFO L129 PetriNetUnfolder]: 85/489 cut-off events. [2021-04-29 05:35:16,825 INFO L130 PetriNetUnfolder]: For 736/791 co-relation queries the response was YES. [2021-04-29 05:35:16,827 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1620 conditions, 489 events. 85/489 cut-off events. For 736/791 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 3969 event pairs, 1 based on Foata normal form. 7/431 useless extension candidates. Maximal degree in co-relation 1482. Up to 148 conditions per place. [2021-04-29 05:35:16,833 INFO L146 LiptonReduction]: Number of co-enabled transitions 494 [2021-04-29 05:35:16,872 INFO L158 LiptonReduction]: Checked pairs total: 10 [2021-04-29 05:35:16,872 INFO L160 LiptonReduction]: Total number of compositions: 2 [2021-04-29 05:35:16,872 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 97 [2021-04-29 05:35:16,873 INFO L480 AbstractCegarLoop]: Abstraction has has 87 places, 82 transitions, 612 flow [2021-04-29 05:35:16,873 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 45.0) internal successors, (315), 7 states have internal predecessors, (315), 0 states have call successors, (0), 0 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 05:35:16,873 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:35:16,874 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:35:16,874 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-29 05:35:16,874 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:35:16,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:35:16,874 INFO L82 PathProgramCache]: Analyzing trace with hash -1475732353, now seen corresponding path program 1 times [2021-04-29 05:35:16,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:35:16,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612319114] [2021-04-29 05:35:16,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:35:16,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:35:16,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:16,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:35:16,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:16,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:35:16,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:16,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:35:16,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:16,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:35:16,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:16,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:35:16,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:16,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:35:16,912 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 05:35:16,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612319114] [2021-04-29 05:35:16,913 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:35:16,913 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-29 05:35:16,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644423803] [2021-04-29 05:35:16,913 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-29 05:35:16,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:35:16,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-29 05:35:16,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-04-29 05:35:16,915 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 62 [2021-04-29 05:35:16,915 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 82 transitions, 612 flow. Second operand has 7 states, 7 states have (on average 45.0) internal successors, (315), 7 states have internal predecessors, (315), 0 states have call successors, (0), 0 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 05:35:16,916 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:35:16,916 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 62 [2021-04-29 05:35:16,916 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:35:17,063 INFO L129 PetriNetUnfolder]: 91/515 cut-off events. [2021-04-29 05:35:17,064 INFO L130 PetriNetUnfolder]: For 967/1125 co-relation queries the response was YES. [2021-04-29 05:35:17,066 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1864 conditions, 515 events. 91/515 cut-off events. For 967/1125 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 4362 event pairs, 11 based on Foata normal form. 47/474 useless extension candidates. Maximal degree in co-relation 1713. Up to 157 conditions per place. [2021-04-29 05:35:17,068 INFO L132 encePairwiseOnDemand]: 55/62 looper letters, 24 selfloop transitions, 21 changer transitions 1/85 dead transitions. [2021-04-29 05:35:17,069 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 85 transitions, 725 flow [2021-04-29 05:35:17,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-29 05:35:17,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-29 05:35:17,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 421 transitions. [2021-04-29 05:35:17,071 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7544802867383512 [2021-04-29 05:35:17,071 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 421 transitions. [2021-04-29 05:35:17,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 421 transitions. [2021-04-29 05:35:17,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:35:17,072 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 421 transitions. [2021-04-29 05:35:17,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 46.77777777777778) internal successors, (421), 9 states have internal predecessors, (421), 0 states have call successors, (0), 0 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 05:35:17,074 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 62.0) internal successors, (620), 10 states have internal predecessors, (620), 0 states have call successors, (0), 0 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 05:35:17,075 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 62.0) internal successors, (620), 10 states have internal predecessors, (620), 0 states have call successors, (0), 0 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 05:35:17,075 INFO L185 Difference]: Start difference. First operand has 87 places, 82 transitions, 612 flow. Second operand 9 states and 421 transitions. [2021-04-29 05:35:17,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 85 transitions, 725 flow [2021-04-29 05:35:17,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 85 transitions, 673 flow, removed 10 selfloop flow, removed 5 redundant places. [2021-04-29 05:35:17,088 INFO L241 Difference]: Finished difference. Result has 91 places, 82 transitions, 613 flow [2021-04-29 05:35:17,088 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=560, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=613, PETRI_PLACES=91, PETRI_TRANSITIONS=82} [2021-04-29 05:35:17,089 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 44 predicate places. [2021-04-29 05:35:17,089 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:35:17,089 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 82 transitions, 613 flow [2021-04-29 05:35:17,089 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 82 transitions, 613 flow [2021-04-29 05:35:17,090 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 90 places, 82 transitions, 613 flow [2021-04-29 05:35:17,140 INFO L129 PetriNetUnfolder]: 85/516 cut-off events. [2021-04-29 05:35:17,141 INFO L130 PetriNetUnfolder]: For 728/784 co-relation queries the response was YES. [2021-04-29 05:35:17,143 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1690 conditions, 516 events. 85/516 cut-off events. For 728/784 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 4337 event pairs, 1 based on Foata normal form. 5/453 useless extension candidates. Maximal degree in co-relation 1542. Up to 157 conditions per place. [2021-04-29 05:35:17,148 INFO L146 LiptonReduction]: Number of co-enabled transitions 502 [2021-04-29 05:35:17,155 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:35:17,155 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:35:17,155 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 66 [2021-04-29 05:35:17,156 INFO L480 AbstractCegarLoop]: Abstraction has has 90 places, 82 transitions, 613 flow [2021-04-29 05:35:17,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 45.0) internal successors, (315), 7 states have internal predecessors, (315), 0 states have call successors, (0), 0 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 05:35:17,157 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:35:17,157 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:35:17,157 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-04-29 05:35:17,157 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:35:17,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:35:17,158 INFO L82 PathProgramCache]: Analyzing trace with hash 100699805, now seen corresponding path program 2 times [2021-04-29 05:35:17,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:35:17,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628716020] [2021-04-29 05:35:17,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:35:17,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:35:17,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:17,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:35:17,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:17,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:35:17,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:17,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:35:17,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:17,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:35:17,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:17,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:35:17,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:17,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:35:17,195 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 05:35:17,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628716020] [2021-04-29 05:35:17,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:35:17,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-29 05:35:17,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271496794] [2021-04-29 05:35:17,196 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-29 05:35:17,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:35:17,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-29 05:35:17,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-04-29 05:35:17,197 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 62 [2021-04-29 05:35:17,198 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 82 transitions, 613 flow. Second operand has 7 states, 7 states have (on average 45.0) internal successors, (315), 7 states have internal predecessors, (315), 0 states have call successors, (0), 0 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 05:35:17,198 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:35:17,198 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 62 [2021-04-29 05:35:17,198 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:35:17,339 INFO L129 PetriNetUnfolder]: 89/504 cut-off events. [2021-04-29 05:35:17,339 INFO L130 PetriNetUnfolder]: For 865/1019 co-relation queries the response was YES. [2021-04-29 05:35:17,342 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1812 conditions, 504 events. 89/504 cut-off events. For 865/1019 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 4226 event pairs, 9 based on Foata normal form. 43/466 useless extension candidates. Maximal degree in co-relation 1656. Up to 157 conditions per place. [2021-04-29 05:35:17,344 INFO L132 encePairwiseOnDemand]: 55/62 looper letters, 23 selfloop transitions, 12 changer transitions 21/83 dead transitions. [2021-04-29 05:35:17,344 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 83 transitions, 706 flow [2021-04-29 05:35:17,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-04-29 05:35:17,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-04-29 05:35:17,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 465 transitions. [2021-04-29 05:35:17,346 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.75 [2021-04-29 05:35:17,346 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 465 transitions. [2021-04-29 05:35:17,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 465 transitions. [2021-04-29 05:35:17,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:35:17,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 465 transitions. [2021-04-29 05:35:17,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 46.5) internal successors, (465), 10 states have internal predecessors, (465), 0 states have call successors, (0), 0 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 05:35:17,350 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 62.0) internal successors, (682), 11 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:35:17,351 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 62.0) internal successors, (682), 11 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:35:17,351 INFO L185 Difference]: Start difference. First operand has 90 places, 82 transitions, 613 flow. Second operand 10 states and 465 transitions. [2021-04-29 05:35:17,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 83 transitions, 706 flow [2021-04-29 05:35:17,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 83 transitions, 593 flow, removed 16 selfloop flow, removed 13 redundant places. [2021-04-29 05:35:17,362 INFO L241 Difference]: Finished difference. Result has 87 places, 61 transitions, 413 flow [2021-04-29 05:35:17,362 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=501, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=413, PETRI_PLACES=87, PETRI_TRANSITIONS=61} [2021-04-29 05:35:17,362 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 40 predicate places. [2021-04-29 05:35:17,363 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:35:17,363 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 61 transitions, 413 flow [2021-04-29 05:35:17,363 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 61 transitions, 413 flow [2021-04-29 05:35:17,364 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 76 places, 61 transitions, 413 flow [2021-04-29 05:35:17,391 INFO L129 PetriNetUnfolder]: 63/334 cut-off events. [2021-04-29 05:35:17,392 INFO L130 PetriNetUnfolder]: For 281/304 co-relation queries the response was YES. [2021-04-29 05:35:17,393 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1048 conditions, 334 events. 63/334 cut-off events. For 281/304 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 2498 event pairs, 0 based on Foata normal form. 2/281 useless extension candidates. Maximal degree in co-relation 993. Up to 113 conditions per place. [2021-04-29 05:35:17,397 INFO L146 LiptonReduction]: Number of co-enabled transitions 290 [2021-04-29 05:35:17,493 INFO L158 LiptonReduction]: Checked pairs total: 20 [2021-04-29 05:35:17,493 INFO L160 LiptonReduction]: Total number of compositions: 5 [2021-04-29 05:35:17,494 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 131 [2021-04-29 05:35:17,495 INFO L480 AbstractCegarLoop]: Abstraction has has 80 places, 65 transitions, 431 flow [2021-04-29 05:35:17,495 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 45.0) internal successors, (315), 7 states have internal predecessors, (315), 0 states have call successors, (0), 0 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 05:35:17,495 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:35:17,495 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:35:17,495 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-04-29 05:35:17,495 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:35:17,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:35:17,496 INFO L82 PathProgramCache]: Analyzing trace with hash -1467351779, now seen corresponding path program 1 times [2021-04-29 05:35:17,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:35:17,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539657922] [2021-04-29 05:35:17,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:35:17,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:35:17,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:17,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:35:17,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:17,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:35:17,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:17,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:35:17,511 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 05:35:17,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539657922] [2021-04-29 05:35:17,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:35:17,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 05:35:17,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754322192] [2021-04-29 05:35:17,512 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 05:35:17,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:35:17,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 05:35:17,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 05:35:17,513 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 67 [2021-04-29 05:35:17,514 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 65 transitions, 431 flow. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 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 05:35:17,514 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:35:17,514 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 67 [2021-04-29 05:35:17,514 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:35:17,542 INFO L129 PetriNetUnfolder]: 17/208 cut-off events. [2021-04-29 05:35:17,542 INFO L130 PetriNetUnfolder]: For 243/303 co-relation queries the response was YES. [2021-04-29 05:35:17,543 INFO L84 FinitePrefix]: Finished finitePrefix Result has 651 conditions, 208 events. 17/208 cut-off events. For 243/303 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1476 event pairs, 0 based on Foata normal form. 2/168 useless extension candidates. Maximal degree in co-relation 619. Up to 70 conditions per place. [2021-04-29 05:35:17,544 INFO L132 encePairwiseOnDemand]: 64/67 looper letters, 3 selfloop transitions, 2 changer transitions 7/62 dead transitions. [2021-04-29 05:35:17,544 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 62 transitions, 424 flow [2021-04-29 05:35:17,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 05:35:17,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 05:35:17,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 160 transitions. [2021-04-29 05:35:17,546 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7960199004975125 [2021-04-29 05:35:17,546 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 160 transitions. [2021-04-29 05:35:17,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 160 transitions. [2021-04-29 05:35:17,546 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:35:17,546 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 160 transitions. [2021-04-29 05:35:17,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 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 05:35:17,547 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 0 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 05:35:17,548 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 0 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 05:35:17,548 INFO L185 Difference]: Start difference. First operand has 80 places, 65 transitions, 431 flow. Second operand 3 states and 160 transitions. [2021-04-29 05:35:17,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 62 transitions, 424 flow [2021-04-29 05:35:17,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 62 transitions, 340 flow, removed 6 selfloop flow, removed 18 redundant places. [2021-04-29 05:35:17,553 INFO L241 Difference]: Finished difference. Result has 64 places, 55 transitions, 297 flow [2021-04-29 05:35:17,553 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=297, PETRI_PLACES=64, PETRI_TRANSITIONS=55} [2021-04-29 05:35:17,554 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 17 predicate places. [2021-04-29 05:35:17,568 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:35:17,569 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 55 transitions, 297 flow [2021-04-29 05:35:17,569 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 55 transitions, 297 flow [2021-04-29 05:35:17,569 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 55 transitions, 297 flow [2021-04-29 05:35:17,585 INFO L129 PetriNetUnfolder]: 13/193 cut-off events. [2021-04-29 05:35:17,585 INFO L130 PetriNetUnfolder]: For 52/66 co-relation queries the response was YES. [2021-04-29 05:35:17,586 INFO L84 FinitePrefix]: Finished finitePrefix Result has 473 conditions, 193 events. 13/193 cut-off events. For 52/66 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1408 event pairs, 0 based on Foata normal form. 0/167 useless extension candidates. Maximal degree in co-relation 459. Up to 65 conditions per place. [2021-04-29 05:35:17,588 INFO L146 LiptonReduction]: Number of co-enabled transitions 196 [2021-04-29 05:35:17,610 INFO L158 LiptonReduction]: Checked pairs total: 3 [2021-04-29 05:35:17,610 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-29 05:35:17,611 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 43 [2021-04-29 05:35:17,612 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 56 transitions, 301 flow [2021-04-29 05:35:17,612 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 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 05:35:17,612 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:35:17,612 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:35:17,612 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-04-29 05:35:17,612 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:35:17,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:35:17,613 INFO L82 PathProgramCache]: Analyzing trace with hash -301092816, now seen corresponding path program 1 times [2021-04-29 05:35:17,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:35:17,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42134793] [2021-04-29 05:35:17,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:35:17,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:35:17,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:17,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:35:17,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:17,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:35:17,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:17,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:35:17,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:17,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:35:17,660 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-04-29 05:35:17,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 05:35:17,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:17,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:35:17,672 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 05:35:17,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42134793] [2021-04-29 05:35:17,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:35:17,672 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-29 05:35:17,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588054233] [2021-04-29 05:35:17,673 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-29 05:35:17,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:35:17,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-29 05:35:17,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-04-29 05:35:17,674 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 68 [2021-04-29 05:35:17,675 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 56 transitions, 301 flow. Second operand has 7 states, 7 states have (on average 42.142857142857146) internal successors, (295), 7 states have internal predecessors, (295), 0 states have call successors, (0), 0 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 05:35:17,675 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:35:17,675 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 68 [2021-04-29 05:35:17,675 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:35:17,810 INFO L129 PetriNetUnfolder]: 60/342 cut-off events. [2021-04-29 05:35:17,810 INFO L130 PetriNetUnfolder]: For 312/538 co-relation queries the response was YES. [2021-04-29 05:35:17,812 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1040 conditions, 342 events. 60/342 cut-off events. For 312/538 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 2526 event pairs, 0 based on Foata normal form. 25/303 useless extension candidates. Maximal degree in co-relation 950. Up to 139 conditions per place. [2021-04-29 05:35:17,813 INFO L132 encePairwiseOnDemand]: 56/68 looper letters, 10 selfloop transitions, 13 changer transitions 2/65 dead transitions. [2021-04-29 05:35:17,813 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 65 transitions, 395 flow [2021-04-29 05:35:17,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-29 05:35:17,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-04-29 05:35:17,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 351 transitions. [2021-04-29 05:35:17,815 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6452205882352942 [2021-04-29 05:35:17,815 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 351 transitions. [2021-04-29 05:35:17,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 351 transitions. [2021-04-29 05:35:17,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:35:17,816 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 351 transitions. [2021-04-29 05:35:17,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 43.875) internal successors, (351), 8 states have internal predecessors, (351), 0 states have call successors, (0), 0 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 05:35:17,818 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 68.0) internal successors, (612), 9 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:35:17,818 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 68.0) internal successors, (612), 9 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:35:17,819 INFO L185 Difference]: Start difference. First operand has 61 places, 56 transitions, 301 flow. Second operand 8 states and 351 transitions. [2021-04-29 05:35:17,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 65 transitions, 395 flow [2021-04-29 05:35:17,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 65 transitions, 376 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-04-29 05:35:17,823 INFO L241 Difference]: Finished difference. Result has 64 places, 61 transitions, 364 flow [2021-04-29 05:35:17,823 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=287, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=364, PETRI_PLACES=64, PETRI_TRANSITIONS=61} [2021-04-29 05:35:17,824 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 17 predicate places. [2021-04-29 05:35:17,824 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:35:17,824 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 61 transitions, 364 flow [2021-04-29 05:35:17,824 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 61 transitions, 364 flow [2021-04-29 05:35:17,825 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 61 transitions, 364 flow [2021-04-29 05:35:17,857 INFO L129 PetriNetUnfolder]: 58/321 cut-off events. [2021-04-29 05:35:17,857 INFO L130 PetriNetUnfolder]: For 310/414 co-relation queries the response was YES. [2021-04-29 05:35:17,858 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1037 conditions, 321 events. 58/321 cut-off events. For 310/414 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 2444 event pairs, 0 based on Foata normal form. 16/285 useless extension candidates. Maximal degree in co-relation 957. Up to 109 conditions per place. [2021-04-29 05:35:17,862 INFO L146 LiptonReduction]: Number of co-enabled transitions 292 [2021-04-29 05:35:17,893 INFO L158 LiptonReduction]: Checked pairs total: 9 [2021-04-29 05:35:17,893 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-29 05:35:17,893 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 69 [2021-04-29 05:35:17,895 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 62 transitions, 372 flow [2021-04-29 05:35:17,895 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 42.142857142857146) internal successors, (295), 7 states have internal predecessors, (295), 0 states have call successors, (0), 0 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 05:35:17,895 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:35:17,895 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:35:17,895 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-04-29 05:35:17,895 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:35:17,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:35:17,896 INFO L82 PathProgramCache]: Analyzing trace with hash -752036408, now seen corresponding path program 2 times [2021-04-29 05:35:17,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:35:17,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293676749] [2021-04-29 05:35:17,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:35:17,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:35:17,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:17,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:35:17,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:17,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:35:17,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:17,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:35:17,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:17,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:35:17,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:17,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 05:35:17,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:17,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:35:17,955 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 05:35:17,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293676749] [2021-04-29 05:35:17,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:35:17,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-29 05:35:17,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508829942] [2021-04-29 05:35:17,956 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-29 05:35:17,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:35:17,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-29 05:35:17,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-04-29 05:35:17,957 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 69 [2021-04-29 05:35:17,958 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 62 transitions, 372 flow. Second operand has 7 states, 7 states have (on average 42.142857142857146) internal successors, (295), 7 states have internal predecessors, (295), 0 states have call successors, (0), 0 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 05:35:17,958 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:35:17,958 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 69 [2021-04-29 05:35:17,958 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:35:18,059 INFO L129 PetriNetUnfolder]: 14/231 cut-off events. [2021-04-29 05:35:18,059 INFO L130 PetriNetUnfolder]: For 345/557 co-relation queries the response was YES. [2021-04-29 05:35:18,060 INFO L84 FinitePrefix]: Finished finitePrefix Result has 737 conditions, 231 events. 14/231 cut-off events. For 345/557 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1696 event pairs, 0 based on Foata normal form. 3/200 useless extension candidates. Maximal degree in co-relation 657. Up to 96 conditions per place. [2021-04-29 05:35:18,061 INFO L132 encePairwiseOnDemand]: 60/69 looper letters, 9 selfloop transitions, 4 changer transitions 8/60 dead transitions. [2021-04-29 05:35:18,061 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 60 transitions, 377 flow [2021-04-29 05:35:18,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-29 05:35:18,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-04-29 05:35:18,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 347 transitions. [2021-04-29 05:35:18,063 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6286231884057971 [2021-04-29 05:35:18,063 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 347 transitions. [2021-04-29 05:35:18,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 347 transitions. [2021-04-29 05:35:18,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:35:18,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 347 transitions. [2021-04-29 05:35:18,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 43.375) internal successors, (347), 8 states have internal predecessors, (347), 0 states have call successors, (0), 0 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 05:35:18,065 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 69.0) internal successors, (621), 9 states have internal predecessors, (621), 0 states have call successors, (0), 0 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 05:35:18,066 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 69.0) internal successors, (621), 9 states have internal predecessors, (621), 0 states have call successors, (0), 0 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 05:35:18,066 INFO L185 Difference]: Start difference. First operand has 64 places, 62 transitions, 372 flow. Second operand 8 states and 347 transitions. [2021-04-29 05:35:18,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 60 transitions, 377 flow [2021-04-29 05:35:18,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 60 transitions, 346 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-04-29 05:35:18,071 INFO L241 Difference]: Finished difference. Result has 66 places, 51 transitions, 279 flow [2021-04-29 05:35:18,071 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=279, PETRI_PLACES=66, PETRI_TRANSITIONS=51} [2021-04-29 05:35:18,071 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 19 predicate places. [2021-04-29 05:35:18,071 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:35:18,071 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 51 transitions, 279 flow [2021-04-29 05:35:18,072 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 51 transitions, 279 flow [2021-04-29 05:35:18,072 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 57 places, 51 transitions, 279 flow [2021-04-29 05:35:18,085 INFO L129 PetriNetUnfolder]: 12/189 cut-off events. [2021-04-29 05:35:18,086 INFO L130 PetriNetUnfolder]: For 53/73 co-relation queries the response was YES. [2021-04-29 05:35:18,086 INFO L84 FinitePrefix]: Finished finitePrefix Result has 464 conditions, 189 events. 12/189 cut-off events. For 53/73 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1387 event pairs, 0 based on Foata normal form. 0/162 useless extension candidates. Maximal degree in co-relation 441. Up to 65 conditions per place. [2021-04-29 05:35:18,088 INFO L146 LiptonReduction]: Number of co-enabled transitions 164 [2021-04-29 05:35:18,128 INFO L158 LiptonReduction]: Checked pairs total: 8 [2021-04-29 05:35:18,128 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-29 05:35:18,128 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 57 [2021-04-29 05:35:18,129 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 51 transitions, 283 flow [2021-04-29 05:35:18,129 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 42.142857142857146) internal successors, (295), 7 states have internal predecessors, (295), 0 states have call successors, (0), 0 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 05:35:18,129 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:35:18,129 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:35:18,130 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-04-29 05:35:18,130 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:35:18,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:35:18,130 INFO L82 PathProgramCache]: Analyzing trace with hash -302657614, now seen corresponding path program 1 times [2021-04-29 05:35:18,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:35:18,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917503600] [2021-04-29 05:35:18,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:35:18,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:35:18,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:18,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:35:18,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:18,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:35:18,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:18,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:35:18,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:18,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:35:18,170 INFO L142 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size [2021-04-29 05:35:18,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:35:18,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:35:18,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:35:18,180 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 05:35:18,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917503600] [2021-04-29 05:35:18,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:35:18,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-29 05:35:18,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913003852] [2021-04-29 05:35:18,181 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-29 05:35:18,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:35:18,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-29 05:35:18,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-04-29 05:35:18,182 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 70 [2021-04-29 05:35:18,183 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 51 transitions, 283 flow. Second operand has 7 states, 7 states have (on average 42.142857142857146) internal successors, (295), 7 states have internal predecessors, (295), 0 states have call successors, (0), 0 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 05:35:18,183 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:35:18,183 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 70 [2021-04-29 05:35:18,183 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:35:18,244 INFO L129 PetriNetUnfolder]: 0/20 cut-off events. [2021-04-29 05:35:18,245 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-04-29 05:35:18,245 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 20 events. 0/20 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 37 event pairs, 0 based on Foata normal form. 1/21 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-04-29 05:35:18,245 INFO L132 encePairwiseOnDemand]: 64/70 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2021-04-29 05:35:18,245 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 20 transitions, 119 flow [2021-04-29 05:35:18,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-29 05:35:18,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-29 05:35:18,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 294 transitions. [2021-04-29 05:35:18,246 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6 [2021-04-29 05:35:18,246 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 294 transitions. [2021-04-29 05:35:18,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 294 transitions. [2021-04-29 05:35:18,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:35:18,247 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 294 transitions. [2021-04-29 05:35:18,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 42.0) internal successors, (294), 7 states have internal predecessors, (294), 0 states have call successors, (0), 0 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 05:35:18,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 70.0) internal successors, (560), 8 states have internal predecessors, (560), 0 states have call successors, (0), 0 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 05:35:18,249 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 70.0) internal successors, (560), 8 states have internal predecessors, (560), 0 states have call successors, (0), 0 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 05:35:18,249 INFO L185 Difference]: Start difference. First operand has 57 places, 51 transitions, 283 flow. Second operand 7 states and 294 transitions. [2021-04-29 05:35:18,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 20 transitions, 119 flow [2021-04-29 05:35:18,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 20 transitions, 89 flow, removed 2 selfloop flow, removed 11 redundant places. [2021-04-29 05:35:18,250 INFO L241 Difference]: Finished difference. Result has 37 places, 0 transitions, 0 flow [2021-04-29 05:35:18,250 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=37, PETRI_TRANSITIONS=0} [2021-04-29 05:35:18,250 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, -10 predicate places. [2021-04-29 05:35:18,251 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:35:18,251 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 0 transitions, 0 flow [2021-04-29 05:35:18,251 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 0 transitions, 0 flow [2021-04-29 05:35:18,251 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 05:35:18,251 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 05:35:18,251 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 05:35:18,252 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-04-29 05:35:18,252 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 05:35:18,252 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:35:18,252 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:35:18,252 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-04-29 05:35:18,253 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 05:35:18,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 42.142857142857146) internal successors, (295), 7 states have internal predecessors, (295), 0 states have call successors, (0), 0 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 05:35:18,253 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-04-29 05:35:18,258 INFO L202 PluginConnector]: Adding new model lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 05:35:18 BasicIcfg [2021-04-29 05:35:18,258 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 05:35:18,259 INFO L168 Benchmark]: Toolchain (without parser) took 8280.37 ms. Allocated memory was 304.1 MB in the beginning and 448.8 MB in the end (delta: 144.7 MB). Free memory was 271.0 MB in the beginning and 292.5 MB in the end (delta: -21.5 MB). Peak memory consumption was 124.1 MB. Max. memory is 16.0 GB. [2021-04-29 05:35:18,259 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.73 ms. Allocated memory is still 304.1 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 05:35:18,259 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.65 ms. Allocated memory is still 304.1 MB. Free memory was 286.6 MB in the beginning and 285.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-04-29 05:35:18,260 INFO L168 Benchmark]: Boogie Preprocessor took 22.10 ms. Allocated memory is still 304.1 MB. Free memory was 285.0 MB in the beginning and 284.2 MB in the end (delta: 855.0 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 05:35:18,260 INFO L168 Benchmark]: RCFGBuilder took 405.22 ms. Allocated memory is still 304.1 MB. Free memory was 284.1 MB in the beginning and 279.0 MB in the end (delta: 5.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.0 GB. [2021-04-29 05:35:18,260 INFO L168 Benchmark]: TraceAbstraction took 7758.03 ms. Allocated memory was 304.1 MB in the beginning and 448.8 MB in the end (delta: 144.7 MB). Free memory was 278.6 MB in the beginning and 292.5 MB in the end (delta: -14.0 MB). Peak memory consumption was 133.4 MB. Max. memory is 16.0 GB. [2021-04-29 05:35:18,262 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 0.73 ms. Allocated memory is still 304.1 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 40.65 ms. Allocated memory is still 304.1 MB. Free memory was 286.6 MB in the beginning and 285.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 22.10 ms. Allocated memory is still 304.1 MB. Free memory was 285.0 MB in the beginning and 284.2 MB in the end (delta: 855.0 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 405.22 ms. Allocated memory is still 304.1 MB. Free memory was 284.1 MB in the beginning and 279.0 MB in the end (delta: 5.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 7758.03 ms. Allocated memory was 304.1 MB in the beginning and 448.8 MB in the end (delta: 144.7 MB). Free memory was 278.6 MB in the beginning and 292.5 MB in the end (delta: -14.0 MB). Peak memory consumption was 133.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 769.1ms, 46 PlacesBefore, 47 PlacesAfterwards, 36 TransitionsBefore, 37 TransitionsAfterwards, 412 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 8 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 15 TotalNumberOfCompositions, 1934 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 678, positive: 558, positive conditional: 558, positive unconditional: 0, negative: 120, negative conditional: 120, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 325, positive: 293, positive conditional: 0, positive unconditional: 293, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 325, positive: 293, positive conditional: 0, positive unconditional: 293, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 325, positive: 287, positive conditional: 0, positive unconditional: 287, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 38, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 257, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 227, negative conditional: 0, negative unconditional: 227, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 678, positive: 265, positive conditional: 265, positive unconditional: 0, negative: 88, negative conditional: 88, negative unconditional: 0, unknown: 325, unknown conditional: 325, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 325, Positive cache size: 293, Positive conditional cache size: 293, Positive unconditional cache size: 0, Negative cache size: 32, Negative conditional cache size: 32, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 37.6ms, 58 PlacesBefore, 44 PlacesAfterwards, 39 TransitionsBefore, 39 TransitionsAfterwards, 414 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 303 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 82, positive: 63, positive conditional: 63, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 32, positive: 32, positive conditional: 19, positive unconditional: 13, 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: 32, positive: 32, positive conditional: 19, positive unconditional: 13, 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: 32, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 82, positive: 31, positive conditional: 31, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 32, unknown conditional: 32, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 357, Positive cache size: 325, Positive conditional cache size: 325, Positive unconditional cache size: 0, Negative cache size: 32, Negative conditional cache size: 32, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 85.0ms, 56 PlacesBefore, 56 PlacesAfterwards, 69 TransitionsBefore, 69 TransitionsAfterwards, 646 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 90 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 33, positive: 29, positive conditional: 29, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18, positive: 16, positive conditional: 12, positive unconditional: 4, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 18, positive: 16, positive conditional: 12, positive unconditional: 4, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 18, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 3, positive conditional: 2, positive unconditional: 1, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 19, positive: 11, positive conditional: 8, positive unconditional: 3, negative: 8, negative conditional: 4, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 33, positive: 13, positive conditional: 13, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 18, unknown conditional: 18, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 375, Positive cache size: 341, Positive conditional cache size: 341, Positive unconditional cache size: 0, Negative cache size: 34, Negative conditional cache size: 34, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 125.2ms, 69 PlacesBefore, 67 PlacesAfterwards, 78 TransitionsBefore, 78 TransitionsAfterwards, 730 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 94 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 32, positive: 28, positive conditional: 28, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 9, positive unconditional: 3, 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: 12, positive: 12, positive conditional: 9, positive unconditional: 3, 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: 12, positive: 12, positive conditional: 0, positive unconditional: 12, 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: 32, positive: 16, positive conditional: 16, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 12, unknown conditional: 12, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 387, Positive cache size: 353, Positive conditional cache size: 353, Positive unconditional cache size: 0, Negative cache size: 34, Negative conditional cache size: 34, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 116.8ms, 77 PlacesBefore, 73 PlacesAfterwards, 80 TransitionsBefore, 80 TransitionsAfterwards, 722 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 90 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 31, positive: 27, positive conditional: 27, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 15, positive: 13, positive conditional: 8, positive unconditional: 5, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 15, positive: 13, positive conditional: 8, positive unconditional: 5, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 15, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 7, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 7, negative conditional: 5, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 31, positive: 14, positive conditional: 14, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 15, unknown conditional: 15, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 402, Positive cache size: 366, Positive conditional cache size: 366, Positive unconditional cache size: 0, Negative cache size: 36, Negative conditional cache size: 36, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 131.4ms, 79 PlacesBefore, 79 PlacesAfterwards, 87 TransitionsBefore, 87 TransitionsAfterwards, 870 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 90 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 29, positive: 25, positive conditional: 25, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 4, 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: 4, positive: 4, positive conditional: 4, 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: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 29, positive: 21, positive conditional: 21, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 406, Positive cache size: 370, Positive conditional cache size: 370, Positive unconditional cache size: 0, Negative cache size: 36, Negative conditional cache size: 36, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 138.1ms, 86 PlacesBefore, 86 PlacesAfterwards, 89 TransitionsBefore, 89 TransitionsAfterwards, 884 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 90 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 31, positive: 27, positive conditional: 27, positive unconditional: 0, negative: 4, negative conditional: 4, 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: 4, positive unconditional: 1, 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: 4, positive unconditional: 1, 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: 31, positive: 22, positive conditional: 22, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 411, Positive cache size: 375, Positive conditional cache size: 375, Positive unconditional cache size: 0, Negative cache size: 36, Negative conditional cache size: 36, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 129.4ms, 91 PlacesBefore, 83 PlacesAfterwards, 83 TransitionsBefore, 83 TransitionsAfterwards, 770 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 90 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 30, positive: 26, positive conditional: 26, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 4, 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: 4, positive: 4, positive conditional: 4, 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: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 30, positive: 22, positive conditional: 22, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 415, Positive cache size: 379, Positive conditional cache size: 379, Positive unconditional cache size: 0, Negative cache size: 36, Negative conditional cache size: 36, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 214.8ms, 86 PlacesBefore, 84 PlacesAfterwards, 94 TransitionsBefore, 94 TransitionsAfterwards, 724 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 136 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 60, positive: 55, positive conditional: 55, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 17, positive: 16, positive conditional: 15, positive unconditional: 1, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 17, positive: 16, positive conditional: 15, positive unconditional: 1, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 17, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 16, positive: 11, positive conditional: 11, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 60, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 17, unknown conditional: 17, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 432, Positive cache size: 395, Positive conditional cache size: 395, Positive unconditional cache size: 0, Negative cache size: 37, Negative conditional cache size: 37, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 119.8ms, 81 PlacesBefore, 82 PlacesAfterwards, 87 TransitionsBefore, 88 TransitionsAfterwards, 580 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 2, positive unconditional: 2, 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: 4, positive: 4, positive conditional: 2, positive unconditional: 2, 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: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 436, Positive cache size: 399, Positive conditional cache size: 399, Positive unconditional cache size: 0, Negative cache size: 37, Negative conditional cache size: 37, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 97.9ms, 90 PlacesBefore, 86 PlacesAfterwards, 77 TransitionsBefore, 78 TransitionsAfterwards, 466 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 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: 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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 10, unknown conditional: 10, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 446, Positive cache size: 409, Positive conditional cache size: 409, Positive unconditional cache size: 0, Negative cache size: 37, Negative conditional cache size: 37, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 96.8ms, 87 PlacesBefore, 87 PlacesAfterwards, 81 TransitionsBefore, 82 TransitionsAfterwards, 494 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: 4, positive: 4, positive conditional: 4, 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: 4, positive: 4, positive conditional: 4, 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: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 6, positive conditional: 6, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 450, Positive cache size: 413, Positive conditional cache size: 413, Positive unconditional cache size: 0, Negative cache size: 37, Negative conditional cache size: 37, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 66.0ms, 91 PlacesBefore, 90 PlacesAfterwards, 82 TransitionsBefore, 82 TransitionsAfterwards, 502 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, 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): 450, Positive cache size: 413, Positive conditional cache size: 413, Positive unconditional cache size: 0, Negative cache size: 37, Negative conditional cache size: 37, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 130.4ms, 87 PlacesBefore, 80 PlacesAfterwards, 61 TransitionsBefore, 65 TransitionsAfterwards, 290 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 5 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 20 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 20, positive: 20, positive conditional: 20, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 15, positive: 15, positive conditional: 15, 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: 15, positive: 15, positive conditional: 15, 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: 15, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 20, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 15, unknown conditional: 15, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 465, Positive cache size: 428, Positive conditional cache size: 428, Positive unconditional cache size: 0, Negative cache size: 37, Negative conditional cache size: 37, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 41.5ms, 64 PlacesBefore, 61 PlacesAfterwards, 55 TransitionsBefore, 56 TransitionsAfterwards, 196 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 3 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 3, 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: 3, positive: 3, positive conditional: 3, 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: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 468, Positive cache size: 431, Positive conditional cache size: 431, Positive unconditional cache size: 0, Negative cache size: 37, Negative conditional cache size: 37, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 68.9ms, 64 PlacesBefore, 64 PlacesAfterwards, 61 TransitionsBefore, 62 TransitionsAfterwards, 292 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 9 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9, positive: 9, positive conditional: 9, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 6, positive unconditional: 1, 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: 7, positive: 7, positive conditional: 6, positive unconditional: 1, 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: 7, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 9, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 7, unknown conditional: 7, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 475, Positive cache size: 438, Positive conditional cache size: 438, Positive unconditional cache size: 0, Negative cache size: 37, Negative conditional cache size: 37, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 56.2ms, 66 PlacesBefore, 57 PlacesAfterwards, 51 TransitionsBefore, 51 TransitionsAfterwards, 164 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 8 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 7, positive unconditional: 1, 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: 8, positive: 8, positive conditional: 7, positive unconditional: 1, 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: 8, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 8, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 483, Positive cache size: 446, Positive conditional cache size: 446, Positive unconditional cache size: 0, Negative cache size: 37, Negative conditional cache size: 37, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.9ms, 37 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, 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): 483, Positive cache size: 446, Positive conditional cache size: 446, Positive unconditional cache size: 0, Negative cache size: 37, Negative conditional cache size: 37, Negative unconditional cache size: 0 - PositiveResult [Line: 71]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 29.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 7614.2ms, OverallIterations: 17, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 3577.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 916.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 121 SDtfs, 223 SDslu, 74 SDs, 0 SdLazy, 1150 SolverSat, 104 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 617.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 162 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 888.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=696occurred in iteration=8, InterpolantAutomatonStates: 141, 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: 38.2ms SsaConstructionTime, 144.4ms SatisfiabilityAnalysisTime, 902.1ms InterpolantComputationTime, 370 NumberOfCodeBlocks, 370 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 353 ConstructedInterpolants, 0 QuantifiedInterpolants, 1257 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...