/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/parallel-bakery-2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 08:57:50,296 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 08:57:50,354 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-11-30 08:57:50,378 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 08:57:50,379 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 08:57:50,379 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 08:57:50,380 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 08:57:50,380 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 08:57:50,380 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 08:57:50,383 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 08:57:50,383 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 08:57:50,383 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 08:57:50,383 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 08:57:50,384 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 08:57:50,385 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 08:57:50,385 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 08:57:50,385 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 08:57:50,385 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 08:57:50,385 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 08:57:50,385 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 08:57:50,385 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 08:57:50,386 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 08:57:50,386 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 08:57:50,386 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 08:57:50,386 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 08:57:50,387 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 08:57:50,387 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 08:57:50,387 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 08:57:50,388 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 08:57:50,388 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 08:57:50,388 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 08:57:50,388 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 08:57:50,389 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 08:57:50,389 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-11-30 08:57:50,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 08:57:50,557 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 08:57:50,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 08:57:50,559 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 08:57:50,559 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 08:57:50,560 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-bakery-2.wvr.c [2023-11-30 08:57:51,457 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 08:57:51,601 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 08:57:51,601 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bakery-2.wvr.c [2023-11-30 08:57:51,608 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8126c334/c60a8df632bb4c4b8cbf6922b7e33a65/FLAGd76de3a4b [2023-11-30 08:57:51,619 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8126c334/c60a8df632bb4c4b8cbf6922b7e33a65 [2023-11-30 08:57:51,621 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 08:57:51,622 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 08:57:51,624 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 08:57:51,624 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 08:57:51,627 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 08:57:51,627 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 08:57:51" (1/1) ... [2023-11-30 08:57:51,628 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a43f0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:57:51, skipping insertion in model container [2023-11-30 08:57:51,628 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 08:57:51" (1/1) ... [2023-11-30 08:57:51,652 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 08:57:51,795 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 08:57:51,802 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 08:57:51,834 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 08:57:51,840 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 08:57:51,840 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 08:57:51,844 INFO L206 MainTranslator]: Completed translation [2023-11-30 08:57:51,845 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:57:51 WrapperNode [2023-11-30 08:57:51,845 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 08:57:51,846 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 08:57:51,846 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 08:57:51,846 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 08:57:51,850 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:57:51" (1/1) ... [2023-11-30 08:57:51,862 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:57:51" (1/1) ... [2023-11-30 08:57:51,887 INFO L138 Inliner]: procedures = 21, calls = 61, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 166 [2023-11-30 08:57:51,888 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 08:57:51,888 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 08:57:51,888 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 08:57:51,889 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 08:57:51,894 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:57:51" (1/1) ... [2023-11-30 08:57:51,894 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:57:51" (1/1) ... [2023-11-30 08:57:51,904 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:57:51" (1/1) ... [2023-11-30 08:57:51,904 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:57:51" (1/1) ... [2023-11-30 08:57:51,913 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:57:51" (1/1) ... [2023-11-30 08:57:51,914 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:57:51" (1/1) ... [2023-11-30 08:57:51,915 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:57:51" (1/1) ... [2023-11-30 08:57:51,915 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:57:51" (1/1) ... [2023-11-30 08:57:51,917 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 08:57:51,917 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 08:57:51,917 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 08:57:51,917 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 08:57:51,918 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:57:51" (1/1) ... [2023-11-30 08:57:51,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 08:57:51,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:57:51,946 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-30 08:57:51,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-30 08:57:51,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 08:57:51,970 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-30 08:57:51,970 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-30 08:57:51,970 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-30 08:57:51,971 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-30 08:57:51,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 08:57:51,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 08:57:51,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 08:57:51,972 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-30 08:57:51,972 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-30 08:57:51,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 08:57:51,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 08:57:51,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 08:57:51,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 08:57:51,973 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-30 08:57:52,053 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 08:57:52,055 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 08:57:52,287 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 08:57:52,407 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 08:57:52,407 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-30 08:57:52,408 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 08:57:52 BoogieIcfgContainer [2023-11-30 08:57:52,409 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 08:57:52,411 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 08:57:52,411 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 08:57:52,413 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 08:57:52,413 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 08:57:51" (1/3) ... [2023-11-30 08:57:52,414 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3125cef2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 08:57:52, skipping insertion in model container [2023-11-30 08:57:52,414 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:57:51" (2/3) ... [2023-11-30 08:57:52,414 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3125cef2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 08:57:52, skipping insertion in model container [2023-11-30 08:57:52,414 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 08:57:52" (3/3) ... [2023-11-30 08:57:52,415 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bakery-2.wvr.c [2023-11-30 08:57:52,428 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 08:57:52,428 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-30 08:57:52,428 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 08:57:52,486 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-30 08:57:52,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 123 transitions, 260 flow [2023-11-30 08:57:52,569 INFO L124 PetriNetUnfolderBase]: 2/121 cut-off events. [2023-11-30 08:57:52,569 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-30 08:57:52,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 121 events. 2/121 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 76 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 78. Up to 2 conditions per place. [2023-11-30 08:57:52,573 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 123 transitions, 260 flow [2023-11-30 08:57:52,576 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 99 transitions, 207 flow [2023-11-30 08:57:52,591 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 08:57:52,596 INFO L362 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@60d16319, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 08:57:52,596 INFO L363 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-11-30 08:57:52,609 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 08:57:52,610 INFO L124 PetriNetUnfolderBase]: 1/61 cut-off events. [2023-11-30 08:57:52,610 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 08:57:52,610 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:57:52,610 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:57:52,611 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-30 08:57:52,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:57:52,615 INFO L85 PathProgramCache]: Analyzing trace with hash -443089488, now seen corresponding path program 1 times [2023-11-30 08:57:52,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:57:52,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437929003] [2023-11-30 08:57:52,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:57:52,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:57:52,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:57:53,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:57:53,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:57:53,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437929003] [2023-11-30 08:57:53,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437929003] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:57:53,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:57:53,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:57:53,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901472622] [2023-11-30 08:57:53,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:57:53,051 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:57:53,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:57:53,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:57:53,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:57:53,072 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 123 [2023-11-30 08:57:53,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 99 transitions, 207 flow. Second operand has 4 states, 4 states have (on average 91.5) internal successors, (366), 4 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:53,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:57:53,074 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 123 [2023-11-30 08:57:53,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:57:53,211 INFO L124 PetriNetUnfolderBase]: 99/355 cut-off events. [2023-11-30 08:57:53,211 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2023-11-30 08:57:53,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 617 conditions, 355 events. 99/355 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1589 event pairs, 99 based on Foata normal form. 1/272 useless extension candidates. Maximal degree in co-relation 492. Up to 224 conditions per place. [2023-11-30 08:57:53,216 INFO L140 encePairwiseOnDemand]: 118/123 looper letters, 25 selfloop transitions, 3 changer transitions 1/97 dead transitions. [2023-11-30 08:57:53,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 97 transitions, 259 flow [2023-11-30 08:57:53,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 08:57:53,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 08:57:53,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 386 transitions. [2023-11-30 08:57:53,230 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7845528455284553 [2023-11-30 08:57:53,230 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 386 transitions. [2023-11-30 08:57:53,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 386 transitions. [2023-11-30 08:57:53,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:57:53,235 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 386 transitions. [2023-11-30 08:57:53,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 96.5) internal successors, (386), 4 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) [2023-11-30 08:57:53,242 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:53,243 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:53,247 INFO L307 CegarLoopForPetriNet]: 105 programPoint places, 2 predicate places. [2023-11-30 08:57:53,247 INFO L500 AbstractCegarLoop]: Abstraction has has 107 places, 97 transitions, 259 flow [2023-11-30 08:57:53,247 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.5) internal successors, (366), 4 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:53,247 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:57:53,272 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:57:53,272 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 08:57:53,272 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-30 08:57:53,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:57:53,273 INFO L85 PathProgramCache]: Analyzing trace with hash -443089487, now seen corresponding path program 1 times [2023-11-30 08:57:53,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:57:53,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068992781] [2023-11-30 08:57:53,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:57:53,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:57:53,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:57:53,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:57:53,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:57:53,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068992781] [2023-11-30 08:57:53,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068992781] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:57:53,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:57:53,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:57:53,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237773208] [2023-11-30 08:57:53,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:57:53,510 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:57:53,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:57:53,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:57:53,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:57:53,511 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 123 [2023-11-30 08:57:53,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 97 transitions, 259 flow. Second operand has 6 states, 6 states have (on average 80.16666666666667) internal successors, (481), 6 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:53,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:57:53,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 123 [2023-11-30 08:57:53,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:57:53,644 INFO L124 PetriNetUnfolderBase]: 108/378 cut-off events. [2023-11-30 08:57:53,644 INFO L125 PetriNetUnfolderBase]: For 105/115 co-relation queries the response was YES. [2023-11-30 08:57:53,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 898 conditions, 378 events. 108/378 cut-off events. For 105/115 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1720 event pairs, 64 based on Foata normal form. 0/302 useless extension candidates. Maximal degree in co-relation 731. Up to 232 conditions per place. [2023-11-30 08:57:53,649 INFO L140 encePairwiseOnDemand]: 112/123 looper letters, 40 selfloop transitions, 10 changer transitions 1/115 dead transitions. [2023-11-30 08:57:53,649 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 115 transitions, 437 flow [2023-11-30 08:57:53,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 08:57:53,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 08:57:53,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 522 transitions. [2023-11-30 08:57:53,651 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7073170731707317 [2023-11-30 08:57:53,651 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 522 transitions. [2023-11-30 08:57:53,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 522 transitions. [2023-11-30 08:57:53,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:57:53,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 522 transitions. [2023-11-30 08:57:53,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 87.0) internal successors, (522), 6 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:53,654 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 123.0) internal successors, (861), 7 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:53,654 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 123.0) internal successors, (861), 7 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:53,655 INFO L307 CegarLoopForPetriNet]: 105 programPoint places, 7 predicate places. [2023-11-30 08:57:53,655 INFO L500 AbstractCegarLoop]: Abstraction has has 112 places, 115 transitions, 437 flow [2023-11-30 08:57:53,655 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.16666666666667) internal successors, (481), 6 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:53,655 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:57:53,656 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:57:53,656 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 08:57:53,656 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-30 08:57:53,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:57:53,656 INFO L85 PathProgramCache]: Analyzing trace with hash 654967490, now seen corresponding path program 1 times [2023-11-30 08:57:53,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:57:53,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865698511] [2023-11-30 08:57:53,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:57:53,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:57:53,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:57:53,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:57:53,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:57:53,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865698511] [2023-11-30 08:57:53,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865698511] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:57:53,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:57:53,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-30 08:57:53,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827885878] [2023-11-30 08:57:53,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:57:53,727 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-30 08:57:53,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:57:53,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-30 08:57:53,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-30 08:57:53,729 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 123 [2023-11-30 08:57:53,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 115 transitions, 437 flow. Second operand has 5 states, 5 states have (on average 90.0) internal successors, (450), 5 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:53,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:57:53,732 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 123 [2023-11-30 08:57:53,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:57:53,850 INFO L124 PetriNetUnfolderBase]: 115/401 cut-off events. [2023-11-30 08:57:53,850 INFO L125 PetriNetUnfolderBase]: For 251/264 co-relation queries the response was YES. [2023-11-30 08:57:53,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1135 conditions, 401 events. 115/401 cut-off events. For 251/264 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1785 event pairs, 33 based on Foata normal form. 1/334 useless extension candidates. Maximal degree in co-relation 920. Up to 228 conditions per place. [2023-11-30 08:57:53,853 INFO L140 encePairwiseOnDemand]: 116/123 looper letters, 50 selfloop transitions, 6 changer transitions 2/129 dead transitions. [2023-11-30 08:57:53,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 129 transitions, 634 flow [2023-11-30 08:57:53,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 08:57:53,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 08:57:53,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 474 transitions. [2023-11-30 08:57:53,855 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7707317073170732 [2023-11-30 08:57:53,855 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 474 transitions. [2023-11-30 08:57:53,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 474 transitions. [2023-11-30 08:57:53,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:57:53,855 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 474 transitions. [2023-11-30 08:57:53,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 94.8) internal successors, (474), 5 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:53,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 123.0) internal successors, (738), 6 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:53,857 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 123.0) internal successors, (738), 6 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:53,858 INFO L307 CegarLoopForPetriNet]: 105 programPoint places, 10 predicate places. [2023-11-30 08:57:53,858 INFO L500 AbstractCegarLoop]: Abstraction has has 115 places, 129 transitions, 634 flow [2023-11-30 08:57:53,859 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.0) internal successors, (450), 5 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:53,859 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:57:53,859 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:57:53,859 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 08:57:53,859 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-30 08:57:53,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:57:53,860 INFO L85 PathProgramCache]: Analyzing trace with hash 654967491, now seen corresponding path program 1 times [2023-11-30 08:57:53,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:57:53,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608968597] [2023-11-30 08:57:53,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:57:53,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:57:53,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:57:53,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:57:53,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:57:53,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608968597] [2023-11-30 08:57:53,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608968597] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:57:53,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:57:53,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:57:53,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4798889] [2023-11-30 08:57:53,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:57:53,965 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:57:53,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:57:53,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:57:53,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:57:53,969 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 123 [2023-11-30 08:57:53,970 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 129 transitions, 634 flow. Second operand has 6 states, 6 states have (on average 82.66666666666667) internal successors, (496), 6 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:53,970 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:57:53,970 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 123 [2023-11-30 08:57:53,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:57:54,090 INFO L124 PetriNetUnfolderBase]: 106/403 cut-off events. [2023-11-30 08:57:54,090 INFO L125 PetriNetUnfolderBase]: For 434/456 co-relation queries the response was YES. [2023-11-30 08:57:54,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1301 conditions, 403 events. 106/403 cut-off events. For 434/456 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1811 event pairs, 29 based on Foata normal form. 2/350 useless extension candidates. Maximal degree in co-relation 1034. Up to 213 conditions per place. [2023-11-30 08:57:54,093 INFO L140 encePairwiseOnDemand]: 112/123 looper letters, 60 selfloop transitions, 11 changer transitions 7/148 dead transitions. [2023-11-30 08:57:54,093 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 148 transitions, 940 flow [2023-11-30 08:57:54,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 08:57:54,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 08:57:54,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 620 transitions. [2023-11-30 08:57:54,095 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7200929152148664 [2023-11-30 08:57:54,095 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 620 transitions. [2023-11-30 08:57:54,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 620 transitions. [2023-11-30 08:57:54,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:57:54,096 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 620 transitions. [2023-11-30 08:57:54,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 88.57142857142857) internal successors, (620), 7 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) [2023-11-30 08:57:54,099 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 123.0) internal successors, (984), 8 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:54,099 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 123.0) internal successors, (984), 8 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:54,100 INFO L307 CegarLoopForPetriNet]: 105 programPoint places, 16 predicate places. [2023-11-30 08:57:54,100 INFO L500 AbstractCegarLoop]: Abstraction has has 121 places, 148 transitions, 940 flow [2023-11-30 08:57:54,100 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.66666666666667) internal successors, (496), 6 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:54,100 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:57:54,101 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:57:54,101 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-30 08:57:54,101 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-30 08:57:54,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:57:54,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1233304469, now seen corresponding path program 1 times [2023-11-30 08:57:54,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:57:54,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107261416] [2023-11-30 08:57:54,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:57:54,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:57:54,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:57:54,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:57:54,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:57:54,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107261416] [2023-11-30 08:57:54,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107261416] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:57:54,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:57:54,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-30 08:57:54,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164085411] [2023-11-30 08:57:54,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:57:54,198 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-30 08:57:54,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:57:54,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-30 08:57:54,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-30 08:57:54,200 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 123 [2023-11-30 08:57:54,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 148 transitions, 940 flow. Second operand has 7 states, 7 states have (on average 85.28571428571429) internal successors, (597), 7 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:54,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:57:54,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 123 [2023-11-30 08:57:54,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:57:54,322 INFO L124 PetriNetUnfolderBase]: 98/374 cut-off events. [2023-11-30 08:57:54,322 INFO L125 PetriNetUnfolderBase]: For 630/665 co-relation queries the response was YES. [2023-11-30 08:57:54,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1429 conditions, 374 events. 98/374 cut-off events. For 630/665 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1607 event pairs, 21 based on Foata normal form. 0/329 useless extension candidates. Maximal degree in co-relation 1203. Up to 214 conditions per place. [2023-11-30 08:57:54,324 INFO L140 encePairwiseOnDemand]: 116/123 looper letters, 65 selfloop transitions, 6 changer transitions 7/143 dead transitions. [2023-11-30 08:57:54,324 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 143 transitions, 1044 flow [2023-11-30 08:57:54,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 08:57:54,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 08:57:54,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 531 transitions. [2023-11-30 08:57:54,328 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7195121951219512 [2023-11-30 08:57:54,328 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 531 transitions. [2023-11-30 08:57:54,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 531 transitions. [2023-11-30 08:57:54,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:57:54,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 531 transitions. [2023-11-30 08:57:54,329 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 88.5) internal successors, (531), 6 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:54,330 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 123.0) internal successors, (861), 7 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:54,330 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 123.0) internal successors, (861), 7 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:54,331 INFO L307 CegarLoopForPetriNet]: 105 programPoint places, 20 predicate places. [2023-11-30 08:57:54,332 INFO L500 AbstractCegarLoop]: Abstraction has has 125 places, 143 transitions, 1044 flow [2023-11-30 08:57:54,332 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 85.28571428571429) internal successors, (597), 7 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:54,332 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:57:54,332 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:57:54,332 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-30 08:57:54,332 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-30 08:57:54,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:57:54,333 INFO L85 PathProgramCache]: Analyzing trace with hash 192979474, now seen corresponding path program 1 times [2023-11-30 08:57:54,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:57:54,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032427121] [2023-11-30 08:57:54,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:57:54,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:57:54,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:57:54,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:57:54,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:57:54,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032427121] [2023-11-30 08:57:54,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032427121] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:57:54,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:57:54,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-30 08:57:54,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840694317] [2023-11-30 08:57:54,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:57:54,441 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-30 08:57:54,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:57:54,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-30 08:57:54,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-30 08:57:54,442 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 123 [2023-11-30 08:57:54,442 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 143 transitions, 1044 flow. Second operand has 7 states, 7 states have (on average 88.14285714285714) internal successors, (617), 7 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:54,442 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:57:54,442 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 123 [2023-11-30 08:57:54,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:57:54,585 INFO L124 PetriNetUnfolderBase]: 160/543 cut-off events. [2023-11-30 08:57:54,585 INFO L125 PetriNetUnfolderBase]: For 1313/1364 co-relation queries the response was YES. [2023-11-30 08:57:54,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2535 conditions, 543 events. 160/543 cut-off events. For 1313/1364 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2832 event pairs, 6 based on Foata normal form. 3/477 useless extension candidates. Maximal degree in co-relation 2050. Up to 336 conditions per place. [2023-11-30 08:57:54,589 INFO L140 encePairwiseOnDemand]: 110/123 looper letters, 95 selfloop transitions, 27 changer transitions 14/204 dead transitions. [2023-11-30 08:57:54,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 204 transitions, 2024 flow [2023-11-30 08:57:54,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-30 08:57:54,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-30 08:57:54,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 755 transitions. [2023-11-30 08:57:54,591 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7672764227642277 [2023-11-30 08:57:54,591 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 755 transitions. [2023-11-30 08:57:54,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 755 transitions. [2023-11-30 08:57:54,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:57:54,591 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 755 transitions. [2023-11-30 08:57:54,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 94.375) internal successors, (755), 8 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:54,593 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 123.0) internal successors, (1107), 9 states have internal predecessors, (1107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:54,593 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 123.0) internal successors, (1107), 9 states have internal predecessors, (1107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:54,594 INFO L307 CegarLoopForPetriNet]: 105 programPoint places, 27 predicate places. [2023-11-30 08:57:54,594 INFO L500 AbstractCegarLoop]: Abstraction has has 132 places, 204 transitions, 2024 flow [2023-11-30 08:57:54,594 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 88.14285714285714) internal successors, (617), 7 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:54,594 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:57:54,594 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:57:54,594 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-30 08:57:54,595 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-30 08:57:54,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:57:54,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1957429606, now seen corresponding path program 2 times [2023-11-30 08:57:54,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:57:54,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965745747] [2023-11-30 08:57:54,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:57:54,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:57:54,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:57:54,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:57:54,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:57:54,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965745747] [2023-11-30 08:57:54,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965745747] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:57:54,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:57:54,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 08:57:54,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577105872] [2023-11-30 08:57:54,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:57:54,730 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 08:57:54,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:57:54,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 08:57:54,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-11-30 08:57:54,731 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 123 [2023-11-30 08:57:54,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 204 transitions, 2024 flow. Second operand has 8 states, 8 states have (on average 80.0) internal successors, (640), 8 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:54,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:57:54,732 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 123 [2023-11-30 08:57:54,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:57:54,868 INFO L124 PetriNetUnfolderBase]: 197/623 cut-off events. [2023-11-30 08:57:54,868 INFO L125 PetriNetUnfolderBase]: For 2191/2264 co-relation queries the response was YES. [2023-11-30 08:57:54,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3426 conditions, 623 events. 197/623 cut-off events. For 2191/2264 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3421 event pairs, 4 based on Foata normal form. 14/563 useless extension candidates. Maximal degree in co-relation 2792. Up to 405 conditions per place. [2023-11-30 08:57:54,873 INFO L140 encePairwiseOnDemand]: 111/123 looper letters, 128 selfloop transitions, 21 changer transitions 21/237 dead transitions. [2023-11-30 08:57:54,873 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 237 transitions, 2815 flow [2023-11-30 08:57:54,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-30 08:57:54,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-30 08:57:54,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 682 transitions. [2023-11-30 08:57:54,875 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.693089430894309 [2023-11-30 08:57:54,875 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 682 transitions. [2023-11-30 08:57:54,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 682 transitions. [2023-11-30 08:57:54,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:57:54,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 682 transitions. [2023-11-30 08:57:54,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 85.25) internal successors, (682), 8 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) [2023-11-30 08:57:54,877 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 123.0) internal successors, (1107), 9 states have internal predecessors, (1107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:54,878 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 123.0) internal successors, (1107), 9 states have internal predecessors, (1107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:54,878 INFO L307 CegarLoopForPetriNet]: 105 programPoint places, 33 predicate places. [2023-11-30 08:57:54,879 INFO L500 AbstractCegarLoop]: Abstraction has has 138 places, 237 transitions, 2815 flow [2023-11-30 08:57:54,880 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 80.0) internal successors, (640), 8 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:54,880 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:57:54,880 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:57:54,880 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-30 08:57:54,880 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-30 08:57:54,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:57:54,880 INFO L85 PathProgramCache]: Analyzing trace with hash -850141158, now seen corresponding path program 1 times [2023-11-30 08:57:54,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:57:54,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925519256] [2023-11-30 08:57:54,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:57:54,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:57:54,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:57:55,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:57:55,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:57:55,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925519256] [2023-11-30 08:57:55,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925519256] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:57:55,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:57:55,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-30 08:57:55,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084377936] [2023-11-30 08:57:55,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:57:55,063 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-30 08:57:55,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:57:55,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-30 08:57:55,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-30 08:57:55,064 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 123 [2023-11-30 08:57:55,065 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 237 transitions, 2815 flow. Second operand has 7 states, 7 states have (on average 80.28571428571429) internal successors, (562), 7 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:55,065 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:57:55,065 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 123 [2023-11-30 08:57:55,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:57:55,214 INFO L124 PetriNetUnfolderBase]: 185/628 cut-off events. [2023-11-30 08:57:55,215 INFO L125 PetriNetUnfolderBase]: For 2880/2959 co-relation queries the response was YES. [2023-11-30 08:57:55,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3711 conditions, 628 events. 185/628 cut-off events. For 2880/2959 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3561 event pairs, 7 based on Foata normal form. 5/574 useless extension candidates. Maximal degree in co-relation 3009. Up to 389 conditions per place. [2023-11-30 08:57:55,220 INFO L140 encePairwiseOnDemand]: 112/123 looper letters, 132 selfloop transitions, 20 changer transitions 25/244 dead transitions. [2023-11-30 08:57:55,220 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 244 transitions, 3265 flow [2023-11-30 08:57:55,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 08:57:55,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 08:57:55,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 600 transitions. [2023-11-30 08:57:55,222 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6968641114982579 [2023-11-30 08:57:55,222 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 600 transitions. [2023-11-30 08:57:55,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 600 transitions. [2023-11-30 08:57:55,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:57:55,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 600 transitions. [2023-11-30 08:57:55,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 85.71428571428571) internal successors, (600), 7 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:55,225 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 123.0) internal successors, (984), 8 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:55,225 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 123.0) internal successors, (984), 8 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:55,227 INFO L307 CegarLoopForPetriNet]: 105 programPoint places, 38 predicate places. [2023-11-30 08:57:55,227 INFO L500 AbstractCegarLoop]: Abstraction has has 143 places, 244 transitions, 3265 flow [2023-11-30 08:57:55,227 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 80.28571428571429) internal successors, (562), 7 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:55,227 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:57:55,227 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:57:55,227 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-30 08:57:55,228 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-30 08:57:55,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:57:55,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1986320370, now seen corresponding path program 1 times [2023-11-30 08:57:55,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:57:55,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635714302] [2023-11-30 08:57:55,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:57:55,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:57:55,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:57:55,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:57:55,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:57:55,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635714302] [2023-11-30 08:57:55,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635714302] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:57:55,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:57:55,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:57:55,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131661040] [2023-11-30 08:57:55,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:57:55,344 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:57:55,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:57:55,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:57:55,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:57:55,346 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 123 [2023-11-30 08:57:55,346 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 244 transitions, 3265 flow. Second operand has 6 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:55,346 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:57:55,346 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 123 [2023-11-30 08:57:55,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:57:55,468 INFO L124 PetriNetUnfolderBase]: 189/661 cut-off events. [2023-11-30 08:57:55,468 INFO L125 PetriNetUnfolderBase]: For 3901/4038 co-relation queries the response was YES. [2023-11-30 08:57:55,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4149 conditions, 661 events. 189/661 cut-off events. For 3901/4038 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3862 event pairs, 6 based on Foata normal form. 2/611 useless extension candidates. Maximal degree in co-relation 3213. Up to 401 conditions per place. [2023-11-30 08:57:55,473 INFO L140 encePairwiseOnDemand]: 111/123 looper letters, 123 selfloop transitions, 29 changer transitions 31/263 dead transitions. [2023-11-30 08:57:55,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 263 transitions, 3962 flow [2023-11-30 08:57:55,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 08:57:55,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 08:57:55,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 609 transitions. [2023-11-30 08:57:55,474 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7073170731707317 [2023-11-30 08:57:55,474 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 609 transitions. [2023-11-30 08:57:55,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 609 transitions. [2023-11-30 08:57:55,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:57:55,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 609 transitions. [2023-11-30 08:57:55,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 87.0) internal successors, (609), 7 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:55,479 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 123.0) internal successors, (984), 8 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:55,479 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 123.0) internal successors, (984), 8 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:55,480 INFO L307 CegarLoopForPetriNet]: 105 programPoint places, 44 predicate places. [2023-11-30 08:57:55,480 INFO L500 AbstractCegarLoop]: Abstraction has has 149 places, 263 transitions, 3962 flow [2023-11-30 08:57:55,480 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:55,480 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:57:55,480 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:57:55,480 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-30 08:57:55,480 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-30 08:57:55,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:57:55,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1986320371, now seen corresponding path program 1 times [2023-11-30 08:57:55,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:57:55,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706327583] [2023-11-30 08:57:55,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:57:55,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:57:55,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:57:55,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:57:55,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:57:55,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706327583] [2023-11-30 08:57:55,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706327583] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:57:55,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:57:55,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-30 08:57:55,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636221087] [2023-11-30 08:57:55,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:57:55,521 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-30 08:57:55,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:57:55,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-30 08:57:55,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-30 08:57:55,523 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 123 [2023-11-30 08:57:55,523 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 263 transitions, 3962 flow. Second operand has 5 states, 5 states have (on average 90.2) internal successors, (451), 5 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:55,523 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:57:55,523 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 123 [2023-11-30 08:57:55,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:57:55,633 INFO L124 PetriNetUnfolderBase]: 158/590 cut-off events. [2023-11-30 08:57:55,633 INFO L125 PetriNetUnfolderBase]: For 4504/4671 co-relation queries the response was YES. [2023-11-30 08:57:55,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3900 conditions, 590 events. 158/590 cut-off events. For 4504/4671 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 3403 event pairs, 2 based on Foata normal form. 4/578 useless extension candidates. Maximal degree in co-relation 3000. Up to 348 conditions per place. [2023-11-30 08:57:55,637 INFO L140 encePairwiseOnDemand]: 116/123 looper letters, 118 selfloop transitions, 7 changer transitions 39/245 dead transitions. [2023-11-30 08:57:55,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 245 transitions, 3929 flow [2023-11-30 08:57:55,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 08:57:55,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 08:57:55,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 466 transitions. [2023-11-30 08:57:55,638 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7577235772357723 [2023-11-30 08:57:55,638 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 466 transitions. [2023-11-30 08:57:55,639 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 466 transitions. [2023-11-30 08:57:55,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:57:55,639 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 466 transitions. [2023-11-30 08:57:55,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 93.2) internal successors, (466), 5 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:55,640 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 123.0) internal successors, (738), 6 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:55,641 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 123.0) internal successors, (738), 6 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:55,642 INFO L307 CegarLoopForPetriNet]: 105 programPoint places, 47 predicate places. [2023-11-30 08:57:55,642 INFO L500 AbstractCegarLoop]: Abstraction has has 152 places, 245 transitions, 3929 flow [2023-11-30 08:57:55,642 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.2) internal successors, (451), 5 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:55,642 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:57:55,642 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:57:55,642 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-30 08:57:55,642 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-30 08:57:55,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:57:55,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1083212318, now seen corresponding path program 1 times [2023-11-30 08:57:55,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:57:55,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110557122] [2023-11-30 08:57:55,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:57:55,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:57:55,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:57:55,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:57:55,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:57:55,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110557122] [2023-11-30 08:57:55,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110557122] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:57:55,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:57:55,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:57:55,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258029571] [2023-11-30 08:57:55,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:57:55,695 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 08:57:55,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:57:55,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 08:57:55,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 08:57:55,696 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 123 [2023-11-30 08:57:55,696 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 245 transitions, 3929 flow. Second operand has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:55,696 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:57:55,696 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 123 [2023-11-30 08:57:55,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:57:55,779 INFO L124 PetriNetUnfolderBase]: 161/599 cut-off events. [2023-11-30 08:57:55,779 INFO L125 PetriNetUnfolderBase]: For 6385/6529 co-relation queries the response was YES. [2023-11-30 08:57:55,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4153 conditions, 599 events. 161/599 cut-off events. For 6385/6529 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3444 event pairs, 6 based on Foata normal form. 11/593 useless extension candidates. Maximal degree in co-relation 3172. Up to 346 conditions per place. [2023-11-30 08:57:55,784 INFO L140 encePairwiseOnDemand]: 120/123 looper letters, 121 selfloop transitions, 2 changer transitions 39/251 dead transitions. [2023-11-30 08:57:55,784 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 251 transitions, 4380 flow [2023-11-30 08:57:55,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 08:57:55,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 08:57:55,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 308 transitions. [2023-11-30 08:57:55,785 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8346883468834688 [2023-11-30 08:57:55,785 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 308 transitions. [2023-11-30 08:57:55,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 308 transitions. [2023-11-30 08:57:55,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:57:55,785 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 308 transitions. [2023-11-30 08:57:55,786 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 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) [2023-11-30 08:57:55,786 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:55,786 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:55,787 INFO L307 CegarLoopForPetriNet]: 105 programPoint places, 49 predicate places. [2023-11-30 08:57:55,787 INFO L500 AbstractCegarLoop]: Abstraction has has 154 places, 251 transitions, 4380 flow [2023-11-30 08:57:55,787 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:55,787 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:57:55,787 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:57:55,787 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-30 08:57:55,787 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-30 08:57:55,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:57:55,788 INFO L85 PathProgramCache]: Analyzing trace with hash 286480414, now seen corresponding path program 2 times [2023-11-30 08:57:55,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:57:55,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015628532] [2023-11-30 08:57:55,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:57:55,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:57:55,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:57:55,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:57:55,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:57:55,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015628532] [2023-11-30 08:57:55,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015628532] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:57:55,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:57:55,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 08:57:55,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817499196] [2023-11-30 08:57:55,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:57:55,937 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-30 08:57:55,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:57:55,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-30 08:57:55,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-30 08:57:55,938 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 123 [2023-11-30 08:57:55,938 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 251 transitions, 4380 flow. Second operand has 7 states, 7 states have (on average 93.42857142857143) internal successors, (654), 7 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:55,938 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:57:55,938 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 123 [2023-11-30 08:57:55,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:57:56,159 INFO L124 PetriNetUnfolderBase]: 197/674 cut-off events. [2023-11-30 08:57:56,159 INFO L125 PetriNetUnfolderBase]: For 8314/8514 co-relation queries the response was YES. [2023-11-30 08:57:56,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5379 conditions, 674 events. 197/674 cut-off events. For 8314/8514 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 4019 event pairs, 6 based on Foata normal form. 16/671 useless extension candidates. Maximal degree in co-relation 4986. Up to 417 conditions per place. [2023-11-30 08:57:56,164 INFO L140 encePairwiseOnDemand]: 115/123 looper letters, 144 selfloop transitions, 39 changer transitions 49/303 dead transitions. [2023-11-30 08:57:56,165 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 303 transitions, 6005 flow [2023-11-30 08:57:56,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 08:57:56,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 08:57:56,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 699 transitions. [2023-11-30 08:57:56,166 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8118466898954704 [2023-11-30 08:57:56,166 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 699 transitions. [2023-11-30 08:57:56,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 699 transitions. [2023-11-30 08:57:56,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:57:56,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 699 transitions. [2023-11-30 08:57:56,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 99.85714285714286) internal successors, (699), 7 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:56,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 123.0) internal successors, (984), 8 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:56,170 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 123.0) internal successors, (984), 8 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:56,171 INFO L307 CegarLoopForPetriNet]: 105 programPoint places, 55 predicate places. [2023-11-30 08:57:56,171 INFO L500 AbstractCegarLoop]: Abstraction has has 160 places, 303 transitions, 6005 flow [2023-11-30 08:57:56,171 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 93.42857142857143) internal successors, (654), 7 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:56,171 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:57:56,171 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:57:56,171 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-30 08:57:56,171 INFO L425 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-30 08:57:56,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:57:56,172 INFO L85 PathProgramCache]: Analyzing trace with hash 2033861078, now seen corresponding path program 3 times [2023-11-30 08:57:56,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:57:56,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050675686] [2023-11-30 08:57:56,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:57:56,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:57:56,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:57:56,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:57:56,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:57:56,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050675686] [2023-11-30 08:57:56,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050675686] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:57:56,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:57:56,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 08:57:56,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453076319] [2023-11-30 08:57:56,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:57:56,264 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 08:57:56,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:57:56,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 08:57:56,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-30 08:57:56,265 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 123 [2023-11-30 08:57:56,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 303 transitions, 6005 flow. Second operand has 8 states, 8 states have (on average 81.0) internal successors, (648), 8 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:56,266 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:57:56,266 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 123 [2023-11-30 08:57:56,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:57:56,466 INFO L124 PetriNetUnfolderBase]: 196/706 cut-off events. [2023-11-30 08:57:56,467 INFO L125 PetriNetUnfolderBase]: For 9631/9820 co-relation queries the response was YES. [2023-11-30 08:57:56,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5732 conditions, 706 events. 196/706 cut-off events. For 9631/9820 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4341 event pairs, 8 based on Foata normal form. 16/712 useless extension candidates. Maximal degree in co-relation 5311. Up to 420 conditions per place. [2023-11-30 08:57:56,472 INFO L140 encePairwiseOnDemand]: 109/123 looper letters, 83 selfloop transitions, 18 changer transitions 131/302 dead transitions. [2023-11-30 08:57:56,472 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 302 transitions, 6421 flow [2023-11-30 08:57:56,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-30 08:57:56,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-30 08:57:56,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 990 transitions. [2023-11-30 08:57:56,475 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6707317073170732 [2023-11-30 08:57:56,475 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 990 transitions. [2023-11-30 08:57:56,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 990 transitions. [2023-11-30 08:57:56,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:57:56,475 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 990 transitions. [2023-11-30 08:57:56,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 82.5) internal successors, (990), 12 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:56,478 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 123.0) internal successors, (1599), 13 states have internal predecessors, (1599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:56,479 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 123.0) internal successors, (1599), 13 states have internal predecessors, (1599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:56,479 INFO L307 CegarLoopForPetriNet]: 105 programPoint places, 65 predicate places. [2023-11-30 08:57:56,479 INFO L500 AbstractCegarLoop]: Abstraction has has 170 places, 302 transitions, 6421 flow [2023-11-30 08:57:56,480 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 81.0) internal successors, (648), 8 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:56,480 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:57:56,480 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:57:56,480 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-30 08:57:56,480 INFO L425 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-11-30 08:57:56,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:57:56,480 INFO L85 PathProgramCache]: Analyzing trace with hash 2034352598, now seen corresponding path program 1 times [2023-11-30 08:57:56,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:57:56,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183881569] [2023-11-30 08:57:56,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:57:56,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:57:56,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:57:56,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:57:56,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:57:56,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183881569] [2023-11-30 08:57:56,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183881569] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:57:56,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:57:56,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 08:57:56,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912878929] [2023-11-30 08:57:56,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:57:56,594 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 08:57:56,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:57:56,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 08:57:56,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-30 08:57:56,595 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 123 [2023-11-30 08:57:56,596 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 302 transitions, 6421 flow. Second operand has 8 states, 8 states have (on average 81.0) internal successors, (648), 8 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:56,596 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:57:56,596 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 123 [2023-11-30 08:57:56,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:57:56,787 INFO L124 PetriNetUnfolderBase]: 192/694 cut-off events. [2023-11-30 08:57:56,787 INFO L125 PetriNetUnfolderBase]: For 10697/10882 co-relation queries the response was YES. [2023-11-30 08:57:56,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5938 conditions, 694 events. 192/694 cut-off events. For 10697/10882 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4162 event pairs, 8 based on Foata normal form. 15/706 useless extension candidates. Maximal degree in co-relation 4745. Up to 408 conditions per place. [2023-11-30 08:57:56,791 INFO L140 encePairwiseOnDemand]: 109/123 looper letters, 0 selfloop transitions, 0 changer transitions 295/295 dead transitions. [2023-11-30 08:57:56,791 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 295 transitions, 6635 flow [2023-11-30 08:57:56,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-30 08:57:56,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-30 08:57:56,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1066 transitions. [2023-11-30 08:57:56,794 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2023-11-30 08:57:56,794 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1066 transitions. [2023-11-30 08:57:56,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1066 transitions. [2023-11-30 08:57:56,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:57:56,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1066 transitions. [2023-11-30 08:57:56,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 82.0) internal successors, (1066), 13 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:56,798 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 123.0) internal successors, (1722), 14 states have internal predecessors, (1722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:56,798 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 123.0) internal successors, (1722), 14 states have internal predecessors, (1722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:56,798 INFO L307 CegarLoopForPetriNet]: 105 programPoint places, 76 predicate places. [2023-11-30 08:57:56,799 INFO L500 AbstractCegarLoop]: Abstraction has has 181 places, 295 transitions, 6635 flow [2023-11-30 08:57:56,799 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 81.0) internal successors, (648), 8 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:57:56,803 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/parallel-bakery-2.wvr.c_BEv2_AllErrorsAtOnce [2023-11-30 08:57:56,836 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2023-11-30 08:57:56,836 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2023-11-30 08:57:56,836 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2023-11-30 08:57:56,836 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2023-11-30 08:57:56,836 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2023-11-30 08:57:56,837 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2023-11-30 08:57:56,837 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2023-11-30 08:57:56,837 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2023-11-30 08:57:56,837 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 18 remaining) [2023-11-30 08:57:56,837 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2023-11-30 08:57:56,837 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2023-11-30 08:57:56,837 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2023-11-30 08:57:56,837 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2023-11-30 08:57:56,837 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2023-11-30 08:57:56,837 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2023-11-30 08:57:56,837 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2023-11-30 08:57:56,837 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2023-11-30 08:57:56,838 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2023-11-30 08:57:56,838 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-30 08:57:56,838 INFO L457 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:57:56,841 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 08:57:56,841 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 08:57:56,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 08:57:56 BasicIcfg [2023-11-30 08:57:56,847 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 08:57:56,847 INFO L158 Benchmark]: Toolchain (without parser) took 5225.77ms. Allocated memory was 379.6MB in the beginning and 845.2MB in the end (delta: 465.6MB). Free memory was 326.3MB in the beginning and 582.8MB in the end (delta: -256.5MB). Peak memory consumption was 210.2MB. Max. memory is 16.0GB. [2023-11-30 08:57:56,847 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 379.6MB. Free memory is still 332.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 08:57:56,848 INFO L158 Benchmark]: CACSL2BoogieTranslator took 221.47ms. Allocated memory is still 379.6MB. Free memory was 326.3MB in the beginning and 314.8MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-11-30 08:57:56,848 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.41ms. Allocated memory is still 379.6MB. Free memory was 314.8MB in the beginning and 312.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 08:57:56,848 INFO L158 Benchmark]: Boogie Preprocessor took 28.28ms. Allocated memory is still 379.6MB. Free memory was 312.7MB in the beginning and 311.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 08:57:56,848 INFO L158 Benchmark]: RCFGBuilder took 492.27ms. Allocated memory was 379.6MB in the beginning and 539.0MB in the end (delta: 159.4MB). Free memory was 311.2MB in the beginning and 503.7MB in the end (delta: -192.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2023-11-30 08:57:56,848 INFO L158 Benchmark]: TraceAbstraction took 4436.19ms. Allocated memory was 539.0MB in the beginning and 845.2MB in the end (delta: 306.2MB). Free memory was 502.8MB in the beginning and 582.8MB in the end (delta: -80.0MB). Peak memory consumption was 224.8MB. Max. memory is 16.0GB. [2023-11-30 08:57:56,849 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 379.6MB. Free memory is still 332.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 221.47ms. Allocated memory is still 379.6MB. Free memory was 326.3MB in the beginning and 314.8MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 42.41ms. Allocated memory is still 379.6MB. Free memory was 314.8MB in the beginning and 312.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 28.28ms. Allocated memory is still 379.6MB. Free memory was 312.7MB in the beginning and 311.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 492.27ms. Allocated memory was 379.6MB in the beginning and 539.0MB in the end (delta: 159.4MB). Free memory was 311.2MB in the beginning and 503.7MB in the end (delta: -192.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. * TraceAbstraction took 4436.19ms. Allocated memory was 539.0MB in the beginning and 845.2MB in the end (delta: 306.2MB). Free memory was 502.8MB in the beginning and 582.8MB in the end (delta: -80.0MB). Peak memory consumption was 224.8MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 158 locations, 18 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.3s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 486 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 486 mSDsluCounter, 227 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 101 mSDsCounter, 94 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1451 IncrementalHoareTripleChecker+Invalid, 1545 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 94 mSolverCounterUnsat, 126 mSDtfsCounter, 1451 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 121 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6635occurred in iteration=14, InterpolantAutomatonStates: 98, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 946 NumberOfCodeBlocks, 946 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 932 ConstructedInterpolants, 0 QuantifiedInterpolants, 2526 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-30 08:57:56,864 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...