/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -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 -i ../../../trunk/examples/svcomp/weaver/test-hard1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 15:36:38,762 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 15:36:38,802 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 [2023-12-09 15:36:38,821 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 15:36:38,822 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 15:36:38,822 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 15:36:38,823 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 15:36:38,823 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 15:36:38,823 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 15:36:38,823 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 15:36:38,824 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 15:36:38,824 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 15:36:38,824 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 15:36:38,824 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 15:36:38,825 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 15:36:38,825 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 15:36:38,825 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 15:36:38,825 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 15:36:38,825 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 15:36:38,826 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 15:36:38,826 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 15:36:38,828 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 15:36:38,828 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 15:36:38,829 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 15:36:38,829 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 15:36:38,829 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:36:38,829 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 15:36:38,829 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 15:36:38,830 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 15:36:38,830 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 15:36:38,830 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 15:36:38,830 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 15:36:38,830 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 15:36:38,830 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 15:36:39,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 15:36:39,012 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 15:36:39,014 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 15:36:39,015 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 15:36:39,015 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 15:36:39,016 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-hard1.wvr.c [2023-12-09 15:36:39,970 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 15:36:40,138 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 15:36:40,139 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-hard1.wvr.c [2023-12-09 15:36:40,150 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57c07a2cf/a116c4a151c245bfa668bb79c10a0663/FLAGb14d13c74 [2023-12-09 15:36:40,167 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57c07a2cf/a116c4a151c245bfa668bb79c10a0663 [2023-12-09 15:36:40,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 15:36:40,171 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 15:36:40,173 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 15:36:40,173 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 15:36:40,179 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 15:36:40,179 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:36:40" (1/1) ... [2023-12-09 15:36:40,180 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@319fd0da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:40, skipping insertion in model container [2023-12-09 15:36:40,180 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:36:40" (1/1) ... [2023-12-09 15:36:40,202 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 15:36:40,331 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-hard1.wvr.c[3425,3438] [2023-12-09 15:36:40,334 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:36:40,340 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 15:36:40,356 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-hard1.wvr.c[3425,3438] [2023-12-09 15:36:40,357 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:36:40,362 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 15:36:40,362 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 15:36:40,367 INFO L206 MainTranslator]: Completed translation [2023-12-09 15:36:40,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:40 WrapperNode [2023-12-09 15:36:40,367 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 15:36:40,368 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 15:36:40,368 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 15:36:40,368 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 15:36:40,372 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:40" (1/1) ... [2023-12-09 15:36:40,377 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:40" (1/1) ... [2023-12-09 15:36:40,390 INFO L138 Inliner]: procedures = 24, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 97 [2023-12-09 15:36:40,390 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 15:36:40,390 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 15:36:40,390 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 15:36:40,391 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 15:36:40,396 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:40" (1/1) ... [2023-12-09 15:36:40,397 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:40" (1/1) ... [2023-12-09 15:36:40,399 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:40" (1/1) ... [2023-12-09 15:36:40,399 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:40" (1/1) ... [2023-12-09 15:36:40,406 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:40" (1/1) ... [2023-12-09 15:36:40,409 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:40" (1/1) ... [2023-12-09 15:36:40,410 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:40" (1/1) ... [2023-12-09 15:36:40,411 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:40" (1/1) ... [2023-12-09 15:36:40,412 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 15:36:40,413 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 15:36:40,413 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 15:36:40,413 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 15:36:40,414 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:40" (1/1) ... [2023-12-09 15:36:40,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:36:40,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:36:40,433 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) [2023-12-09 15:36:40,439 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 [2023-12-09 15:36:40,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 15:36:40,461 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-09 15:36:40,461 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-09 15:36:40,461 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-12-09 15:36:40,462 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-12-09 15:36:40,462 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-12-09 15:36:40,462 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-12-09 15:36:40,462 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-12-09 15:36:40,462 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-12-09 15:36:40,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 15:36:40,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 15:36:40,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 15:36:40,462 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-09 15:36:40,462 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-09 15:36:40,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 15:36:40,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 15:36:40,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-09 15:36:40,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 15:36:40,463 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-09 15:36:40,531 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 15:36:40,532 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 15:36:40,761 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 15:36:40,812 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 15:36:40,812 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-12-09 15:36:40,813 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:36:40 BoogieIcfgContainer [2023-12-09 15:36:40,813 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 15:36:40,814 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 15:36:40,814 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 15:36:40,816 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 15:36:40,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:36:40" (1/3) ... [2023-12-09 15:36:40,817 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c350b26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:36:40, skipping insertion in model container [2023-12-09 15:36:40,817 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:40" (2/3) ... [2023-12-09 15:36:40,817 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c350b26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:36:40, skipping insertion in model container [2023-12-09 15:36:40,817 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:36:40" (3/3) ... [2023-12-09 15:36:40,818 INFO L112 eAbstractionObserver]: Analyzing ICFG test-hard1.wvr.c [2023-12-09 15:36:40,829 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 15:36:40,829 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 15:36:40,829 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 15:36:40,881 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-12-09 15:36:40,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 143 places, 140 transitions, 308 flow [2023-12-09 15:36:40,957 INFO L124 PetriNetUnfolderBase]: 10/136 cut-off events. [2023-12-09 15:36:40,958 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-12-09 15:36:40,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 136 events. 10/136 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 78 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 96. Up to 2 conditions per place. [2023-12-09 15:36:40,963 INFO L82 GeneralOperation]: Start removeDead. Operand has 143 places, 140 transitions, 308 flow [2023-12-09 15:36:40,966 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 126 places, 123 transitions, 270 flow [2023-12-09 15:36:40,975 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 15:36:40,979 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;@77e41019, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 15:36:40,979 INFO L363 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-12-09 15:36:41,000 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 15:36:41,000 INFO L124 PetriNetUnfolderBase]: 10/122 cut-off events. [2023-12-09 15:36:41,000 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-12-09 15:36:41,000 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:36:41,001 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:36:41,001 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 15:36:41,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:36:41,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1328426287, now seen corresponding path program 1 times [2023-12-09 15:36:41,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:36:41,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471773091] [2023-12-09 15:36:41,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:36:41,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:36:41,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:36:41,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:36:41,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:36:41,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471773091] [2023-12-09 15:36:41,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471773091] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:36:41,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:36:41,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 15:36:41,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232334385] [2023-12-09 15:36:41,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:36:41,808 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 15:36:41,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:36:41,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 15:36:41,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-09 15:36:41,835 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 140 [2023-12-09 15:36:41,841 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 123 transitions, 270 flow. Second operand has 8 states, 8 states have (on average 95.0) internal successors, (760), 8 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:41,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:36:41,842 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 140 [2023-12-09 15:36:41,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:36:42,237 INFO L124 PetriNetUnfolderBase]: 555/1348 cut-off events. [2023-12-09 15:36:42,237 INFO L125 PetriNetUnfolderBase]: For 217/218 co-relation queries the response was YES. [2023-12-09 15:36:42,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2293 conditions, 1348 events. 555/1348 cut-off events. For 217/218 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 7832 event pairs, 174 based on Foata normal form. 246/1427 useless extension candidates. Maximal degree in co-relation 1638. Up to 675 conditions per place. [2023-12-09 15:36:42,252 INFO L140 encePairwiseOnDemand]: 122/140 looper letters, 47 selfloop transitions, 7 changer transitions 7/136 dead transitions. [2023-12-09 15:36:42,253 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 136 transitions, 439 flow [2023-12-09 15:36:42,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-09 15:36:42,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-12-09 15:36:42,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 892 transitions. [2023-12-09 15:36:42,268 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.707936507936508 [2023-12-09 15:36:42,269 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 892 transitions. [2023-12-09 15:36:42,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 892 transitions. [2023-12-09 15:36:42,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:36:42,273 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 892 transitions. [2023-12-09 15:36:42,278 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 99.11111111111111) internal successors, (892), 9 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:42,283 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 140.0) internal successors, (1400), 10 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:42,284 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 140.0) internal successors, (1400), 10 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:42,287 INFO L308 CegarLoopForPetriNet]: 126 programPoint places, 8 predicate places. [2023-12-09 15:36:42,287 INFO L500 AbstractCegarLoop]: Abstraction has has 134 places, 136 transitions, 439 flow [2023-12-09 15:36:42,288 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 95.0) internal successors, (760), 8 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:42,288 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:36:42,289 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:36:42,289 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 15:36:42,289 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 15:36:42,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:36:42,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1414785077, now seen corresponding path program 1 times [2023-12-09 15:36:42,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:36:42,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578261685] [2023-12-09 15:36:42,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:36:42,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:36:42,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:36:42,796 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:36:42,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:36:42,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578261685] [2023-12-09 15:36:42,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578261685] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:36:42,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1983928878] [2023-12-09 15:36:42,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:36:42,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:36:42,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:36:42,800 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:36:42,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-09 15:36:42,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:36:42,896 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-09 15:36:42,901 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:36:43,110 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:36:43,111 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:36:43,326 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:36:43,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1983928878] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-09 15:36:43,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-09 15:36:43,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8, 8] total 18 [2023-12-09 15:36:43,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272987847] [2023-12-09 15:36:43,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:36:43,328 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 15:36:43,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:36:43,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 15:36:43,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2023-12-09 15:36:43,331 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 140 [2023-12-09 15:36:43,332 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 136 transitions, 439 flow. Second operand has 8 states, 8 states have (on average 95.125) internal successors, (761), 8 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:43,332 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:36:43,332 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 140 [2023-12-09 15:36:43,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:36:44,043 INFO L124 PetriNetUnfolderBase]: 2727/5097 cut-off events. [2023-12-09 15:36:44,044 INFO L125 PetriNetUnfolderBase]: For 2697/3767 co-relation queries the response was YES. [2023-12-09 15:36:44,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12473 conditions, 5097 events. 2727/5097 cut-off events. For 2697/3767 co-relation queries the response was YES. Maximal size of possible extension queue 279. Compared 35701 event pairs, 127 based on Foata normal form. 35/4570 useless extension candidates. Maximal degree in co-relation 9286. Up to 2686 conditions per place. [2023-12-09 15:36:44,079 INFO L140 encePairwiseOnDemand]: 125/140 looper letters, 180 selfloop transitions, 43 changer transitions 10/308 dead transitions. [2023-12-09 15:36:44,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 308 transitions, 1677 flow [2023-12-09 15:36:44,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-09 15:36:44,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-12-09 15:36:44,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1551 transitions. [2023-12-09 15:36:44,082 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7385714285714285 [2023-12-09 15:36:44,082 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1551 transitions. [2023-12-09 15:36:44,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1551 transitions. [2023-12-09 15:36:44,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:36:44,083 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1551 transitions. [2023-12-09 15:36:44,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 103.4) internal successors, (1551), 15 states have internal predecessors, (1551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:44,088 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 140.0) internal successors, (2240), 16 states have internal predecessors, (2240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:44,089 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 140.0) internal successors, (2240), 16 states have internal predecessors, (2240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:44,089 INFO L308 CegarLoopForPetriNet]: 126 programPoint places, 22 predicate places. [2023-12-09 15:36:44,089 INFO L500 AbstractCegarLoop]: Abstraction has has 148 places, 308 transitions, 1677 flow [2023-12-09 15:36:44,090 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 95.125) internal successors, (761), 8 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:44,090 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:36:44,090 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:36:44,108 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-09 15:36:44,296 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:36:44,323 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 15:36:44,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:36:44,324 INFO L85 PathProgramCache]: Analyzing trace with hash 796721283, now seen corresponding path program 2 times [2023-12-09 15:36:44,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:36:44,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709741211] [2023-12-09 15:36:44,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:36:44,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:36:44,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:36:44,568 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:36:44,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:36:44,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709741211] [2023-12-09 15:36:44,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709741211] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:36:44,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133683897] [2023-12-09 15:36:44,569 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-09 15:36:44,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:36:44,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:36:44,570 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:36:44,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-09 15:36:44,675 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-09 15:36:44,675 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:36:44,677 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-09 15:36:44,680 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:36:44,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:36:44,752 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:36:44,812 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:36:44,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1133683897] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-09 15:36:44,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-09 15:36:44,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2023-12-09 15:36:44,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337555237] [2023-12-09 15:36:44,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:36:44,814 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 15:36:44,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:36:44,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 15:36:44,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:36:44,819 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 140 [2023-12-09 15:36:44,820 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 308 transitions, 1677 flow. Second operand has 5 states, 5 states have (on average 113.6) internal successors, (568), 5 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:44,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:36:44,820 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 140 [2023-12-09 15:36:44,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:36:45,969 INFO L124 PetriNetUnfolderBase]: 6775/12884 cut-off events. [2023-12-09 15:36:45,969 INFO L125 PetriNetUnfolderBase]: For 15632/22143 co-relation queries the response was YES. [2023-12-09 15:36:45,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36765 conditions, 12884 events. 6775/12884 cut-off events. For 15632/22143 co-relation queries the response was YES. Maximal size of possible extension queue 773. Compared 109917 event pairs, 276 based on Foata normal form. 289/11203 useless extension candidates. Maximal degree in co-relation 26433. Up to 5990 conditions per place. [2023-12-09 15:36:46,105 INFO L140 encePairwiseOnDemand]: 129/140 looper letters, 356 selfloop transitions, 62 changer transitions 11/576 dead transitions. [2023-12-09 15:36:46,105 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 576 transitions, 4422 flow [2023-12-09 15:36:46,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-09 15:36:46,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-12-09 15:36:46,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 727 transitions. [2023-12-09 15:36:46,107 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8654761904761905 [2023-12-09 15:36:46,107 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 727 transitions. [2023-12-09 15:36:46,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 727 transitions. [2023-12-09 15:36:46,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:36:46,108 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 727 transitions. [2023-12-09 15:36:46,109 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 121.16666666666667) internal successors, (727), 6 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:46,110 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 140.0) internal successors, (980), 7 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:46,110 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 140.0) internal successors, (980), 7 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:46,111 INFO L308 CegarLoopForPetriNet]: 126 programPoint places, 27 predicate places. [2023-12-09 15:36:46,111 INFO L500 AbstractCegarLoop]: Abstraction has has 153 places, 576 transitions, 4422 flow [2023-12-09 15:36:46,111 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 113.6) internal successors, (568), 5 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:46,111 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:36:46,111 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:36:46,118 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-09 15:36:46,317 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-12-09 15:36:46,317 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 15:36:46,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:36:46,318 INFO L85 PathProgramCache]: Analyzing trace with hash 738531123, now seen corresponding path program 3 times [2023-12-09 15:36:46,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:36:46,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391916225] [2023-12-09 15:36:46,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:36:46,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:36:46,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:36:46,688 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:36:46,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:36:46,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391916225] [2023-12-09 15:36:46,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391916225] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:36:46,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:36:46,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-09 15:36:46,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016427684] [2023-12-09 15:36:46,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:36:46,689 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-09 15:36:46,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:36:46,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-09 15:36:46,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-09 15:36:46,690 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 140 [2023-12-09 15:36:46,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 576 transitions, 4422 flow. Second operand has 9 states, 9 states have (on average 94.66666666666667) internal successors, (852), 9 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:46,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:36:46,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 140 [2023-12-09 15:36:46,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:36:48,411 INFO L124 PetriNetUnfolderBase]: 7451/15746 cut-off events. [2023-12-09 15:36:48,411 INFO L125 PetriNetUnfolderBase]: For 29119/51747 co-relation queries the response was YES. [2023-12-09 15:36:48,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53136 conditions, 15746 events. 7451/15746 cut-off events. For 29119/51747 co-relation queries the response was YES. Maximal size of possible extension queue 951. Compared 150125 event pairs, 354 based on Foata normal form. 600/14022 useless extension candidates. Maximal degree in co-relation 36788. Up to 6943 conditions per place. [2023-12-09 15:36:48,529 INFO L140 encePairwiseOnDemand]: 129/140 looper letters, 823 selfloop transitions, 110 changer transitions 23/1034 dead transitions. [2023-12-09 15:36:48,530 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 1034 transitions, 10298 flow [2023-12-09 15:36:48,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-09 15:36:48,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-12-09 15:36:48,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 934 transitions. [2023-12-09 15:36:48,532 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7412698412698413 [2023-12-09 15:36:48,532 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 934 transitions. [2023-12-09 15:36:48,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 934 transitions. [2023-12-09 15:36:48,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:36:48,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 934 transitions. [2023-12-09 15:36:48,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 103.77777777777777) internal successors, (934), 9 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:48,535 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 140.0) internal successors, (1400), 10 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:48,535 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 140.0) internal successors, (1400), 10 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:48,536 INFO L308 CegarLoopForPetriNet]: 126 programPoint places, 35 predicate places. [2023-12-09 15:36:48,536 INFO L500 AbstractCegarLoop]: Abstraction has has 161 places, 1034 transitions, 10298 flow [2023-12-09 15:36:48,540 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 94.66666666666667) internal successors, (852), 9 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:48,540 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:36:48,540 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:36:48,540 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-09 15:36:48,540 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 15:36:48,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:36:48,541 INFO L85 PathProgramCache]: Analyzing trace with hash 863521838, now seen corresponding path program 1 times [2023-12-09 15:36:48,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:36:48,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844661964] [2023-12-09 15:36:48,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:36:48,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:36:48,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:36:48,842 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:36:48,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:36:48,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844661964] [2023-12-09 15:36:48,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844661964] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:36:48,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:36:48,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 15:36:48,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483739334] [2023-12-09 15:36:48,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:36:48,843 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 15:36:48,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:36:48,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 15:36:48,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-09 15:36:48,844 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 140 [2023-12-09 15:36:48,846 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 1034 transitions, 10298 flow. Second operand has 5 states, 5 states have (on average 113.6) internal successors, (568), 5 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:48,847 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:36:48,847 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 140 [2023-12-09 15:36:48,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:36:51,352 INFO L124 PetriNetUnfolderBase]: 10548/22002 cut-off events. [2023-12-09 15:36:51,353 INFO L125 PetriNetUnfolderBase]: For 67309/127750 co-relation queries the response was YES. [2023-12-09 15:36:51,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86030 conditions, 22002 events. 10548/22002 cut-off events. For 67309/127750 co-relation queries the response was YES. Maximal size of possible extension queue 1303. Compared 218797 event pairs, 468 based on Foata normal form. 879/19713 useless extension candidates. Maximal degree in co-relation 57025. Up to 10233 conditions per place. [2023-12-09 15:36:51,534 INFO L140 encePairwiseOnDemand]: 130/140 looper letters, 1170 selfloop transitions, 209 changer transitions 23/1604 dead transitions. [2023-12-09 15:36:51,534 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 1604 transitions, 19378 flow [2023-12-09 15:36:51,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-09 15:36:51,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-12-09 15:36:51,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 720 transitions. [2023-12-09 15:36:51,538 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8571428571428571 [2023-12-09 15:36:51,538 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 720 transitions. [2023-12-09 15:36:51,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 720 transitions. [2023-12-09 15:36:51,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:36:51,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 720 transitions. [2023-12-09 15:36:51,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:51,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 140.0) internal successors, (980), 7 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:51,543 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 140.0) internal successors, (980), 7 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:51,544 INFO L308 CegarLoopForPetriNet]: 126 programPoint places, 40 predicate places. [2023-12-09 15:36:51,544 INFO L500 AbstractCegarLoop]: Abstraction has has 166 places, 1604 transitions, 19378 flow [2023-12-09 15:36:51,544 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 113.6) internal successors, (568), 5 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:51,544 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:36:51,544 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:36:51,544 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-09 15:36:51,545 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 15:36:51,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:36:51,545 INFO L85 PathProgramCache]: Analyzing trace with hash -464057595, now seen corresponding path program 1 times [2023-12-09 15:36:51,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:36:51,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836374965] [2023-12-09 15:36:51,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:36:51,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:36:51,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:36:51,857 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:36:51,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:36:51,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836374965] [2023-12-09 15:36:51,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836374965] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:36:51,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:36:51,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 15:36:51,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499668469] [2023-12-09 15:36:51,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:36:51,861 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 15:36:51,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:36:51,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 15:36:51,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-09 15:36:51,862 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 140 [2023-12-09 15:36:51,863 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 1604 transitions, 19378 flow. Second operand has 8 states, 8 states have (on average 95.125) internal successors, (761), 8 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:51,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:36:51,863 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 140 [2023-12-09 15:36:51,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:36:56,301 INFO L124 PetriNetUnfolderBase]: 13622/29062 cut-off events. [2023-12-09 15:36:56,301 INFO L125 PetriNetUnfolderBase]: For 108558/241371 co-relation queries the response was YES. [2023-12-09 15:36:56,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132309 conditions, 29062 events. 13622/29062 cut-off events. For 108558/241371 co-relation queries the response was YES. Maximal size of possible extension queue 1878. Compared 309597 event pairs, 503 based on Foata normal form. 1989/27261 useless extension candidates. Maximal degree in co-relation 82610. Up to 13876 conditions per place. [2023-12-09 15:36:56,660 INFO L140 encePairwiseOnDemand]: 127/140 looper letters, 2115 selfloop transitions, 131 changer transitions 50/2383 dead transitions. [2023-12-09 15:36:56,660 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 2383 transitions, 32932 flow [2023-12-09 15:36:56,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-09 15:36:56,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-12-09 15:36:56,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1247 transitions. [2023-12-09 15:36:56,664 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7422619047619048 [2023-12-09 15:36:56,664 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1247 transitions. [2023-12-09 15:36:56,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1247 transitions. [2023-12-09 15:36:56,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:36:56,665 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1247 transitions. [2023-12-09 15:36:56,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 103.91666666666667) internal successors, (1247), 12 states have internal predecessors, (1247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:56,671 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 140.0) internal successors, (1820), 13 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:56,671 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 140.0) internal successors, (1820), 13 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:56,673 INFO L308 CegarLoopForPetriNet]: 126 programPoint places, 51 predicate places. [2023-12-09 15:36:56,673 INFO L500 AbstractCegarLoop]: Abstraction has has 177 places, 2383 transitions, 32932 flow [2023-12-09 15:36:56,674 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 95.125) internal successors, (761), 8 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:56,674 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:36:56,674 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:36:56,674 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-09 15:36:56,674 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 15:36:56,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:36:56,674 INFO L85 PathProgramCache]: Analyzing trace with hash -357596716, now seen corresponding path program 1 times [2023-12-09 15:36:56,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:36:56,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902551207] [2023-12-09 15:36:56,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:36:56,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:36:56,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:36:56,831 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:36:56,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:36:56,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902551207] [2023-12-09 15:36:56,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902551207] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:36:56,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:36:56,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 15:36:56,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113908350] [2023-12-09 15:36:56,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:36:56,832 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 15:36:56,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:36:56,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 15:36:56,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-09 15:36:56,834 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 140 [2023-12-09 15:36:56,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 2383 transitions, 32932 flow. Second operand has 5 states, 5 states have (on average 113.6) internal successors, (568), 5 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:36:56,835 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:36:56,835 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 140 [2023-12-09 15:36:56,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:37:11,310 INFO L124 PetriNetUnfolderBase]: 33058/69508 cut-off events. [2023-12-09 15:37:11,310 INFO L125 PetriNetUnfolderBase]: For 449089/682612 co-relation queries the response was YES. [2023-12-09 15:37:11,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 342462 conditions, 69508 events. 33058/69508 cut-off events. For 449089/682612 co-relation queries the response was YES. Maximal size of possible extension queue 5389. Compared 835251 event pairs, 1626 based on Foata normal form. 1562/60118 useless extension candidates. Maximal degree in co-relation 202788. Up to 30929 conditions per place. [2023-12-09 15:37:12,088 INFO L140 encePairwiseOnDemand]: 130/140 looper letters, 3763 selfloop transitions, 857 changer transitions 93/5401 dead transitions. [2023-12-09 15:37:12,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 5401 transitions, 88123 flow [2023-12-09 15:37:12,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-09 15:37:12,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-12-09 15:37:12,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 731 transitions. [2023-12-09 15:37:12,090 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8702380952380953 [2023-12-09 15:37:12,090 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 731 transitions. [2023-12-09 15:37:12,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 731 transitions. [2023-12-09 15:37:12,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:37:12,090 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 731 transitions. [2023-12-09 15:37:12,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 121.83333333333333) internal successors, (731), 6 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:12,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 140.0) internal successors, (980), 7 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:12,093 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 140.0) internal successors, (980), 7 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:12,093 INFO L308 CegarLoopForPetriNet]: 126 programPoint places, 56 predicate places. [2023-12-09 15:37:12,093 INFO L500 AbstractCegarLoop]: Abstraction has has 182 places, 5401 transitions, 88123 flow [2023-12-09 15:37:12,094 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 113.6) internal successors, (568), 5 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:12,094 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:37:12,094 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:37:12,094 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-09 15:37:12,094 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 15:37:12,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:37:12,094 INFO L85 PathProgramCache]: Analyzing trace with hash -431147906, now seen corresponding path program 2 times [2023-12-09 15:37:12,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:37:12,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200115120] [2023-12-09 15:37:12,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:37:12,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:37:12,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:37:12,252 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:37:12,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:37:12,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200115120] [2023-12-09 15:37:12,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200115120] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:37:12,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:37:12,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 15:37:12,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892888751] [2023-12-09 15:37:12,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:37:12,254 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 15:37:12,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:37:12,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 15:37:12,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-09 15:37:12,255 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 140 [2023-12-09 15:37:12,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 5401 transitions, 88123 flow. Second operand has 5 states, 5 states have (on average 113.6) internal successors, (568), 5 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:12,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:37:12,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 140 [2023-12-09 15:37:12,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:37:46,359 INFO L124 PetriNetUnfolderBase]: 37541/81729 cut-off events. [2023-12-09 15:37:46,360 INFO L125 PetriNetUnfolderBase]: For 574582/864532 co-relation queries the response was YES. [2023-12-09 15:37:46,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 441925 conditions, 81729 events. 37541/81729 cut-off events. For 574582/864532 co-relation queries the response was YES. Maximal size of possible extension queue 6442. Compared 1032528 event pairs, 1076 based on Foata normal form. 4033/73777 useless extension candidates. Maximal degree in co-relation 276432. Up to 35479 conditions per place. [2023-12-09 15:37:47,228 INFO L140 encePairwiseOnDemand]: 130/140 looper letters, 5414 selfloop transitions, 1036 changer transitions 166/7304 dead transitions. [2023-12-09 15:37:47,228 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 7304 transitions, 134973 flow [2023-12-09 15:37:47,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-09 15:37:47,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-12-09 15:37:47,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 716 transitions. [2023-12-09 15:37:47,230 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8523809523809524 [2023-12-09 15:37:47,230 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 716 transitions. [2023-12-09 15:37:47,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 716 transitions. [2023-12-09 15:37:47,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:37:47,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 716 transitions. [2023-12-09 15:37:47,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 119.33333333333333) internal successors, (716), 6 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:47,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 140.0) internal successors, (980), 7 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:47,232 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 140.0) internal successors, (980), 7 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:47,233 INFO L308 CegarLoopForPetriNet]: 126 programPoint places, 61 predicate places. [2023-12-09 15:37:47,233 INFO L500 AbstractCegarLoop]: Abstraction has has 187 places, 7304 transitions, 134973 flow [2023-12-09 15:37:47,233 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 113.6) internal successors, (568), 5 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:47,233 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:37:47,233 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:37:47,233 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-09 15:37:47,233 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 15:37:47,233 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:37:47,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1229084902, now seen corresponding path program 3 times [2023-12-09 15:37:47,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:37:47,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755494625] [2023-12-09 15:37:47,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:37:47,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:37:47,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:37:47,386 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:37:47,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:37:47,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755494625] [2023-12-09 15:37:47,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755494625] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:37:47,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:37:47,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 15:37:47,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81058114] [2023-12-09 15:37:47,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:37:47,388 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 15:37:47,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:37:47,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 15:37:47,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-09 15:37:47,389 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 140 [2023-12-09 15:37:47,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 7304 transitions, 134973 flow. Second operand has 6 states, 6 states have (on average 113.0) internal successors, (678), 6 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:37:47,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:37:47,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 140 [2023-12-09 15:37:47,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:38:48,890 INFO L124 PetriNetUnfolderBase]: 44179/95055 cut-off events. [2023-12-09 15:38:48,891 INFO L125 PetriNetUnfolderBase]: For 743865/926454 co-relation queries the response was YES. [2023-12-09 15:38:49,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 575817 conditions, 95055 events. 44179/95055 cut-off events. For 743865/926454 co-relation queries the response was YES. Maximal size of possible extension queue 7488. Compared 1215609 event pairs, 1369 based on Foata normal form. 5059/87361 useless extension candidates. Maximal degree in co-relation 478923. Up to 43033 conditions per place. [2023-12-09 15:38:50,072 INFO L140 encePairwiseOnDemand]: 130/140 looper letters, 6923 selfloop transitions, 1315 changer transitions 250/9176 dead transitions. [2023-12-09 15:38:50,073 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 9176 transitions, 188249 flow [2023-12-09 15:38:50,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-09 15:38:50,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-12-09 15:38:50,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 855 transitions. [2023-12-09 15:38:50,074 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8724489795918368 [2023-12-09 15:38:50,074 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 855 transitions. [2023-12-09 15:38:50,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 855 transitions. [2023-12-09 15:38:50,075 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:38:50,075 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 855 transitions. [2023-12-09 15:38:50,076 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 122.14285714285714) internal successors, (855), 7 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:50,077 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 140.0) internal successors, (1120), 8 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:50,078 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 140.0) internal successors, (1120), 8 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:50,078 INFO L308 CegarLoopForPetriNet]: 126 programPoint places, 67 predicate places. [2023-12-09 15:38:50,078 INFO L500 AbstractCegarLoop]: Abstraction has has 193 places, 9176 transitions, 188249 flow [2023-12-09 15:38:50,078 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 113.0) internal successors, (678), 6 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:50,078 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:38:50,078 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:38:50,079 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-09 15:38:50,079 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 15:38:50,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:38:50,079 INFO L85 PathProgramCache]: Analyzing trace with hash 956375000, now seen corresponding path program 4 times [2023-12-09 15:38:50,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:38:50,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078789954] [2023-12-09 15:38:50,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:38:50,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:38:50,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:38:50,223 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:38:50,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:38:50,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078789954] [2023-12-09 15:38:50,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078789954] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:38:50,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:38:50,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 15:38:50,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580234377] [2023-12-09 15:38:50,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:38:50,224 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 15:38:50,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:38:50,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 15:38:50,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-09 15:38:50,225 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 140 [2023-12-09 15:38:50,225 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 9176 transitions, 188249 flow. Second operand has 5 states, 5 states have (on average 113.6) internal successors, (568), 5 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:38:50,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:38:50,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 140 [2023-12-09 15:38:50,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:40:03,387 INFO L124 PetriNetUnfolderBase]: 40543/87171 cut-off events. [2023-12-09 15:40:03,387 INFO L125 PetriNetUnfolderBase]: For 810930/997613 co-relation queries the response was YES. [2023-12-09 15:40:03,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 572831 conditions, 87171 events. 40543/87171 cut-off events. For 810930/997613 co-relation queries the response was YES. Maximal size of possible extension queue 6792. Compared 1099026 event pairs, 1386 based on Foata normal form. 5315/80800 useless extension candidates. Maximal degree in co-relation 302471. Up to 38686 conditions per place. [2023-12-09 15:40:04,678 INFO L140 encePairwiseOnDemand]: 130/140 looper letters, 5768 selfloop transitions, 1076 changer transitions 297/7829 dead transitions. [2023-12-09 15:40:04,679 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 7829 transitions, 173049 flow [2023-12-09 15:40:04,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-09 15:40:04,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-12-09 15:40:04,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 609 transitions. [2023-12-09 15:40:04,680 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.87 [2023-12-09 15:40:04,680 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 609 transitions. [2023-12-09 15:40:04,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 609 transitions. [2023-12-09 15:40:04,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:40:04,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 609 transitions. [2023-12-09 15:40:04,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 121.8) internal successors, (609), 5 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) [2023-12-09 15:40:04,682 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 140.0) internal successors, (840), 6 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:04,683 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 140.0) internal successors, (840), 6 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:04,683 INFO L308 CegarLoopForPetriNet]: 126 programPoint places, 71 predicate places. [2023-12-09 15:40:04,683 INFO L500 AbstractCegarLoop]: Abstraction has has 197 places, 7829 transitions, 173049 flow [2023-12-09 15:40:04,683 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 113.6) internal successors, (568), 5 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:04,683 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:40:04,683 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:40:04,683 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-09 15:40:04,684 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 15:40:04,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:40:04,684 INFO L85 PathProgramCache]: Analyzing trace with hash -349844270, now seen corresponding path program 5 times [2023-12-09 15:40:04,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:40:04,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3533873] [2023-12-09 15:40:04,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:40:04,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:40:04,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:40:04,948 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:40:04,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:40:04,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3533873] [2023-12-09 15:40:04,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3533873] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:40:04,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:40:04,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-09 15:40:04,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079328958] [2023-12-09 15:40:04,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:40:04,950 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-09 15:40:04,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:40:04,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-09 15:40:04,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-12-09 15:40:04,951 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 140 [2023-12-09 15:40:04,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 7829 transitions, 173049 flow. Second operand has 9 states, 9 states have (on average 91.11111111111111) internal successors, (820), 9 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:40:04,951 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:40:04,951 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 140 [2023-12-09 15:40:04,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2023-12-09 15:40:47,223 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-09 15:40:47,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-09 15:40:47,449 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-12-09 15:40:47,450 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-09 15:40:47,450 WARN L624 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (9states, 87/140 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 387609 conditions, 52530 events (28801/52529 cut-off events. For 623653/987103 co-relation queries the response was YES. Maximal size of possible extension queue 7497. Compared 612046 event pairs, 1328 based on Foata normal form. 2612/52576 useless extension candidates. Maximal degree in co-relation 382023. Up to 30620 conditions per place.). [2023-12-09 15:40:47,451 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2023-12-09 15:40:47,451 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-12-09 15:40:47,451 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-12-09 15:40:47,451 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-12-09 15:40:47,452 INFO L457 BasicCegarLoop]: Path program histogram: [5, 3, 1, 1, 1] [2023-12-09 15:40:47,454 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 15:40:47,454 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 15:40:47,457 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:40:47 BasicIcfg [2023-12-09 15:40:47,457 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 15:40:47,457 INFO L158 Benchmark]: Toolchain (without parser) took 247286.89ms. Allocated memory was 213.9MB in the beginning and 6.8GB in the end (delta: 6.6GB). Free memory was 161.8MB in the beginning and 3.8GB in the end (delta: -3.6GB). Peak memory consumption was 3.7GB. Max. memory is 8.0GB. [2023-12-09 15:40:47,457 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 213.9MB. Free memory is still 161.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 15:40:47,458 INFO L158 Benchmark]: CACSL2BoogieTranslator took 194.61ms. Allocated memory is still 213.9MB. Free memory was 161.5MB in the beginning and 149.6MB in the end (delta: 11.8MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-09 15:40:47,458 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.16ms. Allocated memory is still 213.9MB. Free memory was 149.6MB in the beginning and 147.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 15:40:47,458 INFO L158 Benchmark]: Boogie Preprocessor took 22.22ms. Allocated memory is still 213.9MB. Free memory was 147.9MB in the beginning and 146.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-09 15:40:47,458 INFO L158 Benchmark]: RCFGBuilder took 399.94ms. Allocated memory is still 213.9MB. Free memory was 146.0MB in the beginning and 175.2MB in the end (delta: -29.2MB). Peak memory consumption was 20.4MB. Max. memory is 8.0GB. [2023-12-09 15:40:47,458 INFO L158 Benchmark]: TraceAbstraction took 246642.78ms. Allocated memory was 213.9MB in the beginning and 6.8GB in the end (delta: 6.6GB). Free memory was 174.2MB in the beginning and 3.8GB in the end (delta: -3.6GB). Peak memory consumption was 3.7GB. Max. memory is 8.0GB. [2023-12-09 15:40:47,459 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 213.9MB. Free memory is still 161.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 194.61ms. Allocated memory is still 213.9MB. Free memory was 161.5MB in the beginning and 149.6MB in the end (delta: 11.8MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 22.16ms. Allocated memory is still 213.9MB. Free memory was 149.6MB in the beginning and 147.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 22.22ms. Allocated memory is still 213.9MB. Free memory was 147.9MB in the beginning and 146.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 399.94ms. Allocated memory is still 213.9MB. Free memory was 146.0MB in the beginning and 175.2MB in the end (delta: -29.2MB). Peak memory consumption was 20.4MB. Max. memory is 8.0GB. * TraceAbstraction took 246642.78ms. Allocated memory was 213.9MB in the beginning and 6.8GB in the end (delta: 6.6GB). Free memory was 174.2MB in the beginning and 3.8GB in the end (delta: -3.6GB). Peak memory consumption was 3.7GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 139]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (9states, 87/140 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 387609 conditions, 52530 events (28801/52529 cut-off events. For 623653/987103 co-relation queries the response was YES. Maximal size of possible extension queue 7497. Compared 612046 event pairs, 1328 based on Foata normal form. 2612/52576 useless extension candidates. Maximal degree in co-relation 382023. Up to 30620 conditions per place.). - TimeoutResultAtElement [Line: 132]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (9states, 87/140 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 387609 conditions, 52530 events (28801/52529 cut-off events. For 623653/987103 co-relation queries the response was YES. Maximal size of possible extension queue 7497. Compared 612046 event pairs, 1328 based on Foata normal form. 2612/52576 useless extension candidates. Maximal degree in co-relation 382023. Up to 30620 conditions per place.). - TimeoutResultAtElement [Line: 131]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (9states, 87/140 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 387609 conditions, 52530 events (28801/52529 cut-off events. For 623653/987103 co-relation queries the response was YES. Maximal size of possible extension queue 7497. Compared 612046 event pairs, 1328 based on Foata normal form. 2612/52576 useless extension candidates. Maximal degree in co-relation 382023. Up to 30620 conditions per place.). - TimeoutResultAtElement [Line: 129]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (9states, 87/140 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 387609 conditions, 52530 events (28801/52529 cut-off events. For 623653/987103 co-relation queries the response was YES. Maximal size of possible extension queue 7497. Compared 612046 event pairs, 1328 based on Foata normal form. 2612/52576 useless extension candidates. Maximal degree in co-relation 382023. Up to 30620 conditions per place.). - TimeoutResultAtElement [Line: 130]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (9states, 87/140 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 387609 conditions, 52530 events (28801/52529 cut-off events. For 623653/987103 co-relation queries the response was YES. Maximal size of possible extension queue 7497. Compared 612046 event pairs, 1328 based on Foata normal form. 2612/52576 useless extension candidates. Maximal degree in co-relation 382023. Up to 30620 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 167 locations, 5 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: 246.5s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 241.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 787 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 787 mSDsluCounter, 523 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 319 mSDsCounter, 94 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1908 IncrementalHoareTripleChecker+Invalid, 2002 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 94 mSolverCounterUnsat, 204 mSDtfsCounter, 1908 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 532 GetRequests, 429 SyntacticMatches, 4 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=188249occurred in iteration=9, InterpolantAutomatonStates: 81, 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: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 1375 NumberOfCodeBlocks, 1375 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1572 ConstructedInterpolants, 0 QuantifiedInterpolants, 6151 SizeOfPredicates, 14 NumberOfNonLiveVariables, 596 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 10/14 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown