/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/chl-sre-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 15:13:43,633 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 15:13:43,720 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 15:13:43,757 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 15:13:43,758 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 15:13:43,758 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 15:13:43,759 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 15:13:43,759 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 15:13:43,759 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 15:13:43,763 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 15:13:43,764 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 15:13:43,764 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 15:13:43,764 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 15:13:43,765 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 15:13:43,766 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 15:13:43,766 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 15:13:43,766 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 15:13:43,766 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 15:13:43,766 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 15:13:43,767 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 15:13:43,767 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 15:13:43,768 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 15:13:43,768 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 15:13:43,768 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 15:13:43,768 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 15:13:43,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:13:43,770 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 15:13:43,770 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 15:13:43,770 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 15:13:43,770 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 15:13:43,771 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 15:13:43,772 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 15:13:43,772 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 15:13:43,772 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 15:13:43,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 15:13:43,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 15:13:43,984 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 15:13:43,985 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 15:13:43,986 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 15:13:43,987 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c [2023-12-09 15:13:45,106 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 15:13:45,289 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 15:13:45,289 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c [2023-12-09 15:13:45,295 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db8949234/9eafe7e734674bbea65780db0c2a940b/FLAG40e90614b [2023-12-09 15:13:45,305 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db8949234/9eafe7e734674bbea65780db0c2a940b [2023-12-09 15:13:45,307 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 15:13:45,308 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 15:13:45,309 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 15:13:45,309 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 15:13:45,313 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 15:13:45,314 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:13:45" (1/1) ... [2023-12-09 15:13:45,315 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55a24c82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:13:45, skipping insertion in model container [2023-12-09 15:13:45,315 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:13:45" (1/1) ... [2023-12-09 15:13:45,333 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 15:13:45,493 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/chl-sre-subst.wvr.c[2372,2385] [2023-12-09 15:13:45,497 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:13:45,506 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 15:13:45,531 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/chl-sre-subst.wvr.c[2372,2385] [2023-12-09 15:13:45,533 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:13:45,544 INFO L206 MainTranslator]: Completed translation [2023-12-09 15:13:45,544 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:13:45 WrapperNode [2023-12-09 15:13:45,544 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 15:13:45,545 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 15:13:45,545 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 15:13:45,546 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 15:13:45,551 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:13:45" (1/1) ... [2023-12-09 15:13:45,557 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:13:45" (1/1) ... [2023-12-09 15:13:45,574 INFO L138 Inliner]: procedures = 22, calls = 26, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 76 [2023-12-09 15:13:45,575 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 15:13:45,575 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 15:13:45,576 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 15:13:45,576 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 15:13:45,583 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:13:45" (1/1) ... [2023-12-09 15:13:45,584 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:13:45" (1/1) ... [2023-12-09 15:13:45,586 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:13:45" (1/1) ... [2023-12-09 15:13:45,586 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:13:45" (1/1) ... [2023-12-09 15:13:45,595 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:13:45" (1/1) ... [2023-12-09 15:13:45,599 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:13:45" (1/1) ... [2023-12-09 15:13:45,600 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:13:45" (1/1) ... [2023-12-09 15:13:45,601 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:13:45" (1/1) ... [2023-12-09 15:13:45,603 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 15:13:45,604 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 15:13:45,604 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 15:13:45,604 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 15:13:45,605 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:13:45" (1/1) ... [2023-12-09 15:13:45,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:13:45,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:13:45,633 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 15:13:45,665 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 15:13:45,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 15:13:45,673 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-09 15:13:45,673 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-09 15:13:45,673 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-12-09 15:13:45,673 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-12-09 15:13:45,674 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-12-09 15:13:45,674 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-12-09 15:13:45,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 15:13:45,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 15:13:45,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 15:13:45,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 15:13:45,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 15:13:45,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-09 15:13:45,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 15:13:45,677 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 15:13:45,803 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 15:13:45,805 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 15:13:45,969 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 15:13:45,979 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 15:13:45,979 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-09 15:13:45,981 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:13:45 BoogieIcfgContainer [2023-12-09 15:13:45,981 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 15:13:45,983 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 15:13:45,983 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 15:13:45,986 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 15:13:45,986 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:13:45" (1/3) ... [2023-12-09 15:13:45,987 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70fc5331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:13:45, skipping insertion in model container [2023-12-09 15:13:45,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:13:45" (2/3) ... [2023-12-09 15:13:45,987 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70fc5331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:13:45, skipping insertion in model container [2023-12-09 15:13:45,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:13:45" (3/3) ... [2023-12-09 15:13:45,988 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-sre-subst.wvr.c [2023-12-09 15:13:46,005 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 15:13:46,005 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 15:13:46,005 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 15:13:46,077 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-12-09 15:13:46,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 96 transitions, 213 flow [2023-12-09 15:13:46,173 INFO L124 PetriNetUnfolderBase]: 2/93 cut-off events. [2023-12-09 15:13:46,174 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-12-09 15:13:46,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 93 events. 2/93 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 28 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2023-12-09 15:13:46,183 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 96 transitions, 213 flow [2023-12-09 15:13:46,186 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 82 transitions, 182 flow [2023-12-09 15:13:46,194 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 15:13:46,203 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;@3963fc34, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 15:13:46,203 INFO L363 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-12-09 15:13:46,229 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 15:13:46,229 INFO L124 PetriNetUnfolderBase]: 2/81 cut-off events. [2023-12-09 15:13:46,229 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-12-09 15:13:46,229 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:46,230 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] [2023-12-09 15:13:46,231 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 1 more)] === [2023-12-09 15:13:46,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:46,235 INFO L85 PathProgramCache]: Analyzing trace with hash 360440589, now seen corresponding path program 1 times [2023-12-09 15:13:46,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:46,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14623939] [2023-12-09 15:13:46,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:46,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:46,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:49,163 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 15:13:49,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:49,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14623939] [2023-12-09 15:13:49,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14623939] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:49,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:49,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:49,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929969225] [2023-12-09 15:13:49,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:49,179 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:49,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:49,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:49,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:49,218 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 96 [2023-12-09 15:13:49,226 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 82 transitions, 182 flow. Second operand has 10 states, 10 states have (on average 64.0) internal successors, (640), 10 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:49,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:49,227 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 96 [2023-12-09 15:13:49,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:50,587 INFO L124 PetriNetUnfolderBase]: 13/180 cut-off events. [2023-12-09 15:13:50,587 INFO L125 PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES. [2023-12-09 15:13:50,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 303 conditions, 180 events. 13/180 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 481 event pairs, 7 based on Foata normal form. 6/177 useless extension candidates. Maximal degree in co-relation 125. Up to 30 conditions per place. [2023-12-09 15:13:50,590 INFO L140 encePairwiseOnDemand]: 83/96 looper letters, 47 selfloop transitions, 2 changer transitions 19/116 dead transitions. [2023-12-09 15:13:50,591 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 116 transitions, 410 flow [2023-12-09 15:13:50,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 15:13:50,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 15:13:50,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 868 transitions. [2023-12-09 15:13:50,606 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6955128205128205 [2023-12-09 15:13:50,606 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 868 transitions. [2023-12-09 15:13:50,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 868 transitions. [2023-12-09 15:13:50,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:50,611 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 868 transitions. [2023-12-09 15:13:50,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 66.76923076923077) internal successors, (868), 13 states have internal predecessors, (868), 0 states have call successors, (0), 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 15:13:50,624 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 96.0) internal successors, (1344), 14 states have internal predecessors, (1344), 0 states have call successors, (0), 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 15:13:50,624 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 96.0) internal successors, (1344), 14 states have internal predecessors, (1344), 0 states have call successors, (0), 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 15:13:50,628 INFO L308 CegarLoopForPetriNet]: 90 programPoint places, 12 predicate places. [2023-12-09 15:13:50,628 INFO L500 AbstractCegarLoop]: Abstraction has has 102 places, 116 transitions, 410 flow [2023-12-09 15:13:50,629 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 64.0) internal successors, (640), 10 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:50,629 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:50,629 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] [2023-12-09 15:13:50,630 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 15:13:50,630 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 1 more)] === [2023-12-09 15:13:50,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:50,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1172807019, now seen corresponding path program 2 times [2023-12-09 15:13:50,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:50,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789873744] [2023-12-09 15:13:50,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:50,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:50,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:52,437 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 15:13:52,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:52,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789873744] [2023-12-09 15:13:52,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789873744] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:52,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:52,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:52,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059721545] [2023-12-09 15:13:52,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:52,440 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:52,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:52,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:52,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:52,443 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 96 [2023-12-09 15:13:52,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 116 transitions, 410 flow. Second operand has 10 states, 10 states have (on average 64.0) internal successors, (640), 10 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:52,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:52,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 96 [2023-12-09 15:13:52,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:53,274 INFO L124 PetriNetUnfolderBase]: 14/223 cut-off events. [2023-12-09 15:13:53,275 INFO L125 PetriNetUnfolderBase]: For 137/155 co-relation queries the response was YES. [2023-12-09 15:13:53,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 485 conditions, 223 events. 14/223 cut-off events. For 137/155 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 744 event pairs, 1 based on Foata normal form. 1/217 useless extension candidates. Maximal degree in co-relation 150. Up to 47 conditions per place. [2023-12-09 15:13:53,277 INFO L140 encePairwiseOnDemand]: 85/96 looper letters, 49 selfloop transitions, 3 changer transitions 39/139 dead transitions. [2023-12-09 15:13:53,277 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 139 transitions, 708 flow [2023-12-09 15:13:53,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 15:13:53,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 15:13:53,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 863 transitions. [2023-12-09 15:13:53,295 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6915064102564102 [2023-12-09 15:13:53,295 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 863 transitions. [2023-12-09 15:13:53,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 863 transitions. [2023-12-09 15:13:53,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:53,296 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 863 transitions. [2023-12-09 15:13:53,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 66.38461538461539) internal successors, (863), 13 states have internal predecessors, (863), 0 states have call successors, (0), 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 15:13:53,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 96.0) internal successors, (1344), 14 states have internal predecessors, (1344), 0 states have call successors, (0), 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 15:13:53,302 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 96.0) internal successors, (1344), 14 states have internal predecessors, (1344), 0 states have call successors, (0), 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 15:13:53,305 INFO L308 CegarLoopForPetriNet]: 90 programPoint places, 24 predicate places. [2023-12-09 15:13:53,305 INFO L500 AbstractCegarLoop]: Abstraction has has 114 places, 139 transitions, 708 flow [2023-12-09 15:13:53,306 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 64.0) internal successors, (640), 10 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:53,306 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:53,307 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] [2023-12-09 15:13:53,307 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 15:13:53,307 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 1 more)] === [2023-12-09 15:13:53,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:53,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1164978029, now seen corresponding path program 3 times [2023-12-09 15:13:53,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:53,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713258950] [2023-12-09 15:13:53,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:53,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:53,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:54,825 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 15:13:54,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:54,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713258950] [2023-12-09 15:13:54,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713258950] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:54,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:54,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:54,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209749022] [2023-12-09 15:13:54,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:54,827 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:54,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:54,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:54,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:54,829 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 96 [2023-12-09 15:13:54,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 139 transitions, 708 flow. Second operand has 10 states, 10 states have (on average 64.0) internal successors, (640), 10 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:54,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:54,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 96 [2023-12-09 15:13:54,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:55,660 INFO L124 PetriNetUnfolderBase]: 13/268 cut-off events. [2023-12-09 15:13:55,660 INFO L125 PetriNetUnfolderBase]: For 290/340 co-relation queries the response was YES. [2023-12-09 15:13:55,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 751 conditions, 268 events. 13/268 cut-off events. For 290/340 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1137 event pairs, 1 based on Foata normal form. 7/264 useless extension candidates. Maximal degree in co-relation 261. Up to 65 conditions per place. [2023-12-09 15:13:55,664 INFO L140 encePairwiseOnDemand]: 85/96 looper letters, 63 selfloop transitions, 3 changer transitions 57/171 dead transitions. [2023-12-09 15:13:55,664 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 171 transitions, 1164 flow [2023-12-09 15:13:55,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 15:13:55,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 15:13:55,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 862 transitions. [2023-12-09 15:13:55,667 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6907051282051282 [2023-12-09 15:13:55,667 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 862 transitions. [2023-12-09 15:13:55,667 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 862 transitions. [2023-12-09 15:13:55,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:55,668 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 862 transitions. [2023-12-09 15:13:55,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 66.3076923076923) internal successors, (862), 13 states have internal predecessors, (862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:55,672 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 96.0) internal successors, (1344), 14 states have internal predecessors, (1344), 0 states have call successors, (0), 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 15:13:55,672 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 96.0) internal successors, (1344), 14 states have internal predecessors, (1344), 0 states have call successors, (0), 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 15:13:55,673 INFO L308 CegarLoopForPetriNet]: 90 programPoint places, 36 predicate places. [2023-12-09 15:13:55,674 INFO L500 AbstractCegarLoop]: Abstraction has has 126 places, 171 transitions, 1164 flow [2023-12-09 15:13:55,674 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 64.0) internal successors, (640), 10 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:55,674 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:55,675 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] [2023-12-09 15:13:55,675 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-09 15:13:55,675 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 1 more)] === [2023-12-09 15:13:55,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:55,676 INFO L85 PathProgramCache]: Analyzing trace with hash -281063767, now seen corresponding path program 4 times [2023-12-09 15:13:55,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:55,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345993191] [2023-12-09 15:13:55,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:55,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:55,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:57,246 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 15:13:57,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:57,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345993191] [2023-12-09 15:13:57,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345993191] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:57,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:57,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:57,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747719131] [2023-12-09 15:13:57,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:57,251 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:57,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:57,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:57,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:57,256 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 96 [2023-12-09 15:13:57,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 171 transitions, 1164 flow. Second operand has 10 states, 10 states have (on average 64.0) internal successors, (640), 10 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:57,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:57,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 96 [2023-12-09 15:13:57,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:13:58,169 INFO L124 PetriNetUnfolderBase]: 13/264 cut-off events. [2023-12-09 15:13:58,170 INFO L125 PetriNetUnfolderBase]: For 455/526 co-relation queries the response was YES. [2023-12-09 15:13:58,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 881 conditions, 264 events. 13/264 cut-off events. For 455/526 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1115 event pairs, 0 based on Foata normal form. 8/264 useless extension candidates. Maximal degree in co-relation 303. Up to 65 conditions per place. [2023-12-09 15:13:58,171 INFO L140 encePairwiseOnDemand]: 85/96 looper letters, 47 selfloop transitions, 3 changer transitions 79/177 dead transitions. [2023-12-09 15:13:58,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 177 transitions, 1485 flow [2023-12-09 15:13:58,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 15:13:58,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 15:13:58,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 863 transitions. [2023-12-09 15:13:58,175 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6915064102564102 [2023-12-09 15:13:58,175 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 863 transitions. [2023-12-09 15:13:58,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 863 transitions. [2023-12-09 15:13:58,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:13:58,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 863 transitions. [2023-12-09 15:13:58,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 66.38461538461539) internal successors, (863), 13 states have internal predecessors, (863), 0 states have call successors, (0), 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 15:13:58,181 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 96.0) internal successors, (1344), 14 states have internal predecessors, (1344), 0 states have call successors, (0), 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 15:13:58,183 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 96.0) internal successors, (1344), 14 states have internal predecessors, (1344), 0 states have call successors, (0), 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 15:13:58,185 INFO L308 CegarLoopForPetriNet]: 90 programPoint places, 48 predicate places. [2023-12-09 15:13:58,186 INFO L500 AbstractCegarLoop]: Abstraction has has 138 places, 177 transitions, 1485 flow [2023-12-09 15:13:58,187 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 64.0) internal successors, (640), 10 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:58,187 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:13:58,187 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] [2023-12-09 15:13:58,187 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-09 15:13:58,187 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 1 more)] === [2023-12-09 15:13:58,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:13:58,188 INFO L85 PathProgramCache]: Analyzing trace with hash 2090813867, now seen corresponding path program 5 times [2023-12-09 15:13:58,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:13:58,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301857466] [2023-12-09 15:13:58,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:13:58,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:13:58,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:13:59,754 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 15:13:59,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:13:59,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301857466] [2023-12-09 15:13:59,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301857466] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:13:59,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:13:59,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:13:59,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238100286] [2023-12-09 15:13:59,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:13:59,756 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:13:59,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:13:59,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:13:59,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:13:59,758 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 96 [2023-12-09 15:13:59,759 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 177 transitions, 1485 flow. Second operand has 10 states, 10 states have (on average 64.0) internal successors, (640), 10 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:13:59,759 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:13:59,759 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 96 [2023-12-09 15:13:59,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:14:01,003 INFO L124 PetriNetUnfolderBase]: 13/264 cut-off events. [2023-12-09 15:14:01,003 INFO L125 PetriNetUnfolderBase]: For 755/854 co-relation queries the response was YES. [2023-12-09 15:14:01,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1009 conditions, 264 events. 13/264 cut-off events. For 755/854 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1089 event pairs, 0 based on Foata normal form. 11/268 useless extension candidates. Maximal degree in co-relation 342. Up to 62 conditions per place. [2023-12-09 15:14:01,005 INFO L140 encePairwiseOnDemand]: 85/96 looper letters, 30 selfloop transitions, 1 changer transitions 95/174 dead transitions. [2023-12-09 15:14:01,005 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 174 transitions, 1707 flow [2023-12-09 15:14:01,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 15:14:01,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 15:14:01,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 859 transitions. [2023-12-09 15:14:01,008 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.688301282051282 [2023-12-09 15:14:01,008 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 859 transitions. [2023-12-09 15:14:01,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 859 transitions. [2023-12-09 15:14:01,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:14:01,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 859 transitions. [2023-12-09 15:14:01,010 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 66.07692307692308) internal successors, (859), 13 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:01,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 96.0) internal successors, (1344), 14 states have internal predecessors, (1344), 0 states have call successors, (0), 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 15:14:01,013 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 96.0) internal successors, (1344), 14 states have internal predecessors, (1344), 0 states have call successors, (0), 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 15:14:01,013 INFO L308 CegarLoopForPetriNet]: 90 programPoint places, 60 predicate places. [2023-12-09 15:14:01,014 INFO L500 AbstractCegarLoop]: Abstraction has has 150 places, 174 transitions, 1707 flow [2023-12-09 15:14:01,014 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 64.0) internal successors, (640), 10 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:01,014 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:14:01,014 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] [2023-12-09 15:14:01,014 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-09 15:14:01,015 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 1 more)] === [2023-12-09 15:14:01,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:14:01,015 INFO L85 PathProgramCache]: Analyzing trace with hash -40053013, now seen corresponding path program 6 times [2023-12-09 15:14:01,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:14:01,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276017814] [2023-12-09 15:14:01,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:14:01,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:14:01,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:14:02,468 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 15:14:02,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:14:02,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276017814] [2023-12-09 15:14:02,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276017814] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:14:02,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:14:02,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-09 15:14:02,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515504446] [2023-12-09 15:14:02,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:14:02,476 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-09 15:14:02,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:14:02,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-09 15:14:02,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-12-09 15:14:02,478 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 96 [2023-12-09 15:14:02,478 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 174 transitions, 1707 flow. Second operand has 10 states, 10 states have (on average 64.0) internal successors, (640), 10 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:02,478 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:14:02,479 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 96 [2023-12-09 15:14:02,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:14:03,383 INFO L124 PetriNetUnfolderBase]: 13/262 cut-off events. [2023-12-09 15:14:03,383 INFO L125 PetriNetUnfolderBase]: For 1099/1250 co-relation queries the response was YES. [2023-12-09 15:14:03,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1129 conditions, 262 events. 13/262 cut-off events. For 1099/1250 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1094 event pairs, 0 based on Foata normal form. 10/266 useless extension candidates. Maximal degree in co-relation 385. Up to 59 conditions per place. [2023-12-09 15:14:03,385 INFO L140 encePairwiseOnDemand]: 85/96 looper letters, 0 selfloop transitions, 0 changer transitions 170/170 dead transitions. [2023-12-09 15:14:03,385 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 170 transitions, 1915 flow [2023-12-09 15:14:03,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 15:14:03,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 15:14:03,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 856 transitions. [2023-12-09 15:14:03,388 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6858974358974359 [2023-12-09 15:14:03,388 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 856 transitions. [2023-12-09 15:14:03,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 856 transitions. [2023-12-09 15:14:03,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:14:03,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 856 transitions. [2023-12-09 15:14:03,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 65.84615384615384) internal successors, (856), 13 states have internal predecessors, (856), 0 states have call successors, (0), 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 15:14:03,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 96.0) internal successors, (1344), 14 states have internal predecessors, (1344), 0 states have call successors, (0), 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 15:14:03,393 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 96.0) internal successors, (1344), 14 states have internal predecessors, (1344), 0 states have call successors, (0), 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 15:14:03,395 INFO L308 CegarLoopForPetriNet]: 90 programPoint places, 68 predicate places. [2023-12-09 15:14:03,395 INFO L500 AbstractCegarLoop]: Abstraction has has 158 places, 170 transitions, 1915 flow [2023-12-09 15:14:03,395 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 64.0) internal successors, (640), 10 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:03,404 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/chl-sre-subst.wvr.c_BEv2_AllErrorsAtOnce [2023-12-09 15:14:03,489 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-12-09 15:14:03,489 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-12-09 15:14:03,489 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-12-09 15:14:03,490 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-12-09 15:14:03,490 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-09 15:14:03,490 INFO L457 BasicCegarLoop]: Path program histogram: [6] [2023-12-09 15:14:03,493 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 15:14:03,493 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 15:14:03,498 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:14:03 BasicIcfg [2023-12-09 15:14:03,498 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 15:14:03,503 INFO L158 Benchmark]: Toolchain (without parser) took 18190.30ms. Allocated memory was 188.7MB in the beginning and 676.3MB in the end (delta: 487.6MB). Free memory was 144.6MB in the beginning and 300.4MB in the end (delta: -155.8MB). Peak memory consumption was 331.1MB. Max. memory is 8.0GB. [2023-12-09 15:14:03,503 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 188.7MB. Free memory is still 146.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 15:14:03,503 INFO L158 Benchmark]: CACSL2BoogieTranslator took 235.43ms. Allocated memory is still 188.7MB. Free memory was 144.6MB in the beginning and 133.5MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-09 15:14:03,503 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.51ms. Allocated memory is still 188.7MB. Free memory was 133.5MB in the beginning and 131.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 15:14:03,504 INFO L158 Benchmark]: Boogie Preprocessor took 27.79ms. Allocated memory is still 188.7MB. Free memory was 131.6MB in the beginning and 130.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-09 15:14:03,504 INFO L158 Benchmark]: RCFGBuilder took 377.12ms. Allocated memory is still 188.7MB. Free memory was 130.3MB in the beginning and 116.8MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-09 15:14:03,504 INFO L158 Benchmark]: TraceAbstraction took 17515.20ms. Allocated memory was 188.7MB in the beginning and 676.3MB in the end (delta: 487.6MB). Free memory was 115.9MB in the beginning and 300.4MB in the end (delta: -184.5MB). Peak memory consumption was 302.8MB. Max. memory is 8.0GB. [2023-12-09 15:14:03,505 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 188.7MB. Free memory is still 146.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 235.43ms. Allocated memory is still 188.7MB. Free memory was 144.6MB in the beginning and 133.5MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 29.51ms. Allocated memory is still 188.7MB. Free memory was 133.5MB in the beginning and 131.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.79ms. Allocated memory is still 188.7MB. Free memory was 131.6MB in the beginning and 130.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 377.12ms. Allocated memory is still 188.7MB. Free memory was 130.3MB in the beginning and 116.8MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 17515.20ms. Allocated memory was 188.7MB in the beginning and 676.3MB in the end (delta: 487.6MB). Free memory was 115.9MB in the beginning and 300.4MB in the end (delta: -184.5MB). Peak memory consumption was 302.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 77]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 113 locations, 4 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: 17.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 6.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 380 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 380 mSDsluCounter, 864 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 682 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1192 IncrementalHoareTripleChecker+Invalid, 1213 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 182 mSDtfsCounter, 1192 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 5.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1915occurred in iteration=6, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 10.3s InterpolantComputationTime, 468 NumberOfCodeBlocks, 468 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 462 ConstructedInterpolants, 0 QuantifiedInterpolants, 9202 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-12-09 15:14:03,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...