/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/unroll-3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 15:36:56,629 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 15:36:56,697 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 15:36:56,721 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 15:36:56,722 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 15:36:56,723 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 15:36:56,723 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 15:36:56,723 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 15:36:56,723 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 15:36:56,726 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 15:36:56,727 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 15:36:56,727 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 15:36:56,727 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 15:36:56,728 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 15:36:56,728 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 15:36:56,728 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 15:36:56,729 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 15:36:56,729 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 15:36:56,729 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 15:36:56,729 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 15:36:56,729 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 15:36:56,730 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 15:36:56,730 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 15:36:56,730 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 15:36:56,730 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 15:36:56,730 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:36:56,730 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 15:36:56,731 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 15:36:56,731 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 15:36:56,731 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 15:36:56,732 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 15:36:56,732 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 15:36:56,732 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 15:36:56,732 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 15:36:56,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 15:36:56,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 15:36:56,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 15:36:56,949 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 15:36:56,951 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 15:36:56,951 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/unroll-3.wvr.c [2023-12-09 15:36:57,862 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 15:36:58,023 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 15:36:58,024 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-3.wvr.c [2023-12-09 15:36:58,028 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28a36faa1/473de4a69f4246378aa078f821b7d824/FLAG3c90fd654 [2023-12-09 15:36:58,037 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28a36faa1/473de4a69f4246378aa078f821b7d824 [2023-12-09 15:36:58,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 15:36:58,039 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 15:36:58,040 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 15:36:58,040 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 15:36:58,043 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 15:36:58,043 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:36:58" (1/1) ... [2023-12-09 15:36:58,044 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ea46f5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:58, skipping insertion in model container [2023-12-09 15:36:58,044 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:36:58" (1/1) ... [2023-12-09 15:36:58,059 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 15:36:58,236 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/unroll-3.wvr.c[2526,2539] [2023-12-09 15:36:58,246 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:36:58,253 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 15:36:58,284 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/unroll-3.wvr.c[2526,2539] [2023-12-09 15:36:58,287 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:36:58,298 INFO L206 MainTranslator]: Completed translation [2023-12-09 15:36:58,299 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:58 WrapperNode [2023-12-09 15:36:58,299 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 15:36:58,300 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 15:36:58,300 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 15:36:58,300 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 15:36:58,305 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:58" (1/1) ... [2023-12-09 15:36:58,318 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:58" (1/1) ... [2023-12-09 15:36:58,343 INFO L138 Inliner]: procedures = 24, calls = 34, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 149 [2023-12-09 15:36:58,343 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 15:36:58,344 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 15:36:58,344 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 15:36:58,345 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 15:36:58,351 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:58" (1/1) ... [2023-12-09 15:36:58,352 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:58" (1/1) ... [2023-12-09 15:36:58,354 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:58" (1/1) ... [2023-12-09 15:36:58,354 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:58" (1/1) ... [2023-12-09 15:36:58,363 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:58" (1/1) ... [2023-12-09 15:36:58,365 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:58" (1/1) ... [2023-12-09 15:36:58,366 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:58" (1/1) ... [2023-12-09 15:36:58,367 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:58" (1/1) ... [2023-12-09 15:36:58,368 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 15:36:58,369 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 15:36:58,369 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 15:36:58,369 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 15:36:58,370 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:58" (1/1) ... [2023-12-09 15:36:58,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:36:58,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:36:58,401 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 15:36:58,421 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 15:36:58,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 15:36:58,430 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-09 15:36:58,430 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-09 15:36:58,430 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-12-09 15:36:58,431 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-12-09 15:36:58,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 15:36:58,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 15:36:58,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 15:36:58,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-09 15:36:58,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 15:36:58,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 15:36:58,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-09 15:36:58,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 15:36:58,432 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 15:36:58,502 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 15:36:58,504 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 15:36:58,731 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 15:36:58,740 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 15:36:58,740 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-12-09 15:36:58,741 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:36:58 BoogieIcfgContainer [2023-12-09 15:36:58,741 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 15:36:58,743 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 15:36:58,743 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 15:36:58,745 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 15:36:58,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:36:58" (1/3) ... [2023-12-09 15:36:58,746 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76e46420 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:36:58, skipping insertion in model container [2023-12-09 15:36:58,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:58" (2/3) ... [2023-12-09 15:36:58,746 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76e46420 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:36:58, skipping insertion in model container [2023-12-09 15:36:58,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:36:58" (3/3) ... [2023-12-09 15:36:58,747 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-3.wvr.c [2023-12-09 15:36:58,758 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 15:36:58,758 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 15:36:58,758 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 15:36:58,821 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-12-09 15:36:58,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 179 places, 187 transitions, 388 flow [2023-12-09 15:36:58,937 INFO L124 PetriNetUnfolderBase]: 15/185 cut-off events. [2023-12-09 15:36:58,937 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-12-09 15:36:58,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 185 events. 15/185 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 181 event pairs, 0 based on Foata normal form. 0/169 useless extension candidates. Maximal degree in co-relation 111. Up to 2 conditions per place. [2023-12-09 15:36:58,942 INFO L82 GeneralOperation]: Start removeDead. Operand has 179 places, 187 transitions, 388 flow [2023-12-09 15:36:58,945 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 168 places, 176 transitions, 364 flow [2023-12-09 15:36:58,955 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 15:36:58,959 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;@64227c16, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 15:36:58,959 INFO L363 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-12-09 15:36:59,004 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 15:36:59,005 INFO L124 PetriNetUnfolderBase]: 13/158 cut-off events. [2023-12-09 15:36:59,005 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-12-09 15:36:59,005 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:36:59,005 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] [2023-12-09 15:36:59,006 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:36:59,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:36:59,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1499906581, now seen corresponding path program 1 times [2023-12-09 15:36:59,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:36:59,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871354934] [2023-12-09 15:36:59,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:36:59,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:36:59,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:36:59,424 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 15:36:59,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:36:59,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871354934] [2023-12-09 15:36:59,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871354934] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:36:59,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:36:59,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 15:36:59,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516636203] [2023-12-09 15:36:59,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:36:59,432 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 15:36:59,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:36:59,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 15:36:59,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-09 15:36:59,453 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 187 [2023-12-09 15:36:59,457 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 176 transitions, 364 flow. Second operand has 8 states, 8 states have (on average 121.625) internal successors, (973), 8 states have internal predecessors, (973), 0 states have call successors, (0), 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 15:36:59,458 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:36:59,458 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 187 [2023-12-09 15:36:59,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:36:59,629 INFO L124 PetriNetUnfolderBase]: 20/299 cut-off events. [2023-12-09 15:36:59,629 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2023-12-09 15:36:59,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 405 conditions, 299 events. 20/299 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 686 event pairs, 7 based on Foata normal form. 32/304 useless extension candidates. Maximal degree in co-relation 217. Up to 50 conditions per place. [2023-12-09 15:36:59,635 INFO L140 encePairwiseOnDemand]: 165/187 looper letters, 48 selfloop transitions, 9 changer transitions 5/168 dead transitions. [2023-12-09 15:36:59,636 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 168 transitions, 472 flow [2023-12-09 15:36:59,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-09 15:36:59,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-12-09 15:36:59,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1004 transitions. [2023-12-09 15:36:59,655 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6711229946524064 [2023-12-09 15:36:59,655 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1004 transitions. [2023-12-09 15:36:59,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1004 transitions. [2023-12-09 15:36:59,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:36:59,660 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1004 transitions. [2023-12-09 15:36:59,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 125.5) internal successors, (1004), 8 states have internal predecessors, (1004), 0 states have call successors, (0), 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 15:36:59,669 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 187.0) internal successors, (1683), 9 states have internal predecessors, (1683), 0 states have call successors, (0), 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 15:36:59,669 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 187.0) internal successors, (1683), 9 states have internal predecessors, (1683), 0 states have call successors, (0), 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 15:36:59,673 INFO L308 CegarLoopForPetriNet]: 168 programPoint places, 7 predicate places. [2023-12-09 15:36:59,673 INFO L500 AbstractCegarLoop]: Abstraction has has 175 places, 168 transitions, 472 flow [2023-12-09 15:36:59,674 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 121.625) internal successors, (973), 8 states have internal predecessors, (973), 0 states have call successors, (0), 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 15:36:59,674 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:36:59,674 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] [2023-12-09 15:36:59,674 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 15:36:59,674 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:36:59,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:36:59,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1098094375, now seen corresponding path program 1 times [2023-12-09 15:36:59,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:36:59,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941053522] [2023-12-09 15:36:59,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:36:59,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:36:59,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:36:59,954 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:36:59,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:36:59,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941053522] [2023-12-09 15:36:59,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941053522] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:36:59,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:36:59,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 15:36:59,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008164470] [2023-12-09 15:36:59,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:36:59,959 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 15:36:59,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:36:59,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 15:36:59,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-09 15:36:59,963 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 187 [2023-12-09 15:36:59,964 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 168 transitions, 472 flow. Second operand has 6 states, 6 states have (on average 127.0) internal successors, (762), 6 states have internal predecessors, (762), 0 states have call successors, (0), 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 15:36:59,964 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:36:59,964 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 187 [2023-12-09 15:36:59,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:37:00,167 INFO L124 PetriNetUnfolderBase]: 97/668 cut-off events. [2023-12-09 15:37:00,167 INFO L125 PetriNetUnfolderBase]: For 210/215 co-relation queries the response was YES. [2023-12-09 15:37:00,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1108 conditions, 668 events. 97/668 cut-off events. For 210/215 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 3432 event pairs, 29 based on Foata normal form. 0/611 useless extension candidates. Maximal degree in co-relation 793. Up to 118 conditions per place. [2023-12-09 15:37:00,171 INFO L140 encePairwiseOnDemand]: 175/187 looper letters, 71 selfloop transitions, 5 changer transitions 11/202 dead transitions. [2023-12-09 15:37:00,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 202 transitions, 773 flow [2023-12-09 15:37:00,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-09 15:37:00,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-12-09 15:37:00,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1177 transitions. [2023-12-09 15:37:00,174 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6993464052287581 [2023-12-09 15:37:00,174 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1177 transitions. [2023-12-09 15:37:00,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1177 transitions. [2023-12-09 15:37:00,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:37:00,175 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1177 transitions. [2023-12-09 15:37:00,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 130.77777777777777) internal successors, (1177), 9 states have internal predecessors, (1177), 0 states have call successors, (0), 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 15:37:00,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 187.0) internal successors, (1870), 10 states have internal predecessors, (1870), 0 states have call successors, (0), 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 15:37:00,180 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 187.0) internal successors, (1870), 10 states have internal predecessors, (1870), 0 states have call successors, (0), 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 15:37:00,181 INFO L308 CegarLoopForPetriNet]: 168 programPoint places, 15 predicate places. [2023-12-09 15:37:00,181 INFO L500 AbstractCegarLoop]: Abstraction has has 183 places, 202 transitions, 773 flow [2023-12-09 15:37:00,181 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 127.0) internal successors, (762), 6 states have internal predecessors, (762), 0 states have call successors, (0), 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 15:37:00,181 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:37:00,182 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:37:00,182 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 15:37:00,183 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:37:00,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:37:00,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1598442881, now seen corresponding path program 1 times [2023-12-09 15:37:00,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:37:00,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696574082] [2023-12-09 15:37:00,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:37:00,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:37:00,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:37:00,402 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:37:00,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:37:00,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696574082] [2023-12-09 15:37:00,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696574082] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:37:00,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [266196085] [2023-12-09 15:37:00,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:37:00,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:37:00,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:37:00,406 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 15:37:00,438 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 15:37:00,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:37:00,496 INFO L262 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-09 15:37:00,501 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:37:00,607 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:37:00,607 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:37:00,700 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:37:00,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [266196085] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-09 15:37:00,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-09 15:37:00,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 7 [2023-12-09 15:37:00,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371046000] [2023-12-09 15:37:00,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:37:00,708 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-09 15:37:00,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:37:00,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-09 15:37:00,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-09 15:37:00,710 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 187 [2023-12-09 15:37:00,711 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 202 transitions, 773 flow. Second operand has 4 states, 4 states have (on average 158.75) internal successors, (635), 4 states have internal predecessors, (635), 0 states have call successors, (0), 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 15:37:00,711 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:37:00,711 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 187 [2023-12-09 15:37:00,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:37:00,855 INFO L124 PetriNetUnfolderBase]: 176/989 cut-off events. [2023-12-09 15:37:00,855 INFO L125 PetriNetUnfolderBase]: For 571/579 co-relation queries the response was YES. [2023-12-09 15:37:00,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1799 conditions, 989 events. 176/989 cut-off events. For 571/579 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 6049 event pairs, 42 based on Foata normal form. 0/882 useless extension candidates. Maximal degree in co-relation 1176. Up to 158 conditions per place. [2023-12-09 15:37:00,859 INFO L140 encePairwiseOnDemand]: 182/187 looper letters, 29 selfloop transitions, 5 changer transitions 11/214 dead transitions. [2023-12-09 15:37:00,860 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 214 transitions, 895 flow [2023-12-09 15:37:00,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-09 15:37:00,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-12-09 15:37:00,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 655 transitions. [2023-12-09 15:37:00,861 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8756684491978609 [2023-12-09 15:37:00,861 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 655 transitions. [2023-12-09 15:37:00,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 655 transitions. [2023-12-09 15:37:00,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:37:00,862 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 655 transitions. [2023-12-09 15:37:00,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 163.75) internal successors, (655), 4 states have internal predecessors, (655), 0 states have call successors, (0), 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 15:37:00,864 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 187.0) internal successors, (935), 5 states have internal predecessors, (935), 0 states have call successors, (0), 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 15:37:00,864 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 187.0) internal successors, (935), 5 states have internal predecessors, (935), 0 states have call successors, (0), 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 15:37:00,865 INFO L308 CegarLoopForPetriNet]: 168 programPoint places, 18 predicate places. [2023-12-09 15:37:00,865 INFO L500 AbstractCegarLoop]: Abstraction has has 186 places, 214 transitions, 895 flow [2023-12-09 15:37:00,865 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 158.75) internal successors, (635), 4 states have internal predecessors, (635), 0 states have call successors, (0), 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 15:37:00,865 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:37:00,865 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:37:00,873 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-09 15:37:01,070 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:37:01,071 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:37:01,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:37:01,072 INFO L85 PathProgramCache]: Analyzing trace with hash -617538153, now seen corresponding path program 2 times [2023-12-09 15:37:01,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:37:01,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681213352] [2023-12-09 15:37:01,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:37:01,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:37:01,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:37:01,181 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:37:01,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:37:01,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681213352] [2023-12-09 15:37:01,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681213352] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:37:01,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:37:01,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-09 15:37:01,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500152437] [2023-12-09 15:37:01,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:37:01,183 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-09 15:37:01,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:37:01,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-09 15:37:01,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-09 15:37:01,185 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 187 [2023-12-09 15:37:01,186 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 214 transitions, 895 flow. Second operand has 4 states, 4 states have (on average 158.75) internal successors, (635), 4 states have internal predecessors, (635), 0 states have call successors, (0), 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 15:37:01,186 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:37:01,186 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 187 [2023-12-09 15:37:01,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:37:01,355 INFO L124 PetriNetUnfolderBase]: 201/1117 cut-off events. [2023-12-09 15:37:01,356 INFO L125 PetriNetUnfolderBase]: For 940/968 co-relation queries the response was YES. [2023-12-09 15:37:01,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2330 conditions, 1117 events. 201/1117 cut-off events. For 940/968 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6812 event pairs, 45 based on Foata normal form. 2/1000 useless extension candidates. Maximal degree in co-relation 1525. Up to 200 conditions per place. [2023-12-09 15:37:01,361 INFO L140 encePairwiseOnDemand]: 181/187 looper letters, 44 selfloop transitions, 6 changer transitions 14/233 dead transitions. [2023-12-09 15:37:01,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 233 transitions, 1128 flow [2023-12-09 15:37:01,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-09 15:37:01,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-12-09 15:37:01,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 809 transitions. [2023-12-09 15:37:01,364 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8652406417112299 [2023-12-09 15:37:01,364 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 809 transitions. [2023-12-09 15:37:01,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 809 transitions. [2023-12-09 15:37:01,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:37:01,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 809 transitions. [2023-12-09 15:37:01,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 161.8) internal successors, (809), 5 states have internal predecessors, (809), 0 states have call successors, (0), 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 15:37:01,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 187.0) internal successors, (1122), 6 states have internal predecessors, (1122), 0 states have call successors, (0), 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 15:37:01,367 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 187.0) internal successors, (1122), 6 states have internal predecessors, (1122), 0 states have call successors, (0), 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 15:37:01,369 INFO L308 CegarLoopForPetriNet]: 168 programPoint places, 22 predicate places. [2023-12-09 15:37:01,369 INFO L500 AbstractCegarLoop]: Abstraction has has 190 places, 233 transitions, 1128 flow [2023-12-09 15:37:01,369 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 158.75) internal successors, (635), 4 states have internal predecessors, (635), 0 states have call successors, (0), 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 15:37:01,369 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:37:01,369 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:37:01,369 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-09 15:37:01,370 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:37:01,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:37:01,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1723687009, now seen corresponding path program 3 times [2023-12-09 15:37:01,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:37:01,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358267929] [2023-12-09 15:37:01,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:37:01,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:37:01,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:37:01,483 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:37:01,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:37:01,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358267929] [2023-12-09 15:37:01,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358267929] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:37:01,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:37:01,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 15:37:01,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050118672] [2023-12-09 15:37:01,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:37:01,485 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 15:37:01,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:37:01,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 15:37:01,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-09 15:37:01,486 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 187 [2023-12-09 15:37:01,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 233 transitions, 1128 flow. Second operand has 5 states, 5 states have (on average 155.8) internal successors, (779), 5 states have internal predecessors, (779), 0 states have call successors, (0), 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 15:37:01,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:37:01,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 187 [2023-12-09 15:37:01,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:37:01,687 INFO L124 PetriNetUnfolderBase]: 307/1519 cut-off events. [2023-12-09 15:37:01,687 INFO L125 PetriNetUnfolderBase]: For 1943/2111 co-relation queries the response was YES. [2023-12-09 15:37:01,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3544 conditions, 1519 events. 307/1519 cut-off events. For 1943/2111 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 9938 event pairs, 85 based on Foata normal form. 5/1364 useless extension candidates. Maximal degree in co-relation 3044. Up to 258 conditions per place. [2023-12-09 15:37:01,696 INFO L140 encePairwiseOnDemand]: 179/187 looper letters, 83 selfloop transitions, 10 changer transitions 19/278 dead transitions. [2023-12-09 15:37:01,697 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 278 transitions, 1627 flow [2023-12-09 15:37:01,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-09 15:37:01,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-12-09 15:37:01,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 819 transitions. [2023-12-09 15:37:01,699 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8759358288770054 [2023-12-09 15:37:01,699 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 819 transitions. [2023-12-09 15:37:01,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 819 transitions. [2023-12-09 15:37:01,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:37:01,699 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 819 transitions. [2023-12-09 15:37:01,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 163.8) internal successors, (819), 5 states have internal predecessors, (819), 0 states have call successors, (0), 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 15:37:01,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 187.0) internal successors, (1122), 6 states have internal predecessors, (1122), 0 states have call successors, (0), 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 15:37:01,702 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 187.0) internal successors, (1122), 6 states have internal predecessors, (1122), 0 states have call successors, (0), 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 15:37:01,703 INFO L308 CegarLoopForPetriNet]: 168 programPoint places, 26 predicate places. [2023-12-09 15:37:01,704 INFO L500 AbstractCegarLoop]: Abstraction has has 194 places, 278 transitions, 1627 flow [2023-12-09 15:37:01,707 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 155.8) internal successors, (779), 5 states have internal predecessors, (779), 0 states have call successors, (0), 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 15:37:01,707 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:37:01,708 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:37:01,708 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-09 15:37:01,708 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:37:01,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:37:01,708 INFO L85 PathProgramCache]: Analyzing trace with hash 2106355955, now seen corresponding path program 4 times [2023-12-09 15:37:01,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:37:01,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529191405] [2023-12-09 15:37:01,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:37:01,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:37:01,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:37:01,858 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:37:01,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:37:01,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529191405] [2023-12-09 15:37:01,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529191405] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:37:01,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:37:01,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 15:37:01,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938623659] [2023-12-09 15:37:01,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:37:01,859 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 15:37:01,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:37:01,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 15:37:01,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-09 15:37:01,861 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 187 [2023-12-09 15:37:01,861 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 278 transitions, 1627 flow. Second operand has 6 states, 6 states have (on average 155.33333333333334) internal successors, (932), 6 states have internal predecessors, (932), 0 states have call successors, (0), 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 15:37:01,861 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:37:01,861 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 187 [2023-12-09 15:37:01,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:37:02,145 INFO L124 PetriNetUnfolderBase]: 304/1545 cut-off events. [2023-12-09 15:37:02,145 INFO L125 PetriNetUnfolderBase]: For 2572/2812 co-relation queries the response was YES. [2023-12-09 15:37:02,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4023 conditions, 1545 events. 304/1545 cut-off events. For 2572/2812 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 10192 event pairs, 84 based on Foata normal form. 14/1407 useless extension candidates. Maximal degree in co-relation 2954. Up to 309 conditions per place. [2023-12-09 15:37:02,153 INFO L140 encePairwiseOnDemand]: 179/187 looper letters, 81 selfloop transitions, 18 changer transitions 19/284 dead transitions. [2023-12-09 15:37:02,153 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 284 transitions, 1852 flow [2023-12-09 15:37:02,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-09 15:37:02,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-12-09 15:37:02,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 973 transitions. [2023-12-09 15:37:02,156 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8672014260249554 [2023-12-09 15:37:02,156 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 973 transitions. [2023-12-09 15:37:02,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 973 transitions. [2023-12-09 15:37:02,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:37:02,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 973 transitions. [2023-12-09 15:37:02,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 162.16666666666666) internal successors, (973), 6 states have internal predecessors, (973), 0 states have call successors, (0), 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 15:37:02,159 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 187.0) internal successors, (1309), 7 states have internal predecessors, (1309), 0 states have call successors, (0), 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 15:37:02,160 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 187.0) internal successors, (1309), 7 states have internal predecessors, (1309), 0 states have call successors, (0), 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 15:37:02,162 INFO L308 CegarLoopForPetriNet]: 168 programPoint places, 31 predicate places. [2023-12-09 15:37:02,162 INFO L500 AbstractCegarLoop]: Abstraction has has 199 places, 284 transitions, 1852 flow [2023-12-09 15:37:02,162 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 155.33333333333334) internal successors, (932), 6 states have internal predecessors, (932), 0 states have call successors, (0), 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 15:37:02,162 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:37:02,162 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:37:02,162 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-09 15:37:02,162 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:37:02,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:37:02,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1822399700, now seen corresponding path program 1 times [2023-12-09 15:37:02,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:37:02,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383430643] [2023-12-09 15:37:02,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:37:02,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:37:02,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:37:02,239 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:37:02,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:37:02,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383430643] [2023-12-09 15:37:02,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383430643] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:37:02,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:37:02,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-09 15:37:02,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370591819] [2023-12-09 15:37:02,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:37:02,240 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-09 15:37:02,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:37:02,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-09 15:37:02,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-09 15:37:02,241 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 187 [2023-12-09 15:37:02,242 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 284 transitions, 1852 flow. Second operand has 4 states, 4 states have (on average 162.75) internal successors, (651), 4 states have internal predecessors, (651), 0 states have call successors, (0), 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 15:37:02,242 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:37:02,242 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 187 [2023-12-09 15:37:02,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:37:02,387 INFO L124 PetriNetUnfolderBase]: 288/1428 cut-off events. [2023-12-09 15:37:02,387 INFO L125 PetriNetUnfolderBase]: For 3231/3616 co-relation queries the response was YES. [2023-12-09 15:37:02,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4029 conditions, 1428 events. 288/1428 cut-off events. For 3231/3616 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 9028 event pairs, 91 based on Foata normal form. 19/1307 useless extension candidates. Maximal degree in co-relation 3493. Up to 303 conditions per place. [2023-12-09 15:37:02,395 INFO L140 encePairwiseOnDemand]: 181/187 looper letters, 57 selfloop transitions, 11 changer transitions 28/284 dead transitions. [2023-12-09 15:37:02,395 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 284 transitions, 2003 flow [2023-12-09 15:37:02,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-09 15:37:02,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-12-09 15:37:02,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 826 transitions. [2023-12-09 15:37:02,397 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8834224598930481 [2023-12-09 15:37:02,397 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 826 transitions. [2023-12-09 15:37:02,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 826 transitions. [2023-12-09 15:37:02,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:37:02,397 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 826 transitions. [2023-12-09 15:37:02,398 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 165.2) internal successors, (826), 5 states have internal predecessors, (826), 0 states have call successors, (0), 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 15:37:02,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 187.0) internal successors, (1122), 6 states have internal predecessors, (1122), 0 states have call successors, (0), 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 15:37:02,416 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 187.0) internal successors, (1122), 6 states have internal predecessors, (1122), 0 states have call successors, (0), 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 15:37:02,417 INFO L308 CegarLoopForPetriNet]: 168 programPoint places, 35 predicate places. [2023-12-09 15:37:02,417 INFO L500 AbstractCegarLoop]: Abstraction has has 203 places, 284 transitions, 2003 flow [2023-12-09 15:37:02,417 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 162.75) internal successors, (651), 4 states have internal predecessors, (651), 0 states have call successors, (0), 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 15:37:02,417 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:37:02,417 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:37:02,418 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-09 15:37:02,418 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:37:02,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:37:02,418 INFO L85 PathProgramCache]: Analyzing trace with hash 655985554, now seen corresponding path program 2 times [2023-12-09 15:37:02,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:37:02,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765433182] [2023-12-09 15:37:02,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:37:02,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:37:02,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:37:02,530 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:37:02,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:37:02,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765433182] [2023-12-09 15:37:02,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765433182] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:37:02,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785713863] [2023-12-09 15:37:02,530 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-09 15:37:02,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:37:02,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:37:02,549 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 15:37:02,580 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 15:37:02,664 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-09 15:37:02,664 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:37:02,666 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-09 15:37:02,668 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:37:02,739 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:37:02,739 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:37:02,815 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:37:02,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1785713863] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-09 15:37:02,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-09 15:37:02,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 7 [2023-12-09 15:37:02,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371484584] [2023-12-09 15:37:02,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:37:02,816 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-09 15:37:02,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:37:02,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-09 15:37:02,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-09 15:37:02,817 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 187 [2023-12-09 15:37:02,818 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 284 transitions, 2003 flow. Second operand has 4 states, 4 states have (on average 162.75) internal successors, (651), 4 states have internal predecessors, (651), 0 states have call successors, (0), 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 15:37:02,818 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:37:02,818 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 187 [2023-12-09 15:37:02,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:37:03,002 INFO L124 PetriNetUnfolderBase]: 301/1536 cut-off events. [2023-12-09 15:37:03,002 INFO L125 PetriNetUnfolderBase]: For 4030/4323 co-relation queries the response was YES. [2023-12-09 15:37:03,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4566 conditions, 1536 events. 301/1536 cut-off events. For 4030/4323 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 9941 event pairs, 99 based on Foata normal form. 6/1393 useless extension candidates. Maximal degree in co-relation 3505. Up to 320 conditions per place. [2023-12-09 15:37:03,010 INFO L140 encePairwiseOnDemand]: 182/187 looper letters, 56 selfloop transitions, 24 changer transitions 28/296 dead transitions. [2023-12-09 15:37:03,011 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 296 transitions, 2346 flow [2023-12-09 15:37:03,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-09 15:37:03,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-12-09 15:37:03,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 667 transitions. [2023-12-09 15:37:03,012 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8917112299465241 [2023-12-09 15:37:03,013 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 667 transitions. [2023-12-09 15:37:03,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 667 transitions. [2023-12-09 15:37:03,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:37:03,013 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 667 transitions. [2023-12-09 15:37:03,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 166.75) internal successors, (667), 4 states have internal predecessors, (667), 0 states have call successors, (0), 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 15:37:03,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 187.0) internal successors, (935), 5 states have internal predecessors, (935), 0 states have call successors, (0), 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 15:37:03,015 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 187.0) internal successors, (935), 5 states have internal predecessors, (935), 0 states have call successors, (0), 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 15:37:03,016 INFO L308 CegarLoopForPetriNet]: 168 programPoint places, 38 predicate places. [2023-12-09 15:37:03,016 INFO L500 AbstractCegarLoop]: Abstraction has has 206 places, 296 transitions, 2346 flow [2023-12-09 15:37:03,016 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 162.75) internal successors, (651), 4 states have internal predecessors, (651), 0 states have call successors, (0), 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 15:37:03,016 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:37:03,017 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:37:03,021 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-09 15:37:03,221 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,SelfDestructingSolverStorable7 [2023-12-09 15:37:03,221 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:37:03,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:37:03,222 INFO L85 PathProgramCache]: Analyzing trace with hash 575341714, now seen corresponding path program 3 times [2023-12-09 15:37:03,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:37:03,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755833111] [2023-12-09 15:37:03,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:37:03,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:37:03,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:37:03,378 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:37:03,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:37:03,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755833111] [2023-12-09 15:37:03,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755833111] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:37:03,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [725261723] [2023-12-09 15:37:03,379 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-09 15:37:03,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:37:03,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:37:03,380 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:37:03,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-09 15:37:03,518 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-12-09 15:37:03,519 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:37:03,520 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-09 15:37:03,523 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:37:03,674 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:37:03,675 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:37:03,757 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:37:03,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [725261723] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:37:03,757 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:37:03,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2023-12-09 15:37:03,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574160153] [2023-12-09 15:37:03,757 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:37:03,758 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-09 15:37:03,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:37:03,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-09 15:37:03,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2023-12-09 15:37:03,759 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 187 [2023-12-09 15:37:03,760 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 296 transitions, 2346 flow. Second operand has 9 states, 9 states have (on average 156.55555555555554) internal successors, (1409), 9 states have internal predecessors, (1409), 0 states have call successors, (0), 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 15:37:03,760 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:37:03,761 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 187 [2023-12-09 15:37:03,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:37:04,007 INFO L124 PetriNetUnfolderBase]: 290/1472 cut-off events. [2023-12-09 15:37:04,007 INFO L125 PetriNetUnfolderBase]: For 4114/4541 co-relation queries the response was YES. [2023-12-09 15:37:04,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4677 conditions, 1472 events. 290/1472 cut-off events. For 4114/4541 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 9158 event pairs, 71 based on Foata normal form. 30/1363 useless extension candidates. Maximal degree in co-relation 3852. Up to 285 conditions per place. [2023-12-09 15:37:04,014 INFO L140 encePairwiseOnDemand]: 179/187 looper letters, 89 selfloop transitions, 30 changer transitions 27/306 dead transitions. [2023-12-09 15:37:04,014 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 306 transitions, 2719 flow [2023-12-09 15:37:04,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-09 15:37:04,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-12-09 15:37:04,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1297 transitions. [2023-12-09 15:37:04,017 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8669786096256684 [2023-12-09 15:37:04,017 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1297 transitions. [2023-12-09 15:37:04,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1297 transitions. [2023-12-09 15:37:04,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:37:04,018 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1297 transitions. [2023-12-09 15:37:04,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 162.125) internal successors, (1297), 8 states have internal predecessors, (1297), 0 states have call successors, (0), 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 15:37:04,021 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 187.0) internal successors, (1683), 9 states have internal predecessors, (1683), 0 states have call successors, (0), 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 15:37:04,022 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 187.0) internal successors, (1683), 9 states have internal predecessors, (1683), 0 states have call successors, (0), 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 15:37:04,022 INFO L308 CegarLoopForPetriNet]: 168 programPoint places, 44 predicate places. [2023-12-09 15:37:04,022 INFO L500 AbstractCegarLoop]: Abstraction has has 212 places, 306 transitions, 2719 flow [2023-12-09 15:37:04,023 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 156.55555555555554) internal successors, (1409), 9 states have internal predecessors, (1409), 0 states have call successors, (0), 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 15:37:04,023 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:37:04,023 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:37:04,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-09 15:37:04,228 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:37:04,228 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:37:04,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:37:04,229 INFO L85 PathProgramCache]: Analyzing trace with hash -733897436, now seen corresponding path program 1 times [2023-12-09 15:37:04,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:37:04,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795492058] [2023-12-09 15:37:04,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:37:04,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:37:04,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:37:04,547 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:37:04,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:37:04,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795492058] [2023-12-09 15:37:04,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795492058] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:37:04,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645346579] [2023-12-09 15:37:04,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:37:04,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:37:04,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:37:04,549 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:37:04,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-09 15:37:04,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:37:04,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-09 15:37:04,645 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:37:05,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-12-09 15:37:05,487 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:37:05,487 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:37:05,884 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2023-12-09 15:37:05,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2023-12-09 15:37:06,611 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:37:06,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645346579] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:37:06,611 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:37:06,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 23, 18] total 41 [2023-12-09 15:37:06,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773810605] [2023-12-09 15:37:06,611 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:37:06,612 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2023-12-09 15:37:06,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:37:06,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2023-12-09 15:37:06,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1485, Unknown=0, NotChecked=0, Total=1640 [2023-12-09 15:37:06,615 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 187 [2023-12-09 15:37:06,617 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 306 transitions, 2719 flow. Second operand has 41 states, 41 states have (on average 65.97560975609755) internal successors, (2705), 41 states have internal predecessors, (2705), 0 states have call successors, (0), 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 15:37:06,617 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:37:06,617 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 187 [2023-12-09 15:37:06,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:37:20,008 INFO L124 PetriNetUnfolderBase]: 9716/20255 cut-off events. [2023-12-09 15:37:20,008 INFO L125 PetriNetUnfolderBase]: For 64068/64418 co-relation queries the response was YES. [2023-12-09 15:37:20,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70350 conditions, 20255 events. 9716/20255 cut-off events. For 64068/64418 co-relation queries the response was YES. Maximal size of possible extension queue 310. Compared 168587 event pairs, 690 based on Foata normal form. 43/18876 useless extension candidates. Maximal degree in co-relation 58446. Up to 3633 conditions per place. [2023-12-09 15:37:20,163 INFO L140 encePairwiseOnDemand]: 118/187 looper letters, 911 selfloop transitions, 317 changer transitions 711/2021 dead transitions. [2023-12-09 15:37:20,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 2021 transitions, 16301 flow [2023-12-09 15:37:20,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 198 states. [2023-12-09 15:37:20,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2023-12-09 15:37:20,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 13419 transitions. [2023-12-09 15:37:20,188 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.3624210014584346 [2023-12-09 15:37:20,189 INFO L72 ComplementDD]: Start complementDD. Operand 198 states and 13419 transitions. [2023-12-09 15:37:20,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 198 states and 13419 transitions. [2023-12-09 15:37:20,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:37:20,196 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 198 states and 13419 transitions. [2023-12-09 15:37:20,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 199 states, 198 states have (on average 67.77272727272727) internal successors, (13419), 198 states have internal predecessors, (13419), 0 states have call successors, (0), 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 15:37:20,270 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 199 states, 199 states have (on average 187.0) internal successors, (37213), 199 states have internal predecessors, (37213), 0 states have call successors, (0), 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 15:37:20,282 INFO L81 ComplementDD]: Finished complementDD. Result has 199 states, 199 states have (on average 187.0) internal successors, (37213), 199 states have internal predecessors, (37213), 0 states have call successors, (0), 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 15:37:20,283 INFO L308 CegarLoopForPetriNet]: 168 programPoint places, 241 predicate places. [2023-12-09 15:37:20,284 INFO L500 AbstractCegarLoop]: Abstraction has has 409 places, 2021 transitions, 16301 flow [2023-12-09 15:37:20,284 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 65.97560975609755) internal successors, (2705), 41 states have internal predecessors, (2705), 0 states have call successors, (0), 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 15:37:20,284 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:37:20,284 INFO L233 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:37:20,291 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-09 15:37:20,489 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:37:20,490 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:37:20,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:37:20,491 INFO L85 PathProgramCache]: Analyzing trace with hash -929193352, now seen corresponding path program 2 times [2023-12-09 15:37:20,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:37:20,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554042454] [2023-12-09 15:37:20,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:37:20,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:37:20,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:37:25,465 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:37:25,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:37:25,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554042454] [2023-12-09 15:37:25,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554042454] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-09 15:37:25,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116518112] [2023-12-09 15:37:25,465 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-09 15:37:25,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:37:25,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:37:25,466 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:37:25,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-09 15:37:25,591 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-09 15:37:25,591 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:37:25,593 INFO L262 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 50 conjunts are in the unsatisfiable core [2023-12-09 15:37:25,596 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:37:25,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-12-09 15:37:26,047 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-09 15:37:26,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-09 15:37:26,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-12-09 15:37:26,599 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:37:26,600 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:37:27,857 WARN L854 $PredicateComparison]: unable to prove that (forall ((~x1~0 Int) (~x2~0 Int) (v_ArrVal_193 (Array Int Int)) (v_ArrVal_192 (Array Int Int))) (or (< c_~size~0 (+ ~x1~0 1)) (< ~x1~0 0) (let ((.cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_192) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_193) c_~f~0.base))) (= (select .cse0 (+ (* ~x1~0 4) c_~f~0.offset)) (select .cse0 (+ c_~f~0.offset (* ~x2~0 4))))) (< c_~size~0 (+ ~x2~0 1)) (< ~x2~0 0))) is different from false [2023-12-09 15:37:28,623 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-09 15:37:28,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 44 [2023-12-09 15:37:28,634 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2023-12-09 15:37:28,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 198 treesize of output 169 [2023-12-09 15:37:28,641 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-09 15:37:28,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2023-12-09 15:37:28,647 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-12-09 15:37:28,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 20 [2023-12-09 15:37:28,865 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:37:28,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116518112] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:37:28,865 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-09 15:37:28,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 29, 26] total 58 [2023-12-09 15:37:28,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018561709] [2023-12-09 15:37:28,867 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-09 15:37:28,871 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2023-12-09 15:37:28,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:37:28,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2023-12-09 15:37:28,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=273, Invalid=2903, Unknown=20, NotChecked=110, Total=3306 [2023-12-09 15:37:28,887 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 187 [2023-12-09 15:37:28,889 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 2021 transitions, 16301 flow. Second operand has 58 states, 58 states have (on average 51.793103448275865) internal successors, (3004), 58 states have internal predecessors, (3004), 0 states have call successors, (0), 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 15:37:28,889 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:37:28,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 187 [2023-12-09 15:37:28,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:39:47,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-09 15:40:43,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-09 15:40:51,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-09 15:41:00,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-09 15:41:08,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-09 15:41:21,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-09 15:41:22,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-09 15:41:25,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Received shutdown request... [2023-12-09 15:41:30,938 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-09 15:41:30,938 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 15:41:30,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 280 states. [2023-12-09 15:41:30,971 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-12-09 15:41:30,976 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-09 15:41:31,175 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-09 15:41:31,176 WARN L624 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (58states, 46/187 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 78537 conditions, 19578 events (10620/19577 cut-off events. For 64457/65237 co-relation queries the response was YES. Maximal size of possible extension queue 713. Compared 172258 event pairs, 553 based on Foata normal form. 139/19193 useless extension candidates. Maximal degree in co-relation 54822. Up to 3664 conditions per place.). [2023-12-09 15:41:31,178 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-12-09 15:41:31,178 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-12-09 15:41:31,179 INFO L457 BasicCegarLoop]: Path program histogram: [4, 3, 2, 1, 1] [2023-12-09 15:41:31,182 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 15:41:31,182 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 15:41:31,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:41:31 BasicIcfg [2023-12-09 15:41:31,186 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 15:41:31,186 INFO L158 Benchmark]: Toolchain (without parser) took 273146.85ms. Allocated memory was 191.9MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 129.7MB in the beginning and 448.1MB in the end (delta: -318.4MB). Peak memory consumption was 763.4MB. Max. memory is 8.0GB. [2023-12-09 15:41:31,187 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 191.9MB. Free memory is still 141.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 15:41:31,187 INFO L158 Benchmark]: CACSL2BoogieTranslator took 259.10ms. Allocated memory is still 191.9MB. Free memory was 129.4MB in the beginning and 117.8MB in the end (delta: 11.7MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-09 15:41:31,187 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.61ms. Allocated memory is still 191.9MB. Free memory was 117.4MB in the beginning and 115.7MB in the end (delta: 1.8MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-09 15:41:31,188 INFO L158 Benchmark]: Boogie Preprocessor took 24.34ms. Allocated memory is still 191.9MB. Free memory was 115.7MB in the beginning and 114.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 15:41:31,195 INFO L158 Benchmark]: RCFGBuilder took 372.68ms. Allocated memory was 191.9MB in the beginning and 230.7MB in the end (delta: 38.8MB). Free memory was 114.0MB in the beginning and 187.5MB in the end (delta: -73.5MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-09 15:41:31,195 INFO L158 Benchmark]: TraceAbstraction took 272442.78ms. Allocated memory was 230.7MB in the beginning and 1.3GB in the end (delta: 1.0GB). Free memory was 187.0MB in the beginning and 448.1MB in the end (delta: -261.2MB). Peak memory consumption was 781.2MB. Max. memory is 8.0GB. [2023-12-09 15:41:31,196 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 191.9MB. Free memory is still 141.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 259.10ms. Allocated memory is still 191.9MB. Free memory was 129.4MB in the beginning and 117.8MB in the end (delta: 11.7MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 43.61ms. Allocated memory is still 191.9MB. Free memory was 117.4MB in the beginning and 115.7MB in the end (delta: 1.8MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.34ms. Allocated memory is still 191.9MB. Free memory was 115.7MB in the beginning and 114.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 372.68ms. Allocated memory was 191.9MB in the beginning and 230.7MB in the end (delta: 38.8MB). Free memory was 114.0MB in the beginning and 187.5MB in the end (delta: -73.5MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 272442.78ms. Allocated memory was 230.7MB in the beginning and 1.3GB in the end (delta: 1.0GB). Free memory was 187.0MB in the beginning and 448.1MB in the end (delta: -261.2MB). Peak memory consumption was 781.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 91]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (58states, 46/187 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 78537 conditions, 19578 events (10620/19577 cut-off events. For 64457/65237 co-relation queries the response was YES. Maximal size of possible extension queue 713. Compared 172258 event pairs, 553 based on Foata normal form. 139/19193 useless extension candidates. Maximal degree in co-relation 54822. Up to 3664 conditions per place.). - TimeoutResultAtElement [Line: 86]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (58states, 46/187 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 78537 conditions, 19578 events (10620/19577 cut-off events. For 64457/65237 co-relation queries the response was YES. Maximal size of possible extension queue 713. Compared 172258 event pairs, 553 based on Foata normal form. 139/19193 useless extension candidates. Maximal degree in co-relation 54822. Up to 3664 conditions per place.). - TimeoutResultAtElement [Line: 85]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (58states, 46/187 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 78537 conditions, 19578 events (10620/19577 cut-off events. For 64457/65237 co-relation queries the response was YES. Maximal size of possible extension queue 713. Compared 172258 event pairs, 553 based on Foata normal form. 139/19193 useless extension candidates. Maximal degree in co-relation 54822. Up to 3664 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 239 locations, 3 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: 272.3s, OverallIterations: 11, TraceHistogramMax: 2, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 257.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 5 mSolverCounterUnknown, 8043 SdHoareTripleChecker+Valid, 23.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8043 mSDsluCounter, 13878 SdHoareTripleChecker+Invalid, 22.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 1873 IncrementalHoareTripleChecker+Unchecked, 13099 mSDsCounter, 343 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15908 IncrementalHoareTripleChecker+Invalid, 18129 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 343 mSolverCounterUnsat, 779 mSDtfsCounter, 15908 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1997 GetRequests, 1377 SyntacticMatches, 5 SemanticMatches, 615 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 58728 ImplicationChecksByTransitivity, 229.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16301occurred in iteration=10, InterpolantAutomatonStates: 252, 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, 0.5s SatisfiabilityAnalysisTime, 12.3s InterpolantComputationTime, 2148 NumberOfCodeBlocks, 2148 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 2852 ConstructedInterpolants, 111 QuantifiedInterpolants, 18790 SizeOfPredicates, 75 NumberOfNonLiveVariables, 1496 ConjunctsInSsa, 107 ConjunctsInUnsatCore, 21 InterpolantComputations, 8 PerfectInterpolantSequences, 28/87 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