/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/pthread-wmm/safe012_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 14:57:07,360 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 14:57:07,418 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 14:57:07,447 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 14:57:07,448 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 14:57:07,448 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 14:57:07,449 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 14:57:07,449 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 14:57:07,449 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 14:57:07,452 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 14:57:07,453 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 14:57:07,453 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 14:57:07,453 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 14:57:07,454 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 14:57:07,454 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 14:57:07,454 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 14:57:07,454 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 14:57:07,455 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 14:57:07,455 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 14:57:07,455 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 14:57:07,455 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 14:57:07,456 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 14:57:07,456 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 14:57:07,456 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 14:57:07,456 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 14:57:07,456 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 14:57:07,456 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 14:57:07,457 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 14:57:07,457 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 14:57:07,457 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 14:57:07,458 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 14:57:07,458 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 14:57:07,458 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 14:57:07,458 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 14:57:07,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 14:57:07,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 14:57:07,678 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 14:57:07,679 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 14:57:07,680 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 14:57:07,681 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe012_tso.i [2023-12-09 14:57:08,664 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 14:57:08,831 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 14:57:08,832 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe012_tso.i [2023-12-09 14:57:08,852 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f6f2bf8b/f759b4092c25424a87bc2c62a436cf12/FLAG77304ff14 [2023-12-09 14:57:08,864 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f6f2bf8b/f759b4092c25424a87bc2c62a436cf12 [2023-12-09 14:57:08,867 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 14:57:08,868 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 14:57:08,870 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 14:57:08,870 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 14:57:08,873 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 14:57:08,874 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:57:08" (1/1) ... [2023-12-09 14:57:08,875 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@199842bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:08, skipping insertion in model container [2023-12-09 14:57:08,876 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:57:08" (1/1) ... [2023-12-09 14:57:08,921 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 14:57:09,057 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe012_tso.i[945,958] [2023-12-09 14:57:09,186 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 14:57:09,196 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 14:57:09,209 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe012_tso.i[945,958] [2023-12-09 14:57:09,251 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 14:57:09,283 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 14:57:09,284 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 14:57:09,289 INFO L206 MainTranslator]: Completed translation [2023-12-09 14:57:09,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:09 WrapperNode [2023-12-09 14:57:09,290 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 14:57:09,291 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 14:57:09,291 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 14:57:09,291 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 14:57:09,295 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:09" (1/1) ... [2023-12-09 14:57:09,324 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:09" (1/1) ... [2023-12-09 14:57:09,338 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2023-12-09 14:57:09,339 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 14:57:09,339 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 14:57:09,339 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 14:57:09,339 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 14:57:09,346 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:09" (1/1) ... [2023-12-09 14:57:09,346 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:09" (1/1) ... [2023-12-09 14:57:09,348 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:09" (1/1) ... [2023-12-09 14:57:09,348 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:09" (1/1) ... [2023-12-09 14:57:09,353 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:09" (1/1) ... [2023-12-09 14:57:09,356 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:09" (1/1) ... [2023-12-09 14:57:09,357 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:09" (1/1) ... [2023-12-09 14:57:09,358 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:09" (1/1) ... [2023-12-09 14:57:09,365 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 14:57:09,365 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 14:57:09,365 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 14:57:09,365 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 14:57:09,366 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:09" (1/1) ... [2023-12-09 14:57:09,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 14:57:09,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 14:57:09,404 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 14:57:09,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 14:57:09,430 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-09 14:57:09,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 14:57:09,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 14:57:09,425 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 14:57:09,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 14:57:09,431 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-12-09 14:57:09,431 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-12-09 14:57:09,431 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-12-09 14:57:09,431 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-12-09 14:57:09,431 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-12-09 14:57:09,432 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-12-09 14:57:09,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 14:57:09,432 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-09 14:57:09,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 14:57:09,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 14:57:09,433 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 14:57:09,531 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 14:57:09,533 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 14:57:09,675 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 14:57:09,682 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 14:57:09,682 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-09 14:57:09,683 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:57:09 BoogieIcfgContainer [2023-12-09 14:57:09,683 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 14:57:09,688 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 14:57:09,688 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 14:57:09,690 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 14:57:09,690 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 02:57:08" (1/3) ... [2023-12-09 14:57:09,691 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1104fb2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:57:09, skipping insertion in model container [2023-12-09 14:57:09,691 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:09" (2/3) ... [2023-12-09 14:57:09,691 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1104fb2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:57:09, skipping insertion in model container [2023-12-09 14:57:09,691 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:57:09" (3/3) ... [2023-12-09 14:57:09,692 INFO L112 eAbstractionObserver]: Analyzing ICFG safe012_tso.i [2023-12-09 14:57:09,705 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 14:57:09,706 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 14:57:09,706 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 14:57:09,758 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-09 14:57:09,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 93 transitions, 198 flow [2023-12-09 14:57:09,889 INFO L124 PetriNetUnfolderBase]: 2/90 cut-off events. [2023-12-09 14:57:09,889 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-09 14:57:09,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 90 events. 2/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 53 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2023-12-09 14:57:09,895 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 93 transitions, 198 flow [2023-12-09 14:57:09,901 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 75 transitions, 159 flow [2023-12-09 14:57:09,919 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 14:57:09,923 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;@406a6880, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 14:57:09,923 INFO L363 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-12-09 14:57:09,936 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 14:57:09,937 INFO L124 PetriNetUnfolderBase]: 1/74 cut-off events. [2023-12-09 14:57:09,937 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-09 14:57:09,937 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:09,937 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] [2023-12-09 14:57:09,938 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 14:57:09,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:09,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1283663528, now seen corresponding path program 1 times [2023-12-09 14:57:09,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:09,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052324858] [2023-12-09 14:57:09,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:09,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:10,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:10,531 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 14:57:10,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:10,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052324858] [2023-12-09 14:57:10,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052324858] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:10,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:10,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:57:10,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468593371] [2023-12-09 14:57:10,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:10,542 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:57:10,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:10,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:57:10,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:57:10,569 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 93 [2023-12-09 14:57:10,571 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 75 transitions, 159 flow. Second operand has 7 states, 7 states have (on average 73.71428571428571) internal successors, (516), 7 states have internal predecessors, (516), 0 states have call successors, (0), 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 14:57:10,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:10,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 93 [2023-12-09 14:57:10,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:10,787 INFO L124 PetriNetUnfolderBase]: 50/216 cut-off events. [2023-12-09 14:57:10,787 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-12-09 14:57:10,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 345 conditions, 216 events. 50/216 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 740 event pairs, 10 based on Foata normal form. 8/217 useless extension candidates. Maximal degree in co-relation 311. Up to 55 conditions per place. [2023-12-09 14:57:10,791 INFO L140 encePairwiseOnDemand]: 86/93 looper letters, 16 selfloop transitions, 2 changer transitions 19/96 dead transitions. [2023-12-09 14:57:10,792 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 96 transitions, 281 flow [2023-12-09 14:57:10,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-09 14:57:10,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-12-09 14:57:10,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 689 transitions. [2023-12-09 14:57:10,809 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8231780167264038 [2023-12-09 14:57:10,810 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 689 transitions. [2023-12-09 14:57:10,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 689 transitions. [2023-12-09 14:57:10,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:10,815 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 689 transitions. [2023-12-09 14:57:10,820 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 76.55555555555556) internal successors, (689), 9 states have internal predecessors, (689), 0 states have call successors, (0), 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 14:57:10,825 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 93.0) internal successors, (930), 10 states have internal predecessors, (930), 0 states have call successors, (0), 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 14:57:10,825 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 93.0) internal successors, (930), 10 states have internal predecessors, (930), 0 states have call successors, (0), 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 14:57:10,830 INFO L308 CegarLoopForPetriNet]: 84 programPoint places, 8 predicate places. [2023-12-09 14:57:10,830 INFO L500 AbstractCegarLoop]: Abstraction has has 92 places, 96 transitions, 281 flow [2023-12-09 14:57:10,830 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 73.71428571428571) internal successors, (516), 7 states have internal predecessors, (516), 0 states have call successors, (0), 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 14:57:10,830 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:10,831 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] [2023-12-09 14:57:10,831 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 14:57:10,832 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 14:57:10,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:10,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1299109509, now seen corresponding path program 1 times [2023-12-09 14:57:10,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:10,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816221729] [2023-12-09 14:57:10,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:10,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:10,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:11,109 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 14:57:11,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:11,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816221729] [2023-12-09 14:57:11,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816221729] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:11,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:11,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:57:11,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313517995] [2023-12-09 14:57:11,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:11,112 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:57:11,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:11,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:57:11,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:57:11,113 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 93 [2023-12-09 14:57:11,114 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 96 transitions, 281 flow. Second operand has 7 states, 7 states have (on average 73.85714285714286) internal successors, (517), 7 states have internal predecessors, (517), 0 states have call successors, (0), 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 14:57:11,114 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:11,114 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 93 [2023-12-09 14:57:11,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:11,269 INFO L124 PetriNetUnfolderBase]: 54/306 cut-off events. [2023-12-09 14:57:11,270 INFO L125 PetriNetUnfolderBase]: For 33/57 co-relation queries the response was YES. [2023-12-09 14:57:11,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 590 conditions, 306 events. 54/306 cut-off events. For 33/57 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1396 event pairs, 2 based on Foata normal form. 4/303 useless extension candidates. Maximal degree in co-relation 550. Up to 60 conditions per place. [2023-12-09 14:57:11,275 INFO L140 encePairwiseOnDemand]: 85/93 looper letters, 15 selfloop transitions, 5 changer transitions 60/139 dead transitions. [2023-12-09 14:57:11,276 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 139 transitions, 613 flow [2023-12-09 14:57:11,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-09 14:57:11,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-12-09 14:57:11,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 761 transitions. [2023-12-09 14:57:11,278 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8182795698924731 [2023-12-09 14:57:11,278 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 761 transitions. [2023-12-09 14:57:11,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 761 transitions. [2023-12-09 14:57:11,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:11,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 761 transitions. [2023-12-09 14:57:11,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 76.1) internal successors, (761), 10 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:11,282 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 93.0) internal successors, (1023), 11 states have internal predecessors, (1023), 0 states have call successors, (0), 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 14:57:11,283 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 93.0) internal successors, (1023), 11 states have internal predecessors, (1023), 0 states have call successors, (0), 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 14:57:11,283 INFO L308 CegarLoopForPetriNet]: 84 programPoint places, 17 predicate places. [2023-12-09 14:57:11,283 INFO L500 AbstractCegarLoop]: Abstraction has has 101 places, 139 transitions, 613 flow [2023-12-09 14:57:11,284 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 73.85714285714286) internal successors, (517), 7 states have internal predecessors, (517), 0 states have call successors, (0), 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 14:57:11,284 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:11,284 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] [2023-12-09 14:57:11,285 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 14:57:11,285 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 14:57:11,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:11,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1842940058, now seen corresponding path program 1 times [2023-12-09 14:57:11,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:11,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985989826] [2023-12-09 14:57:11,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:11,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:11,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:11,479 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 14:57:11,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:11,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985989826] [2023-12-09 14:57:11,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985989826] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:11,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:11,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 14:57:11,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588303778] [2023-12-09 14:57:11,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:11,481 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 14:57:11,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:11,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 14:57:11,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-09 14:57:11,486 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 93 [2023-12-09 14:57:11,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 139 transitions, 613 flow. Second operand has 8 states, 8 states have (on average 71.875) internal successors, (575), 8 states have internal predecessors, (575), 0 states have call successors, (0), 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 14:57:11,490 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:11,490 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 93 [2023-12-09 14:57:11,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:11,685 INFO L124 PetriNetUnfolderBase]: 120/458 cut-off events. [2023-12-09 14:57:11,685 INFO L125 PetriNetUnfolderBase]: For 179/300 co-relation queries the response was YES. [2023-12-09 14:57:11,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1195 conditions, 458 events. 120/458 cut-off events. For 179/300 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2504 event pairs, 6 based on Foata normal form. 13/462 useless extension candidates. Maximal degree in co-relation 1148. Up to 97 conditions per place. [2023-12-09 14:57:11,688 INFO L140 encePairwiseOnDemand]: 85/93 looper letters, 13 selfloop transitions, 4 changer transitions 129/202 dead transitions. [2023-12-09 14:57:11,688 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 202 transitions, 1269 flow [2023-12-09 14:57:11,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 14:57:11,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 14:57:11,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 964 transitions. [2023-12-09 14:57:11,690 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7973531844499586 [2023-12-09 14:57:11,690 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 964 transitions. [2023-12-09 14:57:11,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 964 transitions. [2023-12-09 14:57:11,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:11,691 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 964 transitions. [2023-12-09 14:57:11,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 74.15384615384616) internal successors, (964), 13 states have internal predecessors, (964), 0 states have call successors, (0), 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 14:57:11,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 93.0) internal successors, (1302), 14 states have internal predecessors, (1302), 0 states have call successors, (0), 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 14:57:11,694 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 93.0) internal successors, (1302), 14 states have internal predecessors, (1302), 0 states have call successors, (0), 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 14:57:11,695 INFO L308 CegarLoopForPetriNet]: 84 programPoint places, 29 predicate places. [2023-12-09 14:57:11,695 INFO L500 AbstractCegarLoop]: Abstraction has has 113 places, 202 transitions, 1269 flow [2023-12-09 14:57:11,695 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 71.875) internal successors, (575), 8 states have internal predecessors, (575), 0 states have call successors, (0), 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 14:57:11,695 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:11,695 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] [2023-12-09 14:57:11,696 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-09 14:57:11,696 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 14:57:11,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:11,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1792696940, now seen corresponding path program 1 times [2023-12-09 14:57:11,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:11,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483493268] [2023-12-09 14:57:11,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:11,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:11,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:11,807 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 14:57:11,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:11,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483493268] [2023-12-09 14:57:11,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483493268] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:11,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:11,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:57:11,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940398606] [2023-12-09 14:57:11,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:11,808 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:57:11,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:11,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:57:11,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:57:11,810 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 93 [2023-12-09 14:57:11,810 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 202 transitions, 1269 flow. Second operand has 7 states, 7 states have (on average 75.71428571428571) internal successors, (530), 7 states have internal predecessors, (530), 0 states have call successors, (0), 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 14:57:11,810 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:11,810 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 93 [2023-12-09 14:57:11,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:12,065 INFO L124 PetriNetUnfolderBase]: 408/1134 cut-off events. [2023-12-09 14:57:12,065 INFO L125 PetriNetUnfolderBase]: For 776/1067 co-relation queries the response was YES. [2023-12-09 14:57:12,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3454 conditions, 1134 events. 408/1134 cut-off events. For 776/1067 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 8155 event pairs, 16 based on Foata normal form. 27/1141 useless extension candidates. Maximal degree in co-relation 3402. Up to 267 conditions per place. [2023-12-09 14:57:12,071 INFO L140 encePairwiseOnDemand]: 85/93 looper letters, 10 selfloop transitions, 4 changer transitions 253/329 dead transitions. [2023-12-09 14:57:12,071 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 329 transitions, 2691 flow [2023-12-09 14:57:12,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 14:57:12,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 14:57:12,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 999 transitions. [2023-12-09 14:57:12,074 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.826302729528536 [2023-12-09 14:57:12,074 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 999 transitions. [2023-12-09 14:57:12,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 999 transitions. [2023-12-09 14:57:12,075 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:12,075 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 999 transitions. [2023-12-09 14:57:12,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 76.84615384615384) internal successors, (999), 13 states have internal predecessors, (999), 0 states have call successors, (0), 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 14:57:12,079 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 93.0) internal successors, (1302), 14 states have internal predecessors, (1302), 0 states have call successors, (0), 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 14:57:12,080 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 93.0) internal successors, (1302), 14 states have internal predecessors, (1302), 0 states have call successors, (0), 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 14:57:12,081 INFO L308 CegarLoopForPetriNet]: 84 programPoint places, 41 predicate places. [2023-12-09 14:57:12,082 INFO L500 AbstractCegarLoop]: Abstraction has has 125 places, 329 transitions, 2691 flow [2023-12-09 14:57:12,082 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 75.71428571428571) internal successors, (530), 7 states have internal predecessors, (530), 0 states have call successors, (0), 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 14:57:12,082 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:12,083 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] [2023-12-09 14:57:12,083 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-09 14:57:12,083 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 14:57:12,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:12,084 INFO L85 PathProgramCache]: Analyzing trace with hash -939212180, now seen corresponding path program 1 times [2023-12-09 14:57:12,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:12,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424841149] [2023-12-09 14:57:12,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:12,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:12,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:12,243 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 14:57:12,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:12,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424841149] [2023-12-09 14:57:12,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424841149] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:12,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:12,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 14:57:12,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617383654] [2023-12-09 14:57:12,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:12,245 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 14:57:12,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:12,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 14:57:12,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-09 14:57:12,247 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 93 [2023-12-09 14:57:12,248 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 329 transitions, 2691 flow. Second operand has 6 states, 6 states have (on average 76.0) internal successors, (456), 6 states have internal predecessors, (456), 0 states have call successors, (0), 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 14:57:12,248 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:12,248 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 93 [2023-12-09 14:57:12,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:12,556 INFO L124 PetriNetUnfolderBase]: 982/2370 cut-off events. [2023-12-09 14:57:12,556 INFO L125 PetriNetUnfolderBase]: For 1331/1827 co-relation queries the response was YES. [2023-12-09 14:57:12,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6341 conditions, 2370 events. 982/2370 cut-off events. For 1331/1827 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 19993 event pairs, 47 based on Foata normal form. 21/2252 useless extension candidates. Maximal degree in co-relation 6285. Up to 588 conditions per place. [2023-12-09 14:57:12,568 INFO L140 encePairwiseOnDemand]: 83/93 looper letters, 32 selfloop transitions, 17 changer transitions 158/310 dead transitions. [2023-12-09 14:57:12,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 310 transitions, 2381 flow [2023-12-09 14:57:12,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-09 14:57:12,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-12-09 14:57:12,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 790 transitions. [2023-12-09 14:57:12,571 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8494623655913979 [2023-12-09 14:57:12,571 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 790 transitions. [2023-12-09 14:57:12,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 790 transitions. [2023-12-09 14:57:12,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:12,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 790 transitions. [2023-12-09 14:57:12,573 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 79.0) internal successors, (790), 10 states have internal predecessors, (790), 0 states have call successors, (0), 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 14:57:12,574 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 93.0) internal successors, (1023), 11 states have internal predecessors, (1023), 0 states have call successors, (0), 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 14:57:12,575 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 93.0) internal successors, (1023), 11 states have internal predecessors, (1023), 0 states have call successors, (0), 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 14:57:12,577 INFO L308 CegarLoopForPetriNet]: 84 programPoint places, 50 predicate places. [2023-12-09 14:57:12,577 INFO L500 AbstractCegarLoop]: Abstraction has has 134 places, 310 transitions, 2381 flow [2023-12-09 14:57:12,577 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.0) internal successors, (456), 6 states have internal predecessors, (456), 0 states have call successors, (0), 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 14:57:12,577 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:12,578 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] [2023-12-09 14:57:12,578 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-09 14:57:12,578 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 14:57:12,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:12,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1351484319, now seen corresponding path program 1 times [2023-12-09 14:57:12,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:12,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463693634] [2023-12-09 14:57:12,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:12,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:12,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:12,704 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 14:57:12,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:12,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463693634] [2023-12-09 14:57:12,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463693634] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:12,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:12,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:57:12,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850985387] [2023-12-09 14:57:12,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:12,705 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:57:12,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:12,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:57:12,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:57:12,706 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 93 [2023-12-09 14:57:12,707 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 310 transitions, 2381 flow. Second operand has 7 states, 7 states have (on average 75.85714285714286) internal successors, (531), 7 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:12,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:12,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 93 [2023-12-09 14:57:12,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:13,021 INFO L124 PetriNetUnfolderBase]: 618/1654 cut-off events. [2023-12-09 14:57:13,021 INFO L125 PetriNetUnfolderBase]: For 843/1355 co-relation queries the response was YES. [2023-12-09 14:57:13,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4741 conditions, 1654 events. 618/1654 cut-off events. For 843/1355 co-relation queries the response was YES. Maximal size of possible extension queue 213. Compared 13812 event pairs, 13 based on Foata normal form. 116/1701 useless extension candidates. Maximal degree in co-relation 4681. Up to 490 conditions per place. [2023-12-09 14:57:13,027 INFO L140 encePairwiseOnDemand]: 83/93 looper letters, 17 selfloop transitions, 9 changer transitions 153/237 dead transitions. [2023-12-09 14:57:13,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 237 transitions, 1666 flow [2023-12-09 14:57:13,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 14:57:13,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 14:57:13,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1027 transitions. [2023-12-09 14:57:13,030 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8494623655913979 [2023-12-09 14:57:13,030 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1027 transitions. [2023-12-09 14:57:13,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1027 transitions. [2023-12-09 14:57:13,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:13,030 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1027 transitions. [2023-12-09 14:57:13,032 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 79.0) internal successors, (1027), 13 states have internal predecessors, (1027), 0 states have call successors, (0), 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 14:57:13,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 93.0) internal successors, (1302), 14 states have internal predecessors, (1302), 0 states have call successors, (0), 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 14:57:13,034 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 93.0) internal successors, (1302), 14 states have internal predecessors, (1302), 0 states have call successors, (0), 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 14:57:13,036 INFO L308 CegarLoopForPetriNet]: 84 programPoint places, 62 predicate places. [2023-12-09 14:57:13,036 INFO L500 AbstractCegarLoop]: Abstraction has has 146 places, 237 transitions, 1666 flow [2023-12-09 14:57:13,037 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 75.85714285714286) internal successors, (531), 7 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:13,037 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:13,037 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] [2023-12-09 14:57:13,037 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-09 14:57:13,037 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 14:57:13,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:13,037 INFO L85 PathProgramCache]: Analyzing trace with hash -331864000, now seen corresponding path program 1 times [2023-12-09 14:57:13,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:13,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386011250] [2023-12-09 14:57:13,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:13,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:13,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:13,165 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 14:57:13,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:13,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386011250] [2023-12-09 14:57:13,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386011250] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:13,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:13,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 14:57:13,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348869917] [2023-12-09 14:57:13,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:13,168 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 14:57:13,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:13,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 14:57:13,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-09 14:57:13,170 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 93 [2023-12-09 14:57:13,171 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 237 transitions, 1666 flow. Second operand has 8 states, 8 states have (on average 75.75) internal successors, (606), 8 states have internal predecessors, (606), 0 states have call successors, (0), 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 14:57:13,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:13,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 93 [2023-12-09 14:57:13,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:13,426 INFO L124 PetriNetUnfolderBase]: 555/1474 cut-off events. [2023-12-09 14:57:13,426 INFO L125 PetriNetUnfolderBase]: For 1352/2532 co-relation queries the response was YES. [2023-12-09 14:57:13,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4944 conditions, 1474 events. 555/1474 cut-off events. For 1352/2532 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 12477 event pairs, 2 based on Foata normal form. 190/1581 useless extension candidates. Maximal degree in co-relation 4880. Up to 431 conditions per place. [2023-12-09 14:57:13,433 INFO L140 encePairwiseOnDemand]: 83/93 looper letters, 11 selfloop transitions, 12 changer transitions 121/202 dead transitions. [2023-12-09 14:57:13,434 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 202 transitions, 1526 flow [2023-12-09 14:57:13,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-09 14:57:13,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-12-09 14:57:13,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1248 transitions. [2023-12-09 14:57:13,436 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8387096774193549 [2023-12-09 14:57:13,436 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1248 transitions. [2023-12-09 14:57:13,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1248 transitions. [2023-12-09 14:57:13,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:13,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1248 transitions. [2023-12-09 14:57:13,439 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 78.0) internal successors, (1248), 16 states have internal predecessors, (1248), 0 states have call successors, (0), 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 14:57:13,441 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 93.0) internal successors, (1581), 17 states have internal predecessors, (1581), 0 states have call successors, (0), 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 14:57:13,441 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 93.0) internal successors, (1581), 17 states have internal predecessors, (1581), 0 states have call successors, (0), 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 14:57:13,441 INFO L308 CegarLoopForPetriNet]: 84 programPoint places, 53 predicate places. [2023-12-09 14:57:13,442 INFO L500 AbstractCegarLoop]: Abstraction has has 137 places, 202 transitions, 1526 flow [2023-12-09 14:57:13,442 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 75.75) internal successors, (606), 8 states have internal predecessors, (606), 0 states have call successors, (0), 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 14:57:13,442 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:13,442 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] [2023-12-09 14:57:13,442 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-09 14:57:13,442 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 14:57:13,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:13,443 INFO L85 PathProgramCache]: Analyzing trace with hash -321913835, now seen corresponding path program 1 times [2023-12-09 14:57:13,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:13,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355076805] [2023-12-09 14:57:13,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:13,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:13,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:13,566 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 14:57:13,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:13,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355076805] [2023-12-09 14:57:13,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355076805] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:13,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:13,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:57:13,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505042424] [2023-12-09 14:57:13,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:13,567 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:57:13,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:13,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:57:13,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:57:13,568 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 93 [2023-12-09 14:57:13,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 202 transitions, 1526 flow. Second operand has 7 states, 7 states have (on average 75.85714285714286) internal successors, (531), 7 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:13,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:13,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 93 [2023-12-09 14:57:13,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:13,797 INFO L124 PetriNetUnfolderBase]: 878/2385 cut-off events. [2023-12-09 14:57:13,797 INFO L125 PetriNetUnfolderBase]: For 1694/2270 co-relation queries the response was YES. [2023-12-09 14:57:13,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8032 conditions, 2385 events. 878/2385 cut-off events. For 1694/2270 co-relation queries the response was YES. Maximal size of possible extension queue 352. Compared 22576 event pairs, 2 based on Foata normal form. 7/2312 useless extension candidates. Maximal degree in co-relation 7963. Up to 701 conditions per place. [2023-12-09 14:57:13,807 INFO L140 encePairwiseOnDemand]: 87/93 looper letters, 0 selfloop transitions, 0 changer transitions 224/224 dead transitions. [2023-12-09 14:57:13,807 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 224 transitions, 1938 flow [2023-12-09 14:57:13,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-09 14:57:13,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-12-09 14:57:13,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 538 transitions. [2023-12-09 14:57:13,809 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.82642089093702 [2023-12-09 14:57:13,809 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 538 transitions. [2023-12-09 14:57:13,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 538 transitions. [2023-12-09 14:57:13,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:13,809 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 538 transitions. [2023-12-09 14:57:13,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 76.85714285714286) internal successors, (538), 7 states have internal predecessors, (538), 0 states have call successors, (0), 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 14:57:13,811 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 93.0) internal successors, (744), 8 states have internal predecessors, (744), 0 states have call successors, (0), 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 14:57:13,811 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 93.0) internal successors, (744), 8 states have internal predecessors, (744), 0 states have call successors, (0), 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 14:57:13,811 INFO L308 CegarLoopForPetriNet]: 84 programPoint places, 57 predicate places. [2023-12-09 14:57:13,812 INFO L500 AbstractCegarLoop]: Abstraction has has 141 places, 224 transitions, 1938 flow [2023-12-09 14:57:13,812 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 75.85714285714286) internal successors, (531), 7 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:13,816 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/safe012_tso.i_BEv2_AllErrorsAtOnce [2023-12-09 14:57:13,849 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-12-09 14:57:13,849 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-12-09 14:57:13,850 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-12-09 14:57:13,850 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-12-09 14:57:13,850 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-09 14:57:13,851 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:57:13,853 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 14:57:13,853 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 14:57:13,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 02:57:13 BasicIcfg [2023-12-09 14:57:13,862 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 14:57:13,862 INFO L158 Benchmark]: Toolchain (without parser) took 4994.45ms. Allocated memory was 235.9MB in the beginning and 295.7MB in the end (delta: 59.8MB). Free memory was 186.8MB in the beginning and 105.2MB in the end (delta: 81.6MB). Peak memory consumption was 140.7MB. Max. memory is 8.0GB. [2023-12-09 14:57:13,862 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 188.7MB. Free memory is still 144.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 14:57:13,862 INFO L158 Benchmark]: CACSL2BoogieTranslator took 419.73ms. Allocated memory is still 235.9MB. Free memory was 186.2MB in the beginning and 165.8MB in the end (delta: 20.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-09 14:57:13,862 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.14ms. Allocated memory is still 235.9MB. Free memory was 165.8MB in the beginning and 163.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 14:57:13,863 INFO L158 Benchmark]: Boogie Preprocessor took 25.66ms. Allocated memory is still 235.9MB. Free memory was 163.8MB in the beginning and 162.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 14:57:13,863 INFO L158 Benchmark]: RCFGBuilder took 317.99ms. Allocated memory is still 235.9MB. Free memory was 162.1MB in the beginning and 148.0MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-09 14:57:13,863 INFO L158 Benchmark]: TraceAbstraction took 4173.65ms. Allocated memory was 235.9MB in the beginning and 295.7MB in the end (delta: 59.8MB). Free memory was 147.4MB in the beginning and 105.2MB in the end (delta: 42.3MB). Peak memory consumption was 100.9MB. Max. memory is 8.0GB. [2023-12-09 14:57:13,864 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 188.7MB. Free memory is still 144.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 419.73ms. Allocated memory is still 235.9MB. Free memory was 186.2MB in the beginning and 165.8MB in the end (delta: 20.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 48.14ms. Allocated memory is still 235.9MB. Free memory was 165.8MB in the beginning and 163.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.66ms. Allocated memory is still 235.9MB. Free memory was 163.8MB in the beginning and 162.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 317.99ms. Allocated memory is still 235.9MB. Free memory was 162.1MB in the beginning and 148.0MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4173.65ms. Allocated memory was 235.9MB in the beginning and 295.7MB in the end (delta: 59.8MB). Free memory was 147.4MB in the beginning and 105.2MB in the end (delta: 42.3MB). Peak memory consumption was 100.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 119 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.1s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 376 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 376 mSDsluCounter, 407 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 314 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 488 IncrementalHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 93 mSDtfsCounter, 488 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2691occurred in iteration=4, InterpolantAutomatonStates: 91, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 472 NumberOfCodeBlocks, 472 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 464 ConstructedInterpolants, 0 QuantifiedInterpolants, 1828 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-12-09 14:57:13,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...