/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/safe001_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 14:56:31,521 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 14:56:31,591 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 14:56:31,623 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 14:56:31,623 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 14:56:31,624 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 14:56:31,624 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 14:56:31,625 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 14:56:31,625 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 14:56:31,637 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 14:56:31,637 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 14:56:31,638 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 14:56:31,638 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 14:56:31,639 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 14:56:31,639 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 14:56:31,639 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 14:56:31,639 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 14:56:31,639 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 14:56:31,640 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 14:56:31,640 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 14:56:31,640 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 14:56:31,641 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 14:56:31,641 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 14:56:31,641 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 14:56:31,641 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 14:56:31,641 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 14:56:31,641 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 14:56:31,642 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 14:56:31,642 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 14:56:31,642 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 14:56:31,643 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 14:56:31,643 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 14:56:31,643 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 14:56:31,643 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 14:56:31,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 14:56:31,856 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 14:56:31,857 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 14:56:31,858 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 14:56:31,859 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 14:56:31,859 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.i [2023-12-09 14:56:32,797 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 14:56:32,960 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 14:56:32,961 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe001_tso.i [2023-12-09 14:56:32,971 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/578ec288b/1f3a62f322cb493ba925dc335b80bb99/FLAGc1c93790d [2023-12-09 14:56:32,993 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/578ec288b/1f3a62f322cb493ba925dc335b80bb99 [2023-12-09 14:56:32,995 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 14:56:32,996 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 14:56:32,997 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 14:56:32,997 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 14:56:33,002 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 14:56:33,002 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:56:32" (1/1) ... [2023-12-09 14:56:33,003 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f68b187 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:56:33, skipping insertion in model container [2023-12-09 14:56:33,004 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:56:32" (1/1) ... [2023-12-09 14:56:33,054 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 14:56:33,166 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/safe001_tso.i[945,958] [2023-12-09 14:56:33,283 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 14:56:33,290 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 14:56:33,302 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/safe001_tso.i[945,958] [2023-12-09 14:56:33,340 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 14:56:33,357 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 14:56:33,358 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 14:56:33,363 INFO L206 MainTranslator]: Completed translation [2023-12-09 14:56:33,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:56:33 WrapperNode [2023-12-09 14:56:33,363 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 14:56:33,364 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 14:56:33,365 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 14:56:33,365 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 14:56:33,370 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:56:33" (1/1) ... [2023-12-09 14:56:33,378 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:56:33" (1/1) ... [2023-12-09 14:56:33,394 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 69 [2023-12-09 14:56:33,395 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 14:56:33,395 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 14:56:33,395 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 14:56:33,395 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 14:56:33,401 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:56:33" (1/1) ... [2023-12-09 14:56:33,401 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:56:33" (1/1) ... [2023-12-09 14:56:33,403 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:56:33" (1/1) ... [2023-12-09 14:56:33,403 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:56:33" (1/1) ... [2023-12-09 14:56:33,407 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:56:33" (1/1) ... [2023-12-09 14:56:33,408 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:56:33" (1/1) ... [2023-12-09 14:56:33,418 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:56:33" (1/1) ... [2023-12-09 14:56:33,419 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:56:33" (1/1) ... [2023-12-09 14:56:33,421 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 14:56:33,422 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 14:56:33,422 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 14:56:33,422 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 14:56:33,422 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:56:33" (1/1) ... [2023-12-09 14:56:33,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 14:56:33,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 14:56:33,460 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 14:56:33,461 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 14:56:33,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 14:56:33,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-09 14:56:33,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 14:56:33,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 14:56:33,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 14:56:33,480 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-12-09 14:56:33,480 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-12-09 14:56:33,480 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-12-09 14:56:33,480 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-12-09 14:56:33,480 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-12-09 14:56:33,480 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-12-09 14:56:33,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 14:56:33,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-09 14:56:33,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 14:56:33,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 14:56:33,481 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 14:56:33,567 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 14:56:33,569 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 14:56:33,710 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 14:56:33,719 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 14:56:33,719 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-09 14:56:33,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:56:33 BoogieIcfgContainer [2023-12-09 14:56:33,720 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 14:56:33,722 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 14:56:33,722 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 14:56:33,724 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 14:56:33,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 02:56:32" (1/3) ... [2023-12-09 14:56:33,725 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fccbc29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:56:33, skipping insertion in model container [2023-12-09 14:56:33,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:56:33" (2/3) ... [2023-12-09 14:56:33,725 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fccbc29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:56:33, skipping insertion in model container [2023-12-09 14:56:33,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:56:33" (3/3) ... [2023-12-09 14:56:33,726 INFO L112 eAbstractionObserver]: Analyzing ICFG safe001_tso.i [2023-12-09 14:56:33,737 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 14:56:33,738 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 14:56:33,738 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 14:56:33,777 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-09 14:56:33,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 91 transitions, 194 flow [2023-12-09 14:56:33,831 INFO L124 PetriNetUnfolderBase]: 2/88 cut-off events. [2023-12-09 14:56:33,831 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-09 14:56:33,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 88 events. 2/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2023-12-09 14:56:33,835 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 91 transitions, 194 flow [2023-12-09 14:56:33,838 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 73 transitions, 155 flow [2023-12-09 14:56:33,844 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 14:56:33,849 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;@383ccade, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 14:56:33,850 INFO L363 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-12-09 14:56:33,872 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 14:56:33,872 INFO L124 PetriNetUnfolderBase]: 1/72 cut-off events. [2023-12-09 14:56:33,872 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-09 14:56:33,872 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:56:33,873 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] [2023-12-09 14:56:33,873 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 14:56:33,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:56:33,883 INFO L85 PathProgramCache]: Analyzing trace with hash -70594859, now seen corresponding path program 1 times [2023-12-09 14:56:33,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:56:33,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292873433] [2023-12-09 14:56:33,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:56:33,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:56:34,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:56:34,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:56:34,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:56:34,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292873433] [2023-12-09 14:56:34,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292873433] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:56:34,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:56:34,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 14:56:34,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092750338] [2023-12-09 14:56:34,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:56:34,531 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 14:56:34,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:56:34,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 14:56:34,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-09 14:56:34,562 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 91 [2023-12-09 14:56:34,567 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 73 transitions, 155 flow. Second operand has 6 states, 6 states have (on average 68.16666666666667) internal successors, (409), 6 states have internal predecessors, (409), 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 14:56:34,567 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:56:34,567 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 91 [2023-12-09 14:56:34,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:56:34,933 INFO L124 PetriNetUnfolderBase]: 661/1691 cut-off events. [2023-12-09 14:56:34,933 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2023-12-09 14:56:34,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2786 conditions, 1691 events. 661/1691 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 12344 event pairs, 143 based on Foata normal form. 48/1691 useless extension candidates. Maximal degree in co-relation 2753. Up to 324 conditions per place. [2023-12-09 14:56:34,943 INFO L140 encePairwiseOnDemand]: 79/91 looper letters, 24 selfloop transitions, 7 changer transitions 43/127 dead transitions. [2023-12-09 14:56:34,943 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 127 transitions, 417 flow [2023-12-09 14:56:34,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-09 14:56:34,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-12-09 14:56:34,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 672 transitions. [2023-12-09 14:56:34,956 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8205128205128205 [2023-12-09 14:56:34,956 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 672 transitions. [2023-12-09 14:56:34,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 672 transitions. [2023-12-09 14:56:34,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:56:34,961 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 672 transitions. [2023-12-09 14:56:34,965 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 74.66666666666667) internal successors, (672), 9 states have internal predecessors, (672), 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 14:56:34,971 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 91.0) internal successors, (910), 10 states have internal predecessors, (910), 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 14:56:34,972 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 91.0) internal successors, (910), 10 states have internal predecessors, (910), 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 14:56:34,975 INFO L308 CegarLoopForPetriNet]: 82 programPoint places, 8 predicate places. [2023-12-09 14:56:34,975 INFO L500 AbstractCegarLoop]: Abstraction has has 90 places, 127 transitions, 417 flow [2023-12-09 14:56:34,975 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.16666666666667) internal successors, (409), 6 states have internal predecessors, (409), 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 14:56:34,975 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:56:34,976 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 14:56:34,976 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 14:56:34,976 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 14:56:34,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:56:34,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1589112746, now seen corresponding path program 1 times [2023-12-09 14:56:34,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:56:34,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948539283] [2023-12-09 14:56:34,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:56:34,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:56:35,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:56:35,251 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 14:56:35,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:56:35,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948539283] [2023-12-09 14:56:35,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948539283] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:56:35,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:56:35,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:56:35,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063200797] [2023-12-09 14:56:35,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:56:35,257 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:56:35,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:56:35,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:56:35,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:56:35,258 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 91 [2023-12-09 14:56:35,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 127 transitions, 417 flow. Second operand has 7 states, 7 states have (on average 68.0) internal successors, (476), 7 states have internal predecessors, (476), 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 14:56:35,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:56:35,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 91 [2023-12-09 14:56:35,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:56:35,617 INFO L124 PetriNetUnfolderBase]: 686/1905 cut-off events. [2023-12-09 14:56:35,618 INFO L125 PetriNetUnfolderBase]: For 95/853 co-relation queries the response was YES. [2023-12-09 14:56:35,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4219 conditions, 1905 events. 686/1905 cut-off events. For 95/853 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 14773 event pairs, 4 based on Foata normal form. 46/1915 useless extension candidates. Maximal degree in co-relation 4179. Up to 365 conditions per place. [2023-12-09 14:56:35,628 INFO L140 encePairwiseOnDemand]: 79/91 looper letters, 33 selfloop transitions, 12 changer transitions 171/269 dead transitions. [2023-12-09 14:56:35,628 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 269 transitions, 1423 flow [2023-12-09 14:56:35,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 14:56:35,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 14:56:35,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 963 transitions. [2023-12-09 14:56:35,631 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8140321217244294 [2023-12-09 14:56:35,631 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 963 transitions. [2023-12-09 14:56:35,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 963 transitions. [2023-12-09 14:56:35,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:56:35,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 963 transitions. [2023-12-09 14:56:35,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 74.07692307692308) internal successors, (963), 13 states have internal predecessors, (963), 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 14:56:35,635 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 91.0) internal successors, (1274), 14 states have internal predecessors, (1274), 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 14:56:35,635 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 91.0) internal successors, (1274), 14 states have internal predecessors, (1274), 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 14:56:35,636 INFO L308 CegarLoopForPetriNet]: 82 programPoint places, 20 predicate places. [2023-12-09 14:56:35,636 INFO L500 AbstractCegarLoop]: Abstraction has has 102 places, 269 transitions, 1423 flow [2023-12-09 14:56:35,637 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 68.0) internal successors, (476), 7 states have internal predecessors, (476), 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 14:56:35,637 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:56:35,637 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] [2023-12-09 14:56:35,637 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 14:56:35,637 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 14:56:35,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:56:35,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1402921652, now seen corresponding path program 1 times [2023-12-09 14:56:35,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:56:35,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384230043] [2023-12-09 14:56:35,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:56:35,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:56:35,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:56:35,797 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 14:56:35,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:56:35,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384230043] [2023-12-09 14:56:35,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384230043] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:56:35,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:56:35,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:56:35,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347745499] [2023-12-09 14:56:35,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:56:35,799 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:56:35,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:56:35,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:56:35,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:56:35,801 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 91 [2023-12-09 14:56:35,802 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 269 transitions, 1423 flow. Second operand has 7 states, 7 states have (on average 68.14285714285714) internal successors, (477), 7 states have internal predecessors, (477), 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 14:56:35,802 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:56:35,802 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 91 [2023-12-09 14:56:35,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:56:36,116 INFO L124 PetriNetUnfolderBase]: 807/2337 cut-off events. [2023-12-09 14:56:36,117 INFO L125 PetriNetUnfolderBase]: For 291/995 co-relation queries the response was YES. [2023-12-09 14:56:36,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6457 conditions, 2337 events. 807/2337 cut-off events. For 291/995 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 19589 event pairs, 0 based on Foata normal form. 52/2365 useless extension candidates. Maximal degree in co-relation 6410. Up to 525 conditions per place. [2023-12-09 14:56:36,128 INFO L140 encePairwiseOnDemand]: 79/91 looper letters, 39 selfloop transitions, 20 changer transitions 342/454 dead transitions. [2023-12-09 14:56:36,128 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 454 transitions, 3344 flow [2023-12-09 14:56:36,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 14:56:36,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 14:56:36,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 960 transitions. [2023-12-09 14:56:36,130 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8114961961115807 [2023-12-09 14:56:36,131 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 960 transitions. [2023-12-09 14:56:36,131 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 960 transitions. [2023-12-09 14:56:36,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:56:36,131 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 960 transitions. [2023-12-09 14:56:36,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 73.84615384615384) internal successors, (960), 13 states have internal predecessors, (960), 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 14:56:36,135 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 91.0) internal successors, (1274), 14 states have internal predecessors, (1274), 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 14:56:36,135 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 91.0) internal successors, (1274), 14 states have internal predecessors, (1274), 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 14:56:36,136 INFO L308 CegarLoopForPetriNet]: 82 programPoint places, 32 predicate places. [2023-12-09 14:56:36,136 INFO L500 AbstractCegarLoop]: Abstraction has has 114 places, 454 transitions, 3344 flow [2023-12-09 14:56:36,136 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 68.14285714285714) internal successors, (477), 7 states have internal predecessors, (477), 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 14:56:36,136 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:56:36,137 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] [2023-12-09 14:56:36,137 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-09 14:56:36,137 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 14:56:36,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:56:36,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1514355550, now seen corresponding path program 1 times [2023-12-09 14:56:36,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:56:36,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621160864] [2023-12-09 14:56:36,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:56:36,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:56:36,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:56:36,306 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 14:56:36,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:56:36,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621160864] [2023-12-09 14:56:36,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621160864] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:56:36,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:56:36,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:56:36,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137377676] [2023-12-09 14:56:36,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:56:36,307 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:56:36,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:56:36,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:56:36,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:56:36,308 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 91 [2023-12-09 14:56:36,309 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 454 transitions, 3344 flow. Second operand has 7 states, 7 states have (on average 68.28571428571429) internal successors, (478), 7 states have internal predecessors, (478), 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 14:56:36,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:56:36,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 91 [2023-12-09 14:56:36,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:56:36,705 INFO L124 PetriNetUnfolderBase]: 809/2461 cut-off events. [2023-12-09 14:56:36,706 INFO L125 PetriNetUnfolderBase]: For 556/1949 co-relation queries the response was YES. [2023-12-09 14:56:36,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8139 conditions, 2461 events. 809/2461 cut-off events. For 556/1949 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 21543 event pairs, 0 based on Foata normal form. 70/2506 useless extension candidates. Maximal degree in co-relation 8085. Up to 551 conditions per place. [2023-12-09 14:56:36,713 INFO L140 encePairwiseOnDemand]: 80/91 looper letters, 48 selfloop transitions, 20 changer transitions 407/528 dead transitions. [2023-12-09 14:56:36,713 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 528 transitions, 4886 flow [2023-12-09 14:56:36,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 14:56:36,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 14:56:36,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 960 transitions. [2023-12-09 14:56:36,716 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8114961961115807 [2023-12-09 14:56:36,716 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 960 transitions. [2023-12-09 14:56:36,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 960 transitions. [2023-12-09 14:56:36,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:56:36,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 960 transitions. [2023-12-09 14:56:36,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 73.84615384615384) internal successors, (960), 13 states have internal predecessors, (960), 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 14:56:36,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 91.0) internal successors, (1274), 14 states have internal predecessors, (1274), 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 14:56:36,721 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 91.0) internal successors, (1274), 14 states have internal predecessors, (1274), 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 14:56:36,722 INFO L308 CegarLoopForPetriNet]: 82 programPoint places, 44 predicate places. [2023-12-09 14:56:36,722 INFO L500 AbstractCegarLoop]: Abstraction has has 126 places, 528 transitions, 4886 flow [2023-12-09 14:56:36,724 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 68.28571428571429) internal successors, (478), 7 states have internal predecessors, (478), 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 14:56:36,724 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:56:36,724 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] [2023-12-09 14:56:36,724 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-09 14:56:36,724 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 14:56:36,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:56:36,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1126185921, now seen corresponding path program 1 times [2023-12-09 14:56:36,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:56:36,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064340641] [2023-12-09 14:56:36,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:56:36,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:56:36,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:56:36,885 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 14:56:36,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:56:36,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064340641] [2023-12-09 14:56:36,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064340641] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:56:36,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:56:36,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 14:56:36,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111728978] [2023-12-09 14:56:36,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:56:36,887 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 14:56:36,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:56:36,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 14:56:36,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-09 14:56:36,889 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 91 [2023-12-09 14:56:36,889 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 528 transitions, 4886 flow. Second operand has 8 states, 8 states have (on average 68.0) internal successors, (544), 8 states have internal predecessors, (544), 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 14:56:36,890 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:56:36,890 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 91 [2023-12-09 14:56:36,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:56:37,370 INFO L124 PetriNetUnfolderBase]: 894/2784 cut-off events. [2023-12-09 14:56:37,370 INFO L125 PetriNetUnfolderBase]: For 1017/3207 co-relation queries the response was YES. [2023-12-09 14:56:37,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10973 conditions, 2784 events. 894/2784 cut-off events. For 1017/3207 co-relation queries the response was YES. Maximal size of possible extension queue 247. Compared 25369 event pairs, 0 based on Foata normal form. 84/2845 useless extension candidates. Maximal degree in co-relation 10912. Up to 615 conditions per place. [2023-12-09 14:56:37,381 INFO L140 encePairwiseOnDemand]: 79/91 looper letters, 34 selfloop transitions, 11 changer transitions 592/690 dead transitions. [2023-12-09 14:56:37,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 690 transitions, 7780 flow [2023-12-09 14:56:37,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-09 14:56:37,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-12-09 14:56:37,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1228 transitions. [2023-12-09 14:56:37,385 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7937944408532643 [2023-12-09 14:56:37,385 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1228 transitions. [2023-12-09 14:56:37,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1228 transitions. [2023-12-09 14:56:37,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:56:37,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1228 transitions. [2023-12-09 14:56:37,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 72.23529411764706) internal successors, (1228), 17 states have internal predecessors, (1228), 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 14:56:37,390 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 91.0) internal successors, (1638), 18 states have internal predecessors, (1638), 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 14:56:37,391 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 91.0) internal successors, (1638), 18 states have internal predecessors, (1638), 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 14:56:37,393 INFO L308 CegarLoopForPetriNet]: 82 programPoint places, 60 predicate places. [2023-12-09 14:56:37,393 INFO L500 AbstractCegarLoop]: Abstraction has has 142 places, 690 transitions, 7780 flow [2023-12-09 14:56:37,393 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 68.0) internal successors, (544), 8 states have internal predecessors, (544), 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 14:56:37,393 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:56:37,393 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 14:56:37,393 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-09 14:56:37,394 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 14:56:37,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:56:37,394 INFO L85 PathProgramCache]: Analyzing trace with hash 696726492, now seen corresponding path program 1 times [2023-12-09 14:56:37,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:56:37,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481943245] [2023-12-09 14:56:37,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:56:37,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:56:37,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:56:37,526 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 14:56:37,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:56:37,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481943245] [2023-12-09 14:56:37,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481943245] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:56:37,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:56:37,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:56:37,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591501526] [2023-12-09 14:56:37,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:56:37,530 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:56:37,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:56:37,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:56:37,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:56:37,531 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 91 [2023-12-09 14:56:37,531 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 690 transitions, 7780 flow. Second operand has 7 states, 7 states have (on average 68.42857142857143) internal successors, (479), 7 states have internal predecessors, (479), 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 14:56:37,531 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:56:37,531 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 91 [2023-12-09 14:56:37,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:56:38,061 INFO L124 PetriNetUnfolderBase]: 1028/3483 cut-off events. [2023-12-09 14:56:38,061 INFO L125 PetriNetUnfolderBase]: For 1492/3989 co-relation queries the response was YES. [2023-12-09 14:56:38,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14989 conditions, 3483 events. 1028/3483 cut-off events. For 1492/3989 co-relation queries the response was YES. Maximal size of possible extension queue 333. Compared 35251 event pairs, 0 based on Foata normal form. 97/3563 useless extension candidates. Maximal degree in co-relation 14921. Up to 820 conditions per place. [2023-12-09 14:56:38,075 INFO L140 encePairwiseOnDemand]: 80/91 looper letters, 35 selfloop transitions, 15 changer transitions 882/985 dead transitions. [2023-12-09 14:56:38,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 985 transitions, 13190 flow [2023-12-09 14:56:38,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 14:56:38,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 14:56:38,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 953 transitions. [2023-12-09 14:56:38,077 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8055790363482671 [2023-12-09 14:56:38,077 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 953 transitions. [2023-12-09 14:56:38,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 953 transitions. [2023-12-09 14:56:38,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:56:38,078 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 953 transitions. [2023-12-09 14:56:38,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 73.3076923076923) internal successors, (953), 13 states have internal predecessors, (953), 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 14:56:38,081 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 91.0) internal successors, (1274), 14 states have internal predecessors, (1274), 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 14:56:38,081 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 91.0) internal successors, (1274), 14 states have internal predecessors, (1274), 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 14:56:38,081 INFO L308 CegarLoopForPetriNet]: 82 programPoint places, 72 predicate places. [2023-12-09 14:56:38,082 INFO L500 AbstractCegarLoop]: Abstraction has has 154 places, 985 transitions, 13190 flow [2023-12-09 14:56:38,082 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 68.42857142857143) internal successors, (479), 7 states have internal predecessors, (479), 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 14:56:38,082 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:56:38,082 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] [2023-12-09 14:56:38,082 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-09 14:56:38,082 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 14:56:38,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:56:38,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1980546395, now seen corresponding path program 1 times [2023-12-09 14:56:38,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:56:38,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922142178] [2023-12-09 14:56:38,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:56:38,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:56:38,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:56:38,183 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 14:56:38,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:56:38,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922142178] [2023-12-09 14:56:38,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922142178] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:56:38,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:56:38,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:56:38,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591817468] [2023-12-09 14:56:38,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:56:38,184 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:56:38,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:56:38,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:56:38,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:56:38,185 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 91 [2023-12-09 14:56:38,186 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 985 transitions, 13190 flow. Second operand has 7 states, 7 states have (on average 72.14285714285714) internal successors, (505), 7 states have internal predecessors, (505), 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 14:56:38,186 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:56:38,186 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 91 [2023-12-09 14:56:38,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:56:38,862 INFO L124 PetriNetUnfolderBase]: 1184/4350 cut-off events. [2023-12-09 14:56:38,862 INFO L125 PetriNetUnfolderBase]: For 3178/10038 co-relation queries the response was YES. [2023-12-09 14:56:38,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20180 conditions, 4350 events. 1184/4350 cut-off events. For 3178/10038 co-relation queries the response was YES. Maximal size of possible extension queue 454. Compared 48167 event pairs, 0 based on Foata normal form. 119/4438 useless extension candidates. Maximal degree in co-relation 20107. Up to 969 conditions per place. [2023-12-09 14:56:38,884 INFO L140 encePairwiseOnDemand]: 82/91 looper letters, 23 selfloop transitions, 6 changer transitions 1050/1139 dead transitions. [2023-12-09 14:56:38,885 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 1139 transitions, 17041 flow [2023-12-09 14:56:38,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 14:56:38,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 14:56:38,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 979 transitions. [2023-12-09 14:56:38,887 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8275570583262891 [2023-12-09 14:56:38,887 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 979 transitions. [2023-12-09 14:56:38,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 979 transitions. [2023-12-09 14:56:38,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:56:38,888 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 979 transitions. [2023-12-09 14:56:38,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 75.3076923076923) internal successors, (979), 13 states have internal predecessors, (979), 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 14:56:38,891 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 91.0) internal successors, (1274), 14 states have internal predecessors, (1274), 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 14:56:38,891 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 91.0) internal successors, (1274), 14 states have internal predecessors, (1274), 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 14:56:38,892 INFO L308 CegarLoopForPetriNet]: 82 programPoint places, 84 predicate places. [2023-12-09 14:56:38,893 INFO L500 AbstractCegarLoop]: Abstraction has has 166 places, 1139 transitions, 17041 flow [2023-12-09 14:56:38,893 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 72.14285714285714) internal successors, (505), 7 states have internal predecessors, (505), 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 14:56:38,893 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:56:38,893 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] [2023-12-09 14:56:38,893 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-09 14:56:38,893 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 14:56:38,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:56:38,894 INFO L85 PathProgramCache]: Analyzing trace with hash 2124844399, now seen corresponding path program 2 times [2023-12-09 14:56:38,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:56:38,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22630397] [2023-12-09 14:56:38,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:56:38,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:56:38,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:56:39,031 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 14:56:39,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:56:39,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22630397] [2023-12-09 14:56:39,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22630397] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:56:39,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:56:39,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 14:56:39,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946355129] [2023-12-09 14:56:39,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:56:39,033 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 14:56:39,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:56:39,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 14:56:39,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-09 14:56:39,034 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 91 [2023-12-09 14:56:39,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 1139 transitions, 17041 flow. Second operand has 8 states, 8 states have (on average 68.25) internal successors, (546), 8 states have internal predecessors, (546), 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 14:56:39,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:56:39,034 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 91 [2023-12-09 14:56:39,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:56:39,909 INFO L124 PetriNetUnfolderBase]: 1191/4599 cut-off events. [2023-12-09 14:56:39,910 INFO L125 PetriNetUnfolderBase]: For 4118/11277 co-relation queries the response was YES. [2023-12-09 14:56:39,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23437 conditions, 4599 events. 1191/4599 cut-off events. For 4118/11277 co-relation queries the response was YES. Maximal size of possible extension queue 499. Compared 52403 event pairs, 0 based on Foata normal form. 312/4888 useless extension candidates. Maximal degree in co-relation 23357. Up to 1008 conditions per place. [2023-12-09 14:56:39,927 INFO L140 encePairwiseOnDemand]: 80/91 looper letters, 20 selfloop transitions, 5 changer transitions 1153/1231 dead transitions. [2023-12-09 14:56:39,927 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 1231 transitions, 20815 flow [2023-12-09 14:56:39,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-09 14:56:39,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-12-09 14:56:39,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1516 transitions. [2023-12-09 14:56:39,930 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7933019361590791 [2023-12-09 14:56:39,930 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1516 transitions. [2023-12-09 14:56:39,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1516 transitions. [2023-12-09 14:56:39,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:56:39,931 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1516 transitions. [2023-12-09 14:56:39,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 72.19047619047619) internal successors, (1516), 21 states have internal predecessors, (1516), 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 14:56:39,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 91.0) internal successors, (2002), 22 states have internal predecessors, (2002), 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 14:56:39,936 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 91.0) internal successors, (2002), 22 states have internal predecessors, (2002), 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 14:56:39,936 INFO L308 CegarLoopForPetriNet]: 82 programPoint places, 104 predicate places. [2023-12-09 14:56:39,936 INFO L500 AbstractCegarLoop]: Abstraction has has 186 places, 1231 transitions, 20815 flow [2023-12-09 14:56:39,937 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 68.25) internal successors, (546), 8 states have internal predecessors, (546), 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 14:56:39,937 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:56:39,937 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, 1, 1, 1, 1, 1, 1] [2023-12-09 14:56:39,937 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-09 14:56:39,937 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 14:56:39,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:56:39,937 INFO L85 PathProgramCache]: Analyzing trace with hash 917648721, now seen corresponding path program 3 times [2023-12-09 14:56:39,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:56:39,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904042717] [2023-12-09 14:56:39,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:56:39,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:56:39,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:56:40,029 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 14:56:40,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:56:40,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904042717] [2023-12-09 14:56:40,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904042717] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:56:40,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:56:40,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 14:56:40,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566536087] [2023-12-09 14:56:40,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:56:40,030 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 14:56:40,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:56:40,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 14:56:40,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-09 14:56:40,031 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 91 [2023-12-09 14:56:40,032 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 1231 transitions, 20815 flow. Second operand has 6 states, 6 states have (on average 74.0) internal successors, (444), 6 states have internal predecessors, (444), 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 14:56:40,032 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:56:40,032 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 91 [2023-12-09 14:56:40,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:56:41,287 INFO L124 PetriNetUnfolderBase]: 2794/7751 cut-off events. [2023-12-09 14:56:41,287 INFO L125 PetriNetUnfolderBase]: For 8057/10295 co-relation queries the response was YES. [2023-12-09 14:56:41,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28712 conditions, 7751 events. 2794/7751 cut-off events. For 8057/10295 co-relation queries the response was YES. Maximal size of possible extension queue 636. Compared 86715 event pairs, 88 based on Foata normal form. 64/7418 useless extension candidates. Maximal degree in co-relation 28628. Up to 2149 conditions per place. [2023-12-09 14:56:41,325 INFO L140 encePairwiseOnDemand]: 81/91 looper letters, 17 selfloop transitions, 5 changer transitions 687/789 dead transitions. [2023-12-09 14:56:41,326 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 789 transitions, 12778 flow [2023-12-09 14:56:41,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-09 14:56:41,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-12-09 14:56:41,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 770 transitions. [2023-12-09 14:56:41,328 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8461538461538461 [2023-12-09 14:56:41,328 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 770 transitions. [2023-12-09 14:56:41,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 770 transitions. [2023-12-09 14:56:41,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:56:41,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 770 transitions. [2023-12-09 14:56:41,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 77.0) internal successors, (770), 10 states have internal predecessors, (770), 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 14:56:41,331 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 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 14:56:41,331 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 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 14:56:41,332 INFO L308 CegarLoopForPetriNet]: 82 programPoint places, 113 predicate places. [2023-12-09 14:56:41,332 INFO L500 AbstractCegarLoop]: Abstraction has has 195 places, 789 transitions, 12778 flow [2023-12-09 14:56:41,332 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.0) internal successors, (444), 6 states have internal predecessors, (444), 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 14:56:41,332 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:56:41,332 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 14:56:41,332 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-09 14:56:41,332 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 14:56:41,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:56:41,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1267327490, now seen corresponding path program 1 times [2023-12-09 14:56:41,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:56:41,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846870712] [2023-12-09 14:56:41,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:56:41,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:56:41,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:56:41,443 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 14:56:41,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:56:41,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846870712] [2023-12-09 14:56:41,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846870712] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:56:41,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:56:41,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:56:41,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602192928] [2023-12-09 14:56:41,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:56:41,445 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:56:41,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:56:41,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:56:41,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:56:41,449 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 91 [2023-12-09 14:56:41,450 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 789 transitions, 12778 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 14:56:41,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:56:41,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 91 [2023-12-09 14:56:41,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:56:42,145 INFO L124 PetriNetUnfolderBase]: 1905/5290 cut-off events. [2023-12-09 14:56:42,145 INFO L125 PetriNetUnfolderBase]: For 5827/7807 co-relation queries the response was YES. [2023-12-09 14:56:42,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17557 conditions, 5290 events. 1905/5290 cut-off events. For 5827/7807 co-relation queries the response was YES. Maximal size of possible extension queue 650. Compared 56540 event pairs, 0 based on Foata normal form. 329/5351 useless extension candidates. Maximal degree in co-relation 17469. Up to 1591 conditions per place. [2023-12-09 14:56:42,175 INFO L140 encePairwiseOnDemand]: 81/91 looper letters, 16 selfloop transitions, 9 changer transitions 355/440 dead transitions. [2023-12-09 14:56:42,175 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 440 transitions, 6258 flow [2023-12-09 14:56:42,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 14:56:42,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 14:56:42,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1001 transitions. [2023-12-09 14:56:42,178 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8461538461538461 [2023-12-09 14:56:42,179 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1001 transitions. [2023-12-09 14:56:42,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1001 transitions. [2023-12-09 14:56:42,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:56:42,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1001 transitions. [2023-12-09 14:56:42,183 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 77.0) internal successors, (1001), 13 states have internal predecessors, (1001), 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 14:56:42,185 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 91.0) internal successors, (1274), 14 states have internal predecessors, (1274), 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 14:56:42,185 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 91.0) internal successors, (1274), 14 states have internal predecessors, (1274), 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 14:56:42,186 INFO L308 CegarLoopForPetriNet]: 82 programPoint places, 113 predicate places. [2023-12-09 14:56:42,186 INFO L500 AbstractCegarLoop]: Abstraction has has 195 places, 440 transitions, 6258 flow [2023-12-09 14:56:42,186 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 14:56:42,186 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:56:42,186 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 14:56:42,186 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-09 14:56:42,186 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-12-09 14:56:42,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:56:42,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1845801331, now seen corresponding path program 1 times [2023-12-09 14:56:42,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:56:42,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900699746] [2023-12-09 14:56:42,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:56:42,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:56:42,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:56:42,399 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 14:56:42,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:56:42,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900699746] [2023-12-09 14:56:42,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900699746] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:56:42,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:56:42,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 14:56:42,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50212476] [2023-12-09 14:56:42,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:56:42,400 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 14:56:42,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:56:42,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 14:56:42,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-09 14:56:42,401 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 91 [2023-12-09 14:56:42,401 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 440 transitions, 6258 flow. Second operand has 8 states, 8 states have (on average 73.75) internal successors, (590), 8 states have internal predecessors, (590), 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 14:56:42,401 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:56:42,401 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 91 [2023-12-09 14:56:42,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:56:42,877 INFO L124 PetriNetUnfolderBase]: 1710/4313 cut-off events. [2023-12-09 14:56:42,877 INFO L125 PetriNetUnfolderBase]: For 4507/7644 co-relation queries the response was YES. [2023-12-09 14:56:42,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15742 conditions, 4313 events. 1710/4313 cut-off events. For 4507/7644 co-relation queries the response was YES. Maximal size of possible extension queue 647. Compared 44822 event pairs, 0 based on Foata normal form. 521/4571 useless extension candidates. Maximal degree in co-relation 15650. Up to 1369 conditions per place. [2023-12-09 14:56:42,898 INFO L140 encePairwiseOnDemand]: 81/91 looper letters, 0 selfloop transitions, 0 changer transitions 293/293 dead transitions. [2023-12-09 14:56:42,898 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 293 transitions, 3680 flow [2023-12-09 14:56:42,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-09 14:56:42,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-12-09 14:56:42,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1216 transitions. [2023-12-09 14:56:42,900 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8351648351648352 [2023-12-09 14:56:42,900 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1216 transitions. [2023-12-09 14:56:42,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1216 transitions. [2023-12-09 14:56:42,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:56:42,901 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1216 transitions. [2023-12-09 14:56:42,902 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 76.0) internal successors, (1216), 16 states have internal predecessors, (1216), 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 14:56:42,904 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 91.0) internal successors, (1547), 17 states have internal predecessors, (1547), 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 14:56:42,904 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 91.0) internal successors, (1547), 17 states have internal predecessors, (1547), 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 14:56:42,905 INFO L308 CegarLoopForPetriNet]: 82 programPoint places, 99 predicate places. [2023-12-09 14:56:42,905 INFO L500 AbstractCegarLoop]: Abstraction has has 181 places, 293 transitions, 3680 flow [2023-12-09 14:56:42,905 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 73.75) internal successors, (590), 8 states have internal predecessors, (590), 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 14:56:42,910 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/safe001_tso.i_BEv2_AllErrorsAtOnce [2023-12-09 14:56:42,959 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-12-09 14:56:42,960 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-12-09 14:56:42,960 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-12-09 14:56:42,960 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-12-09 14:56:42,960 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-09 14:56:42,961 INFO L457 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:56:42,963 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 14:56:42,963 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 14:56:42,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 02:56:42 BasicIcfg [2023-12-09 14:56:42,967 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 14:56:42,967 INFO L158 Benchmark]: Toolchain (without parser) took 9971.62ms. Allocated memory was 185.6MB in the beginning and 1.1GB in the end (delta: 875.6MB). Free memory was 146.1MB in the beginning and 536.9MB in the end (delta: -390.8MB). Peak memory consumption was 484.1MB. Max. memory is 8.0GB. [2023-12-09 14:56:42,968 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 185.6MB. Free memory was 143.7MB in the beginning and 143.4MB in the end (delta: 228.4kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 14:56:42,968 INFO L158 Benchmark]: CACSL2BoogieTranslator took 366.68ms. Allocated memory is still 185.6MB. Free memory was 146.1MB in the beginning and 125.5MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-12-09 14:56:42,968 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.38ms. Allocated memory is still 185.6MB. Free memory was 125.5MB in the beginning and 123.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 14:56:42,968 INFO L158 Benchmark]: Boogie Preprocessor took 25.83ms. Allocated memory is still 185.6MB. Free memory was 123.5MB in the beginning and 122.0MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-09 14:56:42,968 INFO L158 Benchmark]: RCFGBuilder took 298.94ms. Allocated memory is still 185.6MB. Free memory was 122.0MB in the beginning and 108.3MB in the end (delta: 13.8MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-09 14:56:42,968 INFO L158 Benchmark]: TraceAbstraction took 9245.14ms. Allocated memory was 185.6MB in the beginning and 1.1GB in the end (delta: 875.6MB). Free memory was 107.3MB in the beginning and 536.9MB in the end (delta: -429.6MB). Peak memory consumption was 445.3MB. Max. memory is 8.0GB. [2023-12-09 14:56:42,969 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 185.6MB. Free memory was 143.7MB in the beginning and 143.4MB in the end (delta: 228.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 366.68ms. Allocated memory is still 185.6MB. Free memory was 146.1MB in the beginning and 125.5MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 30.38ms. Allocated memory is still 185.6MB. Free memory was 125.5MB in the beginning and 123.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.83ms. Allocated memory is still 185.6MB. Free memory was 123.5MB in the beginning and 122.0MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 298.94ms. Allocated memory is still 185.6MB. Free memory was 122.0MB in the beginning and 108.3MB in the end (delta: 13.8MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 9245.14ms. Allocated memory was 185.6MB in the beginning and 1.1GB in the end (delta: 875.6MB). Free memory was 107.3MB in the beginning and 536.9MB in the end (delta: -429.6MB). Peak memory consumption was 445.3MB. 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, 117 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: 9.2s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 6.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 775 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 775 mSDsluCounter, 1033 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 759 mSDsCounter, 59 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 967 IncrementalHoareTripleChecker+Invalid, 1026 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 59 mSolverCounterUnsat, 274 mSDtfsCounter, 967 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 179 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20815occurred in iteration=8, InterpolantAutomatonStates: 151, 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, 1.8s InterpolantComputationTime, 617 NumberOfCodeBlocks, 617 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 606 ConstructedInterpolants, 0 QuantifiedInterpolants, 2984 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 14:56:42,982 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...