/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/safe004_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 14:56:50,310 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 14:56:50,362 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 14:56:50,384 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 14:56:50,385 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 14:56:50,385 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 14:56:50,386 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 14:56:50,386 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 14:56:50,386 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 14:56:50,387 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 14:56:50,388 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 14:56:50,388 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 14:56:50,388 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 14:56:50,388 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 14:56:50,388 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 14:56:50,389 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 14:56:50,389 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 14:56:50,389 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 14:56:50,389 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 14:56:50,389 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 14:56:50,390 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 14:56:50,391 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 14:56:50,391 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 14:56:50,391 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 14:56:50,391 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 14:56:50,391 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 14:56:50,391 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 14:56:50,392 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 14:56:50,392 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 14:56:50,392 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 14:56:50,392 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 14:56:50,392 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 14:56:50,392 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 14:56:50,392 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 14:56:50,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 14:56:50,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 14:56:50,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 14:56:50,568 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 14:56:50,568 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 14:56:50,569 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe004_tso.i [2023-12-09 14:56:51,728 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 14:56:51,939 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 14:56:51,939 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe004_tso.i [2023-12-09 14:56:51,968 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d98ae9b9c/327f8af0319f4675aa9efa7b8a3c443a/FLAG0c9287864 [2023-12-09 14:56:51,978 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d98ae9b9c/327f8af0319f4675aa9efa7b8a3c443a [2023-12-09 14:56:51,980 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 14:56:51,981 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 14:56:51,982 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 14:56:51,982 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 14:56:51,986 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 14:56:51,987 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:56:51" (1/1) ... [2023-12-09 14:56:51,987 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c7b8d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:56:51, skipping insertion in model container [2023-12-09 14:56:51,988 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:56:51" (1/1) ... [2023-12-09 14:56:52,031 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 14:56:52,145 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/safe004_tso.i[945,958] [2023-12-09 14:56:52,287 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 14:56:52,295 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 14:56:52,305 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/safe004_tso.i[945,958] [2023-12-09 14:56:52,350 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 14:56:52,372 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 14:56:52,372 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 14:56:52,377 INFO L206 MainTranslator]: Completed translation [2023-12-09 14:56:52,379 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:56:52 WrapperNode [2023-12-09 14:56:52,379 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 14:56:52,380 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 14:56:52,381 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 14:56:52,381 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 14:56:52,386 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:56:52" (1/1) ... [2023-12-09 14:56:52,408 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:56:52" (1/1) ... [2023-12-09 14:56:52,427 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 69 [2023-12-09 14:56:52,428 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 14:56:52,429 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 14:56:52,429 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 14:56:52,429 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 14:56:52,435 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:56:52" (1/1) ... [2023-12-09 14:56:52,436 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:56:52" (1/1) ... [2023-12-09 14:56:52,450 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:56:52" (1/1) ... [2023-12-09 14:56:52,451 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:56:52" (1/1) ... [2023-12-09 14:56:52,454 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:56:52" (1/1) ... [2023-12-09 14:56:52,455 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:56:52" (1/1) ... [2023-12-09 14:56:52,456 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:56:52" (1/1) ... [2023-12-09 14:56:52,457 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:56:52" (1/1) ... [2023-12-09 14:56:52,459 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 14:56:52,459 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 14:56:52,459 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 14:56:52,460 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 14:56:52,460 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:56:52" (1/1) ... [2023-12-09 14:56:52,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 14:56:52,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 14:56:52,522 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 14:56:52,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 14:56:52,556 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-09 14:56:52,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 14:56:52,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 14:56:52,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 14:56:52,557 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-12-09 14:56:52,557 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-12-09 14:56:52,557 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-12-09 14:56:52,557 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-12-09 14:56:52,557 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-12-09 14:56:52,557 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-12-09 14:56:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 14:56:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-09 14:56:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 14:56:52,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 14:56:52,559 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 14:56:52,544 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 14:56:52,648 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 14:56:52,649 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 14:56:52,831 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 14:56:52,838 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 14:56:52,838 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-09 14:56:52,840 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:56:52 BoogieIcfgContainer [2023-12-09 14:56:52,840 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 14:56:52,841 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 14:56:52,841 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 14:56:52,844 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 14:56:52,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 02:56:51" (1/3) ... [2023-12-09 14:56:52,844 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf8dfb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:56:52, skipping insertion in model container [2023-12-09 14:56:52,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:56:52" (2/3) ... [2023-12-09 14:56:52,844 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf8dfb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:56:52, skipping insertion in model container [2023-12-09 14:56:52,845 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:56:52" (3/3) ... [2023-12-09 14:56:52,845 INFO L112 eAbstractionObserver]: Analyzing ICFG safe004_tso.i [2023-12-09 14:56:52,858 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 14:56:52,858 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 14:56:52,859 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 14:56:52,906 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-09 14:56:52,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 91 transitions, 194 flow [2023-12-09 14:56:52,987 INFO L124 PetriNetUnfolderBase]: 2/88 cut-off events. [2023-12-09 14:56:52,988 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-09 14:56:53,008 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 14:56:53,009 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 91 transitions, 194 flow [2023-12-09 14:56:53,011 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 73 transitions, 155 flow [2023-12-09 14:56:53,018 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 14:56:53,022 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;@1eec6834, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 14:56:53,022 INFO L363 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-12-09 14:56:53,045 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 14:56:53,045 INFO L124 PetriNetUnfolderBase]: 1/72 cut-off events. [2023-12-09 14:56:53,045 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-09 14:56:53,045 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:56:53,046 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 14:56:53,046 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 14:56:53,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:56:53,054 INFO L85 PathProgramCache]: Analyzing trace with hash -70594859, now seen corresponding path program 1 times [2023-12-09 14:56:53,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:56:53,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898387658] [2023-12-09 14:56:53,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:56:53,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:56:53,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:56:53,602 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 14:56:53,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:56:53,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898387658] [2023-12-09 14:56:53,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898387658] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:56:53,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:56:53,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 14:56:53,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79558996] [2023-12-09 14:56:53,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:56:53,615 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 14:56:53,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:56:53,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 14:56:53,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-09 14:56:53,642 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 91 [2023-12-09 14:56:53,645 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 73 transitions, 155 flow. Second operand has 6 states, 6 states have (on average 72.66666666666667) internal successors, (436), 6 states have internal predecessors, (436), 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 14:56:53,645 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:56:53,645 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 91 [2023-12-09 14:56:53,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:56:53,940 INFO L124 PetriNetUnfolderBase]: 145/510 cut-off events. [2023-12-09 14:56:53,941 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-12-09 14:56:53,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 787 conditions, 510 events. 145/510 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2872 event pairs, 15 based on Foata normal form. 15/512 useless extension candidates. Maximal degree in co-relation 757. Up to 134 conditions per place. [2023-12-09 14:56:53,949 INFO L140 encePairwiseOnDemand]: 83/91 looper letters, 17 selfloop transitions, 3 changer transitions 31/109 dead transitions. [2023-12-09 14:56:53,949 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 109 transitions, 335 flow [2023-12-09 14:56:53,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-09 14:56:53,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-12-09 14:56:53,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 694 transitions. [2023-12-09 14:56:53,964 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8473748473748474 [2023-12-09 14:56:53,965 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 694 transitions. [2023-12-09 14:56:53,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 694 transitions. [2023-12-09 14:56:53,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:56:53,969 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 694 transitions. [2023-12-09 14:56:53,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 77.11111111111111) internal successors, (694), 9 states have internal predecessors, (694), 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 14:56:53,977 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 14:56:53,977 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 14:56:53,980 INFO L308 CegarLoopForPetriNet]: 82 programPoint places, 8 predicate places. [2023-12-09 14:56:53,980 INFO L500 AbstractCegarLoop]: Abstraction has has 90 places, 109 transitions, 335 flow [2023-12-09 14:56:53,981 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.66666666666667) internal successors, (436), 6 states have internal predecessors, (436), 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 14:56:53,981 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:56:53,981 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 14:56:53,981 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 14:56:53,981 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 14:56:53,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:56:53,982 INFO L85 PathProgramCache]: Analyzing trace with hash -126263274, now seen corresponding path program 1 times [2023-12-09 14:56:53,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:56:53,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500662547] [2023-12-09 14:56:53,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:56:53,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:56:54,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:56:54,211 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 14:56:54,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:56:54,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500662547] [2023-12-09 14:56:54,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500662547] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:56:54,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:56:54,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 14:56:54,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758971948] [2023-12-09 14:56:54,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:56:54,214 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 14:56:54,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:56:54,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 14:56:54,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-09 14:56:54,216 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 91 [2023-12-09 14:56:54,217 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 109 transitions, 335 flow. Second operand has 6 states, 6 states have (on average 75.66666666666667) internal successors, (454), 6 states have internal predecessors, (454), 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 14:56:54,217 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:56:54,217 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 91 [2023-12-09 14:56:54,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:56:54,385 INFO L124 PetriNetUnfolderBase]: 202/704 cut-off events. [2023-12-09 14:56:54,386 INFO L125 PetriNetUnfolderBase]: For 98/110 co-relation queries the response was YES. [2023-12-09 14:56:54,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1256 conditions, 704 events. 202/704 cut-off events. For 98/110 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 4670 event pairs, 43 based on Foata normal form. 9/703 useless extension candidates. Maximal degree in co-relation 1222. Up to 172 conditions per place. [2023-12-09 14:56:54,390 INFO L140 encePairwiseOnDemand]: 85/91 looper letters, 11 selfloop transitions, 3 changer transitions 54/132 dead transitions. [2023-12-09 14:56:54,390 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 132 transitions, 527 flow [2023-12-09 14:56:54,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-09 14:56:54,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-12-09 14:56:54,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 689 transitions. [2023-12-09 14:56:54,393 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8412698412698413 [2023-12-09 14:56:54,393 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 689 transitions. [2023-12-09 14:56:54,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 689 transitions. [2023-12-09 14:56:54,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:56:54,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 689 transitions. [2023-12-09 14:56:54,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 76.55555555555556) internal successors, (689), 9 states have internal predecessors, (689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:56:54,397 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 14:56:54,398 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 14:56:54,398 INFO L308 CegarLoopForPetriNet]: 82 programPoint places, 16 predicate places. [2023-12-09 14:56:54,398 INFO L500 AbstractCegarLoop]: Abstraction has has 98 places, 132 transitions, 527 flow [2023-12-09 14:56:54,399 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.66666666666667) internal successors, (454), 6 states have internal predecessors, (454), 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 14:56:54,399 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:56:54,399 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:56:54,399 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 14:56:54,400 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 14:56:54,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:56:54,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1557796951, now seen corresponding path program 1 times [2023-12-09 14:56:54,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:56:54,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416792184] [2023-12-09 14:56:54,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:56:54,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:56:54,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:56:54,663 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 14:56:54,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:56:54,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416792184] [2023-12-09 14:56:54,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416792184] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:56:54,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:56:54,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:56:54,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277223491] [2023-12-09 14:56:54,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:56:54,666 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:56:54,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:56:54,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:56:54,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:56:54,670 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 91 [2023-12-09 14:56:54,671 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 132 transitions, 527 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 14:56:54,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:56:54,671 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 91 [2023-12-09 14:56:54,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:56:55,119 INFO L124 PetriNetUnfolderBase]: 1218/3007 cut-off events. [2023-12-09 14:56:55,120 INFO L125 PetriNetUnfolderBase]: For 937/1130 co-relation queries the response was YES. [2023-12-09 14:56:55,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7318 conditions, 3007 events. 1218/3007 cut-off events. For 937/1130 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 24762 event pairs, 11 based on Foata normal form. 31/3011 useless extension candidates. Maximal degree in co-relation 7277. Up to 682 conditions per place. [2023-12-09 14:56:55,133 INFO L140 encePairwiseOnDemand]: 79/91 looper letters, 32 selfloop transitions, 13 changer transitions 276/374 dead transitions. [2023-12-09 14:56:55,134 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 374 transitions, 2395 flow [2023-12-09 14:56:55,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 14:56:55,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 14:56:55,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 956 transitions. [2023-12-09 14:56:55,136 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8081149619611158 [2023-12-09 14:56:55,136 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 956 transitions. [2023-12-09 14:56:55,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 956 transitions. [2023-12-09 14:56:55,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:56:55,137 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 956 transitions. [2023-12-09 14:56:55,139 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 73.53846153846153) internal successors, (956), 13 states have internal predecessors, (956), 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 14:56:55,141 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 14:56:55,141 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 14:56:55,142 INFO L308 CegarLoopForPetriNet]: 82 programPoint places, 28 predicate places. [2023-12-09 14:56:55,143 INFO L500 AbstractCegarLoop]: Abstraction has has 110 places, 374 transitions, 2395 flow [2023-12-09 14:56:55,143 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 14:56:55,143 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:56:55,143 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 14:56:55,143 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-09 14:56:55,143 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 14:56:55,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:56:55,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1543552184, now seen corresponding path program 1 times [2023-12-09 14:56:55,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:56:55,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981027521] [2023-12-09 14:56:55,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:56:55,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:56:55,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:56:55,337 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 14:56:55,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:56:55,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981027521] [2023-12-09 14:56:55,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981027521] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:56:55,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:56:55,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 14:56:55,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493683342] [2023-12-09 14:56:55,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:56:55,341 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 14:56:55,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:56:55,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 14:56:55,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-09 14:56:55,343 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 91 [2023-12-09 14:56:55,343 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 374 transitions, 2395 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 14:56:55,343 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:56:55,344 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 91 [2023-12-09 14:56:55,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:56:56,241 INFO L124 PetriNetUnfolderBase]: 1800/5082 cut-off events. [2023-12-09 14:56:56,241 INFO L125 PetriNetUnfolderBase]: For 2040/7502 co-relation queries the response was YES. [2023-12-09 14:56:56,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14995 conditions, 5082 events. 1800/5082 cut-off events. For 2040/7502 co-relation queries the response was YES. Maximal size of possible extension queue 518. Compared 51896 event pairs, 14 based on Foata normal form. 120/5164 useless extension candidates. Maximal degree in co-relation 14947. Up to 1269 conditions per place. [2023-12-09 14:56:56,264 INFO L140 encePairwiseOnDemand]: 80/91 looper letters, 33 selfloop transitions, 17 changer transitions 631/734 dead transitions. [2023-12-09 14:56:56,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 734 transitions, 6058 flow [2023-12-09 14:56:56,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-09 14:56:56,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2023-12-09 14:56:56,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 1814 transitions. [2023-12-09 14:56:56,269 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7973626373626373 [2023-12-09 14:56:56,270 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 1814 transitions. [2023-12-09 14:56:56,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 1814 transitions. [2023-12-09 14:56:56,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:56:56,271 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 1814 transitions. [2023-12-09 14:56:56,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 72.56) internal successors, (1814), 25 states have internal predecessors, (1814), 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 14:56:56,278 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 91.0) internal successors, (2366), 26 states have internal predecessors, (2366), 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 14:56:56,279 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 91.0) internal successors, (2366), 26 states have internal predecessors, (2366), 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 14:56:56,281 INFO L308 CegarLoopForPetriNet]: 82 programPoint places, 52 predicate places. [2023-12-09 14:56:56,281 INFO L500 AbstractCegarLoop]: Abstraction has has 134 places, 734 transitions, 6058 flow [2023-12-09 14:56:56,282 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 14:56:56,282 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:56:56,282 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 14:56:56,283 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-09 14:56:56,283 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 14:56:56,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:56:56,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1227263688, now seen corresponding path program 2 times [2023-12-09 14:56:56,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:56:56,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590763894] [2023-12-09 14:56:56,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:56:56,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:56:56,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:56:56,442 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 14:56:56,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:56:56,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590763894] [2023-12-09 14:56:56,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590763894] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:56:56,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:56:56,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:56:56,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486359992] [2023-12-09 14:56:56,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:56:56,444 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:56:56,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:56:56,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:56:56,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:56:56,446 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 91 [2023-12-09 14:56:56,447 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 734 transitions, 6058 flow. Second operand has 7 states, 7 states have (on average 71.85714285714286) internal successors, (503), 7 states have internal predecessors, (503), 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 14:56:56,447 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:56:56,447 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 91 [2023-12-09 14:56:56,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:56:57,144 INFO L124 PetriNetUnfolderBase]: 1921/5248 cut-off events. [2023-12-09 14:56:57,145 INFO L125 PetriNetUnfolderBase]: For 3600/10274 co-relation queries the response was YES. [2023-12-09 14:56:57,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18608 conditions, 5248 events. 1921/5248 cut-off events. For 3600/10274 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 52922 event pairs, 0 based on Foata normal form. 93/5286 useless extension candidates. Maximal degree in co-relation 18555. Up to 1348 conditions per place. [2023-12-09 14:56:57,170 INFO L140 encePairwiseOnDemand]: 82/91 looper letters, 19 selfloop transitions, 4 changer transitions 785/866 dead transitions. [2023-12-09 14:56:57,170 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 866 transitions, 8584 flow [2023-12-09 14:56:57,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 14:56:57,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 14:56:57,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 979 transitions. [2023-12-09 14:56:57,172 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8275570583262891 [2023-12-09 14:56:57,172 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 979 transitions. [2023-12-09 14:56:57,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 979 transitions. [2023-12-09 14:56:57,173 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:56:57,173 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 979 transitions. [2023-12-09 14:56:57,175 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 14:56:57,177 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 14:56:57,177 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 14:56:57,179 INFO L308 CegarLoopForPetriNet]: 82 programPoint places, 64 predicate places. [2023-12-09 14:56:57,179 INFO L500 AbstractCegarLoop]: Abstraction has has 146 places, 866 transitions, 8584 flow [2023-12-09 14:56:57,179 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 71.85714285714286) internal successors, (503), 7 states have internal predecessors, (503), 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 14:56:57,179 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:56:57,179 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:56:57,180 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-09 14:56:57,180 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 14:56:57,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:56:57,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1957490333, now seen corresponding path program 1 times [2023-12-09 14:56:57,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:56:57,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173637771] [2023-12-09 14:56:57,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:56:57,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:56:57,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:56:57,323 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 14:56:57,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:56:57,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173637771] [2023-12-09 14:56:57,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173637771] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:56:57,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:56:57,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:56:57,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151633503] [2023-12-09 14:56:57,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:56:57,329 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:56:57,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:56:57,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:56:57,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:56:57,330 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 91 [2023-12-09 14:56:57,330 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 866 transitions, 8584 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 14:56:57,330 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:56:57,330 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 91 [2023-12-09 14:56:57,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:56:58,242 INFO L124 PetriNetUnfolderBase]: 1960/5507 cut-off events. [2023-12-09 14:56:58,242 INFO L125 PetriNetUnfolderBase]: For 4463/18500 co-relation queries the response was YES. [2023-12-09 14:56:58,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22882 conditions, 5507 events. 1960/5507 cut-off events. For 4463/18500 co-relation queries the response was YES. Maximal size of possible extension queue 576. Compared 56932 event pairs, 0 based on Foata normal form. 105/5582 useless extension candidates. Maximal degree in co-relation 22822. Up to 1405 conditions per place. [2023-12-09 14:56:58,267 INFO L140 encePairwiseOnDemand]: 80/91 looper letters, 20 selfloop transitions, 5 changer transitions 1323/1401 dead transitions. [2023-12-09 14:56:58,267 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 1401 transitions, 16640 flow [2023-12-09 14:56:58,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 14:56:58,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 14:56:58,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 944 transitions. [2023-12-09 14:56:58,269 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.797971259509721 [2023-12-09 14:56:58,269 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 944 transitions. [2023-12-09 14:56:58,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 944 transitions. [2023-12-09 14:56:58,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:56:58,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 944 transitions. [2023-12-09 14:56:58,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 72.61538461538461) internal successors, (944), 13 states have internal predecessors, (944), 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 14:56:58,273 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 14:56:58,274 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 14:56:58,275 INFO L308 CegarLoopForPetriNet]: 82 programPoint places, 76 predicate places. [2023-12-09 14:56:58,275 INFO L500 AbstractCegarLoop]: Abstraction has has 158 places, 1401 transitions, 16640 flow [2023-12-09 14:56:58,276 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 14:56:58,276 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:56:58,276 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 14:56:58,276 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-09 14:56:58,276 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 14:56:58,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:56:58,276 INFO L85 PathProgramCache]: Analyzing trace with hash 2103311771, now seen corresponding path program 1 times [2023-12-09 14:56:58,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:56:58,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884953211] [2023-12-09 14:56:58,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:56:58,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:56:58,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:56:58,409 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 14:56:58,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:56:58,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884953211] [2023-12-09 14:56:58,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884953211] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:56:58,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:56:58,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 14:56:58,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589198042] [2023-12-09 14:56:58,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:56:58,410 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 14:56:58,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:56:58,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 14:56:58,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-09 14:56:58,411 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 91 [2023-12-09 14:56:58,412 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 1401 transitions, 16640 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 14:56:58,412 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:56:58,412 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 91 [2023-12-09 14:56:58,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:56:59,733 INFO L124 PetriNetUnfolderBase]: 2179/5884 cut-off events. [2023-12-09 14:56:59,733 INFO L125 PetriNetUnfolderBase]: For 4803/6790 co-relation queries the response was YES. [2023-12-09 14:56:59,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19124 conditions, 5884 events. 2179/5884 cut-off events. For 4803/6790 co-relation queries the response was YES. Maximal size of possible extension queue 465. Compared 60091 event pairs, 50 based on Foata normal form. 47/5584 useless extension candidates. Maximal degree in co-relation 19060. Up to 1516 conditions per place. [2023-12-09 14:56:59,766 INFO L140 encePairwiseOnDemand]: 81/91 looper letters, 17 selfloop transitions, 5 changer transitions 653/755 dead transitions. [2023-12-09 14:56:59,766 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 755 transitions, 8496 flow [2023-12-09 14:56:59,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-09 14:56:59,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-12-09 14:56:59,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 770 transitions. [2023-12-09 14:56:59,768 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8461538461538461 [2023-12-09 14:56:59,768 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 770 transitions. [2023-12-09 14:56:59,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 770 transitions. [2023-12-09 14:56:59,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:56:59,769 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 770 transitions. [2023-12-09 14:56:59,770 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 14:56:59,771 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 14:56:59,772 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 14:56:59,773 INFO L308 CegarLoopForPetriNet]: 82 programPoint places, 85 predicate places. [2023-12-09 14:56:59,773 INFO L500 AbstractCegarLoop]: Abstraction has has 167 places, 755 transitions, 8496 flow [2023-12-09 14:56:59,773 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 14:56:59,774 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:56:59,774 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 14:56:59,774 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-09 14:56:59,774 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 14:56:59,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:56:59,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1157966214, now seen corresponding path program 1 times [2023-12-09 14:56:59,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:56:59,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101831723] [2023-12-09 14:56:59,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:56:59,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:56:59,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:56:59,871 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 14:56:59,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:56:59,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101831723] [2023-12-09 14:56:59,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101831723] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:56:59,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:56:59,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:56:59,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660146432] [2023-12-09 14:56:59,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:56:59,872 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:56:59,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:56:59,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:56:59,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:56:59,873 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 91 [2023-12-09 14:56:59,874 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 755 transitions, 8496 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 14:56:59,874 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:56:59,874 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 91 [2023-12-09 14:56:59,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:00,506 INFO L124 PetriNetUnfolderBase]: 1254/3658 cut-off events. [2023-12-09 14:57:00,506 INFO L125 PetriNetUnfolderBase]: For 3254/4818 co-relation queries the response was YES. [2023-12-09 14:57:00,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11089 conditions, 3658 events. 1254/3658 cut-off events. For 3254/4818 co-relation queries the response was YES. Maximal size of possible extension queue 474. Compared 36532 event pairs, 0 based on Foata normal form. 262/3693 useless extension candidates. Maximal degree in co-relation 11021. Up to 980 conditions per place. [2023-12-09 14:57:00,531 INFO L140 encePairwiseOnDemand]: 81/91 looper letters, 16 selfloop transitions, 9 changer transitions 312/397 dead transitions. [2023-12-09 14:57:00,531 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 397 transitions, 4006 flow [2023-12-09 14:57:00,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 14:57:00,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 14:57:00,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1001 transitions. [2023-12-09 14:57:00,535 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8461538461538461 [2023-12-09 14:57:00,535 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1001 transitions. [2023-12-09 14:57:00,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1001 transitions. [2023-12-09 14:57:00,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:00,536 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1001 transitions. [2023-12-09 14:57:00,539 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 14:57:00,540 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 14:57:00,541 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 14:57:00,542 INFO L308 CegarLoopForPetriNet]: 82 programPoint places, 82 predicate places. [2023-12-09 14:57:00,542 INFO L500 AbstractCegarLoop]: Abstraction has has 164 places, 397 transitions, 4006 flow [2023-12-09 14:57:00,543 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 73.85714285714286) internal successors, (517), 7 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:00,543 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:00,543 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:57:00,543 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-09 14:57:00,543 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 14:57:00,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:00,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1845801331, now seen corresponding path program 1 times [2023-12-09 14:57:00,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:00,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311549617] [2023-12-09 14:57:00,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:00,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:00,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:00,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:57:00,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:00,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311549617] [2023-12-09 14:57:00,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311549617] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:00,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:00,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 14:57:00,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066942751] [2023-12-09 14:57:00,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:00,809 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 14:57:00,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:00,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 14:57:00,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-09 14:57:00,810 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 91 [2023-12-09 14:57:00,811 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 397 transitions, 4006 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 14:57:00,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:00,811 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 91 [2023-12-09 14:57:00,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:01,335 INFO L124 PetriNetUnfolderBase]: 1130/3217 cut-off events. [2023-12-09 14:57:01,335 INFO L125 PetriNetUnfolderBase]: For 4316/6709 co-relation queries the response was YES. [2023-12-09 14:57:01,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10934 conditions, 3217 events. 1130/3217 cut-off events. For 4316/6709 co-relation queries the response was YES. Maximal size of possible extension queue 484. Compared 32665 event pairs, 0 based on Foata normal form. 323/3325 useless extension candidates. Maximal degree in co-relation 10862. Up to 888 conditions per place. [2023-12-09 14:57:01,356 INFO L140 encePairwiseOnDemand]: 81/91 looper letters, 0 selfloop transitions, 0 changer transitions 265/265 dead transitions. [2023-12-09 14:57:01,356 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 265 transitions, 2464 flow [2023-12-09 14:57:01,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-09 14:57:01,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-12-09 14:57:01,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1216 transitions. [2023-12-09 14:57:01,360 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8351648351648352 [2023-12-09 14:57:01,360 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1216 transitions. [2023-12-09 14:57:01,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1216 transitions. [2023-12-09 14:57:01,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:01,361 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1216 transitions. [2023-12-09 14:57:01,364 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 14:57:01,367 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 14:57:01,368 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 14:57:01,369 INFO L308 CegarLoopForPetriNet]: 82 programPoint places, 74 predicate places. [2023-12-09 14:57:01,369 INFO L500 AbstractCegarLoop]: Abstraction has has 156 places, 265 transitions, 2464 flow [2023-12-09 14:57:01,369 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 14:57:01,375 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/safe004_tso.i_BEv2_AllErrorsAtOnce [2023-12-09 14:57:01,425 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-12-09 14:57:01,426 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-12-09 14:57:01,426 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-12-09 14:57:01,426 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-12-09 14:57:01,426 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-09 14:57:01,426 INFO L457 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:57:01,429 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 14:57:01,430 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 14:57:01,434 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 02:57:01 BasicIcfg [2023-12-09 14:57:01,434 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 14:57:01,434 INFO L158 Benchmark]: Toolchain (without parser) took 9452.99ms. Allocated memory was 175.1MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 121.3MB in the beginning and 864.3MB in the end (delta: -743.1MB). Peak memory consumption was 356.7MB. Max. memory is 8.0GB. [2023-12-09 14:57:01,434 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 175.1MB. Free memory is still 125.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 14:57:01,434 INFO L158 Benchmark]: CACSL2BoogieTranslator took 397.37ms. Allocated memory is still 175.1MB. Free memory was 120.9MB in the beginning and 100.3MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-12-09 14:57:01,435 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.60ms. Allocated memory is still 175.1MB. Free memory was 100.3MB in the beginning and 98.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 14:57:01,435 INFO L158 Benchmark]: Boogie Preprocessor took 30.26ms. Allocated memory is still 175.1MB. Free memory was 98.2MB in the beginning and 96.8MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-09 14:57:01,435 INFO L158 Benchmark]: RCFGBuilder took 380.52ms. Allocated memory was 175.1MB in the beginning and 309.3MB in the end (delta: 134.2MB). Free memory was 96.8MB in the beginning and 274.6MB in the end (delta: -177.8MB). Peak memory consumption was 24.8MB. Max. memory is 8.0GB. [2023-12-09 14:57:01,435 INFO L158 Benchmark]: TraceAbstraction took 8592.53ms. Allocated memory was 309.3MB in the beginning and 1.3GB in the end (delta: 966.8MB). Free memory was 273.5MB in the beginning and 864.3MB in the end (delta: -590.8MB). Peak memory consumption was 373.9MB. Max. memory is 8.0GB. [2023-12-09 14:57:01,436 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 175.1MB. Free memory is still 125.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 397.37ms. Allocated memory is still 175.1MB. Free memory was 120.9MB in the beginning and 100.3MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.60ms. Allocated memory is still 175.1MB. Free memory was 100.3MB in the beginning and 98.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.26ms. Allocated memory is still 175.1MB. Free memory was 98.2MB in the beginning and 96.8MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 380.52ms. Allocated memory was 175.1MB in the beginning and 309.3MB in the end (delta: 134.2MB). Free memory was 96.8MB in the beginning and 274.6MB in the end (delta: -177.8MB). Peak memory consumption was 24.8MB. Max. memory is 8.0GB. * TraceAbstraction took 8592.53ms. Allocated memory was 309.3MB in the beginning and 1.3GB in the end (delta: 966.8MB). Free memory was 273.5MB in the beginning and 864.3MB in the end (delta: -590.8MB). Peak memory consumption was 373.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 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: 8.5s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 6.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 566 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 566 mSDsluCounter, 702 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 519 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 727 IncrementalHoareTripleChecker+Invalid, 768 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 183 mSDtfsCounter, 727 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 140 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16640occurred in iteration=6, InterpolantAutomatonStates: 121, 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, 1.6s InterpolantComputationTime, 505 NumberOfCodeBlocks, 505 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 496 ConstructedInterpolants, 0 QuantifiedInterpolants, 1838 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-12-09 14:57:01,472 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...