/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx16000000000 -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/safe030_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-29 19:33:24,432 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 19:33:24,466 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 [2023-11-29 19:33:24,481 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 19:33:24,482 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 19:33:24,482 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 19:33:24,482 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 19:33:24,483 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 19:33:24,483 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 19:33:24,483 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 19:33:24,483 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 19:33:24,483 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 19:33:24,484 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 19:33:24,484 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 19:33:24,484 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 19:33:24,484 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 19:33:24,485 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 19:33:24,485 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 19:33:24,485 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 19:33:24,485 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 19:33:24,486 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 19:33:24,486 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 19:33:24,486 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 19:33:24,486 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-29 19:33:24,486 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 19:33:24,487 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-29 19:33:24,487 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 19:33:24,487 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 19:33:24,487 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 19:33:24,487 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 19:33:24,488 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 19:33:24,488 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 19:33:24,488 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 19:33:24,488 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-11-29 19:33:24,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 19:33:24,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 19:33:24,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 19:33:24,646 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 19:33:24,650 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 19:33:24,651 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.i [2023-11-29 19:33:25,726 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 19:33:25,922 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 19:33:25,922 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.i [2023-11-29 19:33:25,932 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7ed78c05/d43b2c76975445938fd6cd17c88773f0/FLAGcb906f6dc [2023-11-29 19:33:25,944 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7ed78c05/d43b2c76975445938fd6cd17c88773f0 [2023-11-29 19:33:25,946 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 19:33:25,946 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-29 19:33:25,947 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 19:33:25,947 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 19:33:25,950 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 19:33:25,951 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:33:25" (1/1) ... [2023-11-29 19:33:25,951 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@db6f9f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:25, skipping insertion in model container [2023-11-29 19:33:25,951 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:33:25" (1/1) ... [2023-11-29 19:33:25,985 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 19:33:26,114 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/safe030_tso.i[945,958] [2023-11-29 19:33:26,242 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 19:33:26,250 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 19:33:26,261 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/safe030_tso.i[945,958] [2023-11-29 19:33:26,280 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 19:33:26,299 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 19:33:26,300 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 19:33:26,304 INFO L206 MainTranslator]: Completed translation [2023-11-29 19:33:26,305 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:26 WrapperNode [2023-11-29 19:33:26,305 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 19:33:26,306 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 19:33:26,306 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 19:33:26,306 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 19:33:26,310 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:26" (1/1) ... [2023-11-29 19:33:26,325 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:26" (1/1) ... [2023-11-29 19:33:26,343 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 68 [2023-11-29 19:33:26,343 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 19:33:26,343 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 19:33:26,343 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 19:33:26,343 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 19:33:26,349 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:26" (1/1) ... [2023-11-29 19:33:26,349 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:26" (1/1) ... [2023-11-29 19:33:26,351 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:26" (1/1) ... [2023-11-29 19:33:26,351 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:26" (1/1) ... [2023-11-29 19:33:26,360 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:26" (1/1) ... [2023-11-29 19:33:26,361 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:26" (1/1) ... [2023-11-29 19:33:26,362 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:26" (1/1) ... [2023-11-29 19:33:26,363 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:26" (1/1) ... [2023-11-29 19:33:26,364 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 19:33:26,365 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 19:33:26,365 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 19:33:26,365 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 19:33:26,365 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:26" (1/1) ... [2023-11-29 19:33:26,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-29 19:33:26,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 19:33:26,385 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) [2023-11-29 19:33:26,411 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 [2023-11-29 19:33:26,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 19:33:26,415 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-29 19:33:26,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 19:33:26,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 19:33:26,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 19:33:26,416 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-29 19:33:26,416 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-29 19:33:26,416 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-29 19:33:26,416 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-29 19:33:26,416 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-29 19:33:26,416 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-29 19:33:26,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 19:33:26,416 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-29 19:33:26,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 19:33:26,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 19:33:26,417 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 19:33:26,525 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 19:33:26,527 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 19:33:26,659 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 19:33:26,665 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 19:33:26,666 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 19:33:26,667 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:33:26 BoogieIcfgContainer [2023-11-29 19:33:26,667 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 19:33:26,668 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 19:33:26,668 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 19:33:26,670 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 19:33:26,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:33:25" (1/3) ... [2023-11-29 19:33:26,691 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71f3415e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:33:26, skipping insertion in model container [2023-11-29 19:33:26,691 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:26" (2/3) ... [2023-11-29 19:33:26,691 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71f3415e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:33:26, skipping insertion in model container [2023-11-29 19:33:26,691 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:33:26" (3/3) ... [2023-11-29 19:33:26,692 INFO L112 eAbstractionObserver]: Analyzing ICFG safe030_tso.i [2023-11-29 19:33:26,704 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 19:33:26,705 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 19:33:26,705 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 19:33:26,736 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-29 19:33:26,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 90 transitions, 192 flow [2023-11-29 19:33:26,784 INFO L124 PetriNetUnfolderBase]: 2/87 cut-off events. [2023-11-29 19:33:26,784 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 19:33:26,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 87 events. 2/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 55 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2023-11-29 19:33:26,787 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 90 transitions, 192 flow [2023-11-29 19:33:26,789 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 72 transitions, 153 flow [2023-11-29 19:33:26,795 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 19:33:26,799 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;@1f3a054b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 19:33:26,799 INFO L363 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-29 19:33:26,829 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 19:33:26,829 INFO L124 PetriNetUnfolderBase]: 1/71 cut-off events. [2023-11-29 19:33:26,829 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 19:33:26,829 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:33:26,830 INFO L232 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] [2023-11-29 19:33:26,830 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)] === [2023-11-29 19:33:26,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:33:26,836 INFO L85 PathProgramCache]: Analyzing trace with hash -772268668, now seen corresponding path program 1 times [2023-11-29 19:33:26,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:33:26,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764064368] [2023-11-29 19:33:26,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:33:26,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:33:26,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:33:27,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 19:33:27,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:33:27,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764064368] [2023-11-29 19:33:27,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764064368] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:33:27,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:33:27,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 19:33:27,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082103388] [2023-11-29 19:33:27,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:33:27,287 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 19:33:27,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:33:27,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 19:33:27,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 19:33:27,307 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 90 [2023-11-29 19:33:27,319 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 72 transitions, 153 flow. Second operand has 7 states, 7 states have (on average 67.71428571428571) internal successors, (474), 7 states have internal predecessors, (474), 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) [2023-11-29 19:33:27,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:33:27,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 90 [2023-11-29 19:33:27,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:33:27,703 INFO L124 PetriNetUnfolderBase]: 579/1439 cut-off events. [2023-11-29 19:33:27,704 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2023-11-29 19:33:27,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2411 conditions, 1439 events. 579/1439 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 9507 event pairs, 50 based on Foata normal form. 49/1448 useless extension candidates. Maximal degree in co-relation 2380. Up to 289 conditions per place. [2023-11-29 19:33:27,717 INFO L140 encePairwiseOnDemand]: 78/90 looper letters, 27 selfloop transitions, 9 changer transitions 62/151 dead transitions. [2023-11-29 19:33:27,717 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 151 transitions, 516 flow [2023-11-29 19:33:27,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 19:33:27,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 19:33:27,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 962 transitions. [2023-11-29 19:33:27,732 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8222222222222222 [2023-11-29 19:33:27,732 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 962 transitions. [2023-11-29 19:33:27,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 962 transitions. [2023-11-29 19:33:27,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:33:27,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 962 transitions. [2023-11-29 19:33:27,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 74.0) internal successors, (962), 13 states have internal predecessors, (962), 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) [2023-11-29 19:33:27,748 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 90.0) internal successors, (1260), 14 states have internal predecessors, (1260), 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) [2023-11-29 19:33:27,748 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 90.0) internal successors, (1260), 14 states have internal predecessors, (1260), 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) [2023-11-29 19:33:27,751 INFO L307 CegarLoopForPetriNet]: 81 programPoint places, 12 predicate places. [2023-11-29 19:33:27,751 INFO L500 AbstractCegarLoop]: Abstraction has has 93 places, 151 transitions, 516 flow [2023-11-29 19:33:27,752 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 67.71428571428571) internal successors, (474), 7 states have internal predecessors, (474), 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) [2023-11-29 19:33:27,752 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:33:27,752 INFO L232 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] [2023-11-29 19:33:27,753 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 19:33:27,753 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)] === [2023-11-29 19:33:27,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:33:27,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1145387901, now seen corresponding path program 1 times [2023-11-29 19:33:27,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:33:27,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327811215] [2023-11-29 19:33:27,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:33:27,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:33:27,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:33:27,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 19:33:27,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:33:27,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327811215] [2023-11-29 19:33:27,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327811215] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:33:27,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:33:27,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 19:33:27,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102355493] [2023-11-29 19:33:27,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:33:27,987 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 19:33:27,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:33:27,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 19:33:27,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 19:33:27,989 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 90 [2023-11-29 19:33:27,989 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 151 transitions, 516 flow. Second operand has 6 states, 6 states have (on average 73.66666666666667) internal successors, (442), 6 states have internal predecessors, (442), 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) [2023-11-29 19:33:27,989 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:33:27,989 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 90 [2023-11-29 19:33:27,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:33:28,260 INFO L124 PetriNetUnfolderBase]: 852/2108 cut-off events. [2023-11-29 19:33:28,260 INFO L125 PetriNetUnfolderBase]: For 275/642 co-relation queries the response was YES. [2023-11-29 19:33:28,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4277 conditions, 2108 events. 852/2108 cut-off events. For 275/642 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 16261 event pairs, 24 based on Foata normal form. 26/2096 useless extension candidates. Maximal degree in co-relation 4242. Up to 413 conditions per place. [2023-11-29 19:33:28,267 INFO L140 encePairwiseOnDemand]: 83/90 looper letters, 26 selfloop transitions, 7 changer transitions 152/251 dead transitions. [2023-11-29 19:33:28,268 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 251 transitions, 1232 flow [2023-11-29 19:33:28,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 19:33:28,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-29 19:33:28,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 685 transitions. [2023-11-29 19:33:28,270 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.845679012345679 [2023-11-29 19:33:28,270 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 685 transitions. [2023-11-29 19:33:28,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 685 transitions. [2023-11-29 19:33:28,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:33:28,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 685 transitions. [2023-11-29 19:33:28,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 76.11111111111111) internal successors, (685), 9 states have internal predecessors, (685), 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) [2023-11-29 19:33:28,273 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 90.0) internal successors, (900), 10 states have internal predecessors, (900), 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) [2023-11-29 19:33:28,273 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 90.0) internal successors, (900), 10 states have internal predecessors, (900), 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) [2023-11-29 19:33:28,274 INFO L307 CegarLoopForPetriNet]: 81 programPoint places, 20 predicate places. [2023-11-29 19:33:28,274 INFO L500 AbstractCegarLoop]: Abstraction has has 101 places, 251 transitions, 1232 flow [2023-11-29 19:33:28,274 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.66666666666667) internal successors, (442), 6 states have internal predecessors, (442), 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) [2023-11-29 19:33:28,275 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:33:28,275 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 19:33:28,275 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 19:33:28,275 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)] === [2023-11-29 19:33:28,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:33:28,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1663835826, now seen corresponding path program 1 times [2023-11-29 19:33:28,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:33:28,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553684712] [2023-11-29 19:33:28,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:33:28,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:33:28,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:33:28,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 19:33:28,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:33:28,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553684712] [2023-11-29 19:33:28,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553684712] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:33:28,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:33:28,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 19:33:28,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666828719] [2023-11-29 19:33:28,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:33:28,378 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 19:33:28,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:33:28,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 19:33:28,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 19:33:28,379 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 90 [2023-11-29 19:33:28,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 251 transitions, 1232 flow. Second operand has 6 states, 6 states have (on average 73.66666666666667) internal successors, (442), 6 states have internal predecessors, (442), 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) [2023-11-29 19:33:28,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:33:28,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 90 [2023-11-29 19:33:28,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:33:28,628 INFO L124 PetriNetUnfolderBase]: 1275/2948 cut-off events. [2023-11-29 19:33:28,628 INFO L125 PetriNetUnfolderBase]: For 862/1266 co-relation queries the response was YES. [2023-11-29 19:33:28,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7418 conditions, 2948 events. 1275/2948 cut-off events. For 862/1266 co-relation queries the response was YES. Maximal size of possible extension queue 288. Compared 23554 event pairs, 9 based on Foata normal form. 26/2951 useless extension candidates. Maximal degree in co-relation 7379. Up to 616 conditions per place. [2023-11-29 19:33:28,640 INFO L140 encePairwiseOnDemand]: 83/90 looper letters, 26 selfloop transitions, 6 changer transitions 289/394 dead transitions. [2023-11-29 19:33:28,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 394 transitions, 2448 flow [2023-11-29 19:33:28,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 19:33:28,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-29 19:33:28,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 684 transitions. [2023-11-29 19:33:28,642 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8444444444444444 [2023-11-29 19:33:28,642 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 684 transitions. [2023-11-29 19:33:28,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 684 transitions. [2023-11-29 19:33:28,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:33:28,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 684 transitions. [2023-11-29 19:33:28,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 76.0) internal successors, (684), 9 states have internal predecessors, (684), 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) [2023-11-29 19:33:28,645 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 90.0) internal successors, (900), 10 states have internal predecessors, (900), 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) [2023-11-29 19:33:28,646 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 90.0) internal successors, (900), 10 states have internal predecessors, (900), 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) [2023-11-29 19:33:28,646 INFO L307 CegarLoopForPetriNet]: 81 programPoint places, 28 predicate places. [2023-11-29 19:33:28,646 INFO L500 AbstractCegarLoop]: Abstraction has has 109 places, 394 transitions, 2448 flow [2023-11-29 19:33:28,647 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.66666666666667) internal successors, (442), 6 states have internal predecessors, (442), 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) [2023-11-29 19:33:28,647 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:33:28,647 INFO L232 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] [2023-11-29 19:33:28,647 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 19:33:28,647 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)] === [2023-11-29 19:33:28,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:33:28,647 INFO L85 PathProgramCache]: Analyzing trace with hash -2069931118, now seen corresponding path program 1 times [2023-11-29 19:33:28,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:33:28,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073927274] [2023-11-29 19:33:28,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:33:28,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:33:28,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:33:28,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 19:33:28,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:33:28,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073927274] [2023-11-29 19:33:28,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073927274] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:33:28,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:33:28,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 19:33:28,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209536987] [2023-11-29 19:33:28,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:33:28,771 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 19:33:28,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:33:28,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 19:33:28,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 19:33:28,773 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 90 [2023-11-29 19:33:28,773 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 394 transitions, 2448 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) [2023-11-29 19:33:28,773 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:33:28,773 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 90 [2023-11-29 19:33:28,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:33:29,293 INFO L124 PetriNetUnfolderBase]: 1582/4397 cut-off events. [2023-11-29 19:33:29,293 INFO L125 PetriNetUnfolderBase]: For 1985/3847 co-relation queries the response was YES. [2023-11-29 19:33:29,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13141 conditions, 4397 events. 1582/4397 cut-off events. For 1985/3847 co-relation queries the response was YES. Maximal size of possible extension queue 463. Compared 43420 event pairs, 18 based on Foata normal form. 96/4467 useless extension candidates. Maximal degree in co-relation 13096. Up to 844 conditions per place. [2023-11-29 19:33:29,309 INFO L140 encePairwiseOnDemand]: 79/90 looper letters, 47 selfloop transitions, 20 changer transitions 607/727 dead transitions. [2023-11-29 19:33:29,309 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 727 transitions, 5967 flow [2023-11-29 19:33:29,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 19:33:29,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 19:33:29,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 960 transitions. [2023-11-29 19:33:29,311 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8205128205128205 [2023-11-29 19:33:29,311 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 960 transitions. [2023-11-29 19:33:29,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 960 transitions. [2023-11-29 19:33:29,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:33:29,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 960 transitions. [2023-11-29 19:33:29,313 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 73.84615384615384) internal successors, (960), 13 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 19:33:29,314 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 90.0) internal successors, (1260), 14 states have internal predecessors, (1260), 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) [2023-11-29 19:33:29,315 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 90.0) internal successors, (1260), 14 states have internal predecessors, (1260), 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) [2023-11-29 19:33:29,315 INFO L307 CegarLoopForPetriNet]: 81 programPoint places, 40 predicate places. [2023-11-29 19:33:29,315 INFO L500 AbstractCegarLoop]: Abstraction has has 121 places, 727 transitions, 5967 flow [2023-11-29 19:33:29,316 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) [2023-11-29 19:33:29,316 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:33:29,316 INFO L232 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] [2023-11-29 19:33:29,316 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 19:33:29,316 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)] === [2023-11-29 19:33:29,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:33:29,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1792416413, now seen corresponding path program 1 times [2023-11-29 19:33:29,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:33:29,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897243659] [2023-11-29 19:33:29,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:33:29,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:33:29,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:33:29,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 19:33:29,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:33:29,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897243659] [2023-11-29 19:33:29,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897243659] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:33:29,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:33:29,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 19:33:29,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697450431] [2023-11-29 19:33:29,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:33:29,401 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 19:33:29,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:33:29,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 19:33:29,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 19:33:29,402 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 90 [2023-11-29 19:33:29,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 727 transitions, 5967 flow. Second operand has 6 states, 6 states have (on average 73.83333333333333) internal successors, (443), 6 states have internal predecessors, (443), 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) [2023-11-29 19:33:29,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:33:29,402 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 90 [2023-11-29 19:33:29,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:33:29,945 INFO L124 PetriNetUnfolderBase]: 1724/5406 cut-off events. [2023-11-29 19:33:29,945 INFO L125 PetriNetUnfolderBase]: For 4137/7431 co-relation queries the response was YES. [2023-11-29 19:33:29,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17284 conditions, 5406 events. 1724/5406 cut-off events. For 4137/7431 co-relation queries the response was YES. Maximal size of possible extension queue 584. Compared 59497 event pairs, 16 based on Foata normal form. 52/5434 useless extension candidates. Maximal degree in co-relation 17235. Up to 1034 conditions per place. [2023-11-29 19:33:29,964 INFO L140 encePairwiseOnDemand]: 84/90 looper letters, 43 selfloop transitions, 6 changer transitions 741/867 dead transitions. [2023-11-29 19:33:29,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 867 transitions, 8507 flow [2023-11-29 19:33:29,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 19:33:29,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-29 19:33:29,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 678 transitions. [2023-11-29 19:33:29,965 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.837037037037037 [2023-11-29 19:33:29,965 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 678 transitions. [2023-11-29 19:33:29,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 678 transitions. [2023-11-29 19:33:29,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:33:29,966 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 678 transitions. [2023-11-29 19:33:29,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 75.33333333333333) internal successors, (678), 9 states have internal predecessors, (678), 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) [2023-11-29 19:33:29,968 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 90.0) internal successors, (900), 10 states have internal predecessors, (900), 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) [2023-11-29 19:33:29,968 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 90.0) internal successors, (900), 10 states have internal predecessors, (900), 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) [2023-11-29 19:33:29,970 INFO L307 CegarLoopForPetriNet]: 81 programPoint places, 48 predicate places. [2023-11-29 19:33:29,970 INFO L500 AbstractCegarLoop]: Abstraction has has 129 places, 867 transitions, 8507 flow [2023-11-29 19:33:29,970 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.83333333333333) internal successors, (443), 6 states have internal predecessors, (443), 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) [2023-11-29 19:33:29,970 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:33:29,970 INFO L232 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] [2023-11-29 19:33:29,970 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 19:33:29,970 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)] === [2023-11-29 19:33:29,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:33:29,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1738544566, now seen corresponding path program 1 times [2023-11-29 19:33:29,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:33:29,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077331421] [2023-11-29 19:33:29,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:33:29,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:33:29,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:33:30,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 19:33:30,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:33:30,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077331421] [2023-11-29 19:33:30,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077331421] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:33:30,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:33:30,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 19:33:30,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710285032] [2023-11-29 19:33:30,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:33:30,088 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 19:33:30,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:33:30,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 19:33:30,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 19:33:30,089 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 90 [2023-11-29 19:33:30,090 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 867 transitions, 8507 flow. Second operand has 6 states, 6 states have (on average 73.83333333333333) internal successors, (443), 6 states have internal predecessors, (443), 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) [2023-11-29 19:33:30,090 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:33:30,090 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 90 [2023-11-29 19:33:30,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:33:30,795 INFO L124 PetriNetUnfolderBase]: 1844/6514 cut-off events. [2023-11-29 19:33:30,796 INFO L125 PetriNetUnfolderBase]: For 7632/9366 co-relation queries the response was YES. [2023-11-29 19:33:30,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22306 conditions, 6514 events. 1844/6514 cut-off events. For 7632/9366 co-relation queries the response was YES. Maximal size of possible extension queue 719. Compared 77994 event pairs, 18 based on Foata normal form. 103/6607 useless extension candidates. Maximal degree in co-relation 22253. Up to 1195 conditions per place. [2023-11-29 19:33:30,819 INFO L140 encePairwiseOnDemand]: 84/90 looper letters, 51 selfloop transitions, 8 changer transitions 943/1074 dead transitions. [2023-11-29 19:33:30,820 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 1074 transitions, 12555 flow [2023-11-29 19:33:30,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 19:33:30,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-29 19:33:30,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 677 transitions. [2023-11-29 19:33:30,821 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8358024691358025 [2023-11-29 19:33:30,821 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 677 transitions. [2023-11-29 19:33:30,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 677 transitions. [2023-11-29 19:33:30,822 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:33:30,822 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 677 transitions. [2023-11-29 19:33:30,823 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 75.22222222222223) internal successors, (677), 9 states have internal predecessors, (677), 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) [2023-11-29 19:33:30,824 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 90.0) internal successors, (900), 10 states have internal predecessors, (900), 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) [2023-11-29 19:33:30,824 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 90.0) internal successors, (900), 10 states have internal predecessors, (900), 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) [2023-11-29 19:33:30,825 INFO L307 CegarLoopForPetriNet]: 81 programPoint places, 56 predicate places. [2023-11-29 19:33:30,825 INFO L500 AbstractCegarLoop]: Abstraction has has 137 places, 1074 transitions, 12555 flow [2023-11-29 19:33:30,825 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.83333333333333) internal successors, (443), 6 states have internal predecessors, (443), 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) [2023-11-29 19:33:30,825 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:33:30,825 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 19:33:30,825 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 19:33:30,825 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)] === [2023-11-29 19:33:30,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:33:30,825 INFO L85 PathProgramCache]: Analyzing trace with hash 297766567, now seen corresponding path program 1 times [2023-11-29 19:33:30,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:33:30,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340448150] [2023-11-29 19:33:30,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:33:30,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:33:30,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:33:30,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 19:33:30,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:33:30,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340448150] [2023-11-29 19:33:30,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340448150] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:33:30,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:33:30,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 19:33:30,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809724987] [2023-11-29 19:33:30,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:33:30,904 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 19:33:30,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:33:30,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 19:33:30,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 19:33:30,905 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 90 [2023-11-29 19:33:30,905 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 1074 transitions, 12555 flow. Second operand has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 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) [2023-11-29 19:33:30,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:33:30,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 90 [2023-11-29 19:33:30,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:33:32,053 INFO L124 PetriNetUnfolderBase]: 2248/7195 cut-off events. [2023-11-29 19:33:32,054 INFO L125 PetriNetUnfolderBase]: For 6523/7179 co-relation queries the response was YES. [2023-11-29 19:33:32,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20945 conditions, 7195 events. 2248/7195 cut-off events. For 6523/7179 co-relation queries the response was YES. Maximal size of possible extension queue 556. Compared 83392 event pairs, 107 based on Foata normal form. 83/6979 useless extension candidates. Maximal degree in co-relation 20888. Up to 1772 conditions per place. [2023-11-29 19:33:32,110 INFO L140 encePairwiseOnDemand]: 80/90 looper letters, 44 selfloop transitions, 17 changer transitions 419/692 dead transitions. [2023-11-29 19:33:32,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 692 transitions, 7666 flow [2023-11-29 19:33:32,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 19:33:32,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-29 19:33:32,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 760 transitions. [2023-11-29 19:33:32,112 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8444444444444444 [2023-11-29 19:33:32,112 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 760 transitions. [2023-11-29 19:33:32,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 760 transitions. [2023-11-29 19:33:32,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:33:32,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 760 transitions. [2023-11-29 19:33:32,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 76.0) internal successors, (760), 10 states have internal predecessors, (760), 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) [2023-11-29 19:33:32,115 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 90.0) internal successors, (990), 11 states have internal predecessors, (990), 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) [2023-11-29 19:33:32,115 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 90.0) internal successors, (990), 11 states have internal predecessors, (990), 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) [2023-11-29 19:33:32,116 INFO L307 CegarLoopForPetriNet]: 81 programPoint places, 65 predicate places. [2023-11-29 19:33:32,116 INFO L500 AbstractCegarLoop]: Abstraction has has 146 places, 692 transitions, 7666 flow [2023-11-29 19:33:32,116 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 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) [2023-11-29 19:33:32,116 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:33:32,116 INFO L232 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] [2023-11-29 19:33:32,116 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 19:33:32,117 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)] === [2023-11-29 19:33:32,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:33:32,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1214127872, now seen corresponding path program 1 times [2023-11-29 19:33:32,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:33:32,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105527038] [2023-11-29 19:33:32,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:33:32,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:33:32,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:33:32,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 19:33:32,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:33:32,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105527038] [2023-11-29 19:33:32,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105527038] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:33:32,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:33:32,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 19:33:32,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295550714] [2023-11-29 19:33:32,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:33:32,238 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 19:33:32,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:33:32,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 19:33:32,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 19:33:32,240 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 90 [2023-11-29 19:33:32,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 692 transitions, 7666 flow. Second operand has 7 states, 7 states have (on average 72.85714285714286) internal successors, (510), 7 states have internal predecessors, (510), 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) [2023-11-29 19:33:32,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:33:32,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 90 [2023-11-29 19:33:32,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:33:32,744 INFO L124 PetriNetUnfolderBase]: 1266/3699 cut-off events. [2023-11-29 19:33:32,744 INFO L125 PetriNetUnfolderBase]: For 3086/4884 co-relation queries the response was YES. [2023-11-29 19:33:32,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10993 conditions, 3699 events. 1266/3699 cut-off events. For 3086/4884 co-relation queries the response was YES. Maximal size of possible extension queue 449. Compared 37034 event pairs, 0 based on Foata normal form. 358/3837 useless extension candidates. Maximal degree in co-relation 10932. Up to 1059 conditions per place. [2023-11-29 19:33:32,761 INFO L140 encePairwiseOnDemand]: 80/90 looper letters, 38 selfloop transitions, 44 changer transitions 174/350 dead transitions. [2023-11-29 19:33:32,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 350 transitions, 3466 flow [2023-11-29 19:33:32,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 19:33:32,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 19:33:32,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 988 transitions. [2023-11-29 19:33:32,764 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8444444444444444 [2023-11-29 19:33:32,764 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 988 transitions. [2023-11-29 19:33:32,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 988 transitions. [2023-11-29 19:33:32,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:33:32,764 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 988 transitions. [2023-11-29 19:33:32,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 76.0) internal successors, (988), 13 states have internal predecessors, (988), 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) [2023-11-29 19:33:32,767 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 90.0) internal successors, (1260), 14 states have internal predecessors, (1260), 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) [2023-11-29 19:33:32,768 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 90.0) internal successors, (1260), 14 states have internal predecessors, (1260), 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) [2023-11-29 19:33:32,768 INFO L307 CegarLoopForPetriNet]: 81 programPoint places, 62 predicate places. [2023-11-29 19:33:32,768 INFO L500 AbstractCegarLoop]: Abstraction has has 143 places, 350 transitions, 3466 flow [2023-11-29 19:33:32,768 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 72.85714285714286) internal successors, (510), 7 states have internal predecessors, (510), 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) [2023-11-29 19:33:32,768 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:33:32,769 INFO L232 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] [2023-11-29 19:33:32,769 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 19:33:32,769 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)] === [2023-11-29 19:33:32,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:33:32,769 INFO L85 PathProgramCache]: Analyzing trace with hash 505692416, now seen corresponding path program 1 times [2023-11-29 19:33:32,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:33:32,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684177799] [2023-11-29 19:33:32,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:33:32,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:33:32,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:33:32,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 19:33:32,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:33:32,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684177799] [2023-11-29 19:33:32,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684177799] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:33:32,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:33:32,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 19:33:32,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003573781] [2023-11-29 19:33:32,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:33:32,951 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 19:33:32,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:33:32,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 19:33:32,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 19:33:32,952 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 90 [2023-11-29 19:33:32,952 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 350 transitions, 3466 flow. Second operand has 8 states, 8 states have (on average 72.75) internal successors, (582), 8 states have internal predecessors, (582), 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) [2023-11-29 19:33:32,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:33:32,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 90 [2023-11-29 19:33:32,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:33:33,278 INFO L124 PetriNetUnfolderBase]: 1098/3077 cut-off events. [2023-11-29 19:33:33,278 INFO L125 PetriNetUnfolderBase]: For 2806/4353 co-relation queries the response was YES. [2023-11-29 19:33:33,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10357 conditions, 3077 events. 1098/3077 cut-off events. For 2806/4353 co-relation queries the response was YES. Maximal size of possible extension queue 448. Compared 30873 event pairs, 0 based on Foata normal form. 331/3255 useless extension candidates. Maximal degree in co-relation 10292. Up to 859 conditions per place. [2023-11-29 19:33:33,292 INFO L140 encePairwiseOnDemand]: 80/90 looper letters, 0 selfloop transitions, 0 changer transitions 241/241 dead transitions. [2023-11-29 19:33:33,292 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 241 transitions, 2240 flow [2023-11-29 19:33:33,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 19:33:33,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-29 19:33:33,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1200 transitions. [2023-11-29 19:33:33,294 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2023-11-29 19:33:33,295 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1200 transitions. [2023-11-29 19:33:33,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1200 transitions. [2023-11-29 19:33:33,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:33:33,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1200 transitions. [2023-11-29 19:33:33,297 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 75.0) internal successors, (1200), 16 states have internal predecessors, (1200), 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) [2023-11-29 19:33:33,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 90.0) internal successors, (1530), 17 states have internal predecessors, (1530), 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) [2023-11-29 19:33:33,300 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 90.0) internal successors, (1530), 17 states have internal predecessors, (1530), 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) [2023-11-29 19:33:33,300 INFO L307 CegarLoopForPetriNet]: 81 programPoint places, 63 predicate places. [2023-11-29 19:33:33,301 INFO L500 AbstractCegarLoop]: Abstraction has has 144 places, 241 transitions, 2240 flow [2023-11-29 19:33:33,301 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 72.75) internal successors, (582), 8 states have internal predecessors, (582), 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) [2023-11-29 19:33:33,305 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/safe030_tso.i_BEv2_AllErrorsAtOnce [2023-11-29 19:33:33,349 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-11-29 19:33:33,350 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-11-29 19:33:33,350 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-11-29 19:33:33,350 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-11-29 19:33:33,350 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 19:33:33,351 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 19:33:33,353 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 19:33:33,353 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 19:33:33,358 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:33:33 BasicIcfg [2023-11-29 19:33:33,359 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 19:33:33,359 INFO L158 Benchmark]: Toolchain (without parser) took 7412.49ms. Allocated memory was 509.6MB in the beginning and 1.3GB in the end (delta: 832.6MB). Free memory was 456.8MB in the beginning and 924.9MB in the end (delta: -468.2MB). Peak memory consumption was 364.1MB. Max. memory is 16.0GB. [2023-11-29 19:33:33,360 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 350.2MB. Free memory is still 298.8MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-29 19:33:33,360 INFO L158 Benchmark]: CACSL2BoogieTranslator took 357.87ms. Allocated memory is still 509.6MB. Free memory was 456.5MB in the beginning and 436.1MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-11-29 19:33:33,360 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.42ms. Allocated memory is still 509.6MB. Free memory was 436.1MB in the beginning and 434.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-29 19:33:33,361 INFO L158 Benchmark]: Boogie Preprocessor took 21.01ms. Allocated memory is still 509.6MB. Free memory was 434.0MB in the beginning and 432.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.0GB. [2023-11-29 19:33:33,361 INFO L158 Benchmark]: RCFGBuilder took 302.08ms. Allocated memory is still 509.6MB. Free memory was 432.6MB in the beginning and 418.7MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-11-29 19:33:33,361 INFO L158 Benchmark]: TraceAbstraction took 6690.31ms. Allocated memory was 509.6MB in the beginning and 1.3GB in the end (delta: 832.6MB). Free memory was 418.1MB in the beginning and 924.9MB in the end (delta: -506.8MB). Peak memory consumption was 326.3MB. Max. memory is 16.0GB. [2023-11-29 19:33:33,362 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 350.2MB. Free memory is still 298.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 357.87ms. Allocated memory is still 509.6MB. Free memory was 456.5MB in the beginning and 436.1MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 37.42ms. Allocated memory is still 509.6MB. Free memory was 436.1MB in the beginning and 434.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 21.01ms. Allocated memory is still 509.6MB. Free memory was 434.0MB in the beginning and 432.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 302.08ms. Allocated memory is still 509.6MB. Free memory was 432.6MB in the beginning and 418.7MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 6690.31ms. Allocated memory was 509.6MB in the beginning and 1.3GB in the end (delta: 832.6MB). Free memory was 418.1MB in the beginning and 924.9MB in the end (delta: -506.8MB). Peak memory consumption was 326.3MB. Max. memory is 16.0GB. * 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, 116 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: 6.6s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 403 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 403 mSDsluCounter, 597 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 436 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 553 IncrementalHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 161 mSDtfsCounter, 553 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 121 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12555occurred in iteration=6, InterpolantAutomatonStates: 101, 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, 1.1s InterpolantComputationTime, 489 NumberOfCodeBlocks, 489 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 480 ConstructedInterpolants, 0 QuantifiedInterpolants, 1668 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! [2023-11-29 19:33:33,389 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...