/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/safe008_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-29 19:32:30,540 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 19:32:30,607 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 19:32:30,629 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 19:32:30,629 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 19:32:30,630 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 19:32:30,630 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 19:32:30,630 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 19:32:30,631 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 19:32:30,633 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 19:32:30,633 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 19:32:30,634 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 19:32:30,634 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 19:32:30,634 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 19:32:30,634 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 19:32:30,634 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 19:32:30,634 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 19:32:30,635 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 19:32:30,635 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 19:32:30,635 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 19:32:30,635 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 19:32:30,644 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 19:32:30,644 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 19:32:30,645 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-29 19:32:30,645 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 19:32:30,646 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-29 19:32:30,646 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 19:32:30,646 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 19:32:30,646 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 19:32:30,646 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 19:32:30,647 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 19:32:30,647 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 19:32:30,647 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 19:32:30,647 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-11-29 19:32:30,830 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 19:32:30,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 19:32:30,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 19:32:30,849 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 19:32:30,849 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 19:32:30,850 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe008_tso.i [2023-11-29 19:32:31,840 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 19:32:32,023 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 19:32:32,023 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe008_tso.i [2023-11-29 19:32:32,041 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdf9d868f/083bd4034d5641398828bea4519c9310/FLAG2b869bd39 [2023-11-29 19:32:32,051 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdf9d868f/083bd4034d5641398828bea4519c9310 [2023-11-29 19:32:32,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 19:32:32,054 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-29 19:32:32,055 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 19:32:32,055 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 19:32:32,058 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 19:32:32,059 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:32:32" (1/1) ... [2023-11-29 19:32:32,059 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c22e45f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:32, skipping insertion in model container [2023-11-29 19:32:32,059 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:32:32" (1/1) ... [2023-11-29 19:32:32,104 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 19:32:32,234 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/safe008_tso.i[945,958] [2023-11-29 19:32:32,377 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 19:32:32,388 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 19:32:32,399 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/safe008_tso.i[945,958] [2023-11-29 19:32:32,428 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 19:32:32,454 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 19:32:32,454 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 19:32:32,459 INFO L206 MainTranslator]: Completed translation [2023-11-29 19:32:32,460 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:32 WrapperNode [2023-11-29 19:32:32,460 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 19:32:32,462 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 19:32:32,462 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 19:32:32,462 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 19:32:32,466 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:32" (1/1) ... [2023-11-29 19:32:32,490 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:32" (1/1) ... [2023-11-29 19:32:32,508 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2023-11-29 19:32:32,508 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 19:32:32,509 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 19:32:32,509 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 19:32:32,510 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 19:32:32,515 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:32" (1/1) ... [2023-11-29 19:32:32,515 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:32" (1/1) ... [2023-11-29 19:32:32,524 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:32" (1/1) ... [2023-11-29 19:32:32,525 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:32" (1/1) ... [2023-11-29 19:32:32,533 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:32" (1/1) ... [2023-11-29 19:32:32,534 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:32" (1/1) ... [2023-11-29 19:32:32,535 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:32" (1/1) ... [2023-11-29 19:32:32,535 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:32" (1/1) ... [2023-11-29 19:32:32,537 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 19:32:32,538 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 19:32:32,538 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 19:32:32,538 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 19:32:32,538 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:32" (1/1) ... [2023-11-29 19:32:32,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-29 19:32:32,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 19:32:32,566 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 19:32:32,568 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 19:32:32,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 19:32:32,586 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-29 19:32:32,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 19:32:32,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 19:32:32,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 19:32:32,586 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-29 19:32:32,586 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-29 19:32:32,586 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-29 19:32:32,586 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-29 19:32:32,586 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-29 19:32:32,586 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-29 19:32:32,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 19:32:32,587 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-29 19:32:32,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 19:32:32,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 19:32:32,588 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 19:32:32,674 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 19:32:32,675 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 19:32:32,789 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 19:32:32,795 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 19:32:32,796 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 19:32:32,797 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:32:32 BoogieIcfgContainer [2023-11-29 19:32:32,797 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 19:32:32,798 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 19:32:32,799 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 19:32:32,801 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 19:32:32,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:32:32" (1/3) ... [2023-11-29 19:32:32,801 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5301c281 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:32:32, skipping insertion in model container [2023-11-29 19:32:32,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:32:32" (2/3) ... [2023-11-29 19:32:32,802 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5301c281 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:32:32, skipping insertion in model container [2023-11-29 19:32:32,802 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:32:32" (3/3) ... [2023-11-29 19:32:32,803 INFO L112 eAbstractionObserver]: Analyzing ICFG safe008_tso.i [2023-11-29 19:32:32,815 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 19:32:32,815 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 19:32:32,815 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 19:32:32,855 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-29 19:32:32,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 92 transitions, 196 flow [2023-11-29 19:32:32,918 INFO L124 PetriNetUnfolderBase]: 2/89 cut-off events. [2023-11-29 19:32:32,919 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 19:32:32,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 89 events. 2/89 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. 0/86 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2023-11-29 19:32:32,922 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 92 transitions, 196 flow [2023-11-29 19:32:32,924 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 74 transitions, 157 flow [2023-11-29 19:32:32,931 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 19:32:32,937 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;@77c1b967, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 19:32:32,937 INFO L363 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-29 19:32:32,951 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 19:32:32,951 INFO L124 PetriNetUnfolderBase]: 1/73 cut-off events. [2023-11-29 19:32:32,951 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 19:32:32,952 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:32:32,952 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 19:32:32,952 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 19:32:32,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:32:32,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1647739713, now seen corresponding path program 1 times [2023-11-29 19:32:32,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:32:32,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977625250] [2023-11-29 19:32:32,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:32:32,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:32:33,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:32:33,527 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 19:32:33,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:32:33,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977625250] [2023-11-29 19:32:33,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977625250] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:32:33,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:32:33,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 19:32:33,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687965094] [2023-11-29 19:32:33,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:32:33,535 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 19:32:33,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:32:33,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 19:32:33,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 19:32:33,557 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 92 [2023-11-29 19:32:33,559 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 74 transitions, 157 flow. Second operand has 7 states, 7 states have (on average 71.71428571428571) internal successors, (502), 7 states have internal predecessors, (502), 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 19:32:33,559 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:32:33,559 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 92 [2023-11-29 19:32:33,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:32:33,759 INFO L124 PetriNetUnfolderBase]: 129/447 cut-off events. [2023-11-29 19:32:33,759 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-29 19:32:33,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 715 conditions, 447 events. 129/447 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2216 event pairs, 14 based on Foata normal form. 20/453 useless extension candidates. Maximal degree in co-relation 682. Up to 78 conditions per place. [2023-11-29 19:32:33,763 INFO L140 encePairwiseOnDemand]: 83/92 looper letters, 21 selfloop transitions, 4 changer transitions 35/117 dead transitions. [2023-11-29 19:32:33,763 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 117 transitions, 366 flow [2023-11-29 19:32:33,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 19:32:33,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 19:32:33,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 976 transitions. [2023-11-29 19:32:33,779 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8160535117056856 [2023-11-29 19:32:33,780 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 976 transitions. [2023-11-29 19:32:33,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 976 transitions. [2023-11-29 19:32:33,783 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:32:33,785 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 976 transitions. [2023-11-29 19:32:33,789 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 75.07692307692308) internal successors, (976), 13 states have internal predecessors, (976), 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 19:32:33,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 92.0) internal successors, (1288), 14 states have internal predecessors, (1288), 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 19:32:33,796 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 92.0) internal successors, (1288), 14 states have internal predecessors, (1288), 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 19:32:33,800 INFO L307 CegarLoopForPetriNet]: 83 programPoint places, 12 predicate places. [2023-11-29 19:32:33,801 INFO L500 AbstractCegarLoop]: Abstraction has has 95 places, 117 transitions, 366 flow [2023-11-29 19:32:33,801 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 71.71428571428571) internal successors, (502), 7 states have internal predecessors, (502), 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 19:32:33,801 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:32:33,801 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 19:32:33,802 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 19:32:33,802 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 19:32:33,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:32:33,803 INFO L85 PathProgramCache]: Analyzing trace with hash -2115457856, now seen corresponding path program 1 times [2023-11-29 19:32:33,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:32:33,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085898885] [2023-11-29 19:32:33,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:32:33,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:32:33,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:32:33,981 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 19:32:33,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:32:33,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085898885] [2023-11-29 19:32:33,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085898885] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:32:33,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:32:33,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 19:32:33,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740390371] [2023-11-29 19:32:33,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:32:33,983 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 19:32:33,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:32:33,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 19:32:33,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 19:32:33,986 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 92 [2023-11-29 19:32:33,986 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 117 transitions, 366 flow. Second operand has 7 states, 7 states have (on average 70.0) internal successors, (490), 7 states have internal predecessors, (490), 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 19:32:33,986 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:32:33,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 92 [2023-11-29 19:32:33,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:32:34,478 INFO L124 PetriNetUnfolderBase]: 460/1572 cut-off events. [2023-11-29 19:32:34,478 INFO L125 PetriNetUnfolderBase]: For 187/504 co-relation queries the response was YES. [2023-11-29 19:32:34,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3166 conditions, 1572 events. 460/1572 cut-off events. For 187/504 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 13070 event pairs, 0 based on Foata normal form. 24/1578 useless extension candidates. Maximal degree in co-relation 3126. Up to 183 conditions per place. [2023-11-29 19:32:34,486 INFO L140 encePairwiseOnDemand]: 81/92 looper letters, 41 selfloop transitions, 16 changer transitions 249/361 dead transitions. [2023-11-29 19:32:34,487 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 361 transitions, 1961 flow [2023-11-29 19:32:34,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 19:32:34,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-29 19:32:34,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1269 transitions. [2023-11-29 19:32:34,489 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8113810741687979 [2023-11-29 19:32:34,489 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1269 transitions. [2023-11-29 19:32:34,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1269 transitions. [2023-11-29 19:32:34,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:32:34,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1269 transitions. [2023-11-29 19:32:34,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 74.6470588235294) internal successors, (1269), 17 states have internal predecessors, (1269), 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 19:32:34,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 92.0) internal successors, (1656), 18 states have internal predecessors, (1656), 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 19:32:34,496 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 92.0) internal successors, (1656), 18 states have internal predecessors, (1656), 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 19:32:34,497 INFO L307 CegarLoopForPetriNet]: 83 programPoint places, 28 predicate places. [2023-11-29 19:32:34,497 INFO L500 AbstractCegarLoop]: Abstraction has has 111 places, 361 transitions, 1961 flow [2023-11-29 19:32:34,497 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 70.0) internal successors, (490), 7 states have internal predecessors, (490), 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 19:32:34,497 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:32:34,498 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 19:32:34,498 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 19:32:34,498 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 19:32:34,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:32:34,499 INFO L85 PathProgramCache]: Analyzing trace with hash -2133788543, now seen corresponding path program 1 times [2023-11-29 19:32:34,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:32:34,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821404851] [2023-11-29 19:32:34,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:32:34,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:32:34,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:32:34,679 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 19:32:34,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:32:34,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821404851] [2023-11-29 19:32:34,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821404851] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:32:34,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:32:34,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 19:32:34,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850308230] [2023-11-29 19:32:34,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:32:34,681 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 19:32:34,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:32:34,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 19:32:34,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 19:32:34,682 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 92 [2023-11-29 19:32:34,682 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 361 transitions, 1961 flow. Second operand has 7 states, 7 states have (on average 74.71428571428571) internal successors, (523), 7 states have internal predecessors, (523), 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 19:32:34,682 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:32:34,682 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 92 [2023-11-29 19:32:34,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:32:34,920 INFO L124 PetriNetUnfolderBase]: 461/1710 cut-off events. [2023-11-29 19:32:34,921 INFO L125 PetriNetUnfolderBase]: For 498/995 co-relation queries the response was YES. [2023-11-29 19:32:34,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3993 conditions, 1710 events. 461/1710 cut-off events. For 498/995 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 14919 event pairs, 0 based on Foata normal form. 62/1756 useless extension candidates. Maximal degree in co-relation 3948. Up to 194 conditions per place. [2023-11-29 19:32:34,929 INFO L140 encePairwiseOnDemand]: 84/92 looper letters, 18 selfloop transitions, 6 changer transitions 299/389 dead transitions. [2023-11-29 19:32:34,929 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 389 transitions, 2484 flow [2023-11-29 19:32:34,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 19:32:34,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 19:32:34,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 988 transitions. [2023-11-29 19:32:34,931 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8260869565217391 [2023-11-29 19:32:34,931 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 988 transitions. [2023-11-29 19:32:34,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 988 transitions. [2023-11-29 19:32:34,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:32:34,931 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 988 transitions. [2023-11-29 19:32:34,933 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 19:32:34,934 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 92.0) internal successors, (1288), 14 states have internal predecessors, (1288), 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 19:32:34,935 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 92.0) internal successors, (1288), 14 states have internal predecessors, (1288), 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 19:32:34,935 INFO L307 CegarLoopForPetriNet]: 83 programPoint places, 40 predicate places. [2023-11-29 19:32:34,935 INFO L500 AbstractCegarLoop]: Abstraction has has 123 places, 389 transitions, 2484 flow [2023-11-29 19:32:34,936 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 74.71428571428571) internal successors, (523), 7 states have internal predecessors, (523), 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 19:32:34,936 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:32:34,936 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] [2023-11-29 19:32:34,936 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 19:32:34,936 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 19:32:34,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:32:34,936 INFO L85 PathProgramCache]: Analyzing trace with hash 997257911, now seen corresponding path program 1 times [2023-11-29 19:32:34,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:32:34,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342217640] [2023-11-29 19:32:34,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:32:34,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:32:34,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:32:35,056 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 19:32:35,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:32:35,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342217640] [2023-11-29 19:32:35,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342217640] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:32:35,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:32:35,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 19:32:35,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733764244] [2023-11-29 19:32:35,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:32:35,057 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 19:32:35,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:32:35,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 19:32:35,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 19:32:35,059 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 92 [2023-11-29 19:32:35,059 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 389 transitions, 2484 flow. Second operand has 6 states, 6 states have (on average 76.66666666666667) internal successors, (460), 6 states have internal predecessors, (460), 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 19:32:35,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:32:35,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 92 [2023-11-29 19:32:35,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:32:35,290 INFO L124 PetriNetUnfolderBase]: 582/2181 cut-off events. [2023-11-29 19:32:35,291 INFO L125 PetriNetUnfolderBase]: For 1366/1646 co-relation queries the response was YES. [2023-11-29 19:32:35,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5768 conditions, 2181 events. 582/2181 cut-off events. For 1366/1646 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 20653 event pairs, 0 based on Foata normal form. 36/2205 useless extension candidates. Maximal degree in co-relation 5719. Up to 227 conditions per place. [2023-11-29 19:32:35,299 INFO L140 encePairwiseOnDemand]: 86/92 looper letters, 18 selfloop transitions, 5 changer transitions 472/562 dead transitions. [2023-11-29 19:32:35,299 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 562 transitions, 4590 flow [2023-11-29 19:32:35,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 19:32:35,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-29 19:32:35,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 698 transitions. [2023-11-29 19:32:35,301 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8429951690821256 [2023-11-29 19:32:35,301 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 698 transitions. [2023-11-29 19:32:35,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 698 transitions. [2023-11-29 19:32:35,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:32:35,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 698 transitions. [2023-11-29 19:32:35,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 77.55555555555556) internal successors, (698), 9 states have internal predecessors, (698), 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 19:32:35,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 92.0) internal successors, (920), 10 states have internal predecessors, (920), 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 19:32:35,306 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 92.0) internal successors, (920), 10 states have internal predecessors, (920), 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 19:32:35,307 INFO L307 CegarLoopForPetriNet]: 83 programPoint places, 48 predicate places. [2023-11-29 19:32:35,307 INFO L500 AbstractCegarLoop]: Abstraction has has 131 places, 562 transitions, 4590 flow [2023-11-29 19:32:35,308 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.66666666666667) internal successors, (460), 6 states have internal predecessors, (460), 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 19:32:35,308 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:32:35,308 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 19:32:35,308 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 19:32:35,308 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 19:32:35,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:32:35,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1701508390, now seen corresponding path program 1 times [2023-11-29 19:32:35,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:32:35,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543256905] [2023-11-29 19:32:35,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:32:35,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:32:35,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:32:35,444 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 19:32:35,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:32:35,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543256905] [2023-11-29 19:32:35,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543256905] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:32:35,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:32:35,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 19:32:35,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531249782] [2023-11-29 19:32:35,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:32:35,446 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 19:32:35,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:32:35,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 19:32:35,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 19:32:35,448 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 92 [2023-11-29 19:32:35,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 562 transitions, 4590 flow. Second operand has 7 states, 7 states have (on average 74.71428571428571) internal successors, (523), 7 states have internal predecessors, (523), 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 19:32:35,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:32:35,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 92 [2023-11-29 19:32:35,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:32:35,894 INFO L124 PetriNetUnfolderBase]: 1340/3952 cut-off events. [2023-11-29 19:32:35,894 INFO L125 PetriNetUnfolderBase]: For 5844/12682 co-relation queries the response was YES. [2023-11-29 19:32:35,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12306 conditions, 3952 events. 1340/3952 cut-off events. For 5844/12682 co-relation queries the response was YES. Maximal size of possible extension queue 440. Compared 39539 event pairs, 4 based on Foata normal form. 30/3948 useless extension candidates. Maximal degree in co-relation 12252. Up to 480 conditions per place. [2023-11-29 19:32:35,913 INFO L140 encePairwiseOnDemand]: 84/92 looper letters, 19 selfloop transitions, 4 changer transitions 856/938 dead transitions. [2023-11-29 19:32:35,913 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 938 transitions, 9745 flow [2023-11-29 19:32:35,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 19:32:35,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 19:32:35,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 986 transitions. [2023-11-29 19:32:35,915 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8244147157190636 [2023-11-29 19:32:35,915 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 986 transitions. [2023-11-29 19:32:35,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 986 transitions. [2023-11-29 19:32:35,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:32:35,916 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 986 transitions. [2023-11-29 19:32:35,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 75.84615384615384) internal successors, (986), 13 states have internal predecessors, (986), 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 19:32:35,919 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 92.0) internal successors, (1288), 14 states have internal predecessors, (1288), 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 19:32:35,919 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 92.0) internal successors, (1288), 14 states have internal predecessors, (1288), 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 19:32:35,920 INFO L307 CegarLoopForPetriNet]: 83 programPoint places, 60 predicate places. [2023-11-29 19:32:35,920 INFO L500 AbstractCegarLoop]: Abstraction has has 143 places, 938 transitions, 9745 flow [2023-11-29 19:32:35,920 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 74.71428571428571) internal successors, (523), 7 states have internal predecessors, (523), 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 19:32:35,920 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:32:35,920 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] [2023-11-29 19:32:35,920 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 19:32:35,921 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 19:32:35,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:32:35,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1303093921, now seen corresponding path program 1 times [2023-11-29 19:32:35,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:32:35,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209331552] [2023-11-29 19:32:35,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:32:35,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:32:35,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:32:36,089 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 19:32:36,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:32:36,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209331552] [2023-11-29 19:32:36,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209331552] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:32:36,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:32:36,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 19:32:36,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011301649] [2023-11-29 19:32:36,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:32:36,093 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 19:32:36,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:32:36,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 19:32:36,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 19:32:36,094 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 92 [2023-11-29 19:32:36,095 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 938 transitions, 9745 flow. Second operand has 6 states, 6 states have (on average 75.0) internal successors, (450), 6 states have internal predecessors, (450), 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 19:32:36,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:32:36,095 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 92 [2023-11-29 19:32:36,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:32:36,738 INFO L124 PetriNetUnfolderBase]: 2183/5935 cut-off events. [2023-11-29 19:32:36,738 INFO L125 PetriNetUnfolderBase]: For 4704/5101 co-relation queries the response was YES. [2023-11-29 19:32:36,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15941 conditions, 5935 events. 2183/5935 cut-off events. For 4704/5101 co-relation queries the response was YES. Maximal size of possible extension queue 442. Compared 61638 event pairs, 43 based on Foata normal form. 69/5740 useless extension candidates. Maximal degree in co-relation 15883. Up to 1498 conditions per place. [2023-11-29 19:32:36,773 INFO L140 encePairwiseOnDemand]: 82/92 looper letters, 40 selfloop transitions, 17 changer transitions 388/608 dead transitions. [2023-11-29 19:32:36,773 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 608 transitions, 6075 flow [2023-11-29 19:32:36,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 19:32:36,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-29 19:32:36,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 780 transitions. [2023-11-29 19:32:36,775 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8478260869565217 [2023-11-29 19:32:36,775 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 780 transitions. [2023-11-29 19:32:36,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 780 transitions. [2023-11-29 19:32:36,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:32:36,775 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 780 transitions. [2023-11-29 19:32:36,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 78.0) internal successors, (780), 10 states have internal predecessors, (780), 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 19:32:36,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 92.0) internal successors, (1012), 11 states have internal predecessors, (1012), 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 19:32:36,778 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 92.0) internal successors, (1012), 11 states have internal predecessors, (1012), 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 19:32:36,778 INFO L307 CegarLoopForPetriNet]: 83 programPoint places, 69 predicate places. [2023-11-29 19:32:36,778 INFO L500 AbstractCegarLoop]: Abstraction has has 152 places, 608 transitions, 6075 flow [2023-11-29 19:32:36,779 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.0) internal successors, (450), 6 states have internal predecessors, (450), 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 19:32:36,779 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:32:36,779 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 19:32:36,779 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 19:32:36,779 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 19:32:36,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:32:36,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1355780704, now seen corresponding path program 1 times [2023-11-29 19:32:36,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:32:36,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147611565] [2023-11-29 19:32:36,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:32:36,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:32:36,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:32:36,935 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 19:32:36,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:32:36,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147611565] [2023-11-29 19:32:36,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147611565] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:32:36,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:32:36,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 19:32:36,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139716894] [2023-11-29 19:32:36,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:32:36,936 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 19:32:36,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:32:36,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 19:32:36,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 19:32:36,937 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 92 [2023-11-29 19:32:36,938 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 608 transitions, 6075 flow. Second operand has 7 states, 7 states have (on average 74.85714285714286) internal successors, (524), 7 states have internal predecessors, (524), 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 19:32:36,938 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:32:36,938 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 92 [2023-11-29 19:32:36,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:32:37,363 INFO L124 PetriNetUnfolderBase]: 1411/3774 cut-off events. [2023-11-29 19:32:37,363 INFO L125 PetriNetUnfolderBase]: For 2644/3857 co-relation queries the response was YES. [2023-11-29 19:32:37,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11047 conditions, 3774 events. 1411/3774 cut-off events. For 2644/3857 co-relation queries the response was YES. Maximal size of possible extension queue 450. Compared 36540 event pairs, 0 based on Foata normal form. 294/3868 useless extension candidates. Maximal degree in co-relation 10985. Up to 1141 conditions per place. [2023-11-29 19:32:37,380 INFO L140 encePairwiseOnDemand]: 82/92 looper letters, 27 selfloop transitions, 11 changer transitions 292/391 dead transitions. [2023-11-29 19:32:37,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 391 transitions, 3632 flow [2023-11-29 19:32:37,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 19:32:37,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 19:32:37,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1014 transitions. [2023-11-29 19:32:37,382 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8478260869565217 [2023-11-29 19:32:37,382 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1014 transitions. [2023-11-29 19:32:37,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1014 transitions. [2023-11-29 19:32:37,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:32:37,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1014 transitions. [2023-11-29 19:32:37,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 78.0) internal successors, (1014), 13 states have internal predecessors, (1014), 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 19:32:37,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 92.0) internal successors, (1288), 14 states have internal predecessors, (1288), 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 19:32:37,386 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 92.0) internal successors, (1288), 14 states have internal predecessors, (1288), 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 19:32:37,386 INFO L307 CegarLoopForPetriNet]: 83 programPoint places, 81 predicate places. [2023-11-29 19:32:37,387 INFO L500 AbstractCegarLoop]: Abstraction has has 164 places, 391 transitions, 3632 flow [2023-11-29 19:32:37,387 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 74.85714285714286) internal successors, (524), 7 states have internal predecessors, (524), 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 19:32:37,387 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:32:37,387 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, 1, 1] [2023-11-29 19:32:37,387 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 19:32:37,387 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 19:32:37,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:32:37,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1405561809, now seen corresponding path program 1 times [2023-11-29 19:32:37,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:32:37,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136917226] [2023-11-29 19:32:37,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:32:37,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:32:37,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:32:37,489 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 19:32:37,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:32:37,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136917226] [2023-11-29 19:32:37,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136917226] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:32:37,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:32:37,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 19:32:37,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794826206] [2023-11-29 19:32:37,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:32:37,490 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 19:32:37,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:32:37,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 19:32:37,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 19:32:37,491 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 92 [2023-11-29 19:32:37,491 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 391 transitions, 3632 flow. Second operand has 8 states, 8 states have (on average 74.75) internal successors, (598), 8 states have internal predecessors, (598), 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 19:32:37,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:32:37,491 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 92 [2023-11-29 19:32:37,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:32:37,895 INFO L124 PetriNetUnfolderBase]: 1200/3087 cut-off events. [2023-11-29 19:32:37,895 INFO L125 PetriNetUnfolderBase]: For 2590/4481 co-relation queries the response was YES. [2023-11-29 19:32:37,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10767 conditions, 3087 events. 1200/3087 cut-off events. For 2590/4481 co-relation queries the response was YES. Maximal size of possible extension queue 448. Compared 30068 event pairs, 0 based on Foata normal form. 342/3267 useless extension candidates. Maximal degree in co-relation 10701. Up to 950 conditions per place. [2023-11-29 19:32:37,905 INFO L140 encePairwiseOnDemand]: 82/92 looper letters, 0 selfloop transitions, 0 changer transitions 248/248 dead transitions. [2023-11-29 19:32:37,905 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 248 transitions, 2258 flow [2023-11-29 19:32:37,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 19:32:37,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-29 19:32:37,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1232 transitions. [2023-11-29 19:32:37,907 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8369565217391305 [2023-11-29 19:32:37,907 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1232 transitions. [2023-11-29 19:32:37,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1232 transitions. [2023-11-29 19:32:37,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:32:37,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1232 transitions. [2023-11-29 19:32:37,910 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 77.0) internal successors, (1232), 16 states have internal predecessors, (1232), 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 19:32:37,911 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 92.0) internal successors, (1564), 17 states have internal predecessors, (1564), 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 19:32:37,912 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 92.0) internal successors, (1564), 17 states have internal predecessors, (1564), 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 19:32:37,912 INFO L307 CegarLoopForPetriNet]: 83 programPoint places, 61 predicate places. [2023-11-29 19:32:37,912 INFO L500 AbstractCegarLoop]: Abstraction has has 144 places, 248 transitions, 2258 flow [2023-11-29 19:32:37,912 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 74.75) internal successors, (598), 8 states have internal predecessors, (598), 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 19:32:37,916 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/safe008_tso.i_BEv2_AllErrorsAtOnce [2023-11-29 19:32:37,944 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-11-29 19:32:37,944 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-11-29 19:32:37,944 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-11-29 19:32:37,944 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-11-29 19:32:37,945 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 19:32:37,945 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 19:32:37,947 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 19:32:37,947 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 19:32:37,955 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:32:37 BasicIcfg [2023-11-29 19:32:37,955 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 19:32:37,955 INFO L158 Benchmark]: Toolchain (without parser) took 5901.43ms. Allocated memory was 564.1MB in the beginning and 729.8MB in the end (delta: 165.7MB). Free memory was 523.1MB in the beginning and 594.6MB in the end (delta: -71.5MB). Peak memory consumption was 432.0MB. Max. memory is 16.0GB. [2023-11-29 19:32:37,956 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 346.0MB. Free memory is still 295.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-29 19:32:37,956 INFO L158 Benchmark]: CACSL2BoogieTranslator took 405.89ms. Allocated memory is still 564.1MB. Free memory was 522.5MB in the beginning and 502.3MB in the end (delta: 20.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-11-29 19:32:37,956 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.01ms. Allocated memory is still 564.1MB. Free memory was 502.3MB in the beginning and 500.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-29 19:32:37,957 INFO L158 Benchmark]: Boogie Preprocessor took 28.06ms. Allocated memory is still 564.1MB. Free memory was 500.2MB in the beginning and 498.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-29 19:32:37,957 INFO L158 Benchmark]: RCFGBuilder took 259.21ms. Allocated memory is still 564.1MB. Free memory was 498.7MB in the beginning and 484.5MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-11-29 19:32:37,957 INFO L158 Benchmark]: TraceAbstraction took 5156.59ms. Allocated memory was 564.1MB in the beginning and 729.8MB in the end (delta: 165.7MB). Free memory was 483.4MB in the beginning and 594.6MB in the end (delta: -111.2MB). Peak memory consumption was 392.2MB. Max. memory is 16.0GB. [2023-11-29 19:32:37,959 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 346.0MB. Free memory is still 295.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 405.89ms. Allocated memory is still 564.1MB. Free memory was 522.5MB in the beginning and 502.3MB in the end (delta: 20.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 47.01ms. Allocated memory is still 564.1MB. Free memory was 502.3MB in the beginning and 500.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 28.06ms. Allocated memory is still 564.1MB. Free memory was 500.2MB in the beginning and 498.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 259.21ms. Allocated memory is still 564.1MB. Free memory was 498.7MB in the beginning and 484.5MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 5156.59ms. Allocated memory was 564.1MB in the beginning and 729.8MB in the end (delta: 165.7MB). Free memory was 483.4MB in the beginning and 594.6MB in the end (delta: -111.2MB). Peak memory consumption was 392.2MB. 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, 118 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: 5.1s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 431 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 431 mSDsluCounter, 423 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 322 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 512 IncrementalHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 101 mSDtfsCounter, 512 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 122 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9745occurred in iteration=5, InterpolantAutomatonStates: 104, 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, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 456 NumberOfCodeBlocks, 456 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 448 ConstructedInterpolants, 0 QuantifiedInterpolants, 1702 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-29 19:32:37,974 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...