/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.fix-rcfgbuilder-lbe-0ccecc1-m [2023-11-10 11:46:40,974 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-10 11:46:41,029 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 [2023-11-10 11:46:41,060 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-10 11:46:41,060 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-10 11:46:41,061 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-10 11:46:41,062 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-10 11:46:41,062 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-10 11:46:41,062 INFO L153 SettingsManager]: * Use SBE=true [2023-11-10 11:46:41,065 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-10 11:46:41,065 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-10 11:46:41,066 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-10 11:46:41,066 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-10 11:46:41,067 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-10 11:46:41,067 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-10 11:46:41,067 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-10 11:46:41,067 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-10 11:46:41,067 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-10 11:46:41,068 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-10 11:46:41,068 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-10 11:46:41,068 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-10 11:46:41,068 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-10 11:46:41,069 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-10 11:46:41,069 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-10 11:46:41,069 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-10 11:46:41,069 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:46:41,069 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-10 11:46:41,069 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-10 11:46:41,069 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-10 11:46:41,070 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-10 11:46:41,070 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-10 11:46:41,070 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-10 11:46:41,071 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-10 11:46:41,071 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-10 11:46:41,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-10 11:46:41,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-10 11:46:41,276 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-10 11:46:41,276 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-10 11:46:41,277 INFO L274 PluginConnector]: CDTParser initialized [2023-11-10 11:46:41,278 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-10 11:46:42,270 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-10 11:46:42,457 INFO L384 CDTParser]: Found 1 translation units. [2023-11-10 11:46:42,458 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-10 11:46:42,467 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/444ecee42/deff30d7df6e4431b15b2fbfdec0012b/FLAGb859468a5 [2023-11-10 11:46:42,480 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/444ecee42/deff30d7df6e4431b15b2fbfdec0012b [2023-11-10 11:46:42,484 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-10 11:46:42,486 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-10 11:46:42,488 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-10 11:46:42,488 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-10 11:46:42,492 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-10 11:46:42,493 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:46:42" (1/1) ... [2023-11-10 11:46:42,493 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@673ef35a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:46:42, skipping insertion in model container [2023-11-10 11:46:42,494 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:46:42" (1/1) ... [2023-11-10 11:46:42,535 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-10 11:46:42,627 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/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i[1017,1030] [2023-11-10 11:46:42,761 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:46:42,768 INFO L202 MainTranslator]: Completed pre-run [2023-11-10 11:46:42,778 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/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i[1017,1030] [2023-11-10 11:46:42,794 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-10 11:46:42,817 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:46:42,818 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-10 11:46:42,823 INFO L206 MainTranslator]: Completed translation [2023-11-10 11:46:42,824 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:46:42 WrapperNode [2023-11-10 11:46:42,824 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-10 11:46:42,825 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-10 11:46:42,825 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-10 11:46:42,826 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-10 11:46:42,830 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:46:42" (1/1) ... [2023-11-10 11:46:42,853 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:46:42" (1/1) ... [2023-11-10 11:46:42,871 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2023-11-10 11:46:42,871 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-10 11:46:42,872 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-10 11:46:42,872 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-10 11:46:42,872 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-10 11:46:42,877 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:46:42" (1/1) ... [2023-11-10 11:46:42,877 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:46:42" (1/1) ... [2023-11-10 11:46:42,890 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:46:42" (1/1) ... [2023-11-10 11:46:42,890 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:46:42" (1/1) ... [2023-11-10 11:46:42,894 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:46:42" (1/1) ... [2023-11-10 11:46:42,895 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:46:42" (1/1) ... [2023-11-10 11:46:42,896 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:46:42" (1/1) ... [2023-11-10 11:46:42,896 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:46:42" (1/1) ... [2023-11-10 11:46:42,898 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-10 11:46:42,898 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-10 11:46:42,899 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-10 11:46:42,899 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-10 11:46:42,899 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:46:42" (1/1) ... [2023-11-10 11:46:42,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-10 11:46:42,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-10 11:46:42,942 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) [2023-11-10 11:46:42,974 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 [2023-11-10 11:46:42,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-10 11:46:42,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-10 11:46:42,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-10 11:46:42,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-10 11:46:42,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-10 11:46:42,984 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-10 11:46:42,984 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-10 11:46:42,984 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-10 11:46:42,984 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-10 11:46:42,984 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-10 11:46:42,984 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-10 11:46:42,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-10 11:46:42,984 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-10 11:46:42,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-10 11:46:42,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-10 11:46:42,985 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-10 11:46:43,104 INFO L236 CfgBuilder]: Building ICFG [2023-11-10 11:46:43,106 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-10 11:46:43,260 INFO L277 CfgBuilder]: Performing block encoding [2023-11-10 11:46:43,272 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-10 11:46:43,272 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-10 11:46:43,275 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:46:43 BoogieIcfgContainer [2023-11-10 11:46:43,275 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-10 11:46:43,276 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-10 11:46:43,276 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-10 11:46:43,278 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-10 11:46:43,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 11:46:42" (1/3) ... [2023-11-10 11:46:43,279 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@108296c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:46:43, skipping insertion in model container [2023-11-10 11:46:43,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:46:42" (2/3) ... [2023-11-10 11:46:43,279 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@108296c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:46:43, skipping insertion in model container [2023-11-10 11:46:43,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:46:43" (3/3) ... [2023-11-10 11:46:43,280 INFO L112 eAbstractionObserver]: Analyzing ICFG safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-10 11:46:43,291 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-10 11:46:43,291 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-10 11:46:43,291 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-10 11:46:43,325 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-10 11:46:43,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 93 transitions, 198 flow [2023-11-10 11:46:43,391 INFO L124 PetriNetUnfolderBase]: 2/90 cut-off events. [2023-11-10 11:46:43,392 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-10 11:46:43,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 90 events. 2/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 53 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2023-11-10 11:46:43,395 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 93 transitions, 198 flow [2023-11-10 11:46:43,398 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 75 transitions, 159 flow [2023-11-10 11:46:43,404 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-10 11:46:43,408 INFO L357 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=false, 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;@2b4e8201, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-10 11:46:43,408 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-10 11:46:43,422 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-10 11:46:43,422 INFO L124 PetriNetUnfolderBase]: 1/74 cut-off events. [2023-11-10 11:46:43,422 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-10 11:46:43,422 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:46:43,423 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:46:43,423 INFO L420 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)] === [2023-11-10 11:46:43,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:46:43,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1283663528, now seen corresponding path program 1 times [2023-11-10 11:46:43,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:46:43,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22753583] [2023-11-10 11:46:43,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:46:43,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:46:43,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:46:43,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:46:43,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:46:43,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22753583] [2023-11-10 11:46:43,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22753583] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:46:43,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:46:43,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:46:43,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217534992] [2023-11-10 11:46:43,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:46:43,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:46:43,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:46:44,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:46:44,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:46:44,010 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 93 [2023-11-10 11:46:44,014 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 75 transitions, 159 flow. Second operand has 7 states, 7 states have (on average 73.71428571428571) internal successors, (516), 7 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:46:44,014 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:46:44,014 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 93 [2023-11-10 11:46:44,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:46:44,219 INFO L124 PetriNetUnfolderBase]: 74/306 cut-off events. [2023-11-10 11:46:44,219 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-10 11:46:44,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 469 conditions, 306 events. 74/306 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1289 event pairs, 2 based on Foata normal form. 10/307 useless extension candidates. Maximal degree in co-relation 435. Up to 56 conditions per place. [2023-11-10 11:46:44,223 INFO L140 encePairwiseOnDemand]: 86/93 looper letters, 17 selfloop transitions, 2 changer transitions 22/100 dead transitions. [2023-11-10 11:46:44,223 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 100 transitions, 297 flow [2023-11-10 11:46:44,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-10 11:46:44,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-10 11:46:44,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 693 transitions. [2023-11-10 11:46:44,234 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8279569892473119 [2023-11-10 11:46:44,234 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 693 transitions. [2023-11-10 11:46:44,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 693 transitions. [2023-11-10 11:46:44,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:46:44,238 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 693 transitions. [2023-11-10 11:46:44,242 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 77.0) internal successors, (693), 9 states have internal predecessors, (693), 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) [2023-11-10 11:46:44,246 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 93.0) internal successors, (930), 10 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:46:44,247 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 93.0) internal successors, (930), 10 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:46:44,248 INFO L175 Difference]: Start difference. First operand has 84 places, 75 transitions, 159 flow. Second operand 9 states and 693 transitions. [2023-11-10 11:46:44,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 100 transitions, 297 flow [2023-11-10 11:46:44,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 100 transitions, 292 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-10 11:46:44,253 INFO L231 Difference]: Finished difference. Result has 96 places, 74 transitions, 174 flow [2023-11-10 11:46:44,254 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=174, PETRI_PLACES=96, PETRI_TRANSITIONS=74} [2023-11-10 11:46:44,256 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 12 predicate places. [2023-11-10 11:46:44,256 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 74 transitions, 174 flow [2023-11-10 11:46:44,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 73.71428571428571) internal successors, (516), 7 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:46:44,256 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:46:44,257 INFO L208 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] [2023-11-10 11:46:44,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-10 11:46:44,257 INFO L420 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)] === [2023-11-10 11:46:44,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:46:44,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1299109509, now seen corresponding path program 1 times [2023-11-10 11:46:44,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:46:44,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514078727] [2023-11-10 11:46:44,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:46:44,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:46:44,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:46:44,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:46:44,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:46:44,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514078727] [2023-11-10 11:46:44,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514078727] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:46:44,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:46:44,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-10 11:46:44,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780215995] [2023-11-10 11:46:44,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:46:44,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-10 11:46:44,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:46:44,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-10 11:46:44,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-10 11:46:44,397 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 93 [2023-11-10 11:46:44,398 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 74 transitions, 174 flow. Second operand has 7 states, 7 states have (on average 73.85714285714286) internal successors, (517), 7 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:46:44,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:46:44,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 93 [2023-11-10 11:46:44,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:46:44,512 INFO L124 PetriNetUnfolderBase]: 29/183 cut-off events. [2023-11-10 11:46:44,512 INFO L125 PetriNetUnfolderBase]: For 36/40 co-relation queries the response was YES. [2023-11-10 11:46:44,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 327 conditions, 183 events. 29/183 cut-off events. For 36/40 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 557 event pairs, 6 based on Foata normal form. 4/180 useless extension candidates. Maximal degree in co-relation 305. Up to 24 conditions per place. [2023-11-10 11:46:44,514 INFO L140 encePairwiseOnDemand]: 86/93 looper letters, 14 selfloop transitions, 3 changer transitions 16/92 dead transitions. [2023-11-10 11:46:44,514 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 92 transitions, 297 flow [2023-11-10 11:46:44,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-10 11:46:44,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-10 11:46:44,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 755 transitions. [2023-11-10 11:46:44,517 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8118279569892473 [2023-11-10 11:46:44,517 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 755 transitions. [2023-11-10 11:46:44,517 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 755 transitions. [2023-11-10 11:46:44,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:46:44,517 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 755 transitions. [2023-11-10 11:46:44,519 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 75.5) internal successors, (755), 10 states have internal predecessors, (755), 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) [2023-11-10 11:46:44,520 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 93.0) internal successors, (1023), 11 states have internal predecessors, (1023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:46:44,521 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 93.0) internal successors, (1023), 11 states have internal predecessors, (1023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:46:44,521 INFO L175 Difference]: Start difference. First operand has 96 places, 74 transitions, 174 flow. Second operand 10 states and 755 transitions. [2023-11-10 11:46:44,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 92 transitions, 297 flow [2023-11-10 11:46:44,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 92 transitions, 263 flow, removed 14 selfloop flow, removed 8 redundant places. [2023-11-10 11:46:44,523 INFO L231 Difference]: Finished difference. Result has 98 places, 74 transitions, 180 flow [2023-11-10 11:46:44,524 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=180, PETRI_PLACES=98, PETRI_TRANSITIONS=74} [2023-11-10 11:46:44,524 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 14 predicate places. [2023-11-10 11:46:44,524 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 74 transitions, 180 flow [2023-11-10 11:46:44,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 73.85714285714286) internal successors, (517), 7 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:46:44,525 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:46:44,525 INFO L208 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] [2023-11-10 11:46:44,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-10 11:46:44,525 INFO L420 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)] === [2023-11-10 11:46:44,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:46:44,526 INFO L85 PathProgramCache]: Analyzing trace with hash -759166458, now seen corresponding path program 1 times [2023-11-10 11:46:44,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:46:44,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845390221] [2023-11-10 11:46:44,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:46:44,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:46:44,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:46:44,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:46:44,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:46:44,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845390221] [2023-11-10 11:46:44,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845390221] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:46:44,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:46:44,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-10 11:46:44,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742419876] [2023-11-10 11:46:44,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:46:44,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-10 11:46:44,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:46:44,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-10 11:46:44,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-10 11:46:44,672 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 93 [2023-11-10 11:46:44,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 74 transitions, 180 flow. Second operand has 8 states, 8 states have (on average 71.875) internal successors, (575), 8 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:46:44,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:46:44,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 93 [2023-11-10 11:46:44,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:46:44,810 INFO L124 PetriNetUnfolderBase]: 34/205 cut-off events. [2023-11-10 11:46:44,810 INFO L125 PetriNetUnfolderBase]: For 46/96 co-relation queries the response was YES. [2023-11-10 11:46:44,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 205 events. 34/205 cut-off events. For 46/96 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 733 event pairs, 10 based on Foata normal form. 4/201 useless extension candidates. Maximal degree in co-relation 351. Up to 25 conditions per place. [2023-11-10 11:46:44,812 INFO L140 encePairwiseOnDemand]: 85/93 looper letters, 15 selfloop transitions, 4 changer transitions 18/94 dead transitions. [2023-11-10 11:46:44,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 94 transitions, 319 flow [2023-11-10 11:46:44,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-10 11:46:44,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-10 11:46:44,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 739 transitions. [2023-11-10 11:46:44,813 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7946236559139785 [2023-11-10 11:46:44,814 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 739 transitions. [2023-11-10 11:46:44,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 739 transitions. [2023-11-10 11:46:44,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:46:44,814 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 739 transitions. [2023-11-10 11:46:44,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 73.9) internal successors, (739), 10 states have internal predecessors, (739), 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) [2023-11-10 11:46:44,817 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 93.0) internal successors, (1023), 11 states have internal predecessors, (1023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:46:44,817 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 93.0) internal successors, (1023), 11 states have internal predecessors, (1023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:46:44,817 INFO L175 Difference]: Start difference. First operand has 98 places, 74 transitions, 180 flow. Second operand 10 states and 739 transitions. [2023-11-10 11:46:44,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 94 transitions, 319 flow [2023-11-10 11:46:44,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 94 transitions, 285 flow, removed 14 selfloop flow, removed 9 redundant places. [2023-11-10 11:46:44,820 INFO L231 Difference]: Finished difference. Result has 100 places, 74 transitions, 192 flow [2023-11-10 11:46:44,820 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=192, PETRI_PLACES=100, PETRI_TRANSITIONS=74} [2023-11-10 11:46:44,821 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 16 predicate places. [2023-11-10 11:46:44,821 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 74 transitions, 192 flow [2023-11-10 11:46:44,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 71.875) internal successors, (575), 8 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:46:44,821 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:46:44,821 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:46:44,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-10 11:46:44,822 INFO L420 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)] === [2023-11-10 11:46:44,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:46:44,822 INFO L85 PathProgramCache]: Analyzing trace with hash -262668426, now seen corresponding path program 1 times [2023-11-10 11:46:44,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:46:44,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533193132] [2023-11-10 11:46:44,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:46:44,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:46:44,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:46:44,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:46:44,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:46:44,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533193132] [2023-11-10 11:46:44,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533193132] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:46:44,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:46:44,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-10 11:46:44,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111545900] [2023-11-10 11:46:44,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:46:44,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-10 11:46:44,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:46:44,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-10 11:46:44,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-10 11:46:44,967 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 93 [2023-11-10 11:46:44,968 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 74 transitions, 192 flow. Second operand has 8 states, 8 states have (on average 71.875) internal successors, (575), 8 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:46:44,968 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:46:44,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 93 [2023-11-10 11:46:44,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:46:45,089 INFO L124 PetriNetUnfolderBase]: 13/129 cut-off events. [2023-11-10 11:46:45,089 INFO L125 PetriNetUnfolderBase]: For 65/99 co-relation queries the response was YES. [2023-11-10 11:46:45,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 129 events. 13/129 cut-off events. For 65/99 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 327 event pairs, 3 based on Foata normal form. 3/129 useless extension candidates. Maximal degree in co-relation 240. Up to 13 conditions per place. [2023-11-10 11:46:45,090 INFO L140 encePairwiseOnDemand]: 84/93 looper letters, 13 selfloop transitions, 5 changer transitions 18/92 dead transitions. [2023-11-10 11:46:45,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 92 transitions, 341 flow [2023-11-10 11:46:45,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-10 11:46:45,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-10 11:46:45,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 807 transitions. [2023-11-10 11:46:45,093 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7888563049853372 [2023-11-10 11:46:45,093 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 807 transitions. [2023-11-10 11:46:45,093 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 807 transitions. [2023-11-10 11:46:45,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:46:45,094 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 807 transitions. [2023-11-10 11:46:45,095 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 73.36363636363636) internal successors, (807), 11 states have internal predecessors, (807), 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) [2023-11-10 11:46:45,097 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 93.0) internal successors, (1116), 12 states have internal predecessors, (1116), 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) [2023-11-10 11:46:45,097 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 93.0) internal successors, (1116), 12 states have internal predecessors, (1116), 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) [2023-11-10 11:46:45,097 INFO L175 Difference]: Start difference. First operand has 100 places, 74 transitions, 192 flow. Second operand 11 states and 807 transitions. [2023-11-10 11:46:45,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 92 transitions, 341 flow [2023-11-10 11:46:45,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 92 transitions, 278 flow, removed 23 selfloop flow, removed 11 redundant places. [2023-11-10 11:46:45,099 INFO L231 Difference]: Finished difference. Result has 101 places, 73 transitions, 192 flow [2023-11-10 11:46:45,099 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=192, PETRI_PLACES=101, PETRI_TRANSITIONS=73} [2023-11-10 11:46:45,100 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 17 predicate places. [2023-11-10 11:46:45,100 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 73 transitions, 192 flow [2023-11-10 11:46:45,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 71.875) internal successors, (575), 8 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-10 11:46:45,101 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-10 11:46:45,101 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-10 11:46:45,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-10 11:46:45,101 INFO L420 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)] === [2023-11-10 11:46:45,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-10 11:46:45,102 INFO L85 PathProgramCache]: Analyzing trace with hash -452539276, now seen corresponding path program 1 times [2023-11-10 11:46:45,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-10 11:46:45,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499175364] [2023-11-10 11:46:45,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-10 11:46:45,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-10 11:46:45,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-10 11:46:45,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-10 11:46:45,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-10 11:46:45,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499175364] [2023-11-10 11:46:45,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499175364] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-10 11:46:45,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-10 11:46:45,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-10 11:46:45,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431844973] [2023-11-10 11:46:45,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-10 11:46:45,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-10 11:46:45,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-10 11:46:45,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-10 11:46:45,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-10 11:46:45,244 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 93 [2023-11-10 11:46:45,245 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 73 transitions, 192 flow. Second operand has 8 states, 8 states have (on average 72.0) internal successors, (576), 8 states have internal predecessors, (576), 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) [2023-11-10 11:46:45,245 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-10 11:46:45,245 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 93 [2023-11-10 11:46:45,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-10 11:46:45,339 INFO L124 PetriNetUnfolderBase]: 5/86 cut-off events. [2023-11-10 11:46:45,340 INFO L125 PetriNetUnfolderBase]: For 27/32 co-relation queries the response was YES. [2023-11-10 11:46:45,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 86 events. 5/86 cut-off events. For 27/32 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 85 event pairs, 1 based on Foata normal form. 2/87 useless extension candidates. Maximal degree in co-relation 147. Up to 9 conditions per place. [2023-11-10 11:46:45,340 INFO L140 encePairwiseOnDemand]: 85/93 looper letters, 0 selfloop transitions, 0 changer transitions 78/78 dead transitions. [2023-11-10 11:46:45,340 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 78 transitions, 258 flow [2023-11-10 11:46:45,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-10 11:46:45,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-10 11:46:45,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 795 transitions. [2023-11-10 11:46:45,342 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7771260997067448 [2023-11-10 11:46:45,343 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 795 transitions. [2023-11-10 11:46:45,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 795 transitions. [2023-11-10 11:46:45,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-10 11:46:45,343 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 795 transitions. [2023-11-10 11:46:45,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 72.27272727272727) internal successors, (795), 11 states have internal predecessors, (795), 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) [2023-11-10 11:46:45,346 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 93.0) internal successors, (1116), 12 states have internal predecessors, (1116), 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) [2023-11-10 11:46:45,346 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 93.0) internal successors, (1116), 12 states have internal predecessors, (1116), 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) [2023-11-10 11:46:45,346 INFO L175 Difference]: Start difference. First operand has 101 places, 73 transitions, 192 flow. Second operand 11 states and 795 transitions. [2023-11-10 11:46:45,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 78 transitions, 258 flow [2023-11-10 11:46:45,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 78 transitions, 222 flow, removed 12 selfloop flow, removed 9 redundant places. [2023-11-10 11:46:45,348 INFO L231 Difference]: Finished difference. Result has 93 places, 0 transitions, 0 flow [2023-11-10 11:46:45,348 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=93, PETRI_TRANSITIONS=0} [2023-11-10 11:46:45,348 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 9 predicate places. [2023-11-10 11:46:45,349 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 0 transitions, 0 flow [2023-11-10 11:46:45,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 72.0) internal successors, (576), 8 states have internal predecessors, (576), 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) [2023-11-10 11:46:45,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-11-10 11:46:45,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-11-10 11:46:45,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-11-10 11:46:45,352 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-11-10 11:46:45,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-10 11:46:45,352 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-10 11:46:45,354 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-10 11:46:45,354 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-10 11:46:45,358 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 11:46:45 BasicIcfg [2023-11-10 11:46:45,358 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-10 11:46:45,358 INFO L158 Benchmark]: Toolchain (without parser) took 2872.58ms. Allocated memory was 248.5MB in the beginning and 380.6MB in the end (delta: 132.1MB). Free memory was 208.1MB in the beginning and 246.4MB in the end (delta: -38.3MB). Peak memory consumption was 95.0MB. Max. memory is 8.0GB. [2023-11-10 11:46:45,358 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 170.9MB. Free memory is still 123.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-11-10 11:46:45,359 INFO L158 Benchmark]: CACSL2BoogieTranslator took 336.59ms. Allocated memory is still 248.5MB. Free memory was 207.7MB in the beginning and 187.3MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-11-10 11:46:45,359 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.08ms. Allocated memory is still 248.5MB. Free memory was 187.3MB in the beginning and 185.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-11-10 11:46:45,359 INFO L158 Benchmark]: Boogie Preprocessor took 26.25ms. Allocated memory is still 248.5MB. Free memory was 185.2MB in the beginning and 183.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-11-10 11:46:45,360 INFO L158 Benchmark]: RCFGBuilder took 376.32ms. Allocated memory is still 248.5MB. Free memory was 183.6MB in the beginning and 170.0MB in the end (delta: 13.7MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-11-10 11:46:45,360 INFO L158 Benchmark]: TraceAbstraction took 2081.65ms. Allocated memory was 248.5MB in the beginning and 380.6MB in the end (delta: 132.1MB). Free memory was 168.9MB in the beginning and 246.4MB in the end (delta: -77.5MB). Peak memory consumption was 56.2MB. Max. memory is 8.0GB. [2023-11-10 11:46:45,361 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 170.9MB. Free memory is still 123.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 336.59ms. Allocated memory is still 248.5MB. Free memory was 207.7MB in the beginning and 187.3MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 46.08ms. Allocated memory is still 248.5MB. Free memory was 187.3MB in the beginning and 185.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.25ms. Allocated memory is still 248.5MB. Free memory was 185.2MB in the beginning and 183.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 376.32ms. Allocated memory is still 248.5MB. Free memory was 183.6MB in the beginning and 170.0MB in the end (delta: 13.7MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2081.65ms. Allocated memory was 248.5MB in the beginning and 380.6MB in the end (delta: 132.1MB). Free memory was 168.9MB in the beginning and 246.4MB in the end (delta: -77.5MB). Peak memory consumption was 56.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 119 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 208 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 208 mSDsluCounter, 307 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 228 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 209 IncrementalHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 79 mSDtfsCounter, 209 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=192occurred in iteration=3, InterpolantAutomatonStates: 51, 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, 0.9s InterpolantComputationTime, 279 NumberOfCodeBlocks, 279 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 274 ConstructedInterpolants, 0 QuantifiedInterpolants, 1432 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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! [2023-11-10 11:46:45,385 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...