/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 14:57:43,963 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 14:57:44,053 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-12-09 14:57:44,088 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 14:57:44,088 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 14:57:44,089 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 14:57:44,090 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 14:57:44,090 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 14:57:44,090 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 14:57:44,094 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 14:57:44,095 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 14:57:44,095 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 14:57:44,095 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 14:57:44,096 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 14:57:44,096 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 14:57:44,096 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 14:57:44,097 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 14:57:44,097 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 14:57:44,097 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 14:57:44,097 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 14:57:44,097 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 14:57:44,098 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 14:57:44,098 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 14:57:44,099 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 14:57:44,099 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 14:57:44,100 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 14:57:44,100 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 14:57:44,101 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 14:57:44,101 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 14:57:44,101 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 14:57:44,102 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 14:57:44,102 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 14:57:44,102 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 14:57:44,102 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 14:57:44,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 14:57:44,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 14:57:44,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 14:57:44,346 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 14:57:44,347 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 14:57:44,347 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-12-09 14:57:45,521 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 14:57:45,767 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 14:57:45,772 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-12-09 14:57:45,785 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a86527a19/ada085b441db4513a1ff7f26c62f4c8a/FLAG81849ca47 [2023-12-09 14:57:45,797 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a86527a19/ada085b441db4513a1ff7f26c62f4c8a [2023-12-09 14:57:45,799 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 14:57:45,800 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 14:57:45,801 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 14:57:45,802 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 14:57:45,805 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 14:57:45,806 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:57:45" (1/1) ... [2023-12-09 14:57:45,807 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aef2dd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:45, skipping insertion in model container [2023-12-09 14:57:45,807 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:57:45" (1/1) ... [2023-12-09 14:57:45,857 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 14:57:45,984 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/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-12-09 14:57:46,151 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 14:57:46,163 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 14:57:46,177 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/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-12-09 14:57:46,214 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 14:57:46,242 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 14:57:46,243 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 14:57:46,249 INFO L206 MainTranslator]: Completed translation [2023-12-09 14:57:46,250 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:46 WrapperNode [2023-12-09 14:57:46,250 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 14:57:46,251 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 14:57:46,252 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 14:57:46,252 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 14:57:46,258 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:46" (1/1) ... [2023-12-09 14:57:46,284 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:46" (1/1) ... [2023-12-09 14:57:46,311 INFO L138 Inliner]: procedures = 177, calls = 66, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 84 [2023-12-09 14:57:46,312 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 14:57:46,312 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 14:57:46,313 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 14:57:46,313 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 14:57:46,320 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:46" (1/1) ... [2023-12-09 14:57:46,320 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:46" (1/1) ... [2023-12-09 14:57:46,331 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:46" (1/1) ... [2023-12-09 14:57:46,332 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:46" (1/1) ... [2023-12-09 14:57:46,336 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:46" (1/1) ... [2023-12-09 14:57:46,346 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:46" (1/1) ... [2023-12-09 14:57:46,348 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:46" (1/1) ... [2023-12-09 14:57:46,349 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:46" (1/1) ... [2023-12-09 14:57:46,351 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 14:57:46,358 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 14:57:46,358 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 14:57:46,358 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 14:57:46,359 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:46" (1/1) ... [2023-12-09 14:57:46,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 14:57:46,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 14:57:46,395 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-09 14:57:46,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-09 14:57:46,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 14:57:46,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-09 14:57:46,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 14:57:46,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 14:57:46,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 14:57:46,426 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-12-09 14:57:46,426 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-12-09 14:57:46,427 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-12-09 14:57:46,427 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-12-09 14:57:46,427 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-12-09 14:57:46,427 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-12-09 14:57:46,427 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-12-09 14:57:46,427 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-12-09 14:57:46,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 14:57:46,427 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-09 14:57:46,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 14:57:46,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 14:57:46,430 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-09 14:57:46,594 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 14:57:46,596 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 14:57:46,765 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 14:57:46,775 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 14:57:46,775 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-09 14:57:46,777 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:57:46 BoogieIcfgContainer [2023-12-09 14:57:46,777 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 14:57:46,780 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 14:57:46,780 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 14:57:46,783 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 14:57:46,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 02:57:45" (1/3) ... [2023-12-09 14:57:46,784 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41a79c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:57:46, skipping insertion in model container [2023-12-09 14:57:46,784 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:46" (2/3) ... [2023-12-09 14:57:46,785 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41a79c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:57:46, skipping insertion in model container [2023-12-09 14:57:46,785 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:57:46" (3/3) ... [2023-12-09 14:57:46,786 INFO L112 eAbstractionObserver]: Analyzing ICFG thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-12-09 14:57:46,800 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 14:57:46,801 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 14:57:46,801 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 14:57:46,876 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-09 14:57:46,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 123 places, 112 transitions, 240 flow [2023-12-09 14:57:46,963 INFO L124 PetriNetUnfolderBase]: 2/108 cut-off events. [2023-12-09 14:57:46,963 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-09 14:57:46,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 108 events. 2/108 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 90. Up to 2 conditions per place. [2023-12-09 14:57:46,968 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 112 transitions, 240 flow [2023-12-09 14:57:46,972 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 103 places, 91 transitions, 194 flow [2023-12-09 14:57:46,980 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 14:57:46,986 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;@578dbc4b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 14:57:46,986 INFO L363 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-12-09 14:57:47,008 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 14:57:47,008 INFO L124 PetriNetUnfolderBase]: 1/90 cut-off events. [2023-12-09 14:57:47,008 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-09 14:57:47,008 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:47,009 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:57:47,009 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 2 more)] === [2023-12-09 14:57:47,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:47,014 INFO L85 PathProgramCache]: Analyzing trace with hash -482207557, now seen corresponding path program 1 times [2023-12-09 14:57:47,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:47,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652135316] [2023-12-09 14:57:47,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:47,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:47,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:47,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:57:47,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:47,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652135316] [2023-12-09 14:57:47,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652135316] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:47,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:47,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 14:57:47,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140743383] [2023-12-09 14:57:47,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:47,903 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 14:57:47,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:47,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 14:57:47,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-09 14:57:47,944 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 112 [2023-12-09 14:57:47,948 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 91 transitions, 194 flow. Second operand has 6 states, 6 states have (on average 90.33333333333333) internal successors, (542), 6 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:47,948 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:47,948 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 112 [2023-12-09 14:57:47,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:48,354 INFO L124 PetriNetUnfolderBase]: 287/817 cut-off events. [2023-12-09 14:57:48,355 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2023-12-09 14:57:48,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1314 conditions, 817 events. 287/817 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 4803 event pairs, 98 based on Foata normal form. 19/813 useless extension candidates. Maximal degree in co-relation 1276. Up to 276 conditions per place. [2023-12-09 14:57:48,367 INFO L140 encePairwiseOnDemand]: 102/112 looper letters, 20 selfloop transitions, 5 changer transitions 31/128 dead transitions. [2023-12-09 14:57:48,367 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 128 transitions, 389 flow [2023-12-09 14:57:48,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-09 14:57:48,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-12-09 14:57:48,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 852 transitions. [2023-12-09 14:57:48,387 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8452380952380952 [2023-12-09 14:57:48,388 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 852 transitions. [2023-12-09 14:57:48,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 852 transitions. [2023-12-09 14:57:48,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:48,393 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 852 transitions. [2023-12-09 14:57:48,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 94.66666666666667) internal successors, (852), 9 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:48,408 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 112.0) internal successors, (1120), 10 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:48,408 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 112.0) internal successors, (1120), 10 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:48,413 INFO L308 CegarLoopForPetriNet]: 103 programPoint places, 8 predicate places. [2023-12-09 14:57:48,413 INFO L500 AbstractCegarLoop]: Abstraction has has 111 places, 128 transitions, 389 flow [2023-12-09 14:57:48,414 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 90.33333333333333) internal successors, (542), 6 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:48,414 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:48,415 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:57:48,415 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 14:57:48,415 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 2 more)] === [2023-12-09 14:57:48,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:48,417 INFO L85 PathProgramCache]: Analyzing trace with hash 824693116, now seen corresponding path program 1 times [2023-12-09 14:57:48,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:48,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780722374] [2023-12-09 14:57:48,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:48,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:48,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:48,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:57:48,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:48,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780722374] [2023-12-09 14:57:48,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780722374] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:48,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:48,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:57:48,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931565868] [2023-12-09 14:57:48,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:48,724 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:57:48,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:48,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:57:48,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:57:48,726 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 112 [2023-12-09 14:57:48,727 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 128 transitions, 389 flow. Second operand has 7 states, 7 states have (on average 90.14285714285714) internal successors, (631), 7 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:48,727 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:48,727 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 112 [2023-12-09 14:57:48,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:48,971 INFO L124 PetriNetUnfolderBase]: 300/889 cut-off events. [2023-12-09 14:57:48,972 INFO L125 PetriNetUnfolderBase]: For 72/174 co-relation queries the response was YES. [2023-12-09 14:57:48,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1916 conditions, 889 events. 300/889 cut-off events. For 72/174 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 5359 event pairs, 13 based on Foata normal form. 16/887 useless extension candidates. Maximal degree in co-relation 1871. Up to 310 conditions per place. [2023-12-09 14:57:48,979 INFO L140 encePairwiseOnDemand]: 105/112 looper letters, 24 selfloop transitions, 4 changer transitions 71/171 dead transitions. [2023-12-09 14:57:48,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 171 transitions, 759 flow [2023-12-09 14:57:48,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-09 14:57:48,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-12-09 14:57:48,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 931 transitions. [2023-12-09 14:57:48,982 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.83125 [2023-12-09 14:57:48,982 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 931 transitions. [2023-12-09 14:57:48,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 931 transitions. [2023-12-09 14:57:48,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:48,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 931 transitions. [2023-12-09 14:57:48,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 93.1) internal successors, (931), 10 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:48,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 112.0) internal successors, (1232), 11 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) [2023-12-09 14:57:48,988 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 112.0) internal successors, (1232), 11 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) [2023-12-09 14:57:48,988 INFO L308 CegarLoopForPetriNet]: 103 programPoint places, 17 predicate places. [2023-12-09 14:57:48,989 INFO L500 AbstractCegarLoop]: Abstraction has has 120 places, 171 transitions, 759 flow [2023-12-09 14:57:48,989 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 90.14285714285714) internal successors, (631), 7 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:48,989 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:48,990 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:57:48,990 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 14:57:48,990 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 2 more)] === [2023-12-09 14:57:48,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:48,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1459672164, now seen corresponding path program 1 times [2023-12-09 14:57:48,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:48,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332293115] [2023-12-09 14:57:48,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:48,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:49,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:49,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:57:49,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:49,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332293115] [2023-12-09 14:57:49,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332293115] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:49,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:49,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:57:49,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647374185] [2023-12-09 14:57:49,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:49,247 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:57:49,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:49,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:57:49,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:57:49,250 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 112 [2023-12-09 14:57:49,250 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 171 transitions, 759 flow. Second operand has 7 states, 7 states have (on average 88.28571428571429) internal successors, (618), 7 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:49,251 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:49,251 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 112 [2023-12-09 14:57:49,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:49,790 INFO L124 PetriNetUnfolderBase]: 725/2121 cut-off events. [2023-12-09 14:57:49,790 INFO L125 PetriNetUnfolderBase]: For 622/1518 co-relation queries the response was YES. [2023-12-09 14:57:49,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5418 conditions, 2121 events. 725/2121 cut-off events. For 622/1518 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 17435 event pairs, 7 based on Foata normal form. 37/2126 useless extension candidates. Maximal degree in co-relation 5365. Up to 688 conditions per place. [2023-12-09 14:57:49,807 INFO L140 encePairwiseOnDemand]: 101/112 looper letters, 34 selfloop transitions, 13 changer transitions 206/323 dead transitions. [2023-12-09 14:57:49,807 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 323 transitions, 2152 flow [2023-12-09 14:57:49,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-09 14:57:49,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-12-09 14:57:49,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1570 transitions. [2023-12-09 14:57:49,812 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8245798319327731 [2023-12-09 14:57:49,812 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1570 transitions. [2023-12-09 14:57:49,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1570 transitions. [2023-12-09 14:57:49,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:49,813 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1570 transitions. [2023-12-09 14:57:49,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 92.3529411764706) internal successors, (1570), 17 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:49,821 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 112.0) internal successors, (2016), 18 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:49,822 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 112.0) internal successors, (2016), 18 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:49,823 INFO L308 CegarLoopForPetriNet]: 103 programPoint places, 33 predicate places. [2023-12-09 14:57:49,824 INFO L500 AbstractCegarLoop]: Abstraction has has 136 places, 323 transitions, 2152 flow [2023-12-09 14:57:49,824 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 88.28571428571429) internal successors, (618), 7 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:49,824 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:49,825 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:57:49,825 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-09 14:57:49,825 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 2 more)] === [2023-12-09 14:57:49,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:49,826 INFO L85 PathProgramCache]: Analyzing trace with hash 903628701, now seen corresponding path program 1 times [2023-12-09 14:57:49,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:49,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374952507] [2023-12-09 14:57:49,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:49,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:49,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:50,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:57:50,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:50,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374952507] [2023-12-09 14:57:50,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374952507] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:50,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:50,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 14:57:50,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296601725] [2023-12-09 14:57:50,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:50,067 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 14:57:50,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:50,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 14:57:50,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-09 14:57:50,070 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 112 [2023-12-09 14:57:50,070 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 323 transitions, 2152 flow. Second operand has 8 states, 8 states have (on average 88.125) internal successors, (705), 8 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:50,070 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:50,071 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 112 [2023-12-09 14:57:50,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:50,581 INFO L124 PetriNetUnfolderBase]: 745/2241 cut-off events. [2023-12-09 14:57:50,581 INFO L125 PetriNetUnfolderBase]: For 949/2058 co-relation queries the response was YES. [2023-12-09 14:57:50,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6982 conditions, 2241 events. 745/2241 cut-off events. For 949/2058 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 18851 event pairs, 12 based on Foata normal form. 48/2260 useless extension candidates. Maximal degree in co-relation 6921. Up to 725 conditions per place. [2023-12-09 14:57:50,591 INFO L140 encePairwiseOnDemand]: 103/112 looper letters, 26 selfloop transitions, 5 changer transitions 266/367 dead transitions. [2023-12-09 14:57:50,591 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 367 transitions, 3074 flow [2023-12-09 14:57:50,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-09 14:57:50,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-12-09 14:57:50,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1273 transitions. [2023-12-09 14:57:50,595 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8118622448979592 [2023-12-09 14:57:50,595 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1273 transitions. [2023-12-09 14:57:50,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1273 transitions. [2023-12-09 14:57:50,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:50,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1273 transitions. [2023-12-09 14:57:50,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 90.92857142857143) internal successors, (1273), 14 states have internal predecessors, (1273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:50,604 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 112.0) internal successors, (1680), 15 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:50,604 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 112.0) internal successors, (1680), 15 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:50,606 INFO L308 CegarLoopForPetriNet]: 103 programPoint places, 46 predicate places. [2023-12-09 14:57:50,606 INFO L500 AbstractCegarLoop]: Abstraction has has 149 places, 367 transitions, 3074 flow [2023-12-09 14:57:50,607 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 88.125) internal successors, (705), 8 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:50,607 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:50,607 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:57:50,607 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-09 14:57:50,607 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 2 more)] === [2023-12-09 14:57:50,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:50,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1873376799, now seen corresponding path program 1 times [2023-12-09 14:57:50,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:50,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123700651] [2023-12-09 14:57:50,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:50,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:50,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:50,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:57:50,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:50,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123700651] [2023-12-09 14:57:50,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123700651] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:50,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:50,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:57:50,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454330842] [2023-12-09 14:57:50,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:50,814 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:57:50,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:50,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:57:50,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:57:50,816 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 112 [2023-12-09 14:57:50,817 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 367 transitions, 3074 flow. Second operand has 7 states, 7 states have (on average 90.28571428571429) internal successors, (632), 7 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:50,817 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:50,817 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 112 [2023-12-09 14:57:50,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:51,326 INFO L124 PetriNetUnfolderBase]: 841/2580 cut-off events. [2023-12-09 14:57:51,326 INFO L125 PetriNetUnfolderBase]: For 1852/3586 co-relation queries the response was YES. [2023-12-09 14:57:51,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9347 conditions, 2580 events. 841/2580 cut-off events. For 1852/3586 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 23322 event pairs, 7 based on Foata normal form. 18/2572 useless extension candidates. Maximal degree in co-relation 9279. Up to 895 conditions per place. [2023-12-09 14:57:51,341 INFO L140 encePairwiseOnDemand]: 106/112 looper letters, 32 selfloop transitions, 5 changer transitions 532/641 dead transitions. [2023-12-09 14:57:51,341 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 641 transitions, 6935 flow [2023-12-09 14:57:51,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-09 14:57:51,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-12-09 14:57:51,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 846 transitions. [2023-12-09 14:57:51,344 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8392857142857143 [2023-12-09 14:57:51,344 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 846 transitions. [2023-12-09 14:57:51,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 846 transitions. [2023-12-09 14:57:51,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:51,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 846 transitions. [2023-12-09 14:57:51,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 94.0) internal successors, (846), 9 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:51,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 112.0) internal successors, (1120), 10 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:51,350 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 112.0) internal successors, (1120), 10 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:51,351 INFO L308 CegarLoopForPetriNet]: 103 programPoint places, 54 predicate places. [2023-12-09 14:57:51,352 INFO L500 AbstractCegarLoop]: Abstraction has has 157 places, 641 transitions, 6935 flow [2023-12-09 14:57:51,352 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 90.28571428571429) internal successors, (632), 7 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:51,353 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:51,353 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:57:51,353 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-09 14:57:51,353 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 2 more)] === [2023-12-09 14:57:51,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:51,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1790795838, now seen corresponding path program 1 times [2023-12-09 14:57:51,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:51,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916819759] [2023-12-09 14:57:51,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:51,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:51,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:57:51,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:51,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916819759] [2023-12-09 14:57:51,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916819759] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:51,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:51,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:57:51,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402437750] [2023-12-09 14:57:51,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:51,529 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:57:51,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:51,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:57:51,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:57:51,530 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 112 [2023-12-09 14:57:51,531 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 641 transitions, 6935 flow. Second operand has 7 states, 7 states have (on average 93.85714285714286) internal successors, (657), 7 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:51,531 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:51,531 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 112 [2023-12-09 14:57:51,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:52,424 INFO L124 PetriNetUnfolderBase]: 1796/4484 cut-off events. [2023-12-09 14:57:52,424 INFO L125 PetriNetUnfolderBase]: For 8133/12401 co-relation queries the response was YES. [2023-12-09 14:57:52,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18380 conditions, 4484 events. 1796/4484 cut-off events. For 8133/12401 co-relation queries the response was YES. Maximal size of possible extension queue 461. Compared 41568 event pairs, 7 based on Foata normal form. 111/4557 useless extension candidates. Maximal degree in co-relation 18307. Up to 1672 conditions per place. [2023-12-09 14:57:52,473 INFO L140 encePairwiseOnDemand]: 104/112 looper letters, 13 selfloop transitions, 4 changer transitions 789/887 dead transitions. [2023-12-09 14:57:52,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 887 transitions, 10889 flow [2023-12-09 14:57:52,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 14:57:52,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 14:57:52,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1233 transitions. [2023-12-09 14:57:52,479 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8468406593406593 [2023-12-09 14:57:52,480 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1233 transitions. [2023-12-09 14:57:52,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1233 transitions. [2023-12-09 14:57:52,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:52,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1233 transitions. [2023-12-09 14:57:52,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 94.84615384615384) internal successors, (1233), 13 states have internal predecessors, (1233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:52,486 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 112.0) internal successors, (1568), 14 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:52,487 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 112.0) internal successors, (1568), 14 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:52,489 INFO L308 CegarLoopForPetriNet]: 103 programPoint places, 66 predicate places. [2023-12-09 14:57:52,490 INFO L500 AbstractCegarLoop]: Abstraction has has 169 places, 887 transitions, 10889 flow [2023-12-09 14:57:52,490 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 93.85714285714286) internal successors, (657), 7 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:52,490 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:52,490 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:57:52,491 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-09 14:57:52,491 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 2 more)] === [2023-12-09 14:57:52,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:52,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1124266113, now seen corresponding path program 1 times [2023-12-09 14:57:52,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:52,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333922442] [2023-12-09 14:57:52,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:52,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:52,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:52,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:57:52,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:52,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333922442] [2023-12-09 14:57:52,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333922442] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:52,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:52,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:57:52,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891867063] [2023-12-09 14:57:52,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:52,799 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:57:52,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:52,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:57:52,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:57:52,802 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 112 [2023-12-09 14:57:52,803 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 887 transitions, 10889 flow. Second operand has 7 states, 7 states have (on average 90.42857142857143) internal successors, (633), 7 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:52,803 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:52,803 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 112 [2023-12-09 14:57:52,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:54,111 INFO L124 PetriNetUnfolderBase]: 2065/6045 cut-off events. [2023-12-09 14:57:54,111 INFO L125 PetriNetUnfolderBase]: For 11339/19142 co-relation queries the response was YES. [2023-12-09 14:57:54,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25512 conditions, 6045 events. 2065/6045 cut-off events. For 11339/19142 co-relation queries the response was YES. Maximal size of possible extension queue 697. Compared 65729 event pairs, 2 based on Foata normal form. 59/6082 useless extension candidates. Maximal degree in co-relation 25432. Up to 2096 conditions per place. [2023-12-09 14:57:54,165 INFO L140 encePairwiseOnDemand]: 105/112 looper letters, 23 selfloop transitions, 7 changer transitions 1653/1755 dead transitions. [2023-12-09 14:57:54,166 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 1755 transitions, 26188 flow [2023-12-09 14:57:54,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-09 14:57:54,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-12-09 14:57:54,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 933 transitions. [2023-12-09 14:57:54,169 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8330357142857143 [2023-12-09 14:57:54,169 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 933 transitions. [2023-12-09 14:57:54,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 933 transitions. [2023-12-09 14:57:54,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:54,170 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 933 transitions. [2023-12-09 14:57:54,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 93.3) internal successors, (933), 10 states have internal predecessors, (933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:54,174 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 112.0) internal successors, (1232), 11 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) [2023-12-09 14:57:54,175 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 112.0) internal successors, (1232), 11 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) [2023-12-09 14:57:54,176 INFO L308 CegarLoopForPetriNet]: 103 programPoint places, 75 predicate places. [2023-12-09 14:57:54,176 INFO L500 AbstractCegarLoop]: Abstraction has has 178 places, 1755 transitions, 26188 flow [2023-12-09 14:57:54,176 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 90.42857142857143) internal successors, (633), 7 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:54,177 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:54,177 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:57:54,177 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-09 14:57:54,177 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 2 more)] === [2023-12-09 14:57:54,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:54,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1726078148, now seen corresponding path program 1 times [2023-12-09 14:57:54,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:54,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956470260] [2023-12-09 14:57:54,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:54,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:54,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:54,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:57:54,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:54,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956470260] [2023-12-09 14:57:54,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956470260] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:54,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:54,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 14:57:54,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079687528] [2023-12-09 14:57:54,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:54,392 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 14:57:54,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:54,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 14:57:54,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-09 14:57:54,394 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 112 [2023-12-09 14:57:54,395 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 1755 transitions, 26188 flow. Second operand has 8 states, 8 states have (on average 88.375) internal successors, (707), 8 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:54,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:54,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 112 [2023-12-09 14:57:54,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:57,480 INFO L124 PetriNetUnfolderBase]: 4409/10094 cut-off events. [2023-12-09 14:57:57,480 INFO L125 PetriNetUnfolderBase]: For 28038/51217 co-relation queries the response was YES. [2023-12-09 14:57:57,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50041 conditions, 10094 events. 4409/10094 cut-off events. For 28038/51217 co-relation queries the response was YES. Maximal size of possible extension queue 1085. Compared 103695 event pairs, 3 based on Foata normal form. 323/10382 useless extension candidates. Maximal degree in co-relation 49953. Up to 3787 conditions per place. [2023-12-09 14:57:57,577 INFO L140 encePairwiseOnDemand]: 103/112 looper letters, 17 selfloop transitions, 5 changer transitions 2937/3029 dead transitions. [2023-12-09 14:57:57,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 3029 transitions, 51826 flow [2023-12-09 14:57:57,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-09 14:57:57,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-12-09 14:57:57,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1277 transitions. [2023-12-09 14:57:57,588 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8144132653061225 [2023-12-09 14:57:57,588 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1277 transitions. [2023-12-09 14:57:57,588 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1277 transitions. [2023-12-09 14:57:57,589 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:57,590 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1277 transitions. [2023-12-09 14:57:57,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 91.21428571428571) internal successors, (1277), 14 states have internal predecessors, (1277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:57,597 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 112.0) internal successors, (1680), 15 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:57,599 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 112.0) internal successors, (1680), 15 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:57,601 INFO L308 CegarLoopForPetriNet]: 103 programPoint places, 88 predicate places. [2023-12-09 14:57:57,601 INFO L500 AbstractCegarLoop]: Abstraction has has 191 places, 3029 transitions, 51826 flow [2023-12-09 14:57:57,601 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 88.375) internal successors, (707), 8 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:57,601 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:57,602 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:57:57,602 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-09 14:57:57,602 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-12-09 14:57:57,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:57,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1689263388, now seen corresponding path program 1 times [2023-12-09 14:57:57,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:57,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966333887] [2023-12-09 14:57:57,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:57,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:57,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:57,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:57:57,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:57,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966333887] [2023-12-09 14:57:57,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966333887] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:57,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:57,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 14:57:57,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011391460] [2023-12-09 14:57:57,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:57,790 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 14:57:57,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:57,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 14:57:57,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-09 14:57:57,791 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 112 [2023-12-09 14:57:57,792 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 3029 transitions, 51826 flow. Second operand has 8 states, 8 states have (on average 88.375) internal successors, (707), 8 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:57,792 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:57,792 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 112 [2023-12-09 14:57:57,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:58:04,396 INFO L124 PetriNetUnfolderBase]: 10529/21088 cut-off events. [2023-12-09 14:58:04,396 INFO L125 PetriNetUnfolderBase]: For 82382/157970 co-relation queries the response was YES. [2023-12-09 14:58:04,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111981 conditions, 21088 events. 10529/21088 cut-off events. For 82382/157970 co-relation queries the response was YES. Maximal size of possible extension queue 2128. Compared 215738 event pairs, 4 based on Foata normal form. 694/21725 useless extension candidates. Maximal degree in co-relation 111885. Up to 7567 conditions per place. [2023-12-09 14:58:04,587 INFO L140 encePairwiseOnDemand]: 103/112 looper letters, 0 selfloop transitions, 0 changer transitions 6467/6467 dead transitions. [2023-12-09 14:58:04,587 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 6467 transitions, 125666 flow [2023-12-09 14:58:04,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-09 14:58:04,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-12-09 14:58:04,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1274 transitions. [2023-12-09 14:58:04,594 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8125 [2023-12-09 14:58:04,595 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1274 transitions. [2023-12-09 14:58:04,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1274 transitions. [2023-12-09 14:58:04,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:58:04,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1274 transitions. [2023-12-09 14:58:04,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 91.0) internal successors, (1274), 14 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:58:04,604 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 112.0) internal successors, (1680), 15 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:58:04,605 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 112.0) internal successors, (1680), 15 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:58:04,606 INFO L308 CegarLoopForPetriNet]: 103 programPoint places, 99 predicate places. [2023-12-09 14:58:04,606 INFO L500 AbstractCegarLoop]: Abstraction has has 202 places, 6467 transitions, 125666 flow [2023-12-09 14:58:04,606 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 88.375) internal successors, (707), 8 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:58:04,615 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i_BEv2_AllErrorsAtOnce [2023-12-09 14:58:04,689 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-12-09 14:58:04,690 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2023-12-09 14:58:04,690 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-12-09 14:58:04,690 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-12-09 14:58:04,690 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-12-09 14:58:04,690 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-09 14:58:04,691 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:58:04,694 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 14:58:04,694 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 14:58:04,701 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 02:58:04 BasicIcfg [2023-12-09 14:58:04,702 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 14:58:04,704 INFO L158 Benchmark]: Toolchain (without parser) took 18901.72ms. Allocated memory was 256.9MB in the beginning and 3.7GB in the end (delta: 3.4GB). Free memory was 205.0MB in the beginning and 3.0GB in the end (delta: -2.8GB). Peak memory consumption was 821.0MB. Max. memory is 8.0GB. [2023-12-09 14:58:04,704 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 183.5MB. Free memory was 136.5MB in the beginning and 136.3MB in the end (delta: 164.5kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 14:58:04,705 INFO L158 Benchmark]: CACSL2BoogieTranslator took 448.70ms. Allocated memory is still 256.9MB. Free memory was 205.0MB in the beginning and 184.0MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-12-09 14:58:04,705 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.28ms. Allocated memory is still 256.9MB. Free memory was 184.0MB in the beginning and 181.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 14:58:04,709 INFO L158 Benchmark]: Boogie Preprocessor took 39.06ms. Allocated memory is still 256.9MB. Free memory was 181.9MB in the beginning and 180.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 14:58:04,709 INFO L158 Benchmark]: RCFGBuilder took 418.91ms. Allocated memory is still 256.9MB. Free memory was 180.2MB in the beginning and 164.9MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-09 14:58:04,709 INFO L158 Benchmark]: TraceAbstraction took 17922.06ms. Allocated memory was 256.9MB in the beginning and 3.7GB in the end (delta: 3.4GB). Free memory was 164.1MB in the beginning and 3.0GB in the end (delta: -2.8GB). Peak memory consumption was 780.1MB. Max. memory is 8.0GB. [2023-12-09 14:58:04,711 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 183.5MB. Free memory was 136.5MB in the beginning and 136.3MB in the end (delta: 164.5kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 448.70ms. Allocated memory is still 256.9MB. Free memory was 205.0MB in the beginning and 184.0MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 60.28ms. Allocated memory is still 256.9MB. Free memory was 184.0MB in the beginning and 181.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 39.06ms. Allocated memory is still 256.9MB. Free memory was 181.9MB in the beginning and 180.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 418.91ms. Allocated memory is still 256.9MB. Free memory was 180.2MB in the beginning and 164.9MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 17922.06ms. Allocated memory was 256.9MB in the beginning and 3.7GB in the end (delta: 3.4GB). Free memory was 164.1MB in the beginning and 3.0GB in the end (delta: -2.8GB). Peak memory consumption was 780.1MB. 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 9 procedures, 147 locations, 5 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: 17.8s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 14.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 495 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 495 mSDsluCounter, 783 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 580 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 611 IncrementalHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 203 mSDtfsCounter, 611 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 133 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125666occurred in iteration=9, InterpolantAutomatonStates: 110, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 598 NumberOfCodeBlocks, 598 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 589 ConstructedInterpolants, 0 QuantifiedInterpolants, 3039 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-12-09 14:58:04,736 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...