/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-24 01:51:32,401 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-24 01:51:32,493 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-VariableLbe.epf [2023-08-24 01:51:32,502 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-24 01:51:32,503 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-24 01:51:32,533 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-24 01:51:32,533 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-24 01:51:32,534 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-24 01:51:32,534 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-24 01:51:32,538 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-24 01:51:32,538 INFO L153 SettingsManager]: * Use SBE=true [2023-08-24 01:51:32,538 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-24 01:51:32,539 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-24 01:51:32,540 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-24 01:51:32,540 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-24 01:51:32,540 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-24 01:51:32,540 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-24 01:51:32,540 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-24 01:51:32,541 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-24 01:51:32,541 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-24 01:51:32,541 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-24 01:51:32,541 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-24 01:51:32,541 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-24 01:51:32,542 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-24 01:51:32,542 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-24 01:51:32,542 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-24 01:51:32,543 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-24 01:51:32,543 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 01:51:32,543 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-24 01:51:32,543 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-24 01:51:32,544 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-24 01:51:32,544 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-24 01:51:32,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-24 01:51:32,544 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-24 01:51:32,545 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-24 01:51:32,545 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-08-24 01:51:32,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-24 01:51:32,824 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-24 01:51:32,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-24 01:51:32,827 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-24 01:51:32,828 INFO L274 PluginConnector]: CDTParser initialized [2023-08-24 01:51:32,830 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c [2023-08-24 01:51:33,966 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-24 01:51:34,173 INFO L384 CDTParser]: Found 1 translation units. [2023-08-24 01:51:34,173 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c [2023-08-24 01:51:34,181 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7611125a/215b620f5da941319c5da750b43e57d5/FLAG02897a31c [2023-08-24 01:51:34,196 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7611125a/215b620f5da941319c5da750b43e57d5 [2023-08-24 01:51:34,201 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-24 01:51:34,202 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-24 01:51:34,205 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-24 01:51:34,206 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-24 01:51:34,208 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-24 01:51:34,209 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 01:51:34" (1/1) ... [2023-08-24 01:51:34,210 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f1bef5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:51:34, skipping insertion in model container [2023-08-24 01:51:34,211 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 01:51:34" (1/1) ... [2023-08-24 01:51:34,237 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-24 01:51:34,413 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c[3089,3102] [2023-08-24 01:51:34,418 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 01:51:34,427 INFO L201 MainTranslator]: Completed pre-run [2023-08-24 01:51:34,462 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c[3089,3102] [2023-08-24 01:51:34,463 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 01:51:34,469 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-24 01:51:34,469 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-24 01:51:34,486 INFO L206 MainTranslator]: Completed translation [2023-08-24 01:51:34,486 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:51:34 WrapperNode [2023-08-24 01:51:34,486 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-24 01:51:34,487 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-24 01:51:34,487 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-24 01:51:34,487 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-24 01:51:34,493 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:51:34" (1/1) ... [2023-08-24 01:51:34,499 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:51:34" (1/1) ... [2023-08-24 01:51:34,528 INFO L138 Inliner]: procedures = 22, calls = 55, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 165 [2023-08-24 01:51:34,529 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-24 01:51:34,529 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-24 01:51:34,529 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-24 01:51:34,529 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-24 01:51:34,536 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:51:34" (1/1) ... [2023-08-24 01:51:34,536 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:51:34" (1/1) ... [2023-08-24 01:51:34,541 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:51:34" (1/1) ... [2023-08-24 01:51:34,542 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:51:34" (1/1) ... [2023-08-24 01:51:34,546 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:51:34" (1/1) ... [2023-08-24 01:51:34,547 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:51:34" (1/1) ... [2023-08-24 01:51:34,557 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:51:34" (1/1) ... [2023-08-24 01:51:34,558 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:51:34" (1/1) ... [2023-08-24 01:51:34,560 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-24 01:51:34,561 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-24 01:51:34,561 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-24 01:51:34,561 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-24 01:51:34,562 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:51:34" (1/1) ... [2023-08-24 01:51:34,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 01:51:34,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-24 01:51:34,593 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) [2023-08-24 01:51:34,595 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 [2023-08-24 01:51:34,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-24 01:51:34,618 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-24 01:51:34,618 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-24 01:51:34,618 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-24 01:51:34,618 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-24 01:51:34,619 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-24 01:51:34,619 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-24 01:51:34,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-24 01:51:34,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-24 01:51:34,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-24 01:51:34,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-24 01:51:34,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-24 01:51:34,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-24 01:51:34,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-24 01:51:34,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-24 01:51:34,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-24 01:51:34,621 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-24 01:51:34,725 INFO L236 CfgBuilder]: Building ICFG [2023-08-24 01:51:34,727 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-24 01:51:34,987 INFO L277 CfgBuilder]: Performing block encoding [2023-08-24 01:51:35,068 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-24 01:51:35,068 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-24 01:51:35,070 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 01:51:35 BoogieIcfgContainer [2023-08-24 01:51:35,070 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-24 01:51:35,074 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-24 01:51:35,075 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-24 01:51:35,077 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-24 01:51:35,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.08 01:51:34" (1/3) ... [2023-08-24 01:51:35,078 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@115f6d2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 01:51:35, skipping insertion in model container [2023-08-24 01:51:35,078 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 01:51:34" (2/3) ... [2023-08-24 01:51:35,079 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@115f6d2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 01:51:35, skipping insertion in model container [2023-08-24 01:51:35,079 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 01:51:35" (3/3) ... [2023-08-24 01:51:35,080 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-3.wvr.c [2023-08-24 01:51:35,095 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-24 01:51:35,096 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-24 01:51:35,096 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-24 01:51:35,172 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-24 01:51:35,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 127 places, 119 transitions, 262 flow [2023-08-24 01:51:35,308 INFO L124 PetriNetUnfolderBase]: 2/116 cut-off events. [2023-08-24 01:51:35,309 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-24 01:51:35,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 116 events. 2/116 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 39 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2023-08-24 01:51:35,314 INFO L82 GeneralOperation]: Start removeDead. Operand has 127 places, 119 transitions, 262 flow [2023-08-24 01:51:35,318 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 114 places, 106 transitions, 230 flow [2023-08-24 01:51:35,321 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 01:51:35,330 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 114 places, 106 transitions, 230 flow [2023-08-24 01:51:35,334 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 114 places, 106 transitions, 230 flow [2023-08-24 01:51:35,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 114 places, 106 transitions, 230 flow [2023-08-24 01:51:35,393 INFO L124 PetriNetUnfolderBase]: 2/106 cut-off events. [2023-08-24 01:51:35,393 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-24 01:51:35,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 106 events. 2/106 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 38 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2023-08-24 01:51:35,396 INFO L119 LiptonReduction]: Number of co-enabled transitions 702 [2023-08-24 01:51:38,589 INFO L134 LiptonReduction]: Checked pairs total: 3460 [2023-08-24 01:51:38,589 INFO L136 LiptonReduction]: Total number of compositions: 87 [2023-08-24 01:51:38,600 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-24 01:51:38,606 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@636e524f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 01:51:38,606 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-08-24 01:51:38,614 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 01:51:38,614 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2023-08-24 01:51:38,614 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-24 01:51:38,614 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 01:51:38,615 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 01:51:38,615 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-24 01:51:38,619 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 01:51:38,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1533714414, now seen corresponding path program 1 times [2023-08-24 01:51:38,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 01:51:38,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077428249] [2023-08-24 01:51:38,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 01:51:38,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 01:51:38,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 01:51:39,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 01:51:39,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 01:51:39,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077428249] [2023-08-24 01:51:39,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077428249] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 01:51:39,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 01:51:39,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-24 01:51:39,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299003959] [2023-08-24 01:51:39,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 01:51:39,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-24 01:51:39,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 01:51:39,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-24 01:51:39,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-24 01:51:39,399 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 206 [2023-08-24 01:51:39,405 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 26 transitions, 70 flow. Second operand has 5 states, 5 states have (on average 96.2) internal successors, (481), 5 states have internal predecessors, (481), 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) [2023-08-24 01:51:39,405 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 01:51:39,405 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 206 [2023-08-24 01:51:39,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 01:51:39,709 INFO L124 PetriNetUnfolderBase]: 1139/1840 cut-off events. [2023-08-24 01:51:39,710 INFO L125 PetriNetUnfolderBase]: For 175/175 co-relation queries the response was YES. [2023-08-24 01:51:39,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3854 conditions, 1840 events. 1139/1840 cut-off events. For 175/175 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 8530 event pairs, 428 based on Foata normal form. 2/1842 useless extension candidates. Maximal degree in co-relation 3088. Up to 646 conditions per place. [2023-08-24 01:51:39,720 INFO L140 encePairwiseOnDemand]: 200/206 looper letters, 53 selfloop transitions, 7 changer transitions 17/77 dead transitions. [2023-08-24 01:51:39,720 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 77 transitions, 356 flow [2023-08-24 01:51:39,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-24 01:51:39,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-24 01:51:39,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 534 transitions. [2023-08-24 01:51:39,733 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5184466019417475 [2023-08-24 01:51:39,734 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 534 transitions. [2023-08-24 01:51:39,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 534 transitions. [2023-08-24 01:51:39,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 01:51:39,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 534 transitions. [2023-08-24 01:51:39,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 106.8) internal successors, (534), 5 states have internal predecessors, (534), 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) [2023-08-24 01:51:39,746 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 206.0) internal successors, (1236), 6 states have internal predecessors, (1236), 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) [2023-08-24 01:51:39,747 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 206.0) internal successors, (1236), 6 states have internal predecessors, (1236), 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) [2023-08-24 01:51:39,749 INFO L175 Difference]: Start difference. First operand has 36 places, 26 transitions, 70 flow. Second operand 5 states and 534 transitions. [2023-08-24 01:51:39,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 77 transitions, 356 flow [2023-08-24 01:51:39,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 77 transitions, 324 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-24 01:51:39,756 INFO L231 Difference]: Finished difference. Result has 37 places, 31 transitions, 103 flow [2023-08-24 01:51:39,757 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=103, PETRI_PLACES=37, PETRI_TRANSITIONS=31} [2023-08-24 01:51:39,760 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 1 predicate places. [2023-08-24 01:51:39,760 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 31 transitions, 103 flow [2023-08-24 01:51:39,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 96.2) internal successors, (481), 5 states have internal predecessors, (481), 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) [2023-08-24 01:51:39,761 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 01:51:39,761 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 01:51:39,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-24 01:51:39,762 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-24 01:51:39,762 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 01:51:39,762 INFO L85 PathProgramCache]: Analyzing trace with hash -667539730, now seen corresponding path program 2 times [2023-08-24 01:51:39,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 01:51:39,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356725475] [2023-08-24 01:51:39,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 01:51:39,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 01:51:39,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 01:51:39,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 01:51:39,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 01:51:39,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356725475] [2023-08-24 01:51:39,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356725475] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 01:51:39,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 01:51:39,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-24 01:51:39,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230047616] [2023-08-24 01:51:39,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 01:51:39,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-24 01:51:39,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 01:51:39,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-24 01:51:39,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-24 01:51:39,969 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 206 [2023-08-24 01:51:39,970 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 31 transitions, 103 flow. Second operand has 6 states, 6 states have (on average 95.66666666666667) internal successors, (574), 6 states have internal predecessors, (574), 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) [2023-08-24 01:51:39,970 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 01:51:39,970 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 206 [2023-08-24 01:51:39,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 01:51:40,146 INFO L124 PetriNetUnfolderBase]: 374/711 cut-off events. [2023-08-24 01:51:40,146 INFO L125 PetriNetUnfolderBase]: For 63/65 co-relation queries the response was YES. [2023-08-24 01:51:40,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1528 conditions, 711 events. 374/711 cut-off events. For 63/65 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 3344 event pairs, 57 based on Foata normal form. 28/725 useless extension candidates. Maximal degree in co-relation 1107. Up to 359 conditions per place. [2023-08-24 01:51:40,151 INFO L140 encePairwiseOnDemand]: 198/206 looper letters, 50 selfloop transitions, 15 changer transitions 0/74 dead transitions. [2023-08-24 01:51:40,151 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 74 transitions, 324 flow [2023-08-24 01:51:40,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-24 01:51:40,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-24 01:51:40,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 711 transitions. [2023-08-24 01:51:40,155 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4930651872399445 [2023-08-24 01:51:40,155 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 711 transitions. [2023-08-24 01:51:40,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 711 transitions. [2023-08-24 01:51:40,155 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 01:51:40,155 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 711 transitions. [2023-08-24 01:51:40,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 101.57142857142857) internal successors, (711), 7 states have internal predecessors, (711), 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) [2023-08-24 01:51:40,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 206.0) internal successors, (1648), 8 states have internal predecessors, (1648), 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) [2023-08-24 01:51:40,161 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 206.0) internal successors, (1648), 8 states have internal predecessors, (1648), 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) [2023-08-24 01:51:40,161 INFO L175 Difference]: Start difference. First operand has 37 places, 31 transitions, 103 flow. Second operand 7 states and 711 transitions. [2023-08-24 01:51:40,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 74 transitions, 324 flow [2023-08-24 01:51:40,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 74 transitions, 313 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-24 01:51:40,164 INFO L231 Difference]: Finished difference. Result has 45 places, 45 transitions, 182 flow [2023-08-24 01:51:40,165 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=182, PETRI_PLACES=45, PETRI_TRANSITIONS=45} [2023-08-24 01:51:40,165 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 9 predicate places. [2023-08-24 01:51:40,166 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 45 transitions, 182 flow [2023-08-24 01:51:40,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 95.66666666666667) internal successors, (574), 6 states have internal predecessors, (574), 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) [2023-08-24 01:51:40,166 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 01:51:40,166 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 01:51:40,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-24 01:51:40,167 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-24 01:51:40,167 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 01:51:40,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1742176710, now seen corresponding path program 3 times [2023-08-24 01:51:40,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 01:51:40,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783613003] [2023-08-24 01:51:40,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 01:51:40,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 01:51:40,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 01:51:40,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 01:51:40,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 01:51:40,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783613003] [2023-08-24 01:51:40,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783613003] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 01:51:40,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 01:51:40,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-24 01:51:40,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704083442] [2023-08-24 01:51:40,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 01:51:40,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-24 01:51:40,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 01:51:40,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-24 01:51:40,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-24 01:51:40,359 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 206 [2023-08-24 01:51:40,360 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 45 transitions, 182 flow. Second operand has 6 states, 6 states have (on average 95.66666666666667) internal successors, (574), 6 states have internal predecessors, (574), 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) [2023-08-24 01:51:40,360 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 01:51:40,360 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 206 [2023-08-24 01:51:40,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 01:51:40,531 INFO L124 PetriNetUnfolderBase]: 283/570 cut-off events. [2023-08-24 01:51:40,531 INFO L125 PetriNetUnfolderBase]: For 335/349 co-relation queries the response was YES. [2023-08-24 01:51:40,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1560 conditions, 570 events. 283/570 cut-off events. For 335/349 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2576 event pairs, 52 based on Foata normal form. 34/598 useless extension candidates. Maximal degree in co-relation 904. Up to 296 conditions per place. [2023-08-24 01:51:40,535 INFO L140 encePairwiseOnDemand]: 198/206 looper letters, 36 selfloop transitions, 11 changer transitions 12/68 dead transitions. [2023-08-24 01:51:40,535 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 68 transitions, 365 flow [2023-08-24 01:51:40,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-24 01:51:40,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-24 01:51:40,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 703 transitions. [2023-08-24 01:51:40,538 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48751733703190014 [2023-08-24 01:51:40,538 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 703 transitions. [2023-08-24 01:51:40,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 703 transitions. [2023-08-24 01:51:40,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 01:51:40,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 703 transitions. [2023-08-24 01:51:40,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 100.42857142857143) internal successors, (703), 7 states have internal predecessors, (703), 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) [2023-08-24 01:51:40,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 206.0) internal successors, (1648), 8 states have internal predecessors, (1648), 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) [2023-08-24 01:51:40,544 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 206.0) internal successors, (1648), 8 states have internal predecessors, (1648), 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) [2023-08-24 01:51:40,544 INFO L175 Difference]: Start difference. First operand has 45 places, 45 transitions, 182 flow. Second operand 7 states and 703 transitions. [2023-08-24 01:51:40,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 68 transitions, 365 flow [2023-08-24 01:51:40,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 68 transitions, 365 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-24 01:51:40,549 INFO L231 Difference]: Finished difference. Result has 55 places, 42 transitions, 209 flow [2023-08-24 01:51:40,549 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=209, PETRI_PLACES=55, PETRI_TRANSITIONS=42} [2023-08-24 01:51:40,550 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 19 predicate places. [2023-08-24 01:51:40,553 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 42 transitions, 209 flow [2023-08-24 01:51:40,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 95.66666666666667) internal successors, (574), 6 states have internal predecessors, (574), 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) [2023-08-24 01:51:40,554 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 01:51:40,554 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 01:51:40,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-24 01:51:40,555 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-24 01:51:40,555 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 01:51:40,555 INFO L85 PathProgramCache]: Analyzing trace with hash -77444302, now seen corresponding path program 4 times [2023-08-24 01:51:40,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 01:51:40,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454295692] [2023-08-24 01:51:40,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 01:51:40,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 01:51:40,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 01:51:40,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 01:51:40,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 01:51:40,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454295692] [2023-08-24 01:51:40,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454295692] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 01:51:40,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 01:51:40,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-24 01:51:40,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413157201] [2023-08-24 01:51:40,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 01:51:40,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-24 01:51:40,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 01:51:40,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-24 01:51:40,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-24 01:51:40,861 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 206 [2023-08-24 01:51:40,862 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 42 transitions, 209 flow. Second operand has 6 states, 6 states have (on average 95.66666666666667) internal successors, (574), 6 states have internal predecessors, (574), 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) [2023-08-24 01:51:40,862 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 01:51:40,862 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 206 [2023-08-24 01:51:40,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 01:51:40,985 INFO L124 PetriNetUnfolderBase]: 116/249 cut-off events. [2023-08-24 01:51:40,985 INFO L125 PetriNetUnfolderBase]: For 303/313 co-relation queries the response was YES. [2023-08-24 01:51:40,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 809 conditions, 249 events. 116/249 cut-off events. For 303/313 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 861 event pairs, 14 based on Foata normal form. 22/269 useless extension candidates. Maximal degree in co-relation 765. Up to 133 conditions per place. [2023-08-24 01:51:40,988 INFO L140 encePairwiseOnDemand]: 199/206 looper letters, 40 selfloop transitions, 13 changer transitions 0/59 dead transitions. [2023-08-24 01:51:40,988 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 59 transitions, 381 flow [2023-08-24 01:51:40,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-24 01:51:40,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-24 01:51:40,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 695 transitions. [2023-08-24 01:51:40,991 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48196948682385576 [2023-08-24 01:51:40,991 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 695 transitions. [2023-08-24 01:51:40,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 695 transitions. [2023-08-24 01:51:40,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 01:51:40,991 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 695 transitions. [2023-08-24 01:51:40,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 99.28571428571429) internal successors, (695), 7 states have internal predecessors, (695), 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) [2023-08-24 01:51:40,995 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 206.0) internal successors, (1648), 8 states have internal predecessors, (1648), 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) [2023-08-24 01:51:40,995 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 206.0) internal successors, (1648), 8 states have internal predecessors, (1648), 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) [2023-08-24 01:51:40,995 INFO L175 Difference]: Start difference. First operand has 55 places, 42 transitions, 209 flow. Second operand 7 states and 695 transitions. [2023-08-24 01:51:40,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 59 transitions, 381 flow [2023-08-24 01:51:40,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 59 transitions, 349 flow, removed 7 selfloop flow, removed 7 redundant places. [2023-08-24 01:51:40,998 INFO L231 Difference]: Finished difference. Result has 52 places, 42 transitions, 226 flow [2023-08-24 01:51:40,998 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=226, PETRI_PLACES=52, PETRI_TRANSITIONS=42} [2023-08-24 01:51:40,999 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 16 predicate places. [2023-08-24 01:51:40,999 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 42 transitions, 226 flow [2023-08-24 01:51:40,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 95.66666666666667) internal successors, (574), 6 states have internal predecessors, (574), 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) [2023-08-24 01:51:40,999 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 01:51:40,999 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 01:51:41,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-24 01:51:41,000 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-24 01:51:41,000 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 01:51:41,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1632386580, now seen corresponding path program 5 times [2023-08-24 01:51:41,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 01:51:41,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775526698] [2023-08-24 01:51:41,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 01:51:41,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 01:51:41,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 01:51:41,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 01:51:41,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 01:51:41,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775526698] [2023-08-24 01:51:41,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775526698] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 01:51:41,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 01:51:41,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-24 01:51:41,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415571097] [2023-08-24 01:51:41,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 01:51:41,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-24 01:51:41,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 01:51:41,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-24 01:51:41,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-08-24 01:51:41,162 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 206 [2023-08-24 01:51:41,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 42 transitions, 226 flow. Second operand has 8 states, 8 states have (on average 94.75) internal successors, (758), 8 states have internal predecessors, (758), 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) [2023-08-24 01:51:41,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 01:51:41,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 206 [2023-08-24 01:51:41,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 01:51:41,419 INFO L124 PetriNetUnfolderBase]: 179/424 cut-off events. [2023-08-24 01:51:41,419 INFO L125 PetriNetUnfolderBase]: For 542/572 co-relation queries the response was YES. [2023-08-24 01:51:41,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1341 conditions, 424 events. 179/424 cut-off events. For 542/572 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2006 event pairs, 20 based on Foata normal form. 42/466 useless extension candidates. Maximal degree in co-relation 1051. Up to 139 conditions per place. [2023-08-24 01:51:41,422 INFO L140 encePairwiseOnDemand]: 198/206 looper letters, 50 selfloop transitions, 19 changer transitions 19/94 dead transitions. [2023-08-24 01:51:41,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 94 transitions, 604 flow [2023-08-24 01:51:41,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-24 01:51:41,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-24 01:51:41,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1188 transitions. [2023-08-24 01:51:41,426 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48058252427184467 [2023-08-24 01:51:41,426 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1188 transitions. [2023-08-24 01:51:41,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1188 transitions. [2023-08-24 01:51:41,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 01:51:41,427 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1188 transitions. [2023-08-24 01:51:41,429 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 99.0) internal successors, (1188), 12 states have internal predecessors, (1188), 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) [2023-08-24 01:51:41,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 206.0) internal successors, (2678), 13 states have internal predecessors, (2678), 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) [2023-08-24 01:51:41,433 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 206.0) internal successors, (2678), 13 states have internal predecessors, (2678), 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) [2023-08-24 01:51:41,433 INFO L175 Difference]: Start difference. First operand has 52 places, 42 transitions, 226 flow. Second operand 12 states and 1188 transitions. [2023-08-24 01:51:41,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 94 transitions, 604 flow [2023-08-24 01:51:41,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 94 transitions, 597 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-24 01:51:41,437 INFO L231 Difference]: Finished difference. Result has 66 places, 48 transitions, 316 flow [2023-08-24 01:51:41,437 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=316, PETRI_PLACES=66, PETRI_TRANSITIONS=48} [2023-08-24 01:51:41,438 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 30 predicate places. [2023-08-24 01:51:41,438 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 48 transitions, 316 flow [2023-08-24 01:51:41,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 94.75) internal successors, (758), 8 states have internal predecessors, (758), 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) [2023-08-24 01:51:41,438 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 01:51:41,439 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 01:51:41,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-24 01:51:41,439 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-24 01:51:41,439 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 01:51:41,439 INFO L85 PathProgramCache]: Analyzing trace with hash -554500582, now seen corresponding path program 6 times [2023-08-24 01:51:41,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 01:51:41,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189776486] [2023-08-24 01:51:41,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 01:51:41,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 01:51:41,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 01:51:41,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 01:51:41,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 01:51:41,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189776486] [2023-08-24 01:51:41,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189776486] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 01:51:41,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 01:51:41,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-24 01:51:41,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841863713] [2023-08-24 01:51:41,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 01:51:41,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-24 01:51:41,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 01:51:41,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-24 01:51:41,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-08-24 01:51:41,638 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 206 [2023-08-24 01:51:41,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 48 transitions, 316 flow. Second operand has 8 states, 8 states have (on average 94.75) internal successors, (758), 8 states have internal predecessors, (758), 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) [2023-08-24 01:51:41,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 01:51:41,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 206 [2023-08-24 01:51:41,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 01:51:41,805 INFO L124 PetriNetUnfolderBase]: 139/334 cut-off events. [2023-08-24 01:51:41,806 INFO L125 PetriNetUnfolderBase]: For 852/864 co-relation queries the response was YES. [2023-08-24 01:51:41,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1276 conditions, 334 events. 139/334 cut-off events. For 852/864 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1411 event pairs, 26 based on Foata normal form. 16/350 useless extension candidates. Maximal degree in co-relation 945. Up to 218 conditions per place. [2023-08-24 01:51:41,808 INFO L140 encePairwiseOnDemand]: 199/206 looper letters, 45 selfloop transitions, 10 changer transitions 6/67 dead transitions. [2023-08-24 01:51:41,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 67 transitions, 497 flow [2023-08-24 01:51:41,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-24 01:51:41,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-24 01:51:41,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 881 transitions. [2023-08-24 01:51:41,811 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47518878101402373 [2023-08-24 01:51:41,811 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 881 transitions. [2023-08-24 01:51:41,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 881 transitions. [2023-08-24 01:51:41,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 01:51:41,812 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 881 transitions. [2023-08-24 01:51:41,814 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 97.88888888888889) internal successors, (881), 9 states have internal predecessors, (881), 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) [2023-08-24 01:51:41,816 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 206.0) internal successors, (2060), 10 states have internal predecessors, (2060), 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) [2023-08-24 01:51:41,816 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 206.0) internal successors, (2060), 10 states have internal predecessors, (2060), 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) [2023-08-24 01:51:41,816 INFO L175 Difference]: Start difference. First operand has 66 places, 48 transitions, 316 flow. Second operand 9 states and 881 transitions. [2023-08-24 01:51:41,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 67 transitions, 497 flow [2023-08-24 01:51:41,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 67 transitions, 462 flow, removed 10 selfloop flow, removed 6 redundant places. [2023-08-24 01:51:41,820 INFO L231 Difference]: Finished difference. Result has 65 places, 46 transitions, 285 flow [2023-08-24 01:51:41,820 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=285, PETRI_PLACES=65, PETRI_TRANSITIONS=46} [2023-08-24 01:51:41,821 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 29 predicate places. [2023-08-24 01:51:41,821 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 46 transitions, 285 flow [2023-08-24 01:51:41,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 94.75) internal successors, (758), 8 states have internal predecessors, (758), 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) [2023-08-24 01:51:41,822 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 01:51:41,822 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 01:51:41,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-24 01:51:41,822 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-24 01:51:41,823 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 01:51:41,823 INFO L85 PathProgramCache]: Analyzing trace with hash 780280328, now seen corresponding path program 7 times [2023-08-24 01:51:41,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 01:51:41,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119479558] [2023-08-24 01:51:41,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 01:51:41,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 01:51:41,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 01:51:41,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 01:51:41,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 01:51:41,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119479558] [2023-08-24 01:51:41,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119479558] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 01:51:41,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 01:51:41,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-24 01:51:41,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437864152] [2023-08-24 01:51:41,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 01:51:41,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-24 01:51:41,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 01:51:41,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-24 01:51:41,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-08-24 01:51:41,992 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 206 [2023-08-24 01:51:41,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 46 transitions, 285 flow. Second operand has 7 states, 7 states have (on average 95.14285714285714) internal successors, (666), 7 states have internal predecessors, (666), 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) [2023-08-24 01:51:41,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 01:51:41,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 206 [2023-08-24 01:51:41,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 01:51:42,141 INFO L124 PetriNetUnfolderBase]: 120/291 cut-off events. [2023-08-24 01:51:42,142 INFO L125 PetriNetUnfolderBase]: For 567/587 co-relation queries the response was YES. [2023-08-24 01:51:42,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1056 conditions, 291 events. 120/291 cut-off events. For 567/587 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1181 event pairs, 24 based on Foata normal form. 16/305 useless extension candidates. Maximal degree in co-relation 803. Up to 129 conditions per place. [2023-08-24 01:51:42,144 INFO L140 encePairwiseOnDemand]: 198/206 looper letters, 39 selfloop transitions, 13 changer transitions 11/69 dead transitions. [2023-08-24 01:51:42,144 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 69 transitions, 482 flow [2023-08-24 01:51:42,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-24 01:51:42,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-24 01:51:42,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 799 transitions. [2023-08-24 01:51:42,147 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4848300970873786 [2023-08-24 01:51:42,147 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 799 transitions. [2023-08-24 01:51:42,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 799 transitions. [2023-08-24 01:51:42,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 01:51:42,148 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 799 transitions. [2023-08-24 01:51:42,150 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 99.875) internal successors, (799), 8 states have internal predecessors, (799), 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) [2023-08-24 01:51:42,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 206.0) internal successors, (1854), 9 states have internal predecessors, (1854), 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) [2023-08-24 01:51:42,153 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 206.0) internal successors, (1854), 9 states have internal predecessors, (1854), 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) [2023-08-24 01:51:42,153 INFO L175 Difference]: Start difference. First operand has 65 places, 46 transitions, 285 flow. Second operand 8 states and 799 transitions. [2023-08-24 01:51:42,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 69 transitions, 482 flow [2023-08-24 01:51:42,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 69 transitions, 440 flow, removed 6 selfloop flow, removed 10 redundant places. [2023-08-24 01:51:42,156 INFO L231 Difference]: Finished difference. Result has 60 places, 41 transitions, 244 flow [2023-08-24 01:51:42,157 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=244, PETRI_PLACES=60, PETRI_TRANSITIONS=41} [2023-08-24 01:51:42,157 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 24 predicate places. [2023-08-24 01:51:42,157 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 41 transitions, 244 flow [2023-08-24 01:51:42,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 95.14285714285714) internal successors, (666), 7 states have internal predecessors, (666), 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) [2023-08-24 01:51:42,158 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 01:51:42,158 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 01:51:42,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-24 01:51:42,159 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-24 01:51:42,159 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 01:51:42,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1543813228, now seen corresponding path program 8 times [2023-08-24 01:51:42,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 01:51:42,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564985566] [2023-08-24 01:51:42,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 01:51:42,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 01:51:42,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 01:51:42,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 01:51:42,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 01:51:42,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564985566] [2023-08-24 01:51:42,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564985566] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 01:51:42,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 01:51:42,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-24 01:51:42,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102592713] [2023-08-24 01:51:42,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 01:51:42,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-24 01:51:42,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 01:51:42,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-24 01:51:42,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-08-24 01:51:42,321 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 206 [2023-08-24 01:51:42,322 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 41 transitions, 244 flow. Second operand has 7 states, 7 states have (on average 95.14285714285714) internal successors, (666), 7 states have internal predecessors, (666), 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) [2023-08-24 01:51:42,322 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 01:51:42,322 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 206 [2023-08-24 01:51:42,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 01:51:42,433 INFO L124 PetriNetUnfolderBase]: 104/267 cut-off events. [2023-08-24 01:51:42,433 INFO L125 PetriNetUnfolderBase]: For 421/433 co-relation queries the response was YES. [2023-08-24 01:51:42,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 930 conditions, 267 events. 104/267 cut-off events. For 421/433 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1059 event pairs, 16 based on Foata normal form. 4/271 useless extension candidates. Maximal degree in co-relation 633. Up to 106 conditions per place. [2023-08-24 01:51:42,435 INFO L140 encePairwiseOnDemand]: 198/206 looper letters, 36 selfloop transitions, 21 changer transitions 5/68 dead transitions. [2023-08-24 01:51:42,435 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 68 transitions, 471 flow [2023-08-24 01:51:42,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-24 01:51:42,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-24 01:51:42,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 697 transitions. [2023-08-24 01:51:42,437 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48335644937586686 [2023-08-24 01:51:42,437 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 697 transitions. [2023-08-24 01:51:42,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 697 transitions. [2023-08-24 01:51:42,438 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 01:51:42,438 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 697 transitions. [2023-08-24 01:51:42,439 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 99.57142857142857) internal successors, (697), 7 states have internal predecessors, (697), 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) [2023-08-24 01:51:42,441 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 206.0) internal successors, (1648), 8 states have internal predecessors, (1648), 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) [2023-08-24 01:51:42,442 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 206.0) internal successors, (1648), 8 states have internal predecessors, (1648), 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) [2023-08-24 01:51:42,442 INFO L175 Difference]: Start difference. First operand has 60 places, 41 transitions, 244 flow. Second operand 7 states and 697 transitions. [2023-08-24 01:51:42,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 68 transitions, 471 flow [2023-08-24 01:51:42,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 68 transitions, 437 flow, removed 4 selfloop flow, removed 7 redundant places. [2023-08-24 01:51:42,445 INFO L231 Difference]: Finished difference. Result has 58 places, 48 transitions, 324 flow [2023-08-24 01:51:42,445 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=324, PETRI_PLACES=58, PETRI_TRANSITIONS=48} [2023-08-24 01:51:42,445 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 22 predicate places. [2023-08-24 01:51:42,446 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 48 transitions, 324 flow [2023-08-24 01:51:42,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 95.14285714285714) internal successors, (666), 7 states have internal predecessors, (666), 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) [2023-08-24 01:51:42,446 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 01:51:42,446 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 01:51:42,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-24 01:51:42,447 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-24 01:51:42,447 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 01:51:42,447 INFO L85 PathProgramCache]: Analyzing trace with hash -510816648, now seen corresponding path program 9 times [2023-08-24 01:51:42,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 01:51:42,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646801896] [2023-08-24 01:51:42,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 01:51:42,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 01:51:42,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 01:51:42,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 01:51:42,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 01:51:42,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646801896] [2023-08-24 01:51:42,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646801896] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 01:51:42,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 01:51:42,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-24 01:51:42,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917375587] [2023-08-24 01:51:42,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 01:51:42,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-24 01:51:42,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 01:51:42,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-24 01:51:42,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-08-24 01:51:42,593 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 206 [2023-08-24 01:51:42,593 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 48 transitions, 324 flow. Second operand has 7 states, 7 states have (on average 95.14285714285714) internal successors, (666), 7 states have internal predecessors, (666), 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) [2023-08-24 01:51:42,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 01:51:42,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 206 [2023-08-24 01:51:42,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 01:51:42,696 INFO L124 PetriNetUnfolderBase]: 87/232 cut-off events. [2023-08-24 01:51:42,696 INFO L125 PetriNetUnfolderBase]: For 443/447 co-relation queries the response was YES. [2023-08-24 01:51:42,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 860 conditions, 232 events. 87/232 cut-off events. For 443/447 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 905 event pairs, 8 based on Foata normal form. 12/244 useless extension candidates. Maximal degree in co-relation 597. Up to 70 conditions per place. [2023-08-24 01:51:42,698 INFO L140 encePairwiseOnDemand]: 198/206 looper letters, 28 selfloop transitions, 16 changer transitions 15/63 dead transitions. [2023-08-24 01:51:42,698 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 63 transitions, 468 flow [2023-08-24 01:51:42,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-24 01:51:42,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-24 01:51:42,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 696 transitions. [2023-08-24 01:51:42,700 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4826629680998613 [2023-08-24 01:51:42,700 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 696 transitions. [2023-08-24 01:51:42,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 696 transitions. [2023-08-24 01:51:42,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 01:51:42,701 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 696 transitions. [2023-08-24 01:51:42,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 99.42857142857143) internal successors, (696), 7 states have internal predecessors, (696), 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) [2023-08-24 01:51:42,704 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 206.0) internal successors, (1648), 8 states have internal predecessors, (1648), 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) [2023-08-24 01:51:42,705 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 206.0) internal successors, (1648), 8 states have internal predecessors, (1648), 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) [2023-08-24 01:51:42,705 INFO L175 Difference]: Start difference. First operand has 58 places, 48 transitions, 324 flow. Second operand 7 states and 696 transitions. [2023-08-24 01:51:42,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 63 transitions, 468 flow [2023-08-24 01:51:42,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 63 transitions, 417 flow, removed 15 selfloop flow, removed 6 redundant places. [2023-08-24 01:51:42,708 INFO L231 Difference]: Finished difference. Result has 58 places, 39 transitions, 248 flow [2023-08-24 01:51:42,708 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=248, PETRI_PLACES=58, PETRI_TRANSITIONS=39} [2023-08-24 01:51:42,709 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 22 predicate places. [2023-08-24 01:51:42,709 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 39 transitions, 248 flow [2023-08-24 01:51:42,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 95.14285714285714) internal successors, (666), 7 states have internal predecessors, (666), 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) [2023-08-24 01:51:42,709 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 01:51:42,709 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 01:51:42,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-24 01:51:42,710 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-24 01:51:42,710 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 01:51:42,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1328122284, now seen corresponding path program 10 times [2023-08-24 01:51:42,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 01:51:42,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853930390] [2023-08-24 01:51:42,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 01:51:42,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 01:51:42,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 01:51:42,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 01:51:42,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 01:51:42,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853930390] [2023-08-24 01:51:42,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853930390] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 01:51:42,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 01:51:42,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-24 01:51:42,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839679860] [2023-08-24 01:51:42,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 01:51:42,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-24 01:51:42,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 01:51:42,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-24 01:51:42,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-08-24 01:51:42,881 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 206 [2023-08-24 01:51:42,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 39 transitions, 248 flow. Second operand has 8 states, 8 states have (on average 94.75) internal successors, (758), 8 states have internal predecessors, (758), 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) [2023-08-24 01:51:42,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 01:51:42,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 206 [2023-08-24 01:51:42,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 01:51:43,001 INFO L124 PetriNetUnfolderBase]: 48/133 cut-off events. [2023-08-24 01:51:43,001 INFO L125 PetriNetUnfolderBase]: For 339/343 co-relation queries the response was YES. [2023-08-24 01:51:43,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 506 conditions, 133 events. 48/133 cut-off events. For 339/343 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 379 event pairs, 8 based on Foata normal form. 8/141 useless extension candidates. Maximal degree in co-relation 316. Up to 83 conditions per place. [2023-08-24 01:51:43,002 INFO L140 encePairwiseOnDemand]: 200/206 looper letters, 30 selfloop transitions, 5 changer transitions 6/45 dead transitions. [2023-08-24 01:51:43,003 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 45 transitions, 342 flow [2023-08-24 01:51:43,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-24 01:51:43,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-24 01:51:43,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 679 transitions. [2023-08-24 01:51:43,005 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.470873786407767 [2023-08-24 01:51:43,005 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 679 transitions. [2023-08-24 01:51:43,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 679 transitions. [2023-08-24 01:51:43,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 01:51:43,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 679 transitions. [2023-08-24 01:51:43,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 97.0) internal successors, (679), 7 states have internal predecessors, (679), 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) [2023-08-24 01:51:43,009 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 206.0) internal successors, (1648), 8 states have internal predecessors, (1648), 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) [2023-08-24 01:51:43,009 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 206.0) internal successors, (1648), 8 states have internal predecessors, (1648), 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) [2023-08-24 01:51:43,009 INFO L175 Difference]: Start difference. First operand has 58 places, 39 transitions, 248 flow. Second operand 7 states and 679 transitions. [2023-08-24 01:51:43,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 45 transitions, 342 flow [2023-08-24 01:51:43,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 45 transitions, 287 flow, removed 2 selfloop flow, removed 11 redundant places. [2023-08-24 01:51:43,011 INFO L231 Difference]: Finished difference. Result has 52 places, 35 transitions, 182 flow [2023-08-24 01:51:43,011 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=182, PETRI_PLACES=52, PETRI_TRANSITIONS=35} [2023-08-24 01:51:43,012 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 16 predicate places. [2023-08-24 01:51:43,012 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 35 transitions, 182 flow [2023-08-24 01:51:43,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 94.75) internal successors, (758), 8 states have internal predecessors, (758), 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) [2023-08-24 01:51:43,013 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 01:51:43,013 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 01:51:43,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-24 01:51:43,013 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-24 01:51:43,013 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 01:51:43,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1568922924, now seen corresponding path program 11 times [2023-08-24 01:51:43,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 01:51:43,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613035928] [2023-08-24 01:51:43,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 01:51:43,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 01:51:43,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 01:51:43,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 01:51:43,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 01:51:43,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613035928] [2023-08-24 01:51:43,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613035928] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 01:51:43,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 01:51:43,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-24 01:51:43,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483603695] [2023-08-24 01:51:43,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 01:51:43,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-24 01:51:43,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 01:51:43,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-24 01:51:43,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-08-24 01:51:43,165 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 206 [2023-08-24 01:51:43,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 35 transitions, 182 flow. Second operand has 7 states, 7 states have (on average 95.14285714285714) internal successors, (666), 7 states have internal predecessors, (666), 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) [2023-08-24 01:51:43,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 01:51:43,165 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 206 [2023-08-24 01:51:43,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 01:51:43,254 INFO L124 PetriNetUnfolderBase]: 30/91 cut-off events. [2023-08-24 01:51:43,254 INFO L125 PetriNetUnfolderBase]: For 172/176 co-relation queries the response was YES. [2023-08-24 01:51:43,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 305 conditions, 91 events. 30/91 cut-off events. For 172/176 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 196 event pairs, 4 based on Foata normal form. 8/99 useless extension candidates. Maximal degree in co-relation 216. Up to 47 conditions per place. [2023-08-24 01:51:43,255 INFO L140 encePairwiseOnDemand]: 200/206 looper letters, 23 selfloop transitions, 3 changer transitions 9/39 dead transitions. [2023-08-24 01:51:43,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 39 transitions, 242 flow [2023-08-24 01:51:43,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-24 01:51:43,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-24 01:51:43,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 678 transitions. [2023-08-24 01:51:43,257 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47018030513176146 [2023-08-24 01:51:43,257 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 678 transitions. [2023-08-24 01:51:43,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 678 transitions. [2023-08-24 01:51:43,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 01:51:43,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 678 transitions. [2023-08-24 01:51:43,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 96.85714285714286) internal successors, (678), 7 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 01:51:43,261 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 206.0) internal successors, (1648), 8 states have internal predecessors, (1648), 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) [2023-08-24 01:51:43,262 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 206.0) internal successors, (1648), 8 states have internal predecessors, (1648), 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) [2023-08-24 01:51:43,262 INFO L175 Difference]: Start difference. First operand has 52 places, 35 transitions, 182 flow. Second operand 7 states and 678 transitions. [2023-08-24 01:51:43,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 39 transitions, 242 flow [2023-08-24 01:51:43,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 39 transitions, 225 flow, removed 2 selfloop flow, removed 7 redundant places. [2023-08-24 01:51:43,263 INFO L231 Difference]: Finished difference. Result has 49 places, 28 transitions, 119 flow [2023-08-24 01:51:43,264 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=119, PETRI_PLACES=49, PETRI_TRANSITIONS=28} [2023-08-24 01:51:43,264 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 13 predicate places. [2023-08-24 01:51:43,264 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 28 transitions, 119 flow [2023-08-24 01:51:43,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 95.14285714285714) internal successors, (666), 7 states have internal predecessors, (666), 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) [2023-08-24 01:51:43,265 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 01:51:43,265 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 01:51:43,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-24 01:51:43,265 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-24 01:51:43,265 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 01:51:43,265 INFO L85 PathProgramCache]: Analyzing trace with hash -764545936, now seen corresponding path program 12 times [2023-08-24 01:51:43,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 01:51:43,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492869415] [2023-08-24 01:51:43,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 01:51:43,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 01:51:43,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 01:51:43,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 01:51:43,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 01:51:43,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492869415] [2023-08-24 01:51:43,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492869415] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 01:51:43,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 01:51:43,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-24 01:51:43,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211720339] [2023-08-24 01:51:43,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 01:51:43,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-24 01:51:43,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 01:51:43,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-24 01:51:43,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-08-24 01:51:43,430 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 206 [2023-08-24 01:51:43,431 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 28 transitions, 119 flow. Second operand has 7 states, 7 states have (on average 95.14285714285714) internal successors, (666), 7 states have internal predecessors, (666), 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) [2023-08-24 01:51:43,431 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 01:51:43,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 206 [2023-08-24 01:51:43,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 01:51:43,481 INFO L124 PetriNetUnfolderBase]: 9/34 cut-off events. [2023-08-24 01:51:43,481 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-08-24 01:51:43,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 34 events. 9/34 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 42 event pairs, 0 based on Foata normal form. 4/38 useless extension candidates. Maximal degree in co-relation 108. Up to 9 conditions per place. [2023-08-24 01:51:43,481 INFO L140 encePairwiseOnDemand]: 200/206 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2023-08-24 01:51:43,481 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 20 transitions, 115 flow [2023-08-24 01:51:43,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-24 01:51:43,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-24 01:51:43,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 663 transitions. [2023-08-24 01:51:43,484 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45977808599167824 [2023-08-24 01:51:43,484 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 663 transitions. [2023-08-24 01:51:43,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 663 transitions. [2023-08-24 01:51:43,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 01:51:43,484 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 663 transitions. [2023-08-24 01:51:43,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 94.71428571428571) internal successors, (663), 7 states have internal predecessors, (663), 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) [2023-08-24 01:51:43,488 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 206.0) internal successors, (1648), 8 states have internal predecessors, (1648), 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) [2023-08-24 01:51:43,488 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 206.0) internal successors, (1648), 8 states have internal predecessors, (1648), 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) [2023-08-24 01:51:43,488 INFO L175 Difference]: Start difference. First operand has 49 places, 28 transitions, 119 flow. Second operand 7 states and 663 transitions. [2023-08-24 01:51:43,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 20 transitions, 115 flow [2023-08-24 01:51:43,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 20 transitions, 91 flow, removed 3 selfloop flow, removed 10 redundant places. [2023-08-24 01:51:43,489 INFO L231 Difference]: Finished difference. Result has 29 places, 0 transitions, 0 flow [2023-08-24 01:51:43,490 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=29, PETRI_TRANSITIONS=0} [2023-08-24 01:51:43,490 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, -7 predicate places. [2023-08-24 01:51:43,490 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 0 transitions, 0 flow [2023-08-24 01:51:43,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 95.14285714285714) internal successors, (666), 7 states have internal predecessors, (666), 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) [2023-08-24 01:51:43,493 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-08-24 01:51:43,493 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-08-24 01:51:43,493 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-08-24 01:51:43,493 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-08-24 01:51:43,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-24 01:51:43,494 INFO L445 BasicCegarLoop]: Path program histogram: [12] [2023-08-24 01:51:43,496 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-24 01:51:43,496 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-24 01:51:43,498 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.08 01:51:43 BasicIcfg [2023-08-24 01:51:43,499 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-24 01:51:43,499 INFO L158 Benchmark]: Toolchain (without parser) took 9296.75ms. Allocated memory was 379.6MB in the beginning and 585.1MB in the end (delta: 205.5MB). Free memory was 355.8MB in the beginning and 526.5MB in the end (delta: -170.7MB). Peak memory consumption was 38.3MB. Max. memory is 16.0GB. [2023-08-24 01:51:43,499 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 379.6MB. Free memory is still 356.3MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-24 01:51:43,499 INFO L158 Benchmark]: CACSL2BoogieTranslator took 281.28ms. Allocated memory is still 379.6MB. Free memory was 355.3MB in the beginning and 344.1MB in the end (delta: 11.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-24 01:51:43,500 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.47ms. Allocated memory is still 379.6MB. Free memory was 344.1MB in the beginning and 342.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-24 01:51:43,500 INFO L158 Benchmark]: Boogie Preprocessor took 31.31ms. Allocated memory is still 379.6MB. Free memory was 342.0MB in the beginning and 341.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-24 01:51:43,500 INFO L158 Benchmark]: RCFGBuilder took 509.65ms. Allocated memory is still 379.6MB. Free memory was 341.0MB in the beginning and 320.5MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-24 01:51:43,500 INFO L158 Benchmark]: TraceAbstraction took 8424.26ms. Allocated memory was 379.6MB in the beginning and 585.1MB in the end (delta: 205.5MB). Free memory was 320.0MB in the beginning and 526.5MB in the end (delta: -206.5MB). Peak memory consumption was 524.5kB. Max. memory is 16.0GB. [2023-08-24 01:51:43,501 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 379.6MB. Free memory is still 356.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 281.28ms. Allocated memory is still 379.6MB. Free memory was 355.3MB in the beginning and 344.1MB in the end (delta: 11.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 41.47ms. Allocated memory is still 379.6MB. Free memory was 344.1MB in the beginning and 342.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 31.31ms. Allocated memory is still 379.6MB. Free memory was 342.0MB in the beginning and 341.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 509.65ms. Allocated memory is still 379.6MB. Free memory was 341.0MB in the beginning and 320.5MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * TraceAbstraction took 8424.26ms. Allocated memory was 379.6MB in the beginning and 585.1MB in the end (delta: 205.5MB). Free memory was 320.0MB in the beginning and 526.5MB in the end (delta: -206.5MB). Peak memory consumption was 524.5kB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.3s, 114 PlacesBefore, 36 PlacesAfterwards, 106 TransitionsBefore, 26 TransitionsAfterwards, 702 CoEnabledTransitionPairs, 7 FixpointIterations, 61 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 87 TotalNumberOfCompositions, 3460 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1355, independent: 1175, independent conditional: 0, independent unconditional: 1175, dependent: 180, dependent conditional: 0, dependent unconditional: 180, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 340, independent: 323, independent conditional: 0, independent unconditional: 323, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1355, independent: 852, independent conditional: 0, independent unconditional: 852, dependent: 163, dependent conditional: 0, dependent unconditional: 163, unknown: 340, unknown conditional: 0, unknown unconditional: 340] , Statistics on independence cache: Total cache size (in pairs): 86, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 124]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 143 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.3s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 12, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 264 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 264 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 83 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1743 IncrementalHoareTripleChecker+Invalid, 1826 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 83 mSolverCounterUnsat, 3 mSDtfsCounter, 1743 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=324occurred in iteration=8, InterpolantAutomatonStates: 90, 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, 0.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 312 NumberOfCodeBlocks, 312 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 300 ConstructedInterpolants, 0 QuantifiedInterpolants, 1063 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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! [2023-08-24 01:51:43,525 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...