/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf --rcfgbuilder.only.consider.context.switches.at.boundaries.of.atomic.blocks true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.datarace-free-lbe-02cf818-m [2023-11-17 11:30:23,313 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 11:30:23,402 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-SemanticLbe.epf [2023-11-17 11:30:23,439 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 11:30:23,445 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 11:30:23,446 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 11:30:23,446 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 11:30:23,447 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 11:30:23,447 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 11:30:23,452 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 11:30:23,453 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-17 11:30:23,454 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 11:30:23,454 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 11:30:23,455 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 11:30:23,456 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 11:30:23,456 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-17 11:30:23,456 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 11:30:23,457 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-17 11:30:23,457 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 11:30:23,457 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-17 11:30:23,457 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 11:30:23,458 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 11:30:23,459 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 11:30:23,459 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-17 11:30:23,459 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 11:30:23,459 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 11:30:23,460 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 11:30:23,460 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 11:30:23,460 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-17 11:30:23,460 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 11:30:23,461 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 11:30:23,462 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-17 11:30:23,462 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Only consider context switches at boundaries of atomic blocks -> true [2023-11-17 11:30:23,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 11:30:23,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 11:30:23,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 11:30:23,749 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 11:30:23,750 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 11:30:23,751 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2023-11-17 11:30:25,113 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 11:30:25,438 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 11:30:25,440 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2023-11-17 11:30:25,466 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/176c481c1/273edff845f04e62b43895860ac160e7/FLAGc22e33bfc [2023-11-17 11:30:25,487 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/176c481c1/273edff845f04e62b43895860ac160e7 [2023-11-17 11:30:25,490 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 11:30:25,491 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-17 11:30:25,493 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 11:30:25,493 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 11:30:25,496 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 11:30:25,497 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:30:25" (1/1) ... [2023-11-17 11:30:25,498 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fe0989a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:30:25, skipping insertion in model container [2023-11-17 11:30:25,499 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:30:25" (1/1) ... [2023-11-17 11:30:25,559 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 11:30:25,699 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-17 11:30:26,315 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i[75002,75015] [2023-11-17 11:30:26,365 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 11:30:26,376 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 11:30:26,386 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-17 11:30:26,433 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i[75002,75015] [2023-11-17 11:30:26,450 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 11:30:26,567 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 11:30:26,567 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 11:30:26,567 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 11:30:26,574 INFO L206 MainTranslator]: Completed translation [2023-11-17 11:30:26,575 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:30:26 WrapperNode [2023-11-17 11:30:26,575 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 11:30:26,576 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 11:30:26,576 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 11:30:26,576 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 11:30:26,583 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:30:26" (1/1) ... [2023-11-17 11:30:26,608 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:30:26" (1/1) ... [2023-11-17 11:30:26,643 INFO L138 Inliner]: procedures = 468, calls = 48, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 116 [2023-11-17 11:30:26,643 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 11:30:26,644 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 11:30:26,644 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 11:30:26,644 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 11:30:26,655 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:30:26" (1/1) ... [2023-11-17 11:30:26,655 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:30:26" (1/1) ... [2023-11-17 11:30:26,668 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:30:26" (1/1) ... [2023-11-17 11:30:26,673 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:30:26" (1/1) ... [2023-11-17 11:30:26,686 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:30:26" (1/1) ... [2023-11-17 11:30:26,688 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:30:26" (1/1) ... [2023-11-17 11:30:26,692 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:30:26" (1/1) ... [2023-11-17 11:30:26,694 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:30:26" (1/1) ... [2023-11-17 11:30:26,700 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 11:30:26,701 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 11:30:26,701 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 11:30:26,701 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 11:30:26,708 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:30:26" (1/1) ... [2023-11-17 11:30:26,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 11:30:26,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 11:30:26,744 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-17 11:30:26,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-17 11:30:26,767 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-17 11:30:26,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 11:30:26,768 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-17 11:30:26,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-17 11:30:26,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 11:30:26,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-17 11:30:26,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 11:30:26,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 11:30:26,768 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-11-17 11:30:26,769 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-11-17 11:30:26,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 11:30:26,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-17 11:30:26,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-17 11:30:26,770 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-17 11:30:27,017 INFO L239 CfgBuilder]: Building ICFG [2023-11-17 11:30:27,020 INFO L265 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 11:30:27,282 INFO L280 CfgBuilder]: Performing block encoding [2023-11-17 11:30:27,427 INFO L302 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 11:30:27,427 INFO L307 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-17 11:30:27,429 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:30:27 BoogieIcfgContainer [2023-11-17 11:30:27,429 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 11:30:27,432 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 11:30:27,432 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 11:30:27,435 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 11:30:27,436 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 11:30:25" (1/3) ... [2023-11-17 11:30:27,437 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@548978c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:30:27, skipping insertion in model container [2023-11-17 11:30:27,437 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:30:26" (2/3) ... [2023-11-17 11:30:27,437 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@548978c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:30:27, skipping insertion in model container [2023-11-17 11:30:27,437 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:30:27" (3/3) ... [2023-11-17 11:30:27,440 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2023-11-17 11:30:27,458 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 11:30:27,458 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-17 11:30:27,459 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-17 11:30:27,525 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-17 11:30:27,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 50 places, 50 transitions, 114 flow [2023-11-17 11:30:27,605 INFO L124 PetriNetUnfolderBase]: 8/63 cut-off events. [2023-11-17 11:30:27,606 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-17 11:30:27,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 63 events. 8/63 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 138 event pairs, 0 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 30. Up to 4 conditions per place. [2023-11-17 11:30:27,611 INFO L82 GeneralOperation]: Start removeDead. Operand has 50 places, 50 transitions, 114 flow [2023-11-17 11:30:27,617 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 43 transitions, 98 flow [2023-11-17 11:30:27,620 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-17 11:30:27,634 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 43 transitions, 98 flow [2023-11-17 11:30:27,636 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 43 transitions, 98 flow [2023-11-17 11:30:27,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 45 places, 43 transitions, 98 flow [2023-11-17 11:30:27,650 INFO L124 PetriNetUnfolderBase]: 5/54 cut-off events. [2023-11-17 11:30:27,651 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-17 11:30:27,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 54 events. 5/54 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 115 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 26. Up to 4 conditions per place. [2023-11-17 11:30:27,652 INFO L119 LiptonReduction]: Number of co-enabled transitions 330 [2023-11-17 11:30:48,303 INFO L134 LiptonReduction]: Checked pairs total: 838 [2023-11-17 11:30:48,303 INFO L136 LiptonReduction]: Total number of compositions: 34 [2023-11-17 11:30:48,322 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-17 11:30:48,327 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2f10be59, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 11:30:48,328 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-17 11:30:48,331 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-17 11:30:48,332 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2023-11-17 11:30:48,332 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 11:30:48,332 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:30:48,332 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-17 11:30:48,333 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-17 11:30:48,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:30:48,340 INFO L85 PathProgramCache]: Analyzing trace with hash 425615, now seen corresponding path program 1 times [2023-11-17 11:30:48,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:30:48,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917413978] [2023-11-17 11:30:48,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:30:48,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:30:48,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:30:48,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:30:48,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:30:48,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917413978] [2023-11-17 11:30:48,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917413978] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:30:48,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:30:48,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 11:30:48,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002219579] [2023-11-17 11:30:48,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:30:48,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 11:30:48,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:30:48,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 11:30:48,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 11:30:48,946 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 84 [2023-11-17 11:30:48,948 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 22 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:30:48,948 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:30:48,948 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 84 [2023-11-17 11:30:48,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:30:49,119 INFO L124 PetriNetUnfolderBase]: 118/222 cut-off events. [2023-11-17 11:30:49,119 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-11-17 11:30:49,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 463 conditions, 222 events. 118/222 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 746 event pairs, 93 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 404. Up to 181 conditions per place. [2023-11-17 11:30:49,123 INFO L140 encePairwiseOnDemand]: 80/84 looper letters, 24 selfloop transitions, 3 changer transitions 0/27 dead transitions. [2023-11-17 11:30:49,123 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 27 transitions, 120 flow [2023-11-17 11:30:49,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 11:30:49,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 11:30:49,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 52 transitions. [2023-11-17 11:30:49,136 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.20634920634920634 [2023-11-17 11:30:49,137 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 52 transitions. [2023-11-17 11:30:49,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 52 transitions. [2023-11-17 11:30:49,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:30:49,140 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 52 transitions. [2023-11-17 11:30:49,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:30:49,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:30:49,145 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:30:49,147 INFO L175 Difference]: Start difference. First operand has 27 places, 22 transitions, 56 flow. Second operand 3 states and 52 transitions. [2023-11-17 11:30:49,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 27 transitions, 120 flow [2023-11-17 11:30:49,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 27 transitions, 112 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-17 11:30:49,152 INFO L231 Difference]: Finished difference. Result has 24 places, 21 transitions, 52 flow [2023-11-17 11:30:49,154 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=52, PETRI_PLACES=24, PETRI_TRANSITIONS=21} [2023-11-17 11:30:49,157 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, -3 predicate places. [2023-11-17 11:30:49,157 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 21 transitions, 52 flow [2023-11-17 11:30:49,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:30:49,157 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:30:49,157 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-17 11:30:49,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-17 11:30:49,158 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-17 11:30:49,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:30:49,158 INFO L85 PathProgramCache]: Analyzing trace with hash 425629, now seen corresponding path program 1 times [2023-11-17 11:30:49,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:30:49,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956191891] [2023-11-17 11:30:49,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:30:49,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:30:49,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:30:49,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:30:49,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:30:49,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956191891] [2023-11-17 11:30:49,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956191891] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:30:49,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:30:49,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 11:30:49,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43040877] [2023-11-17 11:30:49,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:30:49,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 11:30:49,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:30:49,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 11:30:49,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 11:30:49,308 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 84 [2023-11-17 11:30:49,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 21 transitions, 52 flow. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:30:49,308 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:30:49,308 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 84 [2023-11-17 11:30:49,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:30:49,443 INFO L124 PetriNetUnfolderBase]: 123/240 cut-off events. [2023-11-17 11:30:49,443 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-11-17 11:30:49,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 521 conditions, 240 events. 123/240 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 857 event pairs, 91 based on Foata normal form. 17/255 useless extension candidates. Maximal degree in co-relation 283. Up to 215 conditions per place. [2023-11-17 11:30:49,446 INFO L140 encePairwiseOnDemand]: 77/84 looper letters, 20 selfloop transitions, 5 changer transitions 2/27 dead transitions. [2023-11-17 11:30:49,446 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 27 transitions, 118 flow [2023-11-17 11:30:49,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 11:30:49,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 11:30:49,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 76 transitions. [2023-11-17 11:30:49,448 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.30158730158730157 [2023-11-17 11:30:49,448 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 76 transitions. [2023-11-17 11:30:49,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 76 transitions. [2023-11-17 11:30:49,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:30:49,448 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 76 transitions. [2023-11-17 11:30:49,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:30:49,452 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:30:49,453 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:30:49,453 INFO L175 Difference]: Start difference. First operand has 24 places, 21 transitions, 52 flow. Second operand 3 states and 76 transitions. [2023-11-17 11:30:49,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 27 transitions, 118 flow [2023-11-17 11:30:49,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 27 transitions, 112 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-17 11:30:49,455 INFO L231 Difference]: Finished difference. Result has 25 places, 23 transitions, 75 flow [2023-11-17 11:30:49,456 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=75, PETRI_PLACES=25, PETRI_TRANSITIONS=23} [2023-11-17 11:30:49,457 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, -2 predicate places. [2023-11-17 11:30:49,457 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 23 transitions, 75 flow [2023-11-17 11:30:49,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:30:49,457 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:30:49,458 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:30:49,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-17 11:30:49,461 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-17 11:30:49,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:30:49,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1687347725, now seen corresponding path program 1 times [2023-11-17 11:30:49,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:30:49,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627092955] [2023-11-17 11:30:49,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:30:49,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:30:49,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:30:49,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:30:49,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:30:49,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627092955] [2023-11-17 11:30:49,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627092955] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:30:49,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:30:49,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 11:30:49,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423201059] [2023-11-17 11:30:49,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:30:49,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 11:30:49,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:30:49,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 11:30:49,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 11:30:49,601 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 84 [2023-11-17 11:30:49,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 23 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:30:49,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:30:49,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 84 [2023-11-17 11:30:49,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:30:49,702 INFO L124 PetriNetUnfolderBase]: 69/137 cut-off events. [2023-11-17 11:30:49,702 INFO L125 PetriNetUnfolderBase]: For 57/57 co-relation queries the response was YES. [2023-11-17 11:30:49,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 339 conditions, 137 events. 69/137 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 413 event pairs, 15 based on Foata normal form. 16/152 useless extension candidates. Maximal degree in co-relation 335. Up to 97 conditions per place. [2023-11-17 11:30:49,704 INFO L140 encePairwiseOnDemand]: 82/84 looper letters, 22 selfloop transitions, 1 changer transitions 0/23 dead transitions. [2023-11-17 11:30:49,704 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 23 transitions, 112 flow [2023-11-17 11:30:49,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 11:30:49,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 11:30:49,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 69 transitions. [2023-11-17 11:30:49,706 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.27380952380952384 [2023-11-17 11:30:49,706 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 69 transitions. [2023-11-17 11:30:49,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 69 transitions. [2023-11-17 11:30:49,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:30:49,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 69 transitions. [2023-11-17 11:30:49,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:30:49,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:30:49,709 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:30:49,709 INFO L175 Difference]: Start difference. First operand has 25 places, 23 transitions, 75 flow. Second operand 3 states and 69 transitions. [2023-11-17 11:30:49,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 23 transitions, 112 flow [2023-11-17 11:30:49,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 23 transitions, 112 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-17 11:30:49,711 INFO L231 Difference]: Finished difference. Result has 24 places, 17 transitions, 48 flow [2023-11-17 11:30:49,711 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=24, PETRI_TRANSITIONS=17} [2023-11-17 11:30:49,712 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, -3 predicate places. [2023-11-17 11:30:49,713 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 17 transitions, 48 flow [2023-11-17 11:30:49,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:30:49,713 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:30:49,713 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:30:49,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-17 11:30:49,714 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-17 11:30:49,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:30:49,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1283860337, now seen corresponding path program 1 times [2023-11-17 11:30:49,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:30:49,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940492900] [2023-11-17 11:30:49,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:30:49,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:30:49,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:30:50,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:30:50,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:30:50,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940492900] [2023-11-17 11:30:50,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940492900] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:30:50,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:30:50,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-17 11:30:50,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956810943] [2023-11-17 11:30:50,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:30:50,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-17 11:30:50,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:30:50,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-17 11:30:50,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-17 11:30:50,810 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 84 [2023-11-17 11:30:50,810 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 17 transitions, 48 flow. Second operand has 10 states, 10 states have (on average 17.6) internal successors, (176), 10 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:30:50,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:30:50,811 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 84 [2023-11-17 11:30:50,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:30:51,450 INFO L124 PetriNetUnfolderBase]: 124/258 cut-off events. [2023-11-17 11:30:51,450 INFO L125 PetriNetUnfolderBase]: For 91/91 co-relation queries the response was YES. [2023-11-17 11:30:51,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 653 conditions, 258 events. 124/258 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1025 event pairs, 0 based on Foata normal form. 0/255 useless extension candidates. Maximal degree in co-relation 648. Up to 102 conditions per place. [2023-11-17 11:30:51,452 INFO L140 encePairwiseOnDemand]: 74/84 looper letters, 50 selfloop transitions, 17 changer transitions 0/67 dead transitions. [2023-11-17 11:30:51,453 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 67 transitions, 329 flow [2023-11-17 11:30:51,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-17 11:30:51,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-17 11:30:51,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 228 transitions. [2023-11-17 11:30:51,457 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2714285714285714 [2023-11-17 11:30:51,457 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 228 transitions. [2023-11-17 11:30:51,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 228 transitions. [2023-11-17 11:30:51,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:30:51,458 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 228 transitions. [2023-11-17 11:30:51,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 22.8) internal successors, (228), 10 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:30:51,461 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 84.0) internal successors, (924), 11 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:30:51,461 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 84.0) internal successors, (924), 11 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:30:51,461 INFO L175 Difference]: Start difference. First operand has 24 places, 17 transitions, 48 flow. Second operand 10 states and 228 transitions. [2023-11-17 11:30:51,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 67 transitions, 329 flow [2023-11-17 11:30:51,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 67 transitions, 325 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-17 11:30:51,464 INFO L231 Difference]: Finished difference. Result has 37 places, 31 transitions, 156 flow [2023-11-17 11:30:51,464 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=47, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=156, PETRI_PLACES=37, PETRI_TRANSITIONS=31} [2023-11-17 11:30:51,464 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 10 predicate places. [2023-11-17 11:30:51,465 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 31 transitions, 156 flow [2023-11-17 11:30:51,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.6) internal successors, (176), 10 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:30:51,465 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:30:51,465 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:30:51,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-17 11:30:51,466 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-17 11:30:51,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:30:51,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1568862420, now seen corresponding path program 1 times [2023-11-17 11:30:51,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:30:51,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49948242] [2023-11-17 11:30:51,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:30:51,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:30:51,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:30:53,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:30:53,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:30:53,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49948242] [2023-11-17 11:30:53,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49948242] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:30:53,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:30:53,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-17 11:30:53,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675140463] [2023-11-17 11:30:53,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:30:53,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-17 11:30:53,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:30:53,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-17 11:30:53,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2023-11-17 11:30:53,191 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 84 [2023-11-17 11:30:53,192 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 31 transitions, 156 flow. Second operand has 13 states, 13 states have (on average 17.23076923076923) internal successors, (224), 13 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:30:53,192 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:30:53,192 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 84 [2023-11-17 11:30:53,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:30:53,999 INFO L124 PetriNetUnfolderBase]: 153/326 cut-off events. [2023-11-17 11:30:54,000 INFO L125 PetriNetUnfolderBase]: For 292/292 co-relation queries the response was YES. [2023-11-17 11:30:54,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1068 conditions, 326 events. 153/326 cut-off events. For 292/292 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1378 event pairs, 39 based on Foata normal form. 0/323 useless extension candidates. Maximal degree in co-relation 1058. Up to 257 conditions per place. [2023-11-17 11:30:54,003 INFO L140 encePairwiseOnDemand]: 70/84 looper letters, 51 selfloop transitions, 37 changer transitions 0/88 dead transitions. [2023-11-17 11:30:54,003 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 88 transitions, 621 flow [2023-11-17 11:30:54,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-17 11:30:54,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-17 11:30:54,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 289 transitions. [2023-11-17 11:30:54,010 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2457482993197279 [2023-11-17 11:30:54,010 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 289 transitions. [2023-11-17 11:30:54,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 289 transitions. [2023-11-17 11:30:54,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:30:54,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 289 transitions. [2023-11-17 11:30:54,012 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 20.642857142857142) internal successors, (289), 14 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:30:54,014 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 84.0) internal successors, (1260), 15 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:30:54,014 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 84.0) internal successors, (1260), 15 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:30:54,015 INFO L175 Difference]: Start difference. First operand has 37 places, 31 transitions, 156 flow. Second operand 14 states and 289 transitions. [2023-11-17 11:30:54,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 88 transitions, 621 flow [2023-11-17 11:30:54,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 88 transitions, 619 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-17 11:30:54,021 INFO L231 Difference]: Finished difference. Result has 57 places, 67 transitions, 512 flow [2023-11-17 11:30:54,021 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=512, PETRI_PLACES=57, PETRI_TRANSITIONS=67} [2023-11-17 11:30:54,023 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 30 predicate places. [2023-11-17 11:30:54,023 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 67 transitions, 512 flow [2023-11-17 11:30:54,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 17.23076923076923) internal successors, (224), 13 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:30:54,024 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:30:54,024 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:30:54,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-17 11:30:54,024 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-17 11:30:54,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:30:54,025 INFO L85 PathProgramCache]: Analyzing trace with hash 520266028, now seen corresponding path program 2 times [2023-11-17 11:30:54,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:30:54,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509784354] [2023-11-17 11:30:54,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:30:54,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:30:54,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:30:55,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:30:55,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:30:55,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509784354] [2023-11-17 11:30:55,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509784354] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:30:55,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:30:55,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-17 11:30:55,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806336251] [2023-11-17 11:30:55,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:30:55,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-17 11:30:55,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:30:55,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-17 11:30:55,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2023-11-17 11:30:55,640 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 84 [2023-11-17 11:30:55,640 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 67 transitions, 512 flow. Second operand has 13 states, 13 states have (on average 17.23076923076923) internal successors, (224), 13 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:30:55,640 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:30:55,641 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 84 [2023-11-17 11:30:55,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:30:56,563 INFO L124 PetriNetUnfolderBase]: 200/460 cut-off events. [2023-11-17 11:30:56,564 INFO L125 PetriNetUnfolderBase]: For 890/890 co-relation queries the response was YES. [2023-11-17 11:30:56,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1916 conditions, 460 events. 200/460 cut-off events. For 890/890 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2307 event pairs, 41 based on Foata normal form. 0/455 useless extension candidates. Maximal degree in co-relation 1897. Up to 275 conditions per place. [2023-11-17 11:30:56,569 INFO L140 encePairwiseOnDemand]: 70/84 looper letters, 93 selfloop transitions, 53 changer transitions 0/146 dead transitions. [2023-11-17 11:30:56,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 146 transitions, 1291 flow [2023-11-17 11:30:56,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-17 11:30:56,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-17 11:30:56,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 326 transitions. [2023-11-17 11:30:56,572 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.25873015873015875 [2023-11-17 11:30:56,572 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 326 transitions. [2023-11-17 11:30:56,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 326 transitions. [2023-11-17 11:30:56,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:30:56,572 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 326 transitions. [2023-11-17 11:30:56,573 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 21.733333333333334) internal successors, (326), 15 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:30:56,576 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 84.0) internal successors, (1344), 16 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:30:56,576 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 84.0) internal successors, (1344), 16 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:30:56,576 INFO L175 Difference]: Start difference. First operand has 57 places, 67 transitions, 512 flow. Second operand 15 states and 326 transitions. [2023-11-17 11:30:56,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 146 transitions, 1291 flow [2023-11-17 11:30:56,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 146 transitions, 1241 flow, removed 24 selfloop flow, removed 1 redundant places. [2023-11-17 11:30:56,585 INFO L231 Difference]: Finished difference. Result has 78 places, 108 transitions, 951 flow [2023-11-17 11:30:56,585 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=476, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=951, PETRI_PLACES=78, PETRI_TRANSITIONS=108} [2023-11-17 11:30:56,585 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 51 predicate places. [2023-11-17 11:30:56,586 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 108 transitions, 951 flow [2023-11-17 11:30:56,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 17.23076923076923) internal successors, (224), 13 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:30:56,586 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:30:56,586 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:30:56,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-17 11:30:56,587 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-17 11:30:56,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:30:56,587 INFO L85 PathProgramCache]: Analyzing trace with hash -207502426, now seen corresponding path program 3 times [2023-11-17 11:30:56,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:30:56,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061563804] [2023-11-17 11:30:56,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:30:56,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:30:56,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:30:57,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:30:57,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:30:57,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061563804] [2023-11-17 11:30:57,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061563804] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:30:57,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:30:57,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-17 11:30:57,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208909347] [2023-11-17 11:30:57,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:30:57,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-17 11:30:57,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:30:57,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-17 11:30:57,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2023-11-17 11:30:57,885 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 84 [2023-11-17 11:30:57,886 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 108 transitions, 951 flow. Second operand has 13 states, 13 states have (on average 17.23076923076923) internal successors, (224), 13 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:30:57,886 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:30:57,886 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 84 [2023-11-17 11:30:57,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:30:58,857 INFO L124 PetriNetUnfolderBase]: 226/553 cut-off events. [2023-11-17 11:30:58,857 INFO L125 PetriNetUnfolderBase]: For 1842/1842 co-relation queries the response was YES. [2023-11-17 11:30:58,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2719 conditions, 553 events. 226/553 cut-off events. For 1842/1842 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3139 event pairs, 65 based on Foata normal form. 2/552 useless extension candidates. Maximal degree in co-relation 2691. Up to 314 conditions per place. [2023-11-17 11:30:58,864 INFO L140 encePairwiseOnDemand]: 70/84 looper letters, 107 selfloop transitions, 62 changer transitions 0/169 dead transitions. [2023-11-17 11:30:58,864 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 169 transitions, 1749 flow [2023-11-17 11:30:58,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-17 11:30:58,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-17 11:30:58,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 341 transitions. [2023-11-17 11:30:58,866 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2537202380952381 [2023-11-17 11:30:58,866 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 341 transitions. [2023-11-17 11:30:58,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 341 transitions. [2023-11-17 11:30:58,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:30:58,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 341 transitions. [2023-11-17 11:30:58,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 21.3125) internal successors, (341), 16 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:30:58,870 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 84.0) internal successors, (1428), 17 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:30:58,870 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 84.0) internal successors, (1428), 17 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:30:58,870 INFO L175 Difference]: Start difference. First operand has 78 places, 108 transitions, 951 flow. Second operand 16 states and 341 transitions. [2023-11-17 11:30:58,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 169 transitions, 1749 flow [2023-11-17 11:30:58,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 169 transitions, 1685 flow, removed 29 selfloop flow, removed 2 redundant places. [2023-11-17 11:30:58,884 INFO L231 Difference]: Finished difference. Result has 101 places, 134 transitions, 1373 flow [2023-11-17 11:30:58,884 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=893, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1373, PETRI_PLACES=101, PETRI_TRANSITIONS=134} [2023-11-17 11:30:58,885 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 74 predicate places. [2023-11-17 11:30:58,885 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 134 transitions, 1373 flow [2023-11-17 11:30:58,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 17.23076923076923) internal successors, (224), 13 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:30:58,886 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:30:58,886 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:30:58,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-17 11:30:58,886 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-17 11:30:58,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:30:58,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1568862409, now seen corresponding path program 2 times [2023-11-17 11:30:58,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:30:58,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911161751] [2023-11-17 11:30:58,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:30:58,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:30:58,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:30:59,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:30:59,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:30:59,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911161751] [2023-11-17 11:30:59,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911161751] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:30:59,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:30:59,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-17 11:30:59,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842163371] [2023-11-17 11:30:59,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:30:59,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-17 11:30:59,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:30:59,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-17 11:30:59,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-17 11:30:59,405 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 84 [2023-11-17 11:30:59,405 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 134 transitions, 1373 flow. Second operand has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:30:59,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:30:59,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 84 [2023-11-17 11:30:59,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:30:59,696 INFO L124 PetriNetUnfolderBase]: 238/602 cut-off events. [2023-11-17 11:30:59,696 INFO L125 PetriNetUnfolderBase]: For 3371/3371 co-relation queries the response was YES. [2023-11-17 11:30:59,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3362 conditions, 602 events. 238/602 cut-off events. For 3371/3371 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 3690 event pairs, 26 based on Foata normal form. 8/608 useless extension candidates. Maximal degree in co-relation 3323. Up to 230 conditions per place. [2023-11-17 11:30:59,703 INFO L140 encePairwiseOnDemand]: 76/84 looper letters, 101 selfloop transitions, 62 changer transitions 12/175 dead transitions. [2023-11-17 11:30:59,704 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 175 transitions, 2087 flow [2023-11-17 11:30:59,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 11:30:59,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-17 11:30:59,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 154 transitions. [2023-11-17 11:30:59,706 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2619047619047619 [2023-11-17 11:30:59,706 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 154 transitions. [2023-11-17 11:30:59,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 154 transitions. [2023-11-17 11:30:59,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:30:59,706 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 154 transitions. [2023-11-17 11:30:59,707 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 22.0) internal successors, (154), 7 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:30:59,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 84.0) internal successors, (672), 8 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:30:59,708 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 84.0) internal successors, (672), 8 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:30:59,708 INFO L175 Difference]: Start difference. First operand has 101 places, 134 transitions, 1373 flow. Second operand 7 states and 154 transitions. [2023-11-17 11:30:59,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 175 transitions, 2087 flow [2023-11-17 11:30:59,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 175 transitions, 1975 flow, removed 43 selfloop flow, removed 4 redundant places. [2023-11-17 11:30:59,733 INFO L231 Difference]: Finished difference. Result has 105 places, 124 transitions, 1380 flow [2023-11-17 11:30:59,734 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=1194, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1380, PETRI_PLACES=105, PETRI_TRANSITIONS=124} [2023-11-17 11:30:59,734 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 78 predicate places. [2023-11-17 11:30:59,734 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 124 transitions, 1380 flow [2023-11-17 11:30:59,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:30:59,735 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:30:59,735 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:30:59,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-17 11:30:59,735 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-17 11:30:59,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:30:59,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1610285452, now seen corresponding path program 4 times [2023-11-17 11:30:59,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:30:59,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413645434] [2023-11-17 11:30:59,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:30:59,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:30:59,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:31:00,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:31:00,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:31:00,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413645434] [2023-11-17 11:31:00,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413645434] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:31:00,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:31:00,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-17 11:31:00,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136084483] [2023-11-17 11:31:00,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:31:00,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-17 11:31:00,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:31:00,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-17 11:31:00,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2023-11-17 11:31:00,994 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 84 [2023-11-17 11:31:00,994 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 124 transitions, 1380 flow. Second operand has 13 states, 13 states have (on average 17.23076923076923) internal successors, (224), 13 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:31:00,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:31:00,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 84 [2023-11-17 11:31:00,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:31:01,987 INFO L124 PetriNetUnfolderBase]: 221/547 cut-off events. [2023-11-17 11:31:01,988 INFO L125 PetriNetUnfolderBase]: For 3824/3824 co-relation queries the response was YES. [2023-11-17 11:31:01,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3295 conditions, 547 events. 221/547 cut-off events. For 3824/3824 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3136 event pairs, 61 based on Foata normal form. 2/547 useless extension candidates. Maximal degree in co-relation 3254. Up to 425 conditions per place. [2023-11-17 11:31:01,997 INFO L140 encePairwiseOnDemand]: 71/84 looper letters, 95 selfloop transitions, 54 changer transitions 11/160 dead transitions. [2023-11-17 11:31:01,997 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 160 transitions, 2015 flow [2023-11-17 11:31:01,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-17 11:31:01,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-17 11:31:01,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 313 transitions. [2023-11-17 11:31:01,999 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.24841269841269842 [2023-11-17 11:31:01,999 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 313 transitions. [2023-11-17 11:31:01,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 313 transitions. [2023-11-17 11:31:01,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:31:01,999 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 313 transitions. [2023-11-17 11:31:02,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 20.866666666666667) internal successors, (313), 15 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:31:02,002 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 84.0) internal successors, (1344), 16 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:31:02,002 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 84.0) internal successors, (1344), 16 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:31:02,002 INFO L175 Difference]: Start difference. First operand has 105 places, 124 transitions, 1380 flow. Second operand 15 states and 313 transitions. [2023-11-17 11:31:02,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 160 transitions, 2015 flow [2023-11-17 11:31:02,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 160 transitions, 1816 flow, removed 52 selfloop flow, removed 13 redundant places. [2023-11-17 11:31:02,020 INFO L231 Difference]: Finished difference. Result has 103 places, 132 transitions, 1484 flow [2023-11-17 11:31:02,020 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=1248, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1484, PETRI_PLACES=103, PETRI_TRANSITIONS=132} [2023-11-17 11:31:02,024 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 76 predicate places. [2023-11-17 11:31:02,024 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 132 transitions, 1484 flow [2023-11-17 11:31:02,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 17.23076923076923) internal successors, (224), 13 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:31:02,026 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:31:02,026 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:31:02,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-17 11:31:02,027 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-17 11:31:02,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:31:02,028 INFO L85 PathProgramCache]: Analyzing trace with hash -269785740, now seen corresponding path program 5 times [2023-11-17 11:31:02,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:31:02,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891167589] [2023-11-17 11:31:02,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:31:02,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:31:02,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 11:31:03,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 11:31:03,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 11:31:03,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891167589] [2023-11-17 11:31:03,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891167589] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 11:31:03,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 11:31:03,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-17 11:31:03,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155141811] [2023-11-17 11:31:03,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 11:31:03,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-17 11:31:03,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 11:31:03,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-17 11:31:03,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2023-11-17 11:31:03,267 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 84 [2023-11-17 11:31:03,267 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 132 transitions, 1484 flow. Second operand has 13 states, 13 states have (on average 17.23076923076923) internal successors, (224), 13 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:31:03,267 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 11:31:03,267 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 84 [2023-11-17 11:31:03,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 11:31:04,250 INFO L124 PetriNetUnfolderBase]: 227/579 cut-off events. [2023-11-17 11:31:04,250 INFO L125 PetriNetUnfolderBase]: For 3549/3549 co-relation queries the response was YES. [2023-11-17 11:31:04,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3333 conditions, 579 events. 227/579 cut-off events. For 3549/3549 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3448 event pairs, 28 based on Foata normal form. 1/576 useless extension candidates. Maximal degree in co-relation 3295. Up to 337 conditions per place. [2023-11-17 11:31:04,256 INFO L140 encePairwiseOnDemand]: 70/84 looper letters, 127 selfloop transitions, 68 changer transitions 10/205 dead transitions. [2023-11-17 11:31:04,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 205 transitions, 2594 flow [2023-11-17 11:31:04,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-17 11:31:04,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-17 11:31:04,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 348 transitions. [2023-11-17 11:31:04,258 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.25892857142857145 [2023-11-17 11:31:04,258 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 348 transitions. [2023-11-17 11:31:04,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 348 transitions. [2023-11-17 11:31:04,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 11:31:04,259 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 348 transitions. [2023-11-17 11:31:04,260 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 21.75) internal successors, (348), 16 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:31:04,262 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 84.0) internal successors, (1428), 17 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:31:04,262 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 84.0) internal successors, (1428), 17 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:31:04,262 INFO L175 Difference]: Start difference. First operand has 103 places, 132 transitions, 1484 flow. Second operand 16 states and 348 transitions. [2023-11-17 11:31:04,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 205 transitions, 2594 flow [2023-11-17 11:31:04,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 205 transitions, 2474 flow, removed 40 selfloop flow, removed 9 redundant places. [2023-11-17 11:31:04,282 INFO L231 Difference]: Finished difference. Result has 113 places, 162 transitions, 2001 flow [2023-11-17 11:31:04,282 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=1421, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=2001, PETRI_PLACES=113, PETRI_TRANSITIONS=162} [2023-11-17 11:31:04,283 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 86 predicate places. [2023-11-17 11:31:04,283 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 162 transitions, 2001 flow [2023-11-17 11:31:04,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 17.23076923076923) internal successors, (224), 13 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 11:31:04,283 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 11:31:04,283 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 11:31:04,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-17 11:31:04,284 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-17 11:31:04,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 11:31:04,284 INFO L85 PathProgramCache]: Analyzing trace with hash -443807812, now seen corresponding path program 6 times [2023-11-17 11:31:04,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 11:31:04,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798533441] [2023-11-17 11:31:04,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 11:31:04,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 11:31:04,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-17 11:31:04,326 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-17 11:31:04,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-17 11:31:04,405 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-17 11:31:04,405 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-17 11:31:04,406 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2023-11-17 11:31:04,407 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2023-11-17 11:31:04,408 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2023-11-17 11:31:04,408 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2023-11-17 11:31:04,408 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2023-11-17 11:31:04,408 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2023-11-17 11:31:04,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-17 11:31:04,408 INFO L445 BasicCegarLoop]: Path program histogram: [6, 2, 1, 1, 1] [2023-11-17 11:31:04,413 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-17 11:31:04,413 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-17 11:31:04,454 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre10 could not be translated [2023-11-17 11:31:04,456 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre12 could not be translated [2023-11-17 11:31:04,457 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem14 could not be translated [2023-11-17 11:31:04,458 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem14 could not be translated [2023-11-17 11:31:04,458 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet15 [2023-11-17 11:31:04,459 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem16 could not be translated [2023-11-17 11:31:04,464 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet17 [2023-11-17 11:31:04,464 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem16 could not be translated [2023-11-17 11:31:04,475 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 11:31:04 BasicIcfg [2023-11-17 11:31:04,475 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-17 11:31:04,475 INFO L158 Benchmark]: Toolchain (without parser) took 38983.97ms. Allocated memory was 190.8MB in the beginning and 404.8MB in the end (delta: 213.9MB). Free memory was 143.4MB in the beginning and 174.0MB in the end (delta: -30.6MB). Peak memory consumption was 185.7MB. Max. memory is 8.0GB. [2023-11-17 11:31:04,476 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 190.8MB. Free memory is still 148.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-11-17 11:31:04,476 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1082.52ms. Allocated memory is still 190.8MB. Free memory was 143.4MB in the beginning and 158.2MB in the end (delta: -14.8MB). Peak memory consumption was 61.0MB. Max. memory is 8.0GB. [2023-11-17 11:31:04,476 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.09ms. Allocated memory is still 190.8MB. Free memory was 157.6MB in the beginning and 154.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-11-17 11:31:04,476 INFO L158 Benchmark]: Boogie Preprocessor took 55.98ms. Allocated memory is still 190.8MB. Free memory was 154.5MB in the beginning and 151.9MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-11-17 11:31:04,476 INFO L158 Benchmark]: RCFGBuilder took 728.71ms. Allocated memory is still 190.8MB. Free memory was 151.9MB in the beginning and 112.0MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 8.0GB. [2023-11-17 11:31:04,477 INFO L158 Benchmark]: TraceAbstraction took 37042.76ms. Allocated memory was 190.8MB in the beginning and 404.8MB in the end (delta: 213.9MB). Free memory was 111.5MB in the beginning and 174.0MB in the end (delta: -62.5MB). Peak memory consumption was 151.9MB. Max. memory is 8.0GB. [2023-11-17 11:31:04,478 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 190.8MB. Free memory is still 148.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1082.52ms. Allocated memory is still 190.8MB. Free memory was 143.4MB in the beginning and 158.2MB in the end (delta: -14.8MB). Peak memory consumption was 61.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 67.09ms. Allocated memory is still 190.8MB. Free memory was 157.6MB in the beginning and 154.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 55.98ms. Allocated memory is still 190.8MB. Free memory was 154.5MB in the beginning and 151.9MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 728.71ms. Allocated memory is still 190.8MB. Free memory was 151.9MB in the beginning and 112.0MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 8.0GB. * TraceAbstraction took 37042.76ms. Allocated memory was 190.8MB in the beginning and 404.8MB in the end (delta: 213.9MB). Free memory was 111.5MB in the beginning and 174.0MB in the end (delta: -62.5MB). Peak memory consumption was 151.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet15 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet17 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem16 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.7s, 45 PlacesBefore, 27 PlacesAfterwards, 43 TransitionsBefore, 22 TransitionsAfterwards, 330 CoEnabledTransitionPairs, 4 FixpointIterations, 15 TrivialSequentialCompositions, 8 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 7 ConcurrentYvCompositions, 3 ChoiceCompositions, 34 TotalNumberOfCompositions, 838 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 301, independent: 239, independent conditional: 0, independent unconditional: 239, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 21, unknown conditional: 0, unknown unconditional: 21] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 183, independent: 160, independent conditional: 0, independent unconditional: 160, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 183, independent: 160, independent conditional: 0, independent unconditional: 160, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 23, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , SemanticIndependenceRelation.Query Time [ms]: [ total: 13506, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 647, dependent conditional: 0, dependent unconditional: 647, unknown: 12859, unknown conditional: 0, unknown unconditional: 12859] ], Cache Queries: [ total: 301, independent: 79, independent conditional: 0, independent unconditional: 79, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 198, unknown conditional: 0, unknown unconditional: 198] , Statistics on independence cache: Total cache size (in pairs): 18, Positive cache size: 10, Positive conditional cache size: 0, Positive unconditional cache size: 10, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Unknown cache size: 5, Unknown conditional cache size: 0, Unknown unconditional cache size: 5 - CounterExampleResult [Line: 1675]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1676] 0 pthread_t t1,t2; [L1731] CALL, EXPR 0 my_drv_init() [L1725] 0 return 0; [L1731] RET, EXPR 0 my_drv_init() [L1731] 0 int ret = my_drv_init(); [L1732] COND TRUE 0 ret==0 [L1733] 0 int probe_ret; [L1734] 0 struct my_data data; [L1735] CALL, EXPR 0 my_drv_probe(&data) [L1704] 0 struct device *d = &data->dev; [L1706] 0 data->shared.a = 0 [L1707] 0 data->shared.b = 0 [L1708] 0 int res = __VERIFIER_nondet_int(); [L1709] COND FALSE 0 !(\read(res)) [L1711] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [arg={9:24}, d={9:24}, data={9:0}, data={9:0}, res=0, t1={3:0}, t2={4:0}] [L1689] 1 struct device *dev = (struct device*)arg; [L1690] 1 struct my_data *data; [L1691] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L1691] 1 { const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );} [L1691] 1 { const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );} [L1691] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) [L1693] 1 data->shared.a = 1 VAL [arg={9:24}, arg={9:24}, data={9:0}, dev={9:24}, t1={3:0}, t2={4:0}] [L1712] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [arg={9:24}, arg={9:24}, d={9:24}, data={9:0}, data={9:0}, data={9:0}, dev={9:24}, res=0, t1={3:0}, t2={4:0}] [L1689] 2 struct device *dev = (struct device*)arg; [L1690] 2 struct my_data *data; [L1691] 2 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L1691] 2 { const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );} [L1691] 2 { const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );} [L1691] 2 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) [L1693] 2 data->shared.a = 1 VAL [arg={9:24}, arg={9:24}, data={9:0}, dev={9:24}, t1={3:0}, t2={4:0}] [L1696] EXPR 2 data->shared.b [L1696] 2 int lb = data->shared.b; [L1696] 1 int lb = data->shared.b; [L1699] 1 data->shared.b = lb + 1 [L1701] 1 return 0; [L1713] 0 return 0; [L1735] RET, EXPR 0 my_drv_probe(&data) [L1735] 0 probe_ret = my_drv_probe(&data) [L1699] 2 data->shared.b = lb + 1 [L1701] 2 return 0; [L1736] COND TRUE 0 probe_ret==0 [L1737] CALL 0 my_drv_disconnect(&data) [L1719] 0 void *status; [L1720] 0 \read(t1) VAL [\result={0:0}, arg={9:24}, arg={9:24}, data={9:0}, data={9:0}, data={9:0}, dev={9:24}, lb=0, status={8:0}, t1={3:0}, t2={4:0}] [L1720] FCALL, JOIN 1 pthread_join(t1, &status) VAL [\result={0:0}, arg={9:24}, arg={9:24}, data={9:0}, data={9:0}, data={9:0}, dev={9:24}, lb=0, status={8:0}, t1={3:0}, t2={4:0}] [L1721] 0 \read(t2) VAL [\result={0:0}, arg={9:24}, arg={9:24}, data={9:0}, data={9:0}, data={9:0}, dev={9:24}, lb=0, status={8:0}, t1={3:0}, t2={4:0}] [L1721] FCALL, JOIN 2 pthread_join(t2, &status) VAL [\result={0:0}, arg={9:24}, arg={9:24}, data={9:0}, data={9:0}, data={9:0}, dev={9:24}, lb=0, status={8:0}, t1={3:0}, t2={4:0}] [L1737] RET 0 my_drv_disconnect(&data) [L1738] EXPR 0 data.shared.a [L1738] CALL 0 ldv_assert(data.shared.a==1) [L1675] COND FALSE 0 !(!expression) [L1738] RET 0 ldv_assert(data.shared.a==1) [L1739] EXPR 0 data.shared.b [L1739] CALL 0 ldv_assert(data.shared.b==2) [L1675] COND TRUE 0 !expression [L1675] 0 reach_error() VAL [\old(expression)=0, \result={0:0}, arg={9:24}, arg={9:24}, data={9:0}, dev={9:24}, expression=0, lb=0, t1={3:0}, t2={4:0}] - UnprovableResult [Line: 1675]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1711]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1712]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 52 locations, 6 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: 36.9s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 20.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 294 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 294 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 131 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3324 IncrementalHoareTripleChecker+Invalid, 3455 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 131 mSolverCounterUnsat, 0 mSDtfsCounter, 3324 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 137 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2001occurred in iteration=10, InterpolantAutomatonStates: 102, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 8.8s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 2394 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 RESULT: Ultimate proved your program to be incorrect! [2023-11-17 11:31:04,557 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...