/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/lamport.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.datarace-free-lbe-02cf818-m [2023-11-17 15:04:11,494 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 15:04:11,548 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 15:04:11,567 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 15:04:11,567 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 15:04:11,568 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 15:04:11,568 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 15:04:11,569 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 15:04:11,569 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 15:04:11,569 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 15:04:11,570 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-17 15:04:11,570 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 15:04:11,570 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 15:04:11,570 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 15:04:11,571 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 15:04:11,571 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-17 15:04:11,571 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 15:04:11,572 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-17 15:04:11,572 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 15:04:11,572 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-17 15:04:11,573 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 15:04:11,573 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 15:04:11,574 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 15:04:11,574 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-17 15:04:11,574 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 15:04:11,574 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 15:04:11,575 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 15:04:11,575 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 15:04:11,576 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-17 15:04:11,576 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 15:04:11,576 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 15:04:11,576 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-17 15:04:11,577 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-17 15:04:11,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 15:04:11,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 15:04:11,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 15:04:11,773 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 15:04:11,775 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 15:04:11,776 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/lamport.i [2023-11-17 15:04:12,976 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 15:04:13,170 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 15:04:13,176 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i [2023-11-17 15:04:13,188 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5dde69bd/e85abff37f0441b693fbeab4828bab8a/FLAG938b57886 [2023-11-17 15:04:13,203 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5dde69bd/e85abff37f0441b693fbeab4828bab8a [2023-11-17 15:04:13,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 15:04:13,207 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-17 15:04:13,208 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 15:04:13,208 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 15:04:13,215 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 15:04:13,216 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:04:13" (1/1) ... [2023-11-17 15:04:13,217 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8bc3eb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:04:13, skipping insertion in model container [2023-11-17 15:04:13,217 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:04:13" (1/1) ... [2023-11-17 15:04:13,255 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 15:04:13,384 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-17 15:04:13,485 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[32156,32169] [2023-11-17 15:04:13,499 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[34083,34096] [2023-11-17 15:04:13,505 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 15:04:13,516 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 15:04:13,529 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-17 15:04:13,562 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[32156,32169] [2023-11-17 15:04:13,566 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[34083,34096] [2023-11-17 15:04:13,569 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 15:04:13,589 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 15:04:13,589 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 15:04:13,590 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 15:04:13,596 INFO L206 MainTranslator]: Completed translation [2023-11-17 15:04:13,596 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:04:13 WrapperNode [2023-11-17 15:04:13,597 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 15:04:13,598 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 15:04:13,598 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 15:04:13,598 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 15:04:13,603 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:04:13" (1/1) ... [2023-11-17 15:04:13,615 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:04:13" (1/1) ... [2023-11-17 15:04:13,635 INFO L138 Inliner]: procedures = 171, calls = 83, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 43 [2023-11-17 15:04:13,636 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 15:04:13,636 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 15:04:13,636 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 15:04:13,636 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 15:04:13,644 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:04:13" (1/1) ... [2023-11-17 15:04:13,644 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:04:13" (1/1) ... [2023-11-17 15:04:13,647 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:04:13" (1/1) ... [2023-11-17 15:04:13,648 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:04:13" (1/1) ... [2023-11-17 15:04:13,653 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:04:13" (1/1) ... [2023-11-17 15:04:13,669 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:04:13" (1/1) ... [2023-11-17 15:04:13,671 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:04:13" (1/1) ... [2023-11-17 15:04:13,672 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:04:13" (1/1) ... [2023-11-17 15:04:13,674 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 15:04:13,675 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 15:04:13,675 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 15:04:13,675 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 15:04:13,676 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:04:13" (1/1) ... [2023-11-17 15:04:13,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 15:04:13,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 15:04:13,709 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 15:04:13,732 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 15:04:13,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-17 15:04:13,740 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2023-11-17 15:04:13,740 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2023-11-17 15:04:13,740 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-17 15:04:13,740 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-17 15:04:13,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-17 15:04:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-17 15:04:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 15:04:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 15:04:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 15:04:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-17 15:04:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-17 15:04:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 15:04:13,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 15:04:13,743 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 15:04:13,844 INFO L239 CfgBuilder]: Building ICFG [2023-11-17 15:04:13,846 INFO L265 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 15:04:14,003 INFO L280 CfgBuilder]: Performing block encoding [2023-11-17 15:04:14,013 INFO L302 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 15:04:14,013 INFO L307 CfgBuilder]: Removed 8 assume(true) statements. [2023-11-17 15:04:14,015 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 03:04:14 BoogieIcfgContainer [2023-11-17 15:04:14,015 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 15:04:14,017 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 15:04:14,017 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 15:04:14,020 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 15:04:14,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:04:13" (1/3) ... [2023-11-17 15:04:14,021 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eb81539 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:04:14, skipping insertion in model container [2023-11-17 15:04:14,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:04:13" (2/3) ... [2023-11-17 15:04:14,021 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eb81539 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:04:14, skipping insertion in model container [2023-11-17 15:04:14,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 03:04:14" (3/3) ... [2023-11-17 15:04:14,023 INFO L112 eAbstractionObserver]: Analyzing ICFG lamport.i [2023-11-17 15:04:14,038 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 15:04:14,039 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-17 15:04:14,039 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-17 15:04:14,113 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-17 15:04:14,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 114 places, 131 transitions, 276 flow [2023-11-17 15:04:14,189 INFO L124 PetriNetUnfolderBase]: 24/129 cut-off events. [2023-11-17 15:04:14,189 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-17 15:04:14,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 129 events. 24/129 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 264 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 99. Up to 5 conditions per place. [2023-11-17 15:04:14,200 INFO L82 GeneralOperation]: Start removeDead. Operand has 114 places, 131 transitions, 276 flow [2023-11-17 15:04:14,205 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 119 transitions, 247 flow [2023-11-17 15:04:14,209 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-17 15:04:14,221 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 119 transitions, 247 flow [2023-11-17 15:04:14,224 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 119 transitions, 247 flow [2023-11-17 15:04:14,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 119 transitions, 247 flow [2023-11-17 15:04:14,249 INFO L124 PetriNetUnfolderBase]: 24/119 cut-off events. [2023-11-17 15:04:14,250 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-17 15:04:14,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 119 events. 24/119 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 260 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 99. Up to 5 conditions per place. [2023-11-17 15:04:14,254 INFO L119 LiptonReduction]: Number of co-enabled transitions 5192 [2023-11-17 15:04:16,021 INFO L134 LiptonReduction]: Checked pairs total: 12780 [2023-11-17 15:04:16,022 INFO L136 LiptonReduction]: Total number of compositions: 78 [2023-11-17 15:04:16,046 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-17 15:04:16,052 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;@47811c90, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 15:04:16,053 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-17 15:04:16,055 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-17 15:04:16,056 INFO L124 PetriNetUnfolderBase]: 1/8 cut-off events. [2023-11-17 15:04:16,056 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 15:04:16,056 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:04:16,057 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-17 15:04:16,057 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 15:04:16,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:04:16,068 INFO L85 PathProgramCache]: Analyzing trace with hash 17192227, now seen corresponding path program 1 times [2023-11-17 15:04:16,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:04:16,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201055296] [2023-11-17 15:04:16,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:04:16,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:04:16,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:04:16,276 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 15:04:16,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:04:16,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201055296] [2023-11-17 15:04:16,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201055296] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:04:16,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:04:16,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 15:04:16,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531935513] [2023-11-17 15:04:16,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:04:16,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-17 15:04:16,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:04:16,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-17 15:04:16,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-17 15:04:16,304 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 209 [2023-11-17 15:04:16,306 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 60 transitions, 129 flow. Second operand has 2 states, 2 states have (on average 117.0) internal successors, (234), 2 states have internal predecessors, (234), 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 15:04:16,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:04:16,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 209 [2023-11-17 15:04:16,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:04:16,537 INFO L124 PetriNetUnfolderBase]: 832/1341 cut-off events. [2023-11-17 15:04:16,537 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2023-11-17 15:04:16,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2563 conditions, 1341 events. 832/1341 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 6328 event pairs, 432 based on Foata normal form. 0/917 useless extension candidates. Maximal degree in co-relation 2414. Up to 1184 conditions per place. [2023-11-17 15:04:16,548 INFO L140 encePairwiseOnDemand]: 203/209 looper letters, 39 selfloop transitions, 0 changer transitions 0/54 dead transitions. [2023-11-17 15:04:16,549 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 54 transitions, 195 flow [2023-11-17 15:04:16,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 15:04:16,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-17 15:04:16,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 275 transitions. [2023-11-17 15:04:16,560 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6578947368421053 [2023-11-17 15:04:16,561 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 275 transitions. [2023-11-17 15:04:16,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 275 transitions. [2023-11-17 15:04:16,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:04:16,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 275 transitions. [2023-11-17 15:04:16,567 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 137.5) internal successors, (275), 2 states have internal predecessors, (275), 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 15:04:16,571 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 209.0) internal successors, (627), 3 states have internal predecessors, (627), 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 15:04:16,572 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 209.0) internal successors, (627), 3 states have internal predecessors, (627), 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 15:04:16,573 INFO L175 Difference]: Start difference. First operand has 49 places, 60 transitions, 129 flow. Second operand 2 states and 275 transitions. [2023-11-17 15:04:16,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 54 transitions, 195 flow [2023-11-17 15:04:16,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 54 transitions, 190 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-17 15:04:16,579 INFO L231 Difference]: Finished difference. Result has 47 places, 54 transitions, 112 flow [2023-11-17 15:04:16,580 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=112, PETRI_PLACES=47, PETRI_TRANSITIONS=54} [2023-11-17 15:04:16,584 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -2 predicate places. [2023-11-17 15:04:16,584 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 54 transitions, 112 flow [2023-11-17 15:04:16,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 117.0) internal successors, (234), 2 states have internal predecessors, (234), 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 15:04:16,585 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:04:16,585 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:04:16,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-17 15:04:16,585 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 15:04:16,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:04:16,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1204696215, now seen corresponding path program 1 times [2023-11-17 15:04:16,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:04:16,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787644392] [2023-11-17 15:04:16,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:04:16,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:04:16,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:04:16,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 15:04:16,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:04:16,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787644392] [2023-11-17 15:04:16,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787644392] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:04:16,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:04:16,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 15:04:16,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87393308] [2023-11-17 15:04:16,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:04:16,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 15:04:16,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:04:16,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 15:04:16,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 15:04:16,673 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 209 [2023-11-17 15:04:16,674 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 54 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 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 15:04:16,674 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:04:16,674 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 209 [2023-11-17 15:04:16,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:04:16,843 INFO L124 PetriNetUnfolderBase]: 929/1510 cut-off events. [2023-11-17 15:04:16,843 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-17 15:04:16,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2888 conditions, 1510 events. 929/1510 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 7293 event pairs, 341 based on Foata normal form. 0/1042 useless extension candidates. Maximal degree in co-relation 2885. Up to 990 conditions per place. [2023-11-17 15:04:16,852 INFO L140 encePairwiseOnDemand]: 202/209 looper letters, 56 selfloop transitions, 5 changer transitions 1/75 dead transitions. [2023-11-17 15:04:16,852 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 75 transitions, 279 flow [2023-11-17 15:04:16,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 15:04:16,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 15:04:16,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 388 transitions. [2023-11-17 15:04:16,855 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6188197767145136 [2023-11-17 15:04:16,855 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 388 transitions. [2023-11-17 15:04:16,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 388 transitions. [2023-11-17 15:04:16,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:04:16,855 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 388 transitions. [2023-11-17 15:04:16,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 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 15:04:16,859 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 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 15:04:16,859 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 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 15:04:16,859 INFO L175 Difference]: Start difference. First operand has 47 places, 54 transitions, 112 flow. Second operand 3 states and 388 transitions. [2023-11-17 15:04:16,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 75 transitions, 279 flow [2023-11-17 15:04:16,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 75 transitions, 279 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-17 15:04:16,862 INFO L231 Difference]: Finished difference. Result has 51 places, 56 transitions, 144 flow [2023-11-17 15:04:16,862 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=144, PETRI_PLACES=51, PETRI_TRANSITIONS=56} [2023-11-17 15:04:16,862 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 2 predicate places. [2023-11-17 15:04:16,863 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 56 transitions, 144 flow [2023-11-17 15:04:16,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 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 15:04:16,863 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:04:16,863 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:04:16,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-17 15:04:16,864 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 15:04:16,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:04:16,864 INFO L85 PathProgramCache]: Analyzing trace with hash 683759877, now seen corresponding path program 1 times [2023-11-17 15:04:16,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:04:16,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783215800] [2023-11-17 15:04:16,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:04:16,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:04:16,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:04:16,916 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 15:04:16,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:04:16,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783215800] [2023-11-17 15:04:16,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783215800] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:04:16,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:04:16,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 15:04:16,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921053764] [2023-11-17 15:04:16,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:04:16,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 15:04:16,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:04:16,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 15:04:16,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 15:04:16,935 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 209 [2023-11-17 15:04:16,936 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 56 transitions, 144 flow. Second operand has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 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 15:04:16,936 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:04:16,936 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 209 [2023-11-17 15:04:16,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:04:17,106 INFO L124 PetriNetUnfolderBase]: 865/1414 cut-off events. [2023-11-17 15:04:17,106 INFO L125 PetriNetUnfolderBase]: For 194/194 co-relation queries the response was YES. [2023-11-17 15:04:17,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2910 conditions, 1414 events. 865/1414 cut-off events. For 194/194 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 6756 event pairs, 345 based on Foata normal form. 36/1133 useless extension candidates. Maximal degree in co-relation 2905. Up to 987 conditions per place. [2023-11-17 15:04:17,113 INFO L140 encePairwiseOnDemand]: 203/209 looper letters, 52 selfloop transitions, 4 changer transitions 4/73 dead transitions. [2023-11-17 15:04:17,114 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 73 transitions, 299 flow [2023-11-17 15:04:17,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 15:04:17,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 15:04:17,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 386 transitions. [2023-11-17 15:04:17,115 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6156299840510366 [2023-11-17 15:04:17,115 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 386 transitions. [2023-11-17 15:04:17,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 386 transitions. [2023-11-17 15:04:17,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:04:17,116 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 386 transitions. [2023-11-17 15:04:17,117 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 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 15:04:17,120 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 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 15:04:17,120 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 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 15:04:17,121 INFO L175 Difference]: Start difference. First operand has 51 places, 56 transitions, 144 flow. Second operand 3 states and 386 transitions. [2023-11-17 15:04:17,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 73 transitions, 299 flow [2023-11-17 15:04:17,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 73 transitions, 289 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-17 15:04:17,127 INFO L231 Difference]: Finished difference. Result has 52 places, 56 transitions, 150 flow [2023-11-17 15:04:17,127 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=150, PETRI_PLACES=52, PETRI_TRANSITIONS=56} [2023-11-17 15:04:17,128 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 3 predicate places. [2023-11-17 15:04:17,128 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 56 transitions, 150 flow [2023-11-17 15:04:17,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 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 15:04:17,129 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:04:17,129 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:04:17,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-17 15:04:17,129 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 15:04:17,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:04:17,130 INFO L85 PathProgramCache]: Analyzing trace with hash 493402847, now seen corresponding path program 1 times [2023-11-17 15:04:17,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:04:17,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707336662] [2023-11-17 15:04:17,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:04:17,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:04:17,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:04:17,253 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 15:04:17,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:04:17,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707336662] [2023-11-17 15:04:17,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707336662] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:04:17,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:04:17,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 15:04:17,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634559650] [2023-11-17 15:04:17,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:04:17,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 15:04:17,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:04:17,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 15:04:17,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 15:04:17,259 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 209 [2023-11-17 15:04:17,260 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 56 transitions, 150 flow. Second operand has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 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 15:04:17,260 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:04:17,260 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 209 [2023-11-17 15:04:17,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:04:17,526 INFO L124 PetriNetUnfolderBase]: 1686/2697 cut-off events. [2023-11-17 15:04:17,526 INFO L125 PetriNetUnfolderBase]: For 702/702 co-relation queries the response was YES. [2023-11-17 15:04:17,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5690 conditions, 2697 events. 1686/2697 cut-off events. For 702/702 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 13484 event pairs, 462 based on Foata normal form. 0/2220 useless extension candidates. Maximal degree in co-relation 5684. Up to 1442 conditions per place. [2023-11-17 15:04:17,537 INFO L140 encePairwiseOnDemand]: 204/209 looper letters, 71 selfloop transitions, 4 changer transitions 12/96 dead transitions. [2023-11-17 15:04:17,537 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 96 transitions, 434 flow [2023-11-17 15:04:17,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 15:04:17,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 15:04:17,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 378 transitions. [2023-11-17 15:04:17,539 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6028708133971292 [2023-11-17 15:04:17,539 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 378 transitions. [2023-11-17 15:04:17,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 378 transitions. [2023-11-17 15:04:17,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:04:17,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 378 transitions. [2023-11-17 15:04:17,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 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 15:04:17,542 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 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 15:04:17,542 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 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 15:04:17,542 INFO L175 Difference]: Start difference. First operand has 52 places, 56 transitions, 150 flow. Second operand 3 states and 378 transitions. [2023-11-17 15:04:17,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 96 transitions, 434 flow [2023-11-17 15:04:17,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 96 transitions, 426 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-17 15:04:17,546 INFO L231 Difference]: Finished difference. Result has 55 places, 60 transitions, 180 flow [2023-11-17 15:04:17,547 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=180, PETRI_PLACES=55, PETRI_TRANSITIONS=60} [2023-11-17 15:04:17,547 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 6 predicate places. [2023-11-17 15:04:17,547 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 60 transitions, 180 flow [2023-11-17 15:04:17,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 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 15:04:17,548 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:04:17,548 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:04:17,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-17 15:04:17,548 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 15:04:17,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:04:17,549 INFO L85 PathProgramCache]: Analyzing trace with hash 872775249, now seen corresponding path program 2 times [2023-11-17 15:04:17,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:04:17,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793358853] [2023-11-17 15:04:17,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:04:17,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:04:17,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:04:17,595 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 15:04:17,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:04:17,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793358853] [2023-11-17 15:04:17,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793358853] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:04:17,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:04:17,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-17 15:04:17,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750454048] [2023-11-17 15:04:17,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:04:17,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 15:04:17,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:04:17,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 15:04:17,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-17 15:04:17,598 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 209 [2023-11-17 15:04:17,599 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 60 transitions, 180 flow. Second operand has 4 states, 4 states have (on average 112.25) internal successors, (449), 4 states have internal predecessors, (449), 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 15:04:17,599 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:04:17,599 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 209 [2023-11-17 15:04:17,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:04:18,239 INFO L124 PetriNetUnfolderBase]: 4804/7778 cut-off events. [2023-11-17 15:04:18,239 INFO L125 PetriNetUnfolderBase]: For 1463/1469 co-relation queries the response was YES. [2023-11-17 15:04:18,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16557 conditions, 7778 events. 4804/7778 cut-off events. For 1463/1469 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 46564 event pairs, 769 based on Foata normal form. 60/6569 useless extension candidates. Maximal degree in co-relation 16550. Up to 2300 conditions per place. [2023-11-17 15:04:18,288 INFO L140 encePairwiseOnDemand]: 205/209 looper letters, 143 selfloop transitions, 6 changer transitions 1/164 dead transitions. [2023-11-17 15:04:18,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 164 transitions, 764 flow [2023-11-17 15:04:18,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 15:04:18,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-17 15:04:18,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 682 transitions. [2023-11-17 15:04:18,291 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6526315789473685 [2023-11-17 15:04:18,291 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 682 transitions. [2023-11-17 15:04:18,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 682 transitions. [2023-11-17 15:04:18,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:04:18,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 682 transitions. [2023-11-17 15:04:18,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 136.4) internal successors, (682), 5 states have internal predecessors, (682), 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 15:04:18,295 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 209.0) internal successors, (1254), 6 states have internal predecessors, (1254), 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 15:04:18,296 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 209.0) internal successors, (1254), 6 states have internal predecessors, (1254), 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 15:04:18,296 INFO L175 Difference]: Start difference. First operand has 55 places, 60 transitions, 180 flow. Second operand 5 states and 682 transitions. [2023-11-17 15:04:18,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 164 transitions, 764 flow [2023-11-17 15:04:18,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 164 transitions, 750 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-17 15:04:18,308 INFO L231 Difference]: Finished difference. Result has 61 places, 66 transitions, 224 flow [2023-11-17 15:04:18,309 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=224, PETRI_PLACES=61, PETRI_TRANSITIONS=66} [2023-11-17 15:04:18,310 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 12 predicate places. [2023-11-17 15:04:18,311 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 66 transitions, 224 flow [2023-11-17 15:04:18,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 112.25) internal successors, (449), 4 states have internal predecessors, (449), 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 15:04:18,311 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:04:18,311 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:04:18,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-17 15:04:18,312 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 15:04:18,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:04:18,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1855023753, now seen corresponding path program 3 times [2023-11-17 15:04:18,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:04:18,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246268427] [2023-11-17 15:04:18,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:04:18,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:04:18,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:04:18,380 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 15:04:18,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:04:18,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246268427] [2023-11-17 15:04:18,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246268427] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:04:18,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:04:18,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-17 15:04:18,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724586512] [2023-11-17 15:04:18,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:04:18,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 15:04:18,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:04:18,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 15:04:18,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-17 15:04:18,387 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 209 [2023-11-17 15:04:18,387 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 66 transitions, 224 flow. Second operand has 4 states, 4 states have (on average 93.75) internal successors, (375), 4 states have internal predecessors, (375), 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 15:04:18,387 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:04:18,388 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 209 [2023-11-17 15:04:18,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:04:19,033 INFO L124 PetriNetUnfolderBase]: 5269/8528 cut-off events. [2023-11-17 15:04:19,033 INFO L125 PetriNetUnfolderBase]: For 2403/2439 co-relation queries the response was YES. [2023-11-17 15:04:19,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18898 conditions, 8528 events. 5269/8528 cut-off events. For 2403/2439 co-relation queries the response was YES. Maximal size of possible extension queue 342. Compared 53003 event pairs, 1465 based on Foata normal form. 268/7611 useless extension candidates. Maximal degree in co-relation 18888. Up to 4341 conditions per place. [2023-11-17 15:04:19,070 INFO L140 encePairwiseOnDemand]: 195/209 looper letters, 85 selfloop transitions, 16 changer transitions 16/132 dead transitions. [2023-11-17 15:04:19,071 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 132 transitions, 635 flow [2023-11-17 15:04:19,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 15:04:19,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-17 15:04:19,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 569 transitions. [2023-11-17 15:04:19,073 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5444976076555024 [2023-11-17 15:04:19,073 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 569 transitions. [2023-11-17 15:04:19,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 569 transitions. [2023-11-17 15:04:19,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:04:19,073 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 569 transitions. [2023-11-17 15:04:19,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 113.8) internal successors, (569), 5 states have internal predecessors, (569), 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 15:04:19,076 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 209.0) internal successors, (1254), 6 states have internal predecessors, (1254), 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 15:04:19,077 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 209.0) internal successors, (1254), 6 states have internal predecessors, (1254), 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 15:04:19,077 INFO L175 Difference]: Start difference. First operand has 61 places, 66 transitions, 224 flow. Second operand 5 states and 569 transitions. [2023-11-17 15:04:19,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 132 transitions, 635 flow [2023-11-17 15:04:19,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 132 transitions, 635 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-17 15:04:19,084 INFO L231 Difference]: Finished difference. Result has 68 places, 78 transitions, 351 flow [2023-11-17 15:04:19,084 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=351, PETRI_PLACES=68, PETRI_TRANSITIONS=78} [2023-11-17 15:04:19,084 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 19 predicate places. [2023-11-17 15:04:19,085 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 78 transitions, 351 flow [2023-11-17 15:04:19,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.75) internal successors, (375), 4 states have internal predecessors, (375), 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 15:04:19,085 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:04:19,085 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:04:19,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-17 15:04:19,085 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 15:04:19,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:04:19,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1883152495, now seen corresponding path program 4 times [2023-11-17 15:04:19,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:04:19,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383260091] [2023-11-17 15:04:19,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:04:19,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:04:19,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:04:19,123 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 15:04:19,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:04:19,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383260091] [2023-11-17 15:04:19,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383260091] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:04:19,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:04:19,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-17 15:04:19,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306249534] [2023-11-17 15:04:19,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:04:19,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 15:04:19,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:04:19,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 15:04:19,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-17 15:04:19,126 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 209 [2023-11-17 15:04:19,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 78 transitions, 351 flow. Second operand has 4 states, 4 states have (on average 112.25) internal successors, (449), 4 states have internal predecessors, (449), 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 15:04:19,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:04:19,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 209 [2023-11-17 15:04:19,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:04:20,168 INFO L124 PetriNetUnfolderBase]: 7311/12212 cut-off events. [2023-11-17 15:04:20,168 INFO L125 PetriNetUnfolderBase]: For 8265/8935 co-relation queries the response was YES. [2023-11-17 15:04:20,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31942 conditions, 12212 events. 7311/12212 cut-off events. For 8265/8935 co-relation queries the response was YES. Maximal size of possible extension queue 388. Compared 82150 event pairs, 1424 based on Foata normal form. 370/11474 useless extension candidates. Maximal degree in co-relation 31928. Up to 3446 conditions per place. [2023-11-17 15:04:20,355 INFO L140 encePairwiseOnDemand]: 205/209 looper letters, 160 selfloop transitions, 10 changer transitions 20/208 dead transitions. [2023-11-17 15:04:20,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 208 transitions, 1295 flow [2023-11-17 15:04:20,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 15:04:20,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-17 15:04:20,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 686 transitions. [2023-11-17 15:04:20,358 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6564593301435406 [2023-11-17 15:04:20,358 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 686 transitions. [2023-11-17 15:04:20,358 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 686 transitions. [2023-11-17 15:04:20,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:04:20,358 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 686 transitions. [2023-11-17 15:04:20,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 137.2) internal successors, (686), 5 states have internal predecessors, (686), 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 15:04:20,362 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 209.0) internal successors, (1254), 6 states have internal predecessors, (1254), 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 15:04:20,362 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 209.0) internal successors, (1254), 6 states have internal predecessors, (1254), 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 15:04:20,362 INFO L175 Difference]: Start difference. First operand has 68 places, 78 transitions, 351 flow. Second operand 5 states and 686 transitions. [2023-11-17 15:04:20,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 208 transitions, 1295 flow [2023-11-17 15:04:20,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 208 transitions, 1273 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-11-17 15:04:20,380 INFO L231 Difference]: Finished difference. Result has 75 places, 85 transitions, 424 flow [2023-11-17 15:04:20,380 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=424, PETRI_PLACES=75, PETRI_TRANSITIONS=85} [2023-11-17 15:04:20,381 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 26 predicate places. [2023-11-17 15:04:20,381 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 85 transitions, 424 flow [2023-11-17 15:04:20,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 112.25) internal successors, (449), 4 states have internal predecessors, (449), 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 15:04:20,381 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:04:20,382 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:04:20,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-17 15:04:20,382 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 15:04:20,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:04:20,382 INFO L85 PathProgramCache]: Analyzing trace with hash -456006883, now seen corresponding path program 1 times [2023-11-17 15:04:20,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:04:20,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738848495] [2023-11-17 15:04:20,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:04:20,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:04:20,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:04:20,424 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 15:04:20,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:04:20,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738848495] [2023-11-17 15:04:20,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738848495] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:04:20,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:04:20,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-17 15:04:20,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131457989] [2023-11-17 15:04:20,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:04:20,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 15:04:20,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:04:20,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 15:04:20,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-17 15:04:20,427 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 209 [2023-11-17 15:04:20,428 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 85 transitions, 424 flow. Second operand has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 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 15:04:20,428 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:04:20,428 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 209 [2023-11-17 15:04:20,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:04:21,340 INFO L124 PetriNetUnfolderBase]: 5934/10099 cut-off events. [2023-11-17 15:04:21,341 INFO L125 PetriNetUnfolderBase]: For 7214/7959 co-relation queries the response was YES. [2023-11-17 15:04:21,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25719 conditions, 10099 events. 5934/10099 cut-off events. For 7214/7959 co-relation queries the response was YES. Maximal size of possible extension queue 318. Compared 67388 event pairs, 2074 based on Foata normal form. 418/9481 useless extension candidates. Maximal degree in co-relation 25702. Up to 6116 conditions per place. [2023-11-17 15:04:21,379 INFO L140 encePairwiseOnDemand]: 202/209 looper letters, 78 selfloop transitions, 9 changer transitions 8/128 dead transitions. [2023-11-17 15:04:21,379 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 128 transitions, 763 flow [2023-11-17 15:04:21,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 15:04:21,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-17 15:04:21,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 607 transitions. [2023-11-17 15:04:21,381 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5808612440191387 [2023-11-17 15:04:21,381 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 607 transitions. [2023-11-17 15:04:21,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 607 transitions. [2023-11-17 15:04:21,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:04:21,382 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 607 transitions. [2023-11-17 15:04:21,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 121.4) internal successors, (607), 5 states have internal predecessors, (607), 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 15:04:21,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 209.0) internal successors, (1254), 6 states have internal predecessors, (1254), 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 15:04:21,385 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 209.0) internal successors, (1254), 6 states have internal predecessors, (1254), 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 15:04:21,385 INFO L175 Difference]: Start difference. First operand has 75 places, 85 transitions, 424 flow. Second operand 5 states and 607 transitions. [2023-11-17 15:04:21,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 128 transitions, 763 flow [2023-11-17 15:04:21,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 128 transitions, 755 flow, removed 4 selfloop flow, removed 0 redundant places. [2023-11-17 15:04:21,399 INFO L231 Difference]: Finished difference. Result has 82 places, 89 transitions, 470 flow [2023-11-17 15:04:21,399 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=470, PETRI_PLACES=82, PETRI_TRANSITIONS=89} [2023-11-17 15:04:21,400 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 33 predicate places. [2023-11-17 15:04:21,400 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 89 transitions, 470 flow [2023-11-17 15:04:21,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 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 15:04:21,400 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:04:21,401 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:04:21,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-17 15:04:21,401 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 15:04:21,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:04:21,401 INFO L85 PathProgramCache]: Analyzing trace with hash -265518908, now seen corresponding path program 1 times [2023-11-17 15:04:21,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:04:21,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771666641] [2023-11-17 15:04:21,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:04:21,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:04:21,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:04:21,443 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 15:04:21,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:04:21,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771666641] [2023-11-17 15:04:21,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771666641] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:04:21,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:04:21,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-17 15:04:21,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902470990] [2023-11-17 15:04:21,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:04:21,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 15:04:21,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:04:21,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 15:04:21,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-17 15:04:21,446 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 209 [2023-11-17 15:04:21,446 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 89 transitions, 470 flow. Second operand has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 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 15:04:21,447 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:04:21,447 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 209 [2023-11-17 15:04:21,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:04:22,362 INFO L124 PetriNetUnfolderBase]: 5310/9581 cut-off events. [2023-11-17 15:04:22,362 INFO L125 PetriNetUnfolderBase]: For 9246/9835 co-relation queries the response was YES. [2023-11-17 15:04:22,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26441 conditions, 9581 events. 5310/9581 cut-off events. For 9246/9835 co-relation queries the response was YES. Maximal size of possible extension queue 278. Compared 65380 event pairs, 1907 based on Foata normal form. 206/8930 useless extension candidates. Maximal degree in co-relation 26420. Up to 5871 conditions per place. [2023-11-17 15:04:22,395 INFO L140 encePairwiseOnDemand]: 202/209 looper letters, 81 selfloop transitions, 10 changer transitions 12/134 dead transitions. [2023-11-17 15:04:22,395 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 134 transitions, 837 flow [2023-11-17 15:04:22,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 15:04:22,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-17 15:04:22,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 610 transitions. [2023-11-17 15:04:22,398 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.583732057416268 [2023-11-17 15:04:22,398 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 610 transitions. [2023-11-17 15:04:22,398 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 610 transitions. [2023-11-17 15:04:22,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:04:22,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 610 transitions. [2023-11-17 15:04:22,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 122.0) internal successors, (610), 5 states have internal predecessors, (610), 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 15:04:22,401 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 209.0) internal successors, (1254), 6 states have internal predecessors, (1254), 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 15:04:22,402 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 209.0) internal successors, (1254), 6 states have internal predecessors, (1254), 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 15:04:22,402 INFO L175 Difference]: Start difference. First operand has 82 places, 89 transitions, 470 flow. Second operand 5 states and 610 transitions. [2023-11-17 15:04:22,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 134 transitions, 837 flow [2023-11-17 15:04:22,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 134 transitions, 835 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-11-17 15:04:22,419 INFO L231 Difference]: Finished difference. Result has 89 places, 89 transitions, 479 flow [2023-11-17 15:04:22,419 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=468, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=479, PETRI_PLACES=89, PETRI_TRANSITIONS=89} [2023-11-17 15:04:22,420 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 40 predicate places. [2023-11-17 15:04:22,420 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 89 transitions, 479 flow [2023-11-17 15:04:22,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 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 15:04:22,422 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:04:22,422 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:04:22,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-17 15:04:22,423 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 15:04:22,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:04:22,424 INFO L85 PathProgramCache]: Analyzing trace with hash 438775194, now seen corresponding path program 1 times [2023-11-17 15:04:22,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:04:22,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406736649] [2023-11-17 15:04:22,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:04:22,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:04:22,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:04:22,473 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 15:04:22,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:04:22,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406736649] [2023-11-17 15:04:22,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406736649] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:04:22,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:04:22,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-17 15:04:22,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620207290] [2023-11-17 15:04:22,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:04:22,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 15:04:22,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:04:22,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 15:04:22,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-17 15:04:22,480 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 209 [2023-11-17 15:04:22,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 89 transitions, 479 flow. Second operand has 4 states, 4 states have (on average 113.25) internal successors, (453), 4 states have internal predecessors, (453), 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 15:04:22,482 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:04:22,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 209 [2023-11-17 15:04:22,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:04:23,017 INFO L124 PetriNetUnfolderBase]: 3712/6496 cut-off events. [2023-11-17 15:04:23,017 INFO L125 PetriNetUnfolderBase]: For 8179/8552 co-relation queries the response was YES. [2023-11-17 15:04:23,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19984 conditions, 6496 events. 3712/6496 cut-off events. For 8179/8552 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 39348 event pairs, 1229 based on Foata normal form. 180/6180 useless extension candidates. Maximal degree in co-relation 19959. Up to 3265 conditions per place. [2023-11-17 15:04:23,042 INFO L140 encePairwiseOnDemand]: 205/209 looper letters, 75 selfloop transitions, 6 changer transitions 52/152 dead transitions. [2023-11-17 15:04:23,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 152 transitions, 1077 flow [2023-11-17 15:04:23,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 15:04:23,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-17 15:04:23,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 641 transitions. [2023-11-17 15:04:23,044 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6133971291866028 [2023-11-17 15:04:23,044 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 641 transitions. [2023-11-17 15:04:23,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 641 transitions. [2023-11-17 15:04:23,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:04:23,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 641 transitions. [2023-11-17 15:04:23,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 128.2) internal successors, (641), 5 states have internal predecessors, (641), 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 15:04:23,048 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 209.0) internal successors, (1254), 6 states have internal predecessors, (1254), 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 15:04:23,048 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 209.0) internal successors, (1254), 6 states have internal predecessors, (1254), 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 15:04:23,048 INFO L175 Difference]: Start difference. First operand has 89 places, 89 transitions, 479 flow. Second operand 5 states and 641 transitions. [2023-11-17 15:04:23,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 152 transitions, 1077 flow [2023-11-17 15:04:23,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 152 transitions, 1075 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-11-17 15:04:23,073 INFO L231 Difference]: Finished difference. Result has 95 places, 86 transitions, 474 flow [2023-11-17 15:04:23,074 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=477, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=474, PETRI_PLACES=95, PETRI_TRANSITIONS=86} [2023-11-17 15:04:23,074 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 46 predicate places. [2023-11-17 15:04:23,074 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 86 transitions, 474 flow [2023-11-17 15:04:23,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 113.25) internal successors, (453), 4 states have internal predecessors, (453), 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 15:04:23,075 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:04:23,075 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:04:23,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-17 15:04:23,075 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-11-17 15:04:23,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:04:23,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1223539294, now seen corresponding path program 2 times [2023-11-17 15:04:23,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:04:23,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327998651] [2023-11-17 15:04:23,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:04:23,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:04:23,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:04:23,116 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 15:04:23,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:04:23,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327998651] [2023-11-17 15:04:23,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327998651] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:04:23,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:04:23,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-17 15:04:23,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713383287] [2023-11-17 15:04:23,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:04:23,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 15:04:23,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:04:23,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 15:04:23,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-17 15:04:23,119 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 209 [2023-11-17 15:04:23,119 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 86 transitions, 474 flow. Second operand has 4 states, 4 states have (on average 113.25) internal successors, (453), 4 states have internal predecessors, (453), 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 15:04:23,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:04:23,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 209 [2023-11-17 15:04:23,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:04:23,466 INFO L124 PetriNetUnfolderBase]: 1160/2209 cut-off events. [2023-11-17 15:04:23,466 INFO L125 PetriNetUnfolderBase]: For 3604/3785 co-relation queries the response was YES. [2023-11-17 15:04:23,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7022 conditions, 2209 events. 1160/2209 cut-off events. For 3604/3785 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 12124 event pairs, 288 based on Foata normal form. 162/2231 useless extension candidates. Maximal degree in co-relation 6994. Up to 694 conditions per place. [2023-11-17 15:04:23,476 INFO L140 encePairwiseOnDemand]: 205/209 looper letters, 0 selfloop transitions, 0 changer transitions 115/115 dead transitions. [2023-11-17 15:04:23,477 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 115 transitions, 787 flow [2023-11-17 15:04:23,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 15:04:23,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-17 15:04:23,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 625 transitions. [2023-11-17 15:04:23,479 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5980861244019139 [2023-11-17 15:04:23,479 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 625 transitions. [2023-11-17 15:04:23,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 625 transitions. [2023-11-17 15:04:23,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:04:23,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 625 transitions. [2023-11-17 15:04:23,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 125.0) internal successors, (625), 5 states have internal predecessors, (625), 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 15:04:23,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 209.0) internal successors, (1254), 6 states have internal predecessors, (1254), 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 15:04:23,485 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 209.0) internal successors, (1254), 6 states have internal predecessors, (1254), 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 15:04:23,485 INFO L175 Difference]: Start difference. First operand has 95 places, 86 transitions, 474 flow. Second operand 5 states and 625 transitions. [2023-11-17 15:04:23,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 115 transitions, 787 flow [2023-11-17 15:04:23,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 115 transitions, 713 flow, removed 16 selfloop flow, removed 10 redundant places. [2023-11-17 15:04:23,499 INFO L231 Difference]: Finished difference. Result has 78 places, 0 transitions, 0 flow [2023-11-17 15:04:23,499 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=78, PETRI_TRANSITIONS=0} [2023-11-17 15:04:23,499 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 29 predicate places. [2023-11-17 15:04:23,499 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 0 transitions, 0 flow [2023-11-17 15:04:23,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 113.25) internal successors, (453), 4 states have internal predecessors, (453), 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 15:04:23,502 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2023-11-17 15:04:23,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2023-11-17 15:04:23,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2023-11-17 15:04:23,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2023-11-17 15:04:23,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2023-11-17 15:04:23,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2023-11-17 15:04:23,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-17 15:04:23,504 INFO L445 BasicCegarLoop]: Path program histogram: [4, 2, 1, 1, 1, 1, 1] [2023-11-17 15:04:23,508 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-17 15:04:23,508 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-17 15:04:23,512 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 03:04:23 BasicIcfg [2023-11-17 15:04:23,513 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-17 15:04:23,513 INFO L158 Benchmark]: Toolchain (without parser) took 10306.35ms. Allocated memory was 267.4MB in the beginning and 1.7GB in the end (delta: 1.4GB). Free memory was 212.2MB in the beginning and 1.3GB in the end (delta: -1.1GB). Peak memory consumption was 349.8MB. Max. memory is 8.0GB. [2023-11-17 15:04:23,513 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 189.8MB. Free memory is still 137.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-11-17 15:04:23,513 INFO L158 Benchmark]: CACSL2BoogieTranslator took 389.17ms. Allocated memory is still 267.4MB. Free memory was 212.2MB in the beginning and 191.2MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-11-17 15:04:23,515 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.10ms. Allocated memory is still 267.4MB. Free memory was 191.2MB in the beginning and 189.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-11-17 15:04:23,516 INFO L158 Benchmark]: Boogie Preprocessor took 38.30ms. Allocated memory is still 267.4MB. Free memory was 189.1MB in the beginning and 187.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-11-17 15:04:23,516 INFO L158 Benchmark]: RCFGBuilder took 340.20ms. Allocated memory is still 267.4MB. Free memory was 187.6MB in the beginning and 171.8MB in the end (delta: 15.8MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-11-17 15:04:23,516 INFO L158 Benchmark]: TraceAbstraction took 9495.54ms. Allocated memory was 267.4MB in the beginning and 1.7GB in the end (delta: 1.4GB). Free memory was 171.3MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 308.9MB. Max. memory is 8.0GB. [2023-11-17 15:04:23,518 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 189.8MB. Free memory is still 137.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 389.17ms. Allocated memory is still 267.4MB. Free memory was 212.2MB in the beginning and 191.2MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 38.10ms. Allocated memory is still 267.4MB. Free memory was 191.2MB in the beginning and 189.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 38.30ms. Allocated memory is still 267.4MB. Free memory was 189.1MB in the beginning and 187.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 340.20ms. Allocated memory is still 267.4MB. Free memory was 187.6MB in the beginning and 171.8MB in the end (delta: 15.8MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 9495.54ms. Allocated memory was 267.4MB in the beginning and 1.7GB in the end (delta: 1.4GB). Free memory was 171.3MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 308.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 102 PlacesBefore, 49 PlacesAfterwards, 119 TransitionsBefore, 60 TransitionsAfterwards, 5192 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 18 ConcurrentYvCompositions, 6 ChoiceCompositions, 78 TotalNumberOfCompositions, 12780 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6628, independent: 6336, independent conditional: 0, independent unconditional: 6336, dependent: 292, dependent conditional: 0, dependent unconditional: 292, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3235, independent: 3175, independent conditional: 0, independent unconditional: 3175, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3235, independent: 3107, independent conditional: 0, independent unconditional: 3107, dependent: 128, dependent conditional: 0, dependent unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 128, independent: 68, independent conditional: 0, independent unconditional: 68, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 140, independent: 54, independent conditional: 0, independent unconditional: 54, dependent: 86, dependent conditional: 0, dependent unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6628, independent: 3161, independent conditional: 0, independent unconditional: 3161, dependent: 232, dependent conditional: 0, dependent unconditional: 232, unknown: 3235, unknown conditional: 0, unknown unconditional: 3235] , Statistics on independence cache: Total cache size (in pairs): 639, Positive cache size: 598, Positive conditional cache size: 0, Positive unconditional cache size: 598, Negative cache size: 41, Negative conditional cache size: 0, Negative unconditional cache size: 41, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 834]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 764]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 176 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: 9.4s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 6.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 502 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 502 mSDsluCounter, 74 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1664 IncrementalHoareTripleChecker+Invalid, 1684 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 50 mSDtfsCounter, 1664 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=479occurred in iteration=9, InterpolantAutomatonStates: 46, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 196 NumberOfCodeBlocks, 196 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 185 ConstructedInterpolants, 0 QuantifiedInterpolants, 313 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-17 15:04:23,536 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...