/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/goblint-regression/28-race_reach_87-lists_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.datarace-free-lbe-02cf818-m [2023-11-17 15:40:24,107 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 15:40:24,194 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 15:40:24,227 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 15:40:24,228 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 15:40:24,229 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 15:40:24,229 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 15:40:24,230 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 15:40:24,230 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 15:40:24,234 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 15:40:24,235 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-17 15:40:24,235 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 15:40:24,235 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 15:40:24,236 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 15:40:24,237 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 15:40:24,237 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-17 15:40:24,237 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 15:40:24,237 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-17 15:40:24,238 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 15:40:24,238 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-17 15:40:24,238 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 15:40:24,239 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 15:40:24,239 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 15:40:24,239 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-17 15:40:24,240 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 15:40:24,240 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 15:40:24,240 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 15:40:24,240 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 15:40:24,240 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-17 15:40:24,241 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 15:40:24,242 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 15:40:24,242 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-17 15:40:24,242 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-17 15:40:24,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 15:40:24,520 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 15:40:24,522 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 15:40:24,523 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 15:40:24,523 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 15:40:24,524 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_87-lists_racefree.i [2023-11-17 15:40:25,761 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 15:40:26,097 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 15:40:26,098 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_87-lists_racefree.i [2023-11-17 15:40:26,119 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34899cded/c5a7eba05af14bd3bb4205bb9d60f207/FLAG67d1e6166 [2023-11-17 15:40:26,138 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34899cded/c5a7eba05af14bd3bb4205bb9d60f207 [2023-11-17 15:40:26,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 15:40:26,142 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-17 15:40:26,144 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 15:40:26,144 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 15:40:26,149 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 15:40:26,149 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:40:26" (1/1) ... [2023-11-17 15:40:26,150 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68f474e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:40:26, skipping insertion in model container [2023-11-17 15:40:26,151 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:40:26" (1/1) ... [2023-11-17 15:40:26,199 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 15:40:26,616 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_87-lists_racefree.i[47038,47051] [2023-11-17 15:40:26,676 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 15:40:26,739 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 15:40:26,771 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_87-lists_racefree.i[47038,47051] [2023-11-17 15:40:26,783 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 15:40:26,832 INFO L206 MainTranslator]: Completed translation [2023-11-17 15:40:26,833 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:40:26 WrapperNode [2023-11-17 15:40:26,833 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 15:40:26,834 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 15:40:26,834 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 15:40:26,834 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 15:40:26,840 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:40:26" (1/1) ... [2023-11-17 15:40:26,867 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:40:26" (1/1) ... [2023-11-17 15:40:26,892 INFO L138 Inliner]: procedures = 279, calls = 68, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 258 [2023-11-17 15:40:26,893 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 15:40:26,894 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 15:40:26,894 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 15:40:26,894 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 15:40:26,902 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:40:26" (1/1) ... [2023-11-17 15:40:26,902 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:40:26" (1/1) ... [2023-11-17 15:40:26,907 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:40:26" (1/1) ... [2023-11-17 15:40:26,907 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:40:26" (1/1) ... [2023-11-17 15:40:26,917 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:40:26" (1/1) ... [2023-11-17 15:40:26,922 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:40:26" (1/1) ... [2023-11-17 15:40:26,924 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:40:26" (1/1) ... [2023-11-17 15:40:26,926 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:40:26" (1/1) ... [2023-11-17 15:40:26,930 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 15:40:26,931 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 15:40:26,931 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 15:40:26,931 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 15:40:26,932 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:40:26" (1/1) ... [2023-11-17 15:40:26,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 15:40:26,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 15:40:26,990 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 15:40:27,018 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 15:40:27,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 15:40:27,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-17 15:40:27,027 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-11-17 15:40:27,027 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-11-17 15:40:27,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 15:40:27,028 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-17 15:40:27,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-17 15:40:27,028 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-11-17 15:40:27,029 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-11-17 15:40:27,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-17 15:40:27,029 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-17 15:40:27,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-17 15:40:27,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 15:40:27,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-17 15:40:27,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-17 15:40:27,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 15:40:27,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 15:40:27,033 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 15:40:27,246 INFO L239 CfgBuilder]: Building ICFG [2023-11-17 15:40:27,248 INFO L265 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 15:40:27,655 INFO L280 CfgBuilder]: Performing block encoding [2023-11-17 15:40:27,706 INFO L302 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 15:40:27,706 INFO L307 CfgBuilder]: Removed 16 assume(true) statements. [2023-11-17 15:40:27,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 03:40:27 BoogieIcfgContainer [2023-11-17 15:40:27,708 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 15:40:27,710 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 15:40:27,710 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 15:40:27,712 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 15:40:27,713 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:40:26" (1/3) ... [2023-11-17 15:40:27,713 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39d20d19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:40:27, skipping insertion in model container [2023-11-17 15:40:27,713 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:40:26" (2/3) ... [2023-11-17 15:40:27,714 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39d20d19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:40:27, skipping insertion in model container [2023-11-17 15:40:27,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 03:40:27" (3/3) ... [2023-11-17 15:40:27,715 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_87-lists_racefree.i [2023-11-17 15:40:27,756 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 15:40:27,757 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-17 15:40:27,757 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-17 15:40:27,845 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-17 15:40:27,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 243 places, 265 transitions, 550 flow [2023-11-17 15:40:28,065 INFO L124 PetriNetUnfolderBase]: 57/493 cut-off events. [2023-11-17 15:40:28,066 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-17 15:40:28,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 510 conditions, 493 events. 57/493 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1955 event pairs, 0 based on Foata normal form. 0/426 useless extension candidates. Maximal degree in co-relation 245. Up to 8 conditions per place. [2023-11-17 15:40:28,081 INFO L82 GeneralOperation]: Start removeDead. Operand has 243 places, 265 transitions, 550 flow [2023-11-17 15:40:28,096 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 243 places, 265 transitions, 550 flow [2023-11-17 15:40:28,100 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-17 15:40:28,121 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 243 places, 265 transitions, 550 flow [2023-11-17 15:40:28,124 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 243 places, 265 transitions, 550 flow [2023-11-17 15:40:28,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 243 places, 265 transitions, 550 flow [2023-11-17 15:40:28,209 INFO L124 PetriNetUnfolderBase]: 57/493 cut-off events. [2023-11-17 15:40:28,210 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-17 15:40:28,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 510 conditions, 493 events. 57/493 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1955 event pairs, 0 based on Foata normal form. 0/426 useless extension candidates. Maximal degree in co-relation 245. Up to 8 conditions per place. [2023-11-17 15:40:28,233 INFO L119 LiptonReduction]: Number of co-enabled transitions 23826 [2023-11-17 15:41:14,356 INFO L134 LiptonReduction]: Checked pairs total: 31511 [2023-11-17 15:41:14,356 INFO L136 LiptonReduction]: Total number of compositions: 233 [2023-11-17 15:41:14,370 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-17 15:41:14,375 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;@2ca8fefd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 15:41:14,376 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-17 15:41:14,379 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-17 15:41:14,380 INFO L124 PetriNetUnfolderBase]: 1/23 cut-off events. [2023-11-17 15:41:14,380 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 15:41:14,380 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:41:14,381 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-17 15:41:14,381 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-17 15:41:14,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:41:14,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1713432269, now seen corresponding path program 1 times [2023-11-17 15:41:14,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:41:14,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57302580] [2023-11-17 15:41:14,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:41:14,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:41:14,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:41:14,647 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-17 15:41:14,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:41:14,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57302580] [2023-11-17 15:41:14,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57302580] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:41:14,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:41:14,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 15:41:14,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074166419] [2023-11-17 15:41:14,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:41:14,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 15:41:14,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:41:14,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 15:41:14,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 15:41:14,694 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 498 [2023-11-17 15:41:14,700 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 69 transitions, 158 flow. Second operand has 3 states, 3 states have (on average 218.66666666666666) internal successors, (656), 3 states have internal predecessors, (656), 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 15:41:14,701 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:41:14,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 498 [2023-11-17 15:41:14,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:41:15,430 INFO L124 PetriNetUnfolderBase]: 3185/5461 cut-off events. [2023-11-17 15:41:15,430 INFO L125 PetriNetUnfolderBase]: For 119/119 co-relation queries the response was YES. [2023-11-17 15:41:15,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10519 conditions, 5461 events. 3185/5461 cut-off events. For 119/119 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 31657 event pairs, 2940 based on Foata normal form. 184/4739 useless extension candidates. Maximal degree in co-relation 9474. Up to 4972 conditions per place. [2023-11-17 15:41:15,455 INFO L140 encePairwiseOnDemand]: 484/498 looper letters, 46 selfloop transitions, 2 changer transitions 2/59 dead transitions. [2023-11-17 15:41:15,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 59 transitions, 238 flow [2023-11-17 15:41:15,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 15:41:15,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 15:41:15,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 713 transitions. [2023-11-17 15:41:15,469 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47724230254350736 [2023-11-17 15:41:15,470 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 713 transitions. [2023-11-17 15:41:15,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 713 transitions. [2023-11-17 15:41:15,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:41:15,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 713 transitions. [2023-11-17 15:41:15,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 237.66666666666666) internal successors, (713), 3 states have internal predecessors, (713), 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 15:41:15,493 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 498.0) internal successors, (1992), 4 states have internal predecessors, (1992), 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 15:41:15,494 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 498.0) internal successors, (1992), 4 states have internal predecessors, (1992), 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 15:41:15,496 INFO L175 Difference]: Start difference. First operand has 56 places, 69 transitions, 158 flow. Second operand 3 states and 713 transitions. [2023-11-17 15:41:15,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 59 transitions, 238 flow [2023-11-17 15:41:15,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 59 transitions, 238 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-17 15:41:15,506 INFO L231 Difference]: Finished difference. Result has 59 places, 57 transitions, 138 flow [2023-11-17 15:41:15,507 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=498, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=138, PETRI_PLACES=59, PETRI_TRANSITIONS=57} [2023-11-17 15:41:15,511 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 3 predicate places. [2023-11-17 15:41:15,511 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 57 transitions, 138 flow [2023-11-17 15:41:15,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 218.66666666666666) internal successors, (656), 3 states have internal predecessors, (656), 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 15:41:15,511 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:41:15,512 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-11-17 15:41:15,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-17 15:41:15,513 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-17 15:41:15,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:41:15,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1795204140, now seen corresponding path program 1 times [2023-11-17 15:41:15,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:41:15,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674297509] [2023-11-17 15:41:15,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:41:15,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:41:15,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:41:15,669 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-17 15:41:15,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:41:15,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674297509] [2023-11-17 15:41:15,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674297509] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 15:41:15,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440383407] [2023-11-17 15:41:15,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:41:15,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 15:41:15,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 15:41:15,673 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 15:41:15,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-17 15:41:15,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:41:15,796 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-17 15:41:15,799 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 15:41:15,829 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-17 15:41:15,829 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 15:41:15,844 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-17 15:41:15,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440383407] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 15:41:15,845 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 15:41:15,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-17 15:41:15,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250793736] [2023-11-17 15:41:15,846 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 15:41:15,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-17 15:41:15,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:41:15,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-17 15:41:15,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-17 15:41:15,849 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 498 [2023-11-17 15:41:15,851 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 57 transitions, 138 flow. Second operand has 7 states, 7 states have (on average 218.57142857142858) internal successors, (1530), 7 states have internal predecessors, (1530), 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 15:41:15,851 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:41:15,851 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 498 [2023-11-17 15:41:15,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:41:16,571 INFO L124 PetriNetUnfolderBase]: 3149/5392 cut-off events. [2023-11-17 15:41:16,572 INFO L125 PetriNetUnfolderBase]: For 99/99 co-relation queries the response was YES. [2023-11-17 15:41:16,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10389 conditions, 5392 events. 3149/5392 cut-off events. For 99/99 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 31065 event pairs, 2924 based on Foata normal form. 0/4486 useless extension candidates. Maximal degree in co-relation 10376. Up to 4918 conditions per place. [2023-11-17 15:41:16,593 INFO L140 encePairwiseOnDemand]: 495/498 looper letters, 46 selfloop transitions, 5 changer transitions 0/60 dead transitions. [2023-11-17 15:41:16,593 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 60 transitions, 252 flow [2023-11-17 15:41:16,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-17 15:41:16,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-17 15:41:16,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1356 transitions. [2023-11-17 15:41:16,597 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4538152610441767 [2023-11-17 15:41:16,598 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1356 transitions. [2023-11-17 15:41:16,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1356 transitions. [2023-11-17 15:41:16,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:41:16,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1356 transitions. [2023-11-17 15:41:16,602 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 226.0) internal successors, (1356), 6 states have internal predecessors, (1356), 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 15:41:16,608 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 498.0) internal successors, (3486), 7 states have internal predecessors, (3486), 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 15:41:16,610 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 498.0) internal successors, (3486), 7 states have internal predecessors, (3486), 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 15:41:16,613 INFO L175 Difference]: Start difference. First operand has 59 places, 57 transitions, 138 flow. Second operand 6 states and 1356 transitions. [2023-11-17 15:41:16,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 60 transitions, 252 flow [2023-11-17 15:41:16,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 60 transitions, 248 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-17 15:41:16,621 INFO L231 Difference]: Finished difference. Result has 66 places, 60 transitions, 170 flow [2023-11-17 15:41:16,622 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=498, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=170, PETRI_PLACES=66, PETRI_TRANSITIONS=60} [2023-11-17 15:41:16,622 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 10 predicate places. [2023-11-17 15:41:16,623 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 60 transitions, 170 flow [2023-11-17 15:41:16,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 218.57142857142858) internal successors, (1530), 7 states have internal predecessors, (1530), 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 15:41:16,624 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:41:16,624 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1, 1, 1] [2023-11-17 15:41:16,636 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-17 15:41:16,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 15:41:16,836 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-17 15:41:16,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:41:16,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1687777421, now seen corresponding path program 2 times [2023-11-17 15:41:16,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:41:16,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859121842] [2023-11-17 15:41:16,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:41:16,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:41:16,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:41:17,102 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-17 15:41:17,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:41:17,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859121842] [2023-11-17 15:41:17,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859121842] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 15:41:17,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515008725] [2023-11-17 15:41:17,103 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-17 15:41:17,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 15:41:17,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 15:41:17,105 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 15:41:17,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-17 15:41:17,267 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-17 15:41:17,267 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 15:41:17,270 INFO L262 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-17 15:41:17,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 15:41:17,288 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-17 15:41:17,288 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 15:41:17,348 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-17 15:41:17,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515008725] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 15:41:17,348 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 15:41:17,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-11-17 15:41:17,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195831492] [2023-11-17 15:41:17,349 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 15:41:17,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-17 15:41:17,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:41:17,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-17 15:41:17,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-17 15:41:17,352 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 498 [2023-11-17 15:41:17,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 60 transitions, 170 flow. Second operand has 13 states, 13 states have (on average 218.30769230769232) internal successors, (2838), 13 states have internal predecessors, (2838), 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 15:41:17,355 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:41:17,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 498 [2023-11-17 15:41:17,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:41:18,033 INFO L124 PetriNetUnfolderBase]: 3149/5398 cut-off events. [2023-11-17 15:41:18,034 INFO L125 PetriNetUnfolderBase]: For 119/119 co-relation queries the response was YES. [2023-11-17 15:41:18,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10426 conditions, 5398 events. 3149/5398 cut-off events. For 119/119 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 31065 event pairs, 2924 based on Foata normal form. 6/4499 useless extension candidates. Maximal degree in co-relation 10367. Up to 4918 conditions per place. [2023-11-17 15:41:18,060 INFO L140 encePairwiseOnDemand]: 495/498 looper letters, 46 selfloop transitions, 11 changer transitions 0/66 dead transitions. [2023-11-17 15:41:18,060 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 66 transitions, 320 flow [2023-11-17 15:41:18,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-17 15:41:18,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-17 15:41:18,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2667 transitions. [2023-11-17 15:41:18,068 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.446285140562249 [2023-11-17 15:41:18,068 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2667 transitions. [2023-11-17 15:41:18,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2667 transitions. [2023-11-17 15:41:18,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:41:18,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2667 transitions. [2023-11-17 15:41:18,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 222.25) internal successors, (2667), 12 states have internal predecessors, (2667), 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 15:41:18,108 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 498.0) internal successors, (6474), 13 states have internal predecessors, (6474), 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 15:41:18,111 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 498.0) internal successors, (6474), 13 states have internal predecessors, (6474), 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 15:41:18,111 INFO L175 Difference]: Start difference. First operand has 66 places, 60 transitions, 170 flow. Second operand 12 states and 2667 transitions. [2023-11-17 15:41:18,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 66 transitions, 320 flow [2023-11-17 15:41:18,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 66 transitions, 306 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-11-17 15:41:18,115 INFO L231 Difference]: Finished difference. Result has 82 places, 66 transitions, 240 flow [2023-11-17 15:41:18,115 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=498, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=240, PETRI_PLACES=82, PETRI_TRANSITIONS=66} [2023-11-17 15:41:18,116 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 26 predicate places. [2023-11-17 15:41:18,116 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 66 transitions, 240 flow [2023-11-17 15:41:18,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 218.30769230769232) internal successors, (2838), 13 states have internal predecessors, (2838), 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 15:41:18,118 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:41:18,118 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 1, 1, 1, 1, 1] [2023-11-17 15:41:18,127 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-17 15:41:18,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-17 15:41:18,325 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-17 15:41:18,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:41:18,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1421419731, now seen corresponding path program 3 times [2023-11-17 15:41:18,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:41:18,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178286302] [2023-11-17 15:41:18,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:41:18,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:41:18,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:41:18,802 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-17 15:41:18,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:41:18,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178286302] [2023-11-17 15:41:18,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178286302] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 15:41:18,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222689854] [2023-11-17 15:41:18,806 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-17 15:41:18,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 15:41:18,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 15:41:18,809 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 15:41:18,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-17 15:43:58,547 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-11-17 15:43:58,547 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 15:43:58,605 INFO L262 TraceCheckSpWp]: Trace formula consists of 645 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-17 15:43:58,607 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 15:43:58,638 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-17 15:43:58,638 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 15:43:58,875 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-17 15:43:58,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222689854] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 15:43:58,875 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 15:43:58,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2023-11-17 15:43:58,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251430600] [2023-11-17 15:43:58,876 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 15:43:58,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-17 15:43:58,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:43:58,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-17 15:43:58,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2023-11-17 15:43:58,880 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 498 [2023-11-17 15:43:58,884 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 66 transitions, 240 flow. Second operand has 25 states, 25 states have (on average 218.16) internal successors, (5454), 25 states have internal predecessors, (5454), 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 15:43:58,884 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:43:58,884 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 498 [2023-11-17 15:43:58,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:43:59,862 INFO L124 PetriNetUnfolderBase]: 3149/5410 cut-off events. [2023-11-17 15:43:59,862 INFO L125 PetriNetUnfolderBase]: For 562/562 co-relation queries the response was YES. [2023-11-17 15:43:59,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10510 conditions, 5410 events. 3149/5410 cut-off events. For 562/562 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 31052 event pairs, 2924 based on Foata normal form. 12/4517 useless extension candidates. Maximal degree in co-relation 10373. Up to 4918 conditions per place. [2023-11-17 15:43:59,892 INFO L140 encePairwiseOnDemand]: 495/498 looper letters, 46 selfloop transitions, 23 changer transitions 0/78 dead transitions. [2023-11-17 15:43:59,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 78 transitions, 474 flow [2023-11-17 15:43:59,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-17 15:43:59,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-11-17 15:43:59,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 5289 transitions. [2023-11-17 15:43:59,906 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44252008032128515 [2023-11-17 15:43:59,909 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 5289 transitions. [2023-11-17 15:43:59,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 5289 transitions. [2023-11-17 15:43:59,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:43:59,914 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 5289 transitions. [2023-11-17 15:43:59,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 220.375) internal successors, (5289), 24 states have internal predecessors, (5289), 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 15:43:59,966 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 498.0) internal successors, (12450), 25 states have internal predecessors, (12450), 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 15:43:59,968 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 498.0) internal successors, (12450), 25 states have internal predecessors, (12450), 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 15:43:59,969 INFO L175 Difference]: Start difference. First operand has 82 places, 66 transitions, 240 flow. Second operand 24 states and 5289 transitions. [2023-11-17 15:43:59,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 78 transitions, 474 flow [2023-11-17 15:43:59,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 78 transitions, 402 flow, removed 31 selfloop flow, removed 5 redundant places. [2023-11-17 15:43:59,977 INFO L231 Difference]: Finished difference. Result has 112 places, 78 transitions, 360 flow [2023-11-17 15:43:59,977 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=498, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=360, PETRI_PLACES=112, PETRI_TRANSITIONS=78} [2023-11-17 15:43:59,978 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 56 predicate places. [2023-11-17 15:43:59,979 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 78 transitions, 360 flow [2023-11-17 15:43:59,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 218.16) internal successors, (5454), 25 states have internal predecessors, (5454), 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 15:43:59,982 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:43:59,982 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 2, 1, 1, 1, 1, 1] [2023-11-17 15:44:00,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-17 15:44:00,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 15:44:00,205 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-17 15:44:00,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:44:00,206 INFO L85 PathProgramCache]: Analyzing trace with hash -563853203, now seen corresponding path program 4 times [2023-11-17 15:44:00,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:44:00,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372078243] [2023-11-17 15:44:00,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:44:00,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:44:00,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:44:01,443 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-17 15:44:01,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:44:01,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372078243] [2023-11-17 15:44:01,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372078243] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 15:44:01,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684469986] [2023-11-17 15:44:01,444 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-17 15:44:01,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 15:44:01,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 15:44:01,449 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 15:44:01,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-17 15:44:01,881 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-17 15:44:01,881 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 15:44:01,888 INFO L262 TraceCheckSpWp]: Trace formula consists of 1257 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-17 15:44:01,891 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 15:44:01,954 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-17 15:44:01,954 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 15:44:02,702 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-17 15:44:02,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684469986] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 15:44:02,702 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 15:44:02,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 48 [2023-11-17 15:44:02,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570480507] [2023-11-17 15:44:02,703 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 15:44:02,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2023-11-17 15:44:02,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:44:02,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-11-17 15:44:02,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2023-11-17 15:44:02,712 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 498 [2023-11-17 15:44:02,721 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 78 transitions, 360 flow. Second operand has 49 states, 49 states have (on average 218.08163265306123) internal successors, (10686), 49 states have internal predecessors, (10686), 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 15:44:02,721 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:44:02,721 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 498 [2023-11-17 15:44:02,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:44:03,904 INFO L124 PetriNetUnfolderBase]: 3149/5434 cut-off events. [2023-11-17 15:44:03,905 INFO L125 PetriNetUnfolderBase]: For 5332/5332 co-relation queries the response was YES. [2023-11-17 15:44:03,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10654 conditions, 5434 events. 3149/5434 cut-off events. For 5332/5332 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 31084 event pairs, 2924 based on Foata normal form. 24/4553 useless extension candidates. Maximal degree in co-relation 10385. Up to 4918 conditions per place. [2023-11-17 15:44:03,933 INFO L140 encePairwiseOnDemand]: 495/498 looper letters, 46 selfloop transitions, 47 changer transitions 0/102 dead transitions. [2023-11-17 15:44:03,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 102 transitions, 738 flow [2023-11-17 15:44:03,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-11-17 15:44:03,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2023-11-17 15:44:03,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 10533 transitions. [2023-11-17 15:44:03,960 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4406375502008032 [2023-11-17 15:44:03,961 INFO L72 ComplementDD]: Start complementDD. Operand 48 states and 10533 transitions. [2023-11-17 15:44:03,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 10533 transitions. [2023-11-17 15:44:03,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:44:03,967 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 48 states and 10533 transitions. [2023-11-17 15:44:03,995 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 49 states, 48 states have (on average 219.4375) internal successors, (10533), 48 states have internal predecessors, (10533), 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 15:44:04,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 49 states, 49 states have (on average 498.0) internal successors, (24402), 49 states have internal predecessors, (24402), 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 15:44:04,041 INFO L81 ComplementDD]: Finished complementDD. Result has 49 states, 49 states have (on average 498.0) internal successors, (24402), 49 states have internal predecessors, (24402), 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 15:44:04,041 INFO L175 Difference]: Start difference. First operand has 112 places, 78 transitions, 360 flow. Second operand 48 states and 10533 transitions. [2023-11-17 15:44:04,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 102 transitions, 738 flow [2023-11-17 15:44:04,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 102 transitions, 594 flow, removed 61 selfloop flow, removed 11 redundant places. [2023-11-17 15:44:04,053 INFO L231 Difference]: Finished difference. Result has 172 places, 102 transitions, 600 flow [2023-11-17 15:44:04,053 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=498, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=48, PETRI_FLOW=600, PETRI_PLACES=172, PETRI_TRANSITIONS=102} [2023-11-17 15:44:04,054 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 116 predicate places. [2023-11-17 15:44:04,054 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 102 transitions, 600 flow [2023-11-17 15:44:04,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 218.08163265306123) internal successors, (10686), 49 states have internal predecessors, (10686), 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 15:44:04,057 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:44:04,057 INFO L208 CegarLoopForPetriNet]: trace histogram [46, 2, 1, 1, 1, 1, 1] [2023-11-17 15:44:04,072 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-17 15:44:04,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 15:44:04,266 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-17 15:44:04,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:44:04,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1099006701, now seen corresponding path program 5 times [2023-11-17 15:44:04,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:44:04,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679918135] [2023-11-17 15:44:04,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:44:04,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:44:04,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:44:07,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1083 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-17 15:44:07,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:44:07,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679918135] [2023-11-17 15:44:07,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679918135] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 15:44:07,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507620309] [2023-11-17 15:44:07,792 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-17 15:44:07,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 15:44:07,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 15:44:07,797 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 15:44:07,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process Received shutdown request... [2023-11-17 15:49:55,138 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-11-17 15:49:55,139 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-11-17 15:49:56,200 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 [2023-11-17 15:49:56,339 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forcibly destroying the process [2023-11-17 15:49:56,354 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 137 [2023-11-17 15:49:56,355 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-17 15:49:56,355 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-17 15:49:56,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48] total 48 [2023-11-17 15:49:56,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922161618] [2023-11-17 15:49:56,355 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-17 15:49:56,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2023-11-17 15:49:56,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:49:56,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-11-17 15:49:56,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2023-11-17 15:49:56,361 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 498 [2023-11-17 15:49:56,368 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 102 transitions, 600 flow. Second operand has 49 states, 49 states have (on average 218.0408163265306) internal successors, (10684), 49 states have internal predecessors, (10684), 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 15:49:56,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:49:56,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 498 [2023-11-17 15:49:56,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:49:56,377 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2023-11-17 15:49:56,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-17 15:49:56,378 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-11-17 15:49:56,379 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2023-11-17 15:49:56,379 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-11-17 15:49:56,380 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2023-11-17 15:49:56,380 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1] [2023-11-17 15:49:56,384 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-17 15:49:56,384 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-17 15:49:56,387 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 03:49:56 BasicIcfg [2023-11-17 15:49:56,387 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-17 15:49:56,387 INFO L158 Benchmark]: Toolchain (without parser) took 570245.93ms. Allocated memory was 181.4MB in the beginning and 833.6MB in the end (delta: 652.2MB). Free memory was 129.4MB in the beginning and 535.7MB in the end (delta: -406.3MB). Peak memory consumption was 247.0MB. Max. memory is 8.0GB. [2023-11-17 15:49:56,387 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 181.4MB. Free memory is still 135.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-11-17 15:49:56,388 INFO L158 Benchmark]: CACSL2BoogieTranslator took 688.94ms. Allocated memory is still 181.4MB. Free memory was 129.4MB in the beginning and 93.8MB in the end (delta: 35.6MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. [2023-11-17 15:49:56,388 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.83ms. Allocated memory is still 181.4MB. Free memory was 93.8MB in the beginning and 90.6MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-11-17 15:49:56,388 INFO L158 Benchmark]: Boogie Preprocessor took 36.91ms. Allocated memory is still 181.4MB. Free memory was 90.6MB in the beginning and 88.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-11-17 15:49:56,388 INFO L158 Benchmark]: RCFGBuilder took 776.66ms. Allocated memory is still 181.4MB. Free memory was 88.0MB in the beginning and 59.7MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2023-11-17 15:49:56,391 INFO L158 Benchmark]: TraceAbstraction took 568677.32ms. Allocated memory was 181.4MB in the beginning and 833.6MB in the end (delta: 652.2MB). Free memory was 59.2MB in the beginning and 535.7MB in the end (delta: -476.6MB). Peak memory consumption was 176.7MB. Max. memory is 8.0GB. [2023-11-17 15:49:56,392 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 181.4MB. Free memory is still 135.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 688.94ms. Allocated memory is still 181.4MB. Free memory was 129.4MB in the beginning and 93.8MB in the end (delta: 35.6MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 58.83ms. Allocated memory is still 181.4MB. Free memory was 93.8MB in the beginning and 90.6MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 36.91ms. Allocated memory is still 181.4MB. Free memory was 90.6MB in the beginning and 88.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 776.66ms. Allocated memory is still 181.4MB. Free memory was 88.0MB in the beginning and 59.7MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * TraceAbstraction took 568677.32ms. Allocated memory was 181.4MB in the beginning and 833.6MB in the end (delta: 652.2MB). Free memory was 59.2MB in the beginning and 535.7MB in the end (delta: -476.6MB). Peak memory consumption was 176.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 46.2s, 243 PlacesBefore, 56 PlacesAfterwards, 265 TransitionsBefore, 69 TransitionsAfterwards, 23826 CoEnabledTransitionPairs, 6 FixpointIterations, 45 TrivialSequentialCompositions, 146 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 31 ConcurrentYvCompositions, 9 ChoiceCompositions, 233 TotalNumberOfCompositions, 31511 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 20859, independent: 20561, independent conditional: 0, independent unconditional: 20561, dependent: 259, dependent conditional: 0, dependent unconditional: 259, unknown: 39, unknown conditional: 0, unknown unconditional: 39] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 15553, independent: 15434, independent conditional: 0, independent unconditional: 15434, dependent: 102, dependent conditional: 0, dependent unconditional: 102, unknown: 17, unknown conditional: 0, unknown unconditional: 17] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 15553, independent: 15356, independent conditional: 0, independent unconditional: 15356, dependent: 197, dependent conditional: 0, dependent unconditional: 197, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 197, independent: 78, independent conditional: 0, independent unconditional: 78, dependent: 102, dependent conditional: 0, dependent unconditional: 102, unknown: 17, unknown conditional: 0, unknown unconditional: 17] , SemanticIndependenceRelation.Query Time [ms]: [ total: 39330, independent: 100, independent conditional: 0, independent unconditional: 100, dependent: 3533, dependent conditional: 0, dependent unconditional: 3533, unknown: 35696, unknown conditional: 0, unknown unconditional: 35696] ], Cache Queries: [ total: 20859, independent: 5127, independent conditional: 0, independent unconditional: 5127, dependent: 157, dependent conditional: 0, dependent unconditional: 157, unknown: 15575, unknown conditional: 0, unknown unconditional: 15575] , Statistics on independence cache: Total cache size (in pairs): 764, Positive cache size: 722, Positive conditional cache size: 0, Positive unconditional cache size: 722, Negative cache size: 42, Negative conditional cache size: 0, Negative unconditional cache size: 42, Unknown cache size: 9, Unknown conditional cache size: 0, Unknown unconditional cache size: 9 - TimeoutResultAtElement [Line: 1051]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 999]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1052]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 377 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 568.5s, OverallIterations: 6, TraceHistogramMax: 46, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 4.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 46.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1224 IncrementalHoareTripleChecker+Invalid, 1229 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 0 mSDtfsCounter, 1224 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 217 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=600occurred in iteration=5, InterpolantAutomatonStates: 93, 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: 0.2s SsaConstructionTime, 160.0s SatisfiabilityAnalysisTime, 6.4s InterpolantComputationTime, 190 NumberOfCodeBlocks, 190 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 241 ConstructedInterpolants, 0 QuantifiedInterpolants, 583 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2427 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 14 InterpolantComputations, 1 PerfectInterpolantSequences, 28/2066 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown