/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true -i ../../../trunk/examples/svcomp/pthread-wmm/safe022_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 14:57:19,798 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 14:57:19,888 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-12-09 14:57:19,908 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 14:57:19,909 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 14:57:19,910 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 14:57:19,910 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 14:57:19,910 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 14:57:19,911 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 14:57:19,916 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 14:57:19,916 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 14:57:19,916 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 14:57:19,917 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 14:57:19,917 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 14:57:19,917 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 14:57:19,917 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 14:57:19,917 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 14:57:19,918 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 14:57:19,918 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 14:57:19,918 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 14:57:19,918 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 14:57:19,921 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 14:57:19,921 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 14:57:19,921 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 14:57:19,921 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 14:57:19,921 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 14:57:19,922 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 14:57:19,922 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 14:57:19,922 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 14:57:19,922 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 14:57:19,923 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 14:57:19,923 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 14:57:19,923 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 14:57:19,924 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 14:57:20,117 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 14:57:20,143 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 14:57:20,146 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 14:57:20,147 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 14:57:20,147 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 14:57:20,148 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe022_tso.i [2023-12-09 14:57:21,309 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 14:57:21,565 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 14:57:21,565 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe022_tso.i [2023-12-09 14:57:21,582 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f123525b/dda40514b929409dbf80b4e4aa6a7db5/FLAG54f20c1ca [2023-12-09 14:57:21,595 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f123525b/dda40514b929409dbf80b4e4aa6a7db5 [2023-12-09 14:57:21,597 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 14:57:21,598 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 14:57:21,600 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 14:57:21,600 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 14:57:21,604 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 14:57:21,605 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:57:21" (1/1) ... [2023-12-09 14:57:21,606 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1592adb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:21, skipping insertion in model container [2023-12-09 14:57:21,606 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:57:21" (1/1) ... [2023-12-09 14:57:21,642 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 14:57:21,782 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe022_tso.i[945,958] [2023-12-09 14:57:21,909 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 14:57:21,919 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 14:57:21,933 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe022_tso.i[945,958] [2023-12-09 14:57:21,989 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 14:57:22,022 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 14:57:22,023 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 14:57:22,029 INFO L206 MainTranslator]: Completed translation [2023-12-09 14:57:22,032 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:22 WrapperNode [2023-12-09 14:57:22,032 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 14:57:22,033 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 14:57:22,033 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 14:57:22,033 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 14:57:22,040 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:22" (1/1) ... [2023-12-09 14:57:22,066 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:22" (1/1) ... [2023-12-09 14:57:22,087 INFO L138 Inliner]: procedures = 175, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2023-12-09 14:57:22,088 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 14:57:22,089 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 14:57:22,089 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 14:57:22,089 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 14:57:22,096 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:22" (1/1) ... [2023-12-09 14:57:22,096 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:22" (1/1) ... [2023-12-09 14:57:22,102 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:22" (1/1) ... [2023-12-09 14:57:22,102 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:22" (1/1) ... [2023-12-09 14:57:22,114 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:22" (1/1) ... [2023-12-09 14:57:22,116 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:22" (1/1) ... [2023-12-09 14:57:22,117 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:22" (1/1) ... [2023-12-09 14:57:22,118 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:22" (1/1) ... [2023-12-09 14:57:22,120 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 14:57:22,121 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 14:57:22,121 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 14:57:22,121 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 14:57:22,122 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:22" (1/1) ... [2023-12-09 14:57:22,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 14:57:22,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 14:57:22,186 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-09 14:57:22,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-09 14:57:22,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 14:57:22,217 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-09 14:57:22,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 14:57:22,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 14:57:22,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 14:57:22,219 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-12-09 14:57:22,219 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-12-09 14:57:22,219 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-12-09 14:57:22,219 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-12-09 14:57:22,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 14:57:22,219 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-09 14:57:22,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 14:57:22,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 14:57:22,221 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-09 14:57:22,374 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 14:57:22,376 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 14:57:22,534 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 14:57:22,553 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 14:57:22,554 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-09 14:57:22,555 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:57:22 BoogieIcfgContainer [2023-12-09 14:57:22,555 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 14:57:22,557 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 14:57:22,557 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 14:57:22,560 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 14:57:22,560 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 02:57:21" (1/3) ... [2023-12-09 14:57:22,561 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fbb9c5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:57:22, skipping insertion in model container [2023-12-09 14:57:22,561 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:22" (2/3) ... [2023-12-09 14:57:22,562 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fbb9c5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:57:22, skipping insertion in model container [2023-12-09 14:57:22,562 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:57:22" (3/3) ... [2023-12-09 14:57:22,563 INFO L112 eAbstractionObserver]: Analyzing ICFG safe022_tso.i [2023-12-09 14:57:22,579 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 14:57:22,579 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 14:57:22,579 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 14:57:22,631 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-09 14:57:22,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 74 transitions, 156 flow [2023-12-09 14:57:22,693 INFO L124 PetriNetUnfolderBase]: 2/72 cut-off events. [2023-12-09 14:57:22,693 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-09 14:57:22,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2023-12-09 14:57:22,700 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 74 transitions, 156 flow [2023-12-09 14:57:22,704 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 59 transitions, 124 flow [2023-12-09 14:57:22,711 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 14:57:22,723 INFO L362 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@79b3efa1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 14:57:22,724 INFO L363 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-12-09 14:57:22,744 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 14:57:22,744 INFO L124 PetriNetUnfolderBase]: 1/58 cut-off events. [2023-12-09 14:57:22,744 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-09 14:57:22,744 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:22,745 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:57:22,745 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 14:57:22,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:22,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1758881318, now seen corresponding path program 1 times [2023-12-09 14:57:22,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:22,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303770676] [2023-12-09 14:57:22,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:22,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:22,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:23,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:57:23,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:23,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303770676] [2023-12-09 14:57:23,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303770676] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:23,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:23,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:57:23,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982605873] [2023-12-09 14:57:23,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:23,463 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:57:23,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:23,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:57:23,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:57:23,495 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 74 [2023-12-09 14:57:23,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 59 transitions, 124 flow. Second operand has 7 states, 7 states have (on average 57.42857142857143) internal successors, (402), 7 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:23,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:23,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 74 [2023-12-09 14:57:23,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:23,710 INFO L124 PetriNetUnfolderBase]: 11/95 cut-off events. [2023-12-09 14:57:23,711 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-12-09 14:57:23,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 95 events. 11/95 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 173 event pairs, 5 based on Foata normal form. 5/98 useless extension candidates. Maximal degree in co-relation 113. Up to 18 conditions per place. [2023-12-09 14:57:23,713 INFO L140 encePairwiseOnDemand]: 67/74 looper letters, 10 selfloop transitions, 2 changer transitions 14/71 dead transitions. [2023-12-09 14:57:23,713 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 71 transitions, 198 flow [2023-12-09 14:57:23,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-09 14:57:23,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-12-09 14:57:23,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 533 transitions. [2023-12-09 14:57:23,727 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8003003003003003 [2023-12-09 14:57:23,728 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 533 transitions. [2023-12-09 14:57:23,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 533 transitions. [2023-12-09 14:57:23,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:23,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 533 transitions. [2023-12-09 14:57:23,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 59.22222222222222) internal successors, (533), 9 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:23,749 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:23,750 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:23,753 INFO L308 CegarLoopForPetriNet]: 65 programPoint places, 8 predicate places. [2023-12-09 14:57:23,753 INFO L500 AbstractCegarLoop]: Abstraction has has 73 places, 71 transitions, 198 flow [2023-12-09 14:57:23,754 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 57.42857142857143) internal successors, (402), 7 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:23,754 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:23,754 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:57:23,754 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 14:57:23,754 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 14:57:23,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:23,755 INFO L85 PathProgramCache]: Analyzing trace with hash -2063827525, now seen corresponding path program 1 times [2023-12-09 14:57:23,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:23,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625985649] [2023-12-09 14:57:23,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:23,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:23,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:24,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:57:24,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:24,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625985649] [2023-12-09 14:57:24,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625985649] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:24,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:24,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:57:24,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298517484] [2023-12-09 14:57:24,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:24,075 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:57:24,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:24,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:57:24,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:57:24,077 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 74 [2023-12-09 14:57:24,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 71 transitions, 198 flow. Second operand has 7 states, 7 states have (on average 57.57142857142857) internal successors, (403), 7 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:24,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:24,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 74 [2023-12-09 14:57:24,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:24,355 INFO L124 PetriNetUnfolderBase]: 46/205 cut-off events. [2023-12-09 14:57:24,355 INFO L125 PetriNetUnfolderBase]: For 28/35 co-relation queries the response was YES. [2023-12-09 14:57:24,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 399 conditions, 205 events. 46/205 cut-off events. For 28/35 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 844 event pairs, 13 based on Foata normal form. 7/206 useless extension candidates. Maximal degree in co-relation 364. Up to 44 conditions per place. [2023-12-09 14:57:24,358 INFO L140 encePairwiseOnDemand]: 66/74 looper letters, 9 selfloop transitions, 4 changer transitions 38/97 dead transitions. [2023-12-09 14:57:24,359 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 97 transitions, 395 flow [2023-12-09 14:57:24,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 14:57:24,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 14:57:24,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 764 transitions. [2023-12-09 14:57:24,363 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7941787941787942 [2023-12-09 14:57:24,363 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 764 transitions. [2023-12-09 14:57:24,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 764 transitions. [2023-12-09 14:57:24,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:24,364 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 764 transitions. [2023-12-09 14:57:24,368 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 58.76923076923077) internal successors, (764), 13 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:24,372 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 74.0) internal successors, (1036), 14 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:24,373 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 74.0) internal successors, (1036), 14 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:24,376 INFO L308 CegarLoopForPetriNet]: 65 programPoint places, 20 predicate places. [2023-12-09 14:57:24,376 INFO L500 AbstractCegarLoop]: Abstraction has has 85 places, 97 transitions, 395 flow [2023-12-09 14:57:24,377 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 57.57142857142857) internal successors, (403), 7 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:24,377 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:24,377 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:57:24,377 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 14:57:24,378 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 14:57:24,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:24,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1107404510, now seen corresponding path program 1 times [2023-12-09 14:57:24,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:24,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137701083] [2023-12-09 14:57:24,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:24,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:24,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:24,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:57:24,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:24,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137701083] [2023-12-09 14:57:24,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137701083] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:24,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:24,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 14:57:24,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861379891] [2023-12-09 14:57:24,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:24,619 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 14:57:24,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:24,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 14:57:24,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-09 14:57:24,621 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 74 [2023-12-09 14:57:24,622 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 97 transitions, 395 flow. Second operand has 6 states, 6 states have (on average 58.833333333333336) internal successors, (353), 6 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:24,625 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:24,626 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 74 [2023-12-09 14:57:24,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:24,762 INFO L124 PetriNetUnfolderBase]: 91/327 cut-off events. [2023-12-09 14:57:24,762 INFO L125 PetriNetUnfolderBase]: For 41/44 co-relation queries the response was YES. [2023-12-09 14:57:24,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 656 conditions, 327 events. 91/327 cut-off events. For 41/44 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1767 event pairs, 9 based on Foata normal form. 2/312 useless extension candidates. Maximal degree in co-relation 617. Up to 74 conditions per place. [2023-12-09 14:57:24,770 INFO L140 encePairwiseOnDemand]: 65/74 looper letters, 14 selfloop transitions, 5 changer transitions 45/108 dead transitions. [2023-12-09 14:57:24,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 108 transitions, 450 flow [2023-12-09 14:57:24,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-09 14:57:24,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-12-09 14:57:24,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 610 transitions. [2023-12-09 14:57:24,773 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8243243243243243 [2023-12-09 14:57:24,773 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 610 transitions. [2023-12-09 14:57:24,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 610 transitions. [2023-12-09 14:57:24,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:24,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 610 transitions. [2023-12-09 14:57:24,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 61.0) internal successors, (610), 10 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) [2023-12-09 14:57:24,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:24,778 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:24,779 INFO L308 CegarLoopForPetriNet]: 65 programPoint places, 29 predicate places. [2023-12-09 14:57:24,780 INFO L500 AbstractCegarLoop]: Abstraction has has 94 places, 108 transitions, 450 flow [2023-12-09 14:57:24,780 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 58.833333333333336) internal successors, (353), 6 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:24,780 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:24,780 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:57:24,780 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-09 14:57:24,781 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 14:57:24,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:24,782 INFO L85 PathProgramCache]: Analyzing trace with hash -559236201, now seen corresponding path program 1 times [2023-12-09 14:57:24,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:24,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453250778] [2023-12-09 14:57:24,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:24,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:24,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:24,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:57:24,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:24,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453250778] [2023-12-09 14:57:24,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453250778] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:24,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:24,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:57:24,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301873791] [2023-12-09 14:57:24,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:24,951 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:57:24,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:24,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:57:24,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:57:24,955 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 74 [2023-12-09 14:57:24,956 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 108 transitions, 450 flow. Second operand has 7 states, 7 states have (on average 58.714285714285715) internal successors, (411), 7 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:24,956 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:24,956 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 74 [2023-12-09 14:57:24,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:25,101 INFO L124 PetriNetUnfolderBase]: 56/238 cut-off events. [2023-12-09 14:57:25,101 INFO L125 PetriNetUnfolderBase]: For 66/127 co-relation queries the response was YES. [2023-12-09 14:57:25,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 590 conditions, 238 events. 56/238 cut-off events. For 66/127 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1245 event pairs, 0 based on Foata normal form. 23/250 useless extension candidates. Maximal degree in co-relation 547. Up to 53 conditions per place. [2023-12-09 14:57:25,106 INFO L140 encePairwiseOnDemand]: 65/74 looper letters, 10 selfloop transitions, 7 changer transitions 44/105 dead transitions. [2023-12-09 14:57:25,106 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 105 transitions, 522 flow [2023-12-09 14:57:25,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 14:57:25,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 14:57:25,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 782 transitions. [2023-12-09 14:57:25,109 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8128898128898129 [2023-12-09 14:57:25,109 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 782 transitions. [2023-12-09 14:57:25,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 782 transitions. [2023-12-09 14:57:25,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:25,110 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 782 transitions. [2023-12-09 14:57:25,111 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 60.15384615384615) internal successors, (782), 13 states have internal predecessors, (782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:25,113 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 74.0) internal successors, (1036), 14 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:25,113 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 74.0) internal successors, (1036), 14 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:25,115 INFO L308 CegarLoopForPetriNet]: 65 programPoint places, 29 predicate places. [2023-12-09 14:57:25,116 INFO L500 AbstractCegarLoop]: Abstraction has has 94 places, 105 transitions, 522 flow [2023-12-09 14:57:25,116 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 58.714285714285715) internal successors, (411), 7 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:25,116 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:25,116 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:57:25,116 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-09 14:57:25,116 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 14:57:25,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:25,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1554881569, now seen corresponding path program 1 times [2023-12-09 14:57:25,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:25,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025495830] [2023-12-09 14:57:25,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:25,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:25,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:25,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:57:25,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:25,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025495830] [2023-12-09 14:57:25,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025495830] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:25,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:25,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:57:25,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760013424] [2023-12-09 14:57:25,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:25,299 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:57:25,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:25,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:57:25,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:57:25,300 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 74 [2023-12-09 14:57:25,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 105 transitions, 522 flow. Second operand has 7 states, 7 states have (on average 57.714285714285715) internal successors, (404), 7 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:25,301 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:25,301 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 74 [2023-12-09 14:57:25,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:25,409 INFO L124 PetriNetUnfolderBase]: 84/350 cut-off events. [2023-12-09 14:57:25,409 INFO L125 PetriNetUnfolderBase]: For 119/133 co-relation queries the response was YES. [2023-12-09 14:57:25,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 901 conditions, 350 events. 84/350 cut-off events. For 119/133 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2143 event pairs, 0 based on Foata normal form. 3/344 useless extension candidates. Maximal degree in co-relation 853. Up to 79 conditions per place. [2023-12-09 14:57:25,411 INFO L140 encePairwiseOnDemand]: 68/74 looper letters, 0 selfloop transitions, 0 changer transitions 109/109 dead transitions. [2023-12-09 14:57:25,411 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 109 transitions, 601 flow [2023-12-09 14:57:25,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-09 14:57:25,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-12-09 14:57:25,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 410 transitions. [2023-12-09 14:57:25,413 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7915057915057915 [2023-12-09 14:57:25,413 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 410 transitions. [2023-12-09 14:57:25,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 410 transitions. [2023-12-09 14:57:25,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:25,413 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 410 transitions. [2023-12-09 14:57:25,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 58.57142857142857) internal successors, (410), 7 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:25,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 74.0) internal successors, (592), 8 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:25,416 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 74.0) internal successors, (592), 8 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:25,418 INFO L308 CegarLoopForPetriNet]: 65 programPoint places, 33 predicate places. [2023-12-09 14:57:25,418 INFO L500 AbstractCegarLoop]: Abstraction has has 98 places, 109 transitions, 601 flow [2023-12-09 14:57:25,419 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 57.714285714285715) internal successors, (404), 7 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:25,425 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/safe022_tso.i_BEv2_AllErrorsAtOnce [2023-12-09 14:57:25,462 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-12-09 14:57:25,462 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-12-09 14:57:25,462 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-12-09 14:57:25,463 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-09 14:57:25,464 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-09 14:57:25,467 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 14:57:25,467 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 14:57:25,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 02:57:25 BasicIcfg [2023-12-09 14:57:25,482 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 14:57:25,483 INFO L158 Benchmark]: Toolchain (without parser) took 3884.25ms. Allocated memory was 191.9MB in the beginning and 248.5MB in the end (delta: 56.6MB). Free memory was 132.6MB in the beginning and 174.2MB in the end (delta: -41.5MB). Peak memory consumption was 16.5MB. Max. memory is 8.0GB. [2023-12-09 14:57:25,487 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 191.9MB. Free memory is still 143.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 14:57:25,489 INFO L158 Benchmark]: CACSL2BoogieTranslator took 431.97ms. Allocated memory is still 191.9MB. Free memory was 132.4MB in the beginning and 112.1MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-12-09 14:57:25,490 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.62ms. Allocated memory is still 191.9MB. Free memory was 112.1MB in the beginning and 110.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 14:57:25,491 INFO L158 Benchmark]: Boogie Preprocessor took 31.41ms. Allocated memory is still 191.9MB. Free memory was 109.9MB in the beginning and 108.5MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-09 14:57:25,491 INFO L158 Benchmark]: RCFGBuilder took 434.32ms. Allocated memory was 191.9MB in the beginning and 248.5MB in the end (delta: 56.6MB). Free memory was 108.5MB in the beginning and 203.5MB in the end (delta: -95.0MB). Peak memory consumption was 8.1MB. Max. memory is 8.0GB. [2023-12-09 14:57:25,491 INFO L158 Benchmark]: TraceAbstraction took 2924.96ms. Allocated memory is still 248.5MB. Free memory was 203.0MB in the beginning and 174.2MB in the end (delta: 28.8MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2023-12-09 14:57:25,493 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 191.9MB. Free memory is still 143.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 431.97ms. Allocated memory is still 191.9MB. Free memory was 132.4MB in the beginning and 112.1MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 54.62ms. Allocated memory is still 191.9MB. Free memory was 112.1MB in the beginning and 110.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.41ms. Allocated memory is still 191.9MB. Free memory was 109.9MB in the beginning and 108.5MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 434.32ms. Allocated memory was 191.9MB in the beginning and 248.5MB in the end (delta: 56.6MB). Free memory was 108.5MB in the beginning and 203.5MB in the end (delta: -95.0MB). Peak memory consumption was 8.1MB. Max. memory is 8.0GB. * TraceAbstraction took 2924.96ms. Allocated memory is still 248.5MB. Free memory was 203.0MB in the beginning and 174.2MB in the end (delta: 28.8MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 91 locations, 3 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: 2.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 172 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 172 mSDsluCounter, 170 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 130 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 219 IncrementalHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 40 mSDtfsCounter, 219 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=601occurred in iteration=5, InterpolantAutomatonStates: 52, 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, 1.3s InterpolantComputationTime, 239 NumberOfCodeBlocks, 239 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 234 ConstructedInterpolants, 0 QuantifiedInterpolants, 790 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-12-09 14:57:25,513 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...