/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-24 00:20:15,711 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-24 00:20:15,789 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-24 00:20:15,793 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-24 00:20:15,794 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-24 00:20:15,832 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-24 00:20:15,832 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-24 00:20:15,833 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-24 00:20:15,833 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-24 00:20:15,837 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-24 00:20:15,837 INFO L153 SettingsManager]: * Use SBE=true [2023-08-24 00:20:15,837 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-24 00:20:15,838 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-24 00:20:15,839 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-24 00:20:15,839 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-24 00:20:15,839 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-24 00:20:15,839 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-24 00:20:15,840 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-24 00:20:15,840 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-24 00:20:15,840 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-24 00:20:15,840 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-24 00:20:15,841 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-24 00:20:15,841 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-24 00:20:15,842 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-24 00:20:15,842 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-24 00:20:15,842 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-24 00:20:15,842 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-24 00:20:15,843 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 00:20:15,843 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-24 00:20:15,843 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-24 00:20:15,844 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-24 00:20:15,844 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-24 00:20:15,844 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-24 00:20:15,844 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-24 00:20:15,845 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-24 00:20:15,845 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-08-24 00:20:16,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-24 00:20:16,189 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-24 00:20:16,191 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-24 00:20:16,192 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-24 00:20:16,194 INFO L274 PluginConnector]: CDTParser initialized [2023-08-24 00:20:16,195 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2023-08-24 00:20:17,398 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-24 00:20:17,649 INFO L384 CDTParser]: Found 1 translation units. [2023-08-24 00:20:17,650 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2023-08-24 00:20:17,667 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd411064c/161776f5b87c415caa878a46d389172e/FLAGc4a114119 [2023-08-24 00:20:17,681 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd411064c/161776f5b87c415caa878a46d389172e [2023-08-24 00:20:17,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-24 00:20:17,684 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-24 00:20:17,685 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-24 00:20:17,685 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-24 00:20:17,688 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-24 00:20:17,688 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 12:20:17" (1/1) ... [2023-08-24 00:20:17,689 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f729207 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 12:20:17, skipping insertion in model container [2023-08-24 00:20:17,689 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 12:20:17" (1/1) ... [2023-08-24 00:20:17,726 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-24 00:20:17,871 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/36-apron_17-traces-rpb-litmus_unknown_1_neg.i[1098,1111] [2023-08-24 00:20:18,029 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 00:20:18,043 INFO L201 MainTranslator]: Completed pre-run [2023-08-24 00:20:18,055 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/36-apron_17-traces-rpb-litmus_unknown_1_neg.i[1098,1111] [2023-08-24 00:20:18,073 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-24 00:20:18,075 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [233] [2023-08-24 00:20:18,098 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 00:20:18,142 INFO L206 MainTranslator]: Completed translation [2023-08-24 00:20:18,143 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 12:20:18 WrapperNode [2023-08-24 00:20:18,143 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-24 00:20:18,144 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-24 00:20:18,144 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-24 00:20:18,144 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-24 00:20:18,150 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 12:20:18" (1/1) ... [2023-08-24 00:20:18,179 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 12:20:18" (1/1) ... [2023-08-24 00:20:18,201 INFO L138 Inliner]: procedures = 163, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 60 [2023-08-24 00:20:18,202 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-24 00:20:18,203 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-24 00:20:18,203 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-24 00:20:18,203 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-24 00:20:18,211 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 12:20:18" (1/1) ... [2023-08-24 00:20:18,211 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 12:20:18" (1/1) ... [2023-08-24 00:20:18,217 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 12:20:18" (1/1) ... [2023-08-24 00:20:18,217 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 12:20:18" (1/1) ... [2023-08-24 00:20:18,230 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 12:20:18" (1/1) ... [2023-08-24 00:20:18,231 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 12:20:18" (1/1) ... [2023-08-24 00:20:18,232 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 12:20:18" (1/1) ... [2023-08-24 00:20:18,236 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 12:20:18" (1/1) ... [2023-08-24 00:20:18,240 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-24 00:20:18,241 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-24 00:20:18,241 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-24 00:20:18,241 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-24 00:20:18,242 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 12:20:18" (1/1) ... [2023-08-24 00:20:18,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 00:20:18,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-24 00:20:18,278 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-24 00:20:18,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-24 00:20:18,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-24 00:20:18,321 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-24 00:20:18,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-24 00:20:18,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-24 00:20:18,322 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-24 00:20:18,322 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-24 00:20:18,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-24 00:20:18,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-24 00:20:18,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-24 00:20:18,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-24 00:20:18,324 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-24 00:20:18,475 INFO L236 CfgBuilder]: Building ICFG [2023-08-24 00:20:18,477 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-24 00:20:18,685 INFO L277 CfgBuilder]: Performing block encoding [2023-08-24 00:20:18,692 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-24 00:20:18,692 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-24 00:20:18,695 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 12:20:18 BoogieIcfgContainer [2023-08-24 00:20:18,695 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-24 00:20:18,698 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-24 00:20:18,698 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-24 00:20:18,701 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-24 00:20:18,701 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.08 12:20:17" (1/3) ... [2023-08-24 00:20:18,702 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a4d7699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 12:20:18, skipping insertion in model container [2023-08-24 00:20:18,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 12:20:18" (2/3) ... [2023-08-24 00:20:18,703 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a4d7699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 12:20:18, skipping insertion in model container [2023-08-24 00:20:18,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 12:20:18" (3/3) ... [2023-08-24 00:20:18,704 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2023-08-24 00:20:18,719 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-24 00:20:18,720 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-24 00:20:18,720 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-24 00:20:18,769 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 00:20:18,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 73 transitions, 151 flow [2023-08-24 00:20:18,840 INFO L124 PetriNetUnfolderBase]: 2/72 cut-off events. [2023-08-24 00:20:18,841 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 00:20:18,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 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 43 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2023-08-24 00:20:18,845 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 73 transitions, 151 flow [2023-08-24 00:20:18,848 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 62 transitions, 127 flow [2023-08-24 00:20:18,851 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 00:20:18,860 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 62 transitions, 127 flow [2023-08-24 00:20:18,862 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 62 transitions, 127 flow [2023-08-24 00:20:18,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 62 transitions, 127 flow [2023-08-24 00:20:18,879 INFO L124 PetriNetUnfolderBase]: 1/62 cut-off events. [2023-08-24 00:20:18,880 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 00:20:18,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 62 events. 1/62 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2023-08-24 00:20:18,881 INFO L119 LiptonReduction]: Number of co-enabled transitions 360 [2023-08-24 00:20:21,146 INFO L134 LiptonReduction]: Checked pairs total: 1016 [2023-08-24 00:20:21,147 INFO L136 LiptonReduction]: Total number of compositions: 52 [2023-08-24 00:20:21,158 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-24 00:20:21,164 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4c8ae28c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 00:20:21,164 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-24 00:20:21,167 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 00:20:21,167 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2023-08-24 00:20:21,167 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 00:20:21,167 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 00:20:21,168 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-24 00:20:21,168 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 00:20:21,172 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 00:20:21,172 INFO L85 PathProgramCache]: Analyzing trace with hash 235099129, now seen corresponding path program 1 times [2023-08-24 00:20:21,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 00:20:21,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007620694] [2023-08-24 00:20:21,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 00:20:21,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 00:20:21,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 00:20:21,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 00:20:21,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 00:20:21,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007620694] [2023-08-24 00:20:21,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007620694] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 00:20:21,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 00:20:21,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-24 00:20:21,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871249257] [2023-08-24 00:20:21,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 00:20:21,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 00:20:21,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 00:20:21,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 00:20:21,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 00:20:21,499 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 125 [2023-08-24 00:20:21,502 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 14 transitions, 31 flow. Second operand has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 00:20:21,502 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 00:20:21,502 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 125 [2023-08-24 00:20:21,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 00:20:21,560 INFO L124 PetriNetUnfolderBase]: 14/54 cut-off events. [2023-08-24 00:20:21,560 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 00:20:21,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 54 events. 14/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 161 event pairs, 6 based on Foata normal form. 2/54 useless extension candidates. Maximal degree in co-relation 95. Up to 27 conditions per place. [2023-08-24 00:20:21,562 INFO L140 encePairwiseOnDemand]: 120/125 looper letters, 10 selfloop transitions, 3 changer transitions 1/17 dead transitions. [2023-08-24 00:20:21,562 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 17 transitions, 65 flow [2023-08-24 00:20:21,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 00:20:21,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 00:20:21,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 214 transitions. [2023-08-24 00:20:21,572 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5706666666666667 [2023-08-24 00:20:21,573 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 214 transitions. [2023-08-24 00:20:21,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 214 transitions. [2023-08-24 00:20:21,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 00:20:21,576 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 214 transitions. [2023-08-24 00:20:21,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 00:20:21,584 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 00:20:21,584 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 00:20:21,586 INFO L175 Difference]: Start difference. First operand has 17 places, 14 transitions, 31 flow. Second operand 3 states and 214 transitions. [2023-08-24 00:20:21,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 17 transitions, 65 flow [2023-08-24 00:20:21,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 17 transitions, 64 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-24 00:20:21,589 INFO L231 Difference]: Finished difference. Result has 20 places, 14 transitions, 46 flow [2023-08-24 00:20:21,591 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=20, PETRI_TRANSITIONS=14} [2023-08-24 00:20:21,594 INFO L281 CegarLoopForPetriNet]: 17 programPoint places, 3 predicate places. [2023-08-24 00:20:21,594 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 14 transitions, 46 flow [2023-08-24 00:20:21,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 00:20:21,594 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 00:20:21,594 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 00:20:21,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-24 00:20:21,595 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 00:20:21,595 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 00:20:21,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1253792415, now seen corresponding path program 1 times [2023-08-24 00:20:21,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 00:20:21,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658712853] [2023-08-24 00:20:21,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 00:20:21,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 00:20:21,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 00:20:21,628 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 00:20:21,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 00:20:21,659 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 00:20:21,660 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 00:20:21,661 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-08-24 00:20:21,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-24 00:20:21,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-24 00:20:21,663 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-24 00:20:21,668 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-24 00:20:21,668 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-24 00:20:21,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.08 12:20:21 BasicIcfg [2023-08-24 00:20:21,685 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-24 00:20:21,686 INFO L158 Benchmark]: Toolchain (without parser) took 4001.36ms. Allocated memory is still 335.5MB. Free memory was 290.6MB in the beginning and 218.4MB in the end (delta: 72.2MB). Peak memory consumption was 72.2MB. Max. memory is 16.0GB. [2023-08-24 00:20:21,686 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 335.5MB. Free memory is still 312.9MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-24 00:20:21,687 INFO L158 Benchmark]: CACSL2BoogieTranslator took 458.09ms. Allocated memory is still 335.5MB. Free memory was 289.5MB in the beginning and 270.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-24 00:20:21,687 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.78ms. Allocated memory is still 335.5MB. Free memory was 270.6MB in the beginning and 268.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-24 00:20:21,687 INFO L158 Benchmark]: Boogie Preprocessor took 37.38ms. Allocated memory is still 335.5MB. Free memory was 268.5MB in the beginning and 267.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-24 00:20:21,688 INFO L158 Benchmark]: RCFGBuilder took 454.69ms. Allocated memory is still 335.5MB. Free memory was 267.5MB in the beginning and 253.9MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-24 00:20:21,688 INFO L158 Benchmark]: TraceAbstraction took 2987.23ms. Allocated memory is still 335.5MB. Free memory was 252.8MB in the beginning and 218.4MB in the end (delta: 34.4MB). Peak memory consumption was 36.5MB. Max. memory is 16.0GB. [2023-08-24 00:20:21,691 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 335.5MB. Free memory is still 312.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 458.09ms. Allocated memory is still 335.5MB. Free memory was 289.5MB in the beginning and 270.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 57.78ms. Allocated memory is still 335.5MB. Free memory was 270.6MB in the beginning and 268.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 37.38ms. Allocated memory is still 335.5MB. Free memory was 268.5MB in the beginning and 267.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 454.69ms. Allocated memory is still 335.5MB. Free memory was 267.5MB in the beginning and 253.9MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 2987.23ms. Allocated memory is still 335.5MB. Free memory was 252.8MB in the beginning and 218.4MB in the end (delta: 34.4MB). Peak memory consumption was 36.5MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 232]: Unsoundness Warning unspecified type, defaulting to int C: short [232] - GenericResultAtLocation [Line: 233]: Unsoundness Warning unspecified type, defaulting to int C: short [233] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.3s, 65 PlacesBefore, 17 PlacesAfterwards, 62 TransitionsBefore, 14 TransitionsAfterwards, 360 CoEnabledTransitionPairs, 6 FixpointIterations, 32 TrivialSequentialCompositions, 15 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 52 TotalNumberOfCompositions, 1016 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 449, independent: 327, independent conditional: 0, independent unconditional: 327, dependent: 122, dependent conditional: 0, dependent unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 195, independent: 170, independent conditional: 0, independent unconditional: 170, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 449, independent: 157, independent conditional: 0, independent unconditional: 157, dependent: 97, dependent conditional: 0, dependent unconditional: 97, unknown: 195, unknown conditional: 0, unknown unconditional: 195] , Statistics on independence cache: Total cache size (in pairs): 28, Positive cache size: 14, Positive conditional cache size: 0, Positive unconditional cache size: 14, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 int g = 42; [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L694] 0 int r = __VERIFIER_nondet_int(); [L695] 0 int t; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, B={4:0}, arg={0:0}, g=42, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, r=1] [L700] COND TRUE 0 \read(r) [L701] 0 g = 17 VAL [A={3:0}, B={4:0}, arg={0:0}, g=17, id={5:0}, r=1] [L705] 0 t = g [L706] CALL 0 __VERIFIER_assert(!(t == 17)) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [A={3:0}, B={4:0}, \old(cond)=0, arg={0:0}, cond=0, g=17] - UnprovableResult [Line: 697]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 84 locations, 2 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: 2.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16 IncrementalHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 0 mSDtfsCounter, 16 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=1, InterpolantAutomatonStates: 3, 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, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-24 00:20:21,717 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...