/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 --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 17:56:27,112 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 17:56:27,157 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 [2023-08-25 17:56:27,161 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 17:56:27,162 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 17:56:27,182 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 17:56:27,182 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 17:56:27,183 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 17:56:27,183 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 17:56:27,184 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 17:56:27,185 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 17:56:27,185 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 17:56:27,185 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 17:56:27,185 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 17:56:27,186 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 17:56:27,186 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 17:56:27,186 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 17:56:27,186 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 17:56:27,187 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 17:56:27,187 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 17:56:27,187 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 17:56:27,192 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 17:56:27,192 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 17:56:27,192 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 17:56:27,192 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 17:56:27,193 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 17:56:27,193 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 17:56:27,193 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:56:27,193 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 17:56:27,193 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 17:56:27,194 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 17:56:27,194 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 17:56:27,194 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 17:56:27,194 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 17:56:27,194 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 17:56:27,195 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 17:56:27,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 17:56:27,541 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 17:56:27,543 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 17:56:27,544 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 17:56:27,544 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 17:56:27,547 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i [2023-08-25 17:56:28,701 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 17:56:28,995 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 17:56:28,995 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i [2023-08-25 17:56:29,007 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d7b55ec9/0903a06046c34aea826ec55209d17d40/FLAG89520a9a8 [2023-08-25 17:56:29,018 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d7b55ec9/0903a06046c34aea826ec55209d17d40 [2023-08-25 17:56:29,020 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 17:56:29,021 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 17:56:29,022 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 17:56:29,022 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 17:56:29,024 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 17:56:29,024 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:56:29" (1/1) ... [2023-08-25 17:56:29,025 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5164ccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:29, skipping insertion in model container [2023-08-25 17:56:29,025 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:56:29" (1/1) ... [2023-08-25 17:56:29,074 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 17:56:29,292 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:56:29,302 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 17:56:29,319 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-25 17:56:29,321 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [233] [2023-08-25 17:56:29,335 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:56:29,365 INFO L206 MainTranslator]: Completed translation [2023-08-25 17:56:29,365 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:29 WrapperNode [2023-08-25 17:56:29,366 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 17:56:29,366 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 17:56:29,367 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 17:56:29,367 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 17:56:29,373 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:29" (1/1) ... [2023-08-25 17:56:29,383 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:29" (1/1) ... [2023-08-25 17:56:29,401 INFO L138 Inliner]: procedures = 163, calls = 22, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2023-08-25 17:56:29,402 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 17:56:29,402 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 17:56:29,403 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 17:56:29,403 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 17:56:29,409 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:29" (1/1) ... [2023-08-25 17:56:29,409 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:29" (1/1) ... [2023-08-25 17:56:29,412 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:29" (1/1) ... [2023-08-25 17:56:29,412 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:29" (1/1) ... [2023-08-25 17:56:29,417 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:29" (1/1) ... [2023-08-25 17:56:29,418 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:29" (1/1) ... [2023-08-25 17:56:29,419 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:29" (1/1) ... [2023-08-25 17:56:29,420 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:29" (1/1) ... [2023-08-25 17:56:29,422 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 17:56:29,423 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 17:56:29,423 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 17:56:29,423 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 17:56:29,424 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:29" (1/1) ... [2023-08-25 17:56:29,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:56:29,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 17:56:29,450 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) [2023-08-25 17:56:29,477 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 [2023-08-25 17:56:29,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 17:56:29,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 17:56:29,493 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 17:56:29,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 17:56:29,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 17:56:29,495 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 17:56:29,495 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 17:56:29,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 17:56:29,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 17:56:29,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 17:56:29,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 17:56:29,497 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 17:56:29,642 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 17:56:29,644 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 17:56:29,833 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 17:56:29,838 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 17:56:29,838 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 17:56:29,840 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:56:29 BoogieIcfgContainer [2023-08-25 17:56:29,840 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 17:56:29,842 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 17:56:29,842 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 17:56:29,844 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 17:56:29,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 05:56:29" (1/3) ... [2023-08-25 17:56:29,845 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ad9bbbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:56:29, skipping insertion in model container [2023-08-25 17:56:29,845 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:29" (2/3) ... [2023-08-25 17:56:29,846 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ad9bbbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:56:29, skipping insertion in model container [2023-08-25 17:56:29,846 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:56:29" (3/3) ... [2023-08-25 17:56:29,847 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_1_pos.i [2023-08-25 17:56:29,862 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 17:56:29,862 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-08-25 17:56:29,862 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 17:56:29,905 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-25 17:56:29,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 82 transitions, 172 flow [2023-08-25 17:56:30,024 INFO L124 PetriNetUnfolderBase]: 3/81 cut-off events. [2023-08-25 17:56:30,025 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 17:56:30,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 81 events. 3/81 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 71 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2023-08-25 17:56:30,030 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 82 transitions, 172 flow [2023-08-25 17:56:30,035 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 74 transitions, 151 flow [2023-08-25 17:56:30,038 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 17:56:30,045 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 74 transitions, 151 flow [2023-08-25 17:56:30,053 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 74 transitions, 151 flow [2023-08-25 17:56:30,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 74 transitions, 151 flow [2023-08-25 17:56:30,070 INFO L124 PetriNetUnfolderBase]: 3/74 cut-off events. [2023-08-25 17:56:30,070 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:56:30,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 74 events. 3/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 71 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2023-08-25 17:56:30,072 INFO L119 LiptonReduction]: Number of co-enabled transitions 960 [2023-08-25 17:56:32,886 INFO L134 LiptonReduction]: Checked pairs total: 1031 [2023-08-25 17:56:32,886 INFO L136 LiptonReduction]: Total number of compositions: 84 [2023-08-25 17:56:32,910 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 17:56:32,916 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;@62147926, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 17:56:32,917 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-08-25 17:56:32,925 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 17:56:32,926 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-08-25 17:56:32,926 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:56:32,926 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:56:32,926 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-25 17:56:32,927 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr1ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-08-25 17:56:32,932 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:56:32,932 INFO L85 PathProgramCache]: Analyzing trace with hash 322254, now seen corresponding path program 1 times [2023-08-25 17:56:32,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:56:32,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204476308] [2023-08-25 17:56:32,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:56:32,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:56:33,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:56:33,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:56:33,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:56:33,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204476308] [2023-08-25 17:56:33,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204476308] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:56:33,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:56:33,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 17:56:33,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375841739] [2023-08-25 17:56:33,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:56:33,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 17:56:33,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:56:33,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 17:56:33,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 17:56:33,106 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 166 [2023-08-25 17:56:33,108 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 15 places, 11 transitions, 25 flow. Second operand has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 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) [2023-08-25 17:56:33,108 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:56:33,108 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 166 [2023-08-25 17:56:33,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:56:33,144 INFO L124 PetriNetUnfolderBase]: 6/19 cut-off events. [2023-08-25 17:56:33,144 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:56:33,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 19 events. 6/19 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 33 event pairs, 6 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 34. Up to 20 conditions per place. [2023-08-25 17:56:33,145 INFO L140 encePairwiseOnDemand]: 162/166 looper letters, 5 selfloop transitions, 0 changer transitions 2/7 dead transitions. [2023-08-25 17:56:33,145 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 12 places, 7 transitions, 31 flow [2023-08-25 17:56:33,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 17:56:33,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 17:56:33,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 165 transitions. [2023-08-25 17:56:33,158 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49698795180722893 [2023-08-25 17:56:33,159 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 165 transitions. [2023-08-25 17:56:33,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 165 transitions. [2023-08-25 17:56:33,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:56:33,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 165 transitions. [2023-08-25 17:56:33,167 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 82.5) internal successors, (165), 2 states have internal predecessors, (165), 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) [2023-08-25 17:56:33,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 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) [2023-08-25 17:56:33,176 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 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) [2023-08-25 17:56:33,178 INFO L175 Difference]: Start difference. First operand has 15 places, 11 transitions, 25 flow. Second operand 2 states and 165 transitions. [2023-08-25 17:56:33,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 12 places, 7 transitions, 31 flow [2023-08-25 17:56:33,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 11 places, 7 transitions, 30 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:56:33,181 INFO L231 Difference]: Finished difference. Result has 11 places, 5 transitions, 12 flow [2023-08-25 17:56:33,183 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=16, PETRI_DIFFERENCE_MINUEND_PLACES=10, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=12, PETRI_PLACES=11, PETRI_TRANSITIONS=5} [2023-08-25 17:56:33,187 INFO L281 CegarLoopForPetriNet]: 15 programPoint places, -4 predicate places. [2023-08-25 17:56:33,187 INFO L495 AbstractCegarLoop]: Abstraction has has 11 places, 5 transitions, 12 flow [2023-08-25 17:56:33,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 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) [2023-08-25 17:56:33,188 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:56:33,188 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-25 17:56:33,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 17:56:33,188 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr1ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-08-25 17:56:33,189 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:56:33,189 INFO L85 PathProgramCache]: Analyzing trace with hash 322267, now seen corresponding path program 1 times [2023-08-25 17:56:33,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:56:33,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636120173] [2023-08-25 17:56:33,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:56:33,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:56:33,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 17:56:33,245 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 17:56:33,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 17:56:33,288 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 17:56:33,288 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 17:56:33,289 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr2ASSERT_VIOLATIONASSERT (9 of 10 remaining) [2023-08-25 17:56:33,291 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2023-08-25 17:56:33,291 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 10 remaining) [2023-08-25 17:56:33,291 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 10 remaining) [2023-08-25 17:56:33,291 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 10 remaining) [2023-08-25 17:56:33,291 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONASSERT (4 of 10 remaining) [2023-08-25 17:56:33,292 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining) [2023-08-25 17:56:33,292 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2023-08-25 17:56:33,292 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2023-08-25 17:56:33,292 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2023-08-25 17:56:33,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 17:56:33,293 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-25 17:56:33,297 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 17:56:33,298 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 17:56:33,313 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 05:56:33 BasicIcfg [2023-08-25 17:56:33,313 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 17:56:33,314 INFO L158 Benchmark]: Toolchain (without parser) took 4292.79ms. Allocated memory was 402.7MB in the beginning and 507.5MB in the end (delta: 104.9MB). Free memory was 377.1MB in the beginning and 371.8MB in the end (delta: 5.2MB). Peak memory consumption was 111.5MB. Max. memory is 16.0GB. [2023-08-25 17:56:33,314 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 402.7MB. Free memory was 379.8MB in the beginning and 379.7MB in the end (delta: 94.1kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 17:56:33,314 INFO L158 Benchmark]: CACSL2BoogieTranslator took 344.36ms. Allocated memory is still 402.7MB. Free memory was 376.7MB in the beginning and 357.7MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 17:56:33,315 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.41ms. Allocated memory is still 402.7MB. Free memory was 357.7MB in the beginning and 355.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 17:56:33,315 INFO L158 Benchmark]: Boogie Preprocessor took 19.99ms. Allocated memory is still 402.7MB. Free memory was 355.6MB in the beginning and 354.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 17:56:33,316 INFO L158 Benchmark]: RCFGBuilder took 416.81ms. Allocated memory is still 402.7MB. Free memory was 354.0MB in the beginning and 340.7MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-25 17:56:33,316 INFO L158 Benchmark]: TraceAbstraction took 3471.41ms. Allocated memory was 402.7MB in the beginning and 507.5MB in the end (delta: 104.9MB). Free memory was 340.0MB in the beginning and 371.8MB in the end (delta: -31.8MB). Peak memory consumption was 75.8MB. Max. memory is 16.0GB. [2023-08-25 17:56:33,318 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 402.7MB. Free memory was 379.8MB in the beginning and 379.7MB in the end (delta: 94.1kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 344.36ms. Allocated memory is still 402.7MB. Free memory was 376.7MB in the beginning and 357.7MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 35.41ms. Allocated memory is still 402.7MB. Free memory was 357.7MB in the beginning and 355.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 19.99ms. Allocated memory is still 402.7MB. Free memory was 355.6MB in the beginning and 354.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 416.81ms. Allocated memory is still 402.7MB. Free memory was 354.0MB in the beginning and 340.7MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 3471.41ms. Allocated memory was 402.7MB in the beginning and 507.5MB in the end (delta: 104.9MB). Free memory was 340.0MB in the beginning and 371.8MB in the end (delta: -31.8MB). Peak memory consumption was 75.8MB. 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: 2.8s, 75 PlacesBefore, 15 PlacesAfterwards, 74 TransitionsBefore, 11 TransitionsAfterwards, 960 CoEnabledTransitionPairs, 7 FixpointIterations, 20 TrivialSequentialCompositions, 53 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 3 ChoiceCompositions, 84 TotalNumberOfCompositions, 1031 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 818, independent: 783, independent conditional: 0, independent unconditional: 783, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 530, independent: 516, independent conditional: 0, independent unconditional: 516, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 818, independent: 267, independent conditional: 0, independent unconditional: 267, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 530, unknown conditional: 0, unknown unconditional: 530] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 2, Positive conditional cache size: 0, Positive unconditional cache size: 2, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 18]: assertion can be violated assertion can be violated We found a FailurePath: [L682] 0 int glob1 = 0; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={5:0}, mutex1={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L685] 1 int t = __VERIFIER_nondet_int(); [L687] COND TRUE 1 t == 42 [L688] 1 glob1 = 1 [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(t == 0) [L19] COND TRUE 1 !(cond) [L19] CALL 1 reach_error() [L18] COND FALSE 1 !(0) [L18] 1 __assert_fail ("0", "13-privatized_18-first-reads_unknown_1_pos.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [glob1=1, mutex1={3:0}] - UnprovableResult [Line: 701]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: 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. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 119 locations, 10 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: 3.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 2 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! [2023-08-25 17:56:33,348 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...