/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 --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -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 [2023-08-26 23:00:49,863 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 23:00:49,945 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 [2023-08-26 23:00:49,950 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 23:00:49,950 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 23:00:49,983 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 23:00:49,984 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 23:00:49,984 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 23:00:49,985 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 23:00:49,989 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 23:00:49,989 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 23:00:49,989 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 23:00:49,989 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 23:00:49,991 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 23:00:49,991 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 23:00:49,991 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 23:00:49,991 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 23:00:49,992 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 23:00:49,992 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 23:00:49,992 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 23:00:49,992 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 23:00:49,993 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 23:00:49,993 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 23:00:49,994 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 23:00:49,994 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 23:00:49,994 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 23:00:49,994 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 23:00:49,994 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 23:00:49,995 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 23:00:49,995 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 23:00:49,996 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 23:00:49,996 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 23:00:49,996 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 23:00:49,996 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 23:00:49,996 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 23:00:49,996 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-26 23:00:50,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 23:00:50,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 23:00:50,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 23:00:50,330 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 23:00:50,330 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 23:00:50,331 INFO L431 ainManager$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 [2023-08-26 23:00:51,346 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 23:00:51,637 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 23:00:51,638 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2023-08-26 23:00:51,656 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/539f0d4f8/f4606e7aa707484eba689235646d4237/FLAG4cf1cd052 [2023-08-26 23:00:51,667 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/539f0d4f8/f4606e7aa707484eba689235646d4237 [2023-08-26 23:00:51,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 23:00:51,671 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 23:00:51,672 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 23:00:51,672 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 23:00:51,674 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 23:00:51,675 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 11:00:51" (1/1) ... [2023-08-26 23:00:51,676 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@377ce0ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:00:51, skipping insertion in model container [2023-08-26 23:00:51,676 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 11:00:51" (1/1) ... [2023-08-26 23:00:51,715 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 23:00:52,006 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 23:00:52,019 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 23:00:52,049 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-26 23:00:52,051 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [233] [2023-08-26 23:00:52,073 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 23:00:52,116 INFO L206 MainTranslator]: Completed translation [2023-08-26 23:00:52,117 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:00:52 WrapperNode [2023-08-26 23:00:52,117 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 23:00:52,118 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 23:00:52,118 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 23:00:52,118 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 23:00:52,124 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:00:52" (1/1) ... [2023-08-26 23:00:52,154 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:00:52" (1/1) ... [2023-08-26 23:00:52,177 INFO L138 Inliner]: procedures = 163, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 63 [2023-08-26 23:00:52,177 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 23:00:52,179 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 23:00:52,179 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 23:00:52,179 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 23:00:52,186 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:00:52" (1/1) ... [2023-08-26 23:00:52,186 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:00:52" (1/1) ... [2023-08-26 23:00:52,192 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:00:52" (1/1) ... [2023-08-26 23:00:52,193 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:00:52" (1/1) ... [2023-08-26 23:00:52,206 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:00:52" (1/1) ... [2023-08-26 23:00:52,208 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:00:52" (1/1) ... [2023-08-26 23:00:52,209 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:00:52" (1/1) ... [2023-08-26 23:00:52,210 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:00:52" (1/1) ... [2023-08-26 23:00:52,212 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 23:00:52,212 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 23:00:52,213 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 23:00:52,213 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 23:00:52,213 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:00:52" (1/1) ... [2023-08-26 23:00:52,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 23:00:52,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 23:00:52,246 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) [2023-08-26 23:00:52,269 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 [2023-08-26 23:00:52,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 23:00:52,282 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 23:00:52,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 23:00:52,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 23:00:52,283 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-26 23:00:52,283 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-26 23:00:52,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 23:00:52,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 23:00:52,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 23:00:52,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 23:00:52,284 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 23:00:52,399 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 23:00:52,401 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 23:00:52,602 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 23:00:52,611 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 23:00:52,612 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 23:00:52,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 11:00:52 BoogieIcfgContainer [2023-08-26 23:00:52,614 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 23:00:52,616 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 23:00:52,616 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 23:00:52,621 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 23:00:52,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 11:00:51" (1/3) ... [2023-08-26 23:00:52,622 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d47dca8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 11:00:52, skipping insertion in model container [2023-08-26 23:00:52,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:00:52" (2/3) ... [2023-08-26 23:00:52,622 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d47dca8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 11:00:52, skipping insertion in model container [2023-08-26 23:00:52,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 11:00:52" (3/3) ... [2023-08-26 23:00:52,629 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2023-08-26 23:00:52,644 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 23:00:52,644 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-26 23:00:52,644 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 23:00:52,701 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 23:00:52,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 77 transitions, 159 flow [2023-08-26 23:00:52,784 INFO L124 PetriNetUnfolderBase]: 3/76 cut-off events. [2023-08-26 23:00:52,785 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 23:00:52,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2023-08-26 23:00:52,791 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 77 transitions, 159 flow [2023-08-26 23:00:52,796 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 64 transitions, 131 flow [2023-08-26 23:00:52,800 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 23:00:52,810 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 64 transitions, 131 flow [2023-08-26 23:00:52,812 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 64 transitions, 131 flow [2023-08-26 23:00:52,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 67 places, 64 transitions, 131 flow [2023-08-26 23:00:52,832 INFO L124 PetriNetUnfolderBase]: 1/64 cut-off events. [2023-08-26 23:00:52,832 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 23:00:52,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 64 events. 1/64 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. 0/63 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2023-08-26 23:00:52,834 INFO L119 LiptonReduction]: Number of co-enabled transitions 400 [2023-08-26 23:00:55,178 INFO L134 LiptonReduction]: Checked pairs total: 1159 [2023-08-26 23:00:55,178 INFO L136 LiptonReduction]: Total number of compositions: 54 [2023-08-26 23:00:55,190 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 23:00:55,196 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;@360e15b1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 23:00:55,197 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-26 23:00:55,201 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 23:00:55,201 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2023-08-26 23:00:55,201 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 23:00:55,201 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:00:55,202 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-26 23:00:55,202 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 23:00:55,206 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:00:55,207 INFO L85 PathProgramCache]: Analyzing trace with hash 248403630, now seen corresponding path program 1 times [2023-08-26 23:00:55,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:00:55,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371851793] [2023-08-26 23:00:55,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:00:55,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:00:55,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 23:00:55,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 23:00:55,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 23:00:55,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371851793] [2023-08-26 23:00:55,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371851793] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 23:00:55,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 23:00:55,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 23:00:55,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157199490] [2023-08-26 23:00:55,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 23:00:55,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 23:00:55,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 23:00:55,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 23:00:55,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 23:00:55,576 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 131 [2023-08-26 23:00:55,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 15 transitions, 33 flow. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 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) [2023-08-26 23:00:55,579 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 23:00:55,579 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 131 [2023-08-26 23:00:55,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 23:00:55,639 INFO L124 PetriNetUnfolderBase]: 17/61 cut-off events. [2023-08-26 23:00:55,639 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 23:00:55,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 61 events. 17/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 200 event pairs, 9 based on Foata normal form. 6/61 useless extension candidates. Maximal degree in co-relation 109. Up to 34 conditions per place. [2023-08-26 23:00:55,641 INFO L140 encePairwiseOnDemand]: 126/131 looper letters, 10 selfloop transitions, 3 changer transitions 2/18 dead transitions. [2023-08-26 23:00:55,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 18 transitions, 69 flow [2023-08-26 23:00:55,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 23:00:55,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 23:00:55,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 224 transitions. [2023-08-26 23:00:55,654 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5699745547073791 [2023-08-26 23:00:55,655 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 224 transitions. [2023-08-26 23:00:55,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 224 transitions. [2023-08-26 23:00:55,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 23:00:55,660 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 224 transitions. [2023-08-26 23:00:55,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2023-08-26 23:00:55,671 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 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) [2023-08-26 23:00:55,671 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 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) [2023-08-26 23:00:55,673 INFO L175 Difference]: Start difference. First operand has 18 places, 15 transitions, 33 flow. Second operand 3 states and 224 transitions. [2023-08-26 23:00:55,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 18 transitions, 69 flow [2023-08-26 23:00:55,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 18 transitions, 68 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 23:00:55,677 INFO L231 Difference]: Finished difference. Result has 21 places, 14 transitions, 46 flow [2023-08-26 23:00:55,679 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=21, PETRI_TRANSITIONS=14} [2023-08-26 23:00:55,682 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 3 predicate places. [2023-08-26 23:00:55,682 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 14 transitions, 46 flow [2023-08-26 23:00:55,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 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) [2023-08-26 23:00:55,683 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:00:55,683 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 23:00:55,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 23:00:55,683 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 23:00:55,691 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:00:55,692 INFO L85 PathProgramCache]: Analyzing trace with hash -20802675, now seen corresponding path program 1 times [2023-08-26 23:00:55,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:00:55,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971584031] [2023-08-26 23:00:55,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:00:55,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:00:55,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 23:00:55,739 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 23:00:55,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 23:00:55,784 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 23:00:55,784 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 23:00:55,786 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (1 of 2 remaining) [2023-08-26 23:00:55,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-26 23:00:55,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 23:00:55,788 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-26 23:00:55,791 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 23:00:55,792 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 23:00:55,810 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 11:00:55 BasicIcfg [2023-08-26 23:00:55,810 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 23:00:55,811 INFO L158 Benchmark]: Toolchain (without parser) took 4140.12ms. Allocated memory is still 362.8MB. Free memory was 338.8MB in the beginning and 318.9MB in the end (delta: 19.9MB). Peak memory consumption was 21.8MB. Max. memory is 16.0GB. [2023-08-26 23:00:55,811 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 362.8MB. Free memory is still 340.0MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 23:00:55,812 INFO L158 Benchmark]: CACSL2BoogieTranslator took 445.29ms. Allocated memory is still 362.8MB. Free memory was 338.7MB in the beginning and 319.3MB in the end (delta: 19.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-26 23:00:55,812 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.86ms. Allocated memory is still 362.8MB. Free memory was 319.3MB in the beginning and 317.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 23:00:55,812 INFO L158 Benchmark]: Boogie Preprocessor took 33.16ms. Allocated memory is still 362.8MB. Free memory was 317.2MB in the beginning and 316.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 23:00:55,813 INFO L158 Benchmark]: RCFGBuilder took 401.33ms. Allocated memory is still 362.8MB. Free memory was 316.1MB in the beginning and 302.5MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-26 23:00:55,813 INFO L158 Benchmark]: TraceAbstraction took 3194.61ms. Allocated memory is still 362.8MB. Free memory was 301.9MB in the beginning and 318.9MB in the end (delta: -17.0MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 23:00:55,815 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 362.8MB. Free memory is still 340.0MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 445.29ms. Allocated memory is still 362.8MB. Free memory was 338.7MB in the beginning and 319.3MB in the end (delta: 19.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 59.86ms. Allocated memory is still 362.8MB. Free memory was 319.3MB in the beginning and 317.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 33.16ms. Allocated memory is still 362.8MB. Free memory was 317.2MB in the beginning and 316.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 401.33ms. Allocated memory is still 362.8MB. Free memory was 316.1MB in the beginning and 302.5MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 3194.61ms. Allocated memory is still 362.8MB. Free memory was 301.9MB in the beginning and 318.9MB in the end (delta: -17.0MB). There was no memory consumed. 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: 2.4s, 67 PlacesBefore, 18 PlacesAfterwards, 64 TransitionsBefore, 15 TransitionsAfterwards, 400 CoEnabledTransitionPairs, 6 FixpointIterations, 32 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 54 TotalNumberOfCompositions, 1159 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 492, independent: 357, independent conditional: 0, independent unconditional: 357, dependent: 135, dependent conditional: 0, dependent unconditional: 135, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 206, independent: 184, independent conditional: 0, independent unconditional: 184, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 492, independent: 173, independent conditional: 0, independent unconditional: 173, dependent: 113, dependent conditional: 0, dependent unconditional: 113, unknown: 206, unknown conditional: 0, unknown unconditional: 206] , Statistics on independence cache: Total cache size (in pairs): 23, Positive cache size: 12, Positive conditional cache size: 0, Positive unconditional cache size: 12, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, 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 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) VAL [A={3:0}, B={4:0}, arg={0:0}, g=42, id={5:0}, r=1] [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] CALL 0 reach_error() [L18] COND FALSE 0 !(0) [L18] 0 __assert_fail ("0", "36-apron_17-traces-rpb-litmus_unknown_1_neg.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [A={3:0}, B={4:0}, arg={0:0}, 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, 87 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: 3.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 1 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, 1 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, 0.1s 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! [2023-08-26 23:00:55,837 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...