/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.pointer.base.address.is.valid.at.dereference ASSERTandASSUME --cacsl2boogietranslator.pointer.to.allocated.memory.at.dereference ASSERTandASSUME --cacsl2boogietranslator.check.array.bounds.for.arrays.that.are.off.heap ASSERTandASSUME --cacsl2boogietranslator.check.if.freed.pointer.was.valid true --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 12:50:29,992 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 12:50:30,079 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 12:50:30,084 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 12:50:30,085 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 12:50:30,116 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 12:50:30,116 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 12:50:30,117 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 12:50:30,117 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 12:50:30,121 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 12:50:30,121 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 12:50:30,121 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 12:50:30,122 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 12:50:30,123 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 12:50:30,123 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 12:50:30,123 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 12:50:30,123 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 12:50:30,124 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 12:50:30,124 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 12:50:30,124 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 12:50:30,124 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 12:50:30,125 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 12:50:30,125 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 12:50:30,126 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 12:50:30,126 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 12:50:30,126 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 12:50:30,126 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 12:50:30,127 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 12:50:30,127 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 12:50:30,127 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 12:50:30,128 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 12:50:30,128 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 12:50:30,128 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 12:50:30,128 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 12:50:30,128 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 12:50:30,129 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer base address is valid at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer to allocated memory at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check array bounds for arrays that are off heap -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check if freed pointer was valid -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2023-08-26 12:50:30,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 12:50:30,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 12:50:30,469 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 12:50:30,470 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 12:50:30,472 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 12:50:30,473 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2023-08-26 12:50:31,620 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 12:50:31,853 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 12:50:31,854 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2023-08-26 12:50:31,869 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31c369ccb/c9a1e9812987407e9580d2c39782d7ae/FLAG6dfe7c8ba [2023-08-26 12:50:31,886 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31c369ccb/c9a1e9812987407e9580d2c39782d7ae [2023-08-26 12:50:31,890 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 12:50:31,892 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 12:50:31,894 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 12:50:31,894 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 12:50:31,897 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 12:50:31,898 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 12:50:31" (1/1) ... [2023-08-26 12:50:31,899 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41ec79cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:50:31, skipping insertion in model container [2023-08-26 12:50:31,899 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 12:50:31" (1/1) ... [2023-08-26 12:50:31,939 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 12:50:32,251 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 12:50:32,260 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 12:50:32,288 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-26 12:50:32,289 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [233] [2023-08-26 12:50:32,297 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 12:50:32,337 INFO L206 MainTranslator]: Completed translation [2023-08-26 12:50:32,338 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:50:32 WrapperNode [2023-08-26 12:50:32,338 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 12:50:32,339 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 12:50:32,339 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 12:50:32,339 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 12:50:32,345 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:50:32" (1/1) ... [2023-08-26 12:50:32,370 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:50:32" (1/1) ... [2023-08-26 12:50:32,391 INFO L138 Inliner]: procedures = 162, calls = 13, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 39 [2023-08-26 12:50:32,391 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 12:50:32,392 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 12:50:32,392 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 12:50:32,392 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 12:50:32,399 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:50:32" (1/1) ... [2023-08-26 12:50:32,399 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:50:32" (1/1) ... [2023-08-26 12:50:32,404 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:50:32" (1/1) ... [2023-08-26 12:50:32,404 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:50:32" (1/1) ... [2023-08-26 12:50:32,418 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:50:32" (1/1) ... [2023-08-26 12:50:32,421 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:50:32" (1/1) ... [2023-08-26 12:50:32,425 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:50:32" (1/1) ... [2023-08-26 12:50:32,426 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:50:32" (1/1) ... [2023-08-26 12:50:32,430 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 12:50:32,430 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 12:50:32,431 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 12:50:32,431 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 12:50:32,431 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:50:32" (1/1) ... [2023-08-26 12:50:32,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 12:50:32,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 12:50:32,460 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 12:50:32,468 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 12:50:32,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 12:50:32,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 12:50:32,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 12:50:32,496 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-26 12:50:32,496 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-26 12:50:32,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 12:50:32,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 12:50:32,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 12:50:32,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 12:50:32,498 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 12:50:32,593 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 12:50:32,594 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 12:50:32,683 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 12:50:32,688 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 12:50:32,688 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 12:50:32,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:50:32 BoogieIcfgContainer [2023-08-26 12:50:32,690 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 12:50:32,692 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 12:50:32,692 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 12:50:32,695 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 12:50:32,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 12:50:31" (1/3) ... [2023-08-26 12:50:32,696 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dff151 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 12:50:32, skipping insertion in model container [2023-08-26 12:50:32,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:50:32" (2/3) ... [2023-08-26 12:50:32,696 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dff151 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 12:50:32, skipping insertion in model container [2023-08-26 12:50:32,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:50:32" (3/3) ... [2023-08-26 12:50:32,697 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_pos.i [2023-08-26 12:50:32,712 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 12:50:32,712 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-08-26 12:50:32,712 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 12:50:32,746 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 12:50:32,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 44 transitions, 93 flow [2023-08-26 12:50:32,798 INFO L124 PetriNetUnfolderBase]: 2/43 cut-off events. [2023-08-26 12:50:32,799 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 12:50:32,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 43 events. 2/43 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 31 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 26. Up to 2 conditions per place. [2023-08-26 12:50:32,802 INFO L82 GeneralOperation]: Start removeDead. Operand has 46 places, 44 transitions, 93 flow [2023-08-26 12:50:32,804 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 36 transitions, 75 flow [2023-08-26 12:50:32,807 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 12:50:32,814 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 36 transitions, 75 flow [2023-08-26 12:50:32,817 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 36 transitions, 75 flow [2023-08-26 12:50:32,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 36 transitions, 75 flow [2023-08-26 12:50:32,826 INFO L124 PetriNetUnfolderBase]: 0/36 cut-off events. [2023-08-26 12:50:32,826 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 12:50:32,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 36 events. 0/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 18 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-26 12:50:32,827 INFO L119 LiptonReduction]: Number of co-enabled transitions 168 [2023-08-26 12:50:34,045 INFO L134 LiptonReduction]: Checked pairs total: 106 [2023-08-26 12:50:34,046 INFO L136 LiptonReduction]: Total number of compositions: 36 [2023-08-26 12:50:34,068 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 12:50:34,074 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;@1a5fb7af, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 12:50:34,074 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-08-26 12:50:34,075 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 12:50:34,076 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-26 12:50:34,076 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 12:50:34,076 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 12:50:34,076 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-26 12:50:34,077 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-26 12:50:34,081 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 12:50:34,081 INFO L85 PathProgramCache]: Analyzing trace with hash 182, now seen corresponding path program 1 times [2023-08-26 12:50:34,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 12:50:34,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486238827] [2023-08-26 12:50:34,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 12:50:34,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 12:50:34,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 12:50:34,193 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 12:50:34,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 12:50:34,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486238827] [2023-08-26 12:50:34,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486238827] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 12:50:34,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 12:50:34,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-26 12:50:34,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439890921] [2023-08-26 12:50:34,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 12:50:34,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 12:50:34,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 12:50:34,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 12:50:34,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 12:50:34,231 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 80 [2023-08-26 12:50:34,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 10 places, 6 transitions, 15 flow. Second operand has 2 states, 2 states have (on average 40.5) internal successors, (81), 2 states have internal predecessors, (81), 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 12:50:34,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 12:50:34,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 80 [2023-08-26 12:50:34,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 12:50:34,248 INFO L124 PetriNetUnfolderBase]: 1/6 cut-off events. [2023-08-26 12:50:34,248 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 12:50:34,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17 conditions, 6 events. 1/6 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 1 based on Foata normal form. 0/6 useless extension candidates. Maximal degree in co-relation 8. Up to 7 conditions per place. [2023-08-26 12:50:34,249 INFO L140 encePairwiseOnDemand]: 78/80 looper letters, 4 selfloop transitions, 0 changer transitions 0/4 dead transitions. [2023-08-26 12:50:34,249 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 9 places, 4 transitions, 19 flow [2023-08-26 12:50:34,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 12:50:34,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 12:50:34,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 86 transitions. [2023-08-26 12:50:34,260 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5375 [2023-08-26 12:50:34,261 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 86 transitions. [2023-08-26 12:50:34,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 86 transitions. [2023-08-26 12:50:34,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 12:50:34,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 86 transitions. [2023-08-26 12:50:34,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 43.0) internal successors, (86), 2 states have internal predecessors, (86), 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 12:50:34,272 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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 12:50:34,272 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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 12:50:34,274 INFO L175 Difference]: Start difference. First operand has 10 places, 6 transitions, 15 flow. Second operand 2 states and 86 transitions. [2023-08-26 12:50:34,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 9 places, 4 transitions, 19 flow [2023-08-26 12:50:34,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 8 places, 4 transitions, 18 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 12:50:34,278 INFO L231 Difference]: Finished difference. Result has 8 places, 4 transitions, 10 flow [2023-08-26 12:50:34,280 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=10, PETRI_DIFFERENCE_MINUEND_PLACES=7, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=4, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=4, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=10, PETRI_PLACES=8, PETRI_TRANSITIONS=4} [2023-08-26 12:50:34,282 INFO L281 CegarLoopForPetriNet]: 10 programPoint places, -2 predicate places. [2023-08-26 12:50:34,283 INFO L495 AbstractCegarLoop]: Abstraction has has 8 places, 4 transitions, 10 flow [2023-08-26 12:50:34,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 40.5) internal successors, (81), 2 states have internal predecessors, (81), 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 12:50:34,283 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 12:50:34,283 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-26 12:50:34,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 12:50:34,284 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-26 12:50:34,291 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 12:50:34,291 INFO L85 PathProgramCache]: Analyzing trace with hash 179639, now seen corresponding path program 1 times [2023-08-26 12:50:34,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 12:50:34,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405814305] [2023-08-26 12:50:34,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 12:50:34,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 12:50:34,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 12:50:34,335 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 12:50:34,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 12:50:34,369 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 12:50:34,370 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 12:50:34,371 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2023-08-26 12:50:34,372 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 5 remaining) [2023-08-26 12:50:34,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 5 remaining) [2023-08-26 12:50:34,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-08-26 12:50:34,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONASSERT (0 of 5 remaining) [2023-08-26 12:50:34,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 12:50:34,373 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-26 12:50:34,378 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 12:50:34,378 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 12:50:34,399 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 12:50:34 BasicIcfg [2023-08-26 12:50:34,399 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 12:50:34,400 INFO L158 Benchmark]: Toolchain (without parser) took 2508.31ms. Allocated memory is still 394.3MB. Free memory was 369.1MB in the beginning and 313.8MB in the end (delta: 55.3MB). Peak memory consumption was 53.9MB. Max. memory is 16.0GB. [2023-08-26 12:50:34,401 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 394.3MB. Free memory is still 370.4MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 12:50:34,401 INFO L158 Benchmark]: CACSL2BoogieTranslator took 444.12ms. Allocated memory is still 394.3MB. Free memory was 369.1MB in the beginning and 350.9MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-08-26 12:50:34,402 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.41ms. Allocated memory is still 394.3MB. Free memory was 350.9MB in the beginning and 348.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 12:50:34,402 INFO L158 Benchmark]: Boogie Preprocessor took 37.86ms. Allocated memory is still 394.3MB. Free memory was 348.8MB in the beginning and 347.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 12:50:34,403 INFO L158 Benchmark]: RCFGBuilder took 259.49ms. Allocated memory is still 394.3MB. Free memory was 347.4MB in the beginning and 336.2MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-26 12:50:34,403 INFO L158 Benchmark]: TraceAbstraction took 1707.29ms. Allocated memory is still 394.3MB. Free memory was 335.5MB in the beginning and 313.8MB in the end (delta: 21.7MB). Peak memory consumption was 20.3MB. Max. memory is 16.0GB. [2023-08-26 12:50:34,411 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 394.3MB. Free memory is still 370.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 444.12ms. Allocated memory is still 394.3MB. Free memory was 369.1MB in the beginning and 350.9MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 52.41ms. Allocated memory is still 394.3MB. Free memory was 350.9MB in the beginning and 348.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 37.86ms. Allocated memory is still 394.3MB. Free memory was 348.8MB in the beginning and 347.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 259.49ms. Allocated memory is still 394.3MB. Free memory was 347.4MB in the beginning and 336.2MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * TraceAbstraction took 1707.29ms. Allocated memory is still 394.3MB. Free memory was 335.5MB in the beginning and 313.8MB in the end (delta: 21.7MB). Peak memory consumption was 20.3MB. 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: 1.2s, 40 PlacesBefore, 10 PlacesAfterwards, 36 TransitionsBefore, 6 TransitionsAfterwards, 168 CoEnabledTransitionPairs, 5 FixpointIterations, 19 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 36 TotalNumberOfCompositions, 106 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 106, independent: 106, independent conditional: 0, independent unconditional: 106, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 83, independent: 83, independent conditional: 0, independent unconditional: 83, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 106, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 83, unknown conditional: 0, unknown unconditional: 83] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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: [L688] 0 int x = 3; [L689] 0 pthread_t id; [L690] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, x=3] [L683] 1 int x = __VERIFIER_nondet_int(); [L684] CALL 1 __VERIFIER_assert(x == 3) [L19] COND TRUE 1 !(cond) [L19] CALL 1 reach_error() [L18] COND FALSE 1 !(0) [L18] 1 __assert_fail ("0", "36-apron_41-threadenter-no-locals_unknown_1_pos.c", 3, __extension__ __PRETTY_FUNCTION__) - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 690]: 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, 62 locations, 5 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: 1.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, 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, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 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 12:50:34,430 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...