/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_2_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 17:56:35,575 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 17:56:35,660 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 17:56:35,665 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 17:56:35,666 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 17:56:35,695 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 17:56:35,696 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 17:56:35,696 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 17:56:35,697 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 17:56:35,700 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 17:56:35,701 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 17:56:35,701 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 17:56:35,701 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 17:56:35,702 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 17:56:35,702 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 17:56:35,703 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 17:56:35,703 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 17:56:35,703 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 17:56:35,703 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 17:56:35,703 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 17:56:35,704 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 17:56:35,704 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 17:56:35,705 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 17:56:35,705 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 17:56:35,705 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 17:56:35,706 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 17:56:35,706 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 17:56:35,706 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:56:35,706 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 17:56:35,707 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 17:56:35,708 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 17:56:35,708 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 17:56:35,708 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 17:56:35,708 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 17:56:35,708 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 17:56:35,709 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 17:56:36,064 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 17:56:36,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 17:56:36,091 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 17:56:36,092 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 17:56:36,093 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 17:56:36,094 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i [2023-08-25 17:56:37,330 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 17:56:37,615 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 17:56:37,615 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i [2023-08-25 17:56:37,633 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5b53a5f5/d8df53e051954f8ba1f77877aeb7e31c/FLAGdb2678606 [2023-08-25 17:56:37,649 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5b53a5f5/d8df53e051954f8ba1f77877aeb7e31c [2023-08-25 17:56:37,653 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 17:56:37,654 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 17:56:37,656 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 17:56:37,656 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 17:56:37,659 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 17:56:37,660 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:56:37" (1/1) ... [2023-08-25 17:56:37,661 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a486eb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:37, skipping insertion in model container [2023-08-25 17:56:37,661 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:56:37" (1/1) ... [2023-08-25 17:56:37,709 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 17:56:38,000 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:56:38,017 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 17:56:38,048 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-25 17:56:38,050 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [233] [2023-08-25 17:56:38,072 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:56:38,104 INFO L206 MainTranslator]: Completed translation [2023-08-25 17:56:38,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:38 WrapperNode [2023-08-25 17:56:38,104 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 17:56:38,105 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 17:56:38,105 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 17:56:38,105 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 17:56:38,110 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:38" (1/1) ... [2023-08-25 17:56:38,129 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:38" (1/1) ... [2023-08-25 17:56:38,145 INFO L138 Inliner]: procedures = 163, calls = 22, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2023-08-25 17:56:38,146 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 17:56:38,146 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 17:56:38,146 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 17:56:38,147 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 17:56:38,154 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:38" (1/1) ... [2023-08-25 17:56:38,154 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:38" (1/1) ... [2023-08-25 17:56:38,156 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:38" (1/1) ... [2023-08-25 17:56:38,157 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:38" (1/1) ... [2023-08-25 17:56:38,161 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:38" (1/1) ... [2023-08-25 17:56:38,163 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:38" (1/1) ... [2023-08-25 17:56:38,164 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:38" (1/1) ... [2023-08-25 17:56:38,165 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:38" (1/1) ... [2023-08-25 17:56:38,167 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 17:56:38,168 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 17:56:38,168 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 17:56:38,168 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 17:56:38,169 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:38" (1/1) ... [2023-08-25 17:56:38,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:56:38,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 17:56:38,194 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 17:56:38,221 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 17:56:38,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 17:56:38,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 17:56:38,238 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 17:56:38,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 17:56:38,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 17:56:38,239 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 17:56:38,239 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 17:56:38,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 17:56:38,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 17:56:38,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 17:56:38,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 17:56:38,241 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 17:56:38,399 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 17:56:38,401 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 17:56:38,611 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 17:56:38,616 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 17:56:38,617 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 17:56:38,618 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:56:38 BoogieIcfgContainer [2023-08-25 17:56:38,619 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 17:56:38,621 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 17:56:38,621 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 17:56:38,624 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 17:56:38,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 05:56:37" (1/3) ... [2023-08-25 17:56:38,625 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60eff8eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:56:38, skipping insertion in model container [2023-08-25 17:56:38,625 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:56:38" (2/3) ... [2023-08-25 17:56:38,626 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60eff8eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:56:38, skipping insertion in model container [2023-08-25 17:56:38,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:56:38" (3/3) ... [2023-08-25 17:56:38,627 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_neg.i [2023-08-25 17:56:38,643 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 17:56:38,643 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-08-25 17:56:38,643 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 17:56:38,718 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-25 17:56:38,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 82 transitions, 172 flow [2023-08-25 17:56:38,798 INFO L124 PetriNetUnfolderBase]: 3/81 cut-off events. [2023-08-25 17:56:38,798 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 17:56:38,804 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 17:56:38,805 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 82 transitions, 172 flow [2023-08-25 17:56:38,812 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 74 transitions, 151 flow [2023-08-25 17:56:38,817 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 17:56:38,840 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 74 transitions, 151 flow [2023-08-25 17:56:38,842 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 74 transitions, 151 flow [2023-08-25 17:56:38,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 74 transitions, 151 flow [2023-08-25 17:56:38,858 INFO L124 PetriNetUnfolderBase]: 3/74 cut-off events. [2023-08-25 17:56:38,858 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:56:38,859 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 17:56:38,860 INFO L119 LiptonReduction]: Number of co-enabled transitions 960 [2023-08-25 17:56:41,569 INFO L134 LiptonReduction]: Checked pairs total: 1031 [2023-08-25 17:56:41,569 INFO L136 LiptonReduction]: Total number of compositions: 84 [2023-08-25 17:56:41,580 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 17:56:41,585 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;@1f4fb440, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 17:56:41,585 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-08-25 17:56:41,588 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 17:56:41,588 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-08-25 17:56:41,588 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:56:41,588 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:56:41,589 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-25 17:56:41,589 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 17:56:41,593 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:56:41,593 INFO L85 PathProgramCache]: Analyzing trace with hash 322254, now seen corresponding path program 1 times [2023-08-25 17:56:41,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:56:41,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803032004] [2023-08-25 17:56:41,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:56:41,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:56:41,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:56:41,752 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 17:56:41,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:56:41,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803032004] [2023-08-25 17:56:41,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803032004] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:56:41,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:56:41,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 17:56:41,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451631622] [2023-08-25 17:56:41,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:56:41,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 17:56:41,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:56:41,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 17:56:41,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 17:56:41,781 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 166 [2023-08-25 17:56:41,783 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 17:56:41,783 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:56:41,783 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 166 [2023-08-25 17:56:41,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:56:41,807 INFO L124 PetriNetUnfolderBase]: 6/19 cut-off events. [2023-08-25 17:56:41,807 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:56:41,807 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 17:56:41,808 INFO L140 encePairwiseOnDemand]: 162/166 looper letters, 5 selfloop transitions, 0 changer transitions 2/7 dead transitions. [2023-08-25 17:56:41,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 12 places, 7 transitions, 31 flow [2023-08-25 17:56:41,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 17:56:41,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 17:56:41,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 165 transitions. [2023-08-25 17:56:41,818 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49698795180722893 [2023-08-25 17:56:41,819 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 165 transitions. [2023-08-25 17:56:41,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 165 transitions. [2023-08-25 17:56:41,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:56:41,822 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 165 transitions. [2023-08-25 17:56:41,827 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 17:56:41,832 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 17:56:41,833 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 17:56:41,835 INFO L175 Difference]: Start difference. First operand has 15 places, 11 transitions, 25 flow. Second operand 2 states and 165 transitions. [2023-08-25 17:56:41,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 12 places, 7 transitions, 31 flow [2023-08-25 17:56:41,837 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 17:56:41,837 INFO L231 Difference]: Finished difference. Result has 11 places, 5 transitions, 12 flow [2023-08-25 17:56:41,839 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 17:56:41,843 INFO L281 CegarLoopForPetriNet]: 15 programPoint places, -4 predicate places. [2023-08-25 17:56:41,844 INFO L495 AbstractCegarLoop]: Abstraction has has 11 places, 5 transitions, 12 flow [2023-08-25 17:56:41,844 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 17:56:41,844 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:56:41,844 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-25 17:56:41,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 17:56:41,845 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 17:56:41,845 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:56:41,845 INFO L85 PathProgramCache]: Analyzing trace with hash 322267, now seen corresponding path program 1 times [2023-08-25 17:56:41,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:56:41,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564634804] [2023-08-25 17:56:41,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:56:41,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:56:41,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 17:56:41,880 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 17:56:41,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 17:56:41,910 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 17:56:41,910 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 17:56:41,912 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr2ASSERT_VIOLATIONASSERT (9 of 10 remaining) [2023-08-25 17:56:41,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2023-08-25 17:56:41,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 10 remaining) [2023-08-25 17:56:41,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 10 remaining) [2023-08-25 17:56:41,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 10 remaining) [2023-08-25 17:56:41,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONASSERT (4 of 10 remaining) [2023-08-25 17:56:41,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining) [2023-08-25 17:56:41,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2023-08-25 17:56:41,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2023-08-25 17:56:41,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2023-08-25 17:56:41,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 17:56:41,915 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-25 17:56:41,921 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 17:56:41,921 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 17:56:41,936 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 05:56:41 BasicIcfg [2023-08-25 17:56:41,936 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 17:56:41,937 INFO L158 Benchmark]: Toolchain (without parser) took 4282.48ms. Allocated memory was 356.5MB in the beginning and 450.9MB in the end (delta: 94.4MB). Free memory was 331.4MB in the beginning and 391.1MB in the end (delta: -59.7MB). Peak memory consumption was 36.3MB. Max. memory is 16.0GB. [2023-08-25 17:56:41,937 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 356.5MB. Free memory is still 332.8MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 17:56:41,937 INFO L158 Benchmark]: CACSL2BoogieTranslator took 448.24ms. Allocated memory is still 356.5MB. Free memory was 331.4MB in the beginning and 312.1MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 17:56:41,938 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.68ms. Allocated memory is still 356.5MB. Free memory was 312.1MB in the beginning and 310.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 17:56:41,938 INFO L158 Benchmark]: Boogie Preprocessor took 20.87ms. Allocated memory is still 356.5MB. Free memory was 310.0MB in the beginning and 309.0MB in the end (delta: 982.7kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 17:56:41,939 INFO L158 Benchmark]: RCFGBuilder took 451.00ms. Allocated memory is still 356.5MB. Free memory was 308.8MB in the beginning and 294.8MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-25 17:56:41,939 INFO L158 Benchmark]: TraceAbstraction took 3315.04ms. Allocated memory was 356.5MB in the beginning and 450.9MB in the end (delta: 94.4MB). Free memory was 294.3MB in the beginning and 391.1MB in the end (delta: -96.8MB). Peak memory consumption was 604.9kB. Max. memory is 16.0GB. [2023-08-25 17:56:41,941 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 356.5MB. Free memory is still 332.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 448.24ms. Allocated memory is still 356.5MB. Free memory was 331.4MB in the beginning and 312.1MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 40.68ms. Allocated memory is still 356.5MB. Free memory was 312.1MB in the beginning and 310.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 20.87ms. Allocated memory is still 356.5MB. Free memory was 310.0MB in the beginning and 309.0MB in the end (delta: 982.7kB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 451.00ms. Allocated memory is still 356.5MB. Free memory was 308.8MB in the beginning and 294.8MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 3315.04ms. Allocated memory was 356.5MB in the beginning and 450.9MB in the end (delta: 94.4MB). Free memory was 294.3MB in the beginning and 391.1MB in the end (delta: -96.8MB). Peak memory consumption was 604.9kB. 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: 2.7s, 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 == 1)) [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_2_neg.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: 3.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.8s, 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, 0.1s 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 17:56:41,960 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...