/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.signed.integer.overflows 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 [2023-08-27 04:50:08,109 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 04:50:08,195 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 [2023-08-27 04:50:08,200 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 04:50:08,201 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 04:50:08,234 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 04:50:08,234 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 04:50:08,235 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 04:50:08,236 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 04:50:08,239 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 04:50:08,239 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 04:50:08,240 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 04:50:08,240 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 04:50:08,241 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 04:50:08,242 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 04:50:08,242 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 04:50:08,242 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 04:50:08,243 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 04:50:08,243 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 04:50:08,243 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 04:50:08,243 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 04:50:08,243 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 04:50:08,244 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 04:50:08,244 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 04:50:08,245 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 04:50:08,245 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 04:50:08,245 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 04:50:08,245 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 04:50:08,245 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 04:50:08,246 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 04:50:08,247 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 04:50:08,247 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 04:50:08,247 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 04:50:08,247 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 04:50:08,248 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 04:50:08,248 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 04:50:08,591 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 04:50:08,613 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 04:50:08,615 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 04:50:08,616 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 04:50:08,618 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 04:50:08,620 INFO L431 ainManager$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 [2023-08-27 04:50:09,811 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 04:50:10,131 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 04:50:10,132 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i [2023-08-27 04:50:10,150 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c559417f5/55c553a49e8d417c93e54e3066f9e104/FLAGb11abdab4 [2023-08-27 04:50:10,166 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c559417f5/55c553a49e8d417c93e54e3066f9e104 [2023-08-27 04:50:10,170 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 04:50:10,172 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 04:50:10,174 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 04:50:10,174 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 04:50:10,177 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 04:50:10,178 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:50:10" (1/1) ... [2023-08-27 04:50:10,179 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30a4754a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:10, skipping insertion in model container [2023-08-27 04:50:10,179 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:50:10" (1/1) ... [2023-08-27 04:50:10,230 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 04:50:10,556 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 04:50:10,569 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 04:50:10,601 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-27 04:50:10,603 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [233] [2023-08-27 04:50:10,621 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 04:50:10,657 INFO L206 MainTranslator]: Completed translation [2023-08-27 04:50:10,657 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:10 WrapperNode [2023-08-27 04:50:10,658 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 04:50:10,659 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 04:50:10,659 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 04:50:10,659 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 04:50:10,665 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:10" (1/1) ... [2023-08-27 04:50:10,689 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:10" (1/1) ... [2023-08-27 04:50:10,707 INFO L138 Inliner]: procedures = 163, calls = 22, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2023-08-27 04:50:10,708 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 04:50:10,708 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 04:50:10,709 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 04:50:10,709 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 04:50:10,721 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:10" (1/1) ... [2023-08-27 04:50:10,722 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:10" (1/1) ... [2023-08-27 04:50:10,730 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:10" (1/1) ... [2023-08-27 04:50:10,730 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:10" (1/1) ... [2023-08-27 04:50:10,741 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:10" (1/1) ... [2023-08-27 04:50:10,743 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:10" (1/1) ... [2023-08-27 04:50:10,745 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:10" (1/1) ... [2023-08-27 04:50:10,746 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:10" (1/1) ... [2023-08-27 04:50:10,748 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 04:50:10,749 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 04:50:10,749 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 04:50:10,749 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 04:50:10,750 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:10" (1/1) ... [2023-08-27 04:50:10,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 04:50:10,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 04:50:10,783 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) [2023-08-27 04:50:10,808 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 [2023-08-27 04:50:10,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 04:50:10,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 04:50:10,825 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-27 04:50:10,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 04:50:10,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 04:50:10,826 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-27 04:50:10,826 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-27 04:50:10,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 04:50:10,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 04:50:10,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 04:50:10,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 04:50:10,828 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-27 04:50:10,937 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 04:50:10,938 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 04:50:11,140 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 04:50:11,145 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 04:50:11,146 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 04:50:11,147 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:50:11 BoogieIcfgContainer [2023-08-27 04:50:11,147 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 04:50:11,149 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 04:50:11,149 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 04:50:11,154 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 04:50:11,154 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 04:50:10" (1/3) ... [2023-08-27 04:50:11,155 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16bdcec3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 04:50:11, skipping insertion in model container [2023-08-27 04:50:11,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:10" (2/3) ... [2023-08-27 04:50:11,156 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16bdcec3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 04:50:11, skipping insertion in model container [2023-08-27 04:50:11,156 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:50:11" (3/3) ... [2023-08-27 04:50:11,157 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_neg.i [2023-08-27 04:50:11,173 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 04:50:11,173 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-27 04:50:11,173 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 04:50:11,247 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-27 04:50:11,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 63 transitions, 134 flow [2023-08-27 04:50:11,338 INFO L124 PetriNetUnfolderBase]: 3/62 cut-off events. [2023-08-27 04:50:11,338 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-27 04:50:11,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 62 events. 3/62 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 29 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2023-08-27 04:50:11,343 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 63 transitions, 134 flow [2023-08-27 04:50:11,348 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 49 places, 46 transitions, 95 flow [2023-08-27 04:50:11,353 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 04:50:11,365 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 46 transitions, 95 flow [2023-08-27 04:50:11,369 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 46 transitions, 95 flow [2023-08-27 04:50:11,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 46 transitions, 95 flow [2023-08-27 04:50:11,397 INFO L124 PetriNetUnfolderBase]: 1/46 cut-off events. [2023-08-27 04:50:11,397 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 04:50:11,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 46 events. 1/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 14 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2023-08-27 04:50:11,399 INFO L119 LiptonReduction]: Number of co-enabled transitions 216 [2023-08-27 04:50:13,376 INFO L134 LiptonReduction]: Checked pairs total: 210 [2023-08-27 04:50:13,376 INFO L136 LiptonReduction]: Total number of compositions: 44 [2023-08-27 04:50:13,388 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 04:50:13,394 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;@31c9aef8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 04:50:13,394 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-08-27 04:50:13,397 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 04:50:13,397 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-08-27 04:50:13,397 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 04:50:13,397 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 04:50:13,398 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 04:50:13,398 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONASSERT, t_funErr0ASSERT_VIOLATIONASSERT] === [2023-08-27 04:50:13,402 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 04:50:13,403 INFO L85 PathProgramCache]: Analyzing trace with hash 237951, now seen corresponding path program 1 times [2023-08-27 04:50:13,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 04:50:13,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040027889] [2023-08-27 04:50:13,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 04:50:13,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 04:50:13,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 04:50:13,512 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 04:50:13,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 04:50:13,547 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 04:50:13,548 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 04:50:13,549 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2023-08-27 04:50:13,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-08-27 04:50:13,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONASSERT (0 of 3 remaining) [2023-08-27 04:50:13,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 04:50:13,552 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 04:50:13,557 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 04:50:13,558 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 04:50:13,579 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 04:50:13 BasicIcfg [2023-08-27 04:50:13,580 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 04:50:13,581 INFO L158 Benchmark]: Toolchain (without parser) took 3409.14ms. Allocated memory was 337.6MB in the beginning and 417.3MB in the end (delta: 79.7MB). Free memory was 312.9MB in the beginning and 334.0MB in the end (delta: -21.1MB). Peak memory consumption was 59.0MB. Max. memory is 16.0GB. [2023-08-27 04:50:13,581 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 337.6MB. Free memory is still 314.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 04:50:13,582 INFO L158 Benchmark]: CACSL2BoogieTranslator took 484.03ms. Allocated memory is still 337.6MB. Free memory was 312.9MB in the beginning and 293.9MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-27 04:50:13,582 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.15ms. Allocated memory is still 337.6MB. Free memory was 293.9MB in the beginning and 291.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 04:50:13,583 INFO L158 Benchmark]: Boogie Preprocessor took 39.70ms. Allocated memory is still 337.6MB. Free memory was 291.9MB in the beginning and 290.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 04:50:13,583 INFO L158 Benchmark]: RCFGBuilder took 398.75ms. Allocated memory is still 337.6MB. Free memory was 290.5MB in the beginning and 278.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-27 04:50:13,584 INFO L158 Benchmark]: TraceAbstraction took 2430.57ms. Allocated memory was 337.6MB in the beginning and 417.3MB in the end (delta: 79.7MB). Free memory was 277.2MB in the beginning and 334.0MB in the end (delta: -56.8MB). Peak memory consumption was 23.4MB. Max. memory is 16.0GB. [2023-08-27 04:50:13,586 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 337.6MB. Free memory is still 314.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 484.03ms. Allocated memory is still 337.6MB. Free memory was 312.9MB in the beginning and 293.9MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 49.15ms. Allocated memory is still 337.6MB. Free memory was 293.9MB in the beginning and 291.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 39.70ms. Allocated memory is still 337.6MB. Free memory was 291.9MB in the beginning and 290.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 398.75ms. Allocated memory is still 337.6MB. Free memory was 290.5MB in the beginning and 278.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 2430.57ms. Allocated memory was 337.6MB in the beginning and 417.3MB in the end (delta: 79.7MB). Free memory was 277.2MB in the beginning and 334.0MB in the end (delta: -56.8MB). Peak memory consumption was 23.4MB. 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: 2.0s, 49 PlacesBefore, 9 PlacesAfterwards, 46 TransitionsBefore, 5 TransitionsAfterwards, 216 CoEnabledTransitionPairs, 5 FixpointIterations, 20 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 44 TotalNumberOfCompositions, 210 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 170, independent: 157, independent conditional: 0, independent unconditional: 157, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 122, independent: 112, independent conditional: 0, independent unconditional: 112, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 170, independent: 45, independent conditional: 0, independent unconditional: 45, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 122, unknown conditional: 0, unknown unconditional: 122] , Statistics on independence cache: Total cache size (in pairs): 2, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, 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: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 87 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 0, 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, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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! [2023-08-27 04:50:13,608 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...