/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_1_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 04:49:53,060 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 04:49:53,129 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 04:49:53,134 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 04:49:53,135 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 04:49:53,164 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 04:49:53,165 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 04:49:53,166 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 04:49:53,166 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 04:49:53,166 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 04:49:53,167 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 04:49:53,167 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 04:49:53,167 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 04:49:53,168 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 04:49:53,168 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 04:49:53,168 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 04:49:53,169 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 04:49:53,169 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 04:49:53,169 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 04:49:53,170 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 04:49:53,170 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 04:49:53,174 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 04:49:53,174 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 04:49:53,174 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 04:49:53,178 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 04:49:53,178 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 04:49:53,178 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 04:49:53,178 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 04:49:53,179 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 04:49:53,179 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 04:49:53,180 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 04:49:53,180 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 04:49:53,180 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 04:49:53,180 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 04:49:53,180 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 04:49:53,181 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 04:49:53,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 04:49:53,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 04:49:53,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 04:49:53,535 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 04:49:53,535 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 04:49:53,536 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i [2023-08-27 04:49:54,710 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 04:49:54,949 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 04:49:54,950 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i [2023-08-27 04:49:54,968 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d08880e1d/54d59cb41f44462099b143ec83539bdc/FLAGe64de1283 [2023-08-27 04:49:54,984 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d08880e1d/54d59cb41f44462099b143ec83539bdc [2023-08-27 04:49:54,989 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 04:49:54,991 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 04:49:54,995 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 04:49:54,995 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 04:49:54,998 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 04:49:55,000 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:49:54" (1/1) ... [2023-08-27 04:49:55,000 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4242569f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:49:55, skipping insertion in model container [2023-08-27 04:49:55,001 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:49:54" (1/1) ... [2023-08-27 04:49:55,049 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 04:49:55,364 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 04:49:55,377 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 04:49:55,405 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-27 04:49:55,407 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [233] [2023-08-27 04:49:55,432 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 04:49:55,464 INFO L206 MainTranslator]: Completed translation [2023-08-27 04:49:55,465 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:49:55 WrapperNode [2023-08-27 04:49:55,465 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 04:49:55,466 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 04:49:55,466 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 04:49:55,466 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 04:49:55,476 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:49:55" (1/1) ... [2023-08-27 04:49:55,506 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:49:55" (1/1) ... [2023-08-27 04:49:55,522 INFO L138 Inliner]: procedures = 163, calls = 22, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2023-08-27 04:49:55,523 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 04:49:55,523 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 04:49:55,523 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 04:49:55,524 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 04:49:55,531 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:49:55" (1/1) ... [2023-08-27 04:49:55,531 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:49:55" (1/1) ... [2023-08-27 04:49:55,533 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:49:55" (1/1) ... [2023-08-27 04:49:55,533 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:49:55" (1/1) ... [2023-08-27 04:49:55,537 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:49:55" (1/1) ... [2023-08-27 04:49:55,539 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:49:55" (1/1) ... [2023-08-27 04:49:55,540 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:49:55" (1/1) ... [2023-08-27 04:49:55,541 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:49:55" (1/1) ... [2023-08-27 04:49:55,543 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 04:49:55,544 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 04:49:55,544 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 04:49:55,544 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 04:49:55,545 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:49:55" (1/1) ... [2023-08-27 04:49:55,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 04:49:55,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 04:49:55,572 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 04:49:55,605 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 04:49:55,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 04:49:55,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 04:49:55,620 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-27 04:49:55,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 04:49:55,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 04:49:55,621 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-27 04:49:55,621 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-27 04:49:55,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 04:49:55,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 04:49:55,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 04:49:55,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 04:49:55,623 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 04:49:55,724 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 04:49:55,726 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 04:49:55,835 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 04:49:55,841 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 04:49:55,841 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 04:49:55,843 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:49:55 BoogieIcfgContainer [2023-08-27 04:49:55,843 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 04:49:55,845 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 04:49:55,845 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 04:49:55,848 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 04:49:55,848 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 04:49:54" (1/3) ... [2023-08-27 04:49:55,849 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b095113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 04:49:55, skipping insertion in model container [2023-08-27 04:49:55,849 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:49:55" (2/3) ... [2023-08-27 04:49:55,849 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b095113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 04:49:55, skipping insertion in model container [2023-08-27 04:49:55,849 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:49:55" (3/3) ... [2023-08-27 04:49:55,850 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_1_neg.i [2023-08-27 04:49:55,866 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 04:49:55,867 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-27 04:49:55,867 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 04:49:55,909 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-27 04:49:55,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 63 transitions, 134 flow [2023-08-27 04:49:55,973 INFO L124 PetriNetUnfolderBase]: 3/62 cut-off events. [2023-08-27 04:49:55,974 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-27 04:49:55,977 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 04:49:55,977 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 63 transitions, 134 flow [2023-08-27 04:49:55,980 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 49 places, 46 transitions, 95 flow [2023-08-27 04:49:55,982 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 04:49:55,993 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 46 transitions, 95 flow [2023-08-27 04:49:55,999 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 46 transitions, 95 flow [2023-08-27 04:49:56,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 46 transitions, 95 flow [2023-08-27 04:49:56,028 INFO L124 PetriNetUnfolderBase]: 1/46 cut-off events. [2023-08-27 04:49:56,029 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 04:49:56,030 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 04:49:56,031 INFO L119 LiptonReduction]: Number of co-enabled transitions 216 [2023-08-27 04:49:57,928 INFO L134 LiptonReduction]: Checked pairs total: 210 [2023-08-27 04:49:57,928 INFO L136 LiptonReduction]: Total number of compositions: 44 [2023-08-27 04:49:57,945 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 04:49:57,953 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;@57ffb07c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 04:49:57,954 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-08-27 04:49:57,957 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 04:49:57,957 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-08-27 04:49:57,957 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 04:49:57,957 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 04:49:57,958 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 04:49:57,958 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONASSERT, t_funErr0ASSERT_VIOLATIONASSERT] === [2023-08-27 04:49:57,963 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 04:49:57,963 INFO L85 PathProgramCache]: Analyzing trace with hash 237951, now seen corresponding path program 1 times [2023-08-27 04:49:57,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 04:49:57,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872546105] [2023-08-27 04:49:57,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 04:49:57,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 04:49:58,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 04:49:58,097 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 04:49:58,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 04:49:58,129 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 04:49:58,130 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 04:49:58,131 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2023-08-27 04:49:58,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-08-27 04:49:58,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONASSERT (0 of 3 remaining) [2023-08-27 04:49:58,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 04:49:58,134 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 04:49:58,139 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 04:49:58,139 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 04:49:58,153 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 04:49:58 BasicIcfg [2023-08-27 04:49:58,153 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 04:49:58,154 INFO L158 Benchmark]: Toolchain (without parser) took 3163.08ms. Allocated memory is still 360.7MB. Free memory was 310.5MB in the beginning and 326.4MB in the end (delta: -15.9MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 04:49:58,154 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 360.7MB. Free memory is still 337.3MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 04:49:58,155 INFO L158 Benchmark]: CACSL2BoogieTranslator took 470.18ms. Allocated memory is still 360.7MB. Free memory was 309.4MB in the beginning and 290.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-27 04:49:58,155 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.71ms. Allocated memory is still 360.7MB. Free memory was 290.6MB in the beginning and 289.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 04:49:58,156 INFO L158 Benchmark]: Boogie Preprocessor took 19.78ms. Allocated memory is still 360.7MB. Free memory was 289.5MB in the beginning and 287.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 04:49:58,156 INFO L158 Benchmark]: RCFGBuilder took 299.15ms. Allocated memory is still 360.7MB. Free memory was 287.4MB in the beginning and 273.8MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-27 04:49:58,157 INFO L158 Benchmark]: TraceAbstraction took 2308.58ms. Allocated memory is still 360.7MB. Free memory was 273.8MB in the beginning and 326.4MB in the end (delta: -52.6MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 04:49:58,159 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 360.7MB. Free memory is still 337.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 470.18ms. Allocated memory is still 360.7MB. Free memory was 309.4MB in the beginning and 290.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 56.71ms. Allocated memory is still 360.7MB. Free memory was 290.6MB in the beginning and 289.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 19.78ms. Allocated memory is still 360.7MB. Free memory was 289.5MB in the beginning and 287.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 299.15ms. Allocated memory is still 360.7MB. Free memory was 287.4MB in the beginning and 273.8MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 2308.58ms. Allocated memory is still 360.7MB. Free memory was 273.8MB in the beginning and 326.4MB in the end (delta: -52.6MB). There was no memory consumed. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 232]: Unsoundness Warning unspecified type, defaulting to int C: short [232] - GenericResultAtLocation [Line: 233]: Unsoundness Warning unspecified type, defaulting to int C: short [233] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 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 FALSE 1 !(t == 42) [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(!(t == 0)) [L19] COND TRUE 1 !(cond) [L19] CALL 1 reach_error() [L18] COND FALSE 1 !(0) [L18] 1 __assert_fail ("0", "13-privatized_18-first-reads_unknown_1_neg.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [glob1=0, 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: 2.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, 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 04:49:58,178 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...