/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_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 04:50:00,529 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 04:50:00,612 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 04:50:00,617 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 04:50:00,618 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 04:50:00,650 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 04:50:00,651 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 04:50:00,656 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 04:50:00,657 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 04:50:00,660 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 04:50:00,661 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 04:50:00,661 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 04:50:00,661 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 04:50:00,662 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 04:50:00,662 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 04:50:00,663 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 04:50:00,663 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 04:50:00,663 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 04:50:00,663 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 04:50:00,664 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 04:50:00,664 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 04:50:00,665 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 04:50:00,665 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 04:50:00,665 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 04:50:00,666 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 04:50:00,666 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 04:50:00,666 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 04:50:00,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 04:50:00,667 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 04:50:00,667 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 04:50:00,668 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 04:50:00,668 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 04:50:00,668 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 04:50:00,668 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 04:50:00,668 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 04:50:00,669 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 04:50:01,012 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 04:50:01,040 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 04:50:01,042 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 04:50:01,043 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 04:50:01,044 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 04:50:01,046 INFO L431 ainManager$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_pos.i [2023-08-27 04:50:02,291 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 04:50:02,540 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 04:50:02,540 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i [2023-08-27 04:50:02,553 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dda8405a5/fae3e3f5e3864c41afdd984f399fb092/FLAG4b4f2bda6 [2023-08-27 04:50:02,565 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dda8405a5/fae3e3f5e3864c41afdd984f399fb092 [2023-08-27 04:50:02,568 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 04:50:02,569 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 04:50:02,570 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 04:50:02,570 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 04:50:02,572 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 04:50:02,573 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:50:02" (1/1) ... [2023-08-27 04:50:02,573 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cd8fb50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:02, skipping insertion in model container [2023-08-27 04:50:02,574 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:50:02" (1/1) ... [2023-08-27 04:50:02,606 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 04:50:02,897 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 04:50:02,909 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 04:50:02,940 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-27 04:50:02,941 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [233] [2023-08-27 04:50:02,958 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 04:50:02,999 INFO L206 MainTranslator]: Completed translation [2023-08-27 04:50:03,000 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:02 WrapperNode [2023-08-27 04:50:03,000 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 04:50:03,001 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 04:50:03,001 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 04:50:03,001 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 04:50:03,007 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:02" (1/1) ... [2023-08-27 04:50:03,035 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:02" (1/1) ... [2023-08-27 04:50:03,058 INFO L138 Inliner]: procedures = 163, calls = 22, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2023-08-27 04:50:03,059 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 04:50:03,060 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 04:50:03,060 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 04:50:03,060 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 04:50:03,067 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:02" (1/1) ... [2023-08-27 04:50:03,067 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:02" (1/1) ... [2023-08-27 04:50:03,073 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:02" (1/1) ... [2023-08-27 04:50:03,073 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:02" (1/1) ... [2023-08-27 04:50:03,086 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:02" (1/1) ... [2023-08-27 04:50:03,087 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:02" (1/1) ... [2023-08-27 04:50:03,089 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:02" (1/1) ... [2023-08-27 04:50:03,089 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:02" (1/1) ... [2023-08-27 04:50:03,091 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 04:50:03,092 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 04:50:03,092 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 04:50:03,092 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 04:50:03,092 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:02" (1/1) ... [2023-08-27 04:50:03,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 04:50:03,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 04:50:03,126 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 04:50:03,151 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 04:50:03,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 04:50:03,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 04:50:03,165 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-27 04:50:03,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 04:50:03,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 04:50:03,166 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-27 04:50:03,166 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-27 04:50:03,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 04:50:03,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 04:50:03,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 04:50:03,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 04:50:03,167 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 04:50:03,308 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 04:50:03,310 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 04:50:03,478 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 04:50:03,484 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 04:50:03,484 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 04:50:03,486 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:50:03 BoogieIcfgContainer [2023-08-27 04:50:03,486 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 04:50:03,488 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 04:50:03,488 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 04:50:03,490 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 04:50:03,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 04:50:02" (1/3) ... [2023-08-27 04:50:03,491 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a1a7ccb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 04:50:03, skipping insertion in model container [2023-08-27 04:50:03,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:50:02" (2/3) ... [2023-08-27 04:50:03,492 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a1a7ccb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 04:50:03, skipping insertion in model container [2023-08-27 04:50:03,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:50:03" (3/3) ... [2023-08-27 04:50:03,493 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_1_pos.i [2023-08-27 04:50:03,507 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 04:50:03,507 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-27 04:50:03,507 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 04:50:03,556 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-27 04:50:03,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 63 transitions, 134 flow [2023-08-27 04:50:03,614 INFO L124 PetriNetUnfolderBase]: 3/62 cut-off events. [2023-08-27 04:50:03,614 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-27 04:50:03,617 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 04:50:03,618 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 63 transitions, 134 flow [2023-08-27 04:50:03,621 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 49 places, 46 transitions, 95 flow [2023-08-27 04:50:03,624 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 04:50:03,632 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 46 transitions, 95 flow [2023-08-27 04:50:03,634 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 46 transitions, 95 flow [2023-08-27 04:50:03,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 46 transitions, 95 flow [2023-08-27 04:50:03,648 INFO L124 PetriNetUnfolderBase]: 1/46 cut-off events. [2023-08-27 04:50:03,648 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 04:50:03,649 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 04:50:03,650 INFO L119 LiptonReduction]: Number of co-enabled transitions 216 [2023-08-27 04:50:05,493 INFO L134 LiptonReduction]: Checked pairs total: 210 [2023-08-27 04:50:05,493 INFO L136 LiptonReduction]: Total number of compositions: 44 [2023-08-27 04:50:05,505 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 04:50:05,510 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;@43181d42, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 04:50:05,510 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-08-27 04:50:05,512 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 04:50:05,513 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-08-27 04:50:05,513 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 04:50:05,513 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 04:50:05,514 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 04:50:05,514 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONASSERT, t_funErr0ASSERT_VIOLATIONASSERT] === [2023-08-27 04:50:05,518 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 04:50:05,519 INFO L85 PathProgramCache]: Analyzing trace with hash 237951, now seen corresponding path program 1 times [2023-08-27 04:50:05,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 04:50:05,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848374317] [2023-08-27 04:50:05,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 04:50:05,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 04:50:05,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 04:50:05,631 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 04:50:05,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 04:50:05,667 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 04:50:05,669 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 04:50:05,670 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2023-08-27 04:50:05,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-08-27 04:50:05,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONASSERT (0 of 3 remaining) [2023-08-27 04:50:05,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 04:50:05,672 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 04:50:05,678 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 04:50:05,678 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 04:50:05,693 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 04:50:05 BasicIcfg [2023-08-27 04:50:05,693 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 04:50:05,694 INFO L158 Benchmark]: Toolchain (without parser) took 3125.02ms. Allocated memory was 362.8MB in the beginning and 507.5MB in the end (delta: 144.7MB). Free memory was 338.0MB in the beginning and 379.7MB in the end (delta: -41.7MB). Peak memory consumption was 104.6MB. Max. memory is 16.0GB. [2023-08-27 04:50:05,694 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 362.8MB. Free memory was 340.5MB in the beginning and 340.4MB in the end (delta: 94.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 04:50:05,695 INFO L158 Benchmark]: CACSL2BoogieTranslator took 430.35ms. Allocated memory is still 362.8MB. Free memory was 338.0MB in the beginning and 319.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-27 04:50:05,695 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.71ms. Allocated memory is still 362.8MB. Free memory was 319.1MB in the beginning and 317.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 04:50:05,696 INFO L158 Benchmark]: Boogie Preprocessor took 31.44ms. Allocated memory is still 362.8MB. Free memory was 317.0MB in the beginning and 315.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 04:50:05,696 INFO L158 Benchmark]: RCFGBuilder took 394.11ms. Allocated memory is still 362.8MB. Free memory was 315.5MB in the beginning and 302.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-27 04:50:05,697 INFO L158 Benchmark]: TraceAbstraction took 2205.36ms. Allocated memory was 362.8MB in the beginning and 507.5MB in the end (delta: 144.7MB). Free memory was 302.4MB in the beginning and 379.7MB in the end (delta: -77.4MB). Peak memory consumption was 68.9MB. Max. memory is 16.0GB. [2023-08-27 04:50:05,699 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 362.8MB. Free memory was 340.5MB in the beginning and 340.4MB in the end (delta: 94.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 430.35ms. Allocated memory is still 362.8MB. Free memory was 338.0MB in the beginning and 319.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 57.71ms. Allocated memory is still 362.8MB. Free memory was 319.1MB in the beginning and 317.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 31.44ms. Allocated memory is still 362.8MB. Free memory was 317.0MB in the beginning and 315.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 394.11ms. Allocated memory is still 362.8MB. Free memory was 315.5MB in the beginning and 302.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 2205.36ms. Allocated memory was 362.8MB in the beginning and 507.5MB in the end (delta: 144.7MB). Free memory was 302.4MB in the beginning and 379.7MB in the end (delta: -77.4MB). Peak memory consumption was 68.9MB. 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 TRUE 1 t == 42 [L688] 1 glob1 = 1 [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_pos.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: 2.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, 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 04:50:05,720 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...