/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_41-traces-ex-7_unknown_1_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 04:52:30,368 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 04:52:30,422 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 04:52:30,428 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 04:52:30,428 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 04:52:30,452 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 04:52:30,453 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 04:52:30,453 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 04:52:30,454 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 04:52:30,456 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 04:52:30,456 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 04:52:30,456 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 04:52:30,457 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 04:52:30,458 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 04:52:30,458 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 04:52:30,458 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 04:52:30,458 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 04:52:30,458 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 04:52:30,458 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 04:52:30,459 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 04:52:30,459 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 04:52:30,461 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 04:52:30,461 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 04:52:30,461 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 04:52:30,462 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 04:52:30,462 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 04:52:30,462 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 04:52:30,462 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 04:52:30,462 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 04:52:30,462 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 04:52:30,463 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 04:52:30,463 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 04:52:30,463 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 04:52:30,464 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 04:52:30,464 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 04:52:30,464 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 04:52:30,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 04:52:30,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 04:52:30,753 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 04:52:30,753 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 04:52:30,754 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 04:52:30,754 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2023-08-27 04:52:31,663 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 04:52:31,842 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 04:52:31,842 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2023-08-27 04:52:31,853 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b93312de/12ba55f08c6f474b9df6a0cb5f92a1f0/FLAG15d579266 [2023-08-27 04:52:31,861 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b93312de/12ba55f08c6f474b9df6a0cb5f92a1f0 [2023-08-27 04:52:31,863 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 04:52:31,864 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 04:52:31,864 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 04:52:31,864 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 04:52:31,866 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 04:52:31,866 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:52:31" (1/1) ... [2023-08-27 04:52:31,867 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@147d57de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:52:31, skipping insertion in model container [2023-08-27 04:52:31,867 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:52:31" (1/1) ... [2023-08-27 04:52:31,888 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 04:52:32,091 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 04:52:32,101 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 04:52:32,126 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [231] [2023-08-27 04:52:32,128 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-27 04:52:32,146 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 04:52:32,169 INFO L206 MainTranslator]: Completed translation [2023-08-27 04:52:32,169 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:52:32 WrapperNode [2023-08-27 04:52:32,169 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 04:52:32,170 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 04:52:32,170 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 04:52:32,170 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 04:52:32,174 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:52:32" (1/1) ... [2023-08-27 04:52:32,196 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:52:32" (1/1) ... [2023-08-27 04:52:32,211 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 51 [2023-08-27 04:52:32,212 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 04:52:32,213 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 04:52:32,213 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 04:52:32,213 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 04:52:32,218 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:52:32" (1/1) ... [2023-08-27 04:52:32,218 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:52:32" (1/1) ... [2023-08-27 04:52:32,223 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:52:32" (1/1) ... [2023-08-27 04:52:32,223 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:52:32" (1/1) ... [2023-08-27 04:52:32,235 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:52:32" (1/1) ... [2023-08-27 04:52:32,236 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:52:32" (1/1) ... [2023-08-27 04:52:32,241 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:52:32" (1/1) ... [2023-08-27 04:52:32,242 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:52:32" (1/1) ... [2023-08-27 04:52:32,243 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 04:52:32,244 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 04:52:32,244 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 04:52:32,244 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 04:52:32,244 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:52:32" (1/1) ... [2023-08-27 04:52:32,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 04:52:32,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 04:52:32,271 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 04:52:32,292 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 04:52:32,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 04:52:32,304 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-27 04:52:32,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 04:52:32,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 04:52:32,305 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-27 04:52:32,305 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-27 04:52:32,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 04:52:32,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 04:52:32,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 04:52:32,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 04:52:32,306 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 04:52:32,384 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 04:52:32,385 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 04:52:32,484 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 04:52:32,492 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 04:52:32,492 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 04:52:32,493 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:52:32 BoogieIcfgContainer [2023-08-27 04:52:32,493 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 04:52:32,494 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 04:52:32,495 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 04:52:32,501 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 04:52:32,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 04:52:31" (1/3) ... [2023-08-27 04:52:32,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@705fe5d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 04:52:32, skipping insertion in model container [2023-08-27 04:52:32,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:52:32" (2/3) ... [2023-08-27 04:52:32,502 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@705fe5d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 04:52:32, skipping insertion in model container [2023-08-27 04:52:32,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:52:32" (3/3) ... [2023-08-27 04:52:32,503 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_neg.i [2023-08-27 04:52:32,514 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 04:52:32,514 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-27 04:52:32,514 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 04:52:32,562 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 04:52:32,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 64 transitions, 133 flow [2023-08-27 04:52:32,634 INFO L124 PetriNetUnfolderBase]: 2/63 cut-off events. [2023-08-27 04:52:32,634 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 04:52:32,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 63 events. 2/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 33 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 34. Up to 2 conditions per place. [2023-08-27 04:52:32,637 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 64 transitions, 133 flow [2023-08-27 04:52:32,639 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 53 transitions, 109 flow [2023-08-27 04:52:32,643 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 04:52:32,654 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 53 transitions, 109 flow [2023-08-27 04:52:32,655 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 53 transitions, 109 flow [2023-08-27 04:52:32,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 53 transitions, 109 flow [2023-08-27 04:52:32,674 INFO L124 PetriNetUnfolderBase]: 0/53 cut-off events. [2023-08-27 04:52:32,674 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 04:52:32,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 53 events. 0/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 19 event pairs, 0 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-27 04:52:32,675 INFO L119 LiptonReduction]: Number of co-enabled transitions 280 [2023-08-27 04:52:34,370 INFO L134 LiptonReduction]: Checked pairs total: 632 [2023-08-27 04:52:34,370 INFO L136 LiptonReduction]: Total number of compositions: 42 [2023-08-27 04:52:34,385 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 04:52:34,389 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;@d9d538, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 04:52:34,389 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-27 04:52:34,391 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 04:52:34,391 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2023-08-27 04:52:34,392 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 04:52:34,392 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 04:52:34,392 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-27 04:52:34,392 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 04:52:34,395 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 04:52:34,395 INFO L85 PathProgramCache]: Analyzing trace with hash -2120741536, now seen corresponding path program 1 times [2023-08-27 04:52:34,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 04:52:34,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989787143] [2023-08-27 04:52:34,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 04:52:34,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 04:52:34,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 04:52:34,494 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 04:52:34,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 04:52:34,551 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 04:52:34,552 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 04:52:34,553 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (1 of 2 remaining) [2023-08-27 04:52:34,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-27 04:52:34,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 04:52:34,555 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 04:52:34,558 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 04:52:34,558 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 04:52:34,569 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 04:52:34 BasicIcfg [2023-08-27 04:52:34,570 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 04:52:34,570 INFO L158 Benchmark]: Toolchain (without parser) took 2706.48ms. Allocated memory was 343.9MB in the beginning and 486.5MB in the end (delta: 142.6MB). Free memory was 319.3MB in the beginning and 326.1MB in the end (delta: -6.8MB). Peak memory consumption was 137.9MB. Max. memory is 16.0GB. [2023-08-27 04:52:34,571 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 343.9MB. Free memory was 322.2MB in the beginning and 322.1MB in the end (delta: 86.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 04:52:34,571 INFO L158 Benchmark]: CACSL2BoogieTranslator took 305.02ms. Allocated memory is still 343.9MB. Free memory was 318.8MB in the beginning and 299.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-27 04:52:34,571 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.98ms. Allocated memory is still 343.9MB. Free memory was 299.9MB in the beginning and 298.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 04:52:34,572 INFO L158 Benchmark]: Boogie Preprocessor took 30.43ms. Allocated memory is still 343.9MB. Free memory was 298.4MB in the beginning and 296.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 04:52:34,572 INFO L158 Benchmark]: RCFGBuilder took 249.57ms. Allocated memory is still 343.9MB. Free memory was 296.8MB in the beginning and 284.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-27 04:52:34,572 INFO L158 Benchmark]: TraceAbstraction took 2075.10ms. Allocated memory was 343.9MB in the beginning and 486.5MB in the end (delta: 142.6MB). Free memory was 283.2MB in the beginning and 326.1MB in the end (delta: -43.0MB). Peak memory consumption was 100.2MB. Max. memory is 16.0GB. [2023-08-27 04:52:34,574 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 343.9MB. Free memory was 322.2MB in the beginning and 322.1MB in the end (delta: 86.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 305.02ms. Allocated memory is still 343.9MB. Free memory was 318.8MB in the beginning and 299.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 41.98ms. Allocated memory is still 343.9MB. Free memory was 299.9MB in the beginning and 298.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 30.43ms. Allocated memory is still 343.9MB. Free memory was 298.4MB in the beginning and 296.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 249.57ms. Allocated memory is still 343.9MB. Free memory was 296.8MB in the beginning and 284.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 2075.10ms. Allocated memory was 343.9MB in the beginning and 486.5MB in the end (delta: 142.6MB). Free memory was 283.2MB in the beginning and 326.1MB in the end (delta: -43.0MB). Peak memory consumption was 100.2MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 231]: Unsoundness Warning unspecified type, defaulting to int C: short [231] - GenericResultAtLocation [Line: 232]: Unsoundness Warning unspecified type, defaulting to int C: short [232] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.7s, 57 PlacesBefore, 15 PlacesAfterwards, 53 TransitionsBefore, 11 TransitionsAfterwards, 280 CoEnabledTransitionPairs, 6 FixpointIterations, 27 TrivialSequentialCompositions, 15 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 42 TotalNumberOfCompositions, 632 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 315, independent: 227, independent conditional: 0, independent unconditional: 227, dependent: 88, dependent conditional: 0, dependent unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 152, independent: 137, independent conditional: 0, independent unconditional: 137, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 315, independent: 90, independent conditional: 0, independent unconditional: 90, dependent: 73, dependent conditional: 0, dependent unconditional: 73, unknown: 152, unknown conditional: 0, unknown unconditional: 152] , Statistics on independence cache: Total cache size (in pairs): 13, Positive cache size: 6, Positive conditional cache size: 0, Positive unconditional cache size: 6, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, 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: [L681] 0 int g = 0; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L693] 0 pthread_t id; [L694] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, D={4:0}, arg={0:0}, g=0, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L698] CALL 0 __VERIFIER_assert(!(g == 0)) [L19] COND TRUE 0 !(cond) [L19] CALL 0 reach_error() [L18] COND FALSE 0 !(0) [L18] 0 __assert_fail ("0", "13-privatized_41-traces-ex-7_unknown_1_neg.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [A={3:0}, D={4:0}, arg={0:0}, g=0] - UnprovableResult [Line: 694]: 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, 75 locations, 2 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: 2.0s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 6 NumberOfCodeBlocks, 6 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 04:52:34,597 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...