/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 -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/36-apron_41-threadenter-no-locals_unknown_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 23:02:04,493 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 23:02:04,576 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 [2023-08-26 23:02:04,581 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 23:02:04,582 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 23:02:04,612 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 23:02:04,613 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 23:02:04,613 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 23:02:04,614 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 23:02:04,617 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 23:02:04,617 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 23:02:04,618 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 23:02:04,618 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 23:02:04,619 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 23:02:04,619 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 23:02:04,620 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 23:02:04,620 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 23:02:04,620 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 23:02:04,620 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 23:02:04,620 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 23:02:04,621 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 23:02:04,621 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 23:02:04,622 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 23:02:04,622 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 23:02:04,622 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 23:02:04,623 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 23:02:04,623 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 23:02:04,623 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 23:02:04,623 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 23:02:04,623 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 23:02:04,624 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 23:02:04,625 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 23:02:04,625 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 23:02:04,625 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 23:02:04,625 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 23:02:04,625 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-26 23:02:04,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 23:02:04,961 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 23:02:04,963 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 23:02:04,964 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 23:02:04,964 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 23:02:04,966 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2023-08-26 23:02:06,143 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 23:02:06,489 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 23:02:06,490 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2023-08-26 23:02:06,507 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64ed6e719/be7c6bac11934b08bd262fa3d274dd99/FLAG8228ac7b5 [2023-08-26 23:02:06,522 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64ed6e719/be7c6bac11934b08bd262fa3d274dd99 [2023-08-26 23:02:06,526 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 23:02:06,528 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 23:02:06,530 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 23:02:06,530 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 23:02:06,533 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 23:02:06,534 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 11:02:06" (1/1) ... [2023-08-26 23:02:06,535 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ca87e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:02:06, skipping insertion in model container [2023-08-26 23:02:06,535 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 11:02:06" (1/1) ... [2023-08-26 23:02:06,581 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 23:02:06,871 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 23:02:06,881 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 23:02:06,901 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-26 23:02:06,913 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [233] [2023-08-26 23:02:06,928 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 23:02:06,957 INFO L206 MainTranslator]: Completed translation [2023-08-26 23:02:06,958 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:02:06 WrapperNode [2023-08-26 23:02:06,958 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 23:02:06,959 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 23:02:06,959 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 23:02:06,959 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 23:02:06,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:02:06" (1/1) ... [2023-08-26 23:02:06,981 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:02:06" (1/1) ... [2023-08-26 23:02:06,998 INFO L138 Inliner]: procedures = 162, calls = 13, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 39 [2023-08-26 23:02:06,998 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 23:02:06,999 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 23:02:06,999 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 23:02:06,999 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 23:02:07,005 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:02:06" (1/1) ... [2023-08-26 23:02:07,006 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:02:06" (1/1) ... [2023-08-26 23:02:07,007 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:02:06" (1/1) ... [2023-08-26 23:02:07,008 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:02:06" (1/1) ... [2023-08-26 23:02:07,011 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:02:06" (1/1) ... [2023-08-26 23:02:07,013 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:02:06" (1/1) ... [2023-08-26 23:02:07,014 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:02:06" (1/1) ... [2023-08-26 23:02:07,014 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:02:06" (1/1) ... [2023-08-26 23:02:07,016 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 23:02:07,017 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 23:02:07,017 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 23:02:07,017 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 23:02:07,018 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:02:06" (1/1) ... [2023-08-26 23:02:07,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 23:02:07,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 23:02:07,049 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) [2023-08-26 23:02:07,061 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 [2023-08-26 23:02:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 23:02:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 23:02:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 23:02:07,087 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-26 23:02:07,087 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-26 23:02:07,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 23:02:07,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 23:02:07,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 23:02:07,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 23:02:07,089 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 23:02:07,212 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 23:02:07,214 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 23:02:07,297 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 23:02:07,302 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 23:02:07,302 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 23:02:07,303 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 11:02:07 BoogieIcfgContainer [2023-08-26 23:02:07,304 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 23:02:07,305 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 23:02:07,306 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 23:02:07,308 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 23:02:07,308 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 11:02:06" (1/3) ... [2023-08-26 23:02:07,309 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4610221f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 11:02:07, skipping insertion in model container [2023-08-26 23:02:07,309 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:02:06" (2/3) ... [2023-08-26 23:02:07,309 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4610221f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 11:02:07, skipping insertion in model container [2023-08-26 23:02:07,309 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 11:02:07" (3/3) ... [2023-08-26 23:02:07,310 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_pos.i [2023-08-26 23:02:07,326 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 23:02:07,326 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-26 23:02:07,326 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 23:02:07,369 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 23:02:07,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 42 transitions, 89 flow [2023-08-26 23:02:07,454 INFO L124 PetriNetUnfolderBase]: 2/41 cut-off events. [2023-08-26 23:02:07,454 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 23:02:07,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 41 events. 2/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 26 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 26. Up to 2 conditions per place. [2023-08-26 23:02:07,458 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 42 transitions, 89 flow [2023-08-26 23:02:07,462 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 34 transitions, 71 flow [2023-08-26 23:02:07,465 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 23:02:07,477 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 34 transitions, 71 flow [2023-08-26 23:02:07,482 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 34 transitions, 71 flow [2023-08-26 23:02:07,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 34 transitions, 71 flow [2023-08-26 23:02:07,505 INFO L124 PetriNetUnfolderBase]: 0/34 cut-off events. [2023-08-26 23:02:07,505 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 23:02:07,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 34 events. 0/34 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 13 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-26 23:02:07,506 INFO L119 LiptonReduction]: Number of co-enabled transitions 168 [2023-08-26 23:02:08,572 INFO L134 LiptonReduction]: Checked pairs total: 106 [2023-08-26 23:02:08,573 INFO L136 LiptonReduction]: Total number of compositions: 30 [2023-08-26 23:02:08,583 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 23:02:08,590 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;@2480f3bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 23:02:08,590 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-08-26 23:02:08,592 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 23:02:08,592 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-08-26 23:02:08,592 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 23:02:08,592 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:02:08,593 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-26 23:02:08,593 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONASSERT, t_funErr0ASSERT_VIOLATIONASSERT] === [2023-08-26 23:02:08,597 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:02:08,598 INFO L85 PathProgramCache]: Analyzing trace with hash 170857, now seen corresponding path program 1 times [2023-08-26 23:02:08,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:02:08,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359231067] [2023-08-26 23:02:08,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:02:08,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:02:08,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 23:02:08,688 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 23:02:08,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 23:02:08,716 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 23:02:08,717 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 23:02:08,718 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2023-08-26 23:02:08,719 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-08-26 23:02:08,720 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONASSERT (0 of 3 remaining) [2023-08-26 23:02:08,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 23:02:08,720 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 23:02:08,726 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 23:02:08,726 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 23:02:08,739 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 11:02:08 BasicIcfg [2023-08-26 23:02:08,739 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 23:02:08,740 INFO L158 Benchmark]: Toolchain (without parser) took 2212.24ms. Allocated memory is still 377.5MB. Free memory was 352.8MB in the beginning and 297.3MB in the end (delta: 55.5MB). Peak memory consumption was 53.8MB. Max. memory is 16.0GB. [2023-08-26 23:02:08,740 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 377.5MB. Free memory is still 354.8MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 23:02:08,741 INFO L158 Benchmark]: CACSL2BoogieTranslator took 428.14ms. Allocated memory is still 377.5MB. Free memory was 352.4MB in the beginning and 333.9MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-26 23:02:08,741 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.33ms. Allocated memory is still 377.5MB. Free memory was 333.9MB in the beginning and 332.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 23:02:08,742 INFO L158 Benchmark]: Boogie Preprocessor took 17.31ms. Allocated memory is still 377.5MB. Free memory was 332.2MB in the beginning and 331.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 23:02:08,742 INFO L158 Benchmark]: RCFGBuilder took 286.85ms. Allocated memory is still 377.5MB. Free memory was 331.0MB in the beginning and 320.1MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-26 23:02:08,743 INFO L158 Benchmark]: TraceAbstraction took 1433.79ms. Allocated memory is still 377.5MB. Free memory was 319.2MB in the beginning and 297.3MB in the end (delta: 21.9MB). Peak memory consumption was 20.2MB. Max. memory is 16.0GB. [2023-08-26 23:02:08,745 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 377.5MB. Free memory is still 354.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 428.14ms. Allocated memory is still 377.5MB. Free memory was 352.4MB in the beginning and 333.9MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 39.33ms. Allocated memory is still 377.5MB. Free memory was 333.9MB in the beginning and 332.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 17.31ms. Allocated memory is still 377.5MB. Free memory was 332.2MB in the beginning and 331.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 286.85ms. Allocated memory is still 377.5MB. Free memory was 331.0MB in the beginning and 320.1MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * TraceAbstraction took 1433.79ms. Allocated memory is still 377.5MB. Free memory was 319.2MB in the beginning and 297.3MB in the end (delta: 21.9MB). Peak memory consumption was 20.2MB. 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: 1.1s, 38 PlacesBefore, 8 PlacesAfterwards, 34 TransitionsBefore, 4 TransitionsAfterwards, 168 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 30 TotalNumberOfCompositions, 106 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 106, independent: 106, independent conditional: 0, independent unconditional: 106, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 83, independent: 83, independent conditional: 0, independent unconditional: 83, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 106, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 83, unknown conditional: 0, unknown unconditional: 83] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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: [L688] 0 int x = 3; [L689] 0 pthread_t id; [L690] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, x=3] [L683] 1 int x = __VERIFIER_nondet_int(); [L684] CALL 1 __VERIFIER_assert(x == 3) [L19] COND TRUE 1 !(cond) [L19] CALL 1 reach_error() [L18] COND FALSE 1 !(0) [L18] 1 __assert_fail ("0", "36-apron_41-threadenter-no-locals_unknown_1_pos.c", 3, __extension__ __PRETTY_FUNCTION__) - UnprovableResult [Line: 690]: 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, 60 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: 1.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred 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! [2023-08-26 23:02:08,759 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...