/usr/bin/java -Xmx8000000000 -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-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 16:59:05,990 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 16:59:05,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 16:59:06,031 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-12-06 16:59:06,049 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 16:59:06,049 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 16:59:06,050 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 16:59:06,051 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 16:59:06,052 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 16:59:06,052 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 16:59:06,054 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 16:59:06,057 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 16:59:06,058 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 16:59:06,060 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 16:59:06,061 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 16:59:06,062 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 16:59:06,065 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 16:59:06,065 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 16:59:06,065 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 16:59:06,066 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 16:59:06,066 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 16:59:06,067 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-12-06 16:59:06,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 16:59:06,076 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 16:59:06,077 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 16:59:06,079 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-06 16:59:06,109 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 16:59:06,109 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 16:59:06,111 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 16:59:06,111 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 16:59:06,112 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 16:59:06,112 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 16:59:06,112 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 16:59:06,113 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 16:59:06,113 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 16:59:06,113 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 16:59:06,114 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 16:59:06,114 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 16:59:06,114 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 16:59:06,114 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 16:59:06,114 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 16:59:06,114 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 16:59:06,114 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 16:59:06,115 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 16:59:06,115 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 16:59:06,115 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 16:59:06,115 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 16:59:06,115 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 16:59:06,115 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 16:59:06,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:59:06,116 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 16:59:06,116 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 16:59:06,116 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 16:59:06,116 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 16:59:06,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 16:59:06,116 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 16:59:06,116 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 16:59:06,117 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 16:59:06,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 16:59:06,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 16:59:06,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 16:59:06,447 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 16:59:06,448 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 16:59:06,449 INFO L432 ainManager$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 [2022-12-06 16:59:07,506 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 16:59:07,712 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 16:59:07,712 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2022-12-06 16:59:07,736 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86a1bb572/fd98b3cfe20e4cac8e69fffbae534ac4/FLAG91c25b89e [2022-12-06 16:59:07,752 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86a1bb572/fd98b3cfe20e4cac8e69fffbae534ac4 [2022-12-06 16:59:07,754 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 16:59:07,756 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 16:59:07,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 16:59:07,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 16:59:07,762 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 16:59:07,763 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:59:07" (1/1) ... [2022-12-06 16:59:07,764 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f500a2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:07, skipping insertion in model container [2022-12-06 16:59:07,764 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:59:07" (1/1) ... [2022-12-06 16:59:07,770 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 16:59:07,813 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 16:59:07,979 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i[1102,1115] [2022-12-06 16:59:08,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:59:08,146 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 16:59:08,159 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i[1102,1115] [2022-12-06 16:59:08,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:59:08,225 INFO L208 MainTranslator]: Completed translation [2022-12-06 16:59:08,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:08 WrapperNode [2022-12-06 16:59:08,226 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 16:59:08,227 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 16:59:08,227 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 16:59:08,227 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 16:59:08,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:08" (1/1) ... [2022-12-06 16:59:08,256 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:08" (1/1) ... [2022-12-06 16:59:08,276 INFO L138 Inliner]: procedures = 162, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-12-06 16:59:08,277 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 16:59:08,278 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 16:59:08,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 16:59:08,278 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 16:59:08,285 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:08" (1/1) ... [2022-12-06 16:59:08,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:08" (1/1) ... [2022-12-06 16:59:08,288 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:08" (1/1) ... [2022-12-06 16:59:08,288 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:08" (1/1) ... [2022-12-06 16:59:08,291 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:08" (1/1) ... [2022-12-06 16:59:08,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:08" (1/1) ... [2022-12-06 16:59:08,293 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:08" (1/1) ... [2022-12-06 16:59:08,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:08" (1/1) ... [2022-12-06 16:59:08,296 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 16:59:08,300 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 16:59:08,300 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 16:59:08,300 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 16:59:08,301 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:08" (1/1) ... [2022-12-06 16:59:08,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:59:08,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:59:08,333 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) [2022-12-06 16:59:08,342 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 [2022-12-06 16:59:08,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 16:59:08,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 16:59:08,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 16:59:08,371 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-06 16:59:08,371 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-06 16:59:08,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 16:59:08,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 16:59:08,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 16:59:08,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 16:59:08,374 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 16:59:08,502 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 16:59:08,504 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 16:59:08,670 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 16:59:08,675 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 16:59:08,675 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 16:59:08,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:59:08 BoogieIcfgContainer [2022-12-06 16:59:08,677 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 16:59:08,678 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 16:59:08,679 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 16:59:08,681 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 16:59:08,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:59:07" (1/3) ... [2022-12-06 16:59:08,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44670262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:59:08, skipping insertion in model container [2022-12-06 16:59:08,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:08" (2/3) ... [2022-12-06 16:59:08,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44670262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:59:08, skipping insertion in model container [2022-12-06 16:59:08,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:59:08" (3/3) ... [2022-12-06 16:59:08,691 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_pos.i [2022-12-06 16:59:08,711 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 16:59:08,711 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 16:59:08,711 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 16:59:08,774 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-06 16:59:08,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 37 transitions, 79 flow [2022-12-06 16:59:08,849 INFO L130 PetriNetUnfolder]: 1/36 cut-off events. [2022-12-06 16:59:08,849 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:59:08,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 36 events. 1/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 20 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2022-12-06 16:59:08,855 INFO L82 GeneralOperation]: Start removeDead. Operand has 40 places, 37 transitions, 79 flow [2022-12-06 16:59:08,859 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 31 transitions, 65 flow [2022-12-06 16:59:08,873 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 16:59:08,880 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;@4487c3d8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 16:59:08,881 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-06 16:59:08,906 INFO L130 PetriNetUnfolder]: 0/30 cut-off events. [2022-12-06 16:59:08,906 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:59:08,906 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:59:08,907 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:59:08,908 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-06 16:59:08,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:59:08,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1900788141, now seen corresponding path program 1 times [2022-12-06 16:59:08,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:59:08,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438224774] [2022-12-06 16:59:08,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:59:08,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:59:09,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 16:59:09,062 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-06 16:59:09,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 16:59:09,117 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-06 16:59:09,119 INFO L373 BasicCegarLoop]: Counterexample is feasible [2022-12-06 16:59:09,120 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-06 16:59:09,122 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-06 16:59:09,123 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-12-06 16:59:09,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 16:59:09,124 INFO L458 BasicCegarLoop]: Path program histogram: [1] [2022-12-06 16:59:09,130 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 16:59:09,130 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 16:59:09,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:59:09 BasicIcfg [2022-12-06 16:59:09,168 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 16:59:09,169 INFO L158 Benchmark]: Toolchain (without parser) took 1413.05ms. Allocated memory is still 183.5MB. Free memory was 142.8MB in the beginning and 87.1MB in the end (delta: 55.7MB). Peak memory consumption was 55.6MB. Max. memory is 8.0GB. [2022-12-06 16:59:09,169 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 183.5MB. Free memory was 159.9MB in the beginning and 159.9MB in the end (delta: 75.5kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 16:59:09,170 INFO L158 Benchmark]: CACSL2BoogieTranslator took 467.03ms. Allocated memory is still 183.5MB. Free memory was 142.6MB in the beginning and 124.3MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-06 16:59:09,170 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.95ms. Allocated memory is still 183.5MB. Free memory was 124.3MB in the beginning and 122.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 16:59:09,171 INFO L158 Benchmark]: Boogie Preprocessor took 18.24ms. Allocated memory is still 183.5MB. Free memory was 122.2MB in the beginning and 121.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 16:59:09,171 INFO L158 Benchmark]: RCFGBuilder took 376.90ms. Allocated memory is still 183.5MB. Free memory was 121.1MB in the beginning and 109.6MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-12-06 16:59:09,172 INFO L158 Benchmark]: TraceAbstraction took 489.59ms. Allocated memory is still 183.5MB. Free memory was 109.1MB in the beginning and 87.1MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2022-12-06 16:59:09,174 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 183.5MB. Free memory was 159.9MB in the beginning and 159.9MB in the end (delta: 75.5kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 467.03ms. Allocated memory is still 183.5MB. Free memory was 142.6MB in the beginning and 124.3MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 49.95ms. Allocated memory is still 183.5MB. Free memory was 124.3MB in the beginning and 122.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.24ms. Allocated memory is still 183.5MB. Free memory was 122.2MB in the beginning and 121.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 376.90ms. Allocated memory is still 183.5MB. Free memory was 121.1MB in the beginning and 109.6MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 489.59ms. Allocated memory is still 183.5MB. Free memory was 109.1MB in the beginning and 87.1MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L688] 0 int x = 3; VAL [x=3] [L689] 0 pthread_t id; VAL [id={3:0}, x=3] [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(); VAL [__VERIFIER_nondet_int()=0, arg={0:0}, arg={0:0}, x=0] [L684] CALL 1 __VERIFIER_assert(x == 3) [L19] COND TRUE 1 !(cond) VAL [\old(cond)=0, cond=0] [L19] 1 reach_error() VAL [\old(cond)=0, cond=0] - 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, 52 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: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred 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, 24 NumberOfCodeBlocks, 24 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! [2022-12-06 16:59:09,194 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...