/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-3902331-m [2022-09-20 22:38:23,207 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-20 22:38:23,209 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-20 22:38:23,242 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-20 22:38:23,242 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-20 22:38:23,244 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-20 22:38:23,246 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-20 22:38:23,248 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-20 22:38:23,249 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-20 22:38:23,253 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-20 22:38:23,254 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-20 22:38:23,255 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-20 22:38:23,256 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-20 22:38:23,257 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-20 22:38:23,258 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-20 22:38:23,260 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-20 22:38:23,261 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-20 22:38:23,261 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-20 22:38:23,263 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-20 22:38:23,266 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-20 22:38:23,267 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-20 22:38:23,267 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-20 22:38:23,269 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-20 22:38:23,270 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-20 22:38:23,274 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-20 22:38:23,279 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-20 22:38:23,280 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-20 22:38:23,280 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-20 22:38:23,285 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 [2022-09-20 22:38:23,315 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-20 22:38:23,315 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-20 22:38:23,317 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-20 22:38:23,317 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-20 22:38:23,317 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-20 22:38:23,317 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-20 22:38:23,317 INFO L138 SettingsManager]: * Use SBE=true [2022-09-20 22:38:23,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-20 22:38:23,318 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-20 22:38:23,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-20 22:38:23,319 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-20 22:38:23,319 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-20 22:38:23,319 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-20 22:38:23,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-20 22:38:23,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-20 22:38:23,319 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-20 22:38:23,320 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-20 22:38:23,320 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-20 22:38:23,320 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-20 22:38:23,320 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-20 22:38:23,320 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-20 22:38:23,320 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-20 22:38:23,320 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-20 22:38:23,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 22:38:23,321 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-20 22:38:23,321 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-20 22:38:23,322 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-20 22:38:23,322 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-20 22:38:23,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-20 22:38:23,323 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-20 22:38:23,323 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-20 22:38:23,323 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-20 22:38:23,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-20 22:38:23,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-20 22:38:23,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-20 22:38:23,505 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-20 22:38:23,505 INFO L275 PluginConnector]: CDTParser initialized [2022-09-20 22:38:23,509 INFO L432 ainManager$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_neg.i [2022-09-20 22:38:23,584 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6755f53bd/0f1fcd44e6544d8e8873a6635368ddef/FLAG3f7175ac5 [2022-09-20 22:38:23,918 INFO L306 CDTParser]: Found 1 translation units. [2022-09-20 22:38:23,918 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i [2022-09-20 22:38:23,932 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6755f53bd/0f1fcd44e6544d8e8873a6635368ddef/FLAG3f7175ac5 [2022-09-20 22:38:24,326 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6755f53bd/0f1fcd44e6544d8e8873a6635368ddef [2022-09-20 22:38:24,328 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-20 22:38:24,329 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-20 22:38:24,330 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-20 22:38:24,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-20 22:38:24,332 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-20 22:38:24,332 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 10:38:24" (1/1) ... [2022-09-20 22:38:24,333 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74fd9ec2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:24, skipping insertion in model container [2022-09-20 22:38:24,333 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 10:38:24" (1/1) ... [2022-09-20 22:38:24,337 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-20 22:38:24,365 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-20 22:38:24,505 WARN L230 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_neg.i[1102,1115] [2022-09-20 22:38:24,616 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 22:38:24,620 INFO L203 MainTranslator]: Completed pre-run [2022-09-20 22:38:24,632 WARN L230 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_neg.i[1102,1115] [2022-09-20 22:38:24,655 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 22:38:24,685 INFO L208 MainTranslator]: Completed translation [2022-09-20 22:38:24,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:24 WrapperNode [2022-09-20 22:38:24,686 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-20 22:38:24,686 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-20 22:38:24,686 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-20 22:38:24,686 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-20 22:38:24,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:24" (1/1) ... [2022-09-20 22:38:24,708 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:24" (1/1) ... [2022-09-20 22:38:24,721 INFO L138 Inliner]: procedures = 162, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-09-20 22:38:24,721 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-20 22:38:24,722 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-20 22:38:24,722 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-20 22:38:24,722 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-20 22:38:24,727 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:24" (1/1) ... [2022-09-20 22:38:24,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:24" (1/1) ... [2022-09-20 22:38:24,734 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:24" (1/1) ... [2022-09-20 22:38:24,734 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:24" (1/1) ... [2022-09-20 22:38:24,737 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:24" (1/1) ... [2022-09-20 22:38:24,738 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:24" (1/1) ... [2022-09-20 22:38:24,739 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:24" (1/1) ... [2022-09-20 22:38:24,740 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-20 22:38:24,741 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-20 22:38:24,741 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-20 22:38:24,741 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-20 22:38:24,744 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:24" (1/1) ... [2022-09-20 22:38:24,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 22:38:24,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-20 22:38:24,766 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) [2022-09-20 22:38:24,768 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 [2022-09-20 22:38:24,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-20 22:38:24,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-20 22:38:24,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-20 22:38:24,792 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-09-20 22:38:24,792 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-09-20 22:38:24,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-20 22:38:24,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-20 22:38:24,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-20 22:38:24,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-20 22:38:24,793 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-20 22:38:24,862 INFO L234 CfgBuilder]: Building ICFG [2022-09-20 22:38:24,863 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-20 22:38:24,930 INFO L275 CfgBuilder]: Performing block encoding [2022-09-20 22:38:24,934 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-20 22:38:24,934 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-20 22:38:24,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 10:38:24 BoogieIcfgContainer [2022-09-20 22:38:24,935 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-20 22:38:24,937 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-20 22:38:24,937 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-20 22:38:24,939 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-20 22:38:24,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 10:38:24" (1/3) ... [2022-09-20 22:38:24,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27c67221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 10:38:24, skipping insertion in model container [2022-09-20 22:38:24,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:24" (2/3) ... [2022-09-20 22:38:24,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27c67221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 10:38:24, skipping insertion in model container [2022-09-20 22:38:24,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 10:38:24" (3/3) ... [2022-09-20 22:38:24,940 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_neg.i [2022-09-20 22:38:24,951 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-20 22:38:24,951 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-09-20 22:38:24,951 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-20 22:38:24,973 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-20 22:38:25,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 43 transitions, 91 flow [2022-09-20 22:38:25,078 INFO L130 PetriNetUnfolder]: 1/42 cut-off events. [2022-09-20 22:38:25,078 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-20 22:38:25,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 42 events. 1/42 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2022-09-20 22:38:25,081 INFO L82 GeneralOperation]: Start removeDead. Operand has 46 places, 43 transitions, 91 flow [2022-09-20 22:38:25,084 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 36 transitions, 75 flow [2022-09-20 22:38:25,103 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-20 22:38:25,110 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;@eda7675, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-20 22:38:25,110 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-09-20 22:38:25,120 INFO L130 PetriNetUnfolder]: 0/35 cut-off events. [2022-09-20 22:38:25,120 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-20 22:38:25,120 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:38:25,121 INFO L208 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, 1, 1, 1, 1] [2022-09-20 22:38:25,121 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-09-20 22:38:25,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:38:25,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1764370604, now seen corresponding path program 1 times [2022-09-20 22:38:25,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:38:25,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838107512] [2022-09-20 22:38:25,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:38:25,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:38:25,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-20 22:38:25,212 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-20 22:38:25,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-20 22:38:25,266 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-20 22:38:25,267 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-09-20 22:38:25,268 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-09-20 22:38:25,270 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-09-20 22:38:25,270 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-09-20 22:38:25,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-20 22:38:25,272 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-09-20 22:38:25,280 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-20 22:38:25,281 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-20 22:38:25,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 10:38:25 BasicIcfg [2022-09-20 22:38:25,310 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-20 22:38:25,312 INFO L158 Benchmark]: Toolchain (without parser) took 982.20ms. Allocated memory is still 179.3MB. Free memory was 143.6MB in the beginning and 104.9MB in the end (delta: 38.8MB). Peak memory consumption was 38.6MB. Max. memory is 8.0GB. [2022-09-20 22:38:25,312 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 179.3MB. Free memory is still 134.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-20 22:38:25,313 INFO L158 Benchmark]: CACSL2BoogieTranslator took 356.06ms. Allocated memory is still 179.3MB. Free memory was 143.5MB in the beginning and 140.4MB in the end (delta: 3.1MB). Peak memory consumption was 8.2MB. Max. memory is 8.0GB. [2022-09-20 22:38:25,314 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.50ms. Allocated memory is still 179.3MB. Free memory was 140.4MB in the beginning and 138.5MB in the end (delta: 1.9MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-20 22:38:25,314 INFO L158 Benchmark]: Boogie Preprocessor took 18.12ms. Allocated memory is still 179.3MB. Free memory was 138.5MB in the beginning and 137.4MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-20 22:38:25,317 INFO L158 Benchmark]: RCFGBuilder took 194.41ms. Allocated memory is still 179.3MB. Free memory was 137.4MB in the beginning and 127.4MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-09-20 22:38:25,318 INFO L158 Benchmark]: TraceAbstraction took 373.72ms. Allocated memory is still 179.3MB. Free memory was 126.7MB in the beginning and 104.9MB in the end (delta: 21.8MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2022-09-20 22:38:25,322 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 179.3MB. Free memory is still 134.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 356.06ms. Allocated memory is still 179.3MB. Free memory was 143.5MB in the beginning and 140.4MB in the end (delta: 3.1MB). Peak memory consumption was 8.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 35.50ms. Allocated memory is still 179.3MB. Free memory was 140.4MB in the beginning and 138.5MB in the end (delta: 1.9MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.12ms. Allocated memory is still 179.3MB. Free memory was 138.5MB in the beginning and 137.4MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 194.41ms. Allocated memory is still 179.3MB. Free memory was 137.4MB in the beginning and 127.4MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 373.72ms. Allocated memory is still 179.3MB. Free memory was 126.7MB in the beginning and 104.9MB in the end (delta: 21.8MB). Peak memory consumption was 21.0MB. 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()=3, arg={0:0}, arg={0:0}, x=3] [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, 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: 0.2s, 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=75occurred 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, 28 NumberOfCodeBlocks, 28 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! [2022-09-20 22:38:25,391 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...