/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-?-0612a5f-m [2022-09-20 20:46:11,320 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-20 20:46:11,322 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-20 20:46:11,367 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-20 20:46:11,368 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-20 20:46:11,370 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-20 20:46:11,373 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-20 20:46:11,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-20 20:46:11,377 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-20 20:46:11,382 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-20 20:46:11,383 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-20 20:46:11,384 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-20 20:46:11,384 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-20 20:46:11,386 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-20 20:46:11,387 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-20 20:46:11,390 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-20 20:46:11,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-20 20:46:11,391 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-20 20:46:11,393 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-20 20:46:11,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-20 20:46:11,400 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-20 20:46:11,401 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-20 20:46:11,405 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-20 20:46:11,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-20 20:46:11,412 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-20 20:46:11,420 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-20 20:46:11,421 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-20 20:46:11,421 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-20 20:46:11,422 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 20:46:11,452 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-20 20:46:11,452 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-20 20:46:11,454 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-20 20:46:11,454 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-20 20:46:11,454 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-20 20:46:11,454 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-20 20:46:11,454 INFO L138 SettingsManager]: * Use SBE=true [2022-09-20 20:46:11,455 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-20 20:46:11,455 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-20 20:46:11,455 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-20 20:46:11,456 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-20 20:46:11,456 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-20 20:46:11,456 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-20 20:46:11,456 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-20 20:46:11,456 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-20 20:46:11,456 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-20 20:46:11,456 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-20 20:46:11,456 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-20 20:46:11,457 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-20 20:46:11,457 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-20 20:46:11,457 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-20 20:46:11,457 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-20 20:46:11,457 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-20 20:46:11,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 20:46:11,457 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-20 20:46:11,457 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-20 20:46:11,458 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-20 20:46:11,458 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-20 20:46:11,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-20 20:46:11,458 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-20 20:46:11,458 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-20 20:46:11,458 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-20 20:46:11,698 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-20 20:46:11,722 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-20 20:46:11,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-20 20:46:11,725 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-20 20:46:11,727 INFO L275 PluginConnector]: CDTParser initialized [2022-09-20 20:46:11,728 INFO L432 ainManager$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 20:46:11,792 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed0d76e9d/6a6ff4f00c1a45a29de8d3a9731db87a/FLAGd4d230b88 [2022-09-20 20:46:12,193 INFO L306 CDTParser]: Found 1 translation units. [2022-09-20 20:46:12,194 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 20:46:12,207 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed0d76e9d/6a6ff4f00c1a45a29de8d3a9731db87a/FLAGd4d230b88 [2022-09-20 20:46:12,235 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed0d76e9d/6a6ff4f00c1a45a29de8d3a9731db87a [2022-09-20 20:46:12,237 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-20 20:46:12,239 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-20 20:46:12,240 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-20 20:46:12,240 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-20 20:46:12,243 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-20 20:46:12,244 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:46:12" (1/1) ... [2022-09-20 20:46:12,245 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4511dce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:46:12, skipping insertion in model container [2022-09-20 20:46:12,245 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:46:12" (1/1) ... [2022-09-20 20:46:12,252 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-20 20:46:12,286 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-20 20:46:12,433 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 20:46:12,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 20:46:12,532 INFO L203 MainTranslator]: Completed pre-run [2022-09-20 20:46:12,542 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 20:46:12,577 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 20:46:12,611 INFO L208 MainTranslator]: Completed translation [2022-09-20 20:46:12,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:46:12 WrapperNode [2022-09-20 20:46:12,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-20 20:46:12,614 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-20 20:46:12,614 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-20 20:46:12,614 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-20 20:46:12,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:46:12" (1/1) ... [2022-09-20 20:46:12,643 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:46:12" (1/1) ... [2022-09-20 20:46:12,663 INFO L138 Inliner]: procedures = 162, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-09-20 20:46:12,663 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-20 20:46:12,664 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-20 20:46:12,664 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-20 20:46:12,664 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-20 20:46:12,670 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:46:12" (1/1) ... [2022-09-20 20:46:12,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:46:12" (1/1) ... [2022-09-20 20:46:12,680 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:46:12" (1/1) ... [2022-09-20 20:46:12,681 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:46:12" (1/1) ... [2022-09-20 20:46:12,689 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:46:12" (1/1) ... [2022-09-20 20:46:12,691 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:46:12" (1/1) ... [2022-09-20 20:46:12,692 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:46:12" (1/1) ... [2022-09-20 20:46:12,693 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-20 20:46:12,694 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-20 20:46:12,694 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-20 20:46:12,694 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-20 20:46:12,695 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:46:12" (1/1) ... [2022-09-20 20:46:12,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 20:46:12,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-20 20:46:12,733 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 20:46:12,747 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 20:46:12,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-20 20:46:12,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-20 20:46:12,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-20 20:46:12,781 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-09-20 20:46:12,781 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-09-20 20:46:12,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-20 20:46:12,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-20 20:46:12,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-20 20:46:12,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-20 20:46:12,782 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 20:46:12,937 INFO L234 CfgBuilder]: Building ICFG [2022-09-20 20:46:12,938 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-20 20:46:13,068 INFO L275 CfgBuilder]: Performing block encoding [2022-09-20 20:46:13,076 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-20 20:46:13,076 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-20 20:46:13,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:46:13 BoogieIcfgContainer [2022-09-20 20:46:13,078 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-20 20:46:13,080 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-20 20:46:13,080 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-20 20:46:13,083 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-20 20:46:13,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 08:46:12" (1/3) ... [2022-09-20 20:46:13,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4119c8a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 08:46:13, skipping insertion in model container [2022-09-20 20:46:13,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:46:12" (2/3) ... [2022-09-20 20:46:13,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4119c8a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 08:46:13, skipping insertion in model container [2022-09-20 20:46:13,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:46:13" (3/3) ... [2022-09-20 20:46:13,087 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_neg.i [2022-09-20 20:46:13,103 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-20 20:46:13,103 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-09-20 20:46:13,103 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-20 20:46:13,155 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-20 20:46:13,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 43 transitions, 91 flow [2022-09-20 20:46:13,236 INFO L130 PetriNetUnfolder]: 1/42 cut-off events. [2022-09-20 20:46:13,236 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-20 20:46:13,239 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 20:46:13,239 INFO L82 GeneralOperation]: Start removeDead. Operand has 46 places, 43 transitions, 91 flow [2022-09-20 20:46:13,244 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 36 transitions, 75 flow [2022-09-20 20:46:13,258 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-20 20:46:13,267 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;@ca4d921, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-20 20:46:13,267 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-09-20 20:46:13,285 INFO L130 PetriNetUnfolder]: 0/35 cut-off events. [2022-09-20 20:46:13,285 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-20 20:46:13,285 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 20:46:13,286 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 20:46:13,286 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 20:46:13,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 20:46:13,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1764370604, now seen corresponding path program 1 times [2022-09-20 20:46:13,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 20:46:13,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015555864] [2022-09-20 20:46:13,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 20:46:13,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 20:46:13,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-20 20:46:13,438 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-20 20:46:13,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-20 20:46:13,491 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-20 20:46:13,492 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-09-20 20:46:13,493 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-09-20 20:46:13,495 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-09-20 20:46:13,495 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-09-20 20:46:13,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-20 20:46:13,497 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-09-20 20:46:13,504 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-20 20:46:13,504 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-20 20:46:13,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 08:46:13 BasicIcfg [2022-09-20 20:46:13,539 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-20 20:46:13,540 INFO L158 Benchmark]: Toolchain (without parser) took 1300.82ms. Allocated memory was 190.8MB in the beginning and 278.9MB in the end (delta: 88.1MB). Free memory was 163.4MB in the beginning and 203.6MB in the end (delta: -40.2MB). Peak memory consumption was 46.7MB. Max. memory is 8.0GB. [2022-09-20 20:46:13,540 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 190.8MB. Free memory is still 146.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-20 20:46:13,541 INFO L158 Benchmark]: CACSL2BoogieTranslator took 372.50ms. Allocated memory was 190.8MB in the beginning and 278.9MB in the end (delta: 88.1MB). Free memory was 163.2MB in the beginning and 239.2MB in the end (delta: -76.0MB). Peak memory consumption was 16.3MB. Max. memory is 8.0GB. [2022-09-20 20:46:13,541 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.56ms. Allocated memory is still 278.9MB. Free memory was 239.2MB in the beginning and 237.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-20 20:46:13,542 INFO L158 Benchmark]: Boogie Preprocessor took 29.64ms. Allocated memory is still 278.9MB. Free memory was 237.6MB in the beginning and 236.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-20 20:46:13,542 INFO L158 Benchmark]: RCFGBuilder took 384.05ms. Allocated memory is still 278.9MB. Free memory was 236.6MB in the beginning and 225.6MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-09-20 20:46:13,543 INFO L158 Benchmark]: TraceAbstraction took 458.78ms. Allocated memory is still 278.9MB. Free memory was 224.6MB in the beginning and 203.6MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2022-09-20 20:46:13,545 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 190.8MB. Free memory is still 146.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 372.50ms. Allocated memory was 190.8MB in the beginning and 278.9MB in the end (delta: 88.1MB). Free memory was 163.2MB in the beginning and 239.2MB in the end (delta: -76.0MB). Peak memory consumption was 16.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 49.56ms. Allocated memory is still 278.9MB. Free memory was 239.2MB in the beginning and 237.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.64ms. Allocated memory is still 278.9MB. Free memory was 237.6MB in the beginning and 236.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 384.05ms. Allocated memory is still 278.9MB. Free memory was 236.6MB in the beginning and 225.6MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 458.78ms. Allocated memory is still 278.9MB. Free memory was 224.6MB in the beginning and 203.6MB in the end (delta: 21.0MB). 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: 0.3s, 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=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 20:46:13,582 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...