/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-RepeatedSemanticLbe.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-wip.dk.repeated-lipton-8d0d62b [2022-12-05 23:43:51,428 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 23:43:51,430 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 23:43:51,462 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-12-05 23:43:51,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 23:43:51,482 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 23:43:51,483 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 23:43:51,485 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 23:43:51,486 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 23:43:51,486 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 23:43:51,490 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 23:43:51,492 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 23:43:51,494 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 23:43:51,494 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 23:43:51,495 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 23:43:51,496 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 23:43:51,499 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-05 23:43:51,507 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 23:43:51,508 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 23:43:51,508 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 23:43:51,509 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-RepeatedSemanticLbe.epf [2022-12-05 23:43:51,531 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 23:43:51,532 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 23:43:51,533 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 23:43:51,533 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 23:43:51,533 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 23:43:51,533 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 23:43:51,534 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 23:43:51,534 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 23:43:51,534 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 23:43:51,534 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 23:43:51,534 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 23:43:51,534 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 23:43:51,535 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 23:43:51,535 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 23:43:51,535 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 23:43:51,535 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 23:43:51,535 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 23:43:51,535 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 23:43:51,536 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 23:43:51,536 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 23:43:51,536 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 23:43:51,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 23:43:51,536 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 23:43:51,536 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 23:43:51,537 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 23:43:51,537 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 23:43:51,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 23:43:51,537 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-05 23:43:51,537 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 23:43:51,885 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 23:43:51,902 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 23:43:51,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 23:43:51,905 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 23:43:51,905 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 23:43:51,906 INFO L432 ainManager$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 [2022-12-05 23:43:53,095 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 23:43:53,383 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 23:43:53,384 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i [2022-12-05 23:43:53,403 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1375a01a1/a9501e7c928e449cb801627cfcefca9c/FLAG7ae7a1d9d [2022-12-05 23:43:53,417 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1375a01a1/a9501e7c928e449cb801627cfcefca9c [2022-12-05 23:43:53,419 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 23:43:53,420 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 23:43:53,421 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 23:43:53,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 23:43:53,424 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 23:43:53,424 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:43:53" (1/1) ... [2022-12-05 23:43:53,425 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@707646ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:43:53, skipping insertion in model container [2022-12-05 23:43:53,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:43:53" (1/1) ... [2022-12-05 23:43:53,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 23:43:53,471 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 23:43:53,586 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_neg.i[1102,1115] [2022-12-05 23:43:53,704 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 23:43:53,713 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 23:43:53,725 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_neg.i[1102,1115] [2022-12-05 23:43:53,768 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 23:43:53,821 INFO L208 MainTranslator]: Completed translation [2022-12-05 23:43:53,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:43:53 WrapperNode [2022-12-05 23:43:53,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 23:43:53,822 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 23:43:53,822 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 23:43:53,822 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 23:43:53,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:43:53" (1/1) ... [2022-12-05 23:43:53,850 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:43:53" (1/1) ... [2022-12-05 23:43:53,870 INFO L138 Inliner]: procedures = 162, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-12-05 23:43:53,870 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 23:43:53,871 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 23:43:53,871 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 23:43:53,871 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 23:43:53,878 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:43:53" (1/1) ... [2022-12-05 23:43:53,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:43:53" (1/1) ... [2022-12-05 23:43:53,889 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:43:53" (1/1) ... [2022-12-05 23:43:53,890 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:43:53" (1/1) ... [2022-12-05 23:43:53,893 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:43:53" (1/1) ... [2022-12-05 23:43:53,894 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:43:53" (1/1) ... [2022-12-05 23:43:53,895 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:43:53" (1/1) ... [2022-12-05 23:43:53,898 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:43:53" (1/1) ... [2022-12-05 23:43:53,900 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 23:43:53,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 23:43:53,901 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 23:43:53,901 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 23:43:53,902 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:43:53" (1/1) ... [2022-12-05 23:43:53,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 23:43:53,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 23:43:53,936 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) [2022-12-05 23:43:53,948 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 [2022-12-05 23:43:53,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 23:43:53,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 23:43:53,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 23:43:53,976 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-05 23:43:53,976 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-05 23:43:53,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 23:43:53,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 23:43:53,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 23:43:53,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 23:43:53,977 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 23:43:54,135 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 23:43:54,137 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 23:43:54,255 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 23:43:54,260 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 23:43:54,260 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 23:43:54,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:43:54 BoogieIcfgContainer [2022-12-05 23:43:54,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 23:43:54,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 23:43:54,264 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 23:43:54,266 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 23:43:54,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 11:43:53" (1/3) ... [2022-12-05 23:43:54,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ed2344a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 11:43:54, skipping insertion in model container [2022-12-05 23:43:54,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:43:53" (2/3) ... [2022-12-05 23:43:54,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ed2344a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 11:43:54, skipping insertion in model container [2022-12-05 23:43:54,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:43:54" (3/3) ... [2022-12-05 23:43:54,268 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_neg.i [2022-12-05 23:43:54,288 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 23:43:54,288 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-05 23:43:54,288 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 23:43:54,339 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-05 23:43:54,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 37 transitions, 79 flow [2022-12-05 23:43:54,412 INFO L130 PetriNetUnfolder]: 1/36 cut-off events. [2022-12-05 23:43:54,412 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 23:43:54,416 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. [2022-12-05 23:43:54,416 INFO L82 GeneralOperation]: Start removeDead. Operand has 40 places, 37 transitions, 79 flow [2022-12-05 23:43:54,420 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 31 transitions, 65 flow [2022-12-05 23:43:54,421 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 23:43:54,450 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 31 transitions, 65 flow [2022-12-05 23:43:54,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 31 transitions, 65 flow [2022-12-05 23:43:54,474 INFO L130 PetriNetUnfolder]: 0/31 cut-off events. [2022-12-05 23:43:54,475 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 23:43:54,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 31 events. 0/31 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 13 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-05 23:43:54,477 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 31 transitions, 65 flow [2022-12-05 23:43:54,477 INFO L188 LiptonReduction]: Number of co-enabled transitions 126 [2022-12-05 23:43:55,770 INFO L203 LiptonReduction]: Total number of compositions: 27 [2022-12-05 23:43:55,793 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 23:43:55,798 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=REPEATED_LIPTON_PN, 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;@6ade40c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 23:43:55,799 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-05 23:43:55,801 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2022-12-05 23:43:55,801 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 23:43:55,801 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 23:43:55,802 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-05 23:43:55,802 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-05 23:43:55,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 23:43:55,806 INFO L85 PathProgramCache]: Analyzing trace with hash 149104, now seen corresponding path program 1 times [2022-12-05 23:43:55,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 23:43:55,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863715499] [2022-12-05 23:43:55,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 23:43:55,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 23:43:55,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-05 23:43:55,900 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-05 23:43:55,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-05 23:43:55,925 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-05 23:43:55,926 INFO L373 BasicCegarLoop]: Counterexample is feasible [2022-12-05 23:43:55,927 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-05 23:43:55,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-05 23:43:55,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-12-05 23:43:55,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 23:43:55,930 INFO L458 BasicCegarLoop]: Path program histogram: [1] [2022-12-05 23:43:55,945 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 23:43:55,945 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 23:43:55,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 11:43:55 BasicIcfg [2022-12-05 23:43:55,958 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 23:43:55,959 INFO L158 Benchmark]: Toolchain (without parser) took 2537.94ms. Allocated memory is still 184.5MB. Free memory was 159.4MB in the beginning and 160.1MB in the end (delta: -693.3kB). Peak memory consumption was 62.0MB. Max. memory is 8.0GB. [2022-12-05 23:43:55,959 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 127.9MB. Free memory is still 109.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 23:43:55,959 INFO L158 Benchmark]: CACSL2BoogieTranslator took 400.29ms. Allocated memory is still 184.5MB. Free memory was 159.4MB in the beginning and 141.0MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-05 23:43:55,960 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.22ms. Allocated memory is still 184.5MB. Free memory was 141.0MB in the beginning and 138.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 23:43:55,960 INFO L158 Benchmark]: Boogie Preprocessor took 29.25ms. Allocated memory is still 184.5MB. Free memory was 138.9MB in the beginning and 137.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-05 23:43:55,961 INFO L158 Benchmark]: RCFGBuilder took 360.93ms. Allocated memory is still 184.5MB. Free memory was 137.9MB in the beginning and 156.3MB in the end (delta: -18.4MB). Peak memory consumption was 7.6MB. Max. memory is 8.0GB. [2022-12-05 23:43:55,961 INFO L158 Benchmark]: TraceAbstraction took 1694.03ms. Allocated memory is still 184.5MB. Free memory was 155.2MB in the beginning and 160.1MB in the end (delta: -4.9MB). Peak memory consumption was 56.5MB. Max. memory is 8.0GB. [2022-12-05 23:43:55,963 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 127.9MB. Free memory is still 109.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 400.29ms. Allocated memory is still 184.5MB. Free memory was 159.4MB in the beginning and 141.0MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 48.22ms. Allocated memory is still 184.5MB. Free memory was 141.0MB in the beginning and 138.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.25ms. Allocated memory is still 184.5MB. Free memory was 138.9MB in the beginning and 137.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 360.93ms. Allocated memory is still 184.5MB. Free memory was 137.9MB in the beginning and 156.3MB in the end (delta: -18.4MB). Peak memory consumption was 7.6MB. Max. memory is 8.0GB. * TraceAbstraction took 1694.03ms. Allocated memory is still 184.5MB. Free memory was 155.2MB in the beginning and 160.1MB in the end (delta: -4.9MB). Peak memory consumption was 56.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.3s, 35 PlacesBefore, 8 PlacesAfterwards, 31 TransitionsBefore, 4 TransitionsAfterwards, 126 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 13 TrivialYvCompositions, 14 ConcurrentYvCompositions, 0 ChoiceCompositions, 27 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 62, independent: 62, independent conditional: 62, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 62, independent: 62, independent conditional: 0, independent unconditional: 62, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 62, independent: 62, independent conditional: 0, independent unconditional: 62, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 62, independent: 62, independent conditional: 0, independent unconditional: 62, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 62, independent: 62, independent conditional: 0, independent unconditional: 62, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 62, independent: 62, independent conditional: 0, independent unconditional: 62, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 62, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 62, unknown conditional: 0, unknown unconditional: 62] , Statistics on independence cache: Total cache size (in pairs): 110, Positive cache size: 110, Positive conditional cache size: 0, Positive unconditional cache size: 110, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - 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; [L689] 0 pthread_t id; [L690] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, x=3] [L683] 1 int x = __VERIFIER_nondet_int(); [L684] CALL 1 __VERIFIER_assert(!(x == 3)) [L19] COND TRUE 1 !(cond) [L19] 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: 1.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-05 23:43:55,986 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...