/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-27 19:35:46,350 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 19:35:46,352 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 19:35:46,394 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-01-27 19:35:46,408 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 19:35:46,409 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 19:35:46,410 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 19:35:46,411 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 19:35:46,411 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 19:35:46,412 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 19:35:46,413 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 19:35:46,417 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 19:35:46,418 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 19:35:46,420 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 19:35:46,420 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 19:35:46,425 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 19:35:46,431 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-27 19:35:46,446 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 19:35:46,447 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 19:35:46,447 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 19:35:46,448 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-VariableLbe.epf [2023-01-27 19:35:46,480 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 19:35:46,480 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 19:35:46,481 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 19:35:46,481 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 19:35:46,482 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 19:35:46,482 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 19:35:46,482 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 19:35:46,482 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 19:35:46,482 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 19:35:46,482 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 19:35:46,483 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 19:35:46,483 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 19:35:46,483 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 19:35:46,483 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 19:35:46,483 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 19:35:46,483 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 19:35:46,483 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 19:35:46,483 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 19:35:46,483 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 19:35:46,483 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 19:35:46,484 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 19:35:46,484 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 19:35:46,484 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 19:35:46,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 19:35:46,484 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 19:35:46,484 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 19:35:46,484 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 19:35:46,484 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 19:35:46,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 19:35:46,484 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 19:35:46,485 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 19:35:46,485 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-01-27 19:35:46,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 19:35:46,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 19:35:46,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 19:35:46,849 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 19:35:46,849 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 19:35:46,850 INFO L432 ainManager$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 [2023-01-27 19:35:48,532 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 19:35:48,867 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 19:35:48,867 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i [2023-01-27 19:35:48,883 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43262980b/6af0e6ae299c43ce820da5392bb46838/FLAGb878d751f [2023-01-27 19:35:48,902 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43262980b/6af0e6ae299c43ce820da5392bb46838 [2023-01-27 19:35:48,904 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 19:35:48,905 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 19:35:48,907 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 19:35:48,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 19:35:48,924 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 19:35:48,924 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 07:35:48" (1/1) ... [2023-01-27 19:35:48,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@749d5aff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:48, skipping insertion in model container [2023-01-27 19:35:48,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 07:35:48" (1/1) ... [2023-01-27 19:35:48,937 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 19:35:48,992 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 19:35:49,204 WARN L247 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] [2023-01-27 19:35:49,411 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 19:35:49,419 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 19:35:49,442 WARN L247 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] [2023-01-27 19:35:49,496 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 19:35:49,597 INFO L208 MainTranslator]: Completed translation [2023-01-27 19:35:49,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:49 WrapperNode [2023-01-27 19:35:49,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 19:35:49,599 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 19:35:49,599 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 19:35:49,599 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 19:35:49,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:49" (1/1) ... [2023-01-27 19:35:49,639 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:49" (1/1) ... [2023-01-27 19:35:49,671 INFO L138 Inliner]: procedures = 162, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 36 [2023-01-27 19:35:49,671 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 19:35:49,671 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 19:35:49,672 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 19:35:49,672 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 19:35:49,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:49" (1/1) ... [2023-01-27 19:35:49,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:49" (1/1) ... [2023-01-27 19:35:49,678 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:49" (1/1) ... [2023-01-27 19:35:49,679 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:49" (1/1) ... [2023-01-27 19:35:49,695 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:49" (1/1) ... [2023-01-27 19:35:49,698 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:49" (1/1) ... [2023-01-27 19:35:49,706 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:49" (1/1) ... [2023-01-27 19:35:49,707 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:49" (1/1) ... [2023-01-27 19:35:49,711 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 19:35:49,711 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 19:35:49,712 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 19:35:49,712 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 19:35:49,712 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:49" (1/1) ... [2023-01-27 19:35:49,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 19:35:49,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 19:35:49,775 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-01-27 19:35:49,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-01-27 19:35:49,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 19:35:49,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 19:35:49,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 19:35:49,842 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-01-27 19:35:49,842 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-01-27 19:35:49,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 19:35:49,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 19:35:49,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 19:35:49,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 19:35:49,846 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-27 19:35:50,048 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 19:35:50,049 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 19:35:50,202 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 19:35:50,208 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 19:35:50,209 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-27 19:35:50,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 07:35:50 BoogieIcfgContainer [2023-01-27 19:35:50,210 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 19:35:50,211 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 19:35:50,212 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 19:35:50,214 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 19:35:50,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 07:35:48" (1/3) ... [2023-01-27 19:35:50,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31f494ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 07:35:50, skipping insertion in model container [2023-01-27 19:35:50,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:49" (2/3) ... [2023-01-27 19:35:50,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31f494ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 07:35:50, skipping insertion in model container [2023-01-27 19:35:50,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 07:35:50" (3/3) ... [2023-01-27 19:35:50,216 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_neg.i [2023-01-27 19:35:50,265 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 19:35:50,265 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-27 19:35:50,265 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 19:35:50,317 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 19:35:50,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 38 transitions, 81 flow [2023-01-27 19:35:50,386 INFO L130 PetriNetUnfolder]: 1/37 cut-off events. [2023-01-27 19:35:50,386 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 19:35:50,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 37 events. 1/37 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. 0/35 useless extension candidates. Maximal degree in co-relation 22. Up to 2 conditions per place. [2023-01-27 19:35:50,390 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 38 transitions, 81 flow [2023-01-27 19:35:50,393 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 36 places, 32 transitions, 67 flow [2023-01-27 19:35:50,396 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 19:35:50,413 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 32 transitions, 67 flow [2023-01-27 19:35:50,417 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 32 transitions, 67 flow [2023-01-27 19:35:50,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 32 transitions, 67 flow [2023-01-27 19:35:50,433 INFO L130 PetriNetUnfolder]: 0/32 cut-off events. [2023-01-27 19:35:50,434 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 19:35:50,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 32 events. 0/32 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. 0/32 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-01-27 19:35:50,434 INFO L119 LiptonReduction]: Number of co-enabled transitions 140 [2023-01-27 19:35:51,556 INFO L134 LiptonReduction]: Checked pairs total: 88 [2023-01-27 19:35:51,557 INFO L136 LiptonReduction]: Total number of compositions: 28 [2023-01-27 19:35:51,571 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 19:35:51,576 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;@302d060d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 19:35:51,576 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-01-27 19:35:51,579 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2023-01-27 19:35:51,579 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 19:35:51,579 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:35:51,580 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-01-27 19:35:51,580 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-27 19:35:51,584 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:35:51,584 INFO L85 PathProgramCache]: Analyzing trace with hash 153046, now seen corresponding path program 1 times [2023-01-27 19:35:51,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:35:51,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359313022] [2023-01-27 19:35:51,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:35:51,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:35:51,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 19:35:51,712 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 19:35:51,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 19:35:51,782 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 19:35:51,783 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 19:35:51,784 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-01-27 19:35:51,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-01-27 19:35:51,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2023-01-27 19:35:51,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 19:35:51,786 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 19:35:51,809 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-27 19:35:51,809 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-27 19:35:51,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 07:35:51 BasicIcfg [2023-01-27 19:35:51,822 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-27 19:35:51,823 INFO L158 Benchmark]: Toolchain (without parser) took 2918.31ms. Allocated memory is still 455.1MB. Free memory was 403.3MB in the beginning and 351.3MB in the end (delta: 51.9MB). Peak memory consumption was 54.0MB. Max. memory is 16.0GB. [2023-01-27 19:35:51,824 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 312.5MB. Free memory was 261.1MB in the beginning and 261.0MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 19:35:51,824 INFO L158 Benchmark]: CACSL2BoogieTranslator took 691.17ms. Allocated memory is still 455.1MB. Free memory was 402.9MB in the beginning and 384.7MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-01-27 19:35:51,827 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.43ms. Allocated memory is still 455.1MB. Free memory was 384.7MB in the beginning and 382.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 19:35:51,841 INFO L158 Benchmark]: Boogie Preprocessor took 39.50ms. Allocated memory is still 455.1MB. Free memory was 382.7MB in the beginning and 381.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 19:35:51,842 INFO L158 Benchmark]: RCFGBuilder took 498.68ms. Allocated memory is still 455.1MB. Free memory was 381.6MB in the beginning and 370.8MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-01-27 19:35:51,842 INFO L158 Benchmark]: TraceAbstraction took 1610.77ms. Allocated memory is still 455.1MB. Free memory was 370.1MB in the beginning and 351.3MB in the end (delta: 18.8MB). Peak memory consumption was 20.5MB. Max. memory is 16.0GB. [2023-01-27 19:35:51,847 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 312.5MB. Free memory was 261.1MB in the beginning and 261.0MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 691.17ms. Allocated memory is still 455.1MB. Free memory was 402.9MB in the beginning and 384.7MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 72.43ms. Allocated memory is still 455.1MB. Free memory was 384.7MB in the beginning and 382.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 39.50ms. Allocated memory is still 455.1MB. Free memory was 382.7MB in the beginning and 381.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 498.68ms. Allocated memory is still 455.1MB. Free memory was 381.6MB in the beginning and 370.8MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * TraceAbstraction took 1610.77ms. Allocated memory is still 455.1MB. Free memory was 370.1MB in the beginning and 351.3MB in the end (delta: 18.8MB). Peak memory consumption was 20.5MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.1s, 36 PlacesBefore, 8 PlacesAfterwards, 32 TransitionsBefore, 4 TransitionsAfterwards, 140 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 15 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 28 TotalNumberOfCompositions, 88 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 88, independent: 88, independent conditional: 0, independent unconditional: 88, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 69, independent: 69, independent conditional: 0, independent unconditional: 69, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 88, independent: 19, independent conditional: 0, independent unconditional: 19, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 69, unknown conditional: 0, unknown unconditional: 69] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 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={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, x=3] [L683] 1 int x = __VERIFIER_nondet_int(); [L684] CALL 1 __VERIFIER_assert(!(x == 3)) [L19] COND TRUE 1 !(cond) [L19] 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, 54 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: 1.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-01-27 19:35:51,867 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...