/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/13-privatized_19-publish-precision_unknown_1_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-27 19:01:56,611 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 19:01:56,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 19:01:56,655 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-27 19:01:56,655 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-27 19:01:56,656 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-27 19:01:56,656 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-27 19:01:56,658 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-27 19:01:56,659 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-27 19:01:56,660 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-27 19:01:56,660 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-27 19:01:56,661 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-27 19:01:56,662 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 19:01:56,662 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 19:01:56,663 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 19:01:56,664 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 19:01:56,665 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 19:01:56,665 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 19:01:56,667 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 19:01:56,668 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 19:01:56,669 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 19:01:56,670 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 19:01:56,671 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 19:01:56,672 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 19:01:56,675 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-27 19:01:56,681 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 19:01:56,682 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 19:01:56,682 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 19:01:56,687 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 19:01:56,717 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 19:01:56,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 19:01:56,718 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 19:01:56,718 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 19:01:56,719 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 19:01:56,719 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 19:01:56,719 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 19:01:56,720 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 19:01:56,720 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 19:01:56,720 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 19:01:56,721 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 19:01:56,721 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 19:01:56,721 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 19:01:56,721 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 19:01:56,721 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 19:01:56,721 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 19:01:56,721 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 19:01:56,722 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 19:01:56,722 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 19:01:56,722 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 19:01:56,722 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 19:01:56,722 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 19:01:56,722 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 19:01:56,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 19:01:56,722 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 19:01:56,723 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 19:01:56,723 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 19:01:56,723 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 19:01:56,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 19:01:56,723 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 19:01:56,723 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 19:01:56,723 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-01-27 19:01:56,918 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 19:01:56,938 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 19:01:56,940 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 19:01:56,941 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 19:01:56,942 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 19:01:56,943 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i [2023-01-27 19:01:58,081 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 19:01:58,311 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 19:01:58,312 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i [2023-01-27 19:01:58,324 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b213eca66/b094179d35e8418698dcc24cf9b11cf6/FLAG898e2427e [2023-01-27 19:01:58,335 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b213eca66/b094179d35e8418698dcc24cf9b11cf6 [2023-01-27 19:01:58,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 19:01:58,339 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 19:01:58,340 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 19:01:58,340 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 19:01:58,342 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 19:01:58,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 07:01:58" (1/1) ... [2023-01-27 19:01:58,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e8abcf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:58, skipping insertion in model container [2023-01-27 19:01:58,344 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 07:01:58" (1/1) ... [2023-01-27 19:01:58,349 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 19:01:58,376 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 19:01:58,538 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/13-privatized_19-publish-precision_unknown_1_neg.i[1103,1116] [2023-01-27 19:01:58,702 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 19:01:58,713 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 19:01:58,726 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/13-privatized_19-publish-precision_unknown_1_neg.i[1103,1116] [2023-01-27 19:01:58,759 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 19:01:58,800 INFO L208 MainTranslator]: Completed translation [2023-01-27 19:01:58,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:58 WrapperNode [2023-01-27 19:01:58,801 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 19:01:58,802 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 19:01:58,802 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 19:01:58,802 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 19:01:58,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:58" (1/1) ... [2023-01-27 19:01:58,826 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:58" (1/1) ... [2023-01-27 19:01:58,851 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2023-01-27 19:01:58,851 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 19:01:58,852 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 19:01:58,852 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 19:01:58,852 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 19:01:58,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:58" (1/1) ... [2023-01-27 19:01:58,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:58" (1/1) ... [2023-01-27 19:01:58,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:58" (1/1) ... [2023-01-27 19:01:58,863 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:58" (1/1) ... [2023-01-27 19:01:58,866 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:58" (1/1) ... [2023-01-27 19:01:58,867 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:58" (1/1) ... [2023-01-27 19:01:58,869 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:58" (1/1) ... [2023-01-27 19:01:58,869 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:58" (1/1) ... [2023-01-27 19:01:58,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 19:01:58,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 19:01:58,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 19:01:58,872 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 19:01:58,873 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:58" (1/1) ... [2023-01-27 19:01:58,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 19:01:58,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 19:01:58,899 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 19:01:58,904 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 19:01:58,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-27 19:01:58,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 19:01:58,940 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-27 19:01:58,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 19:01:58,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 19:01:58,940 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-01-27 19:01:58,940 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-01-27 19:01:58,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 19:01:58,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 19:01:58,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 19:01:58,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 19:01:58,943 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 19:01:59,106 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 19:01:59,126 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 19:01:59,323 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 19:01:59,333 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 19:01:59,333 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-27 19:01:59,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 07:01:59 BoogieIcfgContainer [2023-01-27 19:01:59,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 19:01:59,337 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 19:01:59,337 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 19:01:59,340 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 19:01:59,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 07:01:58" (1/3) ... [2023-01-27 19:01:59,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6efb14f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 07:01:59, skipping insertion in model container [2023-01-27 19:01:59,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:58" (2/3) ... [2023-01-27 19:01:59,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6efb14f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 07:01:59, skipping insertion in model container [2023-01-27 19:01:59,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 07:01:59" (3/3) ... [2023-01-27 19:01:59,344 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_1_neg.i [2023-01-27 19:01:59,360 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 19:01:59,360 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-27 19:01:59,360 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 19:01:59,429 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-01-27 19:01:59,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 65 transitions, 138 flow [2023-01-27 19:01:59,521 INFO L130 PetriNetUnfolder]: 1/64 cut-off events. [2023-01-27 19:01:59,521 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-27 19:01:59,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 64 events. 1/64 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2023-01-27 19:01:59,525 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 65 transitions, 138 flow [2023-01-27 19:01:59,529 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 52 transitions, 107 flow [2023-01-27 19:01:59,533 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 19:01:59,556 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 52 transitions, 107 flow [2023-01-27 19:01:59,560 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 52 transitions, 107 flow [2023-01-27 19:01:59,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 52 transitions, 107 flow [2023-01-27 19:01:59,582 INFO L130 PetriNetUnfolder]: 0/52 cut-off events. [2023-01-27 19:01:59,582 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 19:01:59,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 52 events. 0/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 17 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-01-27 19:01:59,583 INFO L119 LiptonReduction]: Number of co-enabled transitions 252 [2023-01-27 19:02:01,749 INFO L134 LiptonReduction]: Checked pairs total: 530 [2023-01-27 19:02:01,749 INFO L136 LiptonReduction]: Total number of compositions: 40 [2023-01-27 19:02:01,769 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 19:02:01,777 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;@1ba5cb9d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 19:02:01,777 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-01-27 19:02:01,781 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2023-01-27 19:02:01,781 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 19:02:01,781 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:02:01,782 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-01-27 19:02:01,782 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 19:02:01,787 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:02:01,788 INFO L85 PathProgramCache]: Analyzing trace with hash 6763455, now seen corresponding path program 1 times [2023-01-27 19:02:01,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:02:01,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364268165] [2023-01-27 19:02:01,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:02:01,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:02:01,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 19:02:01,926 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 19:02:01,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 19:02:01,992 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 19:02:01,994 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 19:02:01,995 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-01-27 19:02:01,997 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-01-27 19:02:01,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 19:02:01,997 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 19:02:02,006 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-27 19:02:02,006 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-27 19:02:02,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 07:02:02 BasicIcfg [2023-01-27 19:02:02,026 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-27 19:02:02,028 INFO L158 Benchmark]: Toolchain (without parser) took 3688.41ms. Allocated memory is still 325.1MB. Free memory was 283.5MB in the beginning and 234.5MB in the end (delta: 49.0MB). Peak memory consumption was 50.1MB. Max. memory is 16.0GB. [2023-01-27 19:02:02,028 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 255.9MB. Free memory is still 213.5MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 19:02:02,029 INFO L158 Benchmark]: CACSL2BoogieTranslator took 461.61ms. Allocated memory is still 325.1MB. Free memory was 283.5MB in the beginning and 264.7MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-01-27 19:02:02,033 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.34ms. Allocated memory is still 325.1MB. Free memory was 264.7MB in the beginning and 262.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 19:02:02,033 INFO L158 Benchmark]: Boogie Preprocessor took 19.52ms. Allocated memory is still 325.1MB. Free memory was 262.6MB in the beginning and 261.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 19:02:02,034 INFO L158 Benchmark]: RCFGBuilder took 462.75ms. Allocated memory is still 325.1MB. Free memory was 261.1MB in the beginning and 248.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-01-27 19:02:02,035 INFO L158 Benchmark]: TraceAbstraction took 2689.78ms. Allocated memory is still 325.1MB. Free memory was 247.9MB in the beginning and 234.5MB in the end (delta: 13.4MB). Peak memory consumption was 14.4MB. Max. memory is 16.0GB. [2023-01-27 19:02:02,040 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 255.9MB. Free memory is still 213.5MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 461.61ms. Allocated memory is still 325.1MB. Free memory was 283.5MB in the beginning and 264.7MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 49.34ms. Allocated memory is still 325.1MB. Free memory was 264.7MB in the beginning and 262.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 19.52ms. Allocated memory is still 325.1MB. Free memory was 262.6MB in the beginning and 261.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 462.75ms. Allocated memory is still 325.1MB. Free memory was 261.1MB in the beginning and 248.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 2689.78ms. Allocated memory is still 325.1MB. Free memory was 247.9MB in the beginning and 234.5MB in the end (delta: 13.4MB). Peak memory consumption was 14.4MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 56 PlacesBefore, 16 PlacesAfterwards, 52 TransitionsBefore, 12 TransitionsAfterwards, 252 CoEnabledTransitionPairs, 6 FixpointIterations, 27 TrivialSequentialCompositions, 13 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 40 TotalNumberOfCompositions, 530 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 303, independent: 200, independent conditional: 0, independent unconditional: 200, dependent: 103, dependent conditional: 0, dependent unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 143, independent: 123, independent conditional: 0, independent unconditional: 123, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 303, independent: 77, independent conditional: 0, independent unconditional: 77, dependent: 83, dependent conditional: 0, dependent unconditional: 83, unknown: 143, unknown conditional: 0, unknown unconditional: 143] , Statistics on independence cache: Total cache size (in pairs): 13, Positive cache size: 5, Positive conditional cache size: 0, Positive unconditional cache size: 5, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, 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: [L681] 0 int glob1 = 0; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, id={5:0}, mutex1={3:0}, mutex2={4:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L699] CALL 0 __VERIFIER_assert(!(glob1 == 0)) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, arg={0:0}, cond=0, glob1=0, mutex1={3:0}, mutex2={4:0}] - UnprovableResult [Line: 697]: 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, 81 locations, 2 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: 2.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred 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, 4 NumberOfCodeBlocks, 4 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 19:02:02,061 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...