/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 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 01:27:33,721 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 01:27:33,722 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 01:27:33,744 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 01:27:33,745 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 01:27:33,745 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 01:27:33,746 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 01:27:33,748 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 01:27:33,749 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 01:27:33,750 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 01:27:33,750 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 01:27:33,751 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 01:27:33,752 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 01:27:33,752 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 01:27:33,753 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 01:27:33,754 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 01:27:33,755 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 01:27:33,755 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 01:27:33,757 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 01:27:33,758 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 01:27:33,759 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 01:27:33,761 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 01:27:33,763 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 01:27:33,763 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 01:27:33,770 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-28 01:27:33,776 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 01:27:33,776 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 01:27:33,777 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 01:27:33,782 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 [2023-01-28 01:27:33,811 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 01:27:33,811 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 01:27:33,812 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 01:27:33,812 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 01:27:33,816 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 01:27:33,816 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 01:27:33,817 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 01:27:33,817 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 01:27:33,817 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 01:27:33,817 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 01:27:33,818 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 01:27:33,818 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 01:27:33,818 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 01:27:33,818 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 01:27:33,818 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 01:27:33,818 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 01:27:33,819 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 01:27:33,819 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 01:27:33,819 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 01:27:33,819 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 01:27:33,819 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 01:27:33,819 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 01:27:33,819 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 01:27:33,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 01:27:33,820 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 01:27:33,820 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 01:27:33,820 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 01:27:33,820 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 01:27:33,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 01:27:33,821 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 01:27:33,821 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 01:27:33,821 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-01-28 01:27:34,049 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 01:27:34,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 01:27:34,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 01:27:34,077 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 01:27:34,077 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 01:27:34,078 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i [2023-01-28 01:27:35,190 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 01:27:35,387 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 01:27:35,388 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i [2023-01-28 01:27:35,399 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1b4d6f99/b74ba67d514b460d84d30b9b6131b577/FLAG7a6b500a5 [2023-01-28 01:27:35,410 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1b4d6f99/b74ba67d514b460d84d30b9b6131b577 [2023-01-28 01:27:35,412 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 01:27:35,414 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 01:27:35,415 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 01:27:35,415 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 01:27:35,417 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 01:27:35,418 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 01:27:35" (1/1) ... [2023-01-28 01:27:35,418 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d8e4814 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:35, skipping insertion in model container [2023-01-28 01:27:35,419 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 01:27:35" (1/1) ... [2023-01-28 01:27:35,424 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 01:27:35,466 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 01:27:35,601 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_2_pos.i[1103,1116] [2023-01-28 01:27:35,699 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 01:27:35,716 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 01:27:35,727 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_2_pos.i[1103,1116] [2023-01-28 01:27:35,780 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 01:27:35,816 INFO L208 MainTranslator]: Completed translation [2023-01-28 01:27:35,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:35 WrapperNode [2023-01-28 01:27:35,817 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 01:27:35,818 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 01:27:35,818 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 01:27:35,818 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 01:27:35,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:35" (1/1) ... [2023-01-28 01:27:35,851 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:35" (1/1) ... [2023-01-28 01:27:35,872 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2023-01-28 01:27:35,872 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 01:27:35,873 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 01:27:35,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 01:27:35,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 01:27:35,880 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:35" (1/1) ... [2023-01-28 01:27:35,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:35" (1/1) ... [2023-01-28 01:27:35,886 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:35" (1/1) ... [2023-01-28 01:27:35,886 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:35" (1/1) ... [2023-01-28 01:27:35,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:35" (1/1) ... [2023-01-28 01:27:35,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:35" (1/1) ... [2023-01-28 01:27:35,905 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:35" (1/1) ... [2023-01-28 01:27:35,906 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:35" (1/1) ... [2023-01-28 01:27:35,908 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 01:27:35,908 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 01:27:35,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 01:27:35,909 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 01:27:35,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:35" (1/1) ... [2023-01-28 01:27:35,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 01:27:35,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 01:27:35,942 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) [2023-01-28 01:27:35,949 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 [2023-01-28 01:27:35,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 01:27:35,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 01:27:35,974 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-28 01:27:35,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 01:27:35,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 01:27:35,974 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-01-28 01:27:35,974 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-01-28 01:27:35,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 01:27:35,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 01:27:35,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 01:27:35,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 01:27:35,977 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 01:27:36,125 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 01:27:36,127 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 01:27:36,276 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 01:27:36,281 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 01:27:36,281 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-28 01:27:36,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 01:27:36 BoogieIcfgContainer [2023-01-28 01:27:36,283 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 01:27:36,285 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 01:27:36,285 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 01:27:36,288 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 01:27:36,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 01:27:35" (1/3) ... [2023-01-28 01:27:36,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66049121 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 01:27:36, skipping insertion in model container [2023-01-28 01:27:36,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:35" (2/3) ... [2023-01-28 01:27:36,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66049121 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 01:27:36, skipping insertion in model container [2023-01-28 01:27:36,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 01:27:36" (3/3) ... [2023-01-28 01:27:36,294 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_2_pos.i [2023-01-28 01:27:36,309 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 01:27:36,309 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 01:27:36,309 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 01:27:36,380 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-01-28 01:27:36,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 65 transitions, 138 flow [2023-01-28 01:27:36,465 INFO L130 PetriNetUnfolder]: 1/64 cut-off events. [2023-01-28 01:27:36,465 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-28 01:27:36,469 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. [2023-01-28 01:27:36,469 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 65 transitions, 138 flow [2023-01-28 01:27:36,472 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 52 transitions, 107 flow [2023-01-28 01:27:36,475 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 01:27:36,482 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 52 transitions, 107 flow [2023-01-28 01:27:36,485 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 52 transitions, 107 flow [2023-01-28 01:27:36,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 52 transitions, 107 flow [2023-01-28 01:27:36,518 INFO L130 PetriNetUnfolder]: 0/52 cut-off events. [2023-01-28 01:27:36,518 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 01:27:36,519 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. [2023-01-28 01:27:36,519 INFO L119 LiptonReduction]: Number of co-enabled transitions 252 [2023-01-28 01:27:38,457 INFO L134 LiptonReduction]: Checked pairs total: 530 [2023-01-28 01:27:38,457 INFO L136 LiptonReduction]: Total number of compositions: 40 [2023-01-28 01:27:38,468 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 01:27:38,473 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;@7ea7eafd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 01:27:38,474 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-01-28 01:27:38,476 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2023-01-28 01:27:38,476 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 01:27:38,476 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:27:38,477 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-01-28 01:27:38,477 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 01:27:38,482 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:27:38,482 INFO L85 PathProgramCache]: Analyzing trace with hash 6763455, now seen corresponding path program 1 times [2023-01-28 01:27:38,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:27:38,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450436883] [2023-01-28 01:27:38,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:27:38,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:27:38,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:27:38,602 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 01:27:38,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:27:38,643 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 01:27:38,645 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 01:27:38,647 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-01-28 01:27:38,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-01-28 01:27:38,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 01:27:38,652 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 01:27:38,662 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 01:27:38,662 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 01:27:38,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 01:27:38 BasicIcfg [2023-01-28 01:27:38,678 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 01:27:38,679 INFO L158 Benchmark]: Toolchain (without parser) took 3265.31ms. Allocated memory is still 331.4MB. Free memory was 288.4MB in the beginning and 235.8MB in the end (delta: 52.6MB). Peak memory consumption was 53.3MB. Max. memory is 16.0GB. [2023-01-28 01:27:38,679 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 255.9MB. Free memory is still 213.6MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 01:27:38,680 INFO L158 Benchmark]: CACSL2BoogieTranslator took 402.86ms. Allocated memory is still 331.4MB. Free memory was 288.1MB in the beginning and 269.4MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-01-28 01:27:38,680 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.43ms. Allocated memory is still 331.4MB. Free memory was 269.4MB in the beginning and 267.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 01:27:38,681 INFO L158 Benchmark]: Boogie Preprocessor took 34.77ms. Allocated memory is still 331.4MB. Free memory was 267.3MB in the beginning and 266.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 01:27:38,681 INFO L158 Benchmark]: RCFGBuilder took 374.59ms. Allocated memory is still 331.4MB. Free memory was 266.2MB in the beginning and 253.1MB in the end (delta: 13.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-01-28 01:27:38,681 INFO L158 Benchmark]: TraceAbstraction took 2393.25ms. Allocated memory is still 331.4MB. Free memory was 252.4MB in the beginning and 235.8MB in the end (delta: 16.6MB). Peak memory consumption was 17.7MB. Max. memory is 16.0GB. [2023-01-28 01:27:38,683 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 255.9MB. Free memory is still 213.6MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 402.86ms. Allocated memory is still 331.4MB. Free memory was 288.1MB in the beginning and 269.4MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 54.43ms. Allocated memory is still 331.4MB. Free memory was 269.4MB in the beginning and 267.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 34.77ms. Allocated memory is still 331.4MB. Free memory was 267.3MB in the beginning and 266.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 374.59ms. Allocated memory is still 331.4MB. Free memory was 266.2MB in the beginning and 253.1MB in the end (delta: 13.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 2393.25ms. Allocated memory is still 331.4MB. Free memory was 252.4MB in the beginning and 235.8MB in the end (delta: 16.6MB). Peak memory consumption was 17.7MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.0s, 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={6:0}, mutex1={3:0}, mutex2={4:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L699] CALL 0 __VERIFIER_assert(glob1 == 5) [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: 2.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, 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! [2023-01-28 01:27:38,700 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...