/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/36-apron_41-threadenter-no-locals_unknown_1_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 02:10:59,679 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 02:10:59,681 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 02:10:59,701 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 02:10:59,701 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 02:10:59,702 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 02:10:59,703 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 02:10:59,704 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 02:10:59,707 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 02:10:59,711 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 02:10:59,712 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 02:10:59,714 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 02:10:59,714 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 02:10:59,721 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 02:10:59,722 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 02:10:59,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 02:10:59,724 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 02:10:59,725 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 02:10:59,727 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 02:10:59,731 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 02:10:59,732 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 02:10:59,732 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 02:10:59,733 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 02:10:59,734 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 02:10:59,740 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-28 02:10:59,740 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-28 02:10:59,741 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-28 02:10:59,742 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-28 02:10:59,742 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-28 02:10:59,742 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2023-01-28 02:10:59,746 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 02:10:59,746 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 02:10:59,747 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 02:10:59,748 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 02:10:59,773 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 02:10:59,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 02:10:59,775 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 02:10:59,775 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 02:10:59,775 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 02:10:59,775 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 02:10:59,776 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 02:10:59,776 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 02:10:59,776 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 02:10:59,776 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 02:10:59,776 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 02:10:59,776 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 02:10:59,776 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 02:10:59,777 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 02:10:59,777 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 02:10:59,777 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 02:10:59,777 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 02:10:59,777 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 02:10:59,777 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 02:10:59,777 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 02:10:59,777 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 02:10:59,777 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 02:10:59,777 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 02:10:59,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 02:10:59,777 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 02:10:59,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 02:10:59,778 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 02:10:59,778 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 02:10:59,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 02:10:59,778 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 02:10:59,778 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 02:10:59,778 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-01-28 02:10:59,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 02:10:59,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 02:10:59,984 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 02:10:59,985 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 02:10:59,985 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 02:10:59,986 INFO L432 ainManager$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 [2023-01-28 02:11:00,958 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 02:11:01,153 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 02:11:01,153 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i [2023-01-28 02:11:01,168 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b6031109/6efb9146b6b4448bb92b328c77705e3c/FLAG63ee4b7c7 [2023-01-28 02:11:01,188 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b6031109/6efb9146b6b4448bb92b328c77705e3c [2023-01-28 02:11:01,189 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 02:11:01,190 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 02:11:01,192 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 02:11:01,192 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 02:11:01,193 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 02:11:01,194 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 02:11:01" (1/1) ... [2023-01-28 02:11:01,194 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16f391f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:11:01, skipping insertion in model container [2023-01-28 02:11:01,195 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 02:11:01" (1/1) ... [2023-01-28 02:11:01,199 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 02:11:01,223 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 02:11:01,312 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] [2023-01-28 02:11:01,440 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 02:11:01,447 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 02:11:01,456 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] [2023-01-28 02:11:01,484 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 02:11:01,510 INFO L208 MainTranslator]: Completed translation [2023-01-28 02:11:01,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:11:01 WrapperNode [2023-01-28 02:11:01,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 02:11:01,512 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 02:11:01,512 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 02:11:01,512 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 02:11:01,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:11:01" (1/1) ... [2023-01-28 02:11:01,533 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:11:01" (1/1) ... [2023-01-28 02:11:01,548 INFO L138 Inliner]: procedures = 162, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 36 [2023-01-28 02:11:01,548 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 02:11:01,549 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 02:11:01,549 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 02:11:01,549 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 02:11:01,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:11:01" (1/1) ... [2023-01-28 02:11:01,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:11:01" (1/1) ... [2023-01-28 02:11:01,562 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:11:01" (1/1) ... [2023-01-28 02:11:01,562 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:11:01" (1/1) ... [2023-01-28 02:11:01,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:11:01" (1/1) ... [2023-01-28 02:11:01,574 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:11:01" (1/1) ... [2023-01-28 02:11:01,575 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:11:01" (1/1) ... [2023-01-28 02:11:01,576 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:11:01" (1/1) ... [2023-01-28 02:11:01,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 02:11:01,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 02:11:01,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 02:11:01,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 02:11:01,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:11:01" (1/1) ... [2023-01-28 02:11:01,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 02:11:01,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 02:11:01,610 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 02:11:01,624 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 02:11:01,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 02:11:01,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 02:11:01,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 02:11:01,640 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-01-28 02:11:01,640 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-01-28 02:11:01,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 02:11:01,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 02:11:01,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 02:11:01,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 02:11:01,641 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 02:11:01,767 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 02:11:01,768 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 02:11:01,839 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 02:11:01,843 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 02:11:01,843 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-28 02:11:01,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 02:11:01 BoogieIcfgContainer [2023-01-28 02:11:01,845 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 02:11:01,846 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 02:11:01,846 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 02:11:01,848 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 02:11:01,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 02:11:01" (1/3) ... [2023-01-28 02:11:01,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d05a134 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 02:11:01, skipping insertion in model container [2023-01-28 02:11:01,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:11:01" (2/3) ... [2023-01-28 02:11:01,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d05a134 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 02:11:01, skipping insertion in model container [2023-01-28 02:11:01,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 02:11:01" (3/3) ... [2023-01-28 02:11:01,850 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_neg.i [2023-01-28 02:11:01,862 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 02:11:01,862 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 02:11:01,862 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 02:11:01,887 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 02:11:01,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 38 transitions, 81 flow [2023-01-28 02:11:01,927 INFO L130 PetriNetUnfolder]: 1/37 cut-off events. [2023-01-28 02:11:01,928 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 02:11:01,930 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. [2023-01-28 02:11:01,930 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 38 transitions, 81 flow [2023-01-28 02:11:01,932 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 36 places, 32 transitions, 67 flow [2023-01-28 02:11:01,935 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 02:11:01,941 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 32 transitions, 67 flow [2023-01-28 02:11:01,942 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 32 transitions, 67 flow [2023-01-28 02:11:01,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 32 transitions, 67 flow [2023-01-28 02:11:01,950 INFO L130 PetriNetUnfolder]: 0/32 cut-off events. [2023-01-28 02:11:01,950 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 02:11:01,951 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. [2023-01-28 02:11:01,951 INFO L119 LiptonReduction]: Number of co-enabled transitions 140 [2023-01-28 02:11:02,780 INFO L134 LiptonReduction]: Checked pairs total: 88 [2023-01-28 02:11:02,780 INFO L136 LiptonReduction]: Total number of compositions: 28 [2023-01-28 02:11:02,796 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 02:11:02,803 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;@4670a7b2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 02:11:02,804 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-01-28 02:11:02,807 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2023-01-28 02:11:02,807 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 02:11:02,807 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 02:11:02,808 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-01-28 02:11:02,808 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-28 02:11:02,813 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 02:11:02,813 INFO L85 PathProgramCache]: Analyzing trace with hash 153046, now seen corresponding path program 1 times [2023-01-28 02:11:02,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 02:11:02,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538790768] [2023-01-28 02:11:02,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 02:11:02,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 02:11:02,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 02:11:02,901 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 02:11:02,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 02:11:02,943 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 02:11:02,944 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 02:11:02,945 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-01-28 02:11:02,946 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-01-28 02:11:02,946 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2023-01-28 02:11:02,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 02:11:02,949 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 02:11:02,957 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 02:11:02,957 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 02:11:02,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 02:11:02 BasicIcfg [2023-01-28 02:11:02,972 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 02:11:02,972 INFO L158 Benchmark]: Toolchain (without parser) took 1781.98ms. Allocated memory is still 371.2MB. Free memory was 338.7MB in the beginning and 294.1MB in the end (delta: 44.6MB). Peak memory consumption was 45.4MB. Max. memory is 16.0GB. [2023-01-28 02:11:02,973 INFO L158 Benchmark]: CDTParser took 0.10ms. 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 02:11:02,974 INFO L158 Benchmark]: CACSL2BoogieTranslator took 319.52ms. Allocated memory is still 371.2MB. Free memory was 338.7MB in the beginning and 320.2MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-01-28 02:11:02,977 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.88ms. Allocated memory is still 371.2MB. Free memory was 320.2MB in the beginning and 318.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 02:11:02,978 INFO L158 Benchmark]: Boogie Preprocessor took 28.27ms. Allocated memory is still 371.2MB. Free memory was 318.5MB in the beginning and 317.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 02:11:02,978 INFO L158 Benchmark]: RCFGBuilder took 267.02ms. Allocated memory is still 371.2MB. Free memory was 317.4MB in the beginning and 306.5MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-01-28 02:11:02,979 INFO L158 Benchmark]: TraceAbstraction took 1125.63ms. Allocated memory is still 371.2MB. Free memory was 305.9MB in the beginning and 294.1MB in the end (delta: 11.8MB). Peak memory consumption was 14.0MB. Max. memory is 16.0GB. [2023-01-28 02:11:02,980 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 255.9MB. Free memory is still 213.6MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 319.52ms. Allocated memory is still 371.2MB. Free memory was 338.7MB in the beginning and 320.2MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 36.88ms. Allocated memory is still 371.2MB. Free memory was 320.2MB in the beginning and 318.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 28.27ms. Allocated memory is still 371.2MB. Free memory was 318.5MB in the beginning and 317.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 267.02ms. Allocated memory is still 371.2MB. Free memory was 317.4MB in the beginning and 306.5MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * TraceAbstraction took 1125.63ms. Allocated memory is still 371.2MB. Free memory was 305.9MB in the beginning and 294.1MB in the end (delta: 11.8MB). Peak memory consumption was 14.0MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.8s, 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: 1.0s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.9s, 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! [2023-01-28 02:11:02,998 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...