/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 04:59:18,464 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 04:59:18,466 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 04:59:18,503 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 04:59:18,504 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 04:59:18,506 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 04:59:18,509 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 04:59:18,513 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 04:59:18,519 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 04:59:18,525 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 04:59:18,526 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 04:59:18,528 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 04:59:18,528 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 04:59:18,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 04:59:18,547 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 04:59:18,548 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 04:59:18,549 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 04:59:18,549 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 04:59:18,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 04:59:18,556 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 04:59:18,557 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 04:59:18,559 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 04:59:18,559 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 04:59:18,561 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 04:59:18,567 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-06 04:59:18,571 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 04:59:18,576 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 04:59:18,578 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 04:59:18,578 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 04:59:18,579 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 04:59:18,579 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 04:59:18,580 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 04:59:18,580 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 04:59:18,580 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 04:59:18,581 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 04:59:18,581 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 04:59:18,582 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-RepeatedSemanticLbeWithPredicates.epf [2022-12-06 04:59:18,613 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 04:59:18,614 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 04:59:18,615 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 04:59:18,616 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 04:59:18,616 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 04:59:18,616 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 04:59:18,617 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 04:59:18,617 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 04:59:18,617 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 04:59:18,617 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 04:59:18,618 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 04:59:18,618 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 04:59:18,618 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 04:59:18,618 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 04:59:18,618 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 04:59:18,619 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 04:59:18,619 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 04:59:18,619 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 04:59:18,619 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 04:59:18,619 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 04:59:18,619 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 04:59:18,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 04:59:18,620 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 04:59:18,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 04:59:18,620 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 04:59:18,620 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 04:59:18,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 04:59:18,620 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 04:59:18,621 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 04:59:18,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 04:59:18,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 04:59:18,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 04:59:18,965 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 04:59:18,966 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 04:59:18,968 INFO L432 ainManager$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_pos.i [2022-12-06 04:59:20,051 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 04:59:20,364 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 04:59:20,364 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2022-12-06 04:59:20,385 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a01dd69c/aff7a87dc4484f8cbbbe7f8d73d08e2b/FLAGfa9f8cd10 [2022-12-06 04:59:20,404 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a01dd69c/aff7a87dc4484f8cbbbe7f8d73d08e2b [2022-12-06 04:59:20,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 04:59:20,408 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 04:59:20,410 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 04:59:20,410 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 04:59:20,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 04:59:20,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:59:20" (1/1) ... [2022-12-06 04:59:20,414 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54fd3845 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:20, skipping insertion in model container [2022-12-06 04:59:20,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:59:20" (1/1) ... [2022-12-06 04:59:20,420 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 04:59:20,463 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 04:59:20,615 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i[1102,1115] [2022-12-06 04:59:20,776 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 04:59:20,784 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 04:59:20,796 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i[1102,1115] [2022-12-06 04:59:20,830 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 04:59:20,863 INFO L208 MainTranslator]: Completed translation [2022-12-06 04:59:20,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:20 WrapperNode [2022-12-06 04:59:20,864 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 04:59:20,865 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 04:59:20,865 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 04:59:20,866 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 04:59:20,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:20" (1/1) ... [2022-12-06 04:59:20,896 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:20" (1/1) ... [2022-12-06 04:59:20,917 INFO L138 Inliner]: procedures = 162, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-12-06 04:59:20,917 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 04:59:20,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 04:59:20,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 04:59:20,918 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 04:59:20,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:20" (1/1) ... [2022-12-06 04:59:20,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:20" (1/1) ... [2022-12-06 04:59:20,935 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:20" (1/1) ... [2022-12-06 04:59:20,935 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:20" (1/1) ... [2022-12-06 04:59:20,944 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:20" (1/1) ... [2022-12-06 04:59:20,945 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:20" (1/1) ... [2022-12-06 04:59:20,946 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:20" (1/1) ... [2022-12-06 04:59:20,947 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:20" (1/1) ... [2022-12-06 04:59:20,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 04:59:20,950 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 04:59:20,950 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 04:59:20,950 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 04:59:20,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:20" (1/1) ... [2022-12-06 04:59:20,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 04:59:20,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 04:59:20,984 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-06 04:59:20,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-06 04:59:21,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 04:59:21,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 04:59:21,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 04:59:21,023 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-06 04:59:21,023 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-06 04:59:21,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 04:59:21,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 04:59:21,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 04:59:21,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 04:59:21,025 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 04:59:21,195 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 04:59:21,197 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 04:59:21,304 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 04:59:21,324 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 04:59:21,324 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 04:59:21,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:59:21 BoogieIcfgContainer [2022-12-06 04:59:21,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 04:59:21,328 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 04:59:21,328 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 04:59:21,331 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 04:59:21,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:59:20" (1/3) ... [2022-12-06 04:59:21,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@680eb905 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:59:21, skipping insertion in model container [2022-12-06 04:59:21,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:20" (2/3) ... [2022-12-06 04:59:21,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@680eb905 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:59:21, skipping insertion in model container [2022-12-06 04:59:21,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:59:21" (3/3) ... [2022-12-06 04:59:21,333 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_pos.i [2022-12-06 04:59:21,351 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 04:59:21,351 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 04:59:21,351 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 04:59:21,403 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-06 04:59:21,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 37 transitions, 79 flow [2022-12-06 04:59:21,485 INFO L130 PetriNetUnfolder]: 1/36 cut-off events. [2022-12-06 04:59:21,485 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:59:21,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 36 events. 1/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 20 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2022-12-06 04:59:21,489 INFO L82 GeneralOperation]: Start removeDead. Operand has 40 places, 37 transitions, 79 flow [2022-12-06 04:59:21,493 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 31 transitions, 65 flow [2022-12-06 04:59:21,495 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:59:21,519 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 31 transitions, 65 flow [2022-12-06 04:59:21,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 31 transitions, 65 flow [2022-12-06 04:59:21,548 INFO L130 PetriNetUnfolder]: 0/31 cut-off events. [2022-12-06 04:59:21,549 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:59:21,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 31 events. 0/31 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 13 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-06 04:59:21,550 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 31 transitions, 65 flow [2022-12-06 04:59:21,551 INFO L188 LiptonReduction]: Number of co-enabled transitions 126 [2022-12-06 04:59:23,065 INFO L203 LiptonReduction]: Total number of compositions: 27 [2022-12-06 04:59:23,089 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 04:59:23,096 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=REPEATED_LIPTON_PN, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@25198db2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 04:59:23,096 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-06 04:59:23,099 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2022-12-06 04:59:23,099 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:59:23,099 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:59:23,099 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-06 04:59:23,100 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-06 04:59:23,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:59:23,104 INFO L85 PathProgramCache]: Analyzing trace with hash 149104, now seen corresponding path program 1 times [2022-12-06 04:59:23,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:59:23,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804932565] [2022-12-06 04:59:23,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:59:23,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:59:23,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 04:59:23,201 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-06 04:59:23,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 04:59:23,253 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-06 04:59:23,254 INFO L373 BasicCegarLoop]: Counterexample is feasible [2022-12-06 04:59:23,255 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-06 04:59:23,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-06 04:59:23,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-12-06 04:59:23,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 04:59:23,258 INFO L458 BasicCegarLoop]: Path program histogram: [1] [2022-12-06 04:59:23,265 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 04:59:23,265 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 04:59:23,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:59:23 BasicIcfg [2022-12-06 04:59:23,282 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 04:59:23,284 INFO L158 Benchmark]: Toolchain (without parser) took 2875.39ms. Allocated memory was 194.0MB in the beginning and 278.9MB in the end (delta: 84.9MB). Free memory was 169.0MB in the beginning and 200.0MB in the end (delta: -30.9MB). Peak memory consumption was 53.5MB. Max. memory is 8.0GB. [2022-12-06 04:59:23,285 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 194.0MB. Free memory is still 171.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 04:59:23,288 INFO L158 Benchmark]: CACSL2BoogieTranslator took 454.59ms. Allocated memory is still 194.0MB. Free memory was 169.0MB in the beginning and 150.7MB in the end (delta: 18.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2022-12-06 04:59:23,289 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.19ms. Allocated memory is still 194.0MB. Free memory was 150.7MB in the beginning and 148.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 04:59:23,289 INFO L158 Benchmark]: Boogie Preprocessor took 30.86ms. Allocated memory is still 194.0MB. Free memory was 148.6MB in the beginning and 147.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 04:59:23,291 INFO L158 Benchmark]: RCFGBuilder took 376.55ms. Allocated memory is still 194.0MB. Free memory was 147.5MB in the beginning and 136.5MB in the end (delta: 11.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-12-06 04:59:23,291 INFO L158 Benchmark]: TraceAbstraction took 1954.13ms. Allocated memory was 194.0MB in the beginning and 278.9MB in the end (delta: 84.9MB). Free memory was 136.0MB in the beginning and 200.0MB in the end (delta: -64.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2022-12-06 04:59:23,297 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 194.0MB. Free memory is still 171.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 454.59ms. Allocated memory is still 194.0MB. Free memory was 169.0MB in the beginning and 150.7MB in the end (delta: 18.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 52.19ms. Allocated memory is still 194.0MB. Free memory was 150.7MB in the beginning and 148.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.86ms. Allocated memory is still 194.0MB. Free memory was 148.6MB in the beginning and 147.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 376.55ms. Allocated memory is still 194.0MB. Free memory was 147.5MB in the beginning and 136.5MB in the end (delta: 11.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 1954.13ms. Allocated memory was 194.0MB in the beginning and 278.9MB in the end (delta: 84.9MB). Free memory was 136.0MB in the beginning and 200.0MB in the end (delta: -64.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.5s, 35 PlacesBefore, 8 PlacesAfterwards, 31 TransitionsBefore, 4 TransitionsAfterwards, 126 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 13 TrivialYvCompositions, 14 ConcurrentYvCompositions, 0 ChoiceCompositions, 27 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 62, independent: 62, independent conditional: 62, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 62, independent: 62, independent conditional: 0, independent unconditional: 62, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 62, independent: 62, independent conditional: 0, independent unconditional: 62, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 62, independent: 62, independent conditional: 0, independent unconditional: 62, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 62, independent: 62, independent conditional: 0, independent unconditional: 62, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 62, independent: 62, independent conditional: 0, independent unconditional: 62, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 62, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 62, unknown conditional: 0, unknown unconditional: 62] , Statistics on independence cache: Total cache size (in pairs): 110, Positive cache size: 110, Positive conditional cache size: 0, Positive unconditional cache size: 110, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L688] 0 int x = 3; [L689] 0 pthread_t id; [L690] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id={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, 52 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-06 04:59:23,318 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...