/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-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 16:56:54,397 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 16:56:54,398 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 16:56:54,421 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 16:56:54,422 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 16:56:54,424 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 16:56:54,426 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 16:56:54,429 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 16:56:54,442 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 16:56:54,443 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 16:56:54,444 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 16:56:54,445 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 16:56:54,446 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 16:56:54,450 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 16:56:54,452 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 16:56:54,455 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 16:56:54,456 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 16:56:54,456 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 16:56:54,458 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 16:56:54,463 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 16:56:54,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 16:56:54,465 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 16:56:54,465 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 16:56:54,466 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 16:56:54,471 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 16:56:54,471 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 16:56:54,471 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 16:56:54,473 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 16:56:54,473 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 16:56:54,473 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-12-06 16:56:54,477 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 16:56:54,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 16:56:54,478 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 16:56:54,479 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-NoLbe.epf [2022-12-06 16:56:54,503 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 16:56:54,503 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 16:56:54,504 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 16:56:54,505 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 16:56:54,505 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 16:56:54,506 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 16:56:54,506 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 16:56:54,506 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 16:56:54,506 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 16:56:54,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 16:56:54,507 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 16:56:54,507 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 16:56:54,507 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 16:56:54,507 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 16:56:54,507 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 16:56:54,507 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 16:56:54,507 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 16:56:54,507 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 16:56:54,507 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 16:56:54,508 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 16:56:54,508 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 16:56:54,508 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 16:56:54,508 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 16:56:54,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:56:54,508 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 16:56:54,508 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 16:56:54,508 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 16:56:54,508 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 16:56:54,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 16:56:54,509 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 16:56:54,509 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 16:56:54,509 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 16:56:54,747 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 16:56:54,768 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 16:56:54,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 16:56:54,770 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 16:56:54,777 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 16:56:54,778 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i [2022-12-06 16:56:55,799 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 16:56:56,030 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 16:56:56,030 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i [2022-12-06 16:56:56,039 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e193d637f/0189aaec1fbc4cf2bec17624dbd1631b/FLAG6706f61e3 [2022-12-06 16:56:56,048 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e193d637f/0189aaec1fbc4cf2bec17624dbd1631b [2022-12-06 16:56:56,049 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 16:56:56,050 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 16:56:56,051 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 16:56:56,051 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 16:56:56,052 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 16:56:56,053 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:56:56" (1/1) ... [2022-12-06 16:56:56,053 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b572162 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:56, skipping insertion in model container [2022-12-06 16:56:56,053 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:56:56" (1/1) ... [2022-12-06 16:56:56,057 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 16:56:56,087 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 16:56:56,202 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/13-privatized_19-publish-precision_unknown_1_pos.i[1103,1116] [2022-12-06 16:56:56,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:56:56,326 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 16:56:56,336 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/13-privatized_19-publish-precision_unknown_1_pos.i[1103,1116] [2022-12-06 16:56:56,377 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:56:56,413 INFO L208 MainTranslator]: Completed translation [2022-12-06 16:56:56,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:56 WrapperNode [2022-12-06 16:56:56,414 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 16:56:56,415 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 16:56:56,415 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 16:56:56,415 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 16:56:56,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:56" (1/1) ... [2022-12-06 16:56:56,444 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:56" (1/1) ... [2022-12-06 16:56:56,462 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2022-12-06 16:56:56,463 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 16:56:56,463 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 16:56:56,463 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 16:56:56,463 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 16:56:56,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:56" (1/1) ... [2022-12-06 16:56:56,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:56" (1/1) ... [2022-12-06 16:56:56,474 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:56" (1/1) ... [2022-12-06 16:56:56,474 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:56" (1/1) ... [2022-12-06 16:56:56,487 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:56" (1/1) ... [2022-12-06 16:56:56,488 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:56" (1/1) ... [2022-12-06 16:56:56,492 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:56" (1/1) ... [2022-12-06 16:56:56,493 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:56" (1/1) ... [2022-12-06 16:56:56,495 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 16:56:56,495 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 16:56:56,495 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 16:56:56,495 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 16:56:56,496 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:56" (1/1) ... [2022-12-06 16:56:56,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:56:56,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:56:56,536 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 16:56:56,565 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 16:56:56,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 16:56:56,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 16:56:56,584 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-06 16:56:56,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 16:56:56,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 16:56:56,584 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-06 16:56:56,584 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-06 16:56:56,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 16:56:56,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 16:56:56,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 16:56:56,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 16:56:56,586 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 16:56:56,682 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 16:56:56,683 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 16:56:56,821 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 16:56:56,825 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 16:56:56,825 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 16:56:56,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:56:56 BoogieIcfgContainer [2022-12-06 16:56:56,826 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 16:56:56,830 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 16:56:56,830 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 16:56:56,832 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 16:56:56,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:56:56" (1/3) ... [2022-12-06 16:56:56,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b686a29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:56:56, skipping insertion in model container [2022-12-06 16:56:56,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:56:56" (2/3) ... [2022-12-06 16:56:56,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b686a29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:56:56, skipping insertion in model container [2022-12-06 16:56:56,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:56:56" (3/3) ... [2022-12-06 16:56:56,834 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_1_pos.i [2022-12-06 16:56:56,846 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 16:56:56,846 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 16:56:56,846 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 16:56:56,898 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-06 16:56:56,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 65 transitions, 138 flow [2022-12-06 16:56:56,966 INFO L130 PetriNetUnfolder]: 1/64 cut-off events. [2022-12-06 16:56:56,966 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 16:56:56,969 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. [2022-12-06 16:56:56,969 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 65 transitions, 138 flow [2022-12-06 16:56:56,972 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 52 transitions, 107 flow [2022-12-06 16:56:56,982 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 16:56:56,987 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;@7b2527a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 16:56:56,988 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-06 16:56:57,010 INFO L130 PetriNetUnfolder]: 0/45 cut-off events. [2022-12-06 16:56:57,010 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:56:57,010 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:56:57,011 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:56:57,011 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 16:56:57,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:56:57,014 INFO L85 PathProgramCache]: Analyzing trace with hash 105341448, now seen corresponding path program 1 times [2022-12-06 16:56:57,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:56:57,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558555813] [2022-12-06 16:56:57,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:56:57,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:56:57,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:56:57,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:56:57,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:56:57,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558555813] [2022-12-06 16:56:57,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558555813] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:56:57,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:56:57,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-06 16:56:57,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692054782] [2022-12-06 16:56:57,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:56:57,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 16:56:57,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:56:57,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 16:56:57,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-06 16:56:57,448 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 65 [2022-12-06 16:56:57,450 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 52 transitions, 107 flow. Second operand has 5 states, 5 states have (on average 54.2) internal successors, (271), 5 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:56:57,451 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:56:57,451 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 65 [2022-12-06 16:56:57,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:56:57,533 INFO L130 PetriNetUnfolder]: 8/95 cut-off events. [2022-12-06 16:56:57,533 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 16:56:57,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 95 events. 8/95 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 214 event pairs, 0 based on Foata normal form. 3/98 useless extension candidates. Maximal degree in co-relation 93. Up to 10 conditions per place. [2022-12-06 16:56:57,535 INFO L137 encePairwiseOnDemand]: 59/65 looper letters, 8 selfloop transitions, 3 changer transitions 9/64 dead transitions. [2022-12-06 16:56:57,535 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 64 transitions, 171 flow [2022-12-06 16:56:57,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-06 16:56:57,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-06 16:56:57,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 393 transitions. [2022-12-06 16:56:57,553 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8637362637362638 [2022-12-06 16:56:57,555 INFO L294 CegarLoopForPetriNet]: 56 programPoint places, 6 predicate places. [2022-12-06 16:56:57,556 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 64 transitions, 171 flow [2022-12-06 16:56:57,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.2) internal successors, (271), 5 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:56:57,556 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:56:57,556 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:56:57,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 16:56:57,556 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 16:56:57,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:56:57,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1870291707, now seen corresponding path program 1 times [2022-12-06 16:56:57,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:56:57,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892405479] [2022-12-06 16:56:57,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:56:57,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:56:57,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:56:57,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:56:57,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:56:57,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892405479] [2022-12-06 16:56:57,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892405479] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:56:57,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:56:57,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 16:56:57,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084560766] [2022-12-06 16:56:57,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:56:57,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 16:56:57,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:56:57,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 16:56:57,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 16:56:57,710 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 65 [2022-12-06 16:56:57,711 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 64 transitions, 171 flow. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:56:57,711 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:56:57,711 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 65 [2022-12-06 16:56:57,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:56:57,763 INFO L130 PetriNetUnfolder]: 1/76 cut-off events. [2022-12-06 16:56:57,763 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 16:56:57,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 76 events. 1/76 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 95 event pairs, 0 based on Foata normal form. 4/80 useless extension candidates. Maximal degree in co-relation 78. Up to 13 conditions per place. [2022-12-06 16:56:57,764 INFO L137 encePairwiseOnDemand]: 59/65 looper letters, 8 selfloop transitions, 3 changer transitions 12/57 dead transitions. [2022-12-06 16:56:57,764 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 57 transitions, 171 flow [2022-12-06 16:56:57,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 16:56:57,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 16:56:57,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 160 transitions. [2022-12-06 16:56:57,772 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8205128205128205 [2022-12-06 16:56:57,773 INFO L294 CegarLoopForPetriNet]: 56 programPoint places, 6 predicate places. [2022-12-06 16:56:57,774 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 57 transitions, 171 flow [2022-12-06 16:56:57,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:56:57,774 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:56:57,774 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:56:57,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 16:56:57,774 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 16:56:57,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:56:57,775 INFO L85 PathProgramCache]: Analyzing trace with hash 579730692, now seen corresponding path program 1 times [2022-12-06 16:56:57,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:56:57,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783283286] [2022-12-06 16:56:57,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:56:57,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:56:57,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 16:56:57,803 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-06 16:56:57,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 16:56:57,846 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-06 16:56:57,846 INFO L373 BasicCegarLoop]: Counterexample is feasible [2022-12-06 16:56:57,847 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-06 16:56:57,848 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-06 16:56:57,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 16:56:57,848 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-06 16:56:57,853 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 16:56:57,853 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 16:56:57,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:56:57 BasicIcfg [2022-12-06 16:56:57,881 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 16:56:57,882 INFO L158 Benchmark]: Toolchain (without parser) took 1831.50ms. Allocated memory was 208.7MB in the beginning and 250.6MB in the end (delta: 41.9MB). Free memory was 183.6MB in the beginning and 173.2MB in the end (delta: 10.3MB). Peak memory consumption was 52.9MB. Max. memory is 8.0GB. [2022-12-06 16:56:57,883 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 208.7MB. Free memory is still 184.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 16:56:57,884 INFO L158 Benchmark]: CACSL2BoogieTranslator took 363.15ms. Allocated memory is still 208.7MB. Free memory was 183.2MB in the beginning and 164.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-06 16:56:57,884 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.32ms. Allocated memory is still 208.7MB. Free memory was 164.3MB in the beginning and 162.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 16:56:57,887 INFO L158 Benchmark]: Boogie Preprocessor took 31.28ms. Allocated memory is still 208.7MB. Free memory was 162.6MB in the beginning and 161.1MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 16:56:57,887 INFO L158 Benchmark]: RCFGBuilder took 331.40ms. Allocated memory is still 208.7MB. Free memory was 161.1MB in the beginning and 148.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-06 16:56:57,888 INFO L158 Benchmark]: TraceAbstraction took 1050.87ms. Allocated memory was 208.7MB in the beginning and 250.6MB in the end (delta: 41.9MB). Free memory was 147.5MB in the beginning and 173.8MB in the end (delta: -26.2MB). Peak memory consumption was 17.3MB. Max. memory is 8.0GB. [2022-12-06 16:56:57,891 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 208.7MB. Free memory is still 184.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 363.15ms. Allocated memory is still 208.7MB. Free memory was 183.2MB in the beginning and 164.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 48.32ms. Allocated memory is still 208.7MB. Free memory was 164.3MB in the beginning and 162.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.28ms. Allocated memory is still 208.7MB. Free memory was 162.6MB in the beginning and 161.1MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 331.40ms. Allocated memory is still 208.7MB. Free memory was 161.1MB in the beginning and 148.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 1050.87ms. Allocated memory was 208.7MB in the beginning and 250.6MB in the end (delta: 41.9MB). Free memory was 147.5MB in the beginning and 173.8MB in the end (delta: -26.2MB). Peak memory consumption was 17.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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; VAL [glob1=0] [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [glob1=0, mutex1={3:0}] [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [glob1=0, mutex1={3:0}, mutex2={4:0}] [L696] 0 pthread_t id; VAL [glob1=0, id={5:0}, mutex1={3:0}, mutex2={4:0}] [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, id={5:0}, mutex1={3:0}, mutex2={4:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L687] 1 glob1 = 5 VAL [arg={0:0}, arg={0:0}, glob1=5, mutex1={3:0}, mutex2={4:0}] [L699] CALL 0 __VERIFIER_assert(glob1 == 0) [L19] COND TRUE 0 !(cond) VAL [\old(cond)=0, arg={0:0}, arg={0:0}, cond=0, glob1=5, mutex1={3:0}, mutex2={4:0}] [L19] 0 reach_error() VAL [\old(cond)=0, arg={0:0}, arg={0:0}, cond=0, glob1=5, 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: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 35 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36 IncrementalHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 21 mSDtfsCounter, 36 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=171occurred in iteration=1, InterpolantAutomatonStates: 10, 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, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 127 NumberOfCodeBlocks, 127 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 171 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 16:56:57,903 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...