/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_2_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 16:57:05,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 16:57:05,339 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 16:57:05,370 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 16:57:05,370 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 16:57:05,373 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 16:57:05,376 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 16:57:05,379 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 16:57:05,385 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 16:57:05,390 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 16:57:05,391 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 16:57:05,391 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 16:57:05,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 16:57:05,392 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 16:57:05,393 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 16:57:05,393 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 16:57:05,394 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 16:57:05,394 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 16:57:05,395 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 16:57:05,396 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 16:57:05,397 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 16:57:05,401 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 16:57:05,402 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 16:57:05,402 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 16:57:05,405 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 16:57:05,405 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 16:57:05,405 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 16:57:05,406 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 16:57:05,406 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 16:57:05,406 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-12-06 16:57:05,409 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 16:57:05,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 16:57:05,410 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 16:57:05,411 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 16:57:05,435 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 16:57:05,435 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 16:57:05,436 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 16:57:05,436 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 16:57:05,437 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 16:57:05,437 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 16:57:05,437 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 16:57:05,437 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 16:57:05,438 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 16:57:05,438 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 16:57:05,438 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 16:57:05,438 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 16:57:05,438 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 16:57:05,439 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 16:57:05,439 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 16:57:05,439 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 16:57:05,439 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 16:57:05,439 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 16:57:05,439 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 16:57:05,439 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 16:57:05,439 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 16:57:05,439 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 16:57:05,439 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 16:57:05,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:57:05,440 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 16:57:05,440 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 16:57:05,440 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 16:57:05,440 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 16:57:05,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 16:57:05,440 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 16:57:05,440 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 16:57:05,440 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 16:57:05,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 16:57:05,695 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 16:57:05,696 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 16:57:05,697 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 16:57:05,697 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 16:57:05,698 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i [2022-12-06 16:57:06,672 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 16:57:06,879 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 16:57:06,880 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i [2022-12-06 16:57:06,904 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7addcba4/1da77e22023043259203ef5e9ae4df0a/FLAGc3b046195 [2022-12-06 16:57:06,914 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7addcba4/1da77e22023043259203ef5e9ae4df0a [2022-12-06 16:57:06,916 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 16:57:06,917 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 16:57:06,918 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 16:57:06,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 16:57:06,919 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 16:57:06,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:57:06" (1/1) ... [2022-12-06 16:57:06,920 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dbdb974 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:06, skipping insertion in model container [2022-12-06 16:57:06,921 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:57:06" (1/1) ... [2022-12-06 16:57:06,924 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 16:57:06,961 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 16:57:07,082 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_2_pos.i[1103,1116] [2022-12-06 16:57:07,203 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:57:07,213 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 16:57:07,224 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_2_pos.i[1103,1116] [2022-12-06 16:57:07,262 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:57:07,292 INFO L208 MainTranslator]: Completed translation [2022-12-06 16:57:07,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:07 WrapperNode [2022-12-06 16:57:07,293 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 16:57:07,294 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 16:57:07,294 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 16:57:07,294 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 16:57:07,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:07" (1/1) ... [2022-12-06 16:57:07,318 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:07" (1/1) ... [2022-12-06 16:57:07,334 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2022-12-06 16:57:07,334 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 16:57:07,335 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 16:57:07,335 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 16:57:07,335 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 16:57:07,341 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:07" (1/1) ... [2022-12-06 16:57:07,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:07" (1/1) ... [2022-12-06 16:57:07,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:07" (1/1) ... [2022-12-06 16:57:07,345 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:07" (1/1) ... [2022-12-06 16:57:07,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:07" (1/1) ... [2022-12-06 16:57:07,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:07" (1/1) ... [2022-12-06 16:57:07,362 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:07" (1/1) ... [2022-12-06 16:57:07,362 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:07" (1/1) ... [2022-12-06 16:57:07,364 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 16:57:07,364 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 16:57:07,364 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 16:57:07,364 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 16:57:07,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:07" (1/1) ... [2022-12-06 16:57:07,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:57:07,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:57:07,428 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 16:57:07,448 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 16:57:07,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 16:57:07,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 16:57:07,463 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-06 16:57:07,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 16:57:07,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 16:57:07,463 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-06 16:57:07,464 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-06 16:57:07,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 16:57:07,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 16:57:07,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 16:57:07,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 16:57:07,466 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 16:57:07,571 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 16:57:07,573 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 16:57:07,749 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 16:57:07,753 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 16:57:07,753 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 16:57:07,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:57:07 BoogieIcfgContainer [2022-12-06 16:57:07,755 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 16:57:07,756 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 16:57:07,756 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 16:57:07,758 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 16:57:07,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:57:06" (1/3) ... [2022-12-06 16:57:07,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38eebe42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:57:07, skipping insertion in model container [2022-12-06 16:57:07,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:57:07" (2/3) ... [2022-12-06 16:57:07,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38eebe42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:57:07, skipping insertion in model container [2022-12-06 16:57:07,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:57:07" (3/3) ... [2022-12-06 16:57:07,760 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_2_pos.i [2022-12-06 16:57:07,788 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 16:57:07,789 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 16:57:07,789 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 16:57:07,844 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-06 16:57:07,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 65 transitions, 138 flow [2022-12-06 16:57:07,936 INFO L130 PetriNetUnfolder]: 1/64 cut-off events. [2022-12-06 16:57:07,936 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 16:57:07,939 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 16:57:07,939 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 65 transitions, 138 flow [2022-12-06 16:57:07,943 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 52 transitions, 107 flow [2022-12-06 16:57:07,951 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 16:57:07,955 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;@15da9a68, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 16:57:07,955 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-06 16:57:07,976 INFO L130 PetriNetUnfolder]: 0/45 cut-off events. [2022-12-06 16:57:07,976 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:57:07,976 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:57:07,977 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 16:57:07,977 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 16:57:07,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:57:07,980 INFO L85 PathProgramCache]: Analyzing trace with hash 105341448, now seen corresponding path program 1 times [2022-12-06 16:57:07,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:57:07,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947250246] [2022-12-06 16:57:07,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:57:07,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:57:08,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 16:57:08,095 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-06 16:57:08,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 16:57:08,139 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-06 16:57:08,140 INFO L373 BasicCegarLoop]: Counterexample is feasible [2022-12-06 16:57:08,141 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-06 16:57:08,142 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-06 16:57:08,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 16:57:08,142 INFO L458 BasicCegarLoop]: Path program histogram: [1] [2022-12-06 16:57:08,150 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 16:57:08,150 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 16:57:08,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:57:08 BasicIcfg [2022-12-06 16:57:08,174 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 16:57:08,175 INFO L158 Benchmark]: Toolchain (without parser) took 1257.16ms. Allocated memory is still 181.4MB. Free memory was 156.3MB in the beginning and 93.7MB in the end (delta: 62.6MB). Peak memory consumption was 62.9MB. Max. memory is 8.0GB. [2022-12-06 16:57:08,176 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 181.4MB. Free memory was 157.8MB in the beginning and 157.7MB in the end (delta: 152.1kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 16:57:08,176 INFO L158 Benchmark]: CACSL2BoogieTranslator took 375.30ms. Allocated memory is still 181.4MB. Free memory was 156.3MB in the beginning and 137.3MB in the end (delta: 19.1MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-06 16:57:08,177 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.80ms. Allocated memory is still 181.4MB. Free memory was 137.3MB in the beginning and 135.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 16:57:08,181 INFO L158 Benchmark]: Boogie Preprocessor took 28.40ms. Allocated memory is still 181.4MB. Free memory was 135.2MB in the beginning and 134.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 16:57:08,181 INFO L158 Benchmark]: RCFGBuilder took 390.40ms. Allocated memory is still 181.4MB. Free memory was 134.1MB in the beginning and 121.0MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-06 16:57:08,183 INFO L158 Benchmark]: TraceAbstraction took 417.66ms. Allocated memory is still 181.4MB. Free memory was 120.5MB in the beginning and 93.7MB in the end (delta: 26.7MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2022-12-06 16:57:08,186 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 181.4MB. Free memory was 157.8MB in the beginning and 157.7MB in the end (delta: 152.1kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 375.30ms. Allocated memory is still 181.4MB. Free memory was 156.3MB in the beginning and 137.3MB in the end (delta: 19.1MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 40.80ms. Allocated memory is still 181.4MB. Free memory was 137.3MB in the beginning and 135.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.40ms. Allocated memory is still 181.4MB. Free memory was 135.2MB in the beginning and 134.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 390.40ms. Allocated memory is still 181.4MB. Free memory was 134.1MB in the beginning and 121.0MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 417.66ms. Allocated memory is still 181.4MB. Free memory was 120.5MB in the beginning and 93.7MB in the end (delta: 26.7MB). Peak memory consumption was 27.3MB. 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={6:0}, 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={6:0}, mutex1={3:0}, mutex2={4:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L699] CALL 0 __VERIFIER_assert(glob1 == 5) [L19] COND TRUE 0 !(cond) VAL [\old(cond)=0, arg={0:0}, cond=0, glob1=0, mutex1={3:0}, mutex2={4:0}] [L19] 0 reach_error() VAL [\old(cond)=0, arg={0:0}, cond=0, glob1=0, mutex1={3:0}, mutex2={4:0}] - UnprovableResult [Line: 697]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 81 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred 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, 38 NumberOfCodeBlocks, 38 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 16:57:08,201 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...