/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_41-traces-ex-7_unknown_1_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 16:58:07,946 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 16:58:07,948 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 16:58:07,974 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 16:58:07,975 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 16:58:07,975 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 16:58:07,976 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 16:58:07,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 16:58:07,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 16:58:07,982 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 16:58:07,983 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 16:58:07,983 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 16:58:07,983 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 16:58:07,984 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 16:58:07,985 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 16:58:07,985 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 16:58:07,986 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 16:58:07,986 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 16:58:07,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 16:58:07,989 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 16:58:07,990 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 16:58:07,996 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 16:58:07,998 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 16:58:08,000 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 16:58:08,002 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 16:58:08,002 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 16:58:08,002 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 16:58:08,003 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 16:58:08,003 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 16:58:08,004 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-12-06 16:58:08,007 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 16:58:08,008 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 16:58:08,008 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 16:58:08,009 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 16:58:08,035 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 16:58:08,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 16:58:08,037 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 16:58:08,037 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 16:58:08,037 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 16:58:08,038 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 16:58:08,038 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 16:58:08,038 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 16:58:08,038 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 16:58:08,038 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 16:58:08,039 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 16:58:08,039 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 16:58:08,039 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 16:58:08,039 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 16:58:08,039 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 16:58:08,039 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 16:58:08,039 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 16:58:08,039 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 16:58:08,039 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 16:58:08,040 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 16:58:08,040 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 16:58:08,040 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 16:58:08,040 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 16:58:08,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:58:08,040 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 16:58:08,040 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 16:58:08,040 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 16:58:08,040 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 16:58:08,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 16:58:08,041 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 16:58:08,041 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 16:58:08,041 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 16:58:08,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 16:58:08,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 16:58:08,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 16:58:08,332 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 16:58:08,332 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 16:58:08,333 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2022-12-06 16:58:09,273 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 16:58:09,462 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 16:58:09,462 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2022-12-06 16:58:09,473 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1950aca11/d4acf784526947089d37a24bf53f6d1c/FLAG325b6584f [2022-12-06 16:58:09,489 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1950aca11/d4acf784526947089d37a24bf53f6d1c [2022-12-06 16:58:09,491 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 16:58:09,492 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 16:58:09,492 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 16:58:09,492 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 16:58:09,494 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 16:58:09,495 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:58:09" (1/1) ... [2022-12-06 16:58:09,495 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41781bbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:09, skipping insertion in model container [2022-12-06 16:58:09,495 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:58:09" (1/1) ... [2022-12-06 16:58:09,499 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 16:58:09,528 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 16:58:09,618 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_41-traces-ex-7_unknown_1_neg.i[1097,1110] [2022-12-06 16:58:09,750 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:58:09,760 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 16:58:09,769 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_41-traces-ex-7_unknown_1_neg.i[1097,1110] [2022-12-06 16:58:09,803 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:58:09,826 INFO L208 MainTranslator]: Completed translation [2022-12-06 16:58:09,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:09 WrapperNode [2022-12-06 16:58:09,826 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 16:58:09,827 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 16:58:09,827 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 16:58:09,827 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 16:58:09,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:09" (1/1) ... [2022-12-06 16:58:09,839 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:09" (1/1) ... [2022-12-06 16:58:09,851 INFO L138 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2022-12-06 16:58:09,852 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 16:58:09,852 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 16:58:09,852 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 16:58:09,852 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 16:58:09,858 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:09" (1/1) ... [2022-12-06 16:58:09,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:09" (1/1) ... [2022-12-06 16:58:09,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:09" (1/1) ... [2022-12-06 16:58:09,861 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:09" (1/1) ... [2022-12-06 16:58:09,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:09" (1/1) ... [2022-12-06 16:58:09,868 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:09" (1/1) ... [2022-12-06 16:58:09,869 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:09" (1/1) ... [2022-12-06 16:58:09,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:09" (1/1) ... [2022-12-06 16:58:09,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 16:58:09,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 16:58:09,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 16:58:09,872 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 16:58:09,873 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:09" (1/1) ... [2022-12-06 16:58:09,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:58:09,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:58:09,916 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 16:58:09,939 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 16:58:09,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 16:58:09,966 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-06 16:58:09,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 16:58:09,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 16:58:09,966 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-06 16:58:09,966 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-06 16:58:09,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 16:58:09,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 16:58:09,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 16:58:09,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 16:58:09,968 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 16:58:10,080 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 16:58:10,081 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 16:58:10,186 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 16:58:10,191 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 16:58:10,191 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 16:58:10,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:58:10 BoogieIcfgContainer [2022-12-06 16:58:10,193 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 16:58:10,194 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 16:58:10,194 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 16:58:10,196 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 16:58:10,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:58:09" (1/3) ... [2022-12-06 16:58:10,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b02ce12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:58:10, skipping insertion in model container [2022-12-06 16:58:10,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:09" (2/3) ... [2022-12-06 16:58:10,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b02ce12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:58:10, skipping insertion in model container [2022-12-06 16:58:10,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:58:10" (3/3) ... [2022-12-06 16:58:10,198 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_neg.i [2022-12-06 16:58:10,214 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 16:58:10,214 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 16:58:10,214 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 16:58:10,246 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-06 16:58:10,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 60 transitions, 125 flow [2022-12-06 16:58:10,330 INFO L130 PetriNetUnfolder]: 1/59 cut-off events. [2022-12-06 16:58:10,330 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:58:10,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 59 events. 1/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 26 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2022-12-06 16:58:10,334 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 60 transitions, 125 flow [2022-12-06 16:58:10,337 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 51 transitions, 105 flow [2022-12-06 16:58:10,349 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 16:58:10,355 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;@377bcc7a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 16:58:10,355 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-06 16:58:10,380 INFO L130 PetriNetUnfolder]: 0/50 cut-off events. [2022-12-06 16:58:10,380 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:58:10,381 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:58:10,381 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] [2022-12-06 16:58:10,382 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 16:58:10,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:58:10,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1808390897, now seen corresponding path program 1 times [2022-12-06 16:58:10,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:58:10,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973120798] [2022-12-06 16:58:10,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:58:10,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:58:10,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 16:58:10,528 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-06 16:58:10,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 16:58:10,590 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-06 16:58:10,592 INFO L373 BasicCegarLoop]: Counterexample is feasible [2022-12-06 16:58:10,593 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-06 16:58:10,595 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-06 16:58:10,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 16:58:10,596 INFO L458 BasicCegarLoop]: Path program histogram: [1] [2022-12-06 16:58:10,603 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 16:58:10,603 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 16:58:10,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:58:10 BasicIcfg [2022-12-06 16:58:10,649 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 16:58:10,651 INFO L158 Benchmark]: Toolchain (without parser) took 1158.44ms. Allocated memory is still 218.1MB. Free memory was 177.3MB in the beginning and 114.9MB in the end (delta: 62.4MB). Peak memory consumption was 61.9MB. Max. memory is 8.0GB. [2022-12-06 16:58:10,652 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 218.1MB. Free memory is still 195.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 16:58:10,652 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.32ms. Allocated memory is still 218.1MB. Free memory was 177.3MB in the beginning and 158.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-06 16:58:10,653 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.63ms. Allocated memory is still 218.1MB. Free memory was 158.5MB in the beginning and 156.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 16:58:10,654 INFO L158 Benchmark]: Boogie Preprocessor took 19.22ms. Allocated memory is still 218.1MB. Free memory was 156.4MB in the beginning and 155.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 16:58:10,657 INFO L158 Benchmark]: RCFGBuilder took 320.68ms. Allocated memory is still 218.1MB. Free memory was 154.8MB in the beginning and 142.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-06 16:58:10,658 INFO L158 Benchmark]: TraceAbstraction took 455.48ms. Allocated memory is still 218.1MB. Free memory was 141.2MB in the beginning and 114.9MB in the end (delta: 26.2MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2022-12-06 16:58:10,661 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 218.1MB. Free memory is still 195.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 334.32ms. Allocated memory is still 218.1MB. Free memory was 177.3MB in the beginning and 158.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.63ms. Allocated memory is still 218.1MB. Free memory was 158.5MB in the beginning and 156.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.22ms. Allocated memory is still 218.1MB. Free memory was 156.4MB in the beginning and 155.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 320.68ms. Allocated memory is still 218.1MB. Free memory was 154.8MB in the beginning and 142.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 455.48ms. Allocated memory is still 218.1MB. Free memory was 141.2MB in the beginning and 114.9MB in the end (delta: 26.2MB). Peak memory consumption was 26.2MB. 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 g = 0; VAL [g=0] [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [A={3:0}, g=0] [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [A={3:0}, D={4:0}, g=0] [L693] 0 pthread_t id; VAL [A={3:0}, D={4:0}, g=0, id={5:0}] [L694] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, arg={0:0}, D={4:0}, g=0, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L698] CALL 0 __VERIFIER_assert(!(g == 0)) [L19] COND TRUE 0 !(cond) VAL [\old(cond)=0, A={3:0}, arg={0:0}, cond=0, D={4:0}, g=0] [L19] 0 reach_error() VAL [\old(cond)=0, A={3:0}, arg={0:0}, cond=0, D={4:0}, g=0] - UnprovableResult [Line: 694]: 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, 72 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=105occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 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 16:58:10,691 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...