/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-SemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 22:03:51,941 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 22:03:51,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 22:03:51,990 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 22:03:51,991 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 22:03:51,994 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 22:03:51,996 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 22:03:51,999 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 22:03:52,001 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 22:03:52,005 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 22:03:52,006 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 22:03:52,007 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 22:03:52,008 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 22:03:52,009 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 22:03:52,010 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 22:03:52,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 22:03:52,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 22:03:52,014 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 22:03:52,016 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 22:03:52,019 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 22:03:52,020 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 22:03:52,022 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 22:03:52,022 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 22:03:52,023 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 22:03:52,028 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 22:03:52,028 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 22:03:52,029 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 22:03:52,030 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 22:03:52,030 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 22:03:52,030 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-12-12 22:03:52,035 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 22:03:52,036 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 22:03:52,036 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 22:03:52,040 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-SemanticLbe.epf [2022-12-12 22:03:52,064 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 22:03:52,064 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 22:03:52,065 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 22:03:52,065 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 22:03:52,066 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 22:03:52,066 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 22:03:52,066 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 22:03:52,067 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 22:03:52,067 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 22:03:52,067 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 22:03:52,067 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 22:03:52,068 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 22:03:52,068 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 22:03:52,068 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 22:03:52,068 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 22:03:52,068 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 22:03:52,068 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 22:03:52,068 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 22:03:52,068 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 22:03:52,068 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 22:03:52,068 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 22:03:52,069 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 22:03:52,069 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 22:03:52,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 22:03:52,069 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 22:03:52,069 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 22:03:52,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 22:03:52,069 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 22:03:52,069 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 22:03:52,069 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 22:03:52,070 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-12 22:03:52,326 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 22:03:52,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 22:03:52,349 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 22:03:52,350 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 22:03:52,350 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 22:03:52,351 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i [2022-12-12 22:03:53,544 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 22:03:53,825 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 22:03:53,826 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i [2022-12-12 22:03:53,842 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f43a6829c/04c2b010175c46bc8572dcae37530015/FLAG1218e69b3 [2022-12-12 22:03:53,854 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f43a6829c/04c2b010175c46bc8572dcae37530015 [2022-12-12 22:03:53,857 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 22:03:53,858 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 22:03:53,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 22:03:53,859 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 22:03:53,861 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 22:03:53,862 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 10:03:53" (1/1) ... [2022-12-12 22:03:53,863 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61f09c77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:03:53, skipping insertion in model container [2022-12-12 22:03:53,863 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 10:03:53" (1/1) ... [2022-12-12 22:03:53,867 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 22:03:53,908 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 22:03:54,042 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_67-pthread_cond_wait_unknown_1_neg.i[1103,1116] [2022-12-12 22:03:54,282 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-12-12 22:03:54,286 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 22:03:54,294 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 22:03:54,301 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_67-pthread_cond_wait_unknown_1_neg.i[1103,1116] [2022-12-12 22:03:54,332 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-12-12 22:03:54,334 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 22:03:54,398 INFO L208 MainTranslator]: Completed translation [2022-12-12 22:03:54,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:03:54 WrapperNode [2022-12-12 22:03:54,398 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 22:03:54,400 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 22:03:54,400 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 22:03:54,400 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 22:03:54,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:03:54" (1/1) ... [2022-12-12 22:03:54,432 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:03:54" (1/1) ... [2022-12-12 22:03:54,460 INFO L138 Inliner]: procedures = 354, calls = 38, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2022-12-12 22:03:54,460 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 22:03:54,461 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 22:03:54,461 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 22:03:54,461 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 22:03:54,466 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:03:54" (1/1) ... [2022-12-12 22:03:54,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:03:54" (1/1) ... [2022-12-12 22:03:54,481 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:03:54" (1/1) ... [2022-12-12 22:03:54,481 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:03:54" (1/1) ... [2022-12-12 22:03:54,487 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:03:54" (1/1) ... [2022-12-12 22:03:54,503 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:03:54" (1/1) ... [2022-12-12 22:03:54,506 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:03:54" (1/1) ... [2022-12-12 22:03:54,507 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:03:54" (1/1) ... [2022-12-12 22:03:54,510 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 22:03:54,511 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 22:03:54,511 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 22:03:54,511 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 22:03:54,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:03:54" (1/1) ... [2022-12-12 22:03:54,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 22:03:54,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 22:03:54,546 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) [2022-12-12 22:03:54,557 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 [2022-12-12 22:03:54,577 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-12-12 22:03:54,577 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2022-12-12 22:03:54,577 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2022-12-12 22:03:54,583 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2022-12-12 22:03:54,583 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2022-12-12 22:03:54,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 22:03:54,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 22:03:54,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 22:03:54,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 22:03:54,584 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-12 22:03:54,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 22:03:54,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 22:03:54,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 22:03:54,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 22:03:54,585 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 22:03:54,815 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 22:03:54,816 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 22:03:54,945 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 22:03:54,955 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 22:03:54,956 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 22:03:54,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 10:03:54 BoogieIcfgContainer [2022-12-12 22:03:54,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 22:03:54,959 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 22:03:54,959 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 22:03:54,961 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 22:03:54,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 10:03:53" (1/3) ... [2022-12-12 22:03:54,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6da5aac3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 10:03:54, skipping insertion in model container [2022-12-12 22:03:54,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 10:03:54" (2/3) ... [2022-12-12 22:03:54,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6da5aac3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 10:03:54, skipping insertion in model container [2022-12-12 22:03:54,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 10:03:54" (3/3) ... [2022-12-12 22:03:54,963 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_unknown_1_neg.i [2022-12-12 22:03:54,976 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 22:03:54,976 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 22:03:54,976 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 22:03:55,026 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-12 22:03:55,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 88 transitions, 192 flow [2022-12-12 22:03:55,102 INFO L130 PetriNetUnfolder]: 1/86 cut-off events. [2022-12-12 22:03:55,102 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-12 22:03:55,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 86 events. 1/86 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2022-12-12 22:03:55,106 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 88 transitions, 192 flow [2022-12-12 22:03:55,110 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 70 transitions, 149 flow [2022-12-12 22:03:55,111 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 22:03:55,127 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 70 transitions, 149 flow [2022-12-12 22:03:55,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 70 transitions, 149 flow [2022-12-12 22:03:55,157 INFO L130 PetriNetUnfolder]: 0/70 cut-off events. [2022-12-12 22:03:55,157 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-12 22:03:55,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 70 events. 0/70 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 40 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-12-12 22:03:55,159 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 70 transitions, 149 flow [2022-12-12 22:03:55,159 INFO L226 LiptonReduction]: Number of co-enabled transitions 552 [2022-12-12 22:03:58,526 INFO L241 LiptonReduction]: Total number of compositions: 59 [2022-12-12 22:03:58,536 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 22:03:58,545 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;@25381a93, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 22:03:58,545 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-12 22:03:58,564 INFO L130 PetriNetUnfolder]: 0/20 cut-off events. [2022-12-12 22:03:58,564 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-12 22:03:58,564 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 22:03:58,565 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-12 22:03:58,565 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 22:03:58,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 22:03:58,569 INFO L85 PathProgramCache]: Analyzing trace with hash 341228257, now seen corresponding path program 1 times [2022-12-12 22:03:58,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 22:03:58,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022599141] [2022-12-12 22:03:58,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 22:03:58,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 22:03:58,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-12 22:03:58,736 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-12 22:03:58,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-12 22:03:58,771 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-12 22:03:58,772 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-12 22:03:58,773 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-12 22:03:58,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-12 22:03:58,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-12 22:03:58,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-12-12 22:03:58,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 22:03:58,775 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-12 22:03:58,779 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 22:03:58,779 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 22:03:58,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 10:03:58 BasicIcfg [2022-12-12 22:03:58,795 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 22:03:58,796 INFO L158 Benchmark]: Toolchain (without parser) took 4937.84ms. Allocated memory was 218.1MB in the beginning and 328.2MB in the end (delta: 110.1MB). Free memory was 191.8MB in the beginning and 141.3MB in the end (delta: 50.5MB). Peak memory consumption was 161.7MB. Max. memory is 8.0GB. [2022-12-12 22:03:58,799 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 218.1MB. Free memory is still 194.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 22:03:58,799 INFO L158 Benchmark]: CACSL2BoogieTranslator took 539.51ms. Allocated memory is still 218.1MB. Free memory was 191.8MB in the beginning and 153.5MB in the end (delta: 38.3MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. [2022-12-12 22:03:58,800 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.54ms. Allocated memory is still 218.1MB. Free memory was 153.5MB in the beginning and 150.9MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-12 22:03:58,800 INFO L158 Benchmark]: Boogie Preprocessor took 49.19ms. Allocated memory is still 218.1MB. Free memory was 150.9MB in the beginning and 148.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 22:03:58,801 INFO L158 Benchmark]: RCFGBuilder took 446.40ms. Allocated memory is still 218.1MB. Free memory was 148.3MB in the beginning and 128.4MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-12-12 22:03:58,802 INFO L158 Benchmark]: TraceAbstraction took 3835.68ms. Allocated memory was 218.1MB in the beginning and 328.2MB in the end (delta: 110.1MB). Free memory was 126.8MB in the beginning and 141.3MB in the end (delta: -14.5MB). Peak memory consumption was 96.7MB. Max. memory is 8.0GB. [2022-12-12 22:03:58,806 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 218.1MB. Free memory is still 194.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 539.51ms. Allocated memory is still 218.1MB. Free memory was 191.8MB in the beginning and 153.5MB in the end (delta: 38.3MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 60.54ms. Allocated memory is still 218.1MB. Free memory was 153.5MB in the beginning and 150.9MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 49.19ms. Allocated memory is still 218.1MB. Free memory was 150.9MB in the beginning and 148.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 446.40ms. Allocated memory is still 218.1MB. Free memory was 148.3MB in the beginning and 128.4MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 3835.68ms. Allocated memory was 218.1MB in the beginning and 328.2MB in the end (delta: 110.1MB). Free memory was 126.8MB in the beginning and 141.3MB in the end (delta: -14.5MB). Peak memory consumption was 96.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.4s, 77 PlacesBefore, 31 PlacesAfterwards, 70 TransitionsBefore, 24 TransitionsAfterwards, 552 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 34 TrivialYvCompositions, 25 ConcurrentYvCompositions, 0 ChoiceCompositions, 59 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 568, independent: 535, independent conditional: 535, independent unconditional: 0, dependent: 33, dependent conditional: 33, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 568, independent: 535, independent conditional: 0, independent unconditional: 535, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 568, independent: 535, independent conditional: 0, independent unconditional: 535, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 568, independent: 535, independent conditional: 0, independent unconditional: 535, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 415, independent: 402, independent conditional: 0, independent unconditional: 402, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 415, independent: 386, independent conditional: 0, independent unconditional: 386, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 29, independent: 16, independent conditional: 0, independent unconditional: 16, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 57, independent: 35, independent conditional: 0, independent unconditional: 35, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 568, independent: 133, independent conditional: 0, independent unconditional: 133, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 415, unknown conditional: 0, unknown unconditional: 415] , Statistics on independence cache: Total cache size (in pairs): 772, Positive cache size: 759, Positive conditional cache size: 0, Positive unconditional cache size: 759, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1351] 0 int g; [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L1353] 0 pthread_cond_t cond = { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, {0, 0} } }; [L1373] 0 pthread_t t1; [L1374] 0 pthread_t t2; [L1375] FCALL, FORK 0 pthread_create(&t1,((void *)0),f1,((void *)0)) VAL [\old(argc)=1150, argc=1150, argv={1151:1152}, argv={1151:1152}, cond={4:0}, g=0, mut={3:0}, pthread_create(&t1,((void *)0),f1,((void *)0))=-2, ptr={0:0}, t1={6:0}, t2={5:0}] [L1377] FCALL, FORK 0 pthread_create(&t2,((void *)0),f2,((void *)0)) VAL [\old(argc)=1150, argc=1150, argv={1151:1152}, argv={1151:1152}, cond={4:0}, g=0, mut={3:0}, pthread_create(&t2,((void *)0),f2,((void *)0))=-1, ptr={0:0}, t1={6:0}, t2={5:0}] [L1365] CALL 2 __VERIFIER_assert(!(g == 0)) [L19] COND TRUE 2 !(cond) [L19] 2 reach_error() VAL [\old(cond)=0, cond=0, cond={4:0}, g=0, mut={3:0}, ptr={0:0}] - UnprovableResult [Line: 1375]: 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. - UnprovableResult [Line: 1377]: 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 5 procedures, 118 locations, 4 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: 3.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred 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, 6 NumberOfCodeBlocks, 6 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! [2022-12-12 22:03:58,838 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...