/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/stateful01-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-3902331-m [2022-09-20 22:19:28,313 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-20 22:19:28,315 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-20 22:19:28,354 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-20 22:19:28,354 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-20 22:19:28,357 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-20 22:19:28,359 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-20 22:19:28,364 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-20 22:19:28,365 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-20 22:19:28,369 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-20 22:19:28,370 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-20 22:19:28,371 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-20 22:19:28,371 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-20 22:19:28,373 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-20 22:19:28,374 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-20 22:19:28,377 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-20 22:19:28,378 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-20 22:19:28,378 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-20 22:19:28,380 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-20 22:19:28,385 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-20 22:19:28,386 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-20 22:19:28,387 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-20 22:19:28,389 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-20 22:19:28,390 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-20 22:19:28,396 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-20 22:19:28,399 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-20 22:19:28,400 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-20 22:19:28,401 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-20 22:19:28,402 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-20 22:19:28,402 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-20 22:19:28,403 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-20 22:19:28,403 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-20 22:19:28,403 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-20 22:19:28,403 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-20 22:19:28,404 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-20 22:19:28,405 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-20 22:19:28,406 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 [2022-09-20 22:19:28,437 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-20 22:19:28,437 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-20 22:19:28,438 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-20 22:19:28,438 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-20 22:19:28,438 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-20 22:19:28,438 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-20 22:19:28,438 INFO L138 SettingsManager]: * Use SBE=true [2022-09-20 22:19:28,439 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-20 22:19:28,439 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-20 22:19:28,439 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-20 22:19:28,441 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-20 22:19:28,442 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-20 22:19:28,442 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-20 22:19:28,442 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-20 22:19:28,442 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-20 22:19:28,442 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-20 22:19:28,442 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-20 22:19:28,442 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-20 22:19:28,442 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-20 22:19:28,443 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-20 22:19:28,443 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-20 22:19:28,443 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-20 22:19:28,443 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-20 22:19:28,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 22:19:28,443 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-20 22:19:28,443 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-20 22:19:28,444 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-20 22:19:28,445 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-20 22:19:28,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-20 22:19:28,445 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-20 22:19:28,445 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-20 22:19:28,445 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-20 22:19:28,674 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-20 22:19:28,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-20 22:19:28,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-20 22:19:28,692 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-20 22:19:28,693 INFO L275 PluginConnector]: CDTParser initialized [2022-09-20 22:19:28,694 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stateful01-1.i [2022-09-20 22:19:28,747 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd87ac4b0/85777025a0fc47bca847f8f1f1b243eb/FLAG82f05ff66 [2022-09-20 22:19:29,173 INFO L306 CDTParser]: Found 1 translation units. [2022-09-20 22:19:29,173 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-1.i [2022-09-20 22:19:29,182 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd87ac4b0/85777025a0fc47bca847f8f1f1b243eb/FLAG82f05ff66 [2022-09-20 22:19:29,191 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd87ac4b0/85777025a0fc47bca847f8f1f1b243eb [2022-09-20 22:19:29,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-20 22:19:29,195 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-20 22:19:29,196 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-20 22:19:29,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-20 22:19:29,200 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-20 22:19:29,201 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 10:19:29" (1/1) ... [2022-09-20 22:19:29,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6619e7c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:19:29, skipping insertion in model container [2022-09-20 22:19:29,202 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 10:19:29" (1/1) ... [2022-09-20 22:19:29,208 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-20 22:19:29,244 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-20 22:19:29,540 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-1.i[30826,30839] [2022-09-20 22:19:29,544 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 22:19:29,557 INFO L203 MainTranslator]: Completed pre-run [2022-09-20 22:19:29,594 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-1.i[30826,30839] [2022-09-20 22:19:29,595 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 22:19:29,623 INFO L208 MainTranslator]: Completed translation [2022-09-20 22:19:29,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:19:29 WrapperNode [2022-09-20 22:19:29,623 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-20 22:19:29,624 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-20 22:19:29,624 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-20 22:19:29,624 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-20 22:19:29,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:19:29" (1/1) ... [2022-09-20 22:19:29,654 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:19:29" (1/1) ... [2022-09-20 22:19:29,674 INFO L138 Inliner]: procedures = 168, calls = 34, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 63 [2022-09-20 22:19:29,674 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-20 22:19:29,675 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-20 22:19:29,675 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-20 22:19:29,675 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-20 22:19:29,681 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:19:29" (1/1) ... [2022-09-20 22:19:29,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:19:29" (1/1) ... [2022-09-20 22:19:29,686 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:19:29" (1/1) ... [2022-09-20 22:19:29,686 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:19:29" (1/1) ... [2022-09-20 22:19:29,696 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:19:29" (1/1) ... [2022-09-20 22:19:29,698 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:19:29" (1/1) ... [2022-09-20 22:19:29,699 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:19:29" (1/1) ... [2022-09-20 22:19:29,704 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-20 22:19:29,705 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-20 22:19:29,705 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-20 22:19:29,705 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-20 22:19:29,706 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:19:29" (1/1) ... [2022-09-20 22:19:29,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 22:19:29,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-20 22:19:29,747 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) [2022-09-20 22:19:29,754 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 [2022-09-20 22:19:29,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-20 22:19:29,784 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-20 22:19:29,784 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-20 22:19:29,784 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-20 22:19:29,784 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-20 22:19:29,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-20 22:19:29,785 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-09-20 22:19:29,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-20 22:19:29,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-20 22:19:29,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-20 22:19:29,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-20 22:19:29,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-20 22:19:29,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-20 22:19:29,786 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-20 22:19:29,873 INFO L234 CfgBuilder]: Building ICFG [2022-09-20 22:19:29,874 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-20 22:19:30,023 INFO L275 CfgBuilder]: Performing block encoding [2022-09-20 22:19:30,029 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-20 22:19:30,030 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-20 22:19:30,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 10:19:30 BoogieIcfgContainer [2022-09-20 22:19:30,031 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-20 22:19:30,033 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-20 22:19:30,033 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-20 22:19:30,036 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-20 22:19:30,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 10:19:29" (1/3) ... [2022-09-20 22:19:30,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@263fcb59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 10:19:30, skipping insertion in model container [2022-09-20 22:19:30,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:19:29" (2/3) ... [2022-09-20 22:19:30,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@263fcb59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 10:19:30, skipping insertion in model container [2022-09-20 22:19:30,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 10:19:30" (3/3) ... [2022-09-20 22:19:30,038 INFO L112 eAbstractionObserver]: Analyzing ICFG stateful01-1.i [2022-09-20 22:19:30,053 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-20 22:19:30,053 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-09-20 22:19:30,053 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-20 22:19:30,132 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-09-20 22:19:30,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 93 transitions, 202 flow [2022-09-20 22:19:30,216 INFO L130 PetriNetUnfolder]: 1/91 cut-off events. [2022-09-20 22:19:30,216 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-09-20 22:19:30,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 91 events. 1/91 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2022-09-20 22:19:30,228 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 93 transitions, 202 flow [2022-09-20 22:19:30,235 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 80 transitions, 172 flow [2022-09-20 22:19:30,243 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-20 22:19:30,249 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;@2c21d6db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-20 22:19:30,249 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-09-20 22:19:30,273 INFO L130 PetriNetUnfolder]: 0/79 cut-off events. [2022-09-20 22:19:30,273 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-09-20 22:19:30,274 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:19:30,274 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-09-20 22:19:30,275 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-09-20 22:19:30,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:19:30,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1215155975, now seen corresponding path program 1 times [2022-09-20 22:19:30,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:19:30,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047603947] [2022-09-20 22:19:30,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:19:30,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:19:30,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-20 22:19:30,544 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-20 22:19:30,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-20 22:19:30,650 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-20 22:19:30,652 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-09-20 22:19:30,653 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-09-20 22:19:30,654 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-09-20 22:19:30,655 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-09-20 22:19:30,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-20 22:19:30,656 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-09-20 22:19:30,661 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-20 22:19:30,661 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-20 22:19:30,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 10:19:30 BasicIcfg [2022-09-20 22:19:30,725 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-20 22:19:30,726 INFO L158 Benchmark]: Toolchain (without parser) took 1530.41ms. Allocated memory was 174.1MB in the beginning and 253.8MB in the end (delta: 79.7MB). Free memory was 141.8MB in the beginning and 153.4MB in the end (delta: -11.6MB). Peak memory consumption was 66.4MB. Max. memory is 8.0GB. [2022-09-20 22:19:30,727 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 174.1MB. Free memory is still 129.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-20 22:19:30,727 INFO L158 Benchmark]: CACSL2BoogieTranslator took 427.32ms. Allocated memory was 174.1MB in the beginning and 253.8MB in the end (delta: 79.7MB). Free memory was 141.4MB in the beginning and 213.7MB in the end (delta: -72.3MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-09-20 22:19:30,728 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.04ms. Allocated memory is still 253.8MB. Free memory was 213.7MB in the beginning and 211.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-20 22:19:30,728 INFO L158 Benchmark]: Boogie Preprocessor took 29.58ms. Allocated memory is still 253.8MB. Free memory was 211.6MB in the beginning and 210.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-20 22:19:30,729 INFO L158 Benchmark]: RCFGBuilder took 326.48ms. Allocated memory is still 253.8MB. Free memory was 210.6MB in the beginning and 196.9MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-09-20 22:19:30,729 INFO L158 Benchmark]: TraceAbstraction took 691.78ms. Allocated memory is still 253.8MB. Free memory was 195.9MB in the beginning and 153.4MB in the end (delta: 42.5MB). Peak memory consumption was 41.9MB. Max. memory is 8.0GB. [2022-09-20 22:19:30,732 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 174.1MB. Free memory is still 129.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 427.32ms. Allocated memory was 174.1MB in the beginning and 253.8MB in the end (delta: 79.7MB). Free memory was 141.4MB in the beginning and 213.7MB in the end (delta: -72.3MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 50.04ms. Allocated memory is still 253.8MB. Free memory was 213.7MB in the beginning and 211.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.58ms. Allocated memory is still 253.8MB. Free memory was 211.6MB in the beginning and 210.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 326.48ms. Allocated memory is still 253.8MB. Free memory was 210.6MB in the beginning and 196.9MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 691.78ms. Allocated memory is still 253.8MB. Free memory was 195.9MB in the beginning and 153.4MB in the end (delta: 42.5MB). Peak memory consumption was 41.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 727]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L692] 0 pthread_mutex_t ma, mb; VAL [ma={3:0}, mb={4:0}] [L693] 0 int data1, data2; VAL [data1=0, data2=0, ma={3:0}, mb={4:0}] [L716] 0 pthread_t t1, t2; VAL [data1=0, data2=0, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L719] 0 data1 = 10 VAL [data1=10, data2=0, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L720] 0 data2 = 10 VAL [data1=10, data2=10, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L721] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, data1=10, data2=10, ma={3:0}, mb={4:0}, pthread_create(&t1, 0, thread1, 0)=-1, t1={6:0}, t2={5:0}] [L722] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [arg={0:0}, arg={0:0}, data1=10, data2=10, ma={3:0}, mb={4:0}, pthread_create(&t2, 0, thread2, 0)=0, t1={6:0}, t2={5:0}] [L707] 2 data1+=5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, data1=15, data2=10, ma={3:0}, mb={4:0}] [L710] 2 data2-=6 VAL [arg={0:0}, arg={0:0}, arg={0:0}, data1=15, data2=4, ma={3:0}, mb={4:0}] [L712] 2 return 0; VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=15, data2=4, ma={3:0}, mb={4:0}] [L697] 1 data1++ VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=4, ma={3:0}, mb={4:0}] [L700] 1 data2++ VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}] [L702] 1 return 0; VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}] [L723] 0 \read(t1) VAL [\read(t1)=-1, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L723] FCALL, JOIN 1 pthread_join(t1, 0) VAL [\read(t1)=-1, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L724] 0 \read(t2) VAL [\read(t2)=0, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L724] FCALL, JOIN 2 pthread_join(t2, 0) VAL [\read(t2)=0, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L725] COND TRUE 0 data1==16 && data2==5 VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L727] 0 reach_error() VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] - UnprovableResult [Line: 721]: 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: 722]: 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, 123 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.5s, 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=172occurred 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, 80 NumberOfCodeBlocks, 80 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! [2022-09-20 22:19:30,774 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...