/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/gemcutter/NewStatesSleepPersistentFixedOrder.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_THREAD_INSTANCE --traceabstraction.maximal.amount.of.steps.the.threads.are.allowed.to.take.successively 1 --traceabstraction.enable.heuristic.with.loops.as.step.type false --traceabstraction.considered.threads.and.their.maximal.amount.of.steps '"3,2 1,1 2,2"' --traceabstraction.defines.what.statements.are.considered.a.step.in.por GLOBAL_READ_WRITE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-lit/qw2004-2b.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-218013a [2023-05-04 08:10:19,465 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-05-04 08:10:19,467 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-05-04 08:10:19,492 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-05-04 08:10:19,502 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-05-04 08:10:19,503 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-05-04 08:10:19,504 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-05-04 08:10:19,505 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-05-04 08:10:19,505 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-05-04 08:10:19,506 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-05-04 08:10:19,507 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-05-04 08:10:19,509 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-05-04 08:10:19,510 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-05-04 08:10:19,516 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-05-04 08:10:19,519 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-05-04 08:10:19,520 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-05-04 08:10:19,525 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-05-04 08:10:19,525 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-05-04 08:10:19,526 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-05-04 08:10:19,526 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-05-04 08:10:19,527 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-05-04 08:10:19,528 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2023-05-04 08:10:19,532 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-05-04 08:10:19,539 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-05-04 08:10:19,541 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-05-04 08:10:19,542 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-04 08:10:19,573 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-04 08:10:19,573 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-04 08:10:19,573 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-04 08:10:19,573 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-04 08:10:19,574 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-04 08:10:19,574 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-04 08:10:19,574 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-04 08:10:19,575 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-04 08:10:19,575 INFO L138 SettingsManager]: * Use SBE=true [2023-05-04 08:10:19,575 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-04 08:10:19,575 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-04 08:10:19,575 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-04 08:10:19,575 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-04 08:10:19,575 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-04 08:10:19,575 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-04 08:10:19,576 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-04 08:10:19,576 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-04 08:10:19,576 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-04 08:10:19,576 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-04 08:10:19,576 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-04 08:10:19,576 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-04 08:10:19,576 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-04 08:10:19,576 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-04 08:10:19,576 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-04 08:10:19,577 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-04 08:10:19,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 08:10:19,577 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-04 08:10:19,577 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-04 08:10:19,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-04 08:10:19,577 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-04 08:10:19,577 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-04 08:10:19,577 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-04 08:10:19,578 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-04 08:10:19,578 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-04 08:10:19,578 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-04 08:10:19,578 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-04 08:10:19,578 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Considered threads and their maximal amount of steps -> 3,2 1,1 2,2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Defines what statements are considered a step in POR -> GLOBAL_READ_WRITE [2023-05-04 08:10:19,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-04 08:10:19,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-04 08:10:19,868 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-04 08:10:19,870 INFO L271 PluginConnector]: Initializing CDTParser... [2023-05-04 08:10:19,870 INFO L275 PluginConnector]: CDTParser initialized [2023-05-04 08:10:19,872 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/qw2004-2b.i [2023-05-04 08:10:19,942 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05a1172ed/7055609399434e7ead57a481d10ebdd8/FLAG0240fc912 [2023-05-04 08:10:20,487 INFO L306 CDTParser]: Found 1 translation units. [2023-05-04 08:10:20,488 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/qw2004-2b.i [2023-05-04 08:10:20,504 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05a1172ed/7055609399434e7ead57a481d10ebdd8/FLAG0240fc912 [2023-05-04 08:10:20,898 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05a1172ed/7055609399434e7ead57a481d10ebdd8 [2023-05-04 08:10:20,902 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-04 08:10:20,904 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-05-04 08:10:20,907 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-05-04 08:10:20,907 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-05-04 08:10:20,910 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-05-04 08:10:20,910 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 08:10:20" (1/1) ... [2023-05-04 08:10:20,911 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73d1d390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:10:20, skipping insertion in model container [2023-05-04 08:10:20,911 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 08:10:20" (1/1) ... [2023-05-04 08:10:20,916 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-05-04 08:10:20,956 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-05-04 08:10:21,321 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-lit/qw2004-2b.i[30003,30016] [2023-05-04 08:10:21,342 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 08:10:21,349 INFO L203 MainTranslator]: Completed pre-run [2023-05-04 08:10:21,388 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-lit/qw2004-2b.i[30003,30016] [2023-05-04 08:10:21,405 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 08:10:21,443 INFO L208 MainTranslator]: Completed translation [2023-05-04 08:10:21,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:10:21 WrapperNode [2023-05-04 08:10:21,444 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-05-04 08:10:21,445 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-04 08:10:21,445 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-04 08:10:21,445 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-04 08:10:21,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:10:21" (1/1) ... [2023-05-04 08:10:21,478 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:10:21" (1/1) ... [2023-05-04 08:10:21,498 INFO L138 Inliner]: procedures = 175, calls = 36, calls flagged for inlining = 9, calls inlined = 10, statements flattened = 117 [2023-05-04 08:10:21,498 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-04 08:10:21,499 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-04 08:10:21,499 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-04 08:10:21,499 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-04 08:10:21,509 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:10:21" (1/1) ... [2023-05-04 08:10:21,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:10:21" (1/1) ... [2023-05-04 08:10:21,521 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:10:21" (1/1) ... [2023-05-04 08:10:21,522 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:10:21" (1/1) ... [2023-05-04 08:10:21,532 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:10:21" (1/1) ... [2023-05-04 08:10:21,533 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:10:21" (1/1) ... [2023-05-04 08:10:21,535 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:10:21" (1/1) ... [2023-05-04 08:10:21,536 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:10:21" (1/1) ... [2023-05-04 08:10:21,538 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-04 08:10:21,538 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-04 08:10:21,538 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-04 08:10:21,539 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-04 08:10:21,539 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:10:21" (1/1) ... [2023-05-04 08:10:21,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 08:10:21,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 08:10:21,569 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) [2023-05-04 08:10:21,583 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 [2023-05-04 08:10:21,609 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpStop [2023-05-04 08:10:21,609 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpStop [2023-05-04 08:10:21,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-05-04 08:10:21,609 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-05-04 08:10:21,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-05-04 08:10:21,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-05-04 08:10:21,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-05-04 08:10:21,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-05-04 08:10:21,610 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-05-04 08:10:21,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-04 08:10:21,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-04 08:10:21,612 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2023-05-04 08:10:21,752 INFO L235 CfgBuilder]: Building ICFG [2023-05-04 08:10:21,771 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-04 08:10:21,937 INFO L276 CfgBuilder]: Performing block encoding [2023-05-04 08:10:21,957 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-04 08:10:21,957 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-05-04 08:10:21,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 08:10:21 BoogieIcfgContainer [2023-05-04 08:10:21,960 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-04 08:10:21,962 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-04 08:10:21,963 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-04 08:10:21,975 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-04 08:10:21,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.05 08:10:20" (1/3) ... [2023-05-04 08:10:21,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ffa48fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 08:10:21, skipping insertion in model container [2023-05-04 08:10:21,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 08:10:21" (2/3) ... [2023-05-04 08:10:21,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ffa48fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 08:10:21, skipping insertion in model container [2023-05-04 08:10:21,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 08:10:21" (3/3) ... [2023-05-04 08:10:21,978 INFO L112 eAbstractionObserver]: Analyzing ICFG qw2004-2b.i [2023-05-04 08:10:21,985 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-04 08:10:21,994 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-04 08:10:21,994 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-05-04 08:10:21,994 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-04 08:10:22,041 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-05-04 08:10:22,079 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 08:10:22,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 08:10:22,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 08:10:22,081 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-05-04 08:10:22,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-05-04 08:10:22,126 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 08:10:22,147 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-04 08:10:22,155 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=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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;@5150dabd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 08:10:22,156 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-05-04 08:10:22,345 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 08:10:22,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 08:10:22,351 INFO L85 PathProgramCache]: Analyzing trace with hash -570046305, now seen corresponding path program 1 times [2023-05-04 08:10:22,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 08:10:22,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423447736] [2023-05-04 08:10:22,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 08:10:22,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 08:10:22,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 08:10:22,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 08:10:22,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 08:10:22,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423447736] [2023-05-04 08:10:22,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423447736] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 08:10:22,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 08:10:22,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-05-04 08:10:22,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24854114] [2023-05-04 08:10:22,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 08:10:22,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-05-04 08:10:22,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 08:10:22,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-05-04 08:10:22,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-05-04 08:10:22,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 08:10:22,675 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 08:10:22,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 41.5) internal successors, (83), 2 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 08:10:22,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 08:10:22,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 08:10:22,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-05-04 08:10:22,717 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 08:10:22,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 08:10:22,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1171472336, now seen corresponding path program 1 times [2023-05-04 08:10:22,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 08:10:22,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960265101] [2023-05-04 08:10:22,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 08:10:22,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 08:10:22,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 08:10:22,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 08:10:22,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 08:10:22,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960265101] [2023-05-04 08:10:22,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960265101] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 08:10:22,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 08:10:22,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-05-04 08:10:22,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449311609] [2023-05-04 08:10:22,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 08:10:22,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-05-04 08:10:22,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 08:10:22,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-05-04 08:10:22,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-05-04 08:10:22,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 08:10:22,952 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 08:10:22,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 08:10:22,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 08:10:22,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 08:10:23,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 08:10:23,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 08:10:23,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-05-04 08:10:23,034 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 08:10:23,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 08:10:23,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1365584781, now seen corresponding path program 1 times [2023-05-04 08:10:23,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 08:10:23,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136619256] [2023-05-04 08:10:23,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 08:10:23,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 08:10:23,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 08:10:23,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 08:10:23,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 08:10:23,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136619256] [2023-05-04 08:10:23,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136619256] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 08:10:23,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 08:10:23,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-05-04 08:10:23,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697355172] [2023-05-04 08:10:23,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 08:10:23,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-05-04 08:10:23,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 08:10:23,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-05-04 08:10:23,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-05-04 08:10:23,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 08:10:23,231 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 08:10:23,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 9 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 08:10:23,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 08:10:23,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 08:10:23,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 08:10:23,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 08:10:23,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 08:10:23,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 08:10:23,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-05-04 08:10:23,361 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 08:10:23,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 08:10:23,362 INFO L85 PathProgramCache]: Analyzing trace with hash 954123245, now seen corresponding path program 1 times [2023-05-04 08:10:23,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 08:10:23,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924289381] [2023-05-04 08:10:23,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 08:10:23,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 08:10:23,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 08:10:23,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 08:10:23,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 08:10:23,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924289381] [2023-05-04 08:10:23,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924289381] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 08:10:23,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 08:10:23,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-05-04 08:10:23,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694390576] [2023-05-04 08:10:23,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 08:10:23,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-05-04 08:10:23,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 08:10:23,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-05-04 08:10:23,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-05-04 08:10:23,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 08:10:23,500 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 08:10:23,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 08:10:23,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 08:10:23,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 08:10:23,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 08:10:23,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 08:10:23,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 08:10:23,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 08:10:23,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-05-04 08:10:23,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 08:10:23,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-05-04 08:10:23,863 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 08:10:23,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 08:10:23,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1209687341, now seen corresponding path program 2 times [2023-05-04 08:10:23,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 08:10:23,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942686710] [2023-05-04 08:10:23,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 08:10:23,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 08:10:23,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-05-04 08:10:23,889 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-05-04 08:10:23,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-05-04 08:10:23,931 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-05-04 08:10:23,931 INFO L359 BasicCegarLoop]: Counterexample is feasible [2023-05-04 08:10:23,932 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-05-04 08:10:23,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-05-04 08:10:23,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-05-04 08:10:23,944 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2023-05-04 08:10:23,951 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-05-04 08:10:23,951 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-05-04 08:10:24,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.05 08:10:24 BasicIcfg [2023-05-04 08:10:24,013 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-05-04 08:10:24,014 INFO L158 Benchmark]: Toolchain (without parser) took 3110.27ms. Allocated memory was 181.4MB in the beginning and 219.2MB in the end (delta: 37.7MB). Free memory was 157.0MB in the beginning and 167.9MB in the end (delta: -10.9MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2023-05-04 08:10:24,014 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 181.4MB. Free memory was 141.9MB in the beginning and 141.8MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 8.0GB. [2023-05-04 08:10:24,015 INFO L158 Benchmark]: CACSL2BoogieTranslator took 537.27ms. Allocated memory was 181.4MB in the beginning and 219.2MB in the end (delta: 37.7MB). Free memory was 156.6MB in the beginning and 181.0MB in the end (delta: -24.4MB). Peak memory consumption was 13.2MB. Max. memory is 8.0GB. [2023-05-04 08:10:24,015 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.64ms. Allocated memory is still 219.2MB. Free memory was 181.0MB in the beginning and 179.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-05-04 08:10:24,015 INFO L158 Benchmark]: Boogie Preprocessor took 38.53ms. Allocated memory is still 219.2MB. Free memory was 179.0MB in the beginning and 177.8MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-05-04 08:10:24,016 INFO L158 Benchmark]: RCFGBuilder took 421.56ms. Allocated memory is still 219.2MB. Free memory was 177.4MB in the beginning and 162.3MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-05-04 08:10:24,016 INFO L158 Benchmark]: TraceAbstraction took 2050.86ms. Allocated memory is still 219.2MB. Free memory was 161.0MB in the beginning and 167.9MB in the end (delta: -6.9MB). There was no memory consumed. Max. memory is 8.0GB. [2023-05-04 08:10:24,022 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 181.4MB. Free memory was 141.9MB in the beginning and 141.8MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 537.27ms. Allocated memory was 181.4MB in the beginning and 219.2MB in the end (delta: 37.7MB). Free memory was 156.6MB in the beginning and 181.0MB in the end (delta: -24.4MB). Peak memory consumption was 13.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 53.64ms. Allocated memory is still 219.2MB. Free memory was 181.0MB in the beginning and 179.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 38.53ms. Allocated memory is still 219.2MB. Free memory was 179.0MB in the beginning and 177.8MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 421.56ms. Allocated memory is still 219.2MB. Free memory was 177.4MB in the beginning and 162.3MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 2050.86ms. Allocated memory is still 219.2MB. Free memory was 161.0MB in the beginning and 167.9MB in the end (delta: -6.9MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3905, independent: 3681, independent conditional: 1078, independent unconditional: 2603, dependent: 224, dependent conditional: 217, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3689, independent: 3681, independent conditional: 1078, independent unconditional: 2603, dependent: 8, dependent conditional: 1, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3689, independent: 3681, independent conditional: 1078, independent unconditional: 2603, dependent: 8, dependent conditional: 1, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3690, independent: 3681, independent conditional: 0, independent unconditional: 3681, dependent: 9, dependent conditional: 1, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3690, independent: 3681, independent conditional: 0, independent unconditional: 3681, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3690, independent: 3681, independent conditional: 0, independent unconditional: 3681, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2610, independent: 2603, independent conditional: 0, independent unconditional: 2603, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2610, independent: 2602, independent conditional: 0, independent unconditional: 2602, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 8, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 8, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 76, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 3690, independent: 1078, independent conditional: 0, independent unconditional: 1078, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 2610, unknown conditional: 0, unknown unconditional: 2610] , Statistics on independence cache: Total cache size (in pairs): 2610, Positive cache size: 2603, Positive conditional cache size: 0, Positive unconditional cache size: 2603, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1, Maximal queried relation: 1, Independence queries for same thread: 216 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.2s, Number of persistent set computation: 619, Number of trivial persistent sets: 619, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2610, independent: 2603, independent conditional: 0, independent unconditional: 2603, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3905, independent: 3681, independent conditional: 1078, independent unconditional: 2603, dependent: 224, dependent conditional: 217, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3689, independent: 3681, independent conditional: 1078, independent unconditional: 2603, dependent: 8, dependent conditional: 1, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3689, independent: 3681, independent conditional: 1078, independent unconditional: 2603, dependent: 8, dependent conditional: 1, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3690, independent: 3681, independent conditional: 0, independent unconditional: 3681, dependent: 9, dependent conditional: 1, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3690, independent: 3681, independent conditional: 0, independent unconditional: 3681, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3690, independent: 3681, independent conditional: 0, independent unconditional: 3681, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2610, independent: 2603, independent conditional: 0, independent unconditional: 2603, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2610, independent: 2602, independent conditional: 0, independent unconditional: 2602, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 8, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 8, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 76, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 3690, independent: 1078, independent conditional: 0, independent unconditional: 1078, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 2610, unknown conditional: 0, unknown unconditional: 2610] , Statistics on independence cache: Total cache size (in pairs): 2610, Positive cache size: 2603, Positive conditional cache size: 0, Positive unconditional cache size: 2603, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1, Maximal queried relation: 1, Independence queries for same thread: 216 - CounterExampleResult [Line: 690]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L700] 0 volatile int stopped; VAL [stopped=0] [L699] 0 volatile int stoppingEvent; VAL [stopped=0, stoppingEvent=0] [L698] 0 volatile int pendingIo; VAL [pendingIo=0, stopped=0, stoppingEvent=0] [L697] 0 volatile int stoppingFlag; VAL [pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=0] [L756] 0 pthread_t t; VAL [pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L757] 0 pendingIo = 1 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L758] 0 stoppingFlag = 0 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L759] 0 stoppingEvent = 0 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L760] 0 stopped = 0 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L761] FCALL, FORK 0 pthread_create(&t, 0, BCSP_PnpStop, 0) VAL [pendingIo=1, pthread_create(&t, 0, BCSP_PnpStop, 0)=-1, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L762] CALL 0 BCSP_PnpAdd(0) [L734] 0 int status; VAL [arg={0:0}, arg={0:0}, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L735] CALL, EXPR 0 BCSP_IoIncrement() [L703] 0 int lsf = stoppingFlag; VAL [lsf=0, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L745] 1 stoppingFlag = 1 VAL [arg={0:0}, arg={0:0}, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] [L747] CALL 1 BCSP_IoDecrement() [L725] 1 int pending; VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] [L726] CALL, EXPR 1 dec() [L719] 1 pendingIo-- [L720] 1 int tmp = pendingIo; VAL [pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=1, tmp=0] [L722] 1 return tmp; VAL [\result=0, pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=1, tmp=0] [L726] RET, EXPR 1 dec() [L726] 1 pending = dec() VAL [dec()=0, pending=0, pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=1] [L727] COND TRUE 1 pending == 0 VAL [pending=0, pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=1] [L729] 1 stoppingEvent = 1 VAL [pending=0, pendingIo=0, stopped=0, stoppingEvent=1, stoppingFlag=1] [L747] RET 1 BCSP_IoDecrement() [L749] 1 int lse = stoppingEvent; VAL [arg={0:0}, arg={0:0}, lse=1, pendingIo=0, stopped=0, stoppingEvent=1, stoppingFlag=1] [L751] CALL 1 assume_abort_if_not(lse) [L686] COND FALSE 1 !(!cond) VAL [\old(cond)=1, cond=1, pendingIo=0, stopped=0, stoppingEvent=1, stoppingFlag=1] [L751] RET 1 assume_abort_if_not(lse) [L752] 1 stopped = 1 VAL [arg={0:0}, arg={0:0}, lse=1, pendingIo=0, stopped=1, stoppingEvent=1, stoppingFlag=1] [L753] 1 return 0; VAL [\result={0:0}, arg={0:0}, arg={0:0}, lse=1, pendingIo=0, stopped=1, stoppingEvent=1, stoppingFlag=1] [L705] COND FALSE 0 !(\read(lsf)) VAL [lsf=0, pendingIo=0, stopped=1, stoppingEvent=1, stoppingFlag=1] [L709] 0 int lp = pendingIo; VAL [lp=0, lsf=0, pendingIo=0, stopped=1, stoppingEvent=1, stoppingFlag=1] [L712] 0 pendingIo = lp + 1 VAL [lp=0, lsf=0, pendingIo=1, stopped=1, stoppingEvent=1, stoppingFlag=1] [L715] 0 return 0; VAL [\result=0, lp=0, lsf=0, pendingIo=1, stopped=1, stoppingEvent=1, stoppingFlag=1] [L735] RET, EXPR 0 BCSP_IoIncrement() [L735] 0 status = BCSP_IoIncrement() VAL [arg={0:0}, arg={0:0}, BCSP_IoIncrement()=0, pendingIo=1, status=0, stopped=1, stoppingEvent=1, stoppingFlag=1] [L736] COND TRUE 0 status == 0 VAL [arg={0:0}, arg={0:0}, pendingIo=1, status=0, stopped=1, stoppingEvent=1, stoppingFlag=1] [L737] 0 int local_assertion = !stopped; VAL [arg={0:0}, arg={0:0}, local_assertion=0, pendingIo=1, status=0, stopped=1, stoppingEvent=1, stoppingFlag=1] [L738] CALL 0 __VERIFIER_assert(local_assertion) [L689] COND TRUE 0 !(cond) VAL [\old(cond)=0, cond=0, pendingIo=1, stopped=1, stoppingEvent=1, stoppingFlag=1] [L690] 0 reach_error() VAL [\old(cond)=0, cond=0, pendingIo=1, stopped=1, stoppingEvent=1, stoppingFlag=1] - UnprovableResult [Line: 761]: 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 for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 146 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.8s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 27, 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, 0.6s InterpolantComputationTime, 405 NumberOfCodeBlocks, 405 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 319 ConstructedInterpolants, 0 QuantifiedInterpolants, 452 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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! [2023-05-04 08:10:24,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2023-05-04 08:10:24,260 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...