/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 ALL_READ_WRITE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-218013a [2023-05-04 04:49:57,460 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-05-04 04:49:57,462 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-05-04 04:49:57,514 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-05-04 04:49:57,515 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-05-04 04:49:57,520 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-05-04 04:49:57,522 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-05-04 04:49:57,525 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-05-04 04:49:57,526 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-05-04 04:49:57,532 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-05-04 04:49:57,533 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-05-04 04:49:57,534 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-05-04 04:49:57,534 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-05-04 04:49:57,535 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-05-04 04:49:57,536 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-05-04 04:49:57,536 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-05-04 04:49:57,537 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-05-04 04:49:57,538 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-05-04 04:49:57,539 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-05-04 04:49:57,540 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-05-04 04:49:57,541 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-05-04 04:49:57,547 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-05-04 04:49:57,548 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-05-04 04:49:57,550 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-05-04 04:49:57,558 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-05-04 04:49:57,558 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-05-04 04:49:57,558 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-05-04 04:49:57,559 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-05-04 04:49:57,560 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-05-04 04:49:57,560 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-05-04 04:49:57,561 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-05-04 04:49:57,561 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-05-04 04:49:57,563 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-05-04 04:49:57,563 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-05-04 04:49:57,564 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-05-04 04:49:57,564 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-05-04 04:49:57,565 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-05-04 04:49:57,565 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-05-04 04:49:57,565 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-05-04 04:49:57,566 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-05-04 04:49:57,566 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-05-04 04:49:57,567 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-04 04:49:57,599 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-04 04:49:57,599 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-04 04:49:57,600 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-04 04:49:57,600 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-04 04:49:57,601 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-04 04:49:57,601 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-04 04:49:57,601 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-04 04:49:57,601 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-04 04:49:57,602 INFO L138 SettingsManager]: * Use SBE=true [2023-05-04 04:49:57,602 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-04 04:49:57,602 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-04 04:49:57,603 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-04 04:49:57,603 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-04 04:49:57,603 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-04 04:49:57,603 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-04 04:49:57,603 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-04 04:49:57,603 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-04 04:49:57,603 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-04 04:49:57,603 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-04 04:49:57,604 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-04 04:49:57,604 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-04 04:49:57,604 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-04 04:49:57,604 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-04 04:49:57,605 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-04 04:49:57,605 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-04 04:49:57,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 04:49:57,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-04 04:49:57,606 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-04 04:49:57,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-04 04:49:57,606 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-04 04:49:57,606 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-04 04:49:57,606 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-04 04:49:57,606 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-04 04:49:57,607 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-04 04:49:57,607 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-04 04:49:57,607 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-04 04:49:57,607 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Considered threads and their maximal amount of steps -> 3,2 1,1 2,2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Defines what statements are considered a step in POR -> ALL_READ_WRITE [2023-05-04 04:49:57,868 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-04 04:49:57,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-04 04:49:57,899 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-04 04:49:57,900 INFO L271 PluginConnector]: Initializing CDTParser... [2023-05-04 04:49:57,901 INFO L275 PluginConnector]: CDTParser initialized [2023-05-04 04:49:57,903 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-1.i [2023-05-04 04:49:57,955 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca809b0db/42c805bba5cb4ed3a1c072bb10753d36/FLAG314adf1a0 [2023-05-04 04:49:58,471 INFO L306 CDTParser]: Found 1 translation units. [2023-05-04 04:49:58,472 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-1.i [2023-05-04 04:49:58,488 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca809b0db/42c805bba5cb4ed3a1c072bb10753d36/FLAG314adf1a0 [2023-05-04 04:49:58,939 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca809b0db/42c805bba5cb4ed3a1c072bb10753d36 [2023-05-04 04:49:58,941 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-04 04:49:58,942 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-05-04 04:49:58,945 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-05-04 04:49:58,945 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-05-04 04:49:58,948 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-05-04 04:49:58,948 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 04:49:58" (1/1) ... [2023-05-04 04:49:58,949 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46158938 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:49:58, skipping insertion in model container [2023-05-04 04:49:58,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 04:49:58" (1/1) ... [2023-05-04 04:49:58,956 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-05-04 04:49:59,014 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-05-04 04:49:59,415 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-ext/26_stack_cas_longest-1.i[31167,31180] [2023-05-04 04:49:59,430 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 04:49:59,443 INFO L203 MainTranslator]: Completed pre-run [2023-05-04 04:49:59,503 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-ext/26_stack_cas_longest-1.i[31167,31180] [2023-05-04 04:49:59,511 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 04:49:59,546 INFO L208 MainTranslator]: Completed translation [2023-05-04 04:49:59,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:49:59 WrapperNode [2023-05-04 04:49:59,546 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-05-04 04:49:59,547 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-04 04:49:59,548 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-04 04:49:59,548 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-04 04:49:59,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:49:59" (1/1) ... [2023-05-04 04:49:59,585 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:49:59" (1/1) ... [2023-05-04 04:49:59,612 INFO L138 Inliner]: procedures = 177, calls = 47, calls flagged for inlining = 16, calls inlined = 19, statements flattened = 187 [2023-05-04 04:49:59,613 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-04 04:49:59,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-04 04:49:59,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-04 04:49:59,614 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-04 04:49:59,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:49:59" (1/1) ... [2023-05-04 04:49:59,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:49:59" (1/1) ... [2023-05-04 04:49:59,636 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:49:59" (1/1) ... [2023-05-04 04:49:59,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:49:59" (1/1) ... [2023-05-04 04:49:59,642 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:49:59" (1/1) ... [2023-05-04 04:49:59,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:49:59" (1/1) ... [2023-05-04 04:49:59,649 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:49:59" (1/1) ... [2023-05-04 04:49:59,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:49:59" (1/1) ... [2023-05-04 04:49:59,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-04 04:49:59,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-04 04:49:59,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-04 04:49:59,658 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-04 04:49:59,660 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:49:59" (1/1) ... [2023-05-04 04:49:59,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 04:49:59,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 04:49:59,694 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 04:49:59,703 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 04:49:59,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-05-04 04:49:59,735 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-05-04 04:49:59,735 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-05-04 04:49:59,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-05-04 04:49:59,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-05-04 04:49:59,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-05-04 04:49:59,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-05-04 04:49:59,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-05-04 04:49:59,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-04 04:49:59,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-04 04:49:59,737 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 04:49:59,893 INFO L235 CfgBuilder]: Building ICFG [2023-05-04 04:49:59,894 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-04 04:50:00,210 INFO L276 CfgBuilder]: Performing block encoding [2023-05-04 04:50:00,364 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-04 04:50:00,364 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2023-05-04 04:50:00,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 04:50:00 BoogieIcfgContainer [2023-05-04 04:50:00,368 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-04 04:50:00,371 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-04 04:50:00,371 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-04 04:50:00,374 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-04 04:50:00,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.05 04:49:58" (1/3) ... [2023-05-04 04:50:00,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e8af46f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 04:50:00, skipping insertion in model container [2023-05-04 04:50:00,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 04:49:59" (2/3) ... [2023-05-04 04:50:00,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e8af46f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 04:50:00, skipping insertion in model container [2023-05-04 04:50:00,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 04:50:00" (3/3) ... [2023-05-04 04:50:00,378 INFO L112 eAbstractionObserver]: Analyzing ICFG 26_stack_cas_longest-1.i [2023-05-04 04:50:00,391 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-04 04:50:00,400 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-04 04:50:00,400 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-05-04 04:50:00,400 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-04 04:50:00,495 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-05-04 04:50:00,539 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 04:50:00,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 04:50:00,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 04:50:00,545 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 04:50:00,555 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 04:50:00,617 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 04:50:00,641 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork0 ======== [2023-05-04 04:50:00,649 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;@737c50ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 04:50:00,649 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-05-04 04:50:00,856 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 04:50:00,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 04:50:00,863 INFO L85 PathProgramCache]: Analyzing trace with hash -881766732, now seen corresponding path program 1 times [2023-05-04 04:50:00,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 04:50:00,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003037622] [2023-05-04 04:50:00,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 04:50:00,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 04:50:01,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 04:50:01,182 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 04:50:01,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 04:50:01,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003037622] [2023-05-04 04:50:01,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003037622] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 04:50:01,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 04:50:01,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-05-04 04:50:01,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295871977] [2023-05-04 04:50:01,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 04:50:01,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-05-04 04:50:01,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 04:50:01,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-05-04 04:50:01,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-05-04 04:50:01,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 04:50:01,220 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 04:50:01,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 50.0) internal successors, (100), 2 states have internal predecessors, (100), 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 04:50:01,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 04:50:01,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 04:50:01,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-05-04 04:50:01,322 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 04:50:01,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 04:50:01,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1733584495, now seen corresponding path program 1 times [2023-05-04 04:50:01,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 04:50:01,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106242310] [2023-05-04 04:50:01,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 04:50:01,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 04:50:01,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-05-04 04:50:01,483 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-05-04 04:50:01,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-05-04 04:50:01,568 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-05-04 04:50:01,569 INFO L359 BasicCegarLoop]: Counterexample is feasible [2023-05-04 04:50:01,570 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-05-04 04:50:01,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-05-04 04:50:01,583 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2023-05-04 04:50:01,585 INFO L307 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork0 was UNSAFE (1/2) [2023-05-04 04:50:01,588 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-05-04 04:50:01,588 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-05-04 04:50:01,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.05 04:50:01 BasicIcfg [2023-05-04 04:50:01,728 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-05-04 04:50:01,741 INFO L158 Benchmark]: Toolchain (without parser) took 2799.10ms. Allocated memory was 198.2MB in the beginning and 238.0MB in the end (delta: 39.8MB). Free memory was 140.9MB in the beginning and 129.5MB in the end (delta: 11.4MB). Peak memory consumption was 51.0MB. Max. memory is 8.0GB. [2023-05-04 04:50:01,742 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 198.2MB. Free memory is still 159.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-05-04 04:50:01,742 INFO L158 Benchmark]: CACSL2BoogieTranslator took 602.13ms. Allocated memory was 198.2MB in the beginning and 238.0MB in the end (delta: 39.8MB). Free memory was 140.7MB in the beginning and 201.9MB in the end (delta: -61.2MB). Peak memory consumption was 11.8MB. Max. memory is 8.0GB. [2023-05-04 04:50:01,742 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.55ms. Allocated memory is still 238.0MB. Free memory was 201.9MB in the beginning and 199.2MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-05-04 04:50:01,742 INFO L158 Benchmark]: Boogie Preprocessor took 42.94ms. Allocated memory is still 238.0MB. Free memory was 199.2MB in the beginning and 197.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-05-04 04:50:01,743 INFO L158 Benchmark]: RCFGBuilder took 710.55ms. Allocated memory is still 238.0MB. Free memory was 197.7MB in the beginning and 161.0MB in the end (delta: 36.7MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. [2023-05-04 04:50:01,743 INFO L158 Benchmark]: TraceAbstraction took 1356.96ms. Allocated memory is still 238.0MB. Free memory was 160.0MB in the beginning and 129.5MB in the end (delta: 30.5MB). Peak memory consumption was 31.9MB. Max. memory is 8.0GB. [2023-05-04 04:50:01,744 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 198.2MB. Free memory is still 159.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 602.13ms. Allocated memory was 198.2MB in the beginning and 238.0MB in the end (delta: 39.8MB). Free memory was 140.7MB in the beginning and 201.9MB in the end (delta: -61.2MB). Peak memory consumption was 11.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 65.55ms. Allocated memory is still 238.0MB. Free memory was 201.9MB in the beginning and 199.2MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 42.94ms. Allocated memory is still 238.0MB. Free memory was 199.2MB in the beginning and 197.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 710.55ms. Allocated memory is still 238.0MB. Free memory was 197.7MB in the beginning and 161.0MB in the end (delta: 36.7MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. * TraceAbstraction took 1356.96ms. Allocated memory is still 238.0MB. Free memory was 160.0MB in the beginning and 129.5MB in the end (delta: 30.5MB). Peak memory consumption was 31.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1200, independent: 1139, independent conditional: 48, independent unconditional: 1091, dependent: 61, dependent conditional: 54, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1147, independent: 1139, independent conditional: 48, independent unconditional: 1091, 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: 1147, independent: 1139, independent conditional: 48, independent unconditional: 1091, 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: 1148, independent: 1139, independent conditional: 0, independent unconditional: 1139, 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: 1148, independent: 1139, independent conditional: 0, independent unconditional: 1139, 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: 1148, independent: 1139, independent conditional: 0, independent unconditional: 1139, 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: 1068, independent: 1061, independent conditional: 0, independent unconditional: 1061, 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: 1068, independent: 1058, independent conditional: 0, independent unconditional: 1058, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 10, independent: 3, independent conditional: 0, independent unconditional: 3, 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: 10, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 108, independent: 65, independent conditional: 0, independent unconditional: 65, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1148, independent: 78, independent conditional: 0, independent unconditional: 78, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 1068, unknown conditional: 0, unknown unconditional: 1068] , Statistics on independence cache: Total cache size (in pairs): 1068, Positive cache size: 1061, Positive conditional cache size: 0, Positive unconditional cache size: 1061, 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: 53 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.2s, Number of persistent set computation: 163, Number of trivial persistent sets: 153, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1098, independent: 1091, independent conditional: 0, independent unconditional: 1091, 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: 1200, independent: 1139, independent conditional: 48, independent unconditional: 1091, dependent: 61, dependent conditional: 54, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1147, independent: 1139, independent conditional: 48, independent unconditional: 1091, 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: 1147, independent: 1139, independent conditional: 48, independent unconditional: 1091, 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: 1148, independent: 1139, independent conditional: 0, independent unconditional: 1139, 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: 1148, independent: 1139, independent conditional: 0, independent unconditional: 1139, 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: 1148, independent: 1139, independent conditional: 0, independent unconditional: 1139, 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: 1068, independent: 1061, independent conditional: 0, independent unconditional: 1061, 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: 1068, independent: 1058, independent conditional: 0, independent unconditional: 1058, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 10, independent: 3, independent conditional: 0, independent unconditional: 3, 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: 10, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 108, independent: 65, independent conditional: 0, independent unconditional: 65, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1148, independent: 78, independent conditional: 0, independent unconditional: 78, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 1068, unknown conditional: 0, unknown unconditional: 1068] , Statistics on independence cache: Total cache size (in pairs): 1068, Positive cache size: 1061, Positive conditional cache size: 0, Positive unconditional cache size: 1061, 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: 53 - CounterExampleResult [Line: 759]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L714] 0 int memory[(2*960+1)]; [L717] 0 int top; VAL [top={3:0}] [L769] 0 int m2 = 0; VAL [m2={4:0}, top={3:0}] [L715] 0 int next_alloc_idx = 1; VAL [m2={4:0}, next_alloc_idx=1, top={3:0}] [L770] 0 int state = 0; VAL [m2={4:0}, next_alloc_idx=1, state=0, top={3:0}] [L716] 0 int m = 0; VAL [m={5:0}, m2={4:0}, next_alloc_idx=1, state=0, top={3:0}] [L788] 0 pthread_t t; VAL [m={5:0}, m2={4:0}, next_alloc_idx=1, state=0, t={7:0}, top={3:0}] [L789] COND TRUE 0 1 VAL [m={5:0}, m2={4:0}, next_alloc_idx=1, state=0, t={7:0}, top={3:0}] [L789] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [m={5:0}, m2={4:0}, next_alloc_idx=1, pthread_create(&t, 0, thr1, 0)=-1, state=0, t={7:0}, top={3:0}] [L773] CALL 1 __VERIFIER_atomic_acquire(&m2) [L691] EXPR 1 \read(*m) [L691] CALL 1 assume_abort_if_not(*m==0) [L4] COND FALSE 1 !(!cond) [L691] RET 1 assume_abort_if_not(*m==0) [L692] 1 *m = 1 [L773] RET 1 __VERIFIER_atomic_acquire(&m2) [L776] 1 case 0: VAL [arg={0:0}, arg={0:0}, m={5:0}, m2={4:0}, next_alloc_idx=1, state=0, top={3:0}] [L789] COND TRUE 0 1 VAL [m={5:0}, m2={4:0}, next_alloc_idx=1, state=0, t={7:0}, top={3:0}] [L776] 1 case 0: VAL [arg={0:0}, arg={0:0}, m={5:0}, m2={4:0}, next_alloc_idx=1, state=0, top={3:0}] [L777] CALL 1 EBStack_init() [L732] 1 top = 0 VAL [m={5:0}, m2={4:0}, next_alloc_idx=1, state=0, top={3:0}] [L777] RET 1 EBStack_init() [L778] 1 state = 1 VAL [arg={0:0}, arg={0:0}, m={5:0}, m2={4:0}, next_alloc_idx=1, state=1, top={3:0}] [L789] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [m={5:0}, m2={4:0}, next_alloc_idx=1, pthread_create(&t, 0, thr1, 0)=0, state=1, t={7:0}, top={3:0}] [L779] 1 case 1: VAL [arg={0:0}, arg={0:0}, m={5:0}, m2={4:0}, next_alloc_idx=1, state=1, top={3:0}] [L780] CALL 1 __VERIFIER_atomic_release(&m2) [L696] EXPR 1 \read(*m) [L696] CALL 1 assume_abort_if_not(*m==1) [L4] COND FALSE 1 !(!cond) [L696] RET 1 assume_abort_if_not(*m==1) [L697] 1 *m = 0 [L780] RET 1 __VERIFIER_atomic_release(&m2) [L781] CALL 1 push_loop() [L762] 1 int r = -1; VAL [m={5:0}, m2={4:0}, next_alloc_idx=1, r=-1, state=1, top={3:0}] [L763] 1 int arg = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, arg=0, m={5:0}, m2={4:0}, next_alloc_idx=1, r=-1, state=1, top={3:0}] [L764] COND TRUE 1 1 VAL [arg=0, m={5:0}, m2={4:0}, next_alloc_idx=1, r=-1, state=1, top={3:0}] [L765] CALL, EXPR 1 push(arg) [L741] 1 int oldTop = -1, newTop = -1, casret = -1; VAL [\old(d)=0, casret={6:0}, d=0, m={5:0}, m2={4:0}, newTop=-1, next_alloc_idx=1, oldTop=-1, state=1, top={3:0}] [L742] CALL, EXPR 1 index_malloc() [L719] 1 int curr_alloc_idx = -1; VAL [curr_alloc_idx=-1, m={5:0}, m2={4:0}, next_alloc_idx=1, state=1, top={3:0}] [L720] CALL 1 __VERIFIER_atomic_acquire(&m) [L691] EXPR 1 \read(*m) [L691] CALL 1 assume_abort_if_not(*m==0) [L4] COND FALSE 1 !(!cond) [L691] RET 1 assume_abort_if_not(*m==0) [L692] 1 *m = 1 [L720] RET 1 __VERIFIER_atomic_acquire(&m) [L721] COND FALSE 1 !(next_alloc_idx+2-1 > (2*960+1)) VAL [curr_alloc_idx=-1, m={5:0}, m2={4:0}, next_alloc_idx=1, state=1, top={3:0}] [L725] 1 curr_alloc_idx = next_alloc_idx VAL [curr_alloc_idx=1, m={5:0}, m2={4:0}, next_alloc_idx=1, state=1, top={3:0}] [L726] 1 next_alloc_idx += 2 VAL [curr_alloc_idx=1, m={5:0}, m2={4:0}, next_alloc_idx=3, state=1, top={3:0}] [L727] CALL 1 __VERIFIER_atomic_release(&m) [L696] EXPR 1 \read(*m) [L696] CALL 1 assume_abort_if_not(*m==1) [L4] COND FALSE 1 !(!cond) [L696] RET 1 assume_abort_if_not(*m==1) [L697] 1 *m = 0 [L727] RET 1 __VERIFIER_atomic_release(&m) [L729] 1 return curr_alloc_idx; VAL [\result=1, curr_alloc_idx=1, m={5:0}, m2={4:0}, next_alloc_idx=3, state=1, top={3:0}] [L742] RET, EXPR 1 index_malloc() [L742] 1 newTop = index_malloc() VAL [\old(d)=0, casret={6:0}, d=0, index_malloc()=1, m={5:0}, m2={4:0}, newTop=1, next_alloc_idx=3, oldTop=-1, state=1, top={3:0}] [L743] COND FALSE 1 !(newTop == 0) VAL [\old(d)=0, casret={6:0}, d=0, m={5:0}, m2={4:0}, newTop=1, next_alloc_idx=3, oldTop=-1, state=1, top={3:0}] [L746] 1 memory[newTop+0] = d VAL [\old(d)=0, casret={6:0}, d=0, m={5:0}, m2={4:0}, newTop=1, next_alloc_idx=3, oldTop=-1, state=1, top={3:0}] [L747] COND TRUE 1 1 VAL [\old(d)=0, casret={6:0}, d=0, m={5:0}, m2={4:0}, newTop=1, next_alloc_idx=3, oldTop=-1, state=1, top={3:0}] [L748] EXPR 1 \read(top) VAL [\old(d)=0, \read(top)=0, casret={6:0}, d=0, m={5:0}, m2={4:0}, newTop=1, next_alloc_idx=3, oldTop=-1, state=1, top={3:0}] [L748] 1 oldTop = top VAL [\old(d)=0, \read(top)=0, casret={6:0}, d=0, m={5:0}, m2={4:0}, newTop=1, next_alloc_idx=3, oldTop=0, state=1, top={3:0}] [L749] 1 memory[newTop+1] = oldTop VAL [\old(d)=0, casret={6:0}, d=0, m={5:0}, m2={4:0}, newTop=1, next_alloc_idx=3, oldTop=0, state=1, top={3:0}] [L750] CALL 1 __VERIFIER_atomic_CAS(&top,oldTop,newTop,&casret) [L705] EXPR 1 \read(*v) [L705] COND TRUE 1 *v == e [L707] 1 *v = u [L707] 1 *r = 1 [L750] RET 1 __VERIFIER_atomic_CAS(&top,oldTop,newTop,&casret) [L751] EXPR 1 \read(casret) VAL [\old(d)=0, \read(casret)=1, casret={6:0}, d=0, m={5:0}, m2={4:0}, newTop=1, next_alloc_idx=3, oldTop=0, state=1, top={3:0}] [L751] COND TRUE 1 casret==1 VAL [\old(d)=0, \read(casret)=1, casret={6:0}, d=0, m={5:0}, m2={4:0}, newTop=1, next_alloc_idx=3, oldTop=0, state=1, top={3:0}] [L752] 1 return 1; VAL [\old(d)=0, \result=1, casret={6:0}, d=0, m={5:0}, m2={4:0}, newTop=1, next_alloc_idx=3, oldTop=0, state=1, top={3:0}] [L741] 1 int oldTop = -1, newTop = -1, casret = -1; VAL [\old(d)=0, \result=1, casret={6:0}, d=0, m={5:0}, m2={4:0}, newTop=1, next_alloc_idx=3, oldTop=0, state=1, top={3:0}] [L752] 1 return 1; VAL [\old(d)=0, \result=1, d=0, m={5:0}, m2={4:0}, newTop=1, next_alloc_idx=3, oldTop=0, state=1, top={3:0}] [L765] RET, EXPR 1 push(arg) [L765] 1 r = push(arg) VAL [arg=0, m={5:0}, m2={4:0}, next_alloc_idx=3, push(arg)=1, r=1, state=1, top={3:0}] [L766] CALL 1 __VERIFIER_atomic_assert(r) [L759] EXPR 1 !r || !isEmpty() [L759] CALL, EXPR 1 isEmpty() [L735] EXPR 1 \read(top) [L735] COND FALSE 1 !(top == 0) [L738] 1 return 0; [L759] RET, EXPR 1 isEmpty() [L759] EXPR 1 !r || !isEmpty() [L759] COND TRUE 1 !(!(!r || !isEmpty())) [L759] 1 reach_error() VAL [\old(r)=1, m={5:0}, m2={4:0}, next_alloc_idx=3, r=1, state=1, top={3:0}] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thr1Thread1of1ForFork0 with 1 thread instances CFG has 3 procedures, 191 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, 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: 2, 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, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 199 NumberOfCodeBlocks, 199 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 99 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 1/1 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 04:50:01,777 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 04:50:01,979 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...