./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/stateful01-1.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/stateful01-1.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2cc22fce Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread/stateful01-1.i ./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/stateful01-1.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-2cc22fc-m [2024-07-22 20:50:09,337 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-07-22 20:50:09,404 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-07-22 20:50:09,409 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-07-22 20:50:09,410 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-07-22 20:50:09,433 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-07-22 20:50:09,434 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-07-22 20:50:09,434 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-07-22 20:50:09,435 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-07-22 20:50:09,438 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-07-22 20:50:09,439 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-07-22 20:50:09,439 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-07-22 20:50:09,439 INFO L153 SettingsManager]: * Use SBE=true [2024-07-22 20:50:09,440 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-07-22 20:50:09,440 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-07-22 20:50:09,440 INFO L153 SettingsManager]: * sizeof long=4 [2024-07-22 20:50:09,441 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-07-22 20:50:09,441 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-07-22 20:50:09,441 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-07-22 20:50:09,441 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-07-22 20:50:09,441 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-07-22 20:50:09,442 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-07-22 20:50:09,442 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-07-22 20:50:09,442 INFO L153 SettingsManager]: * sizeof long double=12 [2024-07-22 20:50:09,442 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-07-22 20:50:09,442 INFO L153 SettingsManager]: * Use constant arrays=true [2024-07-22 20:50:09,443 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-07-22 20:50:09,443 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-07-22 20:50:09,443 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-07-22 20:50:09,443 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-07-22 20:50:09,444 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-07-22 20:50:09,444 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-07-22 20:50:09,444 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-07-22 20:50:09,444 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-07-22 20:50:09,445 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-07-22 20:50:09,445 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-07-22 20:50:09,445 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-07-22 20:50:09,445 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-07-22 20:50:09,445 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-07-22 20:50:09,445 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-07-22 20:50:09,445 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-07-22 20:50:09,445 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-07-22 20:50:09,446 INFO L153 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/UGemCutter-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-07-22 20:50:09,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-07-22 20:50:09,655 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-07-22 20:50:09,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-07-22 20:50:09,658 INFO L270 PluginConnector]: Initializing CDTParser... [2024-07-22 20:50:09,659 INFO L274 PluginConnector]: CDTParser initialized [2024-07-22 20:50:09,660 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread/stateful01-1.i [2024-07-22 20:50:10,778 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-07-22 20:50:10,999 INFO L384 CDTParser]: Found 1 translation units. [2024-07-22 20:50:10,999 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-1.i [2024-07-22 20:50:11,010 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/3afdc8dd8/f95f28373abb482593dea21dfddbb8de/FLAGb1cc83008 [2024-07-22 20:50:11,021 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/3afdc8dd8/f95f28373abb482593dea21dfddbb8de [2024-07-22 20:50:11,023 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-07-22 20:50:11,024 INFO L274 PluginConnector]: Witness Parser initialized [2024-07-22 20:50:11,025 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/stateful01-1.yml/witness.yml [2024-07-22 20:50:11,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-07-22 20:50:11,164 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-07-22 20:50:11,165 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-07-22 20:50:11,165 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-07-22 20:50:11,169 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-07-22 20:50:11,170 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 08:50:11" (1/2) ... [2024-07-22 20:50:11,170 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@413f8390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 08:50:11, skipping insertion in model container [2024-07-22 20:50:11,170 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 08:50:11" (1/2) ... [2024-07-22 20:50:11,173 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5113e960 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 08:50:11, skipping insertion in model container [2024-07-22 20:50:11,174 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 22.07 08:50:11" (2/2) ... [2024-07-22 20:50:11,174 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@413f8390 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.07 08:50:11, skipping insertion in model container [2024-07-22 20:50:11,174 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 22.07 08:50:11" (2/2) ... [2024-07-22 20:50:11,175 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-07-22 20:50:11,203 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-07-22 20:50:11,204 INFO L97 edCorrectnessWitness]: Location invariant before [L722-L722] (! multithreaded || (ma_locked || 5 <= data1)) && (! multithreaded || 5 <= data1) [2024-07-22 20:50:11,204 INFO L97 edCorrectnessWitness]: Location invariant before [L723-L723] (! multithreaded || (ma_locked || 5 <= data1)) && (! multithreaded || 5 <= data1) [2024-07-22 20:50:11,205 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-07-22 20:50:11,205 INFO L103 edCorrectnessWitness]: ghost_variable ma_locked = 0 [2024-07-22 20:50:11,205 INFO L106 edCorrectnessWitness]: ghost_update [L699-L699] ma_locked = 1; [2024-07-22 20:50:11,205 INFO L106 edCorrectnessWitness]: ghost_update [L709-L709] ma_locked = 1; [2024-07-22 20:50:11,206 INFO L106 edCorrectnessWitness]: ghost_update [L721-L721] multithreaded = 1; [2024-07-22 20:50:11,206 INFO L106 edCorrectnessWitness]: ghost_update [L711-L711] ma_locked = 0; [2024-07-22 20:50:11,206 INFO L106 edCorrectnessWitness]: ghost_update [L696-L696] ma_locked = 1; [2024-07-22 20:50:11,206 INFO L106 edCorrectnessWitness]: ghost_update [L701-L701] ma_locked = 0; [2024-07-22 20:50:11,206 INFO L106 edCorrectnessWitness]: ghost_update [L698-L698] ma_locked = 0; [2024-07-22 20:50:11,207 INFO L106 edCorrectnessWitness]: ghost_update [L708-L708] ma_locked = 0; [2024-07-22 20:50:11,207 INFO L106 edCorrectnessWitness]: ghost_update [L706-L706] ma_locked = 1; [2024-07-22 20:50:11,244 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-07-22 20:50:11,548 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-1.i[30826,30839] [2024-07-22 20:50:11,552 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-07-22 20:50:11,563 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-07-22 20:50:11,645 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-1.i[30826,30839] [2024-07-22 20:50:11,651 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-07-22 20:50:11,686 INFO L206 MainTranslator]: Completed translation [2024-07-22 20:50:11,687 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.07 08:50:11 WrapperNode [2024-07-22 20:50:11,687 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-07-22 20:50:11,689 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-07-22 20:50:11,689 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-07-22 20:50:11,689 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-07-22 20:50:11,694 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.07 08:50:11" (1/1) ... [2024-07-22 20:50:11,718 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.07 08:50:11" (1/1) ... [2024-07-22 20:50:11,741 INFO L138 Inliner]: procedures = 168, calls = 28, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2024-07-22 20:50:11,742 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-07-22 20:50:11,743 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-07-22 20:50:11,743 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-07-22 20:50:11,743 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-07-22 20:50:11,750 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.07 08:50:11" (1/1) ... [2024-07-22 20:50:11,750 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.07 08:50:11" (1/1) ... [2024-07-22 20:50:11,758 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.07 08:50:11" (1/1) ... [2024-07-22 20:50:11,759 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.07 08:50:11" (1/1) ... [2024-07-22 20:50:11,770 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.07 08:50:11" (1/1) ... [2024-07-22 20:50:11,776 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.07 08:50:11" (1/1) ... [2024-07-22 20:50:11,777 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.07 08:50:11" (1/1) ... [2024-07-22 20:50:11,781 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.07 08:50:11" (1/1) ... [2024-07-22 20:50:11,783 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-07-22 20:50:11,787 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-07-22 20:50:11,787 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-07-22 20:50:11,787 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-07-22 20:50:11,788 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.07 08:50:11" (1/1) ... [2024-07-22 20:50:11,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-07-22 20:50:11,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-22 20:50:11,849 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-07-22 20:50:11,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-07-22 20:50:11,882 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-07-22 20:50:11,882 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-07-22 20:50:11,882 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-07-22 20:50:11,882 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-07-22 20:50:11,883 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-07-22 20:50:11,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-07-22 20:50:11,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-07-22 20:50:11,884 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-07-22 20:50:11,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-07-22 20:50:11,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-07-22 20:50:11,886 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-07-22 20:50:12,007 INFO L244 CfgBuilder]: Building ICFG [2024-07-22 20:50:12,009 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-07-22 20:50:12,173 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-07-22 20:50:12,174 INFO L293 CfgBuilder]: Performing block encoding [2024-07-22 20:50:12,265 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-07-22 20:50:12,265 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-07-22 20:50:12,265 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 08:50:12 BoogieIcfgContainer [2024-07-22 20:50:12,265 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-07-22 20:50:12,267 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-07-22 20:50:12,267 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-07-22 20:50:12,269 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-07-22 20:50:12,269 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 08:50:11" (1/4) ... [2024-07-22 20:50:12,270 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b3237e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 08:50:12, skipping insertion in model container [2024-07-22 20:50:12,270 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 22.07 08:50:11" (2/4) ... [2024-07-22 20:50:12,270 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b3237e9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 22.07 08:50:12, skipping insertion in model container [2024-07-22 20:50:12,270 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.07 08:50:11" (3/4) ... [2024-07-22 20:50:12,271 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b3237e9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 22.07 08:50:12, skipping insertion in model container [2024-07-22 20:50:12,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 08:50:12" (4/4) ... [2024-07-22 20:50:12,272 INFO L112 eAbstractionObserver]: Analyzing ICFG stateful01-1.i [2024-07-22 20:50:12,284 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-07-22 20:50:12,284 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-07-22 20:50:12,284 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-07-22 20:50:12,317 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-07-22 20:50:12,346 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-07-22 20:50:12,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-07-22 20:50:12,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-22 20:50:12,350 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-07-22 20:50:12,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-07-22 20:50:12,373 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-07-22 20:50:12,382 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-07-22 20:50:12,386 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@32549ad4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-07-22 20:50:12,387 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-07-22 20:50:12,618 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-07-22 20:50:12,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-22 20:50:12,624 INFO L85 PathProgramCache]: Analyzing trace with hash -995749104, now seen corresponding path program 1 times [2024-07-22 20:50:12,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-22 20:50:12,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027175975] [2024-07-22 20:50:12,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-22 20:50:12,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-22 20:50:12,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-22 20:50:12,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-22 20:50:12,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-22 20:50:12,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027175975] [2024-07-22 20:50:12,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027175975] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-22 20:50:12,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-07-22 20:50:12,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-07-22 20:50:12,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350137414] [2024-07-22 20:50:12,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-22 20:50:12,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-07-22 20:50:12,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-22 20:50:12,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-07-22 20:50:12,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-07-22 20:50:12,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-22 20:50:12,859 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-22 20:50:12,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-07-22 20:50:12,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-22 20:50:12,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-07-22 20:50:12,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-07-22 20:50:12,955 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-07-22 20:50:12,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-22 20:50:12,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1004124268, now seen corresponding path program 1 times [2024-07-22 20:50:12,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-22 20:50:12,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445639250] [2024-07-22 20:50:12,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-22 20:50:12,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-22 20:50:12,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-07-22 20:50:12,994 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-07-22 20:50:13,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-07-22 20:50:13,032 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-07-22 20:50:13,033 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-07-22 20:50:13,034 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2024-07-22 20:50:13,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 5 remaining) [2024-07-22 20:50:13,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 5 remaining) [2024-07-22 20:50:13,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-07-22 20:50:13,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-07-22 20:50:13,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-07-22 20:50:13,045 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-07-22 20:50:13,048 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-07-22 20:50:13,048 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-07-22 20:50:13,098 INFO L507 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-07-22 20:50:13,098 INFO L508 ceAbstractionStarter]: WitnessConsidered=2 [2024-07-22 20:50:13,099 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 08:50:13 BasicIcfg [2024-07-22 20:50:13,099 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-07-22 20:50:13,099 INFO L158 Benchmark]: Toolchain (without parser) took 1935.31ms. Allocated memory is still 172.0MB. Free memory was 142.0MB in the beginning and 88.0MB in the end (delta: 54.0MB). Peak memory consumption was 52.8MB. Max. memory is 16.1GB. [2024-07-22 20:50:13,100 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 130.0MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-07-22 20:50:13,100 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 130.0MB. Free memory was 99.9MB in the beginning and 99.9MB in the end (delta: 26.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-07-22 20:50:13,104 INFO L158 Benchmark]: CACSL2BoogieTranslator took 522.49ms. Allocated memory is still 172.0MB. Free memory was 142.0MB in the beginning and 115.8MB in the end (delta: 26.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-07-22 20:50:13,105 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.22ms. Allocated memory is still 172.0MB. Free memory was 115.8MB in the beginning and 113.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-07-22 20:50:13,105 INFO L158 Benchmark]: Boogie Preprocessor took 43.83ms. Allocated memory is still 172.0MB. Free memory was 113.7MB in the beginning and 111.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-07-22 20:50:13,105 INFO L158 Benchmark]: RCFGBuilder took 478.63ms. Allocated memory is still 172.0MB. Free memory was 111.6MB in the beginning and 83.3MB in the end (delta: 28.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-07-22 20:50:13,106 INFO L158 Benchmark]: TraceAbstraction took 832.26ms. Allocated memory is still 172.0MB. Free memory was 82.2MB in the beginning and 88.0MB in the end (delta: -5.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-07-22 20:50:13,108 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 130.0MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.14ms. Allocated memory is still 130.0MB. Free memory was 99.9MB in the beginning and 99.9MB in the end (delta: 26.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 522.49ms. Allocated memory is still 172.0MB. Free memory was 142.0MB in the beginning and 115.8MB in the end (delta: 26.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.22ms. Allocated memory is still 172.0MB. Free memory was 115.8MB in the beginning and 113.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.83ms. Allocated memory is still 172.0MB. Free memory was 113.7MB in the beginning and 111.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 478.63ms. Allocated memory is still 172.0MB. Free memory was 111.6MB in the beginning and 83.3MB in the end (delta: 28.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 832.26ms. Allocated memory is still 172.0MB. Free memory was 82.2MB in the beginning and 88.0MB in the end (delta: -5.8MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 285, independent: 276, independent conditional: 27, independent unconditional: 249, dependent: 9, dependent conditional: 3, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 282, independent: 276, independent conditional: 27, independent unconditional: 249, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 282, independent: 276, independent conditional: 27, independent unconditional: 249, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 282, independent: 276, independent conditional: 0, independent unconditional: 276, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 282, independent: 276, independent conditional: 0, independent unconditional: 276, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 282, independent: 276, independent conditional: 0, independent unconditional: 276, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 255, independent: 249, independent conditional: 0, independent unconditional: 249, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 255, independent: 220, independent conditional: 0, independent unconditional: 220, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 35, independent: 29, independent conditional: 0, independent unconditional: 29, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 35, independent: 29, independent conditional: 0, independent unconditional: 29, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 210, independent: 193, independent conditional: 0, independent unconditional: 193, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 282, independent: 27, independent conditional: 0, independent unconditional: 27, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 255, unknown conditional: 0, unknown unconditional: 255] , Statistics on independence cache: Total cache size (in pairs): 255, Positive cache size: 249, Positive conditional cache size: 0, Positive unconditional cache size: 249, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 3 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.3s, Number of persistent set computation: 30, Number of trivial persistent sets: 30, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 255, independent: 249, independent conditional: 0, independent unconditional: 249, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 285, independent: 276, independent conditional: 27, independent unconditional: 249, dependent: 9, dependent conditional: 3, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 282, independent: 276, independent conditional: 27, independent unconditional: 249, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 282, independent: 276, independent conditional: 27, independent unconditional: 249, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 282, independent: 276, independent conditional: 0, independent unconditional: 276, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 282, independent: 276, independent conditional: 0, independent unconditional: 276, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 282, independent: 276, independent conditional: 0, independent unconditional: 276, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 255, independent: 249, independent conditional: 0, independent unconditional: 249, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 255, independent: 220, independent conditional: 0, independent unconditional: 220, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 35, independent: 29, independent conditional: 0, independent unconditional: 29, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 35, independent: 29, independent conditional: 0, independent unconditional: 29, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 210, independent: 193, independent conditional: 0, independent unconditional: 193, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 282, independent: 27, independent conditional: 0, independent unconditional: 27, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 255, unknown conditional: 0, unknown unconditional: 255] , Statistics on independence cache: Total cache size (in pairs): 255, Positive cache size: 249, Positive conditional cache size: 0, Positive unconditional cache size: 249, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 3 - CounterExampleResult [Line: 727]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1] 0 //@ ghost int multithreaded = 0; [L1] 0 //@ ghost int ma_locked = 0; [L692] 0 pthread_mutex_t ma, mb; [L693] 0 int data1, data2; [L716] 0 pthread_t t1, t2; [L719] 0 data1 = 10 [L720] 0 data2 = 10 [L721] 0 //@ ghost multithreaded = 1; VAL [data1=10, data2=10, ma={3:0}, mb={4:0}, t1=5] [L721] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [\old(arg)={0:0}, data1=10, data2=10, ma={3:0}, mb={4:0}, t1=5] [L696] 1 //@ ghost ma_locked = 1; [L697] 1 data1++ VAL [\old(arg)={0:0}, arg={0:0}, data1=11, data2=10, ma={3:0}, mb={4:0}] [L698] 1 //@ ghost ma_locked = 0; [L699] 1 //@ ghost ma_locked = 1; [L700] 1 data2++ VAL [\old(arg)={0:0}, arg={0:0}, data1=11, data2=11, ma={3:0}, mb={4:0}] [L701] 1 //@ ghost ma_locked = 0; [L702] 1 return 0; [L722] 0 //@ assert ((!multithreaded || (ma_locked || (5 <= data1))) && (!multithreaded || (5 <= data1))); [L722] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, data1=11, data2=11, ma={3:0}, mb={4:0}, t1=5, t2=6] [L706] 2 //@ ghost ma_locked = 1; [L707] 2 data1+=5 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=11, ma={3:0}, mb={4:0}] [L708] 2 //@ ghost ma_locked = 0; [L709] 2 //@ ghost ma_locked = 1; [L710] 2 data2-=6 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}] [L711] 2 //@ ghost ma_locked = 0; [L712] 2 return 0; [L723] 0 //@ assert ((!multithreaded || (ma_locked || (5 <= data1))) && (!multithreaded || (5 <= data1))); VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1=5, t2=6] [L723] FCALL, JOIN 1 pthread_join(t1, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1=5, t2=6] [L724] FCALL, JOIN 2 pthread_join(t2, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1=5, t2=6] [L725] COND TRUE 0 data1==16 && data2==5 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1=5, t2=6] [L727] 0 reach_error() VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1=5, t2=6] - UnprovableResult [Line: 722]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 723]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 721]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 722]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 59 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, 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: 4, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 39 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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! [2024-07-22 20:50:13,132 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2024-07-22 20:50:13,341 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE