./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/stack_longest-2.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-09-02_08-21-23.files/mutex-meet-ghost/stack_longest-2.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e94c40da 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/stack_longest-2.i ./goblint.2024-09-02_08-21-23.files/mutex-meet-ghost/stack_longest-2.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-e94c40d-m [2024-09-23 00:12:52,321 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-23 00:12:52,392 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-23 00:12:52,398 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-23 00:12:52,399 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-23 00:12:52,430 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-23 00:12:52,431 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-23 00:12:52,431 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-23 00:12:52,432 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-23 00:12:52,433 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-23 00:12:52,434 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-23 00:12:52,434 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-23 00:12:52,434 INFO L153 SettingsManager]: * Use SBE=true [2024-09-23 00:12:52,435 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-23 00:12:52,436 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-23 00:12:52,437 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-23 00:12:52,437 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-23 00:12:52,437 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-23 00:12:52,438 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-23 00:12:52,438 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-23 00:12:52,438 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-23 00:12:52,442 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-23 00:12:52,442 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-23 00:12:52,443 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-23 00:12:52,443 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-23 00:12:52,443 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-23 00:12:52,443 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-23 00:12:52,444 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-23 00:12:52,444 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-23 00:12:52,444 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-23 00:12:52,444 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-23 00:12:52,445 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-23 00:12:52,445 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-23 00:12:52,445 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-23 00:12:52,445 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-23 00:12:52,446 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-23 00:12:52,446 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-23 00:12:52,446 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-23 00:12:52,447 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-23 00:12:52,447 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-23 00:12:52,448 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-23 00:12:52,448 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-09-23 00:12:52,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-23 00:12:52,713 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-23 00:12:52,716 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-23 00:12:52,717 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-23 00:12:52,718 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-23 00:12:52,719 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-09-02_08-21-23.files/mutex-meet-ghost/stack_longest-2.yml/witness.yml [2024-09-23 00:12:52,853 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-23 00:12:52,853 INFO L274 PluginConnector]: CDTParser initialized [2024-09-23 00:12:52,853 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread/stack_longest-2.i [2024-09-23 00:12:54,194 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-23 00:12:54,477 INFO L384 CDTParser]: Found 1 translation units. [2024-09-23 00:12:54,478 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack_longest-2.i [2024-09-23 00:12:54,493 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/82302b3ed/283569ab9a07409686dfa3feed232d6f/FLAGdfad32b28 [2024-09-23 00:12:54,509 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/82302b3ed/283569ab9a07409686dfa3feed232d6f [2024-09-23 00:12:54,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-23 00:12:54,511 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-23 00:12:54,512 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-23 00:12:54,524 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-23 00:12:54,529 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-23 00:12:54,530 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.09 12:12:52" (1/2) ... [2024-09-23 00:12:54,530 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cc0129e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.09 12:12:54, skipping insertion in model container [2024-09-23 00:12:54,531 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.09 12:12:52" (1/2) ... [2024-09-23 00:12:54,532 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@cb4da17 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.09 12:12:54, skipping insertion in model container [2024-09-23 00:12:54,532 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.09 12:12:54" (2/2) ... [2024-09-23 00:12:54,532 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cc0129e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:12:54, skipping insertion in model container [2024-09-23 00:12:54,532 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.09 12:12:54" (2/2) ... [2024-09-23 00:12:54,604 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-23 00:12:54,605 INFO L1541 ArrayList]: Location invariant before [L1022-L1022] (! multithreaded || (m_locked || flag == (_Bool)0)) && (! multithreaded || flag == (_Bool)0) [2024-09-23 00:12:54,605 INFO L1541 ArrayList]: Location invariant before [L1023-L1023] (! multithreaded || (m_locked || flag == (_Bool)0)) && (! multithreaded || flag == (_Bool)0) [2024-09-23 00:12:54,606 INFO L1541 ArrayList]: ghost_variable m_locked = 0 [2024-09-23 00:12:54,606 INFO L1541 ArrayList]: ghost_variable multithreaded = 0 [2024-09-23 00:12:54,606 INFO L1541 ArrayList]: ghost_update [L998-L998] m_locked = 0; [2024-09-23 00:12:54,606 INFO L1541 ArrayList]: ghost_update [L998-L998] m_locked = 0; [2024-09-23 00:12:54,606 INFO L1541 ArrayList]: ghost_update [L998-L998] m_locked = 0; [2024-09-23 00:12:54,606 INFO L1541 ArrayList]: ghost_update [L998-L998] m_locked = 0; [2024-09-23 00:12:54,606 INFO L1541 ArrayList]: ghost_update [L998-L998] m_locked = 0; [2024-09-23 00:12:54,606 INFO L1541 ArrayList]: ghost_update [L998-L998] m_locked = 0; [2024-09-23 00:12:54,606 INFO L1541 ArrayList]: ghost_update [L1013-L1013] m_locked = 0; [2024-09-23 00:12:54,607 INFO L1541 ArrayList]: ghost_update [L1013-L1013] m_locked = 0; [2024-09-23 00:12:54,607 INFO L1541 ArrayList]: ghost_update [L1013-L1013] m_locked = 0; [2024-09-23 00:12:54,607 INFO L1541 ArrayList]: ghost_update [L1013-L1013] m_locked = 0; [2024-09-23 00:12:54,607 INFO L1541 ArrayList]: ghost_update [L1013-L1013] m_locked = 0; [2024-09-23 00:12:54,607 INFO L1541 ArrayList]: ghost_update [L1013-L1013] m_locked = 0; [2024-09-23 00:12:54,607 INFO L1541 ArrayList]: ghost_update [L1013-L1013] m_locked = 0; [2024-09-23 00:12:54,607 INFO L1541 ArrayList]: ghost_update [L1013-L1013] m_locked = 0; [2024-09-23 00:12:54,607 INFO L1541 ArrayList]: ghost_update [L1013-L1013] m_locked = 0; [2024-09-23 00:12:54,607 INFO L1541 ArrayList]: ghost_update [L993-L993] m_locked = 1; [2024-09-23 00:12:54,608 INFO L1541 ArrayList]: ghost_update [L993-L993] m_locked = 1; [2024-09-23 00:12:54,608 INFO L1541 ArrayList]: ghost_update [L993-L993] m_locked = 1; [2024-09-23 00:12:54,608 INFO L1541 ArrayList]: ghost_update [L993-L993] m_locked = 1; [2024-09-23 00:12:54,608 INFO L1541 ArrayList]: ghost_update [L993-L993] m_locked = 1; [2024-09-23 00:12:54,609 INFO L1541 ArrayList]: ghost_update [L993-L993] m_locked = 1; [2024-09-23 00:12:54,609 INFO L1541 ArrayList]: ghost_update [L1021-L1021] multithreaded = 1; [2024-09-23 00:12:54,609 INFO L1541 ArrayList]: ghost_update [L1007-L1007] m_locked = 1; [2024-09-23 00:12:54,610 INFO L1541 ArrayList]: ghost_update [L1007-L1007] m_locked = 1; [2024-09-23 00:12:54,610 INFO L1541 ArrayList]: ghost_update [L1007-L1007] m_locked = 1; [2024-09-23 00:12:54,610 INFO L1541 ArrayList]: ghost_update [L1007-L1007] m_locked = 1; [2024-09-23 00:12:54,611 INFO L1541 ArrayList]: ghost_update [L1007-L1007] m_locked = 1; [2024-09-23 00:12:54,611 INFO L1541 ArrayList]: ghost_update [L1007-L1007] m_locked = 1; [2024-09-23 00:12:54,611 INFO L1541 ArrayList]: ghost_update [L1007-L1007] m_locked = 1; [2024-09-23 00:12:54,611 INFO L1541 ArrayList]: ghost_update [L1007-L1007] m_locked = 1; [2024-09-23 00:12:54,611 INFO L1541 ArrayList]: ghost_update [L1007-L1007] m_locked = 1; [2024-09-23 00:12:54,661 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-23 00:12:55,108 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-23 00:12:55,119 INFO L200 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 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 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 [2024-09-23 00:12:55,227 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-23 00:12:55,280 INFO L204 MainTranslator]: Completed translation [2024-09-23 00:12:55,281 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:12:55 WrapperNode [2024-09-23 00:12:55,282 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-23 00:12:55,284 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-23 00:12:55,284 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-23 00:12:55,284 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-23 00:12:55,291 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:12:55" (1/1) ... [2024-09-23 00:12:55,317 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:12:55" (1/1) ... [2024-09-23 00:12:55,358 INFO L138 Inliner]: procedures = 277, calls = 31, calls flagged for inlining = 12, calls inlined = 13, statements flattened = 188 [2024-09-23 00:12:55,358 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-23 00:12:55,359 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-23 00:12:55,359 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-23 00:12:55,359 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-23 00:12:55,368 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:12:55" (1/1) ... [2024-09-23 00:12:55,368 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:12:55" (1/1) ... [2024-09-23 00:12:55,372 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:12:55" (1/1) ... [2024-09-23 00:12:55,375 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:12:55" (1/1) ... [2024-09-23 00:12:55,390 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:12:55" (1/1) ... [2024-09-23 00:12:55,393 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:12:55" (1/1) ... [2024-09-23 00:12:55,397 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:12:55" (1/1) ... [2024-09-23 00:12:55,399 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:12:55" (1/1) ... [2024-09-23 00:12:55,401 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-23 00:12:55,402 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-23 00:12:55,402 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-23 00:12:55,403 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-23 00:12:55,403 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:12:55" (1/1) ... [2024-09-23 00:12:55,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-23 00:12:55,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 00:12:55,438 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) [2024-09-23 00:12:55,444 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 [2024-09-23 00:12:55,491 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-09-23 00:12:55,491 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-09-23 00:12:55,491 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-09-23 00:12:55,492 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-09-23 00:12:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-09-23 00:12:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-23 00:12:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-23 00:12:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-09-23 00:12:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-23 00:12:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-23 00:12:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-23 00:12:55,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-23 00:12:55,494 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-09-23 00:12:55,668 INFO L242 CfgBuilder]: Building ICFG [2024-09-23 00:12:55,670 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-23 00:12:55,952 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-23 00:12:55,952 INFO L291 CfgBuilder]: Performing block encoding [2024-09-23 00:12:56,213 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-23 00:12:56,213 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-23 00:12:56,213 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.09 12:12:56 BoogieIcfgContainer [2024-09-23 00:12:56,214 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-23 00:12:56,216 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-23 00:12:56,216 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-23 00:12:56,219 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-23 00:12:56,219 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.09 12:12:52" (1/4) ... [2024-09-23 00:12:56,220 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ecac40f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 23.09 12:12:56, skipping insertion in model container [2024-09-23 00:12:56,220 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.09 12:12:54" (2/4) ... [2024-09-23 00:12:56,220 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ecac40f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.09 12:12:56, skipping insertion in model container [2024-09-23 00:12:56,220 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:12:55" (3/4) ... [2024-09-23 00:12:56,221 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ecac40f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.09 12:12:56, skipping insertion in model container [2024-09-23 00:12:56,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.09 12:12:56" (4/4) ... [2024-09-23 00:12:56,222 INFO L112 eAbstractionObserver]: Analyzing ICFG stack_longest-2.i [2024-09-23 00:12:56,241 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-23 00:12:56,242 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-09-23 00:12:56,242 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-23 00:12:56,297 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-09-23 00:12:56,341 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-23 00:12:56,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-23 00:12:56,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 00:12:56,344 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) [2024-09-23 00:12:56,346 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 [2024-09-23 00:12:56,383 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-23 00:12:56,396 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-23 00:12:56,405 INFO L336 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@445e75b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-23 00:12:56,406 INFO L337 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-09-23 00:12:56,522 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-23 00:12:56,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 00:12:56,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1630153082, now seen corresponding path program 1 times [2024-09-23 00:12:56,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 00:12:56,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845178535] [2024-09-23 00:12:56,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 00:12:56,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 00:12:56,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 00:12:57,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 00:12:57,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 00:12:57,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845178535] [2024-09-23 00:12:57,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845178535] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 00:12:57,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 00:12:57,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-09-23 00:12:57,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653462313] [2024-09-23 00:12:57,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 00:12:57,029 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-23 00:12:57,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 00:12:57,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-23 00:12:57,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-23 00:12:57,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:12:57,054 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 00:12:57,055 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2024-09-23 00:12:57,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:12:57,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 00:12:57,165 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-09-23 00:12:57,165 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 4 remaining) [2024-09-23 00:12:57,166 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-09-23 00:12:57,166 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-09-23 00:12:57,166 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-23 00:12:57,173 INFO L408 BasicCegarLoop]: Path program histogram: [1] [2024-09-23 00:12:57,177 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-09-23 00:12:57,177 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-23 00:12:57,180 INFO L469 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-09-23 00:12:57,181 INFO L470 ceAbstractionStarter]: WitnessConsidered=2 [2024-09-23 00:12:57,182 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.09 12:12:57 BasicIcfg [2024-09-23 00:12:57,182 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-23 00:12:57,183 INFO L158 Benchmark]: Toolchain (without parser) took 2671.70ms. Allocated memory was 125.8MB in the beginning and 157.3MB in the end (delta: 31.5MB). Free memory was 94.5MB in the beginning and 98.0MB in the end (delta: -3.5MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. [2024-09-23 00:12:57,183 INFO L158 Benchmark]: Witness Parser took 0.24ms. Allocated memory is still 125.8MB. Free memory is still 78.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-23 00:12:57,183 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 125.8MB. Free memory is still 97.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-23 00:12:57,184 INFO L158 Benchmark]: CACSL2BoogieTranslator took 770.63ms. Allocated memory was 125.8MB in the beginning and 157.3MB in the end (delta: 31.5MB). Free memory was 94.3MB in the beginning and 88.1MB in the end (delta: 6.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-09-23 00:12:57,186 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.76ms. Allocated memory is still 157.3MB. Free memory was 88.1MB in the beginning and 85.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-23 00:12:57,186 INFO L158 Benchmark]: Boogie Preprocessor took 42.82ms. Allocated memory is still 157.3MB. Free memory was 85.4MB in the beginning and 83.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-23 00:12:57,187 INFO L158 Benchmark]: RCFGBuilder took 811.37ms. Allocated memory is still 157.3MB. Free memory was 83.4MB in the beginning and 82.9MB in the end (delta: 467.4kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-23 00:12:57,187 INFO L158 Benchmark]: TraceAbstraction took 966.57ms. Allocated memory is still 157.3MB. Free memory was 82.9MB in the beginning and 98.0MB in the end (delta: -15.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-23 00:12:57,193 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.24ms. Allocated memory is still 125.8MB. Free memory is still 78.8MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.16ms. Allocated memory is still 125.8MB. Free memory is still 97.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 770.63ms. Allocated memory was 125.8MB in the beginning and 157.3MB in the end (delta: 31.5MB). Free memory was 94.3MB in the beginning and 88.1MB in the end (delta: 6.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.76ms. Allocated memory is still 157.3MB. Free memory was 88.1MB in the beginning and 85.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.82ms. Allocated memory is still 157.3MB. Free memory was 85.4MB in the beginning and 83.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 811.37ms. Allocated memory is still 157.3MB. Free memory was 83.4MB in the beginning and 82.9MB in the end (delta: 467.4kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 966.57ms. Allocated memory is still 157.3MB. Free memory was 82.9MB in the beginning and 98.0MB in the end (delta: -15.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 321, independent: 302, independent conditional: 66, independent unconditional: 236, dependent: 19, dependent conditional: 17, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 304, independent: 302, independent conditional: 66, independent unconditional: 236, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 304, independent: 302, independent conditional: 66, independent unconditional: 236, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 304, independent: 302, independent conditional: 66, independent unconditional: 236, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 304, independent: 302, independent conditional: 0, independent unconditional: 302, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 304, independent: 302, independent conditional: 0, independent unconditional: 302, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 238, independent: 236, independent conditional: 0, independent unconditional: 236, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 238, independent: 219, independent conditional: 0, independent unconditional: 219, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 19, independent: 17, independent conditional: 0, independent unconditional: 17, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 19, independent: 17, independent conditional: 0, independent unconditional: 17, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 112, independent: 104, independent conditional: 0, independent unconditional: 104, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 304, independent: 66, independent conditional: 0, independent unconditional: 66, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 238, unknown conditional: 0, unknown unconditional: 238] , Statistics on independence cache: Total cache size (in pairs): 238, Positive cache size: 236, Positive conditional cache size: 0, Positive unconditional cache size: 236, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 66, Maximal queried relation: 0, Independence queries for same thread: 17, Persistent sets #1 benchmarks: Persistent set computation time: 0.1s, Number of persistent set computation: 19, Number of trivial persistent sets: 9, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 238, independent: 236, independent conditional: 0, independent unconditional: 236, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 321, independent: 302, independent conditional: 66, independent unconditional: 236, dependent: 19, dependent conditional: 17, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 304, independent: 302, independent conditional: 66, independent unconditional: 236, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 304, independent: 302, independent conditional: 66, independent unconditional: 236, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 304, independent: 302, independent conditional: 66, independent unconditional: 236, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 304, independent: 302, independent conditional: 0, independent unconditional: 302, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 304, independent: 302, independent conditional: 0, independent unconditional: 302, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 238, independent: 236, independent conditional: 0, independent unconditional: 236, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 238, independent: 219, independent conditional: 0, independent unconditional: 219, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 19, independent: 17, independent conditional: 0, independent unconditional: 17, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 19, independent: 17, independent conditional: 0, independent unconditional: 17, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 112, independent: 104, independent conditional: 0, independent unconditional: 104, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 304, independent: 66, independent conditional: 0, independent unconditional: 66, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 238, unknown conditional: 0, unknown unconditional: 238] , Statistics on independence cache: Total cache size (in pairs): 238, Positive cache size: 236, Positive conditional cache size: 0, Positive unconditional cache size: 236, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 66, Maximal queried relation: 0, Independence queries for same thread: 17 - PositiveResult [Line: 1022]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1023]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 45 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, 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: 3, 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, 0.3s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-09-23 00:12:57,229 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2024-09-23 00:12:57,428 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE