./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/queue_longest.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-08-20_10-08-36.files/mutex-meet-ghost/queue_longest.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version da67795f 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/queue_longest.i ./goblint.2024-08-20_10-08-36.files/mutex-meet-ghost/queue_longest.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.dk.goblint-eval-da67795-m [2024-08-27 04:56:30,064 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-27 04:56:30,131 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-08-27 04:56:30,135 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-27 04:56:30,136 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-27 04:56:30,166 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-27 04:56:30,166 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-27 04:56:30,167 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-27 04:56:30,167 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-27 04:56:30,168 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-27 04:56:30,169 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-27 04:56:30,169 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-27 04:56:30,170 INFO L153 SettingsManager]: * Use SBE=true [2024-08-27 04:56:30,173 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-27 04:56:30,174 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-27 04:56:30,174 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-27 04:56:30,174 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-27 04:56:30,174 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-27 04:56:30,175 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-27 04:56:30,175 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-27 04:56:30,176 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-27 04:56:30,176 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-27 04:56:30,177 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-27 04:56:30,177 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-27 04:56:30,177 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-27 04:56:30,177 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-27 04:56:30,178 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-27 04:56:30,178 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-27 04:56:30,178 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-27 04:56:30,178 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-27 04:56:30,179 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-27 04:56:30,179 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-27 04:56:30,179 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-27 04:56:30,179 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-27 04:56:30,180 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-27 04:56:30,180 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-08-27 04:56:30,181 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-27 04:56:30,181 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-27 04:56:30,181 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-08-27 04:56:30,181 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-27 04:56:30,182 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-08-27 04:56:30,182 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-08-27 04:56:30,182 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-08-27 04:56:30,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-27 04:56:30,468 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-27 04:56:30,470 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-27 04:56:30,471 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-27 04:56:30,472 INFO L274 PluginConnector]: CDTParser initialized [2024-08-27 04:56:30,473 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread/queue_longest.i [2024-08-27 04:56:31,889 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-27 04:56:32,134 INFO L384 CDTParser]: Found 1 translation units. [2024-08-27 04:56:32,135 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_longest.i [2024-08-27 04:56:32,158 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/d78f0a7cf/4cfa0d6aaa464a159c8e84c008918a20/FLAGca444df78 [2024-08-27 04:56:32,171 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/d78f0a7cf/4cfa0d6aaa464a159c8e84c008918a20 [2024-08-27 04:56:32,173 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-27 04:56:32,174 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-27 04:56:32,174 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-08-20_10-08-36.files/mutex-meet-ghost/queue_longest.yml/witness.yml [2024-08-27 04:56:32,269 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-27 04:56:32,271 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-08-27 04:56:32,272 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-27 04:56:32,272 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-27 04:56:32,280 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-27 04:56:32,281 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:56:32" (1/2) ... [2024-08-27 04:56:32,283 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c5487f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:56:32, skipping insertion in model container [2024-08-27 04:56:32,283 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:56:32" (1/2) ... [2024-08-27 04:56:32,284 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@694a2863 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:56:32, skipping insertion in model container [2024-08-27 04:56:32,284 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.08 04:56:32" (2/2) ... [2024-08-27 04:56:32,284 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c5487f2 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 04:56:32, skipping insertion in model container [2024-08-27 04:56:32,285 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.08 04:56:32" (2/2) ... [2024-08-27 04:56:32,285 INFO L85 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-08-27 04:56:32,355 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-08-27 04:56:32,356 INFO L1541 ArrayList]: Location invariant before [L1063-L1063] ((! multithreaded || (m_locked || (((0 <= queue.head && 0 <= queue.tail) && queue.head <= 800) && queue.tail <= 800))) && (! multithreaded || (((0 <= queue.head && 0 <= queue.tail) && queue.head <= 800) && queue.tail <= 800))) && (! multithreaded || (m_locked || ((-1LL + (long long )dequeue_flag) + (long long )enqueue_flag >= 0LL && (1LL - (long long )dequeue_flag) - (long long )enqueue_flag >= 0LL))) [2024-08-27 04:56:32,357 INFO L1541 ArrayList]: Location invariant before [L1064-L1064] ((! multithreaded || (m_locked || (((0 <= queue.head && 0 <= queue.tail) && queue.head <= 800) && queue.tail <= 800))) && (! multithreaded || (((0 <= queue.head && 0 <= queue.tail) && queue.head <= 800) && queue.tail <= 800))) && (! multithreaded || (m_locked || ((-1LL + (long long )dequeue_flag) + (long long )enqueue_flag >= 0LL && (1LL - (long long )dequeue_flag) - (long long )enqueue_flag >= 0LL))) [2024-08-27 04:56:32,357 INFO L1541 ArrayList]: ghost_variable multithreaded = 0 [2024-08-27 04:56:32,357 INFO L1541 ArrayList]: ghost_variable m_locked = 0 [2024-08-27 04:56:32,357 INFO L1541 ArrayList]: ghost_update [L1020-L1020] m_locked = 1; [2024-08-27 04:56:32,358 INFO L1541 ArrayList]: ghost_update [L1020-L1020] m_locked = 1; [2024-08-27 04:56:32,358 INFO L1541 ArrayList]: ghost_update [L1020-L1020] m_locked = 1; [2024-08-27 04:56:32,358 INFO L1541 ArrayList]: ghost_update [L1020-L1020] m_locked = 1; [2024-08-27 04:56:32,359 INFO L1541 ArrayList]: ghost_update [L1020-L1020] m_locked = 1; [2024-08-27 04:56:32,359 INFO L1541 ArrayList]: ghost_update [L1020-L1020] m_locked = 1; [2024-08-27 04:56:32,359 INFO L1541 ArrayList]: ghost_update [L1029-L1029] m_locked = 0; [2024-08-27 04:56:32,359 INFO L1541 ArrayList]: ghost_update [L1029-L1029] m_locked = 0; [2024-08-27 04:56:32,359 INFO L1541 ArrayList]: ghost_update [L1029-L1029] m_locked = 0; [2024-08-27 04:56:32,359 INFO L1541 ArrayList]: ghost_update [L1029-L1029] m_locked = 0; [2024-08-27 04:56:32,360 INFO L1541 ArrayList]: ghost_update [L1029-L1029] m_locked = 0; [2024-08-27 04:56:32,360 INFO L1541 ArrayList]: ghost_update [L1029-L1029] m_locked = 0; [2024-08-27 04:56:32,360 INFO L1541 ArrayList]: ghost_update [L1039-L1039] m_locked = 1; [2024-08-27 04:56:32,360 INFO L1541 ArrayList]: ghost_update [L1039-L1039] m_locked = 1; [2024-08-27 04:56:32,360 INFO L1541 ArrayList]: ghost_update [L1039-L1039] m_locked = 1; [2024-08-27 04:56:32,360 INFO L1541 ArrayList]: ghost_update [L1039-L1039] m_locked = 1; [2024-08-27 04:56:32,361 INFO L1541 ArrayList]: ghost_update [L1039-L1039] m_locked = 1; [2024-08-27 04:56:32,361 INFO L1541 ArrayList]: ghost_update [L1062-L1062] multithreaded = 1; [2024-08-27 04:56:32,361 INFO L1541 ArrayList]: ghost_update [L1017-L1017] m_locked = 0; [2024-08-27 04:56:32,361 INFO L1541 ArrayList]: ghost_update [L1048-L1048] m_locked = 0; [2024-08-27 04:56:32,362 INFO L1541 ArrayList]: ghost_update [L1048-L1048] m_locked = 0; [2024-08-27 04:56:32,362 INFO L1541 ArrayList]: ghost_update [L1048-L1048] m_locked = 0; [2024-08-27 04:56:32,362 INFO L1541 ArrayList]: ghost_update [L1048-L1048] m_locked = 0; [2024-08-27 04:56:32,362 INFO L1541 ArrayList]: ghost_update [L1048-L1048] m_locked = 0; [2024-08-27 04:56:32,362 INFO L1541 ArrayList]: ghost_update [L1008-L1008] m_locked = 1; [2024-08-27 04:56:32,416 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-08-27 04:56:32,815 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/queue_longest.i[43296,43309] [2024-08-27 04:56:32,824 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/queue_longest.i[43503,43516] [2024-08-27 04:56:32,826 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/queue_longest.i[43783,43796] [2024-08-27 04:56:32,830 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-27 04:56:32,842 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 Start Parsing Local Start Parsing Local Start Parsing Local [2024-08-27 04:56:32,915 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/queue_longest.i[43296,43309] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-08-27 04:56:32,918 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/queue_longest.i[43503,43516] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-08-27 04:56:32,921 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/queue_longest.i[43783,43796] Start Parsing Local Start Parsing Local Start Parsing Local [2024-08-27 04:56:34,386 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-27 04:56:34,446 INFO L206 MainTranslator]: Completed translation [2024-08-27 04:56:34,446 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 04:56:34 WrapperNode [2024-08-27 04:56:34,446 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-27 04:56:34,447 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-08-27 04:56:34,447 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-08-27 04:56:34,447 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-08-27 04:56:34,454 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 27.08 04:56:34" (1/1) ... [2024-08-27 04:56:34,746 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 27.08 04:56:34" (1/1) ... [2024-08-27 04:56:35,711 INFO L138 Inliner]: procedures = 274, calls = 12901, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 38783 [2024-08-27 04:56:35,713 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-08-27 04:56:35,714 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-27 04:56:35,714 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-27 04:56:35,714 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-27 04:56:35,724 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 04:56:34" (1/1) ... [2024-08-27 04:56:35,724 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 04:56:34" (1/1) ... [2024-08-27 04:56:35,957 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 04:56:34" (1/1) ... [2024-08-27 04:56:35,958 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 04:56:34" (1/1) ... [2024-08-27 04:56:36,555 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 04:56:34" (1/1) ... [2024-08-27 04:56:36,694 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 04:56:34" (1/1) ... [2024-08-27 04:56:36,779 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 04:56:34" (1/1) ... [2024-08-27 04:56:36,840 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 04:56:34" (1/1) ... [2024-08-27 04:56:37,006 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-27 04:56:37,008 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-08-27 04:56:37,008 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-08-27 04:56:37,008 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-08-27 04:56:37,009 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 04:56:34" (1/1) ... [2024-08-27 04:56:37,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-27 04:56:37,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 04:56:37,167 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) [2024-08-27 04:56:37,169 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 [2024-08-27 04:56:37,210 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-08-27 04:56:37,211 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-08-27 04:56:37,211 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-08-27 04:56:37,211 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-08-27 04:56:37,211 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-08-27 04:56:37,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-08-27 04:56:37,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-08-27 04:56:37,212 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-08-27 04:56:37,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-27 04:56:37,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-08-27 04:56:37,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-27 04:56:37,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-27 04:56:37,220 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-08-27 04:56:38,843 INFO L242 CfgBuilder]: Building ICFG [2024-08-27 04:56:38,846 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-27 04:56:57,670 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-08-27 04:56:57,671 INFO L291 CfgBuilder]: Performing block encoding