./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 --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-09-02_08-21-23.files/mutex-meet-ghost/queue_longest.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a4c57e3 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.2024-09-02_08-21-23.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.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-wip.fs.witness-ghost-4a4c57e-m [2024-09-07 21:31:18,187 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-07 21:31:18,272 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-07 21:31:18,278 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-07 21:31:18,278 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-07 21:31:18,308 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-07 21:31:18,309 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-07 21:31:18,310 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-07 21:31:18,310 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-07 21:31:18,314 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-07 21:31:18,315 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-07 21:31:18,315 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-07 21:31:18,315 INFO L153 SettingsManager]: * Use SBE=true [2024-09-07 21:31:18,316 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-07 21:31:18,317 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-07 21:31:18,318 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-07 21:31:18,318 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-07 21:31:18,318 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-07 21:31:18,319 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-07 21:31:18,319 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-07 21:31:18,319 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-07 21:31:18,320 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-07 21:31:18,320 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-07 21:31:18,320 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-07 21:31:18,321 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-07 21:31:18,321 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-07 21:31:18,321 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-07 21:31:18,322 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-07 21:31:18,322 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-07 21:31:18,323 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-07 21:31:18,324 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-07 21:31:18,334 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-07 21:31:18,335 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-07 21:31:18,335 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-07 21:31:18,335 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-07 21:31:18,336 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-07 21:31:18,336 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-07 21:31:18,336 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-07 21:31:18,336 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-07 21:31:18,337 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-07 21:31:18,337 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-07 21:31:18,337 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-09-07 21:31:18,586 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-07 21:31:18,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-07 21:31:18,611 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-07 21:31:18,612 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-07 21:31:18,613 INFO L274 PluginConnector]: CDTParser initialized [2024-09-07 21:31:18,614 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread/queue_longest.i [2024-09-07 21:31:20,042 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-07 21:31:20,279 INFO L384 CDTParser]: Found 1 translation units. [2024-09-07 21:31:20,279 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_longest.i [2024-09-07 21:31:20,298 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/672db7d7c/b78470d93c514a63877f9c654fe0e784/FLAG367a27eb3 [2024-09-07 21:31:20,314 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/672db7d7c/b78470d93c514a63877f9c654fe0e784 [2024-09-07 21:31:20,316 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-07 21:31:20,317 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-07 21:31:20,317 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-09-02_08-21-23.files/mutex-meet-ghost/queue_longest.yml/witness.yml [2024-09-07 21:31:20,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-07 21:31:20,407 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-07 21:31:20,411 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-07 21:31:20,411 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-07 21:31:20,416 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-07 21:31:20,416 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 09:31:20" (1/2) ... [2024-09-07 21:31:20,417 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@399143c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 09:31:20, skipping insertion in model container [2024-09-07 21:31:20,417 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 09:31:20" (1/2) ... [2024-09-07 21:31:20,419 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@249aad38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 09:31:20, skipping insertion in model container [2024-09-07 21:31:20,419 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.09 09:31:20" (2/2) ... [2024-09-07 21:31:20,420 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@399143c5 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:31:20, skipping insertion in model container [2024-09-07 21:31:20,420 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.09 09:31:20" (2/2) ... [2024-09-07 21:31:20,495 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-07 21:31:20,497 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))) [2024-09-07 21:31:20,497 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))) [2024-09-07 21:31:20,497 INFO L1541 ArrayList]: ghost_variable multithreaded = 0 [2024-09-07 21:31:20,497 INFO L1541 ArrayList]: ghost_variable m_locked = 0 [2024-09-07 21:31:20,497 INFO L1541 ArrayList]: ghost_update [L1048-L1048] m_locked = 0; [2024-09-07 21:31:20,497 INFO L1541 ArrayList]: ghost_update [L1048-L1048] m_locked = 0; [2024-09-07 21:31:20,498 INFO L1541 ArrayList]: ghost_update [L1048-L1048] m_locked = 0; [2024-09-07 21:31:20,498 INFO L1541 ArrayList]: ghost_update [L1048-L1048] m_locked = 0; [2024-09-07 21:31:20,498 INFO L1541 ArrayList]: ghost_update [L1048-L1048] m_locked = 0; [2024-09-07 21:31:20,498 INFO L1541 ArrayList]: ghost_update [L1062-L1062] multithreaded = 1; [2024-09-07 21:31:20,498 INFO L1541 ArrayList]: ghost_update [L1008-L1008] m_locked = 1; [2024-09-07 21:31:20,498 INFO L1541 ArrayList]: ghost_update [L1029-L1029] m_locked = 0; [2024-09-07 21:31:20,499 INFO L1541 ArrayList]: ghost_update [L1029-L1029] m_locked = 0; [2024-09-07 21:31:20,499 INFO L1541 ArrayList]: ghost_update [L1029-L1029] m_locked = 0; [2024-09-07 21:31:20,499 INFO L1541 ArrayList]: ghost_update [L1029-L1029] m_locked = 0; [2024-09-07 21:31:20,499 INFO L1541 ArrayList]: ghost_update [L1029-L1029] m_locked = 0; [2024-09-07 21:31:20,499 INFO L1541 ArrayList]: ghost_update [L1029-L1029] m_locked = 0; [2024-09-07 21:31:20,500 INFO L1541 ArrayList]: ghost_update [L1017-L1017] m_locked = 0; [2024-09-07 21:31:20,500 INFO L1541 ArrayList]: ghost_update [L1039-L1039] m_locked = 1; [2024-09-07 21:31:20,500 INFO L1541 ArrayList]: ghost_update [L1039-L1039] m_locked = 1; [2024-09-07 21:31:20,500 INFO L1541 ArrayList]: ghost_update [L1039-L1039] m_locked = 1; [2024-09-07 21:31:20,500 INFO L1541 ArrayList]: ghost_update [L1039-L1039] m_locked = 1; [2024-09-07 21:31:20,500 INFO L1541 ArrayList]: ghost_update [L1039-L1039] m_locked = 1; [2024-09-07 21:31:20,500 INFO L1541 ArrayList]: ghost_update [L1020-L1020] m_locked = 1; [2024-09-07 21:31:20,501 INFO L1541 ArrayList]: ghost_update [L1020-L1020] m_locked = 1; [2024-09-07 21:31:20,501 INFO L1541 ArrayList]: ghost_update [L1020-L1020] m_locked = 1; [2024-09-07 21:31:20,501 INFO L1541 ArrayList]: ghost_update [L1020-L1020] m_locked = 1; [2024-09-07 21:31:20,501 INFO L1541 ArrayList]: ghost_update [L1020-L1020] m_locked = 1; [2024-09-07 21:31:20,501 INFO L1541 ArrayList]: ghost_update [L1020-L1020] m_locked = 1; [2024-09-07 21:31:20,553 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-07 21:31:20,959 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-07 21:31:20,970 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 [2024-09-07 21:31:22,464 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-07 21:31:22,518 INFO L204 MainTranslator]: Completed translation [2024-09-07 21:31:22,518 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:31:22 WrapperNode [2024-09-07 21:31:22,518 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-07 21:31:22,520 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-07 21:31:22,520 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-07 21:31:22,520 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-07 21:31:22,526 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 07.09 09:31:22" (1/1) ... [2024-09-07 21:31:22,841 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 07.09 09:31:22" (1/1) ... [2024-09-07 21:31:24,082 INFO L138 Inliner]: procedures = 274, calls = 12904, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 38789 [2024-09-07 21:31:24,083 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-07 21:31:24,084 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-07 21:31:24,084 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-07 21:31:24,085 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-07 21:31:24,094 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:31:22" (1/1) ... [2024-09-07 21:31:24,094 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:31:22" (1/1) ... [2024-09-07 21:31:24,398 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:31:22" (1/1) ... [2024-09-07 21:31:24,399 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:31:22" (1/1) ... [2024-09-07 21:31:25,043 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:31:22" (1/1) ... [2024-09-07 21:31:25,166 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:31:22" (1/1) ... [2024-09-07 21:31:25,267 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:31:22" (1/1) ... [2024-09-07 21:31:25,332 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:31:22" (1/1) ... [2024-09-07 21:31:25,491 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-07 21:31:25,492 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-07 21:31:25,492 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-07 21:31:25,492 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-07 21:31:25,493 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:31:22" (1/1) ... [2024-09-07 21:31:25,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-07 21:31:25,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-07 21:31:25,520 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) [2024-09-07 21:31:25,522 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 [2024-09-07 21:31:25,563 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-09-07 21:31:25,563 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-09-07 21:31:25,563 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-09-07 21:31:25,564 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-09-07 21:31:25,564 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-09-07 21:31:25,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-07 21:31:25,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-07 21:31:25,565 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-09-07 21:31:25,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-07 21:31:25,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-07 21:31:25,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-07 21:31:25,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-07 21:31:25,573 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-09-07 21:31:27,190 INFO L242 CfgBuilder]: Building ICFG [2024-09-07 21:31:27,192 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-07 21:31:46,961 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-07 21:31:46,962 INFO L291 CfgBuilder]: Performing block encoding