./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/protection-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/protection-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 [2024-09-08 00:18:15,433 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-08 00:18:15,488 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-08 00:18:15,492 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-08 00:18:15,492 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-08 00:18:15,507 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-08 00:18:15,507 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-08 00:18:15,507 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-08 00:18:15,508 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-08 00:18:15,508 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-08 00:18:15,509 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-08 00:18:15,509 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-08 00:18:15,509 INFO L153 SettingsManager]: * Use SBE=true [2024-09-08 00:18:15,509 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-08 00:18:15,510 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-08 00:18:15,510 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-08 00:18:15,510 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-08 00:18:15,510 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-08 00:18:15,511 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-08 00:18:15,511 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-08 00:18:15,513 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-08 00:18:15,514 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-08 00:18:15,514 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-08 00:18:15,514 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-08 00:18:15,514 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-08 00:18:15,515 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-08 00:18:15,515 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-08 00:18:15,515 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-08 00:18:15,515 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-08 00:18:15,516 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-08 00:18:15,516 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 00:18:15,516 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-08 00:18:15,516 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-08 00:18:15,516 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-08 00:18:15,517 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-08 00:18:15,517 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-08 00:18:15,517 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-08 00:18:15,518 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-08 00:18:15,518 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-08 00:18:15,518 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-08 00:18:15,519 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-08 00:18:15,519 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-09-08 00:18:15,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-08 00:18:15,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-08 00:18:15,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-08 00:18:15,757 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-08 00:18:15,757 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-08 00:18:15,758 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-09-02_08-21-23.files/protection-ghost/queue_longest.yml/witness.yml [2024-09-08 00:18:15,844 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-08 00:18:15,845 INFO L274 PluginConnector]: CDTParser initialized [2024-09-08 00:18:15,845 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread/queue_longest.i [2024-09-08 00:18:17,107 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-08 00:18:17,357 INFO L384 CDTParser]: Found 1 translation units. [2024-09-08 00:18:17,358 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_longest.i [2024-09-08 00:18:17,374 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/cc3fe22b6/aac714cfca584258a5f97d4e4eae09f6/FLAG00bca97a6 [2024-09-08 00:18:17,693 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/cc3fe22b6/aac714cfca584258a5f97d4e4eae09f6 [2024-09-08 00:18:17,693 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-08 00:18:17,694 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-08 00:18:17,696 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-08 00:18:17,696 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-08 00:18:17,700 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-08 00:18:17,701 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 12:18:15" (1/2) ... [2024-09-08 00:18:17,701 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dd6e11f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 12:18:17, skipping insertion in model container [2024-09-08 00:18:17,702 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 12:18:15" (1/2) ... [2024-09-08 00:18:17,703 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@574ab1e7 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 12:18:17, skipping insertion in model container [2024-09-08 00:18:17,703 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 12:18:17" (2/2) ... [2024-09-08 00:18:17,703 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dd6e11f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:18:17, skipping insertion in model container [2024-09-08 00:18:17,703 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 12:18:17" (2/2) ... [2024-09-08 00:18:17,755 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-08 00:18:17,756 INFO L1541 ArrayList]: Location invariant before [L1064-L1064] ! multithreaded || (((0 <= queue.head && 0 <= queue.tail) && queue.head <= 800) && queue.tail <= 800) [2024-09-08 00:18:17,756 INFO L1541 ArrayList]: Location invariant before [L1063-L1063] ! multithreaded || (((0 <= queue.head && 0 <= queue.tail) && queue.head <= 800) && queue.tail <= 800) [2024-09-08 00:18:17,757 INFO L1541 ArrayList]: ghost_variable multithreaded = 0 [2024-09-08 00:18:17,757 INFO L1541 ArrayList]: ghost_variable m_locked = 0 [2024-09-08 00:18:17,757 INFO L1541 ArrayList]: ghost_update [L1020-L1020] m_locked = 1; [2024-09-08 00:18:17,757 INFO L1541 ArrayList]: ghost_update [L1020-L1020] m_locked = 1; [2024-09-08 00:18:17,757 INFO L1541 ArrayList]: ghost_update [L1020-L1020] m_locked = 1; [2024-09-08 00:18:17,757 INFO L1541 ArrayList]: ghost_update [L1020-L1020] m_locked = 1; [2024-09-08 00:18:17,757 INFO L1541 ArrayList]: ghost_update [L1020-L1020] m_locked = 1; [2024-09-08 00:18:17,757 INFO L1541 ArrayList]: ghost_update [L1020-L1020] m_locked = 1; [2024-09-08 00:18:17,757 INFO L1541 ArrayList]: ghost_update [L1062-L1062] multithreaded = 1; [2024-09-08 00:18:17,758 INFO L1541 ArrayList]: ghost_update [L1029-L1029] m_locked = 0; [2024-09-08 00:18:17,758 INFO L1541 ArrayList]: ghost_update [L1029-L1029] m_locked = 0; [2024-09-08 00:18:17,758 INFO L1541 ArrayList]: ghost_update [L1029-L1029] m_locked = 0; [2024-09-08 00:18:17,758 INFO L1541 ArrayList]: ghost_update [L1029-L1029] m_locked = 0; [2024-09-08 00:18:17,758 INFO L1541 ArrayList]: ghost_update [L1029-L1029] m_locked = 0; [2024-09-08 00:18:17,758 INFO L1541 ArrayList]: ghost_update [L1029-L1029] m_locked = 0; [2024-09-08 00:18:17,758 INFO L1541 ArrayList]: ghost_update [L1039-L1039] m_locked = 1; [2024-09-08 00:18:17,758 INFO L1541 ArrayList]: ghost_update [L1039-L1039] m_locked = 1; [2024-09-08 00:18:17,759 INFO L1541 ArrayList]: ghost_update [L1039-L1039] m_locked = 1; [2024-09-08 00:18:17,759 INFO L1541 ArrayList]: ghost_update [L1039-L1039] m_locked = 1; [2024-09-08 00:18:17,759 INFO L1541 ArrayList]: ghost_update [L1039-L1039] m_locked = 1; [2024-09-08 00:18:17,759 INFO L1541 ArrayList]: ghost_update [L1048-L1048] m_locked = 0; [2024-09-08 00:18:17,759 INFO L1541 ArrayList]: ghost_update [L1048-L1048] m_locked = 0; [2024-09-08 00:18:17,760 INFO L1541 ArrayList]: ghost_update [L1048-L1048] m_locked = 0; [2024-09-08 00:18:17,760 INFO L1541 ArrayList]: ghost_update [L1048-L1048] m_locked = 0; [2024-09-08 00:18:17,760 INFO L1541 ArrayList]: ghost_update [L1048-L1048] m_locked = 0; [2024-09-08 00:18:17,760 INFO L1541 ArrayList]: ghost_update [L1008-L1008] m_locked = 1; [2024-09-08 00:18:17,760 INFO L1541 ArrayList]: ghost_update [L1017-L1017] m_locked = 0; [2024-09-08 00:18:17,801 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-08 00:18:18,228 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 00:18:18,238 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 [2024-09-08 00:18:18,925 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 00:18:18,969 INFO L204 MainTranslator]: Completed translation [2024-09-08 00:18:18,970 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:18:18 WrapperNode [2024-09-08 00:18:18,970 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-08 00:18:18,971 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-08 00:18:18,971 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-08 00:18:18,971 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-08 00:18:18,977 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:18:18" (1/1) ... [2024-09-08 00:18:19,095 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:18:18" (1/1) ... [2024-09-08 00:18:19,382 INFO L138 Inliner]: procedures = 274, calls = 6480, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 19533 [2024-09-08 00:18:19,382 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-08 00:18:19,383 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-08 00:18:19,383 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-08 00:18:19,383 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-08 00:18:19,391 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:18:18" (1/1) ... [2024-09-08 00:18:19,391 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:18:18" (1/1) ... [2024-09-08 00:18:19,607 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:18:18" (1/1) ... [2024-09-08 00:18:19,607 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:18:18" (1/1) ... [2024-09-08 00:18:19,808 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:18:18" (1/1) ... [2024-09-08 00:18:19,959 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:18:18" (1/1) ... [2024-09-08 00:18:20,002 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:18:18" (1/1) ... [2024-09-08 00:18:20,026 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:18:18" (1/1) ... [2024-09-08 00:18:20,095 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-08 00:18:20,096 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-08 00:18:20,097 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-08 00:18:20,097 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-08 00:18:20,098 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:18:18" (1/1) ... [2024-09-08 00:18:20,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 00:18:20,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 00:18:20,127 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) [2024-09-08 00:18:20,132 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 [2024-09-08 00:18:20,168 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-09-08 00:18:20,169 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-09-08 00:18:20,169 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-09-08 00:18:20,169 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-09-08 00:18:20,169 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-09-08 00:18:20,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-08 00:18:20,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-08 00:18:20,169 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-09-08 00:18:20,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-08 00:18:20,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-08 00:18:20,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-08 00:18:20,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-08 00:18:20,174 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-09-08 00:18:20,989 INFO L242 CfgBuilder]: Building ICFG [2024-09-08 00:18:20,991 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-08 00:18:30,095 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-08 00:18:30,096 INFO L291 CfgBuilder]: Performing block encoding