./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/queue_longer.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-09-02_08-21-23.files/mutex-meet-ghost/queue_longer.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/queue_longer.i ./goblint.2024-09-02_08-21-23.files/mutex-meet-ghost/queue_longer.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 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-e94c40d-m [2024-09-22 19:55:44,710 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-22 19:55:44,771 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-22 19:55:44,775 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-22 19:55:44,776 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-22 19:55:44,798 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-22 19:55:44,798 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-22 19:55:44,798 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-22 19:55:44,799 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-22 19:55:44,799 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-22 19:55:44,799 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-22 19:55:44,799 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-22 19:55:44,800 INFO L153 SettingsManager]: * Use SBE=true [2024-09-22 19:55:44,800 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-22 19:55:44,800 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-22 19:55:44,800 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-22 19:55:44,800 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-22 19:55:44,801 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-22 19:55:44,801 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-22 19:55:44,801 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-22 19:55:44,801 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-22 19:55:44,804 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-22 19:55:44,804 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-22 19:55:44,804 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-22 19:55:44,804 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-22 19:55:44,804 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-22 19:55:44,804 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-22 19:55:44,805 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-22 19:55:44,805 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-22 19:55:44,805 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-22 19:55:44,805 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-22 19:55:44,805 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-22 19:55:44,805 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-22 19:55:44,806 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-22 19:55:44,806 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-22 19:55:44,806 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-22 19:55:44,806 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-22 19:55:44,806 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-22 19:55:44,806 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-22 19:55:44,807 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-22 19:55:44,807 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-22 19:55:44,809 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-09-22 19:55:44,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-22 19:55:44,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-22 19:55:44,995 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-22 19:55:44,997 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-22 19:55:44,997 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-22 19:55:44,998 INFO L431 ainManager$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_longer.yml/witness.yml [2024-09-22 19:55:45,091 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-22 19:55:45,091 INFO L274 PluginConnector]: CDTParser initialized [2024-09-22 19:55:45,092 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread/queue_longer.i [2024-09-22 19:55:46,276 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-22 19:55:46,481 INFO L384 CDTParser]: Found 1 translation units. [2024-09-22 19:55:46,484 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_longer.i [2024-09-22 19:55:46,499 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/c1438647d/c57481d9085d4705b9b2119e477a9724/FLAG8da6fab50 [2024-09-22 19:55:46,514 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/c1438647d/c57481d9085d4705b9b2119e477a9724 [2024-09-22 19:55:46,516 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-22 19:55:46,517 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-22 19:55:46,519 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-22 19:55:46,519 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-22 19:55:46,523 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-22 19:55:46,524 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 22.09 07:55:45" (1/2) ... [2024-09-22 19:55:46,524 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ad83a18 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.09 07:55:46, skipping insertion in model container [2024-09-22 19:55:46,524 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 22.09 07:55:45" (1/2) ... [2024-09-22 19:55:46,526 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@e406d7c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.09 07:55:46, skipping insertion in model container [2024-09-22 19:55:46,526 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.09 07:55:46" (2/2) ... [2024-09-22 19:55:46,526 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ad83a18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 07:55:46, skipping insertion in model container [2024-09-22 19:55:46,526 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.09 07:55:46" (2/2) ... [2024-09-22 19:55:46,590 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-22 19:55:46,591 INFO L1541 ArrayList]: Location invariant before [L1063-L1063] ((! multithreaded || (m_locked || (((0 <= queue.head && 0 <= queue.tail) && queue.head <= 400) && queue.tail <= 400))) && (! multithreaded || (((0 <= queue.head && 0 <= queue.tail) && queue.head <= 400) && queue.tail <= 400))) && (! multithreaded || (m_locked || ((-1LL + (long long )dequeue_flag) + (long long )enqueue_flag >= 0LL && (1LL - (long long )dequeue_flag) - (long long )enqueue_flag >= 0LL))) [2024-09-22 19:55:46,591 INFO L1541 ArrayList]: Location invariant before [L1064-L1064] ((! multithreaded || (m_locked || (((0 <= queue.head && 0 <= queue.tail) && queue.head <= 400) && queue.tail <= 400))) && (! multithreaded || (((0 <= queue.head && 0 <= queue.tail) && queue.head <= 400) && queue.tail <= 400))) && (! multithreaded || (m_locked || ((-1LL + (long long )dequeue_flag) + (long long )enqueue_flag >= 0LL && (1LL - (long long )dequeue_flag) - (long long )enqueue_flag >= 0LL))) [2024-09-22 19:55:46,591 INFO L1541 ArrayList]: ghost_variable m_locked = 0 [2024-09-22 19:55:46,591 INFO L1541 ArrayList]: ghost_variable multithreaded = 0 [2024-09-22 19:55:46,591 INFO L1541 ArrayList]: ghost_update [L1020-L1020] m_locked = 1; [2024-09-22 19:55:46,591 INFO L1541 ArrayList]: ghost_update [L1020-L1020] m_locked = 1; [2024-09-22 19:55:46,591 INFO L1541 ArrayList]: ghost_update [L1020-L1020] m_locked = 1; [2024-09-22 19:55:46,591 INFO L1541 ArrayList]: ghost_update [L1020-L1020] m_locked = 1; [2024-09-22 19:55:46,592 INFO L1541 ArrayList]: ghost_update [L1020-L1020] m_locked = 1; [2024-09-22 19:55:46,592 INFO L1541 ArrayList]: ghost_update [L1020-L1020] m_locked = 1; [2024-09-22 19:55:46,592 INFO L1541 ArrayList]: ghost_update [L1062-L1062] multithreaded = 1; [2024-09-22 19:55:46,592 INFO L1541 ArrayList]: ghost_update [L1039-L1039] m_locked = 1; [2024-09-22 19:55:46,592 INFO L1541 ArrayList]: ghost_update [L1039-L1039] m_locked = 1; [2024-09-22 19:55:46,592 INFO L1541 ArrayList]: ghost_update [L1039-L1039] m_locked = 1; [2024-09-22 19:55:46,592 INFO L1541 ArrayList]: ghost_update [L1039-L1039] m_locked = 1; [2024-09-22 19:55:46,592 INFO L1541 ArrayList]: ghost_update [L1039-L1039] m_locked = 1; [2024-09-22 19:55:46,592 INFO L1541 ArrayList]: ghost_update [L1017-L1017] m_locked = 0; [2024-09-22 19:55:46,592 INFO L1541 ArrayList]: ghost_update [L1008-L1008] m_locked = 1; [2024-09-22 19:55:46,592 INFO L1541 ArrayList]: ghost_update [L1048-L1048] m_locked = 0; [2024-09-22 19:55:46,592 INFO L1541 ArrayList]: ghost_update [L1048-L1048] m_locked = 0; [2024-09-22 19:55:46,592 INFO L1541 ArrayList]: ghost_update [L1048-L1048] m_locked = 0; [2024-09-22 19:55:46,592 INFO L1541 ArrayList]: ghost_update [L1048-L1048] m_locked = 0; [2024-09-22 19:55:46,592 INFO L1541 ArrayList]: ghost_update [L1048-L1048] m_locked = 0; [2024-09-22 19:55:46,593 INFO L1541 ArrayList]: ghost_update [L1029-L1029] m_locked = 0; [2024-09-22 19:55:46,593 INFO L1541 ArrayList]: ghost_update [L1029-L1029] m_locked = 0; [2024-09-22 19:55:46,593 INFO L1541 ArrayList]: ghost_update [L1029-L1029] m_locked = 0; [2024-09-22 19:55:46,594 INFO L1541 ArrayList]: ghost_update [L1029-L1029] m_locked = 0; [2024-09-22 19:55:46,594 INFO L1541 ArrayList]: ghost_update [L1029-L1029] m_locked = 0; [2024-09-22 19:55:46,594 INFO L1541 ArrayList]: ghost_update [L1029-L1029] m_locked = 0; [2024-09-22 19:55:46,628 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-22 19:55:46,935 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_longer.i[43296,43309] [2024-09-22 19:55:46,941 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_longer.i[43503,43516] [2024-09-22 19:55:46,943 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_longer.i[43783,43796] [2024-09-22 19:55:46,946 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-22 19:55:46,952 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 [2024-09-22 19:55:47,014 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_longer.i[43296,43309] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-22 19:55:47,016 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_longer.i[43503,43516] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-22 19:55:47,019 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_longer.i[43783,43796] Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-22 19:55:47,463 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-22 19:55:47,497 INFO L204 MainTranslator]: Completed translation [2024-09-22 19:55:47,497 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 07:55:47 WrapperNode [2024-09-22 19:55:47,497 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-22 19:55:47,498 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-22 19:55:47,498 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-22 19:55:47,498 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-22 19:55:47,503 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 07:55:47" (1/1) ... [2024-09-22 19:55:47,613 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 07:55:47" (1/1) ... [2024-09-22 19:55:47,989 INFO L138 Inliner]: procedures = 274, calls = 6501, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 19583 [2024-09-22 19:55:47,990 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-22 19:55:47,991 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-22 19:55:47,991 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-22 19:55:47,991 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-22 19:55:47,998 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 07:55:47" (1/1) ... [2024-09-22 19:55:47,998 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 07:55:47" (1/1) ... [2024-09-22 19:55:48,055 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 07:55:47" (1/1) ... [2024-09-22 19:55:48,056 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 07:55:47" (1/1) ... [2024-09-22 19:55:48,282 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 07:55:47" (1/1) ... [2024-09-22 19:55:48,392 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 07:55:47" (1/1) ... [2024-09-22 19:55:48,454 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 07:55:47" (1/1) ... [2024-09-22 19:55:48,494 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 07:55:47" (1/1) ... [2024-09-22 19:55:48,636 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-22 19:55:48,643 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-22 19:55:48,643 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-22 19:55:48,643 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-22 19:55:48,643 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 07:55:47" (1/1) ... [2024-09-22 19:55:48,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-22 19:55:48,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-22 19:55:48,703 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) [2024-09-22 19:55:48,723 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 [2024-09-22 19:55:48,761 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-09-22 19:55:48,761 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-09-22 19:55:48,761 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-09-22 19:55:48,761 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-09-22 19:55:48,761 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-09-22 19:55:48,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-22 19:55:48,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-22 19:55:48,762 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-09-22 19:55:48,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-22 19:55:48,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-22 19:55:48,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-22 19:55:48,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-22 19:55:48,767 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-09-22 19:55:49,484 INFO L242 CfgBuilder]: Building ICFG [2024-09-22 19:55:49,486 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-22 19:55:57,775 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-22 19:55:57,776 INFO L291 CfgBuilder]: Performing block encoding