./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/queue_ok_longest.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-05-07_14-17-48.files/mutex-meet/queue_ok_longest.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b44c8288 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread/queue_ok_longest.i ./goblint.2024-05-07_14-17-48.files/mutex-meet/queue_ok_longest.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_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-wip.fs.witness-ghost-b44c828-m [2024-05-12 10:32:29,472 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-12 10:32:29,510 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-05-12 10:32:29,517 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-12 10:32:29,517 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-12 10:32:29,547 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-12 10:32:29,548 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-12 10:32:29,548 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-12 10:32:29,549 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-05-12 10:32:29,552 INFO L153 SettingsManager]: * Use memory slicer=true [2024-05-12 10:32:29,552 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-12 10:32:29,552 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-12 10:32:29,553 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-12 10:32:29,554 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-12 10:32:29,554 INFO L153 SettingsManager]: * Use SBE=true [2024-05-12 10:32:29,555 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-12 10:32:29,555 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-12 10:32:29,555 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-12 10:32:29,555 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-12 10:32:29,555 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-12 10:32:29,556 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-12 10:32:29,556 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-12 10:32:29,556 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-12 10:32:29,556 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-12 10:32:29,557 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-05-12 10:32:29,557 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-12 10:32:29,557 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-12 10:32:29,557 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-12 10:32:29,558 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-12 10:32:29,558 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-12 10:32:29,559 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-05-12 10:32:29,559 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-12 10:32:29,559 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-05-12 10:32:29,559 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-12 10:32:29,559 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-12 10:32:29,559 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-05-12 10:32:29,560 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-12 10:32:29,560 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-12 10:32:29,560 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-12 10:32:29,560 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-05-12 10:32:29,560 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-12 10:32:29,561 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-05-12 10:32:29,561 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-05-12 10:32:29,561 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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/UAutomizer-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-05-12 10:32:29,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-12 10:32:29,769 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-12 10:32:29,771 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-12 10:32:29,772 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-12 10:32:29,772 INFO L274 PluginConnector]: CDTParser initialized [2024-05-12 10:32:29,773 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/queue_ok_longest.i [2024-05-12 10:32:31,037 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-12 10:32:31,239 INFO L384 CDTParser]: Found 1 translation units. [2024-05-12 10:32:31,240 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_ok_longest.i [2024-05-12 10:32:31,260 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/440812bec/2d766785665844fd8318be9ec207f984/FLAG97b04f84b [2024-05-12 10:32:31,280 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/440812bec/2d766785665844fd8318be9ec207f984 [2024-05-12 10:32:31,282 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-05-12 10:32:31,283 INFO L274 PluginConnector]: Witness Parser initialized [2024-05-12 10:32:31,283 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-07_14-17-48.files/mutex-meet/queue_ok_longest.yml/witness.yml [2024-05-12 10:32:31,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-12 10:32:31,366 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-12 10:32:31,367 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-12 10:32:31,367 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-12 10:32:31,371 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-12 10:32:31,371 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.05 10:32:31" (1/2) ... [2024-05-12 10:32:31,372 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53897941 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 10:32:31, skipping insertion in model container [2024-05-12 10:32:31,372 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.05 10:32:31" (1/2) ... [2024-05-12 10:32:31,374 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@333782e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 10:32:31, skipping insertion in model container [2024-05-12 10:32:31,374 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.05 10:32:31" (2/2) ... [2024-05-12 10:32:31,376 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53897941 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 10:32:31, skipping insertion in model container [2024-05-12 10:32:31,376 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.05 10:32:31" (2/2) ... [2024-05-12 10:32:31,376 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-05-12 10:32:31,418 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-05-12 10:32:31,419 INFO L97 edCorrectnessWitness]: Location invariant before [L1054-L1054] ((! multithreaded || (m_locked || ((((-1LL + (long long )dequeue_flag) + (long long )enqueue_flag >= 0LL && (1LL - (long long )dequeue_flag) + (long long )enqueue_flag >= 0LL) && (1LL + (long long )dequeue_flag) - (long long )enqueue_flag >= 0LL) && (1LL - (long long )dequeue_flag) - (long long )enqueue_flag >= 0LL))) && (! multithreaded || 0 <= queue.head)) && (! multithreaded || (m_locked || (-2147483645 <= queue.tail && 0 <= queue.head))) [2024-05-12 10:32:31,419 INFO L97 edCorrectnessWitness]: Location invariant before [L1053-L1053] ((! multithreaded || (m_locked || ((((-1LL + (long long )dequeue_flag) + (long long )enqueue_flag >= 0LL && (1LL - (long long )dequeue_flag) + (long long )enqueue_flag >= 0LL) && (1LL + (long long )dequeue_flag) - (long long )enqueue_flag >= 0LL) && (1LL - (long long )dequeue_flag) - (long long )enqueue_flag >= 0LL))) && (! multithreaded || 0 <= queue.head)) && (! multithreaded || (m_locked || (-2147483645 <= queue.tail && 0 <= queue.head))) [2024-05-12 10:32:31,419 INFO L103 edCorrectnessWitness]: ghost_variable m_locked = 0 [2024-05-12 10:32:31,420 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-05-12 10:32:31,420 INFO L106 edCorrectnessWitness]: ghost_update [L1052-L1052] multithreaded = 1; [2024-05-12 10:32:31,420 INFO L106 edCorrectnessWitness]: ghost_update [L1039-L1039] m_locked = 0; [2024-05-12 10:32:31,421 INFO L106 edCorrectnessWitness]: ghost_update [L1008-L1008] m_locked = 1; [2024-05-12 10:32:31,421 INFO L106 edCorrectnessWitness]: ghost_update [L1026-L1026] m_locked = 1; [2024-05-12 10:32:31,421 INFO L106 edCorrectnessWitness]: ghost_update [L1020-L1020] m_locked = 0; [2024-05-12 10:32:31,461 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-12 10:32:31,787 WARN L246 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_ok_longest.i[43280,43293] [2024-05-12 10:32:31,791 WARN L246 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_ok_longest.i[43553,43566] [2024-05-12 10:32:31,802 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-05-12 10:32:31,809 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-05-12 10:32:31,885 WARN L246 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_ok_longest.i[43280,43293] Start Parsing Local [2024-05-12 10:32:31,888 WARN L246 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_ok_longest.i[43553,43566] Start Parsing Local Start Parsing Local Start Parsing Local [2024-05-12 10:32:32,473 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-05-12 10:32:32,528 INFO L206 MainTranslator]: Completed translation [2024-05-12 10:32:32,529 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 10:32:32 WrapperNode [2024-05-12 10:32:32,529 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-12 10:32:32,530 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-12 10:32:32,530 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-12 10:32:32,530 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-12 10:32:32,536 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 12.05 10:32:32" (1/1) ... [2024-05-12 10:32:32,663 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 12.05 10:32:32" (1/1) ... [2024-05-12 10:32:32,894 INFO L138 Inliner]: procedures = 275, calls = 4877, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 19484 [2024-05-12 10:32:32,894 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-12 10:32:32,895 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-12 10:32:32,895 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-12 10:32:32,895 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-12 10:32:32,904 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 10:32:32" (1/1) ... [2024-05-12 10:32:32,905 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 10:32:32" (1/1) ... [2024-05-12 10:32:32,957 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 10:32:32" (1/1) ... [2024-05-12 10:32:33,043 INFO L175 MemorySlicer]: Split 4856 memory accesses to 6 slices as follows [2, 5, 3, 2, 4842, 2]. 100 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0, 0, 0, 0]. The 15 writes are split as follows [0, 0, 2, 1, 11, 1]. [2024-05-12 10:32:33,044 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 10:32:32" (1/1) ... [2024-05-12 10:32:33,044 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 10:32:32" (1/1) ... [2024-05-12 10:32:33,384 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 10:32:32" (1/1) ... [2024-05-12 10:32:33,461 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 10:32:32" (1/1) ... [2024-05-12 10:32:33,478 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 10:32:32" (1/1) ... [2024-05-12 10:32:33,494 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 10:32:32" (1/1) ... [2024-05-12 10:32:33,542 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-12 10:32:33,543 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-12 10:32:33,544 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-12 10:32:33,544 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-12 10:32:33,544 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 10:32:32" (1/1) ... [2024-05-12 10:32:33,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-05-12 10:32:33,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-05-12 10:32:33,568 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-05-12 10:32:33,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-05-12 10:32:33,622 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-05-12 10:32:33,623 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-05-12 10:32:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-05-12 10:32:33,623 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-05-12 10:32:33,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-12 10:32:33,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-12 10:32:33,625 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-05-12 10:32:33,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-05-12 10:32:33,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-05-12 10:32:33,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-05-12 10:32:33,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-05-12 10:32:33,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-05-12 10:32:33,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-05-12 10:32:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-05-12 10:32:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-05-12 10:32:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-05-12 10:32:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-05-12 10:32:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-05-12 10:32:33,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-05-12 10:32:33,628 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-05-12 10:32:33,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-12 10:32:33,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-05-12 10:32:33,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-05-12 10:32:33,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-05-12 10:32:33,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-05-12 10:32:33,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-05-12 10:32:33,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-05-12 10:32:33,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-12 10:32:33,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-12 10:32:33,637 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-05-12 10:32:34,374 INFO L244 CfgBuilder]: Building ICFG [2024-05-12 10:32:34,376 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-12 10:32:42,784 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-05-12 10:32:42,784 INFO L293 CfgBuilder]: Performing block encoding