./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.2024-08-20_10-08-36.files/mutex-meet-ghost/queue_longest.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version da67795f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread/queue_longest.i ./goblint.2024-08-20_10-08-36.files/mutex-meet-ghost/queue_longest.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.goblint-eval-da67795-m [2024-08-26 16:43:38,446 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-26 16:43:38,514 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-08-26 16:43:38,523 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-26 16:43:38,524 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-26 16:43:38,556 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-26 16:43:38,557 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-26 16:43:38,557 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-26 16:43:38,558 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-26 16:43:38,562 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-26 16:43:38,563 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-26 16:43:38,563 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-26 16:43:38,563 INFO L153 SettingsManager]: * Use SBE=true [2024-08-26 16:43:38,564 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-26 16:43:38,564 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-26 16:43:38,564 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-26 16:43:38,564 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-26 16:43:38,564 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-26 16:43:38,565 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-26 16:43:38,565 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-26 16:43:38,567 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-26 16:43:38,567 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-26 16:43:38,567 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-26 16:43:38,567 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-26 16:43:38,568 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-26 16:43:38,568 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-26 16:43:38,568 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-26 16:43:38,569 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-26 16:43:38,570 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-26 16:43:38,570 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-26 16:43:38,570 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-26 16:43:38,570 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-26 16:43:38,571 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-26 16:43:38,571 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-26 16:43:38,571 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-26 16:43:38,572 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-08-26 16:43:38,572 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-26 16:43:38,572 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-26 16:43:38,573 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-08-26 16:43:38,573 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-26 16:43:38,573 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-08-26 16:43:38,574 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-08-26 16:43:38,574 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-08-26 16:43:38,899 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-26 16:43:38,925 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-26 16:43:38,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-26 16:43:38,930 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-26 16:43:38,931 INFO L274 PluginConnector]: CDTParser initialized [2024-08-26 16:43:38,932 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread/queue_longest.i [2024-08-26 16:43:40,469 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-26 16:43:40,790 INFO L384 CDTParser]: Found 1 translation units. [2024-08-26 16:43:40,790 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_longest.i [2024-08-26 16:43:40,815 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/d9b7074d5/dcb3c5558b7d4b22b9e648eda4469fe5/FLAG6fa5bb7af [2024-08-26 16:43:40,831 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/d9b7074d5/dcb3c5558b7d4b22b9e648eda4469fe5 [2024-08-26 16:43:40,835 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-26 16:43:40,836 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-26 16:43:40,838 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-08-20_10-08-36.files/mutex-meet-ghost/queue_longest.yml/witness.yml [2024-08-26 16:43:40,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-26 16:43:40,945 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-08-26 16:43:40,946 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-26 16:43:40,946 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-26 16:43:40,951 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-26 16:43:40,952 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 04:43:40" (1/2) ... [2024-08-26 16:43:40,953 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39d81bdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:43:40, skipping insertion in model container [2024-08-26 16:43:40,953 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 04:43:40" (1/2) ... [2024-08-26 16:43:40,955 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@dc495b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:43:40, skipping insertion in model container [2024-08-26 16:43:40,955 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 26.08 04:43:40" (2/2) ... [2024-08-26 16:43:40,956 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39d81bdf and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.08 04:43:40, skipping insertion in model container [2024-08-26 16:43:40,956 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 26.08 04:43:40" (2/2) ... [2024-08-26 16:43:40,956 INFO L85 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-08-26 16:43:41,039 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-08-26 16:43:41,041 INFO L1541 ArrayList]: Location invariant before [L1063-L1063] ((! multithreaded || (m_locked || (((0 <= queue.head && 0 <= queue.tail) && queue.head <= 800) && queue.tail <= 800))) && (! multithreaded || (((0 <= queue.head && 0 <= queue.tail) && queue.head <= 800) && queue.tail <= 800))) && (! multithreaded || (m_locked || ((-1LL + (long long )dequeue_flag) + (long long )enqueue_flag >= 0LL && (1LL - (long long )dequeue_flag) - (long long )enqueue_flag >= 0LL))) [2024-08-26 16:43:41,041 INFO L1541 ArrayList]: Location invariant before [L1064-L1064] ((! multithreaded || (m_locked || (((0 <= queue.head && 0 <= queue.tail) && queue.head <= 800) && queue.tail <= 800))) && (! multithreaded || (((0 <= queue.head && 0 <= queue.tail) && queue.head <= 800) && queue.tail <= 800))) && (! multithreaded || (m_locked || ((-1LL + (long long )dequeue_flag) + (long long )enqueue_flag >= 0LL && (1LL - (long long )dequeue_flag) - (long long )enqueue_flag >= 0LL))) [2024-08-26 16:43:41,041 INFO L1541 ArrayList]: ghost_variable multithreaded = 0 [2024-08-26 16:43:41,042 INFO L1541 ArrayList]: ghost_variable m_locked = 0 [2024-08-26 16:43:41,042 INFO L1541 ArrayList]: ghost_update [L1029-L1029] m_locked = 0; [2024-08-26 16:43:41,042 INFO L1541 ArrayList]: ghost_update [L1029-L1029] m_locked = 0; [2024-08-26 16:43:41,043 INFO L1541 ArrayList]: ghost_update [L1029-L1029] m_locked = 0; [2024-08-26 16:43:41,043 INFO L1541 ArrayList]: ghost_update [L1029-L1029] m_locked = 0; [2024-08-26 16:43:41,043 INFO L1541 ArrayList]: ghost_update [L1029-L1029] m_locked = 0; [2024-08-26 16:43:41,043 INFO L1541 ArrayList]: ghost_update [L1029-L1029] m_locked = 0; [2024-08-26 16:43:41,043 INFO L1541 ArrayList]: ghost_update [L1039-L1039] m_locked = 1; [2024-08-26 16:43:41,043 INFO L1541 ArrayList]: ghost_update [L1039-L1039] m_locked = 1; [2024-08-26 16:43:41,043 INFO L1541 ArrayList]: ghost_update [L1039-L1039] m_locked = 1; [2024-08-26 16:43:41,044 INFO L1541 ArrayList]: ghost_update [L1039-L1039] m_locked = 1; [2024-08-26 16:43:41,044 INFO L1541 ArrayList]: ghost_update [L1039-L1039] m_locked = 1; [2024-08-26 16:43:41,044 INFO L1541 ArrayList]: ghost_update [L1048-L1048] m_locked = 0; [2024-08-26 16:43:41,044 INFO L1541 ArrayList]: ghost_update [L1048-L1048] m_locked = 0; [2024-08-26 16:43:41,044 INFO L1541 ArrayList]: ghost_update [L1048-L1048] m_locked = 0; [2024-08-26 16:43:41,044 INFO L1541 ArrayList]: ghost_update [L1048-L1048] m_locked = 0; [2024-08-26 16:43:41,044 INFO L1541 ArrayList]: ghost_update [L1048-L1048] m_locked = 0; [2024-08-26 16:43:41,044 INFO L1541 ArrayList]: ghost_update [L1017-L1017] m_locked = 0; [2024-08-26 16:43:41,045 INFO L1541 ArrayList]: ghost_update [L1008-L1008] m_locked = 1; [2024-08-26 16:43:41,045 INFO L1541 ArrayList]: ghost_update [L1062-L1062] multithreaded = 1; [2024-08-26 16:43:41,045 INFO L1541 ArrayList]: ghost_update [L1020-L1020] m_locked = 1; [2024-08-26 16:43:41,045 INFO L1541 ArrayList]: ghost_update [L1020-L1020] m_locked = 1; [2024-08-26 16:43:41,045 INFO L1541 ArrayList]: ghost_update [L1020-L1020] m_locked = 1; [2024-08-26 16:43:41,046 INFO L1541 ArrayList]: ghost_update [L1020-L1020] m_locked = 1; [2024-08-26 16:43:41,046 INFO L1541 ArrayList]: ghost_update [L1020-L1020] m_locked = 1; [2024-08-26 16:43:41,046 INFO L1541 ArrayList]: ghost_update [L1020-L1020] m_locked = 1; [2024-08-26 16:43:41,093 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-08-26 16:43:41,574 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-26 16:43:41,585 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-08-26 16:43:43,171 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-26 16:43:43,240 INFO L206 MainTranslator]: Completed translation [2024-08-26 16:43:43,241 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.08 04:43:43 WrapperNode [2024-08-26 16:43:43,242 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-26 16:43:43,243 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-08-26 16:43:43,243 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-08-26 16:43:43,243 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-08-26 16:43:43,249 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 26.08 04:43:43" (1/1) ... [2024-08-26 16:43:43,569 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 26.08 04:43:43" (1/1) ... [2024-08-26 16:43:44,559 INFO L138 Inliner]: procedures = 274, calls = 12904, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 38789 [2024-08-26 16:43:44,560 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-08-26 16:43:44,561 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-26 16:43:44,561 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-26 16:43:44,561 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-26 16:43:44,571 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.08 04:43:43" (1/1) ... [2024-08-26 16:43:44,571 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.08 04:43:43" (1/1) ... [2024-08-26 16:43:44,911 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.08 04:43:43" (1/1) ... [2024-08-26 16:43:44,912 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.08 04:43:43" (1/1) ... [2024-08-26 16:43:45,765 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.08 04:43:43" (1/1) ... [2024-08-26 16:43:45,952 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.08 04:43:43" (1/1) ... [2024-08-26 16:43:46,091 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.08 04:43:43" (1/1) ... [2024-08-26 16:43:46,156 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.08 04:43:43" (1/1) ... [2024-08-26 16:43:46,428 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-26 16:43:46,429 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-08-26 16:43:46,429 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-08-26 16:43:46,429 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-08-26 16:43:46,430 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.08 04:43:43" (1/1) ... [2024-08-26 16:43:46,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-26 16:43:46,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-26 16:43:46,462 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-08-26 16:43:46,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-08-26 16:43:46,516 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-08-26 16:43:46,517 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-08-26 16:43:46,517 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-08-26 16:43:46,517 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-08-26 16:43:46,517 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-08-26 16:43:46,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-08-26 16:43:46,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-08-26 16:43:46,517 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-08-26 16:43:46,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-26 16:43:46,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-08-26 16:43:46,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-26 16:43:46,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-26 16:43:46,527 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-08-26 16:43:48,117 INFO L242 CfgBuilder]: Building ICFG [2024-08-26 16:43:48,120 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-26 16:44:07,438 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-08-26 16:44:07,438 INFO L291 CfgBuilder]: Performing block encoding