./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/stack_longer-2.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/stack_longer-2.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/stack_longer-2.i ./goblint.2024-09-02_08-21-23.files/protection-ghost/stack_longer-2.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-dev-e94c40d-m [2024-09-23 11:30:19,047 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-23 11:30:19,130 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-23 11:30:19,139 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-23 11:30:19,139 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-23 11:30:19,167 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-23 11:30:19,168 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-23 11:30:19,168 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-23 11:30:19,169 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-23 11:30:19,171 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-23 11:30:19,171 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-23 11:30:19,172 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-23 11:30:19,172 INFO L153 SettingsManager]: * Use SBE=true [2024-09-23 11:30:19,174 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-23 11:30:19,175 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-23 11:30:19,175 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-23 11:30:19,176 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-23 11:30:19,176 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-23 11:30:19,179 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-23 11:30:19,180 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-23 11:30:19,180 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-23 11:30:19,180 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-23 11:30:19,181 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-23 11:30:19,181 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-23 11:30:19,181 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-23 11:30:19,181 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-23 11:30:19,182 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-23 11:30:19,182 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-23 11:30:19,182 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-23 11:30:19,182 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-23 11:30:19,183 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-23 11:30:19,183 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-23 11:30:19,183 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-23 11:30:19,183 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-23 11:30:19,183 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-23 11:30:19,184 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-23 11:30:19,184 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-23 11:30:19,186 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-23 11:30:19,186 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-23 11:30:19,186 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-23 11:30:19,186 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-23 11:30:19,187 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-09-23 11:30:19,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-23 11:30:19,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-23 11:30:19,494 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-23 11:30:19,495 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-23 11:30:19,496 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-23 11:30:19,498 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-09-02_08-21-23.files/protection-ghost/stack_longer-2.yml/witness.yml [2024-09-23 11:30:19,604 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-23 11:30:19,606 INFO L274 PluginConnector]: CDTParser initialized [2024-09-23 11:30:19,607 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread/stack_longer-2.i [2024-09-23 11:30:21,070 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-23 11:30:21,339 INFO L384 CDTParser]: Found 1 translation units. [2024-09-23 11:30:21,340 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack_longer-2.i [2024-09-23 11:30:21,363 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/854935cfd/f5d5d719facf48f59b4c692fcffa4f8b/FLAGb07aaab06 [2024-09-23 11:30:21,646 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/854935cfd/f5d5d719facf48f59b4c692fcffa4f8b [2024-09-23 11:30:21,647 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-23 11:30:21,648 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-23 11:30:21,650 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-23 11:30:21,650 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-23 11:30:21,656 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-23 11:30:21,656 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.09 11:30:19" (1/2) ... [2024-09-23 11:30:21,657 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c2f1891 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.09 11:30:21, skipping insertion in model container [2024-09-23 11:30:21,657 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.09 11:30:19" (1/2) ... [2024-09-23 11:30:21,658 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@177e7de1 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.09 11:30:21, skipping insertion in model container [2024-09-23 11:30:21,658 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.09 11:30:21" (2/2) ... [2024-09-23 11:30:21,659 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c2f1891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 11:30:21, skipping insertion in model container [2024-09-23 11:30:21,659 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.09 11:30:21" (2/2) ... [2024-09-23 11:30:21,742 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-23 11:30:21,743 INFO L1541 ArrayList]: Location invariant before [L1022-L1022] ! multithreaded || flag == (_Bool)0 [2024-09-23 11:30:21,743 INFO L1541 ArrayList]: Location invariant before [L1023-L1023] ! multithreaded || flag == (_Bool)0 [2024-09-23 11:30:21,744 INFO L1541 ArrayList]: ghost_variable m_locked = 0 [2024-09-23 11:30:21,744 INFO L1541 ArrayList]: ghost_variable multithreaded = 0 [2024-09-23 11:30:21,744 INFO L1541 ArrayList]: ghost_update [L993-L993] m_locked = 1; [2024-09-23 11:30:21,745 INFO L1541 ArrayList]: ghost_update [L993-L993] m_locked = 1; [2024-09-23 11:30:21,745 INFO L1541 ArrayList]: ghost_update [L993-L993] m_locked = 1; [2024-09-23 11:30:21,745 INFO L1541 ArrayList]: ghost_update [L993-L993] m_locked = 1; [2024-09-23 11:30:21,745 INFO L1541 ArrayList]: ghost_update [L993-L993] m_locked = 1; [2024-09-23 11:30:21,745 INFO L1541 ArrayList]: ghost_update [L993-L993] m_locked = 1; [2024-09-23 11:30:21,745 INFO L1541 ArrayList]: ghost_update [L1021-L1021] multithreaded = 1; [2024-09-23 11:30:21,746 INFO L1541 ArrayList]: ghost_update [L998-L998] m_locked = 0; [2024-09-23 11:30:21,746 INFO L1541 ArrayList]: ghost_update [L998-L998] m_locked = 0; [2024-09-23 11:30:21,746 INFO L1541 ArrayList]: ghost_update [L998-L998] m_locked = 0; [2024-09-23 11:30:21,747 INFO L1541 ArrayList]: ghost_update [L998-L998] m_locked = 0; [2024-09-23 11:30:21,747 INFO L1541 ArrayList]: ghost_update [L998-L998] m_locked = 0; [2024-09-23 11:30:21,747 INFO L1541 ArrayList]: ghost_update [L998-L998] m_locked = 0; [2024-09-23 11:30:21,747 INFO L1541 ArrayList]: ghost_update [L1007-L1007] m_locked = 1; [2024-09-23 11:30:21,747 INFO L1541 ArrayList]: ghost_update [L1007-L1007] m_locked = 1; [2024-09-23 11:30:21,747 INFO L1541 ArrayList]: ghost_update [L1007-L1007] m_locked = 1; [2024-09-23 11:30:21,748 INFO L1541 ArrayList]: ghost_update [L1007-L1007] m_locked = 1; [2024-09-23 11:30:21,748 INFO L1541 ArrayList]: ghost_update [L1007-L1007] m_locked = 1; [2024-09-23 11:30:21,748 INFO L1541 ArrayList]: ghost_update [L1007-L1007] m_locked = 1; [2024-09-23 11:30:21,748 INFO L1541 ArrayList]: ghost_update [L1007-L1007] m_locked = 1; [2024-09-23 11:30:21,748 INFO L1541 ArrayList]: ghost_update [L1007-L1007] m_locked = 1; [2024-09-23 11:30:21,748 INFO L1541 ArrayList]: ghost_update [L1007-L1007] m_locked = 1; [2024-09-23 11:30:21,748 INFO L1541 ArrayList]: ghost_update [L1013-L1013] m_locked = 0; [2024-09-23 11:30:21,749 INFO L1541 ArrayList]: ghost_update [L1013-L1013] m_locked = 0; [2024-09-23 11:30:21,749 INFO L1541 ArrayList]: ghost_update [L1013-L1013] m_locked = 0; [2024-09-23 11:30:21,749 INFO L1541 ArrayList]: ghost_update [L1013-L1013] m_locked = 0; [2024-09-23 11:30:21,749 INFO L1541 ArrayList]: ghost_update [L1013-L1013] m_locked = 0; [2024-09-23 11:30:21,750 INFO L1541 ArrayList]: ghost_update [L1013-L1013] m_locked = 0; [2024-09-23 11:30:21,750 INFO L1541 ArrayList]: ghost_update [L1013-L1013] m_locked = 0; [2024-09-23 11:30:21,750 INFO L1541 ArrayList]: ghost_update [L1013-L1013] m_locked = 0; [2024-09-23 11:30:21,750 INFO L1541 ArrayList]: ghost_update [L1013-L1013] m_locked = 0; [2024-09-23 11:30:21,803 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-23 11:30:22,282 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-23 11:30:22,296 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 Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-23 11:30:22,491 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-23 11:30:22,559 INFO L204 MainTranslator]: Completed translation [2024-09-23 11:30:22,561 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 11:30:22 WrapperNode [2024-09-23 11:30:22,562 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-23 11:30:22,563 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-23 11:30:22,563 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-23 11:30:22,564 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-23 11:30:22,570 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 11:30:22" (1/1) ... [2024-09-23 11:30:22,593 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 11:30:22" (1/1) ... [2024-09-23 11:30:22,630 INFO L138 Inliner]: procedures = 277, calls = 31, calls flagged for inlining = 12, calls inlined = 13, statements flattened = 188 [2024-09-23 11:30:22,633 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-23 11:30:22,634 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-23 11:30:22,634 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-23 11:30:22,634 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-23 11:30:22,642 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 11:30:22" (1/1) ... [2024-09-23 11:30:22,642 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 11:30:22" (1/1) ... [2024-09-23 11:30:22,645 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 11:30:22" (1/1) ... [2024-09-23 11:30:22,646 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 11:30:22" (1/1) ... [2024-09-23 11:30:22,653 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 11:30:22" (1/1) ... [2024-09-23 11:30:22,656 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 11:30:22" (1/1) ... [2024-09-23 11:30:22,658 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 11:30:22" (1/1) ... [2024-09-23 11:30:22,659 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 11:30:22" (1/1) ... [2024-09-23 11:30:22,662 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-23 11:30:22,663 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-23 11:30:22,663 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-23 11:30:22,663 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-23 11:30:22,664 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 11:30:22" (1/1) ... [2024-09-23 11:30:22,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-23 11:30:22,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 11:30:22,697 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) [2024-09-23 11:30:22,700 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 [2024-09-23 11:30:22,736 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-09-23 11:30:22,737 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-09-23 11:30:22,737 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-09-23 11:30:22,737 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-09-23 11:30:22,737 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-09-23 11:30:22,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-23 11:30:22,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-23 11:30:22,737 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-09-23 11:30:22,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-23 11:30:22,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-23 11:30:22,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-23 11:30:22,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-23 11:30:22,739 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-09-23 11:30:22,881 INFO L242 CfgBuilder]: Building ICFG [2024-09-23 11:30:22,884 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-23 11:30:23,151 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-23 11:30:23,151 INFO L291 CfgBuilder]: Performing block encoding [2024-09-23 11:30:23,399 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-23 11:30:23,399 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-23 11:30:23,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.09 11:30:23 BoogieIcfgContainer [2024-09-23 11:30:23,400 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-23 11:30:23,402 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-23 11:30:23,403 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-23 11:30:23,406 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-23 11:30:23,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.09 11:30:19" (1/4) ... [2024-09-23 11:30:23,407 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23d9c0d0 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 23.09 11:30:23, skipping insertion in model container [2024-09-23 11:30:23,407 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.09 11:30:21" (2/4) ... [2024-09-23 11:30:23,407 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23d9c0d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.09 11:30:23, skipping insertion in model container [2024-09-23 11:30:23,408 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 11:30:22" (3/4) ... [2024-09-23 11:30:23,409 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23d9c0d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.09 11:30:23, skipping insertion in model container [2024-09-23 11:30:23,409 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.09 11:30:23" (4/4) ... [2024-09-23 11:30:23,410 INFO L112 eAbstractionObserver]: Analyzing ICFG stack_longer-2.i [2024-09-23 11:30:23,431 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-23 11:30:23,431 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-09-23 11:30:23,432 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-23 11:30:23,491 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-09-23 11:30:23,538 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-23 11:30:23,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-23 11:30:23,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 11:30:23,541 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-23 11:30:23,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-09-23 11:30:23,580 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-23 11:30:23,595 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-23 11:30:23,600 INFO L336 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@a7272a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-23 11:30:23,601 INFO L337 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-09-23 11:30:23,674 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-23 11:30:23,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 11:30:23,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1630153082, now seen corresponding path program 1 times [2024-09-23 11:30:23,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 11:30:23,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061804954] [2024-09-23 11:30:23,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 11:30:23,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 11:30:23,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 11:30:24,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 11:30:24,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 11:30:24,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061804954] [2024-09-23 11:30:24,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061804954] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 11:30:24,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 11:30:24,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-09-23 11:30:24,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955116169] [2024-09-23 11:30:24,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 11:30:24,077 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-23 11:30:24,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 11:30:24,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-23 11:30:24,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-23 11:30:24,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 11:30:24,104 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 11:30:24,105 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 11:30:24,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 11:30:24,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 11:30:24,173 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-09-23 11:30:24,176 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 4 remaining) [2024-09-23 11:30:24,176 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-09-23 11:30:24,176 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-09-23 11:30:24,177 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-23 11:30:24,184 INFO L408 BasicCegarLoop]: Path program histogram: [1] [2024-09-23 11:30:24,188 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-09-23 11:30:24,188 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-23 11:30:24,192 INFO L469 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-09-23 11:30:24,193 INFO L470 ceAbstractionStarter]: WitnessConsidered=2 [2024-09-23 11:30:24,193 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.09 11:30:24 BasicIcfg [2024-09-23 11:30:24,194 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-23 11:30:24,194 INFO L158 Benchmark]: Toolchain (without parser) took 2546.33ms. Allocated memory was 167.8MB in the beginning and 228.6MB in the end (delta: 60.8MB). Free memory was 108.1MB in the beginning and 172.4MB in the end (delta: -64.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-23 11:30:24,194 INFO L158 Benchmark]: Witness Parser took 0.27ms. Allocated memory is still 167.8MB. Free memory is still 128.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-23 11:30:24,195 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 167.8MB. Free memory is still 125.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-23 11:30:24,196 INFO L158 Benchmark]: CACSL2BoogieTranslator took 912.77ms. Allocated memory is still 167.8MB. Free memory was 107.6MB in the beginning and 120.3MB in the end (delta: -12.6MB). Peak memory consumption was 31.3MB. Max. memory is 16.1GB. [2024-09-23 11:30:24,196 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.60ms. Allocated memory is still 167.8MB. Free memory was 120.3MB in the beginning and 117.0MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-23 11:30:24,197 INFO L158 Benchmark]: Boogie Preprocessor took 28.37ms. Allocated memory is still 167.8MB. Free memory was 117.0MB in the beginning and 114.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-23 11:30:24,197 INFO L158 Benchmark]: RCFGBuilder took 737.02ms. Allocated memory is still 167.8MB. Free memory was 114.9MB in the beginning and 64.5MB in the end (delta: 50.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-09-23 11:30:24,197 INFO L158 Benchmark]: TraceAbstraction took 791.36ms. Allocated memory was 167.8MB in the beginning and 228.6MB in the end (delta: 60.8MB). Free memory was 63.6MB in the beginning and 172.4MB in the end (delta: -108.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-23 11:30:24,200 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.27ms. Allocated memory is still 167.8MB. Free memory is still 128.5MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.10ms. Allocated memory is still 167.8MB. Free memory is still 125.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 912.77ms. Allocated memory is still 167.8MB. Free memory was 107.6MB in the beginning and 120.3MB in the end (delta: -12.6MB). Peak memory consumption was 31.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.60ms. Allocated memory is still 167.8MB. Free memory was 120.3MB in the beginning and 117.0MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.37ms. Allocated memory is still 167.8MB. Free memory was 117.0MB in the beginning and 114.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 737.02ms. Allocated memory is still 167.8MB. Free memory was 114.9MB in the beginning and 64.5MB in the end (delta: 50.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * TraceAbstraction took 791.36ms. Allocated memory was 167.8MB in the beginning and 228.6MB in the end (delta: 60.8MB). Free memory was 63.6MB in the beginning and 172.4MB in the end (delta: -108.8MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 321, independent: 302, independent conditional: 66, independent unconditional: 236, dependent: 19, dependent conditional: 17, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 304, independent: 302, independent conditional: 66, independent unconditional: 236, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 304, independent: 302, independent conditional: 66, independent unconditional: 236, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 304, independent: 302, independent conditional: 66, independent unconditional: 236, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 304, independent: 302, independent conditional: 0, independent unconditional: 302, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 304, independent: 302, independent conditional: 0, independent unconditional: 302, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 238, independent: 236, independent conditional: 0, independent unconditional: 236, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 238, independent: 235, independent conditional: 0, independent unconditional: 235, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 3, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 3, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 41, independent: 30, independent conditional: 0, independent unconditional: 30, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 304, independent: 66, independent conditional: 0, independent unconditional: 66, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 238, unknown conditional: 0, unknown unconditional: 238] , Statistics on independence cache: Total cache size (in pairs): 238, Positive cache size: 236, Positive conditional cache size: 0, Positive unconditional cache size: 236, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 66, Maximal queried relation: 0, Independence queries for same thread: 17, Persistent sets #1 benchmarks: Persistent set computation time: 0.1s, Number of persistent set computation: 19, Number of trivial persistent sets: 9, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 238, independent: 236, independent conditional: 0, independent unconditional: 236, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 321, independent: 302, independent conditional: 66, independent unconditional: 236, dependent: 19, dependent conditional: 17, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 304, independent: 302, independent conditional: 66, independent unconditional: 236, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 304, independent: 302, independent conditional: 66, independent unconditional: 236, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 304, independent: 302, independent conditional: 66, independent unconditional: 236, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 304, independent: 302, independent conditional: 0, independent unconditional: 302, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 304, independent: 302, independent conditional: 0, independent unconditional: 302, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 238, independent: 236, independent conditional: 0, independent unconditional: 236, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 238, independent: 235, independent conditional: 0, independent unconditional: 235, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 3, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 3, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 41, independent: 30, independent conditional: 0, independent unconditional: 30, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 304, independent: 66, independent conditional: 0, independent unconditional: 66, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 238, unknown conditional: 0, unknown unconditional: 238] , Statistics on independence cache: Total cache size (in pairs): 238, Positive cache size: 236, Positive conditional cache size: 0, Positive unconditional cache size: 236, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 66, Maximal queried relation: 0, Independence queries for same thread: 17 - PositiveResult [Line: 1022]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1023]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 45 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-09-23 11:30:24,236 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2024-09-23 11:30:24,433 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE