./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.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/mutex-meet-ghost/circular_buffer_bad.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a4c57e3 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i ./goblint.2024-09-02_08-21-23.files/mutex-meet-ghost/circular_buffer_bad.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.witness-ghost-4a4c57e-m [2024-09-08 00:02:44,500 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-08 00:02:44,568 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-08 00:02:44,572 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-08 00:02:44,572 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-08 00:02:44,602 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-08 00:02:44,602 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-08 00:02:44,603 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-08 00:02:44,603 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-08 00:02:44,604 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-08 00:02:44,604 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-08 00:02:44,605 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-08 00:02:44,605 INFO L153 SettingsManager]: * Use SBE=true [2024-09-08 00:02:44,606 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-08 00:02:44,606 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-08 00:02:44,606 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-08 00:02:44,607 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-08 00:02:44,607 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-08 00:02:44,607 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-08 00:02:44,608 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-08 00:02:44,608 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-08 00:02:44,609 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-08 00:02:44,609 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-08 00:02:44,609 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-08 00:02:44,609 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-08 00:02:44,610 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-08 00:02:44,610 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-08 00:02:44,610 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-08 00:02:44,611 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-08 00:02:44,611 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-08 00:02:44,611 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 00:02:44,612 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-08 00:02:44,612 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-08 00:02:44,612 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-08 00:02:44,613 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-08 00:02:44,613 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-08 00:02:44,613 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-08 00:02:44,613 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-08 00:02:44,614 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-08 00:02:44,614 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-08 00:02:44,614 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-08 00:02:44,617 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-09-08 00:02:44,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-08 00:02:44,906 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-08 00:02:44,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-08 00:02:44,911 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-08 00:02:44,912 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-08 00:02:44,913 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-09-02_08-21-23.files/mutex-meet-ghost/circular_buffer_bad.yml/witness.yml [2024-09-08 00:02:45,014 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-08 00:02:45,018 INFO L274 PluginConnector]: CDTParser initialized [2024-09-08 00:02:45,019 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i [2024-09-08 00:02:46,413 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-08 00:02:46,678 INFO L384 CDTParser]: Found 1 translation units. [2024-09-08 00:02:46,679 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i [2024-09-08 00:02:46,711 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/9d419803c/c434928ea8da47129d7adedefd307878/FLAG3b75d1840 [2024-09-08 00:02:46,731 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/9d419803c/c434928ea8da47129d7adedefd307878 [2024-09-08 00:02:46,734 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-08 00:02:46,736 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-08 00:02:46,737 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-08 00:02:46,737 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-08 00:02:46,743 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-08 00:02:46,744 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 12:02:45" (1/2) ... [2024-09-08 00:02:46,745 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e3210b4 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 12:02:46, skipping insertion in model container [2024-09-08 00:02:46,745 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 12:02:45" (1/2) ... [2024-09-08 00:02:46,747 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@476b6ca and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 12:02:46, skipping insertion in model container [2024-09-08 00:02:46,747 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 12:02:46" (2/2) ... [2024-09-08 00:02:46,748 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e3210b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:02:46, skipping insertion in model container [2024-09-08 00:02:46,748 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 12:02:46" (2/2) ... [2024-09-08 00:02:46,822 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-08 00:02:46,823 INFO L1541 ArrayList]: Location invariant before [L762-L762] ! multithreaded || (m_locked || ((-1LL + (long long )receive) + (long long )send >= 0LL && (1LL - (long long )receive) - (long long )send >= 0LL)) [2024-09-08 00:02:46,823 INFO L1541 ArrayList]: Location invariant before [L763-L763] ! multithreaded || (m_locked || ((-1LL + (long long )receive) + (long long )send >= 0LL && (1LL - (long long )receive) - (long long )send >= 0LL)) [2024-09-08 00:02:46,823 INFO L1541 ArrayList]: ghost_variable multithreaded = 0 [2024-09-08 00:02:46,823 INFO L1541 ArrayList]: ghost_variable m_locked = 0 [2024-09-08 00:02:46,824 INFO L1541 ArrayList]: ghost_update [L733-L733] m_locked = 0; [2024-09-08 00:02:46,824 INFO L1541 ArrayList]: ghost_update [L733-L733] m_locked = 0; [2024-09-08 00:02:46,824 INFO L1541 ArrayList]: ghost_update [L733-L733] m_locked = 0; [2024-09-08 00:02:46,824 INFO L1541 ArrayList]: ghost_update [L733-L733] m_locked = 0; [2024-09-08 00:02:46,824 INFO L1541 ArrayList]: ghost_update [L733-L733] m_locked = 0; [2024-09-08 00:02:46,825 INFO L1541 ArrayList]: ghost_update [L733-L733] m_locked = 0; [2024-09-08 00:02:46,825 INFO L1541 ArrayList]: ghost_update [L733-L733] m_locked = 0; [2024-09-08 00:02:46,825 INFO L1541 ArrayList]: ghost_update [L726-L726] m_locked = 1; [2024-09-08 00:02:46,825 INFO L1541 ArrayList]: ghost_update [L726-L726] m_locked = 1; [2024-09-08 00:02:46,825 INFO L1541 ArrayList]: ghost_update [L726-L726] m_locked = 1; [2024-09-08 00:02:46,825 INFO L1541 ArrayList]: ghost_update [L726-L726] m_locked = 1; [2024-09-08 00:02:46,825 INFO L1541 ArrayList]: ghost_update [L726-L726] m_locked = 1; [2024-09-08 00:02:46,826 INFO L1541 ArrayList]: ghost_update [L726-L726] m_locked = 1; [2024-09-08 00:02:46,826 INFO L1541 ArrayList]: ghost_update [L726-L726] m_locked = 1; [2024-09-08 00:02:46,826 INFO L1541 ArrayList]: ghost_update [L742-L742] m_locked = 1; [2024-09-08 00:02:46,826 INFO L1541 ArrayList]: ghost_update [L742-L742] m_locked = 1; [2024-09-08 00:02:46,826 INFO L1541 ArrayList]: ghost_update [L742-L742] m_locked = 1; [2024-09-08 00:02:46,826 INFO L1541 ArrayList]: ghost_update [L742-L742] m_locked = 1; [2024-09-08 00:02:46,827 INFO L1541 ArrayList]: ghost_update [L742-L742] m_locked = 1; [2024-09-08 00:02:46,827 INFO L1541 ArrayList]: ghost_update [L742-L742] m_locked = 1; [2024-09-08 00:02:46,827 INFO L1541 ArrayList]: ghost_update [L750-L750] m_locked = 0; [2024-09-08 00:02:46,827 INFO L1541 ArrayList]: ghost_update [L750-L750] m_locked = 0; [2024-09-08 00:02:46,828 INFO L1541 ArrayList]: ghost_update [L750-L750] m_locked = 0; [2024-09-08 00:02:46,828 INFO L1541 ArrayList]: ghost_update [L750-L750] m_locked = 0; [2024-09-08 00:02:46,828 INFO L1541 ArrayList]: ghost_update [L750-L750] m_locked = 0; [2024-09-08 00:02:46,828 INFO L1541 ArrayList]: ghost_update [L750-L750] m_locked = 0; [2024-09-08 00:02:46,828 INFO L1541 ArrayList]: ghost_update [L761-L761] multithreaded = 1; [2024-09-08 00:02:46,872 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-08 00:02:47,219 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 00:02:47,230 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 [2024-09-08 00:02:47,308 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 00:02:47,354 INFO L204 MainTranslator]: Completed translation [2024-09-08 00:02:47,355 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:02:47 WrapperNode [2024-09-08 00:02:47,355 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-08 00:02:47,356 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-08 00:02:47,356 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-08 00:02:47,357 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-08 00:02:47,363 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:02:47" (1/1) ... [2024-09-08 00:02:47,375 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:02:47" (1/1) ... [2024-09-08 00:02:47,407 INFO L138 Inliner]: procedures = 168, calls = 30, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 167 [2024-09-08 00:02:47,408 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-08 00:02:47,408 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-08 00:02:47,408 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-08 00:02:47,408 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-08 00:02:47,421 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:02:47" (1/1) ... [2024-09-08 00:02:47,421 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:02:47" (1/1) ... [2024-09-08 00:02:47,425 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:02:47" (1/1) ... [2024-09-08 00:02:47,425 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:02:47" (1/1) ... [2024-09-08 00:02:47,438 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:02:47" (1/1) ... [2024-09-08 00:02:47,444 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:02:47" (1/1) ... [2024-09-08 00:02:47,447 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:02:47" (1/1) ... [2024-09-08 00:02:47,449 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:02:47" (1/1) ... [2024-09-08 00:02:47,452 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-08 00:02:47,453 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-08 00:02:47,453 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-08 00:02:47,453 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-08 00:02:47,454 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:02:47" (1/1) ... [2024-09-08 00:02:47,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 00:02:47,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 00:02:47,490 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-09-08 00:02:47,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-09-08 00:02:47,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-08 00:02:47,546 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-09-08 00:02:47,546 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-09-08 00:02:47,546 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-09-08 00:02:47,547 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-09-08 00:02:47,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-08 00:02:47,547 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-09-08 00:02:47,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-08 00:02:47,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-09-08 00:02:47,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-08 00:02:47,547 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-09-08 00:02:47,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-08 00:02:47,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-08 00:02:47,550 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-09-08 00:02:47,693 INFO L242 CfgBuilder]: Building ICFG [2024-09-08 00:02:47,694 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-08 00:02:47,974 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-08 00:02:47,974 INFO L291 CfgBuilder]: Performing block encoding [2024-09-08 00:02:48,286 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-08 00:02:48,286 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-08 00:02:48,287 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 12:02:48 BoogieIcfgContainer [2024-09-08 00:02:48,287 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-08 00:02:48,290 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-08 00:02:48,291 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-08 00:02:48,294 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-08 00:02:48,294 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 12:02:45" (1/4) ... [2024-09-08 00:02:48,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e7a7c27 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 08.09 12:02:48, skipping insertion in model container [2024-09-08 00:02:48,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 12:02:46" (2/4) ... [2024-09-08 00:02:48,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e7a7c27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 12:02:48, skipping insertion in model container [2024-09-08 00:02:48,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:02:47" (3/4) ... [2024-09-08 00:02:48,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e7a7c27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 12:02:48, skipping insertion in model container [2024-09-08 00:02:48,296 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 12:02:48" (4/4) ... [2024-09-08 00:02:48,297 INFO L112 eAbstractionObserver]: Analyzing ICFG circular_buffer_bad.i [2024-09-08 00:02:48,310 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-08 00:02:48,310 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-09-08 00:02:48,310 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-08 00:02:48,362 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-09-08 00:02:48,406 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 00:02:48,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 00:02:48,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 00:02:48,408 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) [2024-09-08 00:02:48,410 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 [2024-09-08 00:02:48,451 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 00:02:48,465 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-08 00:02:48,472 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;@7535daab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 00:02:48,473 INFO L337 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-09-08 00:02:48,567 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)] === [2024-09-08 00:02:48,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 00:02:48,572 INFO L85 PathProgramCache]: Analyzing trace with hash 369979755, now seen corresponding path program 1 times [2024-09-08 00:02:48,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 00:02:48,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098742239] [2024-09-08 00:02:48,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 00:02:48,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 00:02:48,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 00:02:49,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 00:02:49,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 00:02:49,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098742239] [2024-09-08 00:02:49,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098742239] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 00:02:49,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 00:02:49,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-09-08 00:02:49,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299906020] [2024-09-08 00:02:49,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 00:02:49,093 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 00:02:49,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 00:02:49,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 00:02:49,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 00:02:49,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 00:02:49,122 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 00:02:49,123 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) [2024-09-08 00:02:49,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 00:02:49,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 00:02:49,333 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-08 00:02:49,334 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 00:02:49,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 00:02:49,334 INFO L85 PathProgramCache]: Analyzing trace with hash 373100650, now seen corresponding path program 1 times [2024-09-08 00:02:49,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 00:02:49,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666708656] [2024-09-08 00:02:49,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 00:02:49,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 00:02:49,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 00:02:49,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 00:02:49,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 00:02:49,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666708656] [2024-09-08 00:02:49,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666708656] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 00:02:49,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 00:02:49,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-08 00:02:49,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392505544] [2024-09-08 00:02:49,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 00:02:49,777 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-08 00:02:49,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 00:02:49,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-08 00:02:49,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-08 00:02:49,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 00:02:49,778 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 00:02:49,782 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2024-09-08 00:02:49,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 00:02:49,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 00:02:50,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 00:02:50,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 00:02:50,060 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-08 00:02:50,060 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 00:02:50,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 00:02:50,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1834750490, now seen corresponding path program 1 times [2024-09-08 00:02:50,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 00:02:50,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733939033] [2024-09-08 00:02:50,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 00:02:50,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 00:02:50,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 00:02:50,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 00:02:50,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 00:02:50,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733939033] [2024-09-08 00:02:50,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733939033] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 00:02:50,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 00:02:50,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-08 00:02:50,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295244264] [2024-09-08 00:02:50,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 00:02:50,545 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-08 00:02:50,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 00:02:50,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-08 00:02:50,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-09-08 00:02:50,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 00:02:50,550 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 00:02:50,550 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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) [2024-09-08 00:02:50,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 00:02:50,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 00:02:50,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 00:02:51,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 00:02:51,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 00:02:51,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 00:02:51,257 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-08 00:02:51,257 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 00:02:51,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 00:02:51,259 INFO L85 PathProgramCache]: Analyzing trace with hash -2023902424, now seen corresponding path program 1 times [2024-09-08 00:02:51,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 00:02:51,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50365855] [2024-09-08 00:02:51,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 00:02:51,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 00:02:51,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 00:02:51,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 00:02:51,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 00:02:51,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50365855] [2024-09-08 00:02:51,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50365855] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 00:02:51,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 00:02:51,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-08 00:02:51,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913181795] [2024-09-08 00:02:51,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 00:02:51,504 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-08 00:02:51,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 00:02:51,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-08 00:02:51,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-08 00:02:51,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 00:02:51,506 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 00:02:51,506 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-09-08 00:02:51,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 00:02:51,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 00:02:51,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-08 00:02:51,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 00:02:51,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 00:02:51,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 00:02:51,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 00:02:51,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 00:02:51,774 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-09-08 00:02:51,774 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 4 remaining) [2024-09-08 00:02:51,774 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-09-08 00:02:51,775 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-09-08 00:02:51,775 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-08 00:02:51,781 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-09-08 00:02:51,787 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-09-08 00:02:51,787 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-08 00:02:51,789 INFO L469 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-09-08 00:02:51,789 INFO L470 ceAbstractionStarter]: WitnessConsidered=2 [2024-09-08 00:02:51,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 12:02:51 BasicIcfg [2024-09-08 00:02:51,790 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-08 00:02:51,792 INFO L158 Benchmark]: Toolchain (without parser) took 5056.18ms. Allocated memory was 159.4MB in the beginning and 203.4MB in the end (delta: 44.0MB). Free memory was 129.8MB in the beginning and 88.5MB in the end (delta: 41.4MB). Peak memory consumption was 84.7MB. Max. memory is 16.1GB. [2024-09-08 00:02:51,793 INFO L158 Benchmark]: Witness Parser took 0.19ms. Allocated memory is still 159.4MB. Free memory is still 134.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-08 00:02:51,794 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 159.4MB. Free memory is still 130.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-08 00:02:51,794 INFO L158 Benchmark]: CACSL2BoogieTranslator took 618.97ms. Allocated memory is still 159.4MB. Free memory was 129.8MB in the beginning and 100.0MB in the end (delta: 29.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-09-08 00:02:51,794 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.50ms. Allocated memory is still 159.4MB. Free memory was 100.0MB in the beginning and 97.2MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-08 00:02:51,795 INFO L158 Benchmark]: Boogie Preprocessor took 43.62ms. Allocated memory is still 159.4MB. Free memory was 97.2MB in the beginning and 95.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-08 00:02:51,795 INFO L158 Benchmark]: RCFGBuilder took 834.74ms. Allocated memory was 159.4MB in the beginning and 203.4MB in the end (delta: 44.0MB). Free memory was 95.6MB in the beginning and 154.2MB in the end (delta: -58.6MB). Peak memory consumption was 50.5MB. Max. memory is 16.1GB. [2024-09-08 00:02:51,797 INFO L158 Benchmark]: TraceAbstraction took 3501.28ms. Allocated memory is still 203.4MB. Free memory was 154.2MB in the beginning and 88.5MB in the end (delta: 65.7MB). Peak memory consumption was 65.7MB. Max. memory is 16.1GB. [2024-09-08 00:02:51,800 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 0.19ms. Allocated memory is still 159.4MB. Free memory is still 134.0MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.18ms. Allocated memory is still 159.4MB. Free memory is still 130.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 618.97ms. Allocated memory is still 159.4MB. Free memory was 129.8MB in the beginning and 100.0MB in the end (delta: 29.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.50ms. Allocated memory is still 159.4MB. Free memory was 100.0MB in the beginning and 97.2MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.62ms. Allocated memory is still 159.4MB. Free memory was 97.2MB in the beginning and 95.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 834.74ms. Allocated memory was 159.4MB in the beginning and 203.4MB in the end (delta: 44.0MB). Free memory was 95.6MB in the beginning and 154.2MB in the end (delta: -58.6MB). Peak memory consumption was 50.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3501.28ms. Allocated memory is still 203.4MB. Free memory was 154.2MB in the beginning and 88.5MB in the end (delta: 65.7MB). Peak memory consumption was 65.7MB. 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: 2342, independent: 2118, independent conditional: 1761, independent unconditional: 357, dependent: 224, dependent conditional: 197, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2172, independent: 2118, independent conditional: 1761, independent unconditional: 357, dependent: 54, dependent conditional: 27, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2172, independent: 2118, independent conditional: 1761, independent unconditional: 357, dependent: 54, dependent conditional: 27, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2704, independent: 2118, independent conditional: 1761, independent unconditional: 357, dependent: 586, dependent conditional: 559, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2704, independent: 2118, independent conditional: 256, independent unconditional: 1862, dependent: 586, dependent conditional: 237, dependent unconditional: 349, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2704, independent: 2118, independent conditional: 256, independent unconditional: 1862, dependent: 586, dependent conditional: 237, dependent unconditional: 349, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 415, independent: 346, independent conditional: 28, independent unconditional: 318, dependent: 69, dependent conditional: 42, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 415, independent: 300, independent conditional: 0, independent unconditional: 300, dependent: 115, dependent conditional: 0, dependent unconditional: 115, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 115, independent: 46, independent conditional: 28, independent unconditional: 18, dependent: 69, dependent conditional: 42, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 115, independent: 46, independent conditional: 28, independent unconditional: 18, dependent: 69, dependent conditional: 42, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 827, independent: 272, independent conditional: 158, independent unconditional: 113, dependent: 556, dependent conditional: 398, dependent unconditional: 158, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 2704, independent: 1772, independent conditional: 228, independent unconditional: 1544, dependent: 517, dependent conditional: 195, dependent unconditional: 322, unknown: 415, unknown conditional: 70, unknown unconditional: 345] , Statistics on independence cache: Total cache size (in pairs): 415, Positive cache size: 346, Positive conditional cache size: 28, Positive unconditional cache size: 318, Negative cache size: 69, Negative conditional cache size: 42, Negative unconditional cache size: 27, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1827, Maximal queried relation: 4, Independence queries for same thread: 170, Persistent sets #1 benchmarks: Persistent set computation time: 0.3s, Number of persistent set computation: 105, Number of trivial persistent sets: 99, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 384, independent: 357, independent conditional: 0, independent unconditional: 357, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2342, independent: 2118, independent conditional: 1761, independent unconditional: 357, dependent: 224, dependent conditional: 197, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2172, independent: 2118, independent conditional: 1761, independent unconditional: 357, dependent: 54, dependent conditional: 27, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2172, independent: 2118, independent conditional: 1761, independent unconditional: 357, dependent: 54, dependent conditional: 27, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2704, independent: 2118, independent conditional: 1761, independent unconditional: 357, dependent: 586, dependent conditional: 559, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2704, independent: 2118, independent conditional: 256, independent unconditional: 1862, dependent: 586, dependent conditional: 237, dependent unconditional: 349, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2704, independent: 2118, independent conditional: 256, independent unconditional: 1862, dependent: 586, dependent conditional: 237, dependent unconditional: 349, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 415, independent: 346, independent conditional: 28, independent unconditional: 318, dependent: 69, dependent conditional: 42, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 415, independent: 300, independent conditional: 0, independent unconditional: 300, dependent: 115, dependent conditional: 0, dependent unconditional: 115, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 115, independent: 46, independent conditional: 28, independent unconditional: 18, dependent: 69, dependent conditional: 42, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 115, independent: 46, independent conditional: 28, independent unconditional: 18, dependent: 69, dependent conditional: 42, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 827, independent: 272, independent conditional: 158, independent unconditional: 113, dependent: 556, dependent conditional: 398, dependent unconditional: 158, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 2704, independent: 1772, independent conditional: 228, independent unconditional: 1544, dependent: 517, dependent conditional: 195, dependent unconditional: 322, unknown: 415, unknown conditional: 70, unknown unconditional: 345] , Statistics on independence cache: Total cache size (in pairs): 415, Positive cache size: 346, Positive conditional cache size: 28, Positive unconditional cache size: 318, Negative cache size: 69, Negative conditional cache size: 42, Negative unconditional cache size: 27, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1827, Maximal queried relation: 4, Independence queries for same thread: 170 - PositiveResult [Line: 762]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 763]: 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: 3.4s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 1.5s, 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: 22, 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, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 510 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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! [2024-09-08 00:02:51,838 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 [2024-09-08 00:02:52,035 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE