./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 --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 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-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 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-e94c40d-m [2024-09-22 23:59:42,973 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-22 23:59:43,049 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-22 23:59:43,054 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-22 23:59:43,056 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-22 23:59:43,077 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-22 23:59:43,078 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-22 23:59:43,078 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-22 23:59:43,078 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-22 23:59:43,079 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-22 23:59:43,079 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-22 23:59:43,079 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-22 23:59:43,079 INFO L153 SettingsManager]: * Use SBE=true [2024-09-22 23:59:43,080 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-22 23:59:43,080 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-22 23:59:43,080 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-22 23:59:43,080 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-22 23:59:43,080 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-22 23:59:43,081 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-22 23:59:43,081 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-22 23:59:43,081 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-22 23:59:43,084 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-22 23:59:43,084 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-22 23:59:43,084 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-22 23:59:43,088 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-22 23:59:43,088 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-22 23:59:43,088 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-22 23:59:43,088 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-22 23:59:43,088 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-22 23:59:43,088 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-22 23:59:43,088 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-22 23:59:43,089 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-22 23:59:43,089 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-22 23:59:43,089 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-22 23:59:43,089 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-22 23:59:43,089 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-22 23:59:43,089 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-22 23:59:43,089 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-22 23:59:43,089 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-22 23:59:43,090 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-22 23:59:43,090 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-22 23:59:43,091 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-09-22 23:59:43,272 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-22 23:59:43,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-22 23:59:43,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-22 23:59:43,294 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-22 23:59:43,294 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-22 23:59:43,296 INFO L431 ainManager$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 [2024-09-22 23:59:43,404 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-22 23:59:43,405 INFO L274 PluginConnector]: CDTParser initialized [2024-09-22 23:59:43,405 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i [2024-09-22 23:59:44,701 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-22 23:59:44,920 INFO L384 CDTParser]: Found 1 translation units. [2024-09-22 23:59:44,920 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i [2024-09-22 23:59:44,934 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/5b1439851/bcf19329bc91409cb84e1da9ffea7371/FLAG844411707 [2024-09-22 23:59:44,948 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/5b1439851/bcf19329bc91409cb84e1da9ffea7371 [2024-09-22 23:59:44,948 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-22 23:59:44,950 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-22 23:59:44,951 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-22 23:59:44,951 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-22 23:59:44,956 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-22 23:59:44,956 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 22.09 11:59:43" (1/2) ... [2024-09-22 23:59:44,957 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7108c96f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.09 11:59:44, skipping insertion in model container [2024-09-22 23:59:44,957 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 22.09 11:59:43" (1/2) ... [2024-09-22 23:59:44,959 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@dc46e74 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.09 11:59:44, skipping insertion in model container [2024-09-22 23:59:44,959 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.09 11:59:44" (2/2) ... [2024-09-22 23:59:44,959 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7108c96f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 11:59:44, skipping insertion in model container [2024-09-22 23:59:44,959 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.09 11:59:44" (2/2) ... [2024-09-22 23:59:44,999 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-22 23:59:44,999 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)) [2024-09-22 23:59:44,999 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)) [2024-09-22 23:59:44,999 INFO L1541 ArrayList]: ghost_variable m_locked = 0 [2024-09-22 23:59:44,999 INFO L1541 ArrayList]: ghost_variable multithreaded = 0 [2024-09-22 23:59:44,999 INFO L1541 ArrayList]: ghost_update [L726-L726] m_locked = 1; [2024-09-22 23:59:45,000 INFO L1541 ArrayList]: ghost_update [L726-L726] m_locked = 1; [2024-09-22 23:59:45,000 INFO L1541 ArrayList]: ghost_update [L726-L726] m_locked = 1; [2024-09-22 23:59:45,000 INFO L1541 ArrayList]: ghost_update [L726-L726] m_locked = 1; [2024-09-22 23:59:45,000 INFO L1541 ArrayList]: ghost_update [L726-L726] m_locked = 1; [2024-09-22 23:59:45,000 INFO L1541 ArrayList]: ghost_update [L726-L726] m_locked = 1; [2024-09-22 23:59:45,000 INFO L1541 ArrayList]: ghost_update [L726-L726] m_locked = 1; [2024-09-22 23:59:45,000 INFO L1541 ArrayList]: ghost_update [L742-L742] m_locked = 1; [2024-09-22 23:59:45,000 INFO L1541 ArrayList]: ghost_update [L742-L742] m_locked = 1; [2024-09-22 23:59:45,001 INFO L1541 ArrayList]: ghost_update [L742-L742] m_locked = 1; [2024-09-22 23:59:45,001 INFO L1541 ArrayList]: ghost_update [L742-L742] m_locked = 1; [2024-09-22 23:59:45,001 INFO L1541 ArrayList]: ghost_update [L742-L742] m_locked = 1; [2024-09-22 23:59:45,001 INFO L1541 ArrayList]: ghost_update [L742-L742] m_locked = 1; [2024-09-22 23:59:45,001 INFO L1541 ArrayList]: ghost_update [L761-L761] multithreaded = 1; [2024-09-22 23:59:45,001 INFO L1541 ArrayList]: ghost_update [L750-L750] m_locked = 0; [2024-09-22 23:59:45,001 INFO L1541 ArrayList]: ghost_update [L750-L750] m_locked = 0; [2024-09-22 23:59:45,001 INFO L1541 ArrayList]: ghost_update [L750-L750] m_locked = 0; [2024-09-22 23:59:45,002 INFO L1541 ArrayList]: ghost_update [L750-L750] m_locked = 0; [2024-09-22 23:59:45,002 INFO L1541 ArrayList]: ghost_update [L750-L750] m_locked = 0; [2024-09-22 23:59:45,002 INFO L1541 ArrayList]: ghost_update [L750-L750] m_locked = 0; [2024-09-22 23:59:45,002 INFO L1541 ArrayList]: ghost_update [L733-L733] m_locked = 0; [2024-09-22 23:59:45,002 INFO L1541 ArrayList]: ghost_update [L733-L733] m_locked = 0; [2024-09-22 23:59:45,002 INFO L1541 ArrayList]: ghost_update [L733-L733] m_locked = 0; [2024-09-22 23:59:45,002 INFO L1541 ArrayList]: ghost_update [L733-L733] m_locked = 0; [2024-09-22 23:59:45,002 INFO L1541 ArrayList]: ghost_update [L733-L733] m_locked = 0; [2024-09-22 23:59:45,003 INFO L1541 ArrayList]: ghost_update [L733-L733] m_locked = 0; [2024-09-22 23:59:45,003 INFO L1541 ArrayList]: ghost_update [L733-L733] m_locked = 0; [2024-09-22 23:59:45,050 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-22 23:59:45,359 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i[30440,30453] [2024-09-22 23:59:45,374 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i[30895,30908] [2024-09-22 23:59:45,380 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-22 23:59:45,390 INFO L200 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local [2024-09-22 23:59:45,440 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i[30440,30453] 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 [2024-09-22 23:59:45,450 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i[30895,30908] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-22 23:59:45,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-22 23:59:45,491 INFO L204 MainTranslator]: Completed translation [2024-09-22 23:59:45,492 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 11:59:45 WrapperNode [2024-09-22 23:59:45,492 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-22 23:59:45,493 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-22 23:59:45,493 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-22 23:59:45,493 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-22 23:59:45,498 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 11:59:45" (1/1) ... [2024-09-22 23:59:45,522 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 11:59:45" (1/1) ... [2024-09-22 23:59:45,554 INFO L138 Inliner]: procedures = 168, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 163 [2024-09-22 23:59:45,554 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-22 23:59:45,555 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-22 23:59:45,555 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-22 23:59:45,555 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-22 23:59:45,563 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 11:59:45" (1/1) ... [2024-09-22 23:59:45,564 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 11:59:45" (1/1) ... [2024-09-22 23:59:45,569 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 11:59:45" (1/1) ... [2024-09-22 23:59:45,572 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 11:59:45" (1/1) ... [2024-09-22 23:59:45,577 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 11:59:45" (1/1) ... [2024-09-22 23:59:45,584 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 11:59:45" (1/1) ... [2024-09-22 23:59:45,589 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 11:59:45" (1/1) ... [2024-09-22 23:59:45,592 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 11:59:45" (1/1) ... [2024-09-22 23:59:45,594 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-22 23:59:45,595 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-22 23:59:45,597 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-22 23:59:45,598 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-22 23:59:45,598 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 11:59:45" (1/1) ... [2024-09-22 23:59:45,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-22 23:59:45,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-22 23:59:45,623 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-09-22 23:59:45,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-09-22 23:59:45,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-22 23:59:45,663 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-09-22 23:59:45,663 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-09-22 23:59:45,663 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-09-22 23:59:45,663 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-09-22 23:59:45,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-22 23:59:45,664 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-09-22 23:59:45,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-22 23:59:45,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-09-22 23:59:45,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-22 23:59:45,665 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-09-22 23:59:45,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-22 23:59:45,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-22 23:59:45,666 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-09-22 23:59:45,771 INFO L242 CfgBuilder]: Building ICFG [2024-09-22 23:59:45,773 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-22 23:59:46,030 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-22 23:59:46,031 INFO L291 CfgBuilder]: Performing block encoding [2024-09-22 23:59:46,168 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-22 23:59:46,169 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-22 23:59:46,170 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.09 11:59:46 BoogieIcfgContainer [2024-09-22 23:59:46,170 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-22 23:59:46,172 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-22 23:59:46,172 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-22 23:59:46,175 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-22 23:59:46,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 22.09 11:59:43" (1/4) ... [2024-09-22 23:59:46,176 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5242bee8 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 22.09 11:59:46, skipping insertion in model container [2024-09-22 23:59:46,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.09 11:59:44" (2/4) ... [2024-09-22 23:59:46,177 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5242bee8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.09 11:59:46, skipping insertion in model container [2024-09-22 23:59:46,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 11:59:45" (3/4) ... [2024-09-22 23:59:46,177 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5242bee8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.09 11:59:46, skipping insertion in model container [2024-09-22 23:59:46,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.09 11:59:46" (4/4) ... [2024-09-22 23:59:46,179 INFO L112 eAbstractionObserver]: Analyzing ICFG circular_buffer_bad.i [2024-09-22 23:59:46,208 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-22 23:59:46,208 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-09-22 23:59:46,208 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-22 23:59:46,246 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-09-22 23:59:46,282 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-22 23:59:46,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-22 23:59:46,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-22 23:59:46,284 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) [2024-09-22 23:59:46,286 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 [2024-09-22 23:59:46,310 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-22 23:59:46,319 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1Thread1of1ForFork0 ======== [2024-09-22 23:59:46,324 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;@3f991bab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-22 23:59:46,324 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-22 23:59:46,397 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-22 23:59:46,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 23:59:46,401 INFO L85 PathProgramCache]: Analyzing trace with hash 522357989, now seen corresponding path program 1 times [2024-09-22 23:59:46,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 23:59:46,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869259519] [2024-09-22 23:59:46,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 23:59:46,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 23:59:46,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 23:59:46,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-22 23:59:46,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 23:59:46,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869259519] [2024-09-22 23:59:46,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869259519] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-22 23:59:46,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-22 23:59:46,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-22 23:59:46,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558924689] [2024-09-22 23:59:46,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-22 23:59:46,921 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-22 23:59:46,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 23:59:46,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-22 23:59:46,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-22 23:59:46,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 23:59:46,945 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 23:59:46,946 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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) [2024-09-22 23:59:46,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 23:59:47,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-22 23:59:47,318 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-22 23:59:47,318 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-22 23:59:47,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 23:59:47,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1756851750, now seen corresponding path program 1 times [2024-09-22 23:59:47,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 23:59:47,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100715959] [2024-09-22 23:59:47,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 23:59:47,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 23:59:47,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 23:59:47,521 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-09-22 23:59:47,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 23:59:47,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100715959] [2024-09-22 23:59:47,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100715959] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-22 23:59:47,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-22 23:59:47,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-22 23:59:47,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048248123] [2024-09-22 23:59:47,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-22 23:59:47,524 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-22 23:59:47,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 23:59:47,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-22 23:59:47,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-22 23:59:47,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 23:59:47,527 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 23:59:47,528 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2024-09-22 23:59:47,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-22 23:59:47,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 23:59:47,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-22 23:59:47,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:47,618 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-22 23:59:47,618 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-22 23:59:47,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 23:59:47,619 INFO L85 PathProgramCache]: Analyzing trace with hash 122140346, now seen corresponding path program 2 times [2024-09-22 23:59:47,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 23:59:47,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706191228] [2024-09-22 23:59:47,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 23:59:47,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 23:59:47,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 23:59:47,675 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-22 23:59:47,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 23:59:47,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706191228] [2024-09-22 23:59:47,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706191228] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-22 23:59:47,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-22 23:59:47,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-22 23:59:47,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099374356] [2024-09-22 23:59:47,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-22 23:59:47,676 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-22 23:59:47,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 23:59:47,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-22 23:59:47,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-22 23:59:47,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 23:59:47,677 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 23:59:47,677 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2024-09-22 23:59:47,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-22 23:59:47,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:47,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 23:59:47,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-22 23:59:47,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:47,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:47,747 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-22 23:59:47,747 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-22 23:59:47,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 23:59:47,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1193521844, now seen corresponding path program 1 times [2024-09-22 23:59:47,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 23:59:47,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959744980] [2024-09-22 23:59:47,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 23:59:47,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 23:59:47,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 23:59:47,855 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-22 23:59:47,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 23:59:47,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959744980] [2024-09-22 23:59:47,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959744980] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-22 23:59:47,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857502781] [2024-09-22 23:59:47,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 23:59:47,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-22 23:59:47,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-22 23:59:47,873 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-22 23:59:47,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-22 23:59:47,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 23:59:47,964 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-22 23:59:47,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-22 23:59:48,079 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-22 23:59:48,079 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-22 23:59:48,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1857502781] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-22 23:59:48,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-22 23:59:48,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-09-22 23:59:48,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983830165] [2024-09-22 23:59:48,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-22 23:59:48,080 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-22 23:59:48,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 23:59:48,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-22 23:59:48,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-22 23:59:48,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 23:59:48,081 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 23:59:48,082 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2024-09-22 23:59:48,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-22 23:59:48,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:48,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:48,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 23:59:48,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-22 23:59:48,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:48,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:48,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:48,185 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-22 23:59:48,367 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-22 23:59:48,368 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-22 23:59:48,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 23:59:48,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1067252241, now seen corresponding path program 1 times [2024-09-22 23:59:48,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 23:59:48,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803708539] [2024-09-22 23:59:48,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 23:59:48,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 23:59:48,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 23:59:48,642 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-22 23:59:48,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 23:59:48,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803708539] [2024-09-22 23:59:48,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803708539] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-22 23:59:48,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-22 23:59:48,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-22 23:59:48,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200659033] [2024-09-22 23:59:48,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-22 23:59:48,643 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-22 23:59:48,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 23:59:48,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-22 23:59:48,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-22 23:59:48,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 23:59:48,645 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 23:59:48,645 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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) [2024-09-22 23:59:48,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-22 23:59:48,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:48,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:48,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:48,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 23:59:49,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-22 23:59:49,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:49,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:49,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:49,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:49,056 INFO L785 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-09-22 23:59:49,056 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-22 23:59:49,065 INFO L408 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2024-09-22 23:59:49,067 INFO L312 ceAbstractionStarter]: Result for error location t1Thread1of1ForFork0 was SAFE (1/3) [2024-09-22 23:59:49,070 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-22 23:59:49,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-22 23:59:49,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-22 23:59:49,073 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-22 23:59:49,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2024-09-22 23:59:49,076 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-22 23:59:49,077 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-22 23:59:49,077 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;@3f991bab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-22 23:59:49,077 INFO L337 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-09-22 23:59:49,116 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)] === [2024-09-22 23:59:49,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 23:59:49,116 INFO L85 PathProgramCache]: Analyzing trace with hash -221182924, now seen corresponding path program 1 times [2024-09-22 23:59:49,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 23:59:49,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787451678] [2024-09-22 23:59:49,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 23:59:49,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 23:59:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 23:59:49,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-22 23:59:49,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 23:59:49,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787451678] [2024-09-22 23:59:49,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787451678] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-22 23:59:49,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-22 23:59:49,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-09-22 23:59:49,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152697564] [2024-09-22 23:59:49,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-22 23:59:49,173 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-22 23:59:49,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 23:59:49,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-22 23:59:49,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-22 23:59:49,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 23:59:49,174 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 23:59:49,174 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) [2024-09-22 23:59:49,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 23:59:49,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:49,257 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-09-22 23:59:49,257 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)] === [2024-09-22 23:59:49,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 23:59:49,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1907348557, now seen corresponding path program 1 times [2024-09-22 23:59:49,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 23:59:49,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862491540] [2024-09-22 23:59:49,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 23:59:49,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 23:59:49,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 23:59:49,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-22 23:59:49,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 23:59:49,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862491540] [2024-09-22 23:59:49,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862491540] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-22 23:59:49,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-22 23:59:49,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-22 23:59:49,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613433002] [2024-09-22 23:59:49,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-22 23:59:49,351 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-22 23:59:49,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 23:59:49,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-22 23:59:49,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-22 23:59:49,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 23:59:49,352 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 23:59:49,353 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 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) [2024-09-22 23:59:49,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:49,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 23:59:49,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:49,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:49,386 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-22 23:59:49,386 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)] === [2024-09-22 23:59:49,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 23:59:49,387 INFO L85 PathProgramCache]: Analyzing trace with hash -959247894, now seen corresponding path program 1 times [2024-09-22 23:59:49,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 23:59:49,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697661981] [2024-09-22 23:59:49,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 23:59:49,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 23:59:49,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 23:59:49,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-22 23:59:49,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 23:59:49,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697661981] [2024-09-22 23:59:49,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697661981] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-22 23:59:49,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-22 23:59:49,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-22 23:59:49,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034861712] [2024-09-22 23:59:49,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-22 23:59:49,485 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-22 23:59:49,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 23:59:49,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-22 23:59:49,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-22 23:59:49,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 23:59:49,485 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 23:59:49,485 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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) [2024-09-22 23:59:49,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:49,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:49,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 23:59:49,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:49,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:49,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:49,741 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-09-22 23:59:49,741 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 4 remaining) [2024-09-22 23:59:49,741 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-09-22 23:59:49,741 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-09-22 23:59:49,741 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-09-22 23:59:49,743 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-09-22 23:59:49,743 INFO L312 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE,SAFE,SAFE (2/3) [2024-09-22 23:59:49,744 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-22 23:59:49,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-22 23:59:49,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-22 23:59:49,746 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-22 23:59:49,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2024-09-22 23:59:49,750 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-22 23:59:49,750 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t2Thread1of1ForFork1 ======== [2024-09-22 23:59:49,750 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;@3f991bab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-22 23:59:49,750 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-22 23:59:49,866 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-22 23:59:49,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 23:59:49,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1691354784, now seen corresponding path program 1 times [2024-09-22 23:59:49,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 23:59:49,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374708356] [2024-09-22 23:59:49,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 23:59:49,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 23:59:49,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 23:59:49,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-22 23:59:49,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 23:59:49,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374708356] [2024-09-22 23:59:49,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374708356] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-22 23:59:49,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-22 23:59:49,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-22 23:59:49,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925946731] [2024-09-22 23:59:49,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-22 23:59:49,914 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-22 23:59:49,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 23:59:49,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-22 23:59:49,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-22 23:59:49,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 23:59:49,914 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 23:59:49,915 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 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) [2024-09-22 23:59:49,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 23:59:49,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-22 23:59:49,980 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-09-22 23:59:49,980 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-22 23:59:49,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 23:59:49,981 INFO L85 PathProgramCache]: Analyzing trace with hash -100990899, now seen corresponding path program 1 times [2024-09-22 23:59:49,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 23:59:49,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776357406] [2024-09-22 23:59:49,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 23:59:49,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 23:59:49,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 23:59:50,035 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-22 23:59:50,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 23:59:50,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776357406] [2024-09-22 23:59:50,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776357406] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-22 23:59:50,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-22 23:59:50,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-22 23:59:50,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013789275] [2024-09-22 23:59:50,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-22 23:59:50,037 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-22 23:59:50,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 23:59:50,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-22 23:59:50,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-22 23:59:50,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 23:59:50,037 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 23:59:50,038 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2024-09-22 23:59:50,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-22 23:59:50,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 23:59:50,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-22 23:59:50,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:50,073 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-09-22 23:59:50,073 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-22 23:59:50,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 23:59:50,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1984757791, now seen corresponding path program 1 times [2024-09-22 23:59:50,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 23:59:50,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233842750] [2024-09-22 23:59:50,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 23:59:50,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 23:59:50,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 23:59:50,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-22 23:59:50,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 23:59:50,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233842750] [2024-09-22 23:59:50,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233842750] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-22 23:59:50,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-22 23:59:50,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-22 23:59:50,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690398793] [2024-09-22 23:59:50,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-22 23:59:50,140 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-22 23:59:50,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 23:59:50,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-22 23:59:50,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-22 23:59:50,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 23:59:50,141 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 23:59:50,141 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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) [2024-09-22 23:59:50,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-22 23:59:50,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:50,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 23:59:50,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-22 23:59:50,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:50,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:50,250 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-09-22 23:59:50,250 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-22 23:59:50,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 23:59:50,250 INFO L85 PathProgramCache]: Analyzing trace with hash 189459229, now seen corresponding path program 1 times [2024-09-22 23:59:50,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 23:59:50,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090915500] [2024-09-22 23:59:50,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 23:59:50,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 23:59:50,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 23:59:50,296 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-22 23:59:50,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 23:59:50,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090915500] [2024-09-22 23:59:50,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090915500] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-22 23:59:50,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-22 23:59:50,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-22 23:59:50,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052303778] [2024-09-22 23:59:50,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-22 23:59:50,297 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-22 23:59:50,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 23:59:50,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-22 23:59:50,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-22 23:59:50,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 23:59:50,298 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 23:59:50,298 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2024-09-22 23:59:50,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-22 23:59:50,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:50,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:50,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 23:59:50,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-22 23:59:50,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:50,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:50,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:50,353 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-09-22 23:59:50,353 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-22 23:59:50,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 23:59:50,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1660472857, now seen corresponding path program 2 times [2024-09-22 23:59:50,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 23:59:50,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721709779] [2024-09-22 23:59:50,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 23:59:50,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 23:59:50,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 23:59:50,408 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-22 23:59:50,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 23:59:50,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721709779] [2024-09-22 23:59:50,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721709779] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-22 23:59:50,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-22 23:59:50,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-22 23:59:50,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308756974] [2024-09-22 23:59:50,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-22 23:59:50,409 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-22 23:59:50,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 23:59:50,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-22 23:59:50,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-22 23:59:50,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 23:59:50,411 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 23:59:50,411 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2024-09-22 23:59:50,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-22 23:59:50,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:50,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:50,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:50,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 23:59:50,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-22 23:59:50,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:50,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:50,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:50,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:50,462 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-09-22 23:59:50,462 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-22 23:59:50,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 23:59:50,462 INFO L85 PathProgramCache]: Analyzing trace with hash 2037311781, now seen corresponding path program 1 times [2024-09-22 23:59:50,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 23:59:50,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97147564] [2024-09-22 23:59:50,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 23:59:50,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 23:59:50,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 23:59:50,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-22 23:59:50,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 23:59:50,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97147564] [2024-09-22 23:59:50,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97147564] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-22 23:59:50,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-22 23:59:50,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-22 23:59:50,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591816014] [2024-09-22 23:59:50,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-22 23:59:50,575 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-22 23:59:50,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 23:59:50,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-22 23:59:50,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-22 23:59:50,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 23:59:50,576 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 23:59:50,576 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 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) [2024-09-22 23:59:50,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-22 23:59:50,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:50,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:50,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:50,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:50,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 23:59:50,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-22 23:59:50,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:50,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:50,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:50,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:50,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:50,636 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-09-22 23:59:50,636 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-22 23:59:50,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 23:59:50,636 INFO L85 PathProgramCache]: Analyzing trace with hash 618199985, now seen corresponding path program 1 times [2024-09-22 23:59:50,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 23:59:50,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425794073] [2024-09-22 23:59:50,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 23:59:50,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 23:59:50,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 23:59:50,716 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-22 23:59:50,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 23:59:50,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425794073] [2024-09-22 23:59:50,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425794073] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-22 23:59:50,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-22 23:59:50,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-22 23:59:50,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340874582] [2024-09-22 23:59:50,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-22 23:59:50,719 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-22 23:59:50,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 23:59:50,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-22 23:59:50,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-22 23:59:50,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 23:59:50,719 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 23:59:50,719 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 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) [2024-09-22 23:59:50,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-22 23:59:50,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:50,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:50,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:50,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:50,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:50,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 23:59:50,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-22 23:59:50,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:50,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:50,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:50,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:50,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:50,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 23:59:50,766 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-09-22 23:59:50,766 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-22 23:59:50,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 23:59:50,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1025629362, now seen corresponding path program 1 times [2024-09-22 23:59:50,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 23:59:50,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139895999] [2024-09-22 23:59:50,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 23:59:50,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 23:59:50,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-22 23:59:50,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1082857266] [2024-09-22 23:59:50,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 23:59:50,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-22 23:59:50,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-22 23:59:50,855 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-22 23:59:50,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-22 23:59:51,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-09-22 23:59:51,087 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-09-22 23:59:51,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-09-22 23:59:51,240 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-09-22 23:59:51,241 INFO L326 BasicCegarLoop]: Counterexample is feasible [2024-09-22 23:59:51,241 INFO L785 garLoopResultBuilder]: Registering result UNSAFE for location t2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-09-22 23:59:51,255 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-22 23:59:51,441 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-22 23:59:51,442 INFO L408 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2024-09-22 23:59:51,443 INFO L312 ceAbstractionStarter]: Result for error location t2Thread1of1ForFork1 was UNSAFE (3/3) [2024-09-22 23:59:51,517 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-09-22 23:59:51,517 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-22 23:59:51,520 INFO L469 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-09-22 23:59:51,524 INFO L470 ceAbstractionStarter]: WitnessConsidered=2 [2024-09-22 23:59:51,525 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.09 11:59:51 BasicIcfg [2024-09-22 23:59:51,525 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-22 23:59:51,525 INFO L158 Benchmark]: Toolchain (without parser) took 6575.97ms. Allocated memory was 178.3MB in the beginning and 281.0MB in the end (delta: 102.8MB). Free memory was 103.7MB in the beginning and 201.0MB in the end (delta: -97.3MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. [2024-09-22 23:59:51,525 INFO L158 Benchmark]: Witness Parser took 0.13ms. Allocated memory is still 117.4MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-22 23:59:51,526 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 178.3MB. Free memory was 151.7MB in the beginning and 151.5MB in the end (delta: 235.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-22 23:59:51,526 INFO L158 Benchmark]: CACSL2BoogieTranslator took 541.37ms. Allocated memory is still 178.3MB. Free memory was 103.5MB in the beginning and 128.6MB in the end (delta: -25.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-22 23:59:51,526 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.70ms. Allocated memory is still 178.3MB. Free memory was 128.6MB in the beginning and 126.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-22 23:59:51,526 INFO L158 Benchmark]: Boogie Preprocessor took 39.86ms. Allocated memory is still 178.3MB. Free memory was 126.5MB in the beginning and 124.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-22 23:59:51,527 INFO L158 Benchmark]: RCFGBuilder took 575.22ms. Allocated memory is still 178.3MB. Free memory was 124.4MB in the beginning and 81.7MB in the end (delta: 42.7MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2024-09-22 23:59:51,528 INFO L158 Benchmark]: TraceAbstraction took 5353.22ms. Allocated memory was 178.3MB in the beginning and 281.0MB in the end (delta: 102.8MB). Free memory was 80.4MB in the beginning and 201.0MB in the end (delta: -120.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-22 23:59:51,529 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 0.13ms. Allocated memory is still 117.4MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.09ms. Allocated memory is still 178.3MB. Free memory was 151.7MB in the beginning and 151.5MB in the end (delta: 235.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 541.37ms. Allocated memory is still 178.3MB. Free memory was 103.5MB in the beginning and 128.6MB in the end (delta: -25.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.70ms. Allocated memory is still 178.3MB. Free memory was 128.6MB in the beginning and 126.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.86ms. Allocated memory is still 178.3MB. Free memory was 126.5MB in the beginning and 124.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 575.22ms. Allocated memory is still 178.3MB. Free memory was 124.4MB in the beginning and 81.7MB in the end (delta: 42.7MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * TraceAbstraction took 5353.22ms. Allocated memory was 178.3MB in the beginning and 281.0MB in the end (delta: 102.8MB). Free memory was 80.4MB in the beginning and 201.0MB in the end (delta: -120.7MB). 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: 9911, independent: 8534, independent conditional: 7270, independent unconditional: 1264, dependent: 1377, dependent conditional: 1347, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8881, independent: 8534, independent conditional: 7270, independent unconditional: 1264, dependent: 347, dependent conditional: 317, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 8881, independent: 8534, independent conditional: 7270, independent unconditional: 1264, dependent: 347, dependent conditional: 317, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10047, independent: 8534, independent conditional: 7270, independent unconditional: 1264, dependent: 1513, dependent conditional: 1483, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 10047, independent: 8534, independent conditional: 0, independent unconditional: 8534, dependent: 1513, dependent conditional: 571, dependent unconditional: 942, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 10047, independent: 8534, independent conditional: 0, independent unconditional: 8534, dependent: 1513, dependent conditional: 571, dependent unconditional: 942, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1040, independent: 968, independent conditional: 0, independent unconditional: 968, dependent: 72, dependent conditional: 42, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1040, independent: 946, independent conditional: 0, independent unconditional: 946, dependent: 94, dependent conditional: 0, dependent unconditional: 94, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 94, independent: 22, independent conditional: 0, independent unconditional: 22, dependent: 72, dependent conditional: 42, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 94, independent: 22, independent conditional: 0, independent unconditional: 22, dependent: 72, dependent conditional: 42, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 309, independent: 72, independent conditional: 0, independent unconditional: 72, dependent: 237, dependent conditional: 116, dependent unconditional: 121, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 10047, independent: 7566, independent conditional: 0, independent unconditional: 7566, dependent: 1441, dependent conditional: 529, dependent unconditional: 912, unknown: 1040, unknown conditional: 42, unknown unconditional: 998] , Statistics on independence cache: Total cache size (in pairs): 1040, Positive cache size: 968, Positive conditional cache size: 0, Positive unconditional cache size: 968, Negative cache size: 72, Negative conditional cache size: 42, Negative unconditional cache size: 30, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 8182, Maximal queried relation: 5, Independence queries for same thread: 1030, Persistent sets #1 benchmarks: Persistent set computation time: 0.3s, Number of persistent set computation: 548, Number of trivial persistent sets: 513, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1294, independent: 1264, independent conditional: 0, independent unconditional: 1264, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 9911, independent: 8534, independent conditional: 7270, independent unconditional: 1264, dependent: 1377, dependent conditional: 1347, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8881, independent: 8534, independent conditional: 7270, independent unconditional: 1264, dependent: 347, dependent conditional: 317, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 8881, independent: 8534, independent conditional: 7270, independent unconditional: 1264, dependent: 347, dependent conditional: 317, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10047, independent: 8534, independent conditional: 7270, independent unconditional: 1264, dependent: 1513, dependent conditional: 1483, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 10047, independent: 8534, independent conditional: 0, independent unconditional: 8534, dependent: 1513, dependent conditional: 571, dependent unconditional: 942, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 10047, independent: 8534, independent conditional: 0, independent unconditional: 8534, dependent: 1513, dependent conditional: 571, dependent unconditional: 942, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1040, independent: 968, independent conditional: 0, independent unconditional: 968, dependent: 72, dependent conditional: 42, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1040, independent: 946, independent conditional: 0, independent unconditional: 946, dependent: 94, dependent conditional: 0, dependent unconditional: 94, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 94, independent: 22, independent conditional: 0, independent unconditional: 22, dependent: 72, dependent conditional: 42, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 94, independent: 22, independent conditional: 0, independent unconditional: 22, dependent: 72, dependent conditional: 42, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 309, independent: 72, independent conditional: 0, independent unconditional: 72, dependent: 237, dependent conditional: 116, dependent unconditional: 121, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 10047, independent: 7566, independent conditional: 0, independent unconditional: 7566, dependent: 1441, dependent conditional: 529, dependent unconditional: 912, unknown: 1040, unknown conditional: 42, unknown unconditional: 998] , Statistics on independence cache: Total cache size (in pairs): 1040, Positive cache size: 968, Positive conditional cache size: 0, Positive unconditional cache size: 968, Negative cache size: 72, Negative conditional cache size: 42, Negative unconditional cache size: 30, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 8182, Maximal queried relation: 5, Independence queries for same thread: 1030 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3483, independent: 3239, independent conditional: 2018, independent unconditional: 1221, dependent: 244, dependent conditional: 213, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3283, independent: 3239, independent conditional: 2018, independent unconditional: 1221, dependent: 44, dependent conditional: 13, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3283, independent: 3239, independent conditional: 2018, independent unconditional: 1221, dependent: 44, dependent conditional: 13, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3459, independent: 3239, independent conditional: 2018, independent unconditional: 1221, dependent: 220, dependent conditional: 189, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3459, independent: 3239, independent conditional: 142, independent unconditional: 3097, dependent: 220, dependent conditional: 4, dependent unconditional: 216, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3459, independent: 3239, independent conditional: 142, independent unconditional: 3097, dependent: 220, dependent conditional: 4, dependent unconditional: 216, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1002, independent: 967, independent conditional: 15, independent unconditional: 952, dependent: 35, dependent conditional: 4, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1002, independent: 932, independent conditional: 0, independent unconditional: 932, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 70, independent: 35, independent conditional: 15, independent unconditional: 20, dependent: 35, dependent conditional: 4, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 70, independent: 35, independent conditional: 15, independent unconditional: 20, dependent: 35, dependent conditional: 4, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 173, independent: 89, independent conditional: 42, independent unconditional: 47, dependent: 84, dependent conditional: 10, dependent unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 3459, independent: 2272, independent conditional: 127, independent unconditional: 2145, dependent: 185, dependent conditional: 0, dependent unconditional: 185, unknown: 1002, unknown conditional: 19, unknown unconditional: 983] , Statistics on independence cache: Total cache size (in pairs): 1002, Positive cache size: 967, Positive conditional cache size: 15, Positive unconditional cache size: 952, Negative cache size: 35, Negative conditional cache size: 4, Negative unconditional cache size: 31, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 2061, Maximal queried relation: 2, Independence queries for same thread: 200, Persistent sets #1 benchmarks: Persistent set computation time: 0.1s, Number of persistent set computation: 286, Number of trivial persistent sets: 280, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1252, independent: 1221, independent conditional: 0, independent unconditional: 1221, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3483, independent: 3239, independent conditional: 2018, independent unconditional: 1221, dependent: 244, dependent conditional: 213, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3283, independent: 3239, independent conditional: 2018, independent unconditional: 1221, dependent: 44, dependent conditional: 13, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3283, independent: 3239, independent conditional: 2018, independent unconditional: 1221, dependent: 44, dependent conditional: 13, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3459, independent: 3239, independent conditional: 2018, independent unconditional: 1221, dependent: 220, dependent conditional: 189, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3459, independent: 3239, independent conditional: 142, independent unconditional: 3097, dependent: 220, dependent conditional: 4, dependent unconditional: 216, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3459, independent: 3239, independent conditional: 142, independent unconditional: 3097, dependent: 220, dependent conditional: 4, dependent unconditional: 216, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1002, independent: 967, independent conditional: 15, independent unconditional: 952, dependent: 35, dependent conditional: 4, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1002, independent: 932, independent conditional: 0, independent unconditional: 932, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 70, independent: 35, independent conditional: 15, independent unconditional: 20, dependent: 35, dependent conditional: 4, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 70, independent: 35, independent conditional: 15, independent unconditional: 20, dependent: 35, dependent conditional: 4, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 173, independent: 89, independent conditional: 42, independent unconditional: 47, dependent: 84, dependent conditional: 10, dependent unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 3459, independent: 2272, independent conditional: 127, independent unconditional: 2145, dependent: 185, dependent conditional: 0, dependent unconditional: 185, unknown: 1002, unknown conditional: 19, unknown unconditional: 983] , Statistics on independence cache: Total cache size (in pairs): 1002, Positive cache size: 967, Positive conditional cache size: 15, Positive unconditional cache size: 952, Negative cache size: 35, Negative conditional cache size: 4, Negative unconditional cache size: 31, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 2061, Maximal queried relation: 2, Independence queries for same thread: 200 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2833, independent: 2467, independent conditional: 1470, independent unconditional: 997, dependent: 366, dependent conditional: 349, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2516, independent: 2467, independent conditional: 1470, independent unconditional: 997, dependent: 49, dependent conditional: 32, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2516, independent: 2467, independent conditional: 1470, independent unconditional: 997, dependent: 49, dependent conditional: 32, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2632, independent: 2467, independent conditional: 1470, independent unconditional: 997, dependent: 165, dependent conditional: 148, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2632, independent: 2467, independent conditional: 0, independent unconditional: 2467, dependent: 165, dependent conditional: 25, dependent unconditional: 140, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2632, independent: 2467, independent conditional: 0, independent unconditional: 2467, dependent: 165, dependent conditional: 25, dependent unconditional: 140, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 767, independent: 747, independent conditional: 0, independent unconditional: 747, dependent: 20, dependent conditional: 3, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 767, independent: 736, independent conditional: 0, independent unconditional: 736, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 31, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 20, dependent conditional: 3, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 31, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 20, dependent conditional: 3, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 109, independent: 32, independent conditional: 0, independent unconditional: 32, dependent: 77, dependent conditional: 5, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 2632, independent: 1720, independent conditional: 0, independent unconditional: 1720, dependent: 145, dependent conditional: 22, dependent unconditional: 123, unknown: 767, unknown conditional: 3, unknown unconditional: 764] , Statistics on independence cache: Total cache size (in pairs): 767, Positive cache size: 747, Positive conditional cache size: 0, Positive unconditional cache size: 747, Negative cache size: 20, Negative conditional cache size: 3, Negative unconditional cache size: 17, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1593, Maximal queried relation: 7, Independence queries for same thread: 317, Persistent sets #1 benchmarks: Persistent set computation time: 0.1s, Number of persistent set computation: 155, Number of trivial persistent sets: 131, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1014, independent: 997, independent conditional: 0, independent unconditional: 997, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2833, independent: 2467, independent conditional: 1470, independent unconditional: 997, dependent: 366, dependent conditional: 349, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2516, independent: 2467, independent conditional: 1470, independent unconditional: 997, dependent: 49, dependent conditional: 32, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2516, independent: 2467, independent conditional: 1470, independent unconditional: 997, dependent: 49, dependent conditional: 32, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2632, independent: 2467, independent conditional: 1470, independent unconditional: 997, dependent: 165, dependent conditional: 148, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2632, independent: 2467, independent conditional: 0, independent unconditional: 2467, dependent: 165, dependent conditional: 25, dependent unconditional: 140, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2632, independent: 2467, independent conditional: 0, independent unconditional: 2467, dependent: 165, dependent conditional: 25, dependent unconditional: 140, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 767, independent: 747, independent conditional: 0, independent unconditional: 747, dependent: 20, dependent conditional: 3, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 767, independent: 736, independent conditional: 0, independent unconditional: 736, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 31, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 20, dependent conditional: 3, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 31, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 20, dependent conditional: 3, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 109, independent: 32, independent conditional: 0, independent unconditional: 32, dependent: 77, dependent conditional: 5, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 2632, independent: 1720, independent conditional: 0, independent unconditional: 1720, dependent: 145, dependent conditional: 22, dependent unconditional: 123, unknown: 767, unknown conditional: 3, unknown unconditional: 764] , Statistics on independence cache: Total cache size (in pairs): 767, Positive cache size: 747, Positive conditional cache size: 0, Positive unconditional cache size: 747, Negative cache size: 20, Negative conditional cache size: 3, Negative unconditional cache size: 17, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1593, Maximal queried relation: 7, Independence queries for same thread: 317 - PositiveResult [Line: 713]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - 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 - CounterExampleResult [Line: 746]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 static char buffer[10]; [L683] 0 static unsigned int first; [L684] 0 static unsigned int next; [L685] 0 static int buffer_size; [L686] 0 _Bool send, receive; [L687] 0 pthread_mutex_t m; [L1] 0 //@ ghost int m_locked = 0; [L1] 0 //@ ghost int multithreaded = 0; [L756] 0 pthread_t id1, id2; [L758] CALL 0 initLog(10) [L690] 0 buffer_size = max [L691] EXPR 0 next = 0 [L691] 0 first = next = 0 [L758] RET 0 initLog(10) [L759] 0 send=1 [L760] 0 receive=0 [L761] 0 //@ ghost multithreaded = 1; VAL [buffer={3:0}, buffer_size=10, first=0, id1=-1, m={4:0}, next=0, receive=0, send=1] [L761] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [buffer={3:0}, buffer_size=10, first=0, id1=-1, m={4:0}, next=0, receive=0, send=1] [L723] 1 int i; [L724] 1 i=0 VAL [\old(arg)={0:0}, arg={0:0}, buffer={3:0}, buffer_size=10, first=0, i=0, m={4:0}, next=0, receive=0, send=1] [L762] 0 //@ assert (!multithreaded || (m_locked || ((((-1LL + (long long) receive) + (long long) send) >= 0LL) && (((1LL - (long long) receive) - (long long) send) >= 0LL)))); VAL [buffer={3:0}, buffer_size=10, first=0, id1=-1, m={4:0}, next=0, receive=0, send=1] [L762] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [buffer={3:0}, buffer_size=10, first=0, id1=-1, id2=0, m={4:0}, next=0, receive=0, send=1] [L739] 2 int i; [L740] 2 i=0 VAL [\old(arg)={0:0}, arg={0:0}, buffer={3:0}, buffer_size=10, first=0, i=0, m={4:0}, next=0, receive=0, send=1] [L763] 0 //@ assert (!multithreaded || (m_locked || ((((-1LL + (long long) receive) + (long long) send) >= 0LL) && (((1LL - (long long) receive) - (long long) send) >= 0LL)))); VAL [buffer={3:0}, buffer_size=10, first=0, id1=-1, id2=0, m={4:0}, next=0, receive=0, send=1] [L724] COND TRUE 1 i<7 VAL [\old(arg)={0:0}, arg={0:0}, buffer={3:0}, buffer_size=10, first=0, i=0, m={4:0}, next=0, receive=0, send=1] [L726] 1 //@ ghost m_locked = 1; [L726] 1 //@ ghost m_locked = 1; [L726] 1 //@ ghost m_locked = 1; [L726] 1 //@ ghost m_locked = 1; [L726] 1 //@ ghost m_locked = 1; [L726] 1 //@ ghost m_locked = 1; [L726] 1 //@ ghost m_locked = 1; [L727] COND TRUE 1 \read(send) [L729] CALL 1 insertLogElement(i) [L707] COND TRUE 1 next < buffer_size && buffer_size > 0 [L709] 1 buffer[next] = b [L710] 1 next = (next+1)%buffer_size VAL [\old(b)=0, b=0, buffer={3:0}, buffer_size=10, first=0, m={4:0}, next=1, receive=0, send=1] [L712] COND TRUE 1 next 0 && first < buffer_size [L697] 2 first++ [L698] EXPR 2 buffer[first-1] [L698] 2 return buffer[first-1]; [L745] RET, EXPR 2 removeLogElement() [L745] COND TRUE 2 removeLogElement()==i [L747] 2 receive=0 [L748] 2 send=1 VAL [\old(arg)={0:0}, arg={0:0}, buffer={3:0}, buffer_size=10, first=1, i=0, m={4:0}, next=1, receive=0, send=1] [L750] 2 //@ ghost m_locked = 0; [L750] 2 //@ ghost m_locked = 0; [L750] 2 //@ ghost m_locked = 0; [L750] 2 //@ ghost m_locked = 0; [L750] 2 //@ ghost m_locked = 0; [L750] 2 //@ ghost m_locked = 0; [L740] 2 i++ VAL [\old(arg)={0:0}, arg={0:0}, buffer={3:0}, buffer_size=10, first=1, i=1, m={4:0}, next=1, receive=0, send=1] [L724] COND TRUE 1 i<7 VAL [\old(arg)={0:0}, arg={0:0}, buffer={3:0}, buffer_size=10, first=1, i=1, m={4:0}, next=1, receive=0, send=1] [L740] COND TRUE 2 i<7 VAL [\old(arg)={0:0}, arg={0:0}, buffer={3:0}, buffer_size=10, first=1, i=1, m={4:0}, next=1, receive=0, send=1] [L742] 2 //@ ghost m_locked = 1; [L742] 2 //@ ghost m_locked = 1; [L742] 2 //@ ghost m_locked = 1; [L742] 2 //@ ghost m_locked = 1; [L742] 2 //@ ghost m_locked = 1; [L742] 2 //@ ghost m_locked = 1; [L743] COND FALSE 2 !(\read(receive)) VAL [\old(arg)={0:0}, arg={0:0}, buffer={3:0}, buffer_size=10, first=1, i=1, m={4:0}, next=1, receive=0, send=1] [L750] 2 //@ ghost m_locked = 0; [L750] 2 //@ ghost m_locked = 0; [L750] 2 //@ ghost m_locked = 0; [L750] 2 //@ ghost m_locked = 0; [L750] 2 //@ ghost m_locked = 0; [L750] 2 //@ ghost m_locked = 0; [L726] 1 //@ ghost m_locked = 1; [L726] 1 //@ ghost m_locked = 1; [L726] 1 //@ ghost m_locked = 1; [L726] 1 //@ ghost m_locked = 1; [L726] 1 //@ ghost m_locked = 1; [L726] 1 //@ ghost m_locked = 1; [L726] 1 //@ ghost m_locked = 1; [L727] COND TRUE 1 \read(send) [L729] CALL 1 insertLogElement(i) [L707] COND TRUE 1 next < buffer_size && buffer_size > 0 [L709] 1 buffer[next] = b [L710] 1 next = (next+1)%buffer_size VAL [\old(b)=1, b=1, buffer={3:0}, buffer_size=10, first=1, m={4:0}, next=2, receive=0, send=1] [L712] COND TRUE 1 next 0 && first < buffer_size [L697] 2 first++ [L698] EXPR 2 buffer[first-1] [L698] 2 return buffer[first-1]; [L745] RET, EXPR 2 removeLogElement() [L745] COND FALSE 2 !(removeLogElement()==i) [L746] 2 reach_error() VAL [\old(arg)={0:0}, arg={0:0}, buffer={3:0}, buffer_size=10, first=2, i=2, m={4:0}, next=2, receive=1, send=0] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: t1Thread1of1ForFork0 with 1 thread instances CFG has 5 procedures, 69 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 2.8s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 1.1s, 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: 17, 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, 1.0s InterpolantComputationTime, 214 NumberOfCodeBlocks, 214 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 208 ConstructedInterpolants, 0 QuantifiedInterpolants, 918 SizeOfPredicates, 0 NumberOfNonLiveVariables, 224 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 74/79 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 69 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.4s, 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: 9, 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, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 237 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: t2Thread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 69 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.5s, 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: 23, 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, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 356 NumberOfCodeBlocks, 356 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 245 ConstructedInterpolants, 0 QuantifiedInterpolants, 1173 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 100/100 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 RESULT: Ultimate proved your program to be incorrect! [2024-09-22 23:59:51,553 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Forceful destruction successful, exit code 0 [2024-09-22 23:59:51,763 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Ended with exit code 0 [2024-09-22 23:59:51,957 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 [2024-09-22 23:59:52,157 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE