./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-more-mts.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-09-02_08-21-23.files/mutex-meet-ghost/popl20-more-mts.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a4c57e3 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-mts.wvr.c ./goblint.2024-09-02_08-21-23.files/mutex-meet-ghost/popl20-more-mts.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.witness-ghost-4a4c57e-m [2024-09-07 21:25:07,295 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-07 21:25:07,370 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-07 21:25:07,376 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-07 21:25:07,377 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-07 21:25:07,408 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-07 21:25:07,409 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-07 21:25:07,409 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-07 21:25:07,410 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-07 21:25:07,411 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-07 21:25:07,413 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-07 21:25:07,413 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-07 21:25:07,413 INFO L153 SettingsManager]: * Use SBE=true [2024-09-07 21:25:07,416 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-07 21:25:07,417 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-07 21:25:07,417 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-07 21:25:07,417 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-07 21:25:07,417 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-07 21:25:07,418 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-07 21:25:07,418 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-07 21:25:07,418 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-07 21:25:07,419 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-07 21:25:07,419 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-07 21:25:07,421 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-07 21:25:07,422 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-07 21:25:07,422 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-07 21:25:07,422 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-07 21:25:07,423 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-07 21:25:07,423 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-07 21:25:07,423 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-07 21:25:07,423 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-07 21:25:07,423 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-07 21:25:07,424 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-07 21:25:07,424 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-07 21:25:07,424 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-07 21:25:07,424 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-07 21:25:07,424 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-07 21:25:07,425 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-07 21:25:07,425 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-07 21:25:07,426 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-07 21:25:07,427 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-07 21:25:07,427 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-09-07 21:25:07,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-07 21:25:07,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-07 21:25:07,718 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-07 21:25:07,720 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-07 21:25:07,720 INFO L274 PluginConnector]: CDTParser initialized [2024-09-07 21:25:07,722 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-more-mts.wvr.c [2024-09-07 21:25:09,124 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-07 21:25:09,330 INFO L384 CDTParser]: Found 1 translation units. [2024-09-07 21:25:09,330 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-mts.wvr.c [2024-09-07 21:25:09,339 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/1be4a83fa/c2bdf8d2cdea463ba0940a9070b6a1b2/FLAGaa8eaa037 [2024-09-07 21:25:09,352 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/1be4a83fa/c2bdf8d2cdea463ba0940a9070b6a1b2 [2024-09-07 21:25:09,355 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-07 21:25:09,356 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-07 21:25:09,356 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-09-02_08-21-23.files/mutex-meet-ghost/popl20-more-mts.wvr.yml/witness.yml [2024-09-07 21:25:09,426 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-07 21:25:09,428 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-07 21:25:09,430 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-07 21:25:09,430 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-07 21:25:09,436 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-07 21:25:09,436 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 09:25:09" (1/2) ... [2024-09-07 21:25:09,437 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@790d7e85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 09:25:09, skipping insertion in model container [2024-09-07 21:25:09,438 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 09:25:09" (1/2) ... [2024-09-07 21:25:09,439 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@235753d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 09:25:09, skipping insertion in model container [2024-09-07 21:25:09,440 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.09 09:25:09" (2/2) ... [2024-09-07 21:25:09,440 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@790d7e85 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:25:09, skipping insertion in model container [2024-09-07 21:25:09,440 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.09 09:25:09" (2/2) ... [2024-09-07 21:25:09,457 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-07 21:25:09,459 INFO L1541 ArrayList]: Location invariant before [L85-L85] ! multithreaded || ((((((((((((2147483646LL + (long long )M) + (long long )N >= 0LL && (2147483647LL + (long long )N) + (long long )sum >= 0LL) && (4294967295LL + (long long )M) + (long long )sum >= 0LL) && (2147483645LL - (long long )M) + (long long )N >= 0LL) && (3221225471LL - (long long )N) + (long long )sum >= 0LL) && (4294967294LL - (long long )M) + (long long )sum >= 0LL) && (2147483646LL + (long long )N) - (long long )sum >= 0LL) && (3221225470LL + (long long )M) - (long long )N >= 0LL) && (4294967294LL + (long long )M) - (long long )sum >= 0LL) && (3221225469LL - (long long )M) - (long long )N >= 0LL) && (3221225470LL - (long long )N) - (long long )sum >= 0LL) && (4294967293LL - (long long )M) - (long long )sum >= 0LL) [2024-09-07 21:25:09,459 INFO L1541 ArrayList]: Location invariant before [L86-L86] ! multithreaded || ((((((((((((2147483646LL + (long long )M) + (long long )N >= 0LL && (2147483647LL + (long long )N) + (long long )sum >= 0LL) && (4294967295LL + (long long )M) + (long long )sum >= 0LL) && (2147483645LL - (long long )M) + (long long )N >= 0LL) && (3221225471LL - (long long )N) + (long long )sum >= 0LL) && (4294967294LL - (long long )M) + (long long )sum >= 0LL) && (2147483646LL + (long long )N) - (long long )sum >= 0LL) && (3221225470LL + (long long )M) - (long long )N >= 0LL) && (4294967294LL + (long long )M) - (long long )sum >= 0LL) && (3221225469LL - (long long )M) - (long long )N >= 0LL) && (3221225470LL - (long long )N) - (long long )sum >= 0LL) && (4294967293LL - (long long )M) - (long long )sum >= 0LL) [2024-09-07 21:25:09,460 INFO L1541 ArrayList]: Location invariant before [L87-L87] ! multithreaded || ((((((((((((2147483646LL + (long long )M) + (long long )N >= 0LL && (2147483647LL + (long long )N) + (long long )sum >= 0LL) && (4294967295LL + (long long )M) + (long long )sum >= 0LL) && (2147483645LL - (long long )M) + (long long )N >= 0LL) && (3221225471LL - (long long )N) + (long long )sum >= 0LL) && (4294967294LL - (long long )M) + (long long )sum >= 0LL) && (2147483646LL + (long long )N) - (long long )sum >= 0LL) && (3221225470LL + (long long )M) - (long long )N >= 0LL) && (4294967294LL + (long long )M) - (long long )sum >= 0LL) && (3221225469LL - (long long )M) - (long long )N >= 0LL) && (3221225470LL - (long long )N) - (long long )sum >= 0LL) && (4294967293LL - (long long )M) - (long long )sum >= 0LL) [2024-09-07 21:25:09,460 INFO L1541 ArrayList]: ghost_variable multithreaded = 0 [2024-09-07 21:25:09,460 INFO L1541 ArrayList]: ghost_update [L84-L84] multithreaded = 1; [2024-09-07 21:25:09,485 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-07 21:25:09,685 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-07 21:25:09,695 INFO L200 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-07 21:25:09,790 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-07 21:25:09,805 INFO L204 MainTranslator]: Completed translation [2024-09-07 21:25:09,806 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:25:09 WrapperNode [2024-09-07 21:25:09,806 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-07 21:25:09,807 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-07 21:25:09,807 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-07 21:25:09,808 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-07 21:25:09,815 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:25:09" (1/1) ... [2024-09-07 21:25:09,830 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:25:09" (1/1) ... [2024-09-07 21:25:09,871 INFO L138 Inliner]: procedures = 24, calls = 32, calls flagged for inlining = 14, calls inlined = 20, statements flattened = 227 [2024-09-07 21:25:09,872 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-07 21:25:09,872 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-07 21:25:09,872 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-07 21:25:09,872 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-07 21:25:09,886 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:25:09" (1/1) ... [2024-09-07 21:25:09,887 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:25:09" (1/1) ... [2024-09-07 21:25:09,890 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:25:09" (1/1) ... [2024-09-07 21:25:09,890 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:25:09" (1/1) ... [2024-09-07 21:25:09,910 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:25:09" (1/1) ... [2024-09-07 21:25:09,918 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:25:09" (1/1) ... [2024-09-07 21:25:09,920 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:25:09" (1/1) ... [2024-09-07 21:25:09,922 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:25:09" (1/1) ... [2024-09-07 21:25:09,929 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-07 21:25:09,930 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-07 21:25:09,930 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-07 21:25:09,930 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-07 21:25:09,935 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:25:09" (1/1) ... [2024-09-07 21:25:09,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-07 21:25:09,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-07 21:25:09,975 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) [2024-09-07 21:25:09,979 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 [2024-09-07 21:25:10,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-07 21:25:10,037 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-09-07 21:25:10,037 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-09-07 21:25:10,037 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-09-07 21:25:10,038 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-09-07 21:25:10,038 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-09-07 21:25:10,038 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-09-07 21:25:10,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-07 21:25:10,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-07 21:25:10,038 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-09-07 21:25:10,038 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-09-07 21:25:10,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-09-07 21:25:10,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-07 21:25:10,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-07 21:25:10,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-07 21:25:10,042 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-09-07 21:25:10,178 INFO L242 CfgBuilder]: Building ICFG [2024-09-07 21:25:10,181 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-07 21:25:10,658 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-07 21:25:10,658 INFO L291 CfgBuilder]: Performing block encoding [2024-09-07 21:25:11,016 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-07 21:25:11,016 INFO L318 CfgBuilder]: Removed 4 assume(true) statements. [2024-09-07 21:25:11,016 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 09:25:11 BoogieIcfgContainer [2024-09-07 21:25:11,016 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-07 21:25:11,018 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-07 21:25:11,018 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-07 21:25:11,023 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-07 21:25:11,024 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 09:25:09" (1/4) ... [2024-09-07 21:25:11,025 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@765ed406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 09:25:11, skipping insertion in model container [2024-09-07 21:25:11,025 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.09 09:25:09" (2/4) ... [2024-09-07 21:25:11,025 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@765ed406 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.09 09:25:11, skipping insertion in model container [2024-09-07 21:25:11,025 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.09 09:25:09" (3/4) ... [2024-09-07 21:25:11,026 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@765ed406 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.09 09:25:11, skipping insertion in model container [2024-09-07 21:25:11,026 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 09:25:11" (4/4) ... [2024-09-07 21:25:11,027 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-mts.wvr.c [2024-09-07 21:25:11,046 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-07 21:25:11,047 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-09-07 21:25:11,047 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-07 21:25:11,107 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-09-07 21:25:11,149 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-07 21:25:11,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-07 21:25:11,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-07 21:25:11,152 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) [2024-09-07 21:25:11,154 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 [2024-09-07 21:25:11,183 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-07 21:25:11,193 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-07 21:25:11,199 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;@7a6f5241, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-07 21:25:11,199 INFO L337 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-09-07 21:25:11,294 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-09-07 21:25:11,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-07 21:25:11,303 INFO L85 PathProgramCache]: Analyzing trace with hash -711690352, now seen corresponding path program 1 times [2024-09-07 21:25:11,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-07 21:25:11,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215852535] [2024-09-07 21:25:11,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:25:11,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-07 21:25:11,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:25:11,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:25:11,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-07 21:25:11,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215852535] [2024-09-07 21:25:11,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215852535] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-07 21:25:11,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-07 21:25:11,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-07 21:25:11,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149826752] [2024-09-07 21:25:11,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-07 21:25:11,698 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-07 21:25:11,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-07 21:25:11,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-07 21:25:11,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-07 21:25:11,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:25:11,723 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-07 21:25:11,724 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-09-07 21:25:11,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:25:11,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-07 21:25:11,755 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-07 21:25:11,755 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-09-07 21:25:11,756 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-07 21:25:11,756 INFO L85 PathProgramCache]: Analyzing trace with hash -800520208, now seen corresponding path program 1 times [2024-09-07 21:25:11,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-07 21:25:11,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899433321] [2024-09-07 21:25:11,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:25:11,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-07 21:25:11,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:25:12,140 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:25:12,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-07 21:25:12,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899433321] [2024-09-07 21:25:12,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899433321] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-07 21:25:12,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808035187] [2024-09-07 21:25:12,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:25:12,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-07 21:25:12,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-07 21:25:12,144 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) [2024-09-07 21:25:12,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-07 21:25:12,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:25:12,247 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-07 21:25:12,251 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-07 21:25:12,420 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:25:12,421 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-07 21:25:12,875 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:25:12,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1808035187] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-07 21:25:12,876 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-07 21:25:12,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 8 [2024-09-07 21:25:12,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200123423] [2024-09-07 21:25:12,877 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-07 21:25:12,877 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-07 21:25:12,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-07 21:25:12,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-07 21:25:12,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-09-07 21:25:12,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:25:12,881 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-07 21:25:12,881 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 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) [2024-09-07 21:25:12,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-07 21:25:12,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:25:13,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-07 21:25:13,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-07 21:25:13,029 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-07 21:25:13,212 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-09-07 21:25:13,214 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-09-07 21:25:13,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-07 21:25:13,215 INFO L85 PathProgramCache]: Analyzing trace with hash 644190096, now seen corresponding path program 2 times [2024-09-07 21:25:13,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-07 21:25:13,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120895637] [2024-09-07 21:25:13,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:25:13,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-07 21:25:13,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:25:13,574 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:25:13,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-07 21:25:13,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120895637] [2024-09-07 21:25:13,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120895637] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-07 21:25:13,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893983682] [2024-09-07 21:25:13,576 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-07 21:25:13,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-07 21:25:13,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-07 21:25:13,579 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-07 21:25:13,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-07 21:25:13,662 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-07 21:25:13,663 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-07 21:25:13,664 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-07 21:25:13,665 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-07 21:25:13,814 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-07 21:25:13,815 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-07 21:25:13,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1893983682] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-07 21:25:13,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-07 21:25:13,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2024-09-07 21:25:13,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247009909] [2024-09-07 21:25:13,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-07 21:25:13,817 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-07 21:25:13,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-07 21:25:13,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-07 21:25:13,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-09-07 21:25:13,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:25:13,820 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-07 21:25:13,821 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-09-07 21:25:13,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-07 21:25:13,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-07 21:25:13,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:25:14,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-07 21:25:14,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-07 21:25:14,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:25:14,135 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-07 21:25:14,317 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-07 21:25:14,318 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-09-07 21:25:14,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-07 21:25:14,319 INFO L85 PathProgramCache]: Analyzing trace with hash 871801249, now seen corresponding path program 1 times [2024-09-07 21:25:14,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-07 21:25:14,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953491689] [2024-09-07 21:25:14,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:25:14,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-07 21:25:14,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:25:14,442 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-07 21:25:14,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-07 21:25:14,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953491689] [2024-09-07 21:25:14,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953491689] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-07 21:25:14,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-07 21:25:14,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-07 21:25:14,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603349665] [2024-09-07 21:25:14,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-07 21:25:14,444 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-07 21:25:14,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-07 21:25:14,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-07 21:25:14,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-07 21:25:14,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:25:14,445 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-07 21:25:14,445 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 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) [2024-09-07 21:25:14,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-07 21:25:14,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-07 21:25:14,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:25:14,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:25:14,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-07 21:25:14,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-07 21:25:14,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:25:14,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:25:14,549 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-07 21:25:14,549 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-09-07 21:25:14,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-07 21:25:14,550 INFO L85 PathProgramCache]: Analyzing trace with hash -551598876, now seen corresponding path program 1 times [2024-09-07 21:25:14,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-07 21:25:14,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209045427] [2024-09-07 21:25:14,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:25:14,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-07 21:25:14,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:25:14,708 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-07 21:25:14,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-07 21:25:14,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209045427] [2024-09-07 21:25:14,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209045427] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-07 21:25:14,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1630086741] [2024-09-07 21:25:14,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:25:14,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-07 21:25:14,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-07 21:25:14,712 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-07 21:25:14,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-07 21:25:14,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:25:14,821 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-07 21:25:14,823 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-07 21:25:14,976 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:25:14,977 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-07 21:25:15,154 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:25:15,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1630086741] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-07 21:25:15,154 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-07 21:25:15,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2024-09-07 21:25:15,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381011482] [2024-09-07 21:25:15,155 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-07 21:25:15,155 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-09-07 21:25:15,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-07 21:25:15,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-09-07 21:25:15,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2024-09-07 21:25:15,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:25:15,157 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-07 21:25:15,157 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.590909090909091) internal successors, (79), 22 states have internal predecessors, (79), 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) [2024-09-07 21:25:15,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-07 21:25:15,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-07 21:25:15,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:25:15,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:25:15,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:25:15,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-07 21:25:15,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-07 21:25:15,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:25:15,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:25:15,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-09-07 21:25:15,622 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-07 21:25:15,803 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-07 21:25:15,804 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-09-07 21:25:15,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-07 21:25:15,805 INFO L85 PathProgramCache]: Analyzing trace with hash 81228892, now seen corresponding path program 1 times [2024-09-07 21:25:15,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-07 21:25:15,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40974521] [2024-09-07 21:25:15,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:25:15,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-07 21:25:15,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:25:17,193 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:25:17,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-07 21:25:17,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40974521] [2024-09-07 21:25:17,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40974521] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-07 21:25:17,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1508804679] [2024-09-07 21:25:17,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:25:17,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-07 21:25:17,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-07 21:25:17,196 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) [2024-09-07 21:25:17,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-07 21:25:17,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:25:17,323 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-07 21:25:17,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-07 21:25:17,689 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-07 21:25:17,689 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-07 21:25:18,576 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-07 21:25:18,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1508804679] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-07 21:25:18,577 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-07 21:25:18,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 10] total 30 [2024-09-07 21:25:18,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786507460] [2024-09-07 21:25:18,578 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-07 21:25:18,579 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-09-07 21:25:18,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-07 21:25:18,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-09-07 21:25:18,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=802, Unknown=0, NotChecked=0, Total=992 [2024-09-07 21:25:18,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:25:18,583 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-07 21:25:18,584 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 2.838709677419355) internal successors, (88), 31 states have internal predecessors, (88), 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) [2024-09-07 21:25:18,584 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-07 21:25:18,584 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-07 21:25:18,584 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:25:18,584 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:25:18,584 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-09-07 21:25:18,584 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:25:19,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-07 21:25:19,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-07 21:25:19,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:25:19,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:25:19,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-09-07 21:25:19,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-07 21:25:19,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-09-07 21:25:19,815 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,SelfDestructingSolverStorable5 [2024-09-07 21:25:19,816 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-09-07 21:25:19,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-07 21:25:19,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1758580828, now seen corresponding path program 2 times [2024-09-07 21:25:19,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-07 21:25:19,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094847818] [2024-09-07 21:25:19,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-07 21:25:19,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-07 21:25:19,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-07 21:25:20,655 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-07 21:25:20,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-07 21:25:20,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094847818] [2024-09-07 21:25:20,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094847818] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-07 21:25:20,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974400201] [2024-09-07 21:25:20,657 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-07 21:25:20,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-07 21:25:20,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-07 21:25:20,659 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-07 21:25:20,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-07 21:25:20,770 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-07 21:25:20,770 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-07 21:25:20,771 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-07 21:25:20,775 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-07 21:25:21,026 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-09-07 21:25:21,026 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-07 21:25:21,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1974400201] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-07 21:25:21,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-07 21:25:21,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [17] total 20 [2024-09-07 21:25:21,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548265027] [2024-09-07 21:25:21,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-07 21:25:21,027 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-07 21:25:21,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-07 21:25:21,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-07 21:25:21,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=412, Unknown=0, NotChecked=0, Total=462 [2024-09-07 21:25:21,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:25:21,029 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-07 21:25:21,029 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 4 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) [2024-09-07 21:25:21,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-07 21:25:21,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-07 21:25:21,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:25:21,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:25:21,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-09-07 21:25:21,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-07 21:25:21,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-07 21:25:23,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-07 21:25:23,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-07 21:25:23,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:25:23,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-07 21:25:23,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-09-07 21:25:23,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-09-07 21:25:23,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-07 21:25:23,613 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 6 remaining) [2024-09-07 21:25:23,613 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 6 remaining) [2024-09-07 21:25:23,616 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 6 remaining) [2024-09-07 21:25:23,616 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-09-07 21:25:23,616 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-09-07 21:25:23,617 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-09-07 21:25:23,631 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-07 21:25:23,817 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-07 21:25:23,823 INFO L408 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1] [2024-09-07 21:25:23,826 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-09-07 21:25:23,826 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-07 21:25:23,828 INFO L469 ceAbstractionStarter]: Automizer considered 3 witness invariants [2024-09-07 21:25:23,828 INFO L470 ceAbstractionStarter]: WitnessConsidered=3 [2024-09-07 21:25:23,829 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.09 09:25:23 BasicIcfg [2024-09-07 21:25:23,829 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-07 21:25:23,829 INFO L158 Benchmark]: Toolchain (without parser) took 14402.22ms. Allocated memory was 127.9MB in the beginning and 339.7MB in the end (delta: 211.8MB). Free memory was 73.0MB in the beginning and 228.4MB in the end (delta: -155.5MB). Peak memory consumption was 58.0MB. Max. memory is 16.1GB. [2024-09-07 21:25:23,830 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 127.9MB. Free memory is still 99.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-07 21:25:23,830 INFO L158 Benchmark]: Witness Parser took 0.12ms. Allocated memory is still 127.9MB. Free memory is still 75.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-07 21:25:23,830 INFO L158 Benchmark]: CACSL2BoogieTranslator took 376.25ms. Allocated memory was 127.9MB in the beginning and 161.5MB in the end (delta: 33.6MB). Free memory was 72.6MB in the beginning and 131.5MB in the end (delta: -58.8MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2024-09-07 21:25:23,830 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.50ms. Allocated memory is still 161.5MB. Free memory was 131.5MB in the beginning and 128.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-07 21:25:23,831 INFO L158 Benchmark]: Boogie Preprocessor took 57.21ms. Allocated memory is still 161.5MB. Free memory was 128.5MB in the beginning and 126.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-07 21:25:23,831 INFO L158 Benchmark]: RCFGBuilder took 1086.29ms. Allocated memory is still 161.5MB. Free memory was 126.4MB in the beginning and 105.9MB in the end (delta: 20.5MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2024-09-07 21:25:23,831 INFO L158 Benchmark]: TraceAbstraction took 12810.94ms. Allocated memory was 161.5MB in the beginning and 339.7MB in the end (delta: 178.3MB). Free memory was 105.9MB in the beginning and 228.4MB in the end (delta: -122.6MB). Peak memory consumption was 57.0MB. Max. memory is 16.1GB. [2024-09-07 21:25:23,833 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 127.9MB. Free memory is still 99.3MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.12ms. Allocated memory is still 127.9MB. Free memory is still 75.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 376.25ms. Allocated memory was 127.9MB in the beginning and 161.5MB in the end (delta: 33.6MB). Free memory was 72.6MB in the beginning and 131.5MB in the end (delta: -58.8MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.50ms. Allocated memory is still 161.5MB. Free memory was 131.5MB in the beginning and 128.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.21ms. Allocated memory is still 161.5MB. Free memory was 128.5MB in the beginning and 126.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1086.29ms. Allocated memory is still 161.5MB. Free memory was 126.4MB in the beginning and 105.9MB in the end (delta: 20.5MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * TraceAbstraction took 12810.94ms. Allocated memory was 161.5MB in the beginning and 339.7MB in the end (delta: 178.3MB). Free memory was 105.9MB in the beginning and 228.4MB in the end (delta: -122.6MB). Peak memory consumption was 57.0MB. 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: 12825, independent: 11256, independent conditional: 10770, independent unconditional: 486, dependent: 1569, dependent conditional: 1561, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11271, independent: 11256, independent conditional: 10770, independent unconditional: 486, dependent: 15, dependent conditional: 7, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 11271, independent: 11256, independent conditional: 10770, independent unconditional: 486, dependent: 15, dependent conditional: 7, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11860, independent: 11256, independent conditional: 10770, independent unconditional: 486, dependent: 604, dependent conditional: 596, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 11860, independent: 11256, independent conditional: 533, independent unconditional: 10723, dependent: 604, dependent conditional: 54, dependent unconditional: 550, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 11860, independent: 11256, independent conditional: 533, independent unconditional: 10723, dependent: 604, dependent conditional: 54, dependent unconditional: 550, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 498, independent: 482, independent conditional: 12, independent unconditional: 470, dependent: 16, dependent conditional: 7, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 498, independent: 468, independent conditional: 0, independent unconditional: 468, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 30, independent: 14, independent conditional: 12, independent unconditional: 2, dependent: 16, dependent conditional: 7, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 30, independent: 14, independent conditional: 12, independent unconditional: 2, dependent: 16, dependent conditional: 7, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 291, independent: 150, independent conditional: 109, independent unconditional: 41, dependent: 141, dependent conditional: 68, dependent unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 11860, independent: 10774, independent conditional: 521, independent unconditional: 10253, dependent: 588, dependent conditional: 47, dependent unconditional: 541, unknown: 498, unknown conditional: 19, unknown unconditional: 479] , Statistics on independence cache: Total cache size (in pairs): 498, Positive cache size: 482, Positive conditional cache size: 12, Positive unconditional cache size: 470, Negative cache size: 16, Negative conditional cache size: 7, Negative unconditional cache size: 9, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 10779, Maximal queried relation: 4, Independence queries for same thread: 1554, Persistent sets #1 benchmarks: Persistent set computation time: 0.2s, Number of persistent set computation: 94, Number of trivial persistent sets: 38, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 494, independent: 486, independent conditional: 0, independent unconditional: 486, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 12825, independent: 11256, independent conditional: 10770, independent unconditional: 486, dependent: 1569, dependent conditional: 1561, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11271, independent: 11256, independent conditional: 10770, independent unconditional: 486, dependent: 15, dependent conditional: 7, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 11271, independent: 11256, independent conditional: 10770, independent unconditional: 486, dependent: 15, dependent conditional: 7, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11860, independent: 11256, independent conditional: 10770, independent unconditional: 486, dependent: 604, dependent conditional: 596, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 11860, independent: 11256, independent conditional: 533, independent unconditional: 10723, dependent: 604, dependent conditional: 54, dependent unconditional: 550, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 11860, independent: 11256, independent conditional: 533, independent unconditional: 10723, dependent: 604, dependent conditional: 54, dependent unconditional: 550, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 498, independent: 482, independent conditional: 12, independent unconditional: 470, dependent: 16, dependent conditional: 7, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 498, independent: 468, independent conditional: 0, independent unconditional: 468, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 30, independent: 14, independent conditional: 12, independent unconditional: 2, dependent: 16, dependent conditional: 7, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 30, independent: 14, independent conditional: 12, independent unconditional: 2, dependent: 16, dependent conditional: 7, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 291, independent: 150, independent conditional: 109, independent unconditional: 41, dependent: 141, dependent conditional: 68, dependent unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 11860, independent: 10774, independent conditional: 521, independent unconditional: 10253, dependent: 588, dependent conditional: 47, dependent unconditional: 541, unknown: 498, unknown conditional: 19, unknown unconditional: 479] , Statistics on independence cache: Total cache size (in pairs): 498, Positive cache size: 482, Positive conditional cache size: 12, Positive unconditional cache size: 470, Negative cache size: 16, Negative conditional cache size: 7, Negative unconditional cache size: 9, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 10779, Maximal queried relation: 4, Independence queries for same thread: 1554 - PositiveResult [Line: 85]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 86]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 87]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 47 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 12.7s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 4.7s, 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: 94, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 263 NumberOfCodeBlocks, 244 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 315 ConstructedInterpolants, 0 QuantifiedInterpolants, 4214 SizeOfPredicates, 13 NumberOfNonLiveVariables, 814 ConjunctsInSsa, 72 ConjunctsInUnsatCore, 15 InterpolantComputations, 4 PerfectInterpolantSequences, 118/234 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-09-07 21:25:23,857 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 [2024-09-07 21:25:24,059 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE