./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-09-02_08-21-23.files/mutex-meet-local/13-privatized_69-refine-protected-loop-interval_true.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/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i ./goblint.2024-09-02_08-21-23.files/mutex-meet-local/13-privatized_69-refine-protected-loop-interval_true.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 [2024-09-23 16:47:09,891 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-23 16:47:09,950 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-23 16:47:09,955 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-23 16:47:09,956 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-23 16:47:09,982 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-23 16:47:09,982 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-23 16:47:09,983 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-23 16:47:09,983 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-23 16:47:09,983 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-23 16:47:09,984 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-23 16:47:09,984 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-23 16:47:09,984 INFO L153 SettingsManager]: * Use SBE=true [2024-09-23 16:47:09,984 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-23 16:47:09,985 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-23 16:47:09,985 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-23 16:47:09,987 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-23 16:47:09,987 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-23 16:47:09,988 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-23 16:47:09,988 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-23 16:47:09,988 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-23 16:47:09,991 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-23 16:47:09,992 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-23 16:47:09,992 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-23 16:47:09,992 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-23 16:47:09,992 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-23 16:47:09,992 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-23 16:47:09,993 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-23 16:47:09,993 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-23 16:47:09,993 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-23 16:47:09,993 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-23 16:47:09,994 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-23 16:47:09,994 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-23 16:47:09,994 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-23 16:47:09,995 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-23 16:47:09,995 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-23 16:47:09,995 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-23 16:47:09,995 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-23 16:47:09,995 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-23 16:47:09,995 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-23 16:47:09,995 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-23 16:47:09,996 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-09-23 16:47:10,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-23 16:47:10,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-23 16:47:10,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-23 16:47:10,204 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-23 16:47:10,208 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-23 16:47:10,209 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-09-02_08-21-23.files/mutex-meet-local/13-privatized_69-refine-protected-loop-interval_true.yml/witness.yml [2024-09-23 16:47:10,247 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-23 16:47:10,247 INFO L274 PluginConnector]: CDTParser initialized [2024-09-23 16:47:10,247 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i [2024-09-23 16:47:11,527 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-23 16:47:11,702 INFO L384 CDTParser]: Found 1 translation units. [2024-09-23 16:47:11,702 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i [2024-09-23 16:47:11,717 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/6d7a7659f/317a43da5cf142359a346b14be7812ca/FLAG29923e9e6 [2024-09-23 16:47:11,730 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/6d7a7659f/317a43da5cf142359a346b14be7812ca [2024-09-23 16:47:11,731 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-23 16:47:11,732 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-23 16:47:11,733 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-23 16:47:11,733 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-23 16:47:11,738 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-23 16:47:11,738 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.09 04:47:10" (1/2) ... [2024-09-23 16:47:11,739 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@94ff526 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.09 04:47:11, skipping insertion in model container [2024-09-23 16:47:11,739 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.09 04:47:10" (1/2) ... [2024-09-23 16:47:11,740 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1f3ee6f3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.09 04:47:11, skipping insertion in model container [2024-09-23 16:47:11,740 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.09 04:47:11" (2/2) ... [2024-09-23 16:47:11,740 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@94ff526 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 04:47:11, skipping insertion in model container [2024-09-23 16:47:11,740 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.09 04:47:11" (2/2) ... [2024-09-23 16:47:11,755 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-23 16:47:11,755 INFO L1541 ArrayList]: Location invariant before [L710-L711] (0 <= g) && (g <= 1000) [2024-09-23 16:47:11,785 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-23 16:47:11,919 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i[1107,1120] [2024-09-23 16:47:12,040 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-23 16:47:12,049 INFO L200 MainTranslator]: Completed pre-run [2024-09-23 16:47:12,062 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i[1107,1120] Start Parsing Local [2024-09-23 16:47:12,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-23 16:47:12,134 INFO L204 MainTranslator]: Completed translation [2024-09-23 16:47:12,135 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 04:47:12 WrapperNode [2024-09-23 16:47:12,135 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-23 16:47:12,136 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-23 16:47:12,136 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-23 16:47:12,136 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-23 16:47:12,141 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 04:47:12" (1/1) ... [2024-09-23 16:47:12,153 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 04:47:12" (1/1) ... [2024-09-23 16:47:12,169 INFO L138 Inliner]: procedures = 165, calls = 23, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 101 [2024-09-23 16:47:12,170 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-23 16:47:12,170 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-23 16:47:12,171 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-23 16:47:12,171 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-23 16:47:12,177 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 04:47:12" (1/1) ... [2024-09-23 16:47:12,177 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 04:47:12" (1/1) ... [2024-09-23 16:47:12,179 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 04:47:12" (1/1) ... [2024-09-23 16:47:12,179 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 04:47:12" (1/1) ... [2024-09-23 16:47:12,182 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 04:47:12" (1/1) ... [2024-09-23 16:47:12,184 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 04:47:12" (1/1) ... [2024-09-23 16:47:12,186 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 04:47:12" (1/1) ... [2024-09-23 16:47:12,187 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 04:47:12" (1/1) ... [2024-09-23 16:47:12,188 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-23 16:47:12,189 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-23 16:47:12,189 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-23 16:47:12,189 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-23 16:47:12,189 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 04:47:12" (1/1) ... [2024-09-23 16:47:12,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-23 16:47:12,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 16:47:12,213 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-09-23 16:47:12,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-09-23 16:47:12,243 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2024-09-23 16:47:12,243 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2024-09-23 16:47:12,243 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-09-23 16:47:12,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-23 16:47:12,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-23 16:47:12,243 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-09-23 16:47:12,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-23 16:47:12,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-23 16:47:12,244 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-09-23 16:47:12,329 INFO L242 CfgBuilder]: Building ICFG [2024-09-23 16:47:12,330 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-23 16:47:12,448 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-23 16:47:12,448 INFO L291 CfgBuilder]: Performing block encoding [2024-09-23 16:47:12,535 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-23 16:47:12,535 INFO L318 CfgBuilder]: Removed 3 assume(true) statements. [2024-09-23 16:47:12,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.09 04:47:12 BoogieIcfgContainer [2024-09-23 16:47:12,535 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-23 16:47:12,551 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-23 16:47:12,551 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-23 16:47:12,554 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-23 16:47:12,555 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.09 04:47:10" (1/4) ... [2024-09-23 16:47:12,556 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@554add53 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 23.09 04:47:12, skipping insertion in model container [2024-09-23 16:47:12,556 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.09 04:47:11" (2/4) ... [2024-09-23 16:47:12,557 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@554add53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.09 04:47:12, skipping insertion in model container [2024-09-23 16:47:12,557 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 04:47:12" (3/4) ... [2024-09-23 16:47:12,557 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@554add53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.09 04:47:12, skipping insertion in model container [2024-09-23 16:47:12,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.09 04:47:12" (4/4) ... [2024-09-23 16:47:12,558 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_69-refine-protected-loop-interval_true.i [2024-09-23 16:47:12,570 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-23 16:47:12,570 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-09-23 16:47:12,571 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-23 16:47:12,593 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-09-23 16:47:12,624 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-23 16:47:12,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-23 16:47:12,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 16:47:12,626 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-23 16:47:12,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-09-23 16:47:12,653 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-23 16:47:12,662 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == workerThread1of1ForFork0 ======== [2024-09-23 16:47:12,667 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;@6b08b648, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-23 16:47:12,669 INFO L337 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-09-23 16:47:12,740 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-23 16:47:12,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 16:47:12,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1211646324, now seen corresponding path program 1 times [2024-09-23 16:47:12,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 16:47:12,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027943117] [2024-09-23 16:47:12,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 16:47:12,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 16:47:12,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 16:47:12,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 16:47:12,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 16:47:12,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027943117] [2024-09-23 16:47:12,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027943117] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 16:47:12,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 16:47:12,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-23 16:47:12,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505124239] [2024-09-23 16:47:12,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 16:47:12,977 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-23 16:47:12,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 16:47:12,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-23 16:47:12,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-23 16:47:12,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 16:47:12,998 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 16:47:12,999 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 16:47:12,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 16:47:13,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 16:47:13,052 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-23 16:47:13,052 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-23 16:47:13,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 16:47:13,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1204038589, now seen corresponding path program 1 times [2024-09-23 16:47:13,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 16:47:13,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761168426] [2024-09-23 16:47:13,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 16:47:13,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 16:47:13,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 16:47:13,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 16:47:13,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 16:47:13,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761168426] [2024-09-23 16:47:13,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761168426] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 16:47:13,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 16:47:13,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-23 16:47:13,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25307016] [2024-09-23 16:47:13,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 16:47:13,169 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-23 16:47:13,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 16:47:13,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-23 16:47:13,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-23 16:47:13,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 16:47:13,173 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 16:47:13,173 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 16:47:13,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 16:47:13,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 16:47:13,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 16:47:13,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 16:47:13,201 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-23 16:47:13,202 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-23 16:47:13,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 16:47:13,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1813004127, now seen corresponding path program 1 times [2024-09-23 16:47:13,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 16:47:13,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360703447] [2024-09-23 16:47:13,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 16:47:13,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 16:47:13,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 16:47:13,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 16:47:13,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 16:47:13,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360703447] [2024-09-23 16:47:13,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360703447] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 16:47:13,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 16:47:13,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-23 16:47:13,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845063637] [2024-09-23 16:47:13,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 16:47:13,270 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-23 16:47:13,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 16:47:13,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-23 16:47:13,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-23 16:47:13,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 16:47:13,271 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 16:47:13,271 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 16:47:13,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 16:47:13,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 16:47:13,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 16:47:13,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 16:47:13,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 16:47:13,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-23 16:47:13,358 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-23 16:47:13,358 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-23 16:47:13,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 16:47:13,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1400545021, now seen corresponding path program 2 times [2024-09-23 16:47:13,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 16:47:13,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155426055] [2024-09-23 16:47:13,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 16:47:13,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 16:47:13,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 16:47:13,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 16:47:13,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 16:47:13,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155426055] [2024-09-23 16:47:13,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155426055] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 16:47:13,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 16:47:13,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-23 16:47:13,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288517835] [2024-09-23 16:47:13,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 16:47:13,475 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-23 16:47:13,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 16:47:13,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-23 16:47:13,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-23 16:47:13,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 16:47:13,476 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 16:47:13,477 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 16:47:13,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 16:47:13,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 16:47:13,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-23 16:47:13,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 16:47:13,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 16:47:13,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 16:47:13,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-23 16:47:13,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 16:47:13,607 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-23 16:47:13,607 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-23 16:47:13,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 16:47:13,608 INFO L85 PathProgramCache]: Analyzing trace with hash -869584788, now seen corresponding path program 1 times [2024-09-23 16:47:13,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 16:47:13,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690732718] [2024-09-23 16:47:13,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 16:47:13,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 16:47:13,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 16:47:13,756 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-23 16:47:13,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 16:47:13,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690732718] [2024-09-23 16:47:13,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690732718] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 16:47:13,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 16:47:13,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-23 16:47:13,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411591035] [2024-09-23 16:47:13,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 16:47:13,757 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-23 16:47:13,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 16:47:13,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-23 16:47:13,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-23 16:47:13,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 16:47:13,758 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 16:47:13,758 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 16:47:13,758 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 16:47:13,758 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 16:47:13,758 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-23 16:47:13,758 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 16:47:13,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 16:47:13,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 16:47:13,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 16:47:13,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-23 16:47:13,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 16:47:13,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 16:47:13,853 INFO L785 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-09-23 16:47:13,853 INFO L785 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-09-23 16:47:13,853 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-23 16:47:13,858 INFO L408 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2024-09-23 16:47:13,859 INFO L312 ceAbstractionStarter]: Result for error location workerThread1of1ForFork0 was SAFE,SAFE (1/2) [2024-09-23 16:47:13,861 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-23 16:47:13,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-23 16:47:13,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 16:47:13,884 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-23 16:47:13,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2024-09-23 16:47:13,888 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-23 16:47:13,888 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-23 16:47:13,888 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;@6b08b648, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-23 16:47:13,889 INFO L337 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-09-23 16:47:13,921 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-23 16:47:13,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 16:47:13,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1812977916, now seen corresponding path program 1 times [2024-09-23 16:47:13,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 16:47:13,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90853515] [2024-09-23 16:47:13,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 16:47:13,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 16:47:13,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 16:47:13,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 16:47:13,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 16:47:13,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90853515] [2024-09-23 16:47:13,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90853515] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 16:47:13,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 16:47:13,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-09-23 16:47:13,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270027988] [2024-09-23 16:47:13,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 16:47:13,948 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-23 16:47:13,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 16:47:13,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-23 16:47:13,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-23 16:47:13,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 16:47:13,949 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 16:47:13,949 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 16:47:13,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 16:47:13,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 16:47:13,977 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-09-23 16:47:13,977 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-23 16:47:13,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 16:47:13,977 INFO L85 PathProgramCache]: Analyzing trace with hash 782302803, now seen corresponding path program 1 times [2024-09-23 16:47:13,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 16:47:13,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591895302] [2024-09-23 16:47:13,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 16:47:13,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 16:47:13,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 16:47:14,010 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-23 16:47:14,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 16:47:14,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591895302] [2024-09-23 16:47:14,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591895302] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 16:47:14,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 16:47:14,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-23 16:47:14,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013252098] [2024-09-23 16:47:14,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 16:47:14,011 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-23 16:47:14,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 16:47:14,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-23 16:47:14,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-23 16:47:14,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 16:47:14,011 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 16:47:14,012 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) 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) [2024-09-23 16:47:14,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 16:47:14,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 16:47:14,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 16:47:14,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 16:47:14,062 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-23 16:47:14,062 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-23 16:47:14,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 16:47:14,062 INFO L85 PathProgramCache]: Analyzing trace with hash -213970224, now seen corresponding path program 1 times [2024-09-23 16:47:14,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 16:47:14,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913703115] [2024-09-23 16:47:14,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 16:47:14,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 16:47:14,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 16:47:14,140 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-23 16:47:14,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 16:47:14,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913703115] [2024-09-23 16:47:14,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913703115] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 16:47:14,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 16:47:14,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-23 16:47:14,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409503938] [2024-09-23 16:47:14,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 16:47:14,142 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-23 16:47:14,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 16:47:14,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-23 16:47:14,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-23 16:47:14,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 16:47:14,143 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 16:47:14,143 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 16:47:14,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 16:47:14,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 16:47:14,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 16:47:14,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 16:47:14,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 16:47:14,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 16:47:14,189 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-09-23 16:47:14,190 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-23 16:47:14,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 16:47:14,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1656442631, now seen corresponding path program 1 times [2024-09-23 16:47:14,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 16:47:14,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227686661] [2024-09-23 16:47:14,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 16:47:14,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 16:47:14,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 16:47:14,261 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-23 16:47:14,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 16:47:14,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227686661] [2024-09-23 16:47:14,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227686661] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 16:47:14,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 16:47:14,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-23 16:47:14,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61199211] [2024-09-23 16:47:14,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 16:47:14,262 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-23 16:47:14,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 16:47:14,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-23 16:47:14,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-23 16:47:14,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 16:47:14,262 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 16:47:14,263 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 16:47:14,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 16:47:14,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 16:47:14,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 16:47:14,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 16:47:14,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 16:47:14,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 16:47:14,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 16:47:14,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 16:47:14,327 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-09-23 16:47:14,327 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-23 16:47:14,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 16:47:14,328 INFO L85 PathProgramCache]: Analyzing trace with hash -564471402, now seen corresponding path program 1 times [2024-09-23 16:47:14,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 16:47:14,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315178778] [2024-09-23 16:47:14,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 16:47:14,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 16:47:14,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 16:47:14,389 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-09-23 16:47:14,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 16:47:14,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315178778] [2024-09-23 16:47:14,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315178778] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 16:47:14,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 16:47:14,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-23 16:47:14,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726312324] [2024-09-23 16:47:14,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 16:47:14,390 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-23 16:47:14,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 16:47:14,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-23 16:47:14,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-23 16:47:14,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 16:47:14,392 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 16:47:14,392 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 16:47:14,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 16:47:14,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 16:47:14,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 16:47:14,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 16:47:14,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 16:47:14,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 16:47:14,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 16:47:14,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 16:47:14,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 16:47:14,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 16:47:14,426 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-09-23 16:47:14,426 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-23 16:47:14,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 16:47:14,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1323224437, now seen corresponding path program 2 times [2024-09-23 16:47:14,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 16:47:14,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494688519] [2024-09-23 16:47:14,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 16:47:14,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 16:47:14,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 16:47:14,582 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-09-23 16:47:14,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 16:47:14,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494688519] [2024-09-23 16:47:14,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494688519] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 16:47:14,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 16:47:14,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-23 16:47:14,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268651175] [2024-09-23 16:47:14,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 16:47:14,583 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-23 16:47:14,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 16:47:14,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-23 16:47:14,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-23 16:47:14,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 16:47:14,584 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 16:47:14,585 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 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) [2024-09-23 16:47:14,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 16:47:14,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 16:47:14,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 16:47:14,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 16:47:14,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 16:47:14,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 16:47:14,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 16:47:14,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 16:47:14,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 16:47:14,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 16:47:14,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 16:47:14,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-23 16:47:14,645 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 2 remaining) [2024-09-23 16:47:14,645 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-09-23 16:47:14,645 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-09-23 16:47:14,646 INFO L408 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2024-09-23 16:47:14,646 INFO L312 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE (2/2) [2024-09-23 16:47:14,647 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-09-23 16:47:14,647 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-23 16:47:14,649 INFO L469 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-09-23 16:47:14,649 INFO L470 ceAbstractionStarter]: WitnessConsidered=1 [2024-09-23 16:47:14,649 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.09 04:47:14 BasicIcfg [2024-09-23 16:47:14,649 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-23 16:47:14,650 INFO L158 Benchmark]: Toolchain (without parser) took 2917.87ms. Allocated memory was 155.2MB in the beginning and 226.5MB in the end (delta: 71.3MB). Free memory was 98.9MB in the beginning and 174.9MB in the end (delta: -76.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-23 16:47:14,650 INFO L158 Benchmark]: Witness Parser took 0.10ms. Allocated memory is still 155.2MB. Free memory is still 120.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-23 16:47:14,650 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 155.2MB. Free memory is still 118.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-23 16:47:14,650 INFO L158 Benchmark]: CACSL2BoogieTranslator took 402.23ms. Allocated memory is still 155.2MB. Free memory was 98.9MB in the beginning and 75.7MB in the end (delta: 23.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-09-23 16:47:14,650 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.96ms. Allocated memory is still 155.2MB. Free memory was 75.7MB in the beginning and 73.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-23 16:47:14,650 INFO L158 Benchmark]: Boogie Preprocessor took 17.96ms. Allocated memory is still 155.2MB. Free memory was 73.8MB in the beginning and 72.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-23 16:47:14,650 INFO L158 Benchmark]: RCFGBuilder took 346.72ms. Allocated memory is still 155.2MB. Free memory was 72.3MB in the beginning and 45.2MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-09-23 16:47:14,651 INFO L158 Benchmark]: TraceAbstraction took 2098.64ms. Allocated memory was 155.2MB in the beginning and 226.5MB in the end (delta: 71.3MB). Free memory was 123.0MB in the beginning and 174.9MB in the end (delta: -51.9MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2024-09-23 16:47:14,652 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 0.10ms. Allocated memory is still 155.2MB. Free memory is still 120.8MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.08ms. Allocated memory is still 155.2MB. Free memory is still 118.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 402.23ms. Allocated memory is still 155.2MB. Free memory was 98.9MB in the beginning and 75.7MB in the end (delta: 23.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.96ms. Allocated memory is still 155.2MB. Free memory was 75.7MB in the beginning and 73.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.96ms. Allocated memory is still 155.2MB. Free memory was 73.8MB in the beginning and 72.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 346.72ms. Allocated memory is still 155.2MB. Free memory was 72.3MB in the beginning and 45.2MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2098.64ms. Allocated memory was 155.2MB in the beginning and 226.5MB in the end (delta: 71.3MB). Free memory was 123.0MB in the beginning and 174.9MB in the end (delta: -51.9MB). Peak memory consumption was 18.2MB. 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: 1028, independent: 888, independent conditional: 345, independent unconditional: 543, dependent: 140, dependent conditional: 132, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 902, independent: 888, independent conditional: 345, independent unconditional: 543, dependent: 14, dependent conditional: 6, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 902, independent: 888, independent conditional: 345, independent unconditional: 543, dependent: 14, dependent conditional: 6, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 913, independent: 888, independent conditional: 345, independent unconditional: 543, dependent: 25, dependent conditional: 17, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 913, independent: 888, independent conditional: 0, independent unconditional: 888, dependent: 25, dependent conditional: 6, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 913, independent: 888, independent conditional: 0, independent unconditional: 888, dependent: 25, dependent conditional: 6, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 362, independent: 351, independent conditional: 0, independent unconditional: 351, dependent: 11, dependent conditional: 3, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 362, independent: 347, independent conditional: 0, independent unconditional: 347, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 15, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 11, dependent conditional: 3, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 15, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 11, dependent conditional: 3, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 64, independent: 31, independent conditional: 0, independent unconditional: 31, dependent: 32, dependent conditional: 8, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 913, independent: 537, independent conditional: 0, independent unconditional: 537, dependent: 14, dependent conditional: 3, dependent unconditional: 11, unknown: 362, unknown conditional: 3, unknown unconditional: 359] , Statistics on independence cache: Total cache size (in pairs): 362, Positive cache size: 351, Positive conditional cache size: 0, Positive unconditional cache size: 351, Negative cache size: 11, Negative conditional cache size: 3, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 356, Maximal queried relation: 3, Independence queries for same thread: 126, Persistent sets #1 benchmarks: Persistent set computation time: 0.1s, Number of persistent set computation: 113, Number of trivial persistent sets: 102, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 551, independent: 543, independent conditional: 0, independent unconditional: 543, 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: 1028, independent: 888, independent conditional: 345, independent unconditional: 543, dependent: 140, dependent conditional: 132, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 902, independent: 888, independent conditional: 345, independent unconditional: 543, dependent: 14, dependent conditional: 6, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 902, independent: 888, independent conditional: 345, independent unconditional: 543, dependent: 14, dependent conditional: 6, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 913, independent: 888, independent conditional: 345, independent unconditional: 543, dependent: 25, dependent conditional: 17, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 913, independent: 888, independent conditional: 0, independent unconditional: 888, dependent: 25, dependent conditional: 6, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 913, independent: 888, independent conditional: 0, independent unconditional: 888, dependent: 25, dependent conditional: 6, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 362, independent: 351, independent conditional: 0, independent unconditional: 351, dependent: 11, dependent conditional: 3, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 362, independent: 347, independent conditional: 0, independent unconditional: 347, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 15, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 11, dependent conditional: 3, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 15, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 11, dependent conditional: 3, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 64, independent: 31, independent conditional: 0, independent unconditional: 31, dependent: 32, dependent conditional: 8, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 913, independent: 537, independent conditional: 0, independent unconditional: 537, dependent: 14, dependent conditional: 3, dependent unconditional: 11, unknown: 362, unknown conditional: 3, unknown unconditional: 359] , Statistics on independence cache: Total cache size (in pairs): 362, Positive cache size: 351, Positive conditional cache size: 0, Positive unconditional cache size: 351, Negative cache size: 11, Negative conditional cache size: 3, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 356, Maximal queried relation: 3, Independence queries for same thread: 126 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1302, independent: 1153, independent conditional: 616, independent unconditional: 537, dependent: 149, dependent conditional: 139, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1178, independent: 1153, independent conditional: 616, independent unconditional: 537, dependent: 25, dependent conditional: 15, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1178, independent: 1153, independent conditional: 616, independent unconditional: 537, dependent: 25, dependent conditional: 15, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1209, independent: 1153, independent conditional: 616, independent unconditional: 537, dependent: 56, dependent conditional: 46, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1209, independent: 1153, independent conditional: 0, independent unconditional: 1153, dependent: 56, dependent conditional: 15, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1209, independent: 1153, independent conditional: 0, independent unconditional: 1153, dependent: 56, dependent conditional: 15, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 396, independent: 382, independent conditional: 0, independent unconditional: 382, dependent: 14, dependent conditional: 4, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 396, independent: 378, independent conditional: 0, independent unconditional: 378, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 18, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 14, dependent conditional: 4, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 18, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 14, dependent conditional: 4, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 44, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 24, dependent conditional: 7, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1209, independent: 771, independent conditional: 0, independent unconditional: 771, dependent: 42, dependent conditional: 11, dependent unconditional: 31, unknown: 396, unknown conditional: 4, unknown unconditional: 392] , Statistics on independence cache: Total cache size (in pairs): 396, Positive cache size: 382, Positive conditional cache size: 0, Positive unconditional cache size: 382, Negative cache size: 14, Negative conditional cache size: 4, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 647, Maximal queried relation: 4, Independence queries for same thread: 124, Persistent sets #1 benchmarks: Persistent set computation time: 0.0s, Number of persistent set computation: 107, Number of trivial persistent sets: 97, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 547, independent: 537, independent conditional: 0, independent unconditional: 537, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1302, independent: 1153, independent conditional: 616, independent unconditional: 537, dependent: 149, dependent conditional: 139, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1178, independent: 1153, independent conditional: 616, independent unconditional: 537, dependent: 25, dependent conditional: 15, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1178, independent: 1153, independent conditional: 616, independent unconditional: 537, dependent: 25, dependent conditional: 15, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1209, independent: 1153, independent conditional: 616, independent unconditional: 537, dependent: 56, dependent conditional: 46, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1209, independent: 1153, independent conditional: 0, independent unconditional: 1153, dependent: 56, dependent conditional: 15, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1209, independent: 1153, independent conditional: 0, independent unconditional: 1153, dependent: 56, dependent conditional: 15, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 396, independent: 382, independent conditional: 0, independent unconditional: 382, dependent: 14, dependent conditional: 4, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 396, independent: 378, independent conditional: 0, independent unconditional: 378, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 18, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 14, dependent conditional: 4, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 18, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 14, dependent conditional: 4, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 44, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 24, dependent conditional: 7, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1209, independent: 771, independent conditional: 0, independent unconditional: 771, dependent: 42, dependent conditional: 11, dependent unconditional: 31, unknown: 396, unknown conditional: 4, unknown unconditional: 392] , Statistics on independence cache: Total cache size (in pairs): 396, Positive cache size: 382, Positive conditional cache size: 0, Positive unconditional cache size: 382, Negative cache size: 14, Negative conditional cache size: 4, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 647, Maximal queried relation: 4, Independence queries for same thread: 124 - PositiveResult [Line: 19]: 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: 19]: 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: 710]: 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: workerThread1of1ForFork0 with 1 thread instances CFG has 3 procedures, 53 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 5, 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: 19, 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, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 94 NumberOfCodeBlocks, 94 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 89 ConstructedInterpolants, 0 QuantifiedInterpolants, 193 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 13/13 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 3 procedures, 53 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.3s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 217 NumberOfCodeBlocks, 217 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 211 ConstructedInterpolants, 0 QuantifiedInterpolants, 389 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 188/188 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! [2024-09-23 16:47:14,680 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Ended with exit code 0 [2024-09-23 16:47:14,876 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2024-09-23 16:47:15,077 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE